#include "semihosting/semihost.h"
#include "trace.h"
-#include "trace-tcg.h"
#include "exec/translator.h"
#include "exec/log.h"
#include "qemu/qemu-print.h"
R6_OPC_SDBBP = 0x0e | OPC_SPECIAL,
};
-/* Multiplication variants of the vr54xx. */
-#define MASK_MUL_VR54XX(op) (MASK_SPECIAL(op) | (op & (0x1F << 6)))
-
-enum {
- OPC_VR54XX_MULS = (0x03 << 6) | OPC_MULT,
- OPC_VR54XX_MULSU = (0x03 << 6) | OPC_MULTU,
- OPC_VR54XX_MACC = (0x05 << 6) | OPC_MULT,
- OPC_VR54XX_MACCU = (0x05 << 6) | OPC_MULTU,
- OPC_VR54XX_MSAC = (0x07 << 6) | OPC_MULT,
- OPC_VR54XX_MSACU = (0x07 << 6) | OPC_MULTU,
- OPC_VR54XX_MULHI = (0x09 << 6) | OPC_MULT,
- OPC_VR54XX_MULHIU = (0x09 << 6) | OPC_MULTU,
- OPC_VR54XX_MULSHI = (0x0B << 6) | OPC_MULT,
- OPC_VR54XX_MULSHIU = (0x0B << 6) | OPC_MULTU,
- OPC_VR54XX_MACCHI = (0x0D << 6) | OPC_MULT,
- OPC_VR54XX_MACCHIU = (0x0D << 6) | OPC_MULTU,
- OPC_VR54XX_MSACHI = (0x0F << 6) | OPC_MULT,
- OPC_VR54XX_MSACHIU = (0x0F << 6) | OPC_MULTU,
-};
-
/* REGIMM (rt field) opcodes */
#define MASK_REGIMM(op) (MASK_OP_MAJOR(op) | (op & (0x1F << 16)))
enum {
MMI_OPC_CLASS_MMI = 0x1C << 26, /* Same as OPC_SPECIAL2 */
- MMI_OPC_LQ = 0x1E << 26, /* Same as OPC_MSA */
MMI_OPC_SQ = 0x1F << 26, /* Same as OPC_SPECIAL3 */
};
#include "exec/gen-icount.h"
-#define gen_helper_0e0i(name, arg) do { \
- TCGv_i32 helper_tmp = tcg_const_i32(arg); \
- gen_helper_##name(cpu_env, helper_tmp); \
- tcg_temp_free_i32(helper_tmp); \
- } while (0)
-
-#define gen_helper_0e1i(name, arg1, arg2) do { \
- TCGv_i32 helper_tmp = tcg_const_i32(arg2); \
- gen_helper_##name(cpu_env, arg1, helper_tmp); \
- tcg_temp_free_i32(helper_tmp); \
- } while (0)
-
-#define gen_helper_1e0i(name, ret, arg1) do { \
- TCGv_i32 helper_tmp = tcg_const_i32(arg1); \
- gen_helper_##name(ret, cpu_env, helper_tmp); \
- tcg_temp_free_i32(helper_tmp); \
- } while (0)
-
-#define gen_helper_1e1i(name, ret, arg1, arg2) do { \
- TCGv_i32 helper_tmp = tcg_const_i32(arg2); \
- gen_helper_##name(ret, cpu_env, arg1, helper_tmp); \
- tcg_temp_free_i32(helper_tmp); \
- } while (0)
-
-#define gen_helper_0e2i(name, arg1, arg2, arg3) do { \
- TCGv_i32 helper_tmp = tcg_const_i32(arg3); \
- gen_helper_##name(cpu_env, arg1, arg2, helper_tmp); \
- tcg_temp_free_i32(helper_tmp); \
- } while (0)
-
-#define gen_helper_1e2i(name, ret, arg1, arg2, arg3) do { \
- TCGv_i32 helper_tmp = tcg_const_i32(arg3); \
- gen_helper_##name(ret, cpu_env, arg1, arg2, helper_tmp); \
- tcg_temp_free_i32(helper_tmp); \
- } while (0)
-
-#define gen_helper_0e3i(name, arg1, arg2, arg3, arg4) do { \
- TCGv_i32 helper_tmp = tcg_const_i32(arg4); \
- gen_helper_##name(cpu_env, arg1, arg2, arg3, helper_tmp); \
- tcg_temp_free_i32(helper_tmp); \
- } while (0)
-
#define DISAS_STOP DISAS_TARGET_0
#define DISAS_EXIT DISAS_TARGET_1
-static const char * const regnames_HI[] = {
+static const char regnames_HI[][4] = {
"HI0", "HI1", "HI2", "HI3",
};
-static const char * const regnames_LO[] = {
+static const char regnames_LO[][4] = {
"LO0", "LO1", "LO2", "LO3",
};
void generate_exception_err(DisasContext *ctx, int excp, int err)
{
- TCGv_i32 texcp = tcg_const_i32(excp);
- TCGv_i32 terr = tcg_const_i32(err);
save_cpu_state(ctx, 1);
- gen_helper_raise_exception_err(cpu_env, texcp, terr);
- tcg_temp_free_i32(terr);
- tcg_temp_free_i32(texcp);
+ gen_helper_raise_exception_err(cpu_env, tcg_constant_i32(excp),
+ tcg_constant_i32(err));
ctx->base.is_jmp = DISAS_NORETURN;
}
void generate_exception(DisasContext *ctx, int excp)
{
- gen_helper_0e0i(raise_exception, excp);
+ gen_helper_raise_exception(cpu_env, tcg_constant_i32(excp));
}
void generate_exception_end(DisasContext *ctx, int excp)
static inline void op_ld_##insn(TCGv ret, TCGv arg1, int mem_idx, \
DisasContext *ctx) \
{ \
- gen_helper_1e1i(insn, ret, arg1, mem_idx); \
+ gen_helper_##insn(ret, cpu_env, arg1, tcg_constant_i32(mem_idx)); \
}
#endif
OP_LD_ATOMIC(ll, ld32s);
*/
tcg_gen_qemu_ld_tl(t1, t0, mem_idx, MO_UB);
tcg_gen_andi_tl(t1, t0, 7);
-#ifndef TARGET_WORDS_BIGENDIAN
- tcg_gen_xori_tl(t1, t1, 7);
-#endif
+ if (!cpu_is_bigendian(ctx)) {
+ tcg_gen_xori_tl(t1, t1, 7);
+ }
tcg_gen_shli_tl(t1, t1, 3);
tcg_gen_andi_tl(t0, t0, ~7);
tcg_gen_qemu_ld_tl(t0, t0, mem_idx, MO_TEQ);
*/
tcg_gen_qemu_ld_tl(t1, t0, mem_idx, MO_UB);
tcg_gen_andi_tl(t1, t0, 7);
-#ifdef TARGET_WORDS_BIGENDIAN
- tcg_gen_xori_tl(t1, t1, 7);
-#endif
+ if (cpu_is_bigendian(ctx)) {
+ tcg_gen_xori_tl(t1, t1, 7);
+ }
tcg_gen_shli_tl(t1, t1, 3);
tcg_gen_andi_tl(t0, t0, ~7);
tcg_gen_qemu_ld_tl(t0, t0, mem_idx, MO_TEQ);
*/
tcg_gen_qemu_ld_tl(t1, t0, mem_idx, MO_UB);
tcg_gen_andi_tl(t1, t0, 3);
-#ifndef TARGET_WORDS_BIGENDIAN
- tcg_gen_xori_tl(t1, t1, 3);
-#endif
+ if (!cpu_is_bigendian(ctx)) {
+ tcg_gen_xori_tl(t1, t1, 3);
+ }
tcg_gen_shli_tl(t1, t1, 3);
tcg_gen_andi_tl(t0, t0, ~3);
tcg_gen_qemu_ld_tl(t0, t0, mem_idx, MO_TEUL);
*/
tcg_gen_qemu_ld_tl(t1, t0, mem_idx, MO_UB);
tcg_gen_andi_tl(t1, t0, 3);
-#ifdef TARGET_WORDS_BIGENDIAN
- tcg_gen_xori_tl(t1, t1, 3);
-#endif
+ if (cpu_is_bigendian(ctx)) {
+ tcg_gen_xori_tl(t1, t1, 3);
+ }
tcg_gen_shli_tl(t1, t1, 3);
tcg_gen_andi_tl(t0, t0, ~3);
tcg_gen_qemu_ld_tl(t0, t0, mem_idx, MO_TEUL);
tcg_temp_free(t0);
}
-static void gen_llwp(DisasContext *ctx, uint32_t base, int16_t offset,
- uint32_t reg1, uint32_t reg2)
-{
- TCGv taddr = tcg_temp_new();
- TCGv_i64 tval = tcg_temp_new_i64();
- TCGv tmp1 = tcg_temp_new();
- TCGv tmp2 = tcg_temp_new();
-
- gen_base_offset_addr(ctx, taddr, base, offset);
- tcg_gen_qemu_ld64(tval, taddr, ctx->mem_idx);
-#ifdef TARGET_WORDS_BIGENDIAN
- tcg_gen_extr_i64_tl(tmp2, tmp1, tval);
-#else
- tcg_gen_extr_i64_tl(tmp1, tmp2, tval);
-#endif
- gen_store_gpr(tmp1, reg1);
- tcg_temp_free(tmp1);
- gen_store_gpr(tmp2, reg2);
- tcg_temp_free(tmp2);
- tcg_gen_st_i64(tval, cpu_env, offsetof(CPUMIPSState, llval_wp));
- tcg_temp_free_i64(tval);
- tcg_gen_st_tl(taddr, cpu_env, offsetof(CPUMIPSState, lladdr));
- tcg_temp_free(taddr);
-}
-
/* Store */
static void gen_st(DisasContext *ctx, uint32_t opc, int rt,
int base, int offset)
tcg_temp_free(t0);
}
-
-static void gen_scwp(DisasContext *ctx, uint32_t base, int16_t offset,
- uint32_t reg1, uint32_t reg2, bool eva)
-{
- TCGv taddr = tcg_temp_local_new();
- TCGv lladdr = tcg_temp_local_new();
- TCGv_i64 tval = tcg_temp_new_i64();
- TCGv_i64 llval = tcg_temp_new_i64();
- TCGv_i64 val = tcg_temp_new_i64();
- TCGv tmp1 = tcg_temp_new();
- TCGv tmp2 = tcg_temp_new();
- TCGLabel *lab_fail = gen_new_label();
- TCGLabel *lab_done = gen_new_label();
-
- gen_base_offset_addr(ctx, taddr, base, offset);
-
- tcg_gen_ld_tl(lladdr, cpu_env, offsetof(CPUMIPSState, lladdr));
- tcg_gen_brcond_tl(TCG_COND_NE, taddr, lladdr, lab_fail);
-
- gen_load_gpr(tmp1, reg1);
- gen_load_gpr(tmp2, reg2);
-
-#ifdef TARGET_WORDS_BIGENDIAN
- tcg_gen_concat_tl_i64(tval, tmp2, tmp1);
-#else
- tcg_gen_concat_tl_i64(tval, tmp1, tmp2);
-#endif
-
- tcg_gen_ld_i64(llval, cpu_env, offsetof(CPUMIPSState, llval_wp));
- tcg_gen_atomic_cmpxchg_i64(val, taddr, llval, tval,
- eva ? MIPS_HFLAG_UM : ctx->mem_idx, MO_64);
- if (reg1 != 0) {
- tcg_gen_movi_tl(cpu_gpr[reg1], 1);
- }
- tcg_gen_brcond_i64(TCG_COND_EQ, val, llval, lab_done);
-
- gen_set_label(lab_fail);
-
- if (reg1 != 0) {
- tcg_gen_movi_tl(cpu_gpr[reg1], 0);
- }
- gen_set_label(lab_done);
- tcg_gen_movi_tl(lladdr, -1);
- tcg_gen_st_tl(lladdr, cpu_env, offsetof(CPUMIPSState, lladdr));
-}
-
/* Load and store */
static void gen_flt_ldst(DisasContext *ctx, uint32_t opc, int ft,
TCGv t0)
tcg_temp_free(t1);
}
-static void gen_mul_vr54xx(DisasContext *ctx, uint32_t opc,
- int rd, int rs, int rt)
-{
- TCGv t0 = tcg_temp_new();
- TCGv t1 = tcg_temp_new();
-
- gen_load_gpr(t0, rs);
- gen_load_gpr(t1, rt);
-
- switch (opc) {
- case OPC_VR54XX_MULS:
- gen_helper_muls(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MULSU:
- gen_helper_mulsu(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MACC:
- gen_helper_macc(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MACCU:
- gen_helper_maccu(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MSAC:
- gen_helper_msac(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MSACU:
- gen_helper_msacu(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MULHI:
- gen_helper_mulhi(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MULHIU:
- gen_helper_mulhiu(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MULSHI:
- gen_helper_mulshi(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MULSHIU:
- gen_helper_mulshiu(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MACCHI:
- gen_helper_macchi(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MACCHIU:
- gen_helper_macchiu(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MSACHI:
- gen_helper_msachi(t0, cpu_env, t0, t1);
- break;
- case OPC_VR54XX_MSACHIU:
- gen_helper_msachiu(t0, cpu_env, t0, t1);
- break;
- default:
- MIPS_INVAL("mul vr54xx");
- gen_reserved_instruction(ctx);
- goto out;
- }
- gen_store_gpr(t0, rd);
-
- out:
- tcg_temp_free(t0);
- tcg_temp_free(t1);
-}
-
static void gen_cl(DisasContext *ctx, uint32_t opc,
int rd, int rs)
{
t1 = tcg_temp_new();
tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_UB);
tcg_gen_andi_tl(t1, t0, 3);
-#ifndef TARGET_WORDS_BIGENDIAN
- tcg_gen_xori_tl(t1, t1, 3);
-#endif
+ if (!cpu_is_bigendian(ctx)) {
+ tcg_gen_xori_tl(t1, t1, 3);
+ }
tcg_gen_shli_tl(t1, t1, 3);
tcg_gen_andi_tl(t0, t0, ~3);
tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TEUL);
t1 = tcg_temp_new();
tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_UB);
tcg_gen_andi_tl(t1, t0, 3);
-#ifdef TARGET_WORDS_BIGENDIAN
- tcg_gen_xori_tl(t1, t1, 3);
-#endif
+ if (cpu_is_bigendian(ctx)) {
+ tcg_gen_xori_tl(t1, t1, 3);
+ }
tcg_gen_shli_tl(t1, t1, 3);
tcg_gen_andi_tl(t0, t0, ~3);
tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TEUL);
t1 = tcg_temp_new();
tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_UB);
tcg_gen_andi_tl(t1, t0, 7);
-#ifndef TARGET_WORDS_BIGENDIAN
- tcg_gen_xori_tl(t1, t1, 7);
-#endif
+ if (!cpu_is_bigendian(ctx)) {
+ tcg_gen_xori_tl(t1, t1, 7);
+ }
tcg_gen_shli_tl(t1, t1, 3);
tcg_gen_andi_tl(t0, t0, ~7);
tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TEQ);
t1 = tcg_temp_new();
tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_UB);
tcg_gen_andi_tl(t1, t0, 7);
-#ifdef TARGET_WORDS_BIGENDIAN
- tcg_gen_xori_tl(t1, t1, 7);
-#endif
+ if (cpu_is_bigendian(ctx)) {
+ tcg_gen_xori_tl(t1, t1, 7);
+ }
tcg_gen_shli_tl(t1, t1, 3);
tcg_gen_andi_tl(t0, t0, ~7);
tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TEQ);
break;
#endif
case OPC_GSLWXC1:
- check_cp1_enabled(ctx);
gen_base_offset_addr(ctx, t0, rs, offset);
if (rd) {
gen_op_addr_add(ctx, t0, cpu_gpr[rd], t0);
break;
#if defined(TARGET_MIPS64)
case OPC_GSLDXC1:
- check_cp1_enabled(ctx);
gen_base_offset_addr(ctx, t0, rs, offset);
if (rd) {
gen_op_addr_add(ctx, t0, cpu_gpr[rd], t0);
tcg_temp_free(t1);
}
-static inline bool use_goto_tb(DisasContext *ctx, target_ulong dest)
-{
- if (unlikely(ctx->base.singlestep_enabled)) {
- return false;
- }
-
-#ifndef CONFIG_USER_ONLY
- return (ctx->base.tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK);
-#else
- return true;
-#endif
-}
-
-static inline void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest)
+static void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest)
{
- if (use_goto_tb(ctx, dest)) {
+ if (translator_use_goto_tb(&ctx->base, dest)) {
tcg_gen_goto_tb(n);
gen_save_pc(dest);
tcg_gen_exit_tb(ctx->base.tb, n);
} else {
gen_save_pc(dest);
- if (ctx->base.singlestep_enabled) {
- save_cpu_state(ctx, 0);
- gen_helper_raise_exception_debug(cpu_env);
- }
tcg_gen_lookup_and_goto_ptr();
}
}
}
-/* nanoMIPS Branches */
-static void gen_compute_branch_nm(DisasContext *ctx, uint32_t opc,
- int insn_bytes,
- int rs, int rt, int32_t offset)
-{
- target_ulong btgt = -1;
- int bcond_compute = 0;
- TCGv t0 = tcg_temp_new();
- TCGv t1 = tcg_temp_new();
-
- /* Load needed operands */
- switch (opc) {
- case OPC_BEQ:
- case OPC_BNE:
- /* Compare two registers */
- if (rs != rt) {
- gen_load_gpr(t0, rs);
- gen_load_gpr(t1, rt);
- bcond_compute = 1;
- }
- btgt = ctx->base.pc_next + insn_bytes + offset;
- break;
- case OPC_BGEZAL:
- /* Compare to zero */
- if (rs != 0) {
- gen_load_gpr(t0, rs);
- bcond_compute = 1;
- }
- btgt = ctx->base.pc_next + insn_bytes + offset;
- break;
- case OPC_BPOSGE32:
- tcg_gen_andi_tl(t0, cpu_dspctrl, 0x3F);
- bcond_compute = 1;
- btgt = ctx->base.pc_next + insn_bytes + offset;
- break;
- case OPC_JR:
- case OPC_JALR:
- /* Jump to register */
- if (offset != 0 && offset != 16) {
- /*
- * Hint = 0 is JR/JALR, hint 16 is JR.HB/JALR.HB, the
- * others are reserved.
- */
- MIPS_INVAL("jump hint");
- gen_reserved_instruction(ctx);
- goto out;
- }
- gen_load_gpr(btarget, rs);
- break;
- default:
- MIPS_INVAL("branch/jump");
- gen_reserved_instruction(ctx);
- goto out;
- }
- if (bcond_compute == 0) {
- /* No condition to be computed */
- switch (opc) {
- case OPC_BEQ: /* rx == rx */
- /* Always take */
- ctx->hflags |= MIPS_HFLAG_B;
- break;
- case OPC_BGEZAL: /* 0 >= 0 */
- /* Always take and link */
- tcg_gen_movi_tl(cpu_gpr[31],
- ctx->base.pc_next + insn_bytes);
- ctx->hflags |= MIPS_HFLAG_B;
- break;
- case OPC_BNE: /* rx != rx */
- tcg_gen_movi_tl(cpu_gpr[31], ctx->base.pc_next + 8);
- /* Skip the instruction in the delay slot */
- ctx->base.pc_next += 4;
- goto out;
- case OPC_JR:
- ctx->hflags |= MIPS_HFLAG_BR;
- break;
- case OPC_JALR:
- if (rt > 0) {
- tcg_gen_movi_tl(cpu_gpr[rt],
- ctx->base.pc_next + insn_bytes);
- }
- ctx->hflags |= MIPS_HFLAG_BR;
- break;
- default:
- MIPS_INVAL("branch/jump");
- gen_reserved_instruction(ctx);
- goto out;
- }
- } else {
- switch (opc) {
- case OPC_BEQ:
- tcg_gen_setcond_tl(TCG_COND_EQ, bcond, t0, t1);
- goto not_likely;
- case OPC_BNE:
- tcg_gen_setcond_tl(TCG_COND_NE, bcond, t0, t1);
- goto not_likely;
- case OPC_BGEZAL:
- tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 0);
- tcg_gen_movi_tl(cpu_gpr[31],
- ctx->base.pc_next + insn_bytes);
- goto not_likely;
- case OPC_BPOSGE32:
- tcg_gen_setcondi_tl(TCG_COND_GE, bcond, t0, 32);
- not_likely:
- ctx->hflags |= MIPS_HFLAG_BC;
- break;
- default:
- MIPS_INVAL("conditional branch/jump");
- gen_reserved_instruction(ctx);
- goto out;
- }
- }
-
- ctx->btarget = btgt;
-
- out:
- if (insn_bytes == 2) {
- ctx->hflags |= MIPS_HFLAG_B16;
- }
- tcg_temp_free(t0);
- tcg_temp_free(t1);
-}
-
-
/* special3 bitfield operations */
static void gen_bitops(DisasContext *ctx, uint32_t opc, int rt,
int rs, int lsb, int msb)
tcg_temp_free(t0);
}
-static void gen_align(DisasContext *ctx, int wordsz, int rd, int rs, int rt,
- int bp)
+void gen_align(DisasContext *ctx, int wordsz, int rd, int rs, int rt, int bp)
{
gen_align_bits(ctx, wordsz, rd, rs, rt, bp * 8);
}
-static void gen_ext(DisasContext *ctx, int wordsz, int rd, int rs, int rt,
- int shift)
-{
- gen_align_bits(ctx, wordsz, rd, rs, rt, wordsz - shift);
-}
-
static void gen_bitswap(DisasContext *ctx, int opc, int rd, int rt)
{
TCGv t0;
break;
case 3:
/* XXX: For now we support only a single FPU context. */
- {
- TCGv_i32 fs_tmp = tcg_const_i32(rd);
-
- gen_helper_0e2i(ctc1, t0, fs_tmp, rt);
- tcg_temp_free_i32(fs_tmp);
- }
+ gen_helper_0e2i(ctc1, t0, tcg_constant_i32(rd), rt);
/* Stop translation as we may have changed hflags */
ctx->base.is_jmp = DISAS_STOP;
break;
case OPC_CTC1:
gen_load_gpr(t0, rt);
save_cpu_state(ctx, 0);
- {
- TCGv_i32 fs_tmp = tcg_const_i32(fs);
-
- gen_helper_0e2i(ctc1, t0, fs_tmp, rt);
- tcg_temp_free_i32(fs_tmp);
- }
+ gen_helper_0e2i(ctc1, t0, tcg_constant_i32(fs), rt);
/* Stop translation as we may have changed hflags */
ctx->base.is_jmp = DISAS_STOP;
break;
gen_set_label(l1);
tcg_gen_brcondi_tl(TCG_COND_NE, t0, 4, l2);
tcg_temp_free(t0);
-#ifdef TARGET_WORDS_BIGENDIAN
- gen_load_fpr32(ctx, fp, fs);
- gen_load_fpr32h(ctx, fph, ft);
- gen_store_fpr32h(ctx, fp, fd);
- gen_store_fpr32(ctx, fph, fd);
-#else
- gen_load_fpr32h(ctx, fph, fs);
- gen_load_fpr32(ctx, fp, ft);
- gen_store_fpr32(ctx, fph, fd);
- gen_store_fpr32h(ctx, fp, fd);
-#endif
+ if (cpu_is_bigendian(ctx)) {
+ gen_load_fpr32(ctx, fp, fs);
+ gen_load_fpr32h(ctx, fph, ft);
+ gen_store_fpr32h(ctx, fp, fd);
+ gen_store_fpr32(ctx, fph, fd);
+ } else {
+ gen_load_fpr32h(ctx, fph, fs);
+ gen_load_fpr32(ctx, fp, ft);
+ gen_store_fpr32(ctx, fph, fd);
+ gen_store_fpr32h(ctx, fp, fd);
+ }
gen_set_label(l2);
tcg_temp_free_i32(fp);
tcg_temp_free_i32(fph);
} else {
tcg_gen_mov_tl(cpu_PC, btarget);
}
- if (ctx->base.singlestep_enabled) {
- save_cpu_state(ctx, 0);
- gen_helper_raise_exception_debug(cpu_env);
- }
tcg_gen_lookup_and_goto_ptr();
break;
default:
} else {
/* OPC_JIC, OPC_JIALC */
TCGv tbase = tcg_temp_new();
- TCGv toffset = tcg_temp_new();
+ TCGv toffset = tcg_constant_tl(offset);
gen_load_gpr(tbase, rt);
- tcg_gen_movi_tl(toffset, offset);
gen_op_addr_add(ctx, btarget, tbase, toffset);
tcg_temp_free(tbase);
- tcg_temp_free(toffset);
}
break;
default:
tcg_temp_free(t1);
}
-/* ISA extensions (ASEs) */
-/* MIPS16 extension to MIPS32 */
+void gen_addiupc(DisasContext *ctx, int rx, int imm,
+ int is_64_bit, int extended)
+{
+ TCGv t0;
-/* MIPS16 major opcodes */
-enum {
- M16_OPC_ADDIUSP = 0x00,
- M16_OPC_ADDIUPC = 0x01,
- M16_OPC_B = 0x02,
- M16_OPC_JAL = 0x03,
- M16_OPC_BEQZ = 0x04,
- M16_OPC_BNEQZ = 0x05,
- M16_OPC_SHIFT = 0x06,
- M16_OPC_LD = 0x07,
- M16_OPC_RRIA = 0x08,
- M16_OPC_ADDIU8 = 0x09,
- M16_OPC_SLTI = 0x0a,
- M16_OPC_SLTIU = 0x0b,
- M16_OPC_I8 = 0x0c,
- M16_OPC_LI = 0x0d,
- M16_OPC_CMPI = 0x0e,
- M16_OPC_SD = 0x0f,
- M16_OPC_LB = 0x10,
- M16_OPC_LH = 0x11,
- M16_OPC_LWSP = 0x12,
- M16_OPC_LW = 0x13,
- M16_OPC_LBU = 0x14,
- M16_OPC_LHU = 0x15,
- M16_OPC_LWPC = 0x16,
- M16_OPC_LWU = 0x17,
- M16_OPC_SB = 0x18,
- M16_OPC_SH = 0x19,
- M16_OPC_SWSP = 0x1a,
- M16_OPC_SW = 0x1b,
- M16_OPC_RRR = 0x1c,
- M16_OPC_RR = 0x1d,
- M16_OPC_EXTEND = 0x1e,
- M16_OPC_I64 = 0x1f
-};
+ if (extended && (ctx->hflags & MIPS_HFLAG_BMASK)) {
+ gen_reserved_instruction(ctx);
+ return;
+ }
-/* I8 funct field */
-enum {
- I8_BTEQZ = 0x0,
- I8_BTNEZ = 0x1,
- I8_SWRASP = 0x2,
- I8_ADJSP = 0x3,
- I8_SVRS = 0x4,
- I8_MOV32R = 0x5,
- I8_MOVR32 = 0x7
-};
+ t0 = tcg_temp_new();
-/* RRR f field */
-enum {
- RRR_DADDU = 0x0,
- RRR_ADDU = 0x1,
- RRR_DSUBU = 0x2,
- RRR_SUBU = 0x3
-};
+ tcg_gen_movi_tl(t0, pc_relative_pc(ctx));
+ tcg_gen_addi_tl(cpu_gpr[rx], t0, imm);
+ if (!is_64_bit) {
+ tcg_gen_ext32s_tl(cpu_gpr[rx], cpu_gpr[rx]);
+ }
-/* RR funct field */
-enum {
- RR_JR = 0x00,
- RR_SDBBP = 0x01,
- RR_SLT = 0x02,
- RR_SLTU = 0x03,
- RR_SLLV = 0x04,
- RR_BREAK = 0x05,
- RR_SRLV = 0x06,
- RR_SRAV = 0x07,
- RR_DSRL = 0x08,
- RR_CMP = 0x0a,
- RR_NEG = 0x0b,
- RR_AND = 0x0c,
- RR_OR = 0x0d,
- RR_XOR = 0x0e,
- RR_NOT = 0x0f,
- RR_MFHI = 0x10,
- RR_CNVT = 0x11,
- RR_MFLO = 0x12,
- RR_DSRA = 0x13,
- RR_DSLLV = 0x14,
- RR_DSRLV = 0x16,
- RR_DSRAV = 0x17,
- RR_MULT = 0x18,
- RR_MULTU = 0x19,
- RR_DIV = 0x1a,
- RR_DIVU = 0x1b,
- RR_DMULT = 0x1c,
- RR_DMULTU = 0x1d,
- RR_DDIV = 0x1e,
- RR_DDIVU = 0x1f
-};
-
-/* I64 funct field */
-enum {
- I64_LDSP = 0x0,
- I64_SDSP = 0x1,
- I64_SDRASP = 0x2,
- I64_DADJSP = 0x3,
- I64_LDPC = 0x4,
- I64_DADDIU5 = 0x5,
- I64_DADDIUPC = 0x6,
- I64_DADDIUSP = 0x7
-};
-
-/* RR ry field for CNVT */
-enum {
- RR_RY_CNVT_ZEB = 0x0,
- RR_RY_CNVT_ZEH = 0x1,
- RR_RY_CNVT_ZEW = 0x2,
- RR_RY_CNVT_SEB = 0x4,
- RR_RY_CNVT_SEH = 0x5,
- RR_RY_CNVT_SEW = 0x6,
-};
-
-static int xlat(int r)
-{
- static int map[] = { 16, 17, 2, 3, 4, 5, 6, 7 };
-
- return map[r];
-}
-
-static void gen_mips16_save(DisasContext *ctx,
- int xsregs, int aregs,
- int do_ra, int do_s0, int do_s1,
- int framesize)
-{
- TCGv t0 = tcg_temp_new();
- TCGv t1 = tcg_temp_new();
- TCGv t2 = tcg_temp_new();
- int args, astatic;
-
- switch (aregs) {
- case 0:
- case 1:
- case 2:
- case 3:
- case 11:
- args = 0;
- break;
- case 4:
- case 5:
- case 6:
- case 7:
- args = 1;
- break;
- case 8:
- case 9:
- case 10:
- args = 2;
- break;
- case 12:
- case 13:
- args = 3;
- break;
- case 14:
- args = 4;
- break;
- default:
- gen_reserved_instruction(ctx);
- return;
- }
-
- switch (args) {
- case 4:
- gen_base_offset_addr(ctx, t0, 29, 12);
- gen_load_gpr(t1, 7);
- tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUL);
- /* Fall through */
- case 3:
- gen_base_offset_addr(ctx, t0, 29, 8);
- gen_load_gpr(t1, 6);
- tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUL);
- /* Fall through */
- case 2:
- gen_base_offset_addr(ctx, t0, 29, 4);
- gen_load_gpr(t1, 5);
- tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUL);
- /* Fall through */
- case 1:
- gen_base_offset_addr(ctx, t0, 29, 0);
- gen_load_gpr(t1, 4);
- tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUL);
- }
-
- gen_load_gpr(t0, 29);
-
-#define DECR_AND_STORE(reg) do { \
- tcg_gen_movi_tl(t2, -4); \
- gen_op_addr_add(ctx, t0, t0, t2); \
- gen_load_gpr(t1, reg); \
- tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUL); \
- } while (0)
-
- if (do_ra) {
- DECR_AND_STORE(31);
- }
-
- switch (xsregs) {
- case 7:
- DECR_AND_STORE(30);
- /* Fall through */
- case 6:
- DECR_AND_STORE(23);
- /* Fall through */
- case 5:
- DECR_AND_STORE(22);
- /* Fall through */
- case 4:
- DECR_AND_STORE(21);
- /* Fall through */
- case 3:
- DECR_AND_STORE(20);
- /* Fall through */
- case 2:
- DECR_AND_STORE(19);
- /* Fall through */
- case 1:
- DECR_AND_STORE(18);
- }
-
- if (do_s1) {
- DECR_AND_STORE(17);
- }
- if (do_s0) {
- DECR_AND_STORE(16);
- }
-
- switch (aregs) {
- case 0:
- case 4:
- case 8:
- case 12:
- case 14:
- astatic = 0;
- break;
- case 1:
- case 5:
- case 9:
- case 13:
- astatic = 1;
- break;
- case 2:
- case 6:
- case 10:
- astatic = 2;
- break;
- case 3:
- case 7:
- astatic = 3;
- break;
- case 11:
- astatic = 4;
- break;
- default:
- gen_reserved_instruction(ctx);
- return;
- }
-
- if (astatic > 0) {
- DECR_AND_STORE(7);
- if (astatic > 1) {
- DECR_AND_STORE(6);
- if (astatic > 2) {
- DECR_AND_STORE(5);
- if (astatic > 3) {
- DECR_AND_STORE(4);
- }
- }
- }
- }
-#undef DECR_AND_STORE
-
- tcg_gen_movi_tl(t2, -framesize);
- gen_op_addr_add(ctx, cpu_gpr[29], cpu_gpr[29], t2);
- tcg_temp_free(t0);
- tcg_temp_free(t1);
- tcg_temp_free(t2);
-}
-
-static void gen_mips16_restore(DisasContext *ctx,
- int xsregs, int aregs,
- int do_ra, int do_s0, int do_s1,
- int framesize)
-{
- int astatic;
- TCGv t0 = tcg_temp_new();
- TCGv t1 = tcg_temp_new();
- TCGv t2 = tcg_temp_new();
-
- tcg_gen_movi_tl(t2, framesize);
- gen_op_addr_add(ctx, t0, cpu_gpr[29], t2);
-
-#define DECR_AND_LOAD(reg) do { \
- tcg_gen_movi_tl(t2, -4); \
- gen_op_addr_add(ctx, t0, t0, t2); \
- tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_TESL); \
- gen_store_gpr(t1, reg); \
- } while (0)
-
- if (do_ra) {
- DECR_AND_LOAD(31);
- }
-
- switch (xsregs) {
- case 7:
- DECR_AND_LOAD(30);
- /* Fall through */
- case 6:
- DECR_AND_LOAD(23);
- /* Fall through */
- case 5:
- DECR_AND_LOAD(22);
- /* Fall through */
- case 4:
- DECR_AND_LOAD(21);
- /* Fall through */
- case 3:
- DECR_AND_LOAD(20);
- /* Fall through */
- case 2:
- DECR_AND_LOAD(19);
- /* Fall through */
- case 1:
- DECR_AND_LOAD(18);
- }
-
- if (do_s1) {
- DECR_AND_LOAD(17);
- }
- if (do_s0) {
- DECR_AND_LOAD(16);
- }
-
- switch (aregs) {
- case 0:
- case 4:
- case 8:
- case 12:
- case 14:
- astatic = 0;
- break;
- case 1:
- case 5:
- case 9:
- case 13:
- astatic = 1;
- break;
- case 2:
- case 6:
- case 10:
- astatic = 2;
- break;
- case 3:
- case 7:
- astatic = 3;
- break;
- case 11:
- astatic = 4;
- break;
- default:
- gen_reserved_instruction(ctx);
- return;
- }
-
- if (astatic > 0) {
- DECR_AND_LOAD(7);
- if (astatic > 1) {
- DECR_AND_LOAD(6);
- if (astatic > 2) {
- DECR_AND_LOAD(5);
- if (astatic > 3) {
- DECR_AND_LOAD(4);
- }
- }
- }
- }
-#undef DECR_AND_LOAD
-
- tcg_gen_movi_tl(t2, framesize);
- gen_op_addr_add(ctx, cpu_gpr[29], cpu_gpr[29], t2);
- tcg_temp_free(t0);
- tcg_temp_free(t1);
- tcg_temp_free(t2);
-}
-
-static void gen_addiupc(DisasContext *ctx, int rx, int imm,
- int is_64_bit, int extended)
-{
- TCGv t0;
-
- if (extended && (ctx->hflags & MIPS_HFLAG_BMASK)) {
- gen_reserved_instruction(ctx);
- return;
- }
-
- t0 = tcg_temp_new();
-
- tcg_gen_movi_tl(t0, pc_relative_pc(ctx));
- tcg_gen_addi_tl(cpu_gpr[rx], t0, imm);
- if (!is_64_bit) {
- tcg_gen_ext32s_tl(cpu_gpr[rx], cpu_gpr[rx]);
- }
-
- tcg_temp_free(t0);
-}
+ tcg_temp_free(t0);
+}
static void gen_cache_operation(DisasContext *ctx, uint32_t op, int base,
int16_t offset)
gen_helper_cache(cpu_env, t1, t0);
tcg_temp_free(t1);
tcg_temp_free_i32(t0);
-}
-
-#if defined(TARGET_MIPS64)
-static void decode_i64_mips16(DisasContext *ctx,
- int ry, int funct, int16_t offset,
- int extended)
-{
- switch (funct) {
- case I64_LDSP:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- offset = extended ? offset : offset << 3;
- gen_ld(ctx, OPC_LD, ry, 29, offset);
- break;
- case I64_SDSP:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- offset = extended ? offset : offset << 3;
- gen_st(ctx, OPC_SD, ry, 29, offset);
- break;
- case I64_SDRASP:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- offset = extended ? offset : (ctx->opcode & 0xff) << 3;
- gen_st(ctx, OPC_SD, 31, 29, offset);
- break;
- case I64_DADJSP:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- offset = extended ? offset : ((int8_t)ctx->opcode) << 3;
- gen_arith_imm(ctx, OPC_DADDIU, 29, 29, offset);
- break;
- case I64_LDPC:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- if (extended && (ctx->hflags & MIPS_HFLAG_BMASK)) {
- gen_reserved_instruction(ctx);
- } else {
- offset = extended ? offset : offset << 3;
- gen_ld(ctx, OPC_LDPC, ry, 0, offset);
- }
- break;
- case I64_DADDIU5:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- offset = extended ? offset : ((int8_t)(offset << 3)) >> 3;
- gen_arith_imm(ctx, OPC_DADDIU, ry, ry, offset);
- break;
- case I64_DADDIUPC:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- offset = extended ? offset : offset << 2;
- gen_addiupc(ctx, ry, offset, 1, extended);
- break;
- case I64_DADDIUSP:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- offset = extended ? offset : offset << 2;
- gen_arith_imm(ctx, OPC_DADDIU, ry, 29, offset);
- break;
- }
-}
-#endif
-
-static int decode_extended_mips16_opc(CPUMIPSState *env, DisasContext *ctx)
-{
- int extend = translator_lduw(env, ctx->base.pc_next + 2);
- int op, rx, ry, funct, sa;
- int16_t imm, offset;
-
- ctx->opcode = (ctx->opcode << 16) | extend;
- op = (ctx->opcode >> 11) & 0x1f;
- sa = (ctx->opcode >> 22) & 0x1f;
- funct = (ctx->opcode >> 8) & 0x7;
- rx = xlat((ctx->opcode >> 8) & 0x7);
- ry = xlat((ctx->opcode >> 5) & 0x7);
- offset = imm = (int16_t) (((ctx->opcode >> 16) & 0x1f) << 11
- | ((ctx->opcode >> 21) & 0x3f) << 5
- | (ctx->opcode & 0x1f));
-
- /*
- * The extended opcodes cleverly reuse the opcodes from their 16-bit
- * counterparts.
- */
- switch (op) {
- case M16_OPC_ADDIUSP:
- gen_arith_imm(ctx, OPC_ADDIU, rx, 29, imm);
- break;
- case M16_OPC_ADDIUPC:
- gen_addiupc(ctx, rx, imm, 0, 1);
- break;
- case M16_OPC_B:
- gen_compute_branch(ctx, OPC_BEQ, 4, 0, 0, offset << 1, 0);
- /* No delay slot, so just process as a normal instruction */
- break;
- case M16_OPC_BEQZ:
- gen_compute_branch(ctx, OPC_BEQ, 4, rx, 0, offset << 1, 0);
- /* No delay slot, so just process as a normal instruction */
- break;
- case M16_OPC_BNEQZ:
- gen_compute_branch(ctx, OPC_BNE, 4, rx, 0, offset << 1, 0);
- /* No delay slot, so just process as a normal instruction */
- break;
- case M16_OPC_SHIFT:
- switch (ctx->opcode & 0x3) {
- case 0x0:
- gen_shift_imm(ctx, OPC_SLL, rx, ry, sa);
- break;
- case 0x1:
-#if defined(TARGET_MIPS64)
- check_mips_64(ctx);
- gen_shift_imm(ctx, OPC_DSLL, rx, ry, sa);
-#else
- gen_reserved_instruction(ctx);
-#endif
- break;
- case 0x2:
- gen_shift_imm(ctx, OPC_SRL, rx, ry, sa);
- break;
- case 0x3:
- gen_shift_imm(ctx, OPC_SRA, rx, ry, sa);
- break;
- }
- break;
-#if defined(TARGET_MIPS64)
- case M16_OPC_LD:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_ld(ctx, OPC_LD, ry, rx, offset);
- break;
-#endif
- case M16_OPC_RRIA:
- imm = ctx->opcode & 0xf;
- imm = imm | ((ctx->opcode >> 20) & 0x7f) << 4;
- imm = imm | ((ctx->opcode >> 16) & 0xf) << 11;
- imm = (int16_t) (imm << 1) >> 1;
- if ((ctx->opcode >> 4) & 0x1) {
-#if defined(TARGET_MIPS64)
- check_mips_64(ctx);
- gen_arith_imm(ctx, OPC_DADDIU, ry, rx, imm);
-#else
- gen_reserved_instruction(ctx);
-#endif
- } else {
- gen_arith_imm(ctx, OPC_ADDIU, ry, rx, imm);
- }
- break;
- case M16_OPC_ADDIU8:
- gen_arith_imm(ctx, OPC_ADDIU, rx, rx, imm);
- break;
- case M16_OPC_SLTI:
- gen_slt_imm(ctx, OPC_SLTI, 24, rx, imm);
- break;
- case M16_OPC_SLTIU:
- gen_slt_imm(ctx, OPC_SLTIU, 24, rx, imm);
- break;
- case M16_OPC_I8:
- switch (funct) {
- case I8_BTEQZ:
- gen_compute_branch(ctx, OPC_BEQ, 4, 24, 0, offset << 1, 0);
- break;
- case I8_BTNEZ:
- gen_compute_branch(ctx, OPC_BNE, 4, 24, 0, offset << 1, 0);
- break;
- case I8_SWRASP:
- gen_st(ctx, OPC_SW, 31, 29, imm);
- break;
- case I8_ADJSP:
- gen_arith_imm(ctx, OPC_ADDIU, 29, 29, imm);
- break;
- case I8_SVRS:
- check_insn(ctx, ISA_MIPS_R1);
- {
- int xsregs = (ctx->opcode >> 24) & 0x7;
- int aregs = (ctx->opcode >> 16) & 0xf;
- int do_ra = (ctx->opcode >> 6) & 0x1;
- int do_s0 = (ctx->opcode >> 5) & 0x1;
- int do_s1 = (ctx->opcode >> 4) & 0x1;
- int framesize = (((ctx->opcode >> 20) & 0xf) << 4
- | (ctx->opcode & 0xf)) << 3;
-
- if (ctx->opcode & (1 << 7)) {
- gen_mips16_save(ctx, xsregs, aregs,
- do_ra, do_s0, do_s1,
- framesize);
- } else {
- gen_mips16_restore(ctx, xsregs, aregs,
- do_ra, do_s0, do_s1,
- framesize);
- }
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case M16_OPC_LI:
- tcg_gen_movi_tl(cpu_gpr[rx], (uint16_t) imm);
- break;
- case M16_OPC_CMPI:
- tcg_gen_xori_tl(cpu_gpr[24], cpu_gpr[rx], (uint16_t) imm);
- break;
-#if defined(TARGET_MIPS64)
- case M16_OPC_SD:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_st(ctx, OPC_SD, ry, rx, offset);
- break;
-#endif
- case M16_OPC_LB:
- gen_ld(ctx, OPC_LB, ry, rx, offset);
- break;
- case M16_OPC_LH:
- gen_ld(ctx, OPC_LH, ry, rx, offset);
- break;
- case M16_OPC_LWSP:
- gen_ld(ctx, OPC_LW, rx, 29, offset);
- break;
- case M16_OPC_LW:
- gen_ld(ctx, OPC_LW, ry, rx, offset);
- break;
- case M16_OPC_LBU:
- gen_ld(ctx, OPC_LBU, ry, rx, offset);
- break;
- case M16_OPC_LHU:
- gen_ld(ctx, OPC_LHU, ry, rx, offset);
- break;
- case M16_OPC_LWPC:
- gen_ld(ctx, OPC_LWPC, rx, 0, offset);
- break;
-#if defined(TARGET_MIPS64)
- case M16_OPC_LWU:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_ld(ctx, OPC_LWU, ry, rx, offset);
- break;
-#endif
- case M16_OPC_SB:
- gen_st(ctx, OPC_SB, ry, rx, offset);
- break;
- case M16_OPC_SH:
- gen_st(ctx, OPC_SH, ry, rx, offset);
- break;
- case M16_OPC_SWSP:
- gen_st(ctx, OPC_SW, rx, 29, offset);
- break;
- case M16_OPC_SW:
- gen_st(ctx, OPC_SW, ry, rx, offset);
- break;
-#if defined(TARGET_MIPS64)
- case M16_OPC_I64:
- decode_i64_mips16(ctx, ry, funct, offset, 1);
- break;
-#endif
- default:
- gen_reserved_instruction(ctx);
- break;
- }
-
- return 4;
-}
-
-static inline bool is_uhi(int sdbbp_code)
-{
-#ifdef CONFIG_USER_ONLY
- return false;
-#else
- return semihosting_enabled() && sdbbp_code == 1;
-#endif
-}
-
-#ifdef CONFIG_USER_ONLY
-/* The above should dead-code away any calls to this..*/
-static inline void gen_helper_do_semihosting(void *env)
-{
- g_assert_not_reached();
-}
-#endif
-
-static int decode_mips16_opc(CPUMIPSState *env, DisasContext *ctx)
-{
- int rx, ry;
- int sa;
- int op, cnvt_op, op1, offset;
- int funct;
- int n_bytes;
-
- op = (ctx->opcode >> 11) & 0x1f;
- sa = (ctx->opcode >> 2) & 0x7;
- sa = sa == 0 ? 8 : sa;
- rx = xlat((ctx->opcode >> 8) & 0x7);
- cnvt_op = (ctx->opcode >> 5) & 0x7;
- ry = xlat((ctx->opcode >> 5) & 0x7);
- op1 = offset = ctx->opcode & 0x1f;
-
- n_bytes = 2;
-
- switch (op) {
- case M16_OPC_ADDIUSP:
- {
- int16_t imm = ((uint8_t) ctx->opcode) << 2;
-
- gen_arith_imm(ctx, OPC_ADDIU, rx, 29, imm);
- }
- break;
- case M16_OPC_ADDIUPC:
- gen_addiupc(ctx, rx, ((uint8_t) ctx->opcode) << 2, 0, 0);
- break;
- case M16_OPC_B:
- offset = (ctx->opcode & 0x7ff) << 1;
- offset = (int16_t)(offset << 4) >> 4;
- gen_compute_branch(ctx, OPC_BEQ, 2, 0, 0, offset, 0);
- /* No delay slot, so just process as a normal instruction */
- break;
- case M16_OPC_JAL:
- offset = translator_lduw(env, ctx->base.pc_next + 2);
- offset = (((ctx->opcode & 0x1f) << 21)
- | ((ctx->opcode >> 5) & 0x1f) << 16
- | offset) << 2;
- op = ((ctx->opcode >> 10) & 0x1) ? OPC_JALX : OPC_JAL;
- gen_compute_branch(ctx, op, 4, rx, ry, offset, 2);
- n_bytes = 4;
- break;
- case M16_OPC_BEQZ:
- gen_compute_branch(ctx, OPC_BEQ, 2, rx, 0,
- ((int8_t)ctx->opcode) << 1, 0);
- /* No delay slot, so just process as a normal instruction */
- break;
- case M16_OPC_BNEQZ:
- gen_compute_branch(ctx, OPC_BNE, 2, rx, 0,
- ((int8_t)ctx->opcode) << 1, 0);
- /* No delay slot, so just process as a normal instruction */
- break;
- case M16_OPC_SHIFT:
- switch (ctx->opcode & 0x3) {
- case 0x0:
- gen_shift_imm(ctx, OPC_SLL, rx, ry, sa);
- break;
- case 0x1:
-#if defined(TARGET_MIPS64)
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_shift_imm(ctx, OPC_DSLL, rx, ry, sa);
-#else
- gen_reserved_instruction(ctx);
-#endif
- break;
- case 0x2:
- gen_shift_imm(ctx, OPC_SRL, rx, ry, sa);
- break;
- case 0x3:
- gen_shift_imm(ctx, OPC_SRA, rx, ry, sa);
- break;
- }
- break;
-#if defined(TARGET_MIPS64)
- case M16_OPC_LD:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_ld(ctx, OPC_LD, ry, rx, offset << 3);
- break;
-#endif
- case M16_OPC_RRIA:
- {
- int16_t imm = (int8_t)((ctx->opcode & 0xf) << 4) >> 4;
-
- if ((ctx->opcode >> 4) & 1) {
-#if defined(TARGET_MIPS64)
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_arith_imm(ctx, OPC_DADDIU, ry, rx, imm);
-#else
- gen_reserved_instruction(ctx);
-#endif
- } else {
- gen_arith_imm(ctx, OPC_ADDIU, ry, rx, imm);
- }
- }
- break;
- case M16_OPC_ADDIU8:
- {
- int16_t imm = (int8_t) ctx->opcode;
-
- gen_arith_imm(ctx, OPC_ADDIU, rx, rx, imm);
- }
- break;
- case M16_OPC_SLTI:
- {
- int16_t imm = (uint8_t) ctx->opcode;
- gen_slt_imm(ctx, OPC_SLTI, 24, rx, imm);
- }
- break;
- case M16_OPC_SLTIU:
- {
- int16_t imm = (uint8_t) ctx->opcode;
- gen_slt_imm(ctx, OPC_SLTIU, 24, rx, imm);
- }
- break;
- case M16_OPC_I8:
- {
- int reg32;
-
- funct = (ctx->opcode >> 8) & 0x7;
- switch (funct) {
- case I8_BTEQZ:
- gen_compute_branch(ctx, OPC_BEQ, 2, 24, 0,
- ((int8_t)ctx->opcode) << 1, 0);
- break;
- case I8_BTNEZ:
- gen_compute_branch(ctx, OPC_BNE, 2, 24, 0,
- ((int8_t)ctx->opcode) << 1, 0);
- break;
- case I8_SWRASP:
- gen_st(ctx, OPC_SW, 31, 29, (ctx->opcode & 0xff) << 2);
- break;
- case I8_ADJSP:
- gen_arith_imm(ctx, OPC_ADDIU, 29, 29,
- ((int8_t)ctx->opcode) << 3);
- break;
- case I8_SVRS:
- check_insn(ctx, ISA_MIPS_R1);
- {
- int do_ra = ctx->opcode & (1 << 6);
- int do_s0 = ctx->opcode & (1 << 5);
- int do_s1 = ctx->opcode & (1 << 4);
- int framesize = ctx->opcode & 0xf;
-
- if (framesize == 0) {
- framesize = 128;
- } else {
- framesize = framesize << 3;
- }
-
- if (ctx->opcode & (1 << 7)) {
- gen_mips16_save(ctx, 0, 0,
- do_ra, do_s0, do_s1, framesize);
- } else {
- gen_mips16_restore(ctx, 0, 0,
- do_ra, do_s0, do_s1, framesize);
- }
- }
- break;
- case I8_MOV32R:
- {
- int rz = xlat(ctx->opcode & 0x7);
-
- reg32 = (((ctx->opcode >> 3) & 0x3) << 3) |
- ((ctx->opcode >> 5) & 0x7);
- gen_arith(ctx, OPC_ADDU, reg32, rz, 0);
- }
- break;
- case I8_MOVR32:
- reg32 = ctx->opcode & 0x1f;
- gen_arith(ctx, OPC_ADDU, ry, reg32, 0);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- }
- break;
- case M16_OPC_LI:
- {
- int16_t imm = (uint8_t) ctx->opcode;
-
- gen_arith_imm(ctx, OPC_ADDIU, rx, 0, imm);
- }
- break;
- case M16_OPC_CMPI:
- {
- int16_t imm = (uint8_t) ctx->opcode;
- gen_logic_imm(ctx, OPC_XORI, 24, rx, imm);
- }
- break;
-#if defined(TARGET_MIPS64)
- case M16_OPC_SD:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_st(ctx, OPC_SD, ry, rx, offset << 3);
- break;
-#endif
- case M16_OPC_LB:
- gen_ld(ctx, OPC_LB, ry, rx, offset);
- break;
- case M16_OPC_LH:
- gen_ld(ctx, OPC_LH, ry, rx, offset << 1);
- break;
- case M16_OPC_LWSP:
- gen_ld(ctx, OPC_LW, rx, 29, ((uint8_t)ctx->opcode) << 2);
- break;
- case M16_OPC_LW:
- gen_ld(ctx, OPC_LW, ry, rx, offset << 2);
- break;
- case M16_OPC_LBU:
- gen_ld(ctx, OPC_LBU, ry, rx, offset);
- break;
- case M16_OPC_LHU:
- gen_ld(ctx, OPC_LHU, ry, rx, offset << 1);
- break;
- case M16_OPC_LWPC:
- gen_ld(ctx, OPC_LWPC, rx, 0, ((uint8_t)ctx->opcode) << 2);
- break;
-#if defined(TARGET_MIPS64)
- case M16_OPC_LWU:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_ld(ctx, OPC_LWU, ry, rx, offset << 2);
- break;
-#endif
- case M16_OPC_SB:
- gen_st(ctx, OPC_SB, ry, rx, offset);
- break;
- case M16_OPC_SH:
- gen_st(ctx, OPC_SH, ry, rx, offset << 1);
- break;
- case M16_OPC_SWSP:
- gen_st(ctx, OPC_SW, rx, 29, ((uint8_t)ctx->opcode) << 2);
- break;
- case M16_OPC_SW:
- gen_st(ctx, OPC_SW, ry, rx, offset << 2);
- break;
- case M16_OPC_RRR:
- {
- int rz = xlat((ctx->opcode >> 2) & 0x7);
- int mips32_op;
-
- switch (ctx->opcode & 0x3) {
- case RRR_ADDU:
- mips32_op = OPC_ADDU;
- break;
- case RRR_SUBU:
- mips32_op = OPC_SUBU;
- break;
-#if defined(TARGET_MIPS64)
- case RRR_DADDU:
- mips32_op = OPC_DADDU;
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- break;
- case RRR_DSUBU:
- mips32_op = OPC_DSUBU;
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- break;
-#endif
- default:
- gen_reserved_instruction(ctx);
- goto done;
- }
-
- gen_arith(ctx, mips32_op, rz, rx, ry);
- done:
- ;
- }
- break;
- case M16_OPC_RR:
- switch (op1) {
- case RR_JR:
- {
- int nd = (ctx->opcode >> 7) & 0x1;
- int link = (ctx->opcode >> 6) & 0x1;
- int ra = (ctx->opcode >> 5) & 0x1;
-
- if (nd) {
- check_insn(ctx, ISA_MIPS_R1);
- }
-
- if (link) {
- op = OPC_JALR;
- } else {
- op = OPC_JR;
- }
-
- gen_compute_branch(ctx, op, 2, ra ? 31 : rx, 31, 0,
- (nd ? 0 : 2));
- }
- break;
- case RR_SDBBP:
- if (is_uhi(extract32(ctx->opcode, 5, 6))) {
- gen_helper_do_semihosting(cpu_env);
- } else {
- /*
- * XXX: not clear which exception should be raised
- * when in debug mode...
- */
- check_insn(ctx, ISA_MIPS_R1);
- generate_exception_end(ctx, EXCP_DBp);
- }
- break;
- case RR_SLT:
- gen_slt(ctx, OPC_SLT, 24, rx, ry);
- break;
- case RR_SLTU:
- gen_slt(ctx, OPC_SLTU, 24, rx, ry);
- break;
- case RR_BREAK:
- generate_exception_end(ctx, EXCP_BREAK);
- break;
- case RR_SLLV:
- gen_shift(ctx, OPC_SLLV, ry, rx, ry);
- break;
- case RR_SRLV:
- gen_shift(ctx, OPC_SRLV, ry, rx, ry);
- break;
- case RR_SRAV:
- gen_shift(ctx, OPC_SRAV, ry, rx, ry);
- break;
-#if defined(TARGET_MIPS64)
- case RR_DSRL:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_shift_imm(ctx, OPC_DSRL, ry, ry, sa);
- break;
-#endif
- case RR_CMP:
- gen_logic(ctx, OPC_XOR, 24, rx, ry);
- break;
- case RR_NEG:
- gen_arith(ctx, OPC_SUBU, rx, 0, ry);
- break;
- case RR_AND:
- gen_logic(ctx, OPC_AND, rx, rx, ry);
- break;
- case RR_OR:
- gen_logic(ctx, OPC_OR, rx, rx, ry);
- break;
- case RR_XOR:
- gen_logic(ctx, OPC_XOR, rx, rx, ry);
- break;
- case RR_NOT:
- gen_logic(ctx, OPC_NOR, rx, ry, 0);
- break;
- case RR_MFHI:
- gen_HILO(ctx, OPC_MFHI, 0, rx);
- break;
- case RR_CNVT:
- check_insn(ctx, ISA_MIPS_R1);
- switch (cnvt_op) {
- case RR_RY_CNVT_ZEB:
- tcg_gen_ext8u_tl(cpu_gpr[rx], cpu_gpr[rx]);
- break;
- case RR_RY_CNVT_ZEH:
- tcg_gen_ext16u_tl(cpu_gpr[rx], cpu_gpr[rx]);
- break;
- case RR_RY_CNVT_SEB:
- tcg_gen_ext8s_tl(cpu_gpr[rx], cpu_gpr[rx]);
- break;
- case RR_RY_CNVT_SEH:
- tcg_gen_ext16s_tl(cpu_gpr[rx], cpu_gpr[rx]);
- break;
-#if defined(TARGET_MIPS64)
- case RR_RY_CNVT_ZEW:
- check_insn(ctx, ISA_MIPS_R1);
- check_mips_64(ctx);
- tcg_gen_ext32u_tl(cpu_gpr[rx], cpu_gpr[rx]);
- break;
- case RR_RY_CNVT_SEW:
- check_insn(ctx, ISA_MIPS_R1);
- check_mips_64(ctx);
- tcg_gen_ext32s_tl(cpu_gpr[rx], cpu_gpr[rx]);
- break;
-#endif
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case RR_MFLO:
- gen_HILO(ctx, OPC_MFLO, 0, rx);
- break;
-#if defined(TARGET_MIPS64)
- case RR_DSRA:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_shift_imm(ctx, OPC_DSRA, ry, ry, sa);
- break;
- case RR_DSLLV:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_shift(ctx, OPC_DSLLV, ry, rx, ry);
- break;
- case RR_DSRLV:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_shift(ctx, OPC_DSRLV, ry, rx, ry);
- break;
- case RR_DSRAV:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_shift(ctx, OPC_DSRAV, ry, rx, ry);
- break;
-#endif
- case RR_MULT:
- gen_muldiv(ctx, OPC_MULT, 0, rx, ry);
- break;
- case RR_MULTU:
- gen_muldiv(ctx, OPC_MULTU, 0, rx, ry);
- break;
- case RR_DIV:
- gen_muldiv(ctx, OPC_DIV, 0, rx, ry);
- break;
- case RR_DIVU:
- gen_muldiv(ctx, OPC_DIVU, 0, rx, ry);
- break;
-#if defined(TARGET_MIPS64)
- case RR_DMULT:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_muldiv(ctx, OPC_DMULT, 0, rx, ry);
- break;
- case RR_DMULTU:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_muldiv(ctx, OPC_DMULTU, 0, rx, ry);
- break;
- case RR_DDIV:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_muldiv(ctx, OPC_DDIV, 0, rx, ry);
- break;
- case RR_DDIVU:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_muldiv(ctx, OPC_DDIVU, 0, rx, ry);
- break;
-#endif
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case M16_OPC_EXTEND:
- decode_extended_mips16_opc(env, ctx);
- n_bytes = 4;
- break;
-#if defined(TARGET_MIPS64)
- case M16_OPC_I64:
- funct = (ctx->opcode >> 8) & 0x7;
- decode_i64_mips16(ctx, ry, funct, offset, 0);
- break;
-#endif
- default:
- gen_reserved_instruction(ctx);
- break;
- }
-
- return n_bytes;
-}
-
-/* microMIPS extension to MIPS32/MIPS64 */
-
-/*
- * microMIPS32/microMIPS64 major opcodes
- *
- * 1. MIPS Architecture for Programmers Volume II-B:
- * The microMIPS32 Instruction Set (Revision 3.05)
- *
- * Table 6.2 microMIPS32 Encoding of Major Opcode Field
- *
- * 2. MIPS Architecture For Programmers Volume II-A:
- * The MIPS64 Instruction Set (Revision 3.51)
- */
-
-enum {
- POOL32A = 0x00,
- POOL16A = 0x01,
- LBU16 = 0x02,
- MOVE16 = 0x03,
- ADDI32 = 0x04,
- R6_LUI = 0x04,
- AUI = 0x04,
- LBU32 = 0x05,
- SB32 = 0x06,
- LB32 = 0x07,
-
- POOL32B = 0x08,
- POOL16B = 0x09,
- LHU16 = 0x0a,
- ANDI16 = 0x0b,
- ADDIU32 = 0x0c,
- LHU32 = 0x0d,
- SH32 = 0x0e,
- LH32 = 0x0f,
-
- POOL32I = 0x10,
- POOL16C = 0x11,
- LWSP16 = 0x12,
- POOL16D = 0x13,
- ORI32 = 0x14,
- POOL32F = 0x15,
- POOL32S = 0x16, /* MIPS64 */
- DADDIU32 = 0x17, /* MIPS64 */
-
- POOL32C = 0x18,
- LWGP16 = 0x19,
- LW16 = 0x1a,
- POOL16E = 0x1b,
- XORI32 = 0x1c,
- JALS32 = 0x1d,
- BOVC = 0x1d,
- BEQC = 0x1d,
- BEQZALC = 0x1d,
- ADDIUPC = 0x1e,
- PCREL = 0x1e,
- BNVC = 0x1f,
- BNEC = 0x1f,
- BNEZALC = 0x1f,
-
- R6_BEQZC = 0x20,
- JIC = 0x20,
- POOL16F = 0x21,
- SB16 = 0x22,
- BEQZ16 = 0x23,
- BEQZC16 = 0x23,
- SLTI32 = 0x24,
- BEQ32 = 0x25,
- BC = 0x25,
- SWC132 = 0x26,
- LWC132 = 0x27,
-
- /* 0x29 is reserved */
- RES_29 = 0x29,
- R6_BNEZC = 0x28,
- JIALC = 0x28,
- SH16 = 0x2a,
- BNEZ16 = 0x2b,
- BNEZC16 = 0x2b,
- SLTIU32 = 0x2c,
- BNE32 = 0x2d,
- BALC = 0x2d,
- SDC132 = 0x2e,
- LDC132 = 0x2f,
-
- /* 0x31 is reserved */
- RES_31 = 0x31,
- BLEZALC = 0x30,
- BGEZALC = 0x30,
- BGEUC = 0x30,
- SWSP16 = 0x32,
- B16 = 0x33,
- BC16 = 0x33,
- ANDI32 = 0x34,
- J32 = 0x35,
- BGTZC = 0x35,
- BLTZC = 0x35,
- BLTC = 0x35,
- SD32 = 0x36, /* MIPS64 */
- LD32 = 0x37, /* MIPS64 */
-
- /* 0x39 is reserved */
- RES_39 = 0x39,
- BGTZALC = 0x38,
- BLTZALC = 0x38,
- BLTUC = 0x38,
- SW16 = 0x3a,
- LI16 = 0x3b,
- JALX32 = 0x3c,
- JAL32 = 0x3d,
- BLEZC = 0x3d,
- BGEZC = 0x3d,
- BGEC = 0x3d,
- SW32 = 0x3e,
- LW32 = 0x3f
-};
-
-/* PCREL Instructions perform PC-Relative address calculation. bits 20..16 */
-enum {
- ADDIUPC_00 = 0x00,
- ADDIUPC_01 = 0x01,
- ADDIUPC_02 = 0x02,
- ADDIUPC_03 = 0x03,
- ADDIUPC_04 = 0x04,
- ADDIUPC_05 = 0x05,
- ADDIUPC_06 = 0x06,
- ADDIUPC_07 = 0x07,
- AUIPC = 0x1e,
- ALUIPC = 0x1f,
- LWPC_08 = 0x08,
- LWPC_09 = 0x09,
- LWPC_0A = 0x0A,
- LWPC_0B = 0x0B,
- LWPC_0C = 0x0C,
- LWPC_0D = 0x0D,
- LWPC_0E = 0x0E,
- LWPC_0F = 0x0F,
-};
-
-/* POOL32A encoding of minor opcode field */
-
-enum {
- /*
- * These opcodes are distinguished only by bits 9..6; those bits are
- * what are recorded below.
- */
- SLL32 = 0x0,
- SRL32 = 0x1,
- SRA = 0x2,
- ROTR = 0x3,
- SELEQZ = 0x5,
- SELNEZ = 0x6,
- R6_RDHWR = 0x7,
-
- SLLV = 0x0,
- SRLV = 0x1,
- SRAV = 0x2,
- ROTRV = 0x3,
- ADD = 0x4,
- ADDU32 = 0x5,
- SUB = 0x6,
- SUBU32 = 0x7,
- MUL = 0x8,
- AND = 0x9,
- OR32 = 0xa,
- NOR = 0xb,
- XOR32 = 0xc,
- SLT = 0xd,
- SLTU = 0xe,
-
- MOVN = 0x0,
- R6_MUL = 0x0,
- MOVZ = 0x1,
- MUH = 0x1,
- MULU = 0x2,
- MUHU = 0x3,
- LWXS = 0x4,
- R6_DIV = 0x4,
- MOD = 0x5,
- R6_DIVU = 0x6,
- MODU = 0x7,
-
- /* The following can be distinguished by their lower 6 bits. */
- BREAK32 = 0x07,
- INS = 0x0c,
- LSA = 0x0f,
- ALIGN = 0x1f,
- EXT = 0x2c,
- POOL32AXF = 0x3c,
- SIGRIE = 0x3f
-};
-
-/* POOL32AXF encoding of minor opcode field extension */
-
-/*
- * 1. MIPS Architecture for Programmers Volume II-B:
- * The microMIPS32 Instruction Set (Revision 3.05)
- *
- * Table 6.5 POOL32Axf Encoding of Minor Opcode Extension Field
- *
- * 2. MIPS Architecture for Programmers VolumeIV-e:
- * The MIPS DSP Application-Specific Extension
- * to the microMIPS32 Architecture (Revision 2.34)
- *
- * Table 5.5 POOL32Axf Encoding of Minor Opcode Extension Field
- */
-
-enum {
- /* bits 11..6 */
- TEQ = 0x00,
- TGE = 0x08,
- TGEU = 0x10,
- TLT = 0x20,
- TLTU = 0x28,
- TNE = 0x30,
-
- MFC0 = 0x03,
- MTC0 = 0x0b,
-
- /* begin of microMIPS32 DSP */
-
- /* bits 13..12 for 0x01 */
- MFHI_ACC = 0x0,
- MFLO_ACC = 0x1,
- MTHI_ACC = 0x2,
- MTLO_ACC = 0x3,
-
- /* bits 13..12 for 0x2a */
- MADD_ACC = 0x0,
- MADDU_ACC = 0x1,
- MSUB_ACC = 0x2,
- MSUBU_ACC = 0x3,
-
- /* bits 13..12 for 0x32 */
- MULT_ACC = 0x0,
- MULTU_ACC = 0x1,
-
- /* end of microMIPS32 DSP */
-
- /* bits 15..12 for 0x2c */
- BITSWAP = 0x0,
- SEB = 0x2,
- SEH = 0x3,
- CLO = 0x4,
- CLZ = 0x5,
- RDHWR = 0x6,
- WSBH = 0x7,
- MULT = 0x8,
- MULTU = 0x9,
- DIV = 0xa,
- DIVU = 0xb,
- MADD = 0xc,
- MADDU = 0xd,
- MSUB = 0xe,
- MSUBU = 0xf,
-
- /* bits 15..12 for 0x34 */
- MFC2 = 0x4,
- MTC2 = 0x5,
- MFHC2 = 0x8,
- MTHC2 = 0x9,
- CFC2 = 0xc,
- CTC2 = 0xd,
-
- /* bits 15..12 for 0x3c */
- JALR = 0x0,
- JR = 0x0, /* alias */
- JALRC = 0x0,
- JRC = 0x0,
- JALR_HB = 0x1,
- JALRC_HB = 0x1,
- JALRS = 0x4,
- JALRS_HB = 0x5,
-
- /* bits 15..12 for 0x05 */
- RDPGPR = 0xe,
- WRPGPR = 0xf,
-
- /* bits 15..12 for 0x0d */
- TLBP = 0x0,
- TLBR = 0x1,
- TLBWI = 0x2,
- TLBWR = 0x3,
- TLBINV = 0x4,
- TLBINVF = 0x5,
- WAIT = 0x9,
- IRET = 0xd,
- DERET = 0xe,
- ERET = 0xf,
-
- /* bits 15..12 for 0x15 */
- DMT = 0x0,
- DVPE = 0x1,
- EMT = 0x2,
- EVPE = 0x3,
-
- /* bits 15..12 for 0x1d */
- DI = 0x4,
- EI = 0x5,
-
- /* bits 15..12 for 0x2d */
- SYNC = 0x6,
- SYSCALL = 0x8,
- SDBBP = 0xd,
-
- /* bits 15..12 for 0x35 */
- MFHI32 = 0x0,
- MFLO32 = 0x1,
- MTHI32 = 0x2,
- MTLO32 = 0x3,
-};
-
-/* POOL32B encoding of minor opcode field (bits 15..12) */
-
-enum {
- LWC2 = 0x0,
- LWP = 0x1,
- LDP = 0x4,
- LWM32 = 0x5,
- CACHE = 0x6,
- LDM = 0x7,
- SWC2 = 0x8,
- SWP = 0x9,
- SDP = 0xc,
- SWM32 = 0xd,
- SDM = 0xf
-};
-
-/* POOL32C encoding of minor opcode field (bits 15..12) */
-
-enum {
- LWL = 0x0,
- SWL = 0x8,
- LWR = 0x1,
- SWR = 0x9,
- PREF = 0x2,
- ST_EVA = 0xa,
- LL = 0x3,
- SC = 0xb,
- LDL = 0x4,
- SDL = 0xc,
- LDR = 0x5,
- SDR = 0xd,
- LD_EVA = 0x6,
- LWU = 0xe,
- LLD = 0x7,
- SCD = 0xf
-};
-
-/* POOL32C LD-EVA encoding of minor opcode field (bits 11..9) */
-
-enum {
- LBUE = 0x0,
- LHUE = 0x1,
- LWLE = 0x2,
- LWRE = 0x3,
- LBE = 0x4,
- LHE = 0x5,
- LLE = 0x6,
- LWE = 0x7,
-};
-
-/* POOL32C ST-EVA encoding of minor opcode field (bits 11..9) */
-
-enum {
- SWLE = 0x0,
- SWRE = 0x1,
- PREFE = 0x2,
- CACHEE = 0x3,
- SBE = 0x4,
- SHE = 0x5,
- SCE = 0x6,
- SWE = 0x7,
-};
-
-/* POOL32F encoding of minor opcode field (bits 5..0) */
-
-enum {
- /* These are the bit 7..6 values */
- ADD_FMT = 0x0,
-
- SUB_FMT = 0x1,
-
- MUL_FMT = 0x2,
-
- DIV_FMT = 0x3,
-
- /* These are the bit 8..6 values */
- MOVN_FMT = 0x0,
- RSQRT2_FMT = 0x0,
- MOVF_FMT = 0x0,
- RINT_FMT = 0x0,
- SELNEZ_FMT = 0x0,
-
- MOVZ_FMT = 0x1,
- LWXC1 = 0x1,
- MOVT_FMT = 0x1,
- CLASS_FMT = 0x1,
- SELEQZ_FMT = 0x1,
-
- PLL_PS = 0x2,
- SWXC1 = 0x2,
- SEL_FMT = 0x2,
-
- PLU_PS = 0x3,
- LDXC1 = 0x3,
-
- MOVN_FMT_04 = 0x4,
- PUL_PS = 0x4,
- SDXC1 = 0x4,
- RECIP2_FMT = 0x4,
-
- MOVZ_FMT_05 = 0x05,
- PUU_PS = 0x5,
- LUXC1 = 0x5,
-
- CVT_PS_S = 0x6,
- SUXC1 = 0x6,
- ADDR_PS = 0x6,
- PREFX = 0x6,
- MADDF_FMT = 0x6,
-
- MULR_PS = 0x7,
- MSUBF_FMT = 0x7,
-
- MADD_S = 0x01,
- MADD_D = 0x09,
- MADD_PS = 0x11,
- ALNV_PS = 0x19,
- MSUB_S = 0x21,
- MSUB_D = 0x29,
- MSUB_PS = 0x31,
-
- NMADD_S = 0x02,
- NMADD_D = 0x0a,
- NMADD_PS = 0x12,
- NMSUB_S = 0x22,
- NMSUB_D = 0x2a,
- NMSUB_PS = 0x32,
-
- MIN_FMT = 0x3,
- MAX_FMT = 0xb,
- MINA_FMT = 0x23,
- MAXA_FMT = 0x2b,
- POOL32FXF = 0x3b,
-
- CABS_COND_FMT = 0x1c, /* MIPS3D */
- C_COND_FMT = 0x3c,
-
- CMP_CONDN_S = 0x5,
- CMP_CONDN_D = 0x15
-};
-
-/* POOL32Fxf encoding of minor opcode extension field */
-
-enum {
- CVT_L = 0x04,
- RSQRT_FMT = 0x08,
- FLOOR_L = 0x0c,
- CVT_PW_PS = 0x1c,
- CVT_W = 0x24,
- SQRT_FMT = 0x28,
- FLOOR_W = 0x2c,
- CVT_PS_PW = 0x3c,
- CFC1 = 0x40,
- RECIP_FMT = 0x48,
- CEIL_L = 0x4c,
- CTC1 = 0x60,
- CEIL_W = 0x6c,
- MFC1 = 0x80,
- CVT_S_PL = 0x84,
- TRUNC_L = 0x8c,
- MTC1 = 0xa0,
- CVT_S_PU = 0xa4,
- TRUNC_W = 0xac,
- MFHC1 = 0xc0,
- ROUND_L = 0xcc,
- MTHC1 = 0xe0,
- ROUND_W = 0xec,
-
- MOV_FMT = 0x01,
- MOVF = 0x05,
- ABS_FMT = 0x0d,
- RSQRT1_FMT = 0x1d,
- MOVT = 0x25,
- NEG_FMT = 0x2d,
- CVT_D = 0x4d,
- RECIP1_FMT = 0x5d,
- CVT_S = 0x6d
-};
-
-/* POOL32I encoding of minor opcode field (bits 25..21) */
-
-enum {
- BLTZ = 0x00,
- BLTZAL = 0x01,
- BGEZ = 0x02,
- BGEZAL = 0x03,
- BLEZ = 0x04,
- BNEZC = 0x05,
- BGTZ = 0x06,
- BEQZC = 0x07,
- TLTI = 0x08,
- BC1EQZC = 0x08,
- TGEI = 0x09,
- BC1NEZC = 0x09,
- TLTIU = 0x0a,
- BC2EQZC = 0x0a,
- TGEIU = 0x0b,
- BC2NEZC = 0x0a,
- TNEI = 0x0c,
- R6_SYNCI = 0x0c,
- LUI = 0x0d,
- TEQI = 0x0e,
- SYNCI = 0x10,
- BLTZALS = 0x11,
- BGEZALS = 0x13,
- BC2F = 0x14,
- BC2T = 0x15,
- BPOSGE64 = 0x1a,
- BPOSGE32 = 0x1b,
- /* These overlap and are distinguished by bit16 of the instruction */
- BC1F = 0x1c,
- BC1T = 0x1d,
- BC1ANY2F = 0x1c,
- BC1ANY2T = 0x1d,
- BC1ANY4F = 0x1e,
- BC1ANY4T = 0x1f
-};
-
-/* POOL16A encoding of minor opcode field */
-
-enum {
- ADDU16 = 0x0,
- SUBU16 = 0x1
-};
-
-/* POOL16B encoding of minor opcode field */
-
-enum {
- SLL16 = 0x0,
- SRL16 = 0x1
-};
-
-/* POOL16C encoding of minor opcode field */
-
-enum {
- NOT16 = 0x00,
- XOR16 = 0x04,
- AND16 = 0x08,
- OR16 = 0x0c,
- LWM16 = 0x10,
- SWM16 = 0x14,
- JR16 = 0x18,
- JRC16 = 0x1a,
- JALR16 = 0x1c,
- JALR16S = 0x1e,
- MFHI16 = 0x20,
- MFLO16 = 0x24,
- BREAK16 = 0x28,
- SDBBP16 = 0x2c,
- JRADDIUSP = 0x30
-};
-
-/* R6 POOL16C encoding of minor opcode field (bits 0..5) */
-
-enum {
- R6_NOT16 = 0x00,
- R6_AND16 = 0x01,
- R6_LWM16 = 0x02,
- R6_JRC16 = 0x03,
- MOVEP = 0x04,
- MOVEP_05 = 0x05,
- MOVEP_06 = 0x06,
- MOVEP_07 = 0x07,
- R6_XOR16 = 0x08,
- R6_OR16 = 0x09,
- R6_SWM16 = 0x0a,
- JALRC16 = 0x0b,
- MOVEP_0C = 0x0c,
- MOVEP_0D = 0x0d,
- MOVEP_0E = 0x0e,
- MOVEP_0F = 0x0f,
- JRCADDIUSP = 0x13,
- R6_BREAK16 = 0x1b,
- R6_SDBBP16 = 0x3b
-};
-
-/* POOL16D encoding of minor opcode field */
-
-enum {
- ADDIUS5 = 0x0,
- ADDIUSP = 0x1
-};
-
-/* POOL16E encoding of minor opcode field */
-
-enum {
- ADDIUR2 = 0x0,
- ADDIUR1SP = 0x1
-};
-
-static int mmreg(int r)
-{
- static const int map[] = { 16, 17, 2, 3, 4, 5, 6, 7 };
-
- return map[r];
-}
-
-/* Used for 16-bit store instructions. */
-static int mmreg2(int r)
-{
- static const int map[] = { 0, 17, 2, 3, 4, 5, 6, 7 };
-
- return map[r];
-}
-
-#define uMIPS_RD(op) ((op >> 7) & 0x7)
-#define uMIPS_RS(op) ((op >> 4) & 0x7)
-#define uMIPS_RS2(op) uMIPS_RS(op)
-#define uMIPS_RS1(op) ((op >> 1) & 0x7)
-#define uMIPS_RD5(op) ((op >> 5) & 0x1f)
-#define uMIPS_RS5(op) (op & 0x1f)
-
-/* Signed immediate */
-#define SIMM(op, start, width) \
- ((int32_t)(((op >> start) & ((~0U) >> (32 - width))) \
- << (32 - width)) \
- >> (32 - width))
-/* Zero-extended immediate */
-#define ZIMM(op, start, width) ((op >> start) & ((~0U) >> (32 - width)))
-
-static void gen_addiur1sp(DisasContext *ctx)
-{
- int rd = mmreg(uMIPS_RD(ctx->opcode));
-
- gen_arith_imm(ctx, OPC_ADDIU, rd, 29, ((ctx->opcode >> 1) & 0x3f) << 2);
-}
-
-static void gen_addiur2(DisasContext *ctx)
-{
- static const int decoded_imm[] = { 1, 4, 8, 12, 16, 20, 24, -1 };
- int rd = mmreg(uMIPS_RD(ctx->opcode));
- int rs = mmreg(uMIPS_RS(ctx->opcode));
-
- gen_arith_imm(ctx, OPC_ADDIU, rd, rs, decoded_imm[ZIMM(ctx->opcode, 1, 3)]);
-}
-
-static void gen_addiusp(DisasContext *ctx)
-{
- int encoded = ZIMM(ctx->opcode, 1, 9);
- int decoded;
-
- if (encoded <= 1) {
- decoded = 256 + encoded;
- } else if (encoded <= 255) {
- decoded = encoded;
- } else if (encoded <= 509) {
- decoded = encoded - 512;
- } else {
- decoded = encoded - 768;
- }
-
- gen_arith_imm(ctx, OPC_ADDIU, 29, 29, decoded << 2);
-}
-
-static void gen_addius5(DisasContext *ctx)
-{
- int imm = SIMM(ctx->opcode, 1, 4);
- int rd = (ctx->opcode >> 5) & 0x1f;
-
- gen_arith_imm(ctx, OPC_ADDIU, rd, rd, imm);
-}
-
-static void gen_andi16(DisasContext *ctx)
-{
- static const int decoded_imm[] = { 128, 1, 2, 3, 4, 7, 8, 15, 16,
- 31, 32, 63, 64, 255, 32768, 65535 };
- int rd = mmreg(uMIPS_RD(ctx->opcode));
- int rs = mmreg(uMIPS_RS(ctx->opcode));
- int encoded = ZIMM(ctx->opcode, 0, 4);
-
- gen_logic_imm(ctx, OPC_ANDI, rd, rs, decoded_imm[encoded]);
-}
-
-static void gen_ldst_multiple(DisasContext *ctx, uint32_t opc, int reglist,
- int base, int16_t offset)
-{
- TCGv t0, t1;
- TCGv_i32 t2;
-
- if (ctx->hflags & MIPS_HFLAG_BMASK) {
- gen_reserved_instruction(ctx);
- return;
- }
-
- t0 = tcg_temp_new();
-
- gen_base_offset_addr(ctx, t0, base, offset);
-
- t1 = tcg_const_tl(reglist);
- t2 = tcg_const_i32(ctx->mem_idx);
-
- save_cpu_state(ctx, 1);
- switch (opc) {
- case LWM32:
- gen_helper_lwm(cpu_env, t0, t1, t2);
- break;
- case SWM32:
- gen_helper_swm(cpu_env, t0, t1, t2);
- break;
-#ifdef TARGET_MIPS64
- case LDM:
- gen_helper_ldm(cpu_env, t0, t1, t2);
- break;
- case SDM:
- gen_helper_sdm(cpu_env, t0, t1, t2);
- break;
-#endif
- }
- tcg_temp_free(t0);
- tcg_temp_free(t1);
- tcg_temp_free_i32(t2);
-}
-
-
-static void gen_pool16c_insn(DisasContext *ctx)
-{
- int rd = mmreg((ctx->opcode >> 3) & 0x7);
- int rs = mmreg(ctx->opcode & 0x7);
-
- switch (((ctx->opcode) >> 4) & 0x3f) {
- case NOT16 + 0:
- case NOT16 + 1:
- case NOT16 + 2:
- case NOT16 + 3:
- gen_logic(ctx, OPC_NOR, rd, rs, 0);
- break;
- case XOR16 + 0:
- case XOR16 + 1:
- case XOR16 + 2:
- case XOR16 + 3:
- gen_logic(ctx, OPC_XOR, rd, rd, rs);
- break;
- case AND16 + 0:
- case AND16 + 1:
- case AND16 + 2:
- case AND16 + 3:
- gen_logic(ctx, OPC_AND, rd, rd, rs);
- break;
- case OR16 + 0:
- case OR16 + 1:
- case OR16 + 2:
- case OR16 + 3:
- gen_logic(ctx, OPC_OR, rd, rd, rs);
- break;
- case LWM16 + 0:
- case LWM16 + 1:
- case LWM16 + 2:
- case LWM16 + 3:
- {
- static const int lwm_convert[] = { 0x11, 0x12, 0x13, 0x14 };
- int offset = ZIMM(ctx->opcode, 0, 4);
-
- gen_ldst_multiple(ctx, LWM32, lwm_convert[(ctx->opcode >> 4) & 0x3],
- 29, offset << 2);
- }
- break;
- case SWM16 + 0:
- case SWM16 + 1:
- case SWM16 + 2:
- case SWM16 + 3:
- {
- static const int swm_convert[] = { 0x11, 0x12, 0x13, 0x14 };
- int offset = ZIMM(ctx->opcode, 0, 4);
-
- gen_ldst_multiple(ctx, SWM32, swm_convert[(ctx->opcode >> 4) & 0x3],
- 29, offset << 2);
- }
- break;
- case JR16 + 0:
- case JR16 + 1:
- {
- int reg = ctx->opcode & 0x1f;
-
- gen_compute_branch(ctx, OPC_JR, 2, reg, 0, 0, 4);
- }
- break;
- case JRC16 + 0:
- case JRC16 + 1:
- {
- int reg = ctx->opcode & 0x1f;
- gen_compute_branch(ctx, OPC_JR, 2, reg, 0, 0, 0);
- /*
- * Let normal delay slot handling in our caller take us
- * to the branch target.
- */
- }
- break;
- case JALR16 + 0:
- case JALR16 + 1:
- gen_compute_branch(ctx, OPC_JALR, 2, ctx->opcode & 0x1f, 31, 0, 4);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- break;
- case JALR16S + 0:
- case JALR16S + 1:
- gen_compute_branch(ctx, OPC_JALR, 2, ctx->opcode & 0x1f, 31, 0, 2);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- break;
- case MFHI16 + 0:
- case MFHI16 + 1:
- gen_HILO(ctx, OPC_MFHI, 0, uMIPS_RS5(ctx->opcode));
- break;
- case MFLO16 + 0:
- case MFLO16 + 1:
- gen_HILO(ctx, OPC_MFLO, 0, uMIPS_RS5(ctx->opcode));
- break;
- case BREAK16:
- generate_exception_end(ctx, EXCP_BREAK);
- break;
- case SDBBP16:
- if (is_uhi(extract32(ctx->opcode, 0, 4))) {
- gen_helper_do_semihosting(cpu_env);
- } else {
- /*
- * XXX: not clear which exception should be raised
- * when in debug mode...
- */
- check_insn(ctx, ISA_MIPS_R1);
- generate_exception_end(ctx, EXCP_DBp);
- }
- break;
- case JRADDIUSP + 0:
- case JRADDIUSP + 1:
- {
- int imm = ZIMM(ctx->opcode, 0, 5);
- gen_compute_branch(ctx, OPC_JR, 2, 31, 0, 0, 0);
- gen_arith_imm(ctx, OPC_ADDIU, 29, 29, imm << 2);
- /*
- * Let normal delay slot handling in our caller take us
- * to the branch target.
- */
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
-}
-
-static inline void gen_movep(DisasContext *ctx, int enc_dest, int enc_rt,
- int enc_rs)
-{
- int rd, re;
- static const int rd_enc[] = { 5, 5, 6, 4, 4, 4, 4, 4 };
- static const int re_enc[] = { 6, 7, 7, 21, 22, 5, 6, 7 };
- static const int rs_rt_enc[] = { 0, 17, 2, 3, 16, 18, 19, 20 };
-
- rd = rd_enc[enc_dest];
- re = re_enc[enc_dest];
- gen_load_gpr(cpu_gpr[rd], rs_rt_enc[enc_rs]);
- gen_load_gpr(cpu_gpr[re], rs_rt_enc[enc_rt]);
-}
-
-static void gen_pool16c_r6_insn(DisasContext *ctx)
-{
- int rt = mmreg((ctx->opcode >> 7) & 0x7);
- int rs = mmreg((ctx->opcode >> 4) & 0x7);
-
- switch (ctx->opcode & 0xf) {
- case R6_NOT16:
- gen_logic(ctx, OPC_NOR, rt, rs, 0);
- break;
- case R6_AND16:
- gen_logic(ctx, OPC_AND, rt, rt, rs);
- break;
- case R6_LWM16:
- {
- int lwm_converted = 0x11 + extract32(ctx->opcode, 8, 2);
- int offset = extract32(ctx->opcode, 4, 4);
- gen_ldst_multiple(ctx, LWM32, lwm_converted, 29, offset << 2);
- }
- break;
- case R6_JRC16: /* JRCADDIUSP */
- if ((ctx->opcode >> 4) & 1) {
- /* JRCADDIUSP */
- int imm = extract32(ctx->opcode, 5, 5);
- gen_compute_branch(ctx, OPC_JR, 2, 31, 0, 0, 0);
- gen_arith_imm(ctx, OPC_ADDIU, 29, 29, imm << 2);
- } else {
- /* JRC16 */
- rs = extract32(ctx->opcode, 5, 5);
- gen_compute_branch(ctx, OPC_JR, 2, rs, 0, 0, 0);
- }
- break;
- case MOVEP:
- case MOVEP_05:
- case MOVEP_06:
- case MOVEP_07:
- case MOVEP_0C:
- case MOVEP_0D:
- case MOVEP_0E:
- case MOVEP_0F:
- {
- int enc_dest = uMIPS_RD(ctx->opcode);
- int enc_rt = uMIPS_RS2(ctx->opcode);
- int enc_rs = (ctx->opcode & 3) | ((ctx->opcode >> 1) & 4);
- gen_movep(ctx, enc_dest, enc_rt, enc_rs);
- }
- break;
- case R6_XOR16:
- gen_logic(ctx, OPC_XOR, rt, rt, rs);
- break;
- case R6_OR16:
- gen_logic(ctx, OPC_OR, rt, rt, rs);
- break;
- case R6_SWM16:
- {
- int swm_converted = 0x11 + extract32(ctx->opcode, 8, 2);
- int offset = extract32(ctx->opcode, 4, 4);
- gen_ldst_multiple(ctx, SWM32, swm_converted, 29, offset << 2);
- }
- break;
- case JALRC16: /* BREAK16, SDBBP16 */
- switch (ctx->opcode & 0x3f) {
- case JALRC16:
- case JALRC16 + 0x20:
- /* JALRC16 */
- gen_compute_branch(ctx, OPC_JALR, 2, (ctx->opcode >> 5) & 0x1f,
- 31, 0, 0);
- break;
- case R6_BREAK16:
- /* BREAK16 */
- generate_exception(ctx, EXCP_BREAK);
- break;
- case R6_SDBBP16:
- /* SDBBP16 */
- if (is_uhi(extract32(ctx->opcode, 6, 4))) {
- gen_helper_do_semihosting(cpu_env);
- } else {
- if (ctx->hflags & MIPS_HFLAG_SBRI) {
- generate_exception(ctx, EXCP_RI);
- } else {
- generate_exception(ctx, EXCP_DBp);
- }
- }
- break;
- }
- break;
- default:
- generate_exception(ctx, EXCP_RI);
- break;
- }
-}
-
-static void gen_ldxs(DisasContext *ctx, int base, int index, int rd)
-{
- TCGv t0 = tcg_temp_new();
- TCGv t1 = tcg_temp_new();
-
- gen_load_gpr(t0, base);
-
- if (index != 0) {
- gen_load_gpr(t1, index);
- tcg_gen_shli_tl(t1, t1, 2);
- gen_op_addr_add(ctx, t0, t1, t0);
- }
-
- tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_TESL);
- gen_store_gpr(t1, rd);
-
- tcg_temp_free(t0);
- tcg_temp_free(t1);
-}
-
-static void gen_ldst_pair(DisasContext *ctx, uint32_t opc, int rd,
- int base, int16_t offset)
-{
- TCGv t0, t1;
-
- if (ctx->hflags & MIPS_HFLAG_BMASK || rd == 31) {
- gen_reserved_instruction(ctx);
- return;
- }
-
- t0 = tcg_temp_new();
- t1 = tcg_temp_new();
-
- gen_base_offset_addr(ctx, t0, base, offset);
-
- switch (opc) {
- case LWP:
- if (rd == base) {
- gen_reserved_instruction(ctx);
- return;
- }
- tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_TESL);
- gen_store_gpr(t1, rd);
- tcg_gen_movi_tl(t1, 4);
- gen_op_addr_add(ctx, t0, t0, t1);
- tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_TESL);
- gen_store_gpr(t1, rd + 1);
- break;
- case SWP:
- gen_load_gpr(t1, rd);
- tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUL);
- tcg_gen_movi_tl(t1, 4);
- gen_op_addr_add(ctx, t0, t0, t1);
- gen_load_gpr(t1, rd + 1);
- tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUL);
- break;
-#ifdef TARGET_MIPS64
- case LDP:
- if (rd == base) {
- gen_reserved_instruction(ctx);
- return;
- }
- tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_TEQ);
- gen_store_gpr(t1, rd);
- tcg_gen_movi_tl(t1, 8);
- gen_op_addr_add(ctx, t0, t0, t1);
- tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_TEQ);
- gen_store_gpr(t1, rd + 1);
- break;
- case SDP:
- gen_load_gpr(t1, rd);
- tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEQ);
- tcg_gen_movi_tl(t1, 8);
- gen_op_addr_add(ctx, t0, t0, t1);
- gen_load_gpr(t1, rd + 1);
- tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEQ);
- break;
-#endif
- }
- tcg_temp_free(t0);
- tcg_temp_free(t1);
-}
-
-static void gen_sync(int stype)
-{
- TCGBar tcg_mo = TCG_BAR_SC;
-
- switch (stype) {
- case 0x4: /* SYNC_WMB */
- tcg_mo |= TCG_MO_ST_ST;
- break;
- case 0x10: /* SYNC_MB */
- tcg_mo |= TCG_MO_ALL;
- break;
- case 0x11: /* SYNC_ACQUIRE */
- tcg_mo |= TCG_MO_LD_LD | TCG_MO_LD_ST;
- break;
- case 0x12: /* SYNC_RELEASE */
- tcg_mo |= TCG_MO_ST_ST | TCG_MO_LD_ST;
- break;
- case 0x13: /* SYNC_RMB */
- tcg_mo |= TCG_MO_LD_LD;
- break;
- default:
- tcg_mo |= TCG_MO_ALL;
- break;
- }
-
- tcg_gen_mb(tcg_mo);
-}
-
-static void gen_pool32axf(CPUMIPSState *env, DisasContext *ctx, int rt, int rs)
-{
- int extension = (ctx->opcode >> 6) & 0x3f;
- int minor = (ctx->opcode >> 12) & 0xf;
- uint32_t mips32_op;
-
- switch (extension) {
- case TEQ:
- mips32_op = OPC_TEQ;
- goto do_trap;
- case TGE:
- mips32_op = OPC_TGE;
- goto do_trap;
- case TGEU:
- mips32_op = OPC_TGEU;
- goto do_trap;
- case TLT:
- mips32_op = OPC_TLT;
- goto do_trap;
- case TLTU:
- mips32_op = OPC_TLTU;
- goto do_trap;
- case TNE:
- mips32_op = OPC_TNE;
- do_trap:
- gen_trap(ctx, mips32_op, rs, rt, -1);
- break;
-#ifndef CONFIG_USER_ONLY
- case MFC0:
- case MFC0 + 32:
- check_cp0_enabled(ctx);
- if (rt == 0) {
- /* Treat as NOP. */
- break;
- }
- gen_mfc0(ctx, cpu_gpr[rt], rs, (ctx->opcode >> 11) & 0x7);
- break;
- case MTC0:
- case MTC0 + 32:
- check_cp0_enabled(ctx);
- {
- TCGv t0 = tcg_temp_new();
-
- gen_load_gpr(t0, rt);
- gen_mtc0(ctx, t0, rs, (ctx->opcode >> 11) & 0x7);
- tcg_temp_free(t0);
- }
- break;
-#endif
- case 0x2a:
- switch (minor & 3) {
- case MADD_ACC:
- gen_muldiv(ctx, OPC_MADD, (ctx->opcode >> 14) & 3, rs, rt);
- break;
- case MADDU_ACC:
- gen_muldiv(ctx, OPC_MADDU, (ctx->opcode >> 14) & 3, rs, rt);
- break;
- case MSUB_ACC:
- gen_muldiv(ctx, OPC_MSUB, (ctx->opcode >> 14) & 3, rs, rt);
- break;
- case MSUBU_ACC:
- gen_muldiv(ctx, OPC_MSUBU, (ctx->opcode >> 14) & 3, rs, rt);
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
- case 0x32:
- switch (minor & 3) {
- case MULT_ACC:
- gen_muldiv(ctx, OPC_MULT, (ctx->opcode >> 14) & 3, rs, rt);
- break;
- case MULTU_ACC:
- gen_muldiv(ctx, OPC_MULTU, (ctx->opcode >> 14) & 3, rs, rt);
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
- case 0x2c:
- switch (minor) {
- case BITSWAP:
- check_insn(ctx, ISA_MIPS_R6);
- gen_bitswap(ctx, OPC_BITSWAP, rs, rt);
- break;
- case SEB:
- gen_bshfl(ctx, OPC_SEB, rs, rt);
- break;
- case SEH:
- gen_bshfl(ctx, OPC_SEH, rs, rt);
- break;
- case CLO:
- mips32_op = OPC_CLO;
- goto do_cl;
- case CLZ:
- mips32_op = OPC_CLZ;
- do_cl:
- check_insn(ctx, ISA_MIPS_R1);
- gen_cl(ctx, mips32_op, rt, rs);
- break;
- case RDHWR:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_rdhwr(ctx, rt, rs, 0);
- break;
- case WSBH:
- gen_bshfl(ctx, OPC_WSBH, rs, rt);
- break;
- case MULT:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MULT;
- goto do_mul;
- case MULTU:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MULTU;
- goto do_mul;
- case DIV:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_DIV;
- goto do_div;
- case DIVU:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_DIVU;
- goto do_div;
- do_div:
- check_insn(ctx, ISA_MIPS_R1);
- gen_muldiv(ctx, mips32_op, 0, rs, rt);
- break;
- case MADD:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MADD;
- goto do_mul;
- case MADDU:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MADDU;
- goto do_mul;
- case MSUB:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MSUB;
- goto do_mul;
- case MSUBU:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MSUBU;
- do_mul:
- check_insn(ctx, ISA_MIPS_R1);
- gen_muldiv(ctx, mips32_op, 0, rs, rt);
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
- case 0x34:
- switch (minor) {
- case MFC2:
- case MTC2:
- case MFHC2:
- case MTHC2:
- case CFC2:
- case CTC2:
- generate_exception_err(ctx, EXCP_CpU, 2);
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
- case 0x3c:
- switch (minor) {
- case JALR: /* JALRC */
- case JALR_HB: /* JALRC_HB */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* JALRC, JALRC_HB */
- gen_compute_branch(ctx, OPC_JALR, 4, rs, rt, 0, 0);
- } else {
- /* JALR, JALR_HB */
- gen_compute_branch(ctx, OPC_JALR, 4, rs, rt, 0, 4);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- }
- break;
- case JALRS:
- case JALRS_HB:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, OPC_JALR, 4, rs, rt, 0, 2);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
- case 0x05:
- switch (minor) {
- case RDPGPR:
- check_cp0_enabled(ctx);
- check_insn(ctx, ISA_MIPS_R2);
- gen_load_srsgpr(rs, rt);
- break;
- case WRPGPR:
- check_cp0_enabled(ctx);
- check_insn(ctx, ISA_MIPS_R2);
- gen_store_srsgpr(rs, rt);
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
-#ifndef CONFIG_USER_ONLY
- case 0x0d:
- switch (minor) {
- case TLBP:
- mips32_op = OPC_TLBP;
- goto do_cp0;
- case TLBR:
- mips32_op = OPC_TLBR;
- goto do_cp0;
- case TLBWI:
- mips32_op = OPC_TLBWI;
- goto do_cp0;
- case TLBWR:
- mips32_op = OPC_TLBWR;
- goto do_cp0;
- case TLBINV:
- mips32_op = OPC_TLBINV;
- goto do_cp0;
- case TLBINVF:
- mips32_op = OPC_TLBINVF;
- goto do_cp0;
- case WAIT:
- mips32_op = OPC_WAIT;
- goto do_cp0;
- case DERET:
- mips32_op = OPC_DERET;
- goto do_cp0;
- case ERET:
- mips32_op = OPC_ERET;
- do_cp0:
- gen_cp0(env, ctx, mips32_op, rt, rs);
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
- case 0x1d:
- switch (minor) {
- case DI:
- check_cp0_enabled(ctx);
- {
- TCGv t0 = tcg_temp_new();
-
- save_cpu_state(ctx, 1);
- gen_helper_di(t0, cpu_env);
- gen_store_gpr(t0, rs);
- /*
- * Stop translation as we may have switched the execution
- * mode.
- */
- ctx->base.is_jmp = DISAS_STOP;
- tcg_temp_free(t0);
- }
- break;
- case EI:
- check_cp0_enabled(ctx);
- {
- TCGv t0 = tcg_temp_new();
-
- save_cpu_state(ctx, 1);
- gen_helper_ei(t0, cpu_env);
- gen_store_gpr(t0, rs);
- /*
- * DISAS_STOP isn't sufficient, we need to ensure we break out
- * of translated code to check for pending interrupts.
- */
- gen_save_pc(ctx->base.pc_next + 4);
- ctx->base.is_jmp = DISAS_EXIT;
- tcg_temp_free(t0);
- }
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
-#endif
- case 0x2d:
- switch (minor) {
- case SYNC:
- gen_sync(extract32(ctx->opcode, 16, 5));
- break;
- case SYSCALL:
- generate_exception_end(ctx, EXCP_SYSCALL);
- break;
- case SDBBP:
- if (is_uhi(extract32(ctx->opcode, 16, 10))) {
- gen_helper_do_semihosting(cpu_env);
- } else {
- check_insn(ctx, ISA_MIPS_R1);
- if (ctx->hflags & MIPS_HFLAG_SBRI) {
- gen_reserved_instruction(ctx);
- } else {
- generate_exception_end(ctx, EXCP_DBp);
- }
- }
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
- case 0x01:
- switch (minor & 3) {
- case MFHI_ACC:
- gen_HILO(ctx, OPC_MFHI, minor >> 2, rs);
- break;
- case MFLO_ACC:
- gen_HILO(ctx, OPC_MFLO, minor >> 2, rs);
- break;
- case MTHI_ACC:
- gen_HILO(ctx, OPC_MTHI, minor >> 2, rs);
- break;
- case MTLO_ACC:
- gen_HILO(ctx, OPC_MTLO, minor >> 2, rs);
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
- case 0x35:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- switch (minor) {
- case MFHI32:
- gen_HILO(ctx, OPC_MFHI, 0, rs);
- break;
- case MFLO32:
- gen_HILO(ctx, OPC_MFLO, 0, rs);
- break;
- case MTHI32:
- gen_HILO(ctx, OPC_MTHI, 0, rs);
- break;
- case MTLO32:
- gen_HILO(ctx, OPC_MTLO, 0, rs);
- break;
- default:
- goto pool32axf_invalid;
- }
- break;
- default:
- pool32axf_invalid:
- MIPS_INVAL("pool32axf");
- gen_reserved_instruction(ctx);
- break;
- }
-}
-
-/*
- * Values for microMIPS fmt field. Variable-width, depending on which
- * formats the instruction supports.
- */
-enum {
- FMT_SD_S = 0,
- FMT_SD_D = 1,
-
- FMT_SDPS_S = 0,
- FMT_SDPS_D = 1,
- FMT_SDPS_PS = 2,
-
- FMT_SWL_S = 0,
- FMT_SWL_W = 1,
- FMT_SWL_L = 2,
-
- FMT_DWL_D = 0,
- FMT_DWL_W = 1,
- FMT_DWL_L = 2
-};
-
-static void gen_pool32fxf(DisasContext *ctx, int rt, int rs)
-{
- int extension = (ctx->opcode >> 6) & 0x3ff;
- uint32_t mips32_op;
-
-#define FLOAT_1BIT_FMT(opc, fmt) ((fmt << 8) | opc)
-#define FLOAT_2BIT_FMT(opc, fmt) ((fmt << 7) | opc)
-#define COND_FLOAT_MOV(opc, cond) ((cond << 7) | opc)
-
- switch (extension) {
- case FLOAT_1BIT_FMT(CFC1, 0):
- mips32_op = OPC_CFC1;
- goto do_cp1;
- case FLOAT_1BIT_FMT(CTC1, 0):
- mips32_op = OPC_CTC1;
- goto do_cp1;
- case FLOAT_1BIT_FMT(MFC1, 0):
- mips32_op = OPC_MFC1;
- goto do_cp1;
- case FLOAT_1BIT_FMT(MTC1, 0):
- mips32_op = OPC_MTC1;
- goto do_cp1;
- case FLOAT_1BIT_FMT(MFHC1, 0):
- mips32_op = OPC_MFHC1;
- goto do_cp1;
- case FLOAT_1BIT_FMT(MTHC1, 0):
- mips32_op = OPC_MTHC1;
- do_cp1:
- gen_cp1(ctx, mips32_op, rt, rs);
- break;
-
- /* Reciprocal square root */
- case FLOAT_1BIT_FMT(RSQRT_FMT, FMT_SD_S):
- mips32_op = OPC_RSQRT_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(RSQRT_FMT, FMT_SD_D):
- mips32_op = OPC_RSQRT_D;
- goto do_unaryfp;
-
- /* Square root */
- case FLOAT_1BIT_FMT(SQRT_FMT, FMT_SD_S):
- mips32_op = OPC_SQRT_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(SQRT_FMT, FMT_SD_D):
- mips32_op = OPC_SQRT_D;
- goto do_unaryfp;
-
- /* Reciprocal */
- case FLOAT_1BIT_FMT(RECIP_FMT, FMT_SD_S):
- mips32_op = OPC_RECIP_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(RECIP_FMT, FMT_SD_D):
- mips32_op = OPC_RECIP_D;
- goto do_unaryfp;
-
- /* Floor */
- case FLOAT_1BIT_FMT(FLOOR_L, FMT_SD_S):
- mips32_op = OPC_FLOOR_L_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(FLOOR_L, FMT_SD_D):
- mips32_op = OPC_FLOOR_L_D;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(FLOOR_W, FMT_SD_S):
- mips32_op = OPC_FLOOR_W_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(FLOOR_W, FMT_SD_D):
- mips32_op = OPC_FLOOR_W_D;
- goto do_unaryfp;
-
- /* Ceiling */
- case FLOAT_1BIT_FMT(CEIL_L, FMT_SD_S):
- mips32_op = OPC_CEIL_L_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(CEIL_L, FMT_SD_D):
- mips32_op = OPC_CEIL_L_D;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(CEIL_W, FMT_SD_S):
- mips32_op = OPC_CEIL_W_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(CEIL_W, FMT_SD_D):
- mips32_op = OPC_CEIL_W_D;
- goto do_unaryfp;
-
- /* Truncation */
- case FLOAT_1BIT_FMT(TRUNC_L, FMT_SD_S):
- mips32_op = OPC_TRUNC_L_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(TRUNC_L, FMT_SD_D):
- mips32_op = OPC_TRUNC_L_D;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(TRUNC_W, FMT_SD_S):
- mips32_op = OPC_TRUNC_W_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(TRUNC_W, FMT_SD_D):
- mips32_op = OPC_TRUNC_W_D;
- goto do_unaryfp;
-
- /* Round */
- case FLOAT_1BIT_FMT(ROUND_L, FMT_SD_S):
- mips32_op = OPC_ROUND_L_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(ROUND_L, FMT_SD_D):
- mips32_op = OPC_ROUND_L_D;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(ROUND_W, FMT_SD_S):
- mips32_op = OPC_ROUND_W_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(ROUND_W, FMT_SD_D):
- mips32_op = OPC_ROUND_W_D;
- goto do_unaryfp;
-
- /* Integer to floating-point conversion */
- case FLOAT_1BIT_FMT(CVT_L, FMT_SD_S):
- mips32_op = OPC_CVT_L_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(CVT_L, FMT_SD_D):
- mips32_op = OPC_CVT_L_D;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(CVT_W, FMT_SD_S):
- mips32_op = OPC_CVT_W_S;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(CVT_W, FMT_SD_D):
- mips32_op = OPC_CVT_W_D;
- goto do_unaryfp;
-
- /* Paired-foo conversions */
- case FLOAT_1BIT_FMT(CVT_S_PL, 0):
- mips32_op = OPC_CVT_S_PL;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(CVT_S_PU, 0):
- mips32_op = OPC_CVT_S_PU;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(CVT_PW_PS, 0):
- mips32_op = OPC_CVT_PW_PS;
- goto do_unaryfp;
- case FLOAT_1BIT_FMT(CVT_PS_PW, 0):
- mips32_op = OPC_CVT_PS_PW;
- goto do_unaryfp;
-
- /* Floating-point moves */
- case FLOAT_2BIT_FMT(MOV_FMT, FMT_SDPS_S):
- mips32_op = OPC_MOV_S;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(MOV_FMT, FMT_SDPS_D):
- mips32_op = OPC_MOV_D;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(MOV_FMT, FMT_SDPS_PS):
- mips32_op = OPC_MOV_PS;
- goto do_unaryfp;
-
- /* Absolute value */
- case FLOAT_2BIT_FMT(ABS_FMT, FMT_SDPS_S):
- mips32_op = OPC_ABS_S;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(ABS_FMT, FMT_SDPS_D):
- mips32_op = OPC_ABS_D;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(ABS_FMT, FMT_SDPS_PS):
- mips32_op = OPC_ABS_PS;
- goto do_unaryfp;
-
- /* Negation */
- case FLOAT_2BIT_FMT(NEG_FMT, FMT_SDPS_S):
- mips32_op = OPC_NEG_S;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(NEG_FMT, FMT_SDPS_D):
- mips32_op = OPC_NEG_D;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(NEG_FMT, FMT_SDPS_PS):
- mips32_op = OPC_NEG_PS;
- goto do_unaryfp;
-
- /* Reciprocal square root step */
- case FLOAT_2BIT_FMT(RSQRT1_FMT, FMT_SDPS_S):
- mips32_op = OPC_RSQRT1_S;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(RSQRT1_FMT, FMT_SDPS_D):
- mips32_op = OPC_RSQRT1_D;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(RSQRT1_FMT, FMT_SDPS_PS):
- mips32_op = OPC_RSQRT1_PS;
- goto do_unaryfp;
-
- /* Reciprocal step */
- case FLOAT_2BIT_FMT(RECIP1_FMT, FMT_SDPS_S):
- mips32_op = OPC_RECIP1_S;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(RECIP1_FMT, FMT_SDPS_D):
- mips32_op = OPC_RECIP1_S;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(RECIP1_FMT, FMT_SDPS_PS):
- mips32_op = OPC_RECIP1_PS;
- goto do_unaryfp;
-
- /* Conversions from double */
- case FLOAT_2BIT_FMT(CVT_D, FMT_SWL_S):
- mips32_op = OPC_CVT_D_S;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(CVT_D, FMT_SWL_W):
- mips32_op = OPC_CVT_D_W;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(CVT_D, FMT_SWL_L):
- mips32_op = OPC_CVT_D_L;
- goto do_unaryfp;
-
- /* Conversions from single */
- case FLOAT_2BIT_FMT(CVT_S, FMT_DWL_D):
- mips32_op = OPC_CVT_S_D;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(CVT_S, FMT_DWL_W):
- mips32_op = OPC_CVT_S_W;
- goto do_unaryfp;
- case FLOAT_2BIT_FMT(CVT_S, FMT_DWL_L):
- mips32_op = OPC_CVT_S_L;
- do_unaryfp:
- gen_farith(ctx, mips32_op, -1, rs, rt, 0);
- break;
-
- /* Conditional moves on floating-point codes */
- case COND_FLOAT_MOV(MOVT, 0):
- case COND_FLOAT_MOV(MOVT, 1):
- case COND_FLOAT_MOV(MOVT, 2):
- case COND_FLOAT_MOV(MOVT, 3):
- case COND_FLOAT_MOV(MOVT, 4):
- case COND_FLOAT_MOV(MOVT, 5):
- case COND_FLOAT_MOV(MOVT, 6):
- case COND_FLOAT_MOV(MOVT, 7):
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_movci(ctx, rt, rs, (ctx->opcode >> 13) & 0x7, 1);
- break;
- case COND_FLOAT_MOV(MOVF, 0):
- case COND_FLOAT_MOV(MOVF, 1):
- case COND_FLOAT_MOV(MOVF, 2):
- case COND_FLOAT_MOV(MOVF, 3):
- case COND_FLOAT_MOV(MOVF, 4):
- case COND_FLOAT_MOV(MOVF, 5):
- case COND_FLOAT_MOV(MOVF, 6):
- case COND_FLOAT_MOV(MOVF, 7):
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_movci(ctx, rt, rs, (ctx->opcode >> 13) & 0x7, 0);
- break;
- default:
- MIPS_INVAL("pool32fxf");
- gen_reserved_instruction(ctx);
- break;
- }
-}
-
-static void decode_micromips32_opc(CPUMIPSState *env, DisasContext *ctx)
-{
- int32_t offset;
- uint16_t insn;
- int rt, rs, rd, rr;
- int16_t imm;
- uint32_t op, minor, minor2, mips32_op;
- uint32_t cond, fmt, cc;
-
- insn = translator_lduw(env, ctx->base.pc_next + 2);
- ctx->opcode = (ctx->opcode << 16) | insn;
-
- rt = (ctx->opcode >> 21) & 0x1f;
- rs = (ctx->opcode >> 16) & 0x1f;
- rd = (ctx->opcode >> 11) & 0x1f;
- rr = (ctx->opcode >> 6) & 0x1f;
- imm = (int16_t) ctx->opcode;
-
- op = (ctx->opcode >> 26) & 0x3f;
- switch (op) {
- case POOL32A:
- minor = ctx->opcode & 0x3f;
- switch (minor) {
- case 0x00:
- minor = (ctx->opcode >> 6) & 0xf;
- switch (minor) {
- case SLL32:
- mips32_op = OPC_SLL;
- goto do_shifti;
- case SRA:
- mips32_op = OPC_SRA;
- goto do_shifti;
- case SRL32:
- mips32_op = OPC_SRL;
- goto do_shifti;
- case ROTR:
- mips32_op = OPC_ROTR;
- do_shifti:
- gen_shift_imm(ctx, mips32_op, rt, rs, rd);
- break;
- case SELEQZ:
- check_insn(ctx, ISA_MIPS_R6);
- gen_cond_move(ctx, OPC_SELEQZ, rd, rs, rt);
- break;
- case SELNEZ:
- check_insn(ctx, ISA_MIPS_R6);
- gen_cond_move(ctx, OPC_SELNEZ, rd, rs, rt);
- break;
- case R6_RDHWR:
- check_insn(ctx, ISA_MIPS_R6);
- gen_rdhwr(ctx, rt, rs, extract32(ctx->opcode, 11, 3));
- break;
- default:
- goto pool32a_invalid;
- }
- break;
- case 0x10:
- minor = (ctx->opcode >> 6) & 0xf;
- switch (minor) {
- /* Arithmetic */
- case ADD:
- mips32_op = OPC_ADD;
- goto do_arith;
- case ADDU32:
- mips32_op = OPC_ADDU;
- goto do_arith;
- case SUB:
- mips32_op = OPC_SUB;
- goto do_arith;
- case SUBU32:
- mips32_op = OPC_SUBU;
- goto do_arith;
- case MUL:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MUL;
- do_arith:
- gen_arith(ctx, mips32_op, rd, rs, rt);
- break;
- /* Shifts */
- case SLLV:
- mips32_op = OPC_SLLV;
- goto do_shift;
- case SRLV:
- mips32_op = OPC_SRLV;
- goto do_shift;
- case SRAV:
- mips32_op = OPC_SRAV;
- goto do_shift;
- case ROTRV:
- mips32_op = OPC_ROTRV;
- do_shift:
- gen_shift(ctx, mips32_op, rd, rs, rt);
- break;
- /* Logical operations */
- case AND:
- mips32_op = OPC_AND;
- goto do_logic;
- case OR32:
- mips32_op = OPC_OR;
- goto do_logic;
- case NOR:
- mips32_op = OPC_NOR;
- goto do_logic;
- case XOR32:
- mips32_op = OPC_XOR;
- do_logic:
- gen_logic(ctx, mips32_op, rd, rs, rt);
- break;
- /* Set less than */
- case SLT:
- mips32_op = OPC_SLT;
- goto do_slt;
- case SLTU:
- mips32_op = OPC_SLTU;
- do_slt:
- gen_slt(ctx, mips32_op, rd, rs, rt);
- break;
- default:
- goto pool32a_invalid;
- }
- break;
- case 0x18:
- minor = (ctx->opcode >> 6) & 0xf;
- switch (minor) {
- /* Conditional moves */
- case MOVN: /* MUL */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* MUL */
- gen_r6_muldiv(ctx, R6_OPC_MUL, rd, rs, rt);
- } else {
- /* MOVN */
- gen_cond_move(ctx, OPC_MOVN, rd, rs, rt);
- }
- break;
- case MOVZ: /* MUH */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* MUH */
- gen_r6_muldiv(ctx, R6_OPC_MUH, rd, rs, rt);
- } else {
- /* MOVZ */
- gen_cond_move(ctx, OPC_MOVZ, rd, rs, rt);
- }
- break;
- case MULU:
- check_insn(ctx, ISA_MIPS_R6);
- gen_r6_muldiv(ctx, R6_OPC_MULU, rd, rs, rt);
- break;
- case MUHU:
- check_insn(ctx, ISA_MIPS_R6);
- gen_r6_muldiv(ctx, R6_OPC_MUHU, rd, rs, rt);
- break;
- case LWXS: /* DIV */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* DIV */
- gen_r6_muldiv(ctx, R6_OPC_DIV, rd, rs, rt);
- } else {
- /* LWXS */
- gen_ldxs(ctx, rs, rt, rd);
- }
- break;
- case MOD:
- check_insn(ctx, ISA_MIPS_R6);
- gen_r6_muldiv(ctx, R6_OPC_MOD, rd, rs, rt);
- break;
- case R6_DIVU:
- check_insn(ctx, ISA_MIPS_R6);
- gen_r6_muldiv(ctx, R6_OPC_DIVU, rd, rs, rt);
- break;
- case MODU:
- check_insn(ctx, ISA_MIPS_R6);
- gen_r6_muldiv(ctx, R6_OPC_MODU, rd, rs, rt);
- break;
- default:
- goto pool32a_invalid;
- }
- break;
- case INS:
- gen_bitops(ctx, OPC_INS, rt, rs, rr, rd);
- return;
- case LSA:
- check_insn(ctx, ISA_MIPS_R6);
- gen_lsa(ctx, rd, rt, rs, extract32(ctx->opcode, 9, 2));
- break;
- case ALIGN:
- check_insn(ctx, ISA_MIPS_R6);
- gen_align(ctx, 32, rd, rs, rt, extract32(ctx->opcode, 9, 2));
- break;
- case EXT:
- gen_bitops(ctx, OPC_EXT, rt, rs, rr, rd);
- return;
- case POOL32AXF:
- gen_pool32axf(env, ctx, rt, rs);
- break;
- case BREAK32:
- generate_exception_end(ctx, EXCP_BREAK);
- break;
- case SIGRIE:
- check_insn(ctx, ISA_MIPS_R6);
- gen_reserved_instruction(ctx);
- break;
- default:
- pool32a_invalid:
- MIPS_INVAL("pool32a");
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case POOL32B:
- minor = (ctx->opcode >> 12) & 0xf;
- switch (minor) {
- case CACHE:
- check_cp0_enabled(ctx);
- if (ctx->hflags & MIPS_HFLAG_ITC_CACHE) {
- gen_cache_operation(ctx, rt, rs, imm);
- }
- break;
- case LWC2:
- case SWC2:
- /* COP2: Not implemented. */
- generate_exception_err(ctx, EXCP_CpU, 2);
- break;
-#ifdef TARGET_MIPS64
- case LDP:
- case SDP:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
-#endif
- /* fall through */
- case LWP:
- case SWP:
- gen_ldst_pair(ctx, minor, rt, rs, SIMM(ctx->opcode, 0, 12));
- break;
-#ifdef TARGET_MIPS64
- case LDM:
- case SDM:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
-#endif
- /* fall through */
- case LWM32:
- case SWM32:
- gen_ldst_multiple(ctx, minor, rt, rs, SIMM(ctx->opcode, 0, 12));
- break;
- default:
- MIPS_INVAL("pool32b");
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case POOL32F:
- if (ctx->CP0_Config1 & (1 << CP0C1_FP)) {
- minor = ctx->opcode & 0x3f;
- check_cp1_enabled(ctx);
- switch (minor) {
- case ALNV_PS:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_ALNV_PS;
- goto do_madd;
- case MADD_S:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MADD_S;
- goto do_madd;
- case MADD_D:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MADD_D;
- goto do_madd;
- case MADD_PS:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MADD_PS;
- goto do_madd;
- case MSUB_S:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MSUB_S;
- goto do_madd;
- case MSUB_D:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MSUB_D;
- goto do_madd;
- case MSUB_PS:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_MSUB_PS;
- goto do_madd;
- case NMADD_S:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_NMADD_S;
- goto do_madd;
- case NMADD_D:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_NMADD_D;
- goto do_madd;
- case NMADD_PS:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_NMADD_PS;
- goto do_madd;
- case NMSUB_S:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_NMSUB_S;
- goto do_madd;
- case NMSUB_D:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_NMSUB_D;
- goto do_madd;
- case NMSUB_PS:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_NMSUB_PS;
- do_madd:
- gen_flt3_arith(ctx, mips32_op, rd, rr, rs, rt);
- break;
- case CABS_COND_FMT:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- cond = (ctx->opcode >> 6) & 0xf;
- cc = (ctx->opcode >> 13) & 0x7;
- fmt = (ctx->opcode >> 10) & 0x3;
- switch (fmt) {
- case 0x0:
- gen_cmpabs_s(ctx, cond, rt, rs, cc);
- break;
- case 0x1:
- gen_cmpabs_d(ctx, cond, rt, rs, cc);
- break;
- case 0x2:
- gen_cmpabs_ps(ctx, cond, rt, rs, cc);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case C_COND_FMT:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- cond = (ctx->opcode >> 6) & 0xf;
- cc = (ctx->opcode >> 13) & 0x7;
- fmt = (ctx->opcode >> 10) & 0x3;
- switch (fmt) {
- case 0x0:
- gen_cmp_s(ctx, cond, rt, rs, cc);
- break;
- case 0x1:
- gen_cmp_d(ctx, cond, rt, rs, cc);
- break;
- case 0x2:
- gen_cmp_ps(ctx, cond, rt, rs, cc);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case CMP_CONDN_S:
- check_insn(ctx, ISA_MIPS_R6);
- gen_r6_cmp_s(ctx, (ctx->opcode >> 6) & 0x1f, rt, rs, rd);
- break;
- case CMP_CONDN_D:
- check_insn(ctx, ISA_MIPS_R6);
- gen_r6_cmp_d(ctx, (ctx->opcode >> 6) & 0x1f, rt, rs, rd);
- break;
- case POOL32FXF:
- gen_pool32fxf(ctx, rt, rs);
- break;
- case 0x00:
- /* PLL foo */
- switch ((ctx->opcode >> 6) & 0x7) {
- case PLL_PS:
- mips32_op = OPC_PLL_PS;
- goto do_ps;
- case PLU_PS:
- mips32_op = OPC_PLU_PS;
- goto do_ps;
- case PUL_PS:
- mips32_op = OPC_PUL_PS;
- goto do_ps;
- case PUU_PS:
- mips32_op = OPC_PUU_PS;
- goto do_ps;
- case CVT_PS_S:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_CVT_PS_S;
- do_ps:
- gen_farith(ctx, mips32_op, rt, rs, rd, 0);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case MIN_FMT:
- check_insn(ctx, ISA_MIPS_R6);
- switch ((ctx->opcode >> 9) & 0x3) {
- case FMT_SDPS_S:
- gen_farith(ctx, OPC_MIN_S, rt, rs, rd, 0);
- break;
- case FMT_SDPS_D:
- gen_farith(ctx, OPC_MIN_D, rt, rs, rd, 0);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case 0x08:
- /* [LS][WDU]XC1 */
- switch ((ctx->opcode >> 6) & 0x7) {
- case LWXC1:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_LWXC1;
- goto do_ldst_cp1;
- case SWXC1:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_SWXC1;
- goto do_ldst_cp1;
- case LDXC1:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_LDXC1;
- goto do_ldst_cp1;
- case SDXC1:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_SDXC1;
- goto do_ldst_cp1;
- case LUXC1:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_LUXC1;
- goto do_ldst_cp1;
- case SUXC1:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_SUXC1;
- do_ldst_cp1:
- gen_flt3_ldst(ctx, mips32_op, rd, rd, rt, rs);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case MAX_FMT:
- check_insn(ctx, ISA_MIPS_R6);
- switch ((ctx->opcode >> 9) & 0x3) {
- case FMT_SDPS_S:
- gen_farith(ctx, OPC_MAX_S, rt, rs, rd, 0);
- break;
- case FMT_SDPS_D:
- gen_farith(ctx, OPC_MAX_D, rt, rs, rd, 0);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case 0x18:
- /* 3D insns */
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- fmt = (ctx->opcode >> 9) & 0x3;
- switch ((ctx->opcode >> 6) & 0x7) {
- case RSQRT2_FMT:
- switch (fmt) {
- case FMT_SDPS_S:
- mips32_op = OPC_RSQRT2_S;
- goto do_3d;
- case FMT_SDPS_D:
- mips32_op = OPC_RSQRT2_D;
- goto do_3d;
- case FMT_SDPS_PS:
- mips32_op = OPC_RSQRT2_PS;
- goto do_3d;
- default:
- goto pool32f_invalid;
- }
- break;
- case RECIP2_FMT:
- switch (fmt) {
- case FMT_SDPS_S:
- mips32_op = OPC_RECIP2_S;
- goto do_3d;
- case FMT_SDPS_D:
- mips32_op = OPC_RECIP2_D;
- goto do_3d;
- case FMT_SDPS_PS:
- mips32_op = OPC_RECIP2_PS;
- goto do_3d;
- default:
- goto pool32f_invalid;
- }
- break;
- case ADDR_PS:
- mips32_op = OPC_ADDR_PS;
- goto do_3d;
- case MULR_PS:
- mips32_op = OPC_MULR_PS;
- do_3d:
- gen_farith(ctx, mips32_op, rt, rs, rd, 0);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case 0x20:
- /* MOV[FT].fmt, PREFX, RINT.fmt, CLASS.fmt*/
- cc = (ctx->opcode >> 13) & 0x7;
- fmt = (ctx->opcode >> 9) & 0x3;
- switch ((ctx->opcode >> 6) & 0x7) {
- case MOVF_FMT: /* RINT_FMT */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* RINT_FMT */
- switch (fmt) {
- case FMT_SDPS_S:
- gen_farith(ctx, OPC_RINT_S, 0, rt, rs, 0);
- break;
- case FMT_SDPS_D:
- gen_farith(ctx, OPC_RINT_D, 0, rt, rs, 0);
- break;
- default:
- goto pool32f_invalid;
- }
- } else {
- /* MOVF_FMT */
- switch (fmt) {
- case FMT_SDPS_S:
- gen_movcf_s(ctx, rs, rt, cc, 0);
- break;
- case FMT_SDPS_D:
- gen_movcf_d(ctx, rs, rt, cc, 0);
- break;
- case FMT_SDPS_PS:
- check_ps(ctx);
- gen_movcf_ps(ctx, rs, rt, cc, 0);
- break;
- default:
- goto pool32f_invalid;
- }
- }
- break;
- case MOVT_FMT: /* CLASS_FMT */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* CLASS_FMT */
- switch (fmt) {
- case FMT_SDPS_S:
- gen_farith(ctx, OPC_CLASS_S, 0, rt, rs, 0);
- break;
- case FMT_SDPS_D:
- gen_farith(ctx, OPC_CLASS_D, 0, rt, rs, 0);
- break;
- default:
- goto pool32f_invalid;
- }
- } else {
- /* MOVT_FMT */
- switch (fmt) {
- case FMT_SDPS_S:
- gen_movcf_s(ctx, rs, rt, cc, 1);
- break;
- case FMT_SDPS_D:
- gen_movcf_d(ctx, rs, rt, cc, 1);
- break;
- case FMT_SDPS_PS:
- check_ps(ctx);
- gen_movcf_ps(ctx, rs, rt, cc, 1);
- break;
- default:
- goto pool32f_invalid;
- }
- }
- break;
- case PREFX:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
-#define FINSN_3ARG_SDPS(prfx) \
- switch ((ctx->opcode >> 8) & 0x3) { \
- case FMT_SDPS_S: \
- mips32_op = OPC_##prfx##_S; \
- goto do_fpop; \
- case FMT_SDPS_D: \
- mips32_op = OPC_##prfx##_D; \
- goto do_fpop; \
- case FMT_SDPS_PS: \
- check_ps(ctx); \
- mips32_op = OPC_##prfx##_PS; \
- goto do_fpop; \
- default: \
- goto pool32f_invalid; \
- }
- case MINA_FMT:
- check_insn(ctx, ISA_MIPS_R6);
- switch ((ctx->opcode >> 9) & 0x3) {
- case FMT_SDPS_S:
- gen_farith(ctx, OPC_MINA_S, rt, rs, rd, 0);
- break;
- case FMT_SDPS_D:
- gen_farith(ctx, OPC_MINA_D, rt, rs, rd, 0);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case MAXA_FMT:
- check_insn(ctx, ISA_MIPS_R6);
- switch ((ctx->opcode >> 9) & 0x3) {
- case FMT_SDPS_S:
- gen_farith(ctx, OPC_MAXA_S, rt, rs, rd, 0);
- break;
- case FMT_SDPS_D:
- gen_farith(ctx, OPC_MAXA_D, rt, rs, rd, 0);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case 0x30:
- /* regular FP ops */
- switch ((ctx->opcode >> 6) & 0x3) {
- case ADD_FMT:
- FINSN_3ARG_SDPS(ADD);
- break;
- case SUB_FMT:
- FINSN_3ARG_SDPS(SUB);
- break;
- case MUL_FMT:
- FINSN_3ARG_SDPS(MUL);
- break;
- case DIV_FMT:
- fmt = (ctx->opcode >> 8) & 0x3;
- if (fmt == 1) {
- mips32_op = OPC_DIV_D;
- } else if (fmt == 0) {
- mips32_op = OPC_DIV_S;
- } else {
- goto pool32f_invalid;
- }
- goto do_fpop;
- default:
- goto pool32f_invalid;
- }
- break;
- case 0x38:
- /* cmovs */
- switch ((ctx->opcode >> 6) & 0x7) {
- case MOVN_FMT: /* SELEQZ_FMT */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* SELEQZ_FMT */
- switch ((ctx->opcode >> 9) & 0x3) {
- case FMT_SDPS_S:
- gen_sel_s(ctx, OPC_SELEQZ_S, rd, rt, rs);
- break;
- case FMT_SDPS_D:
- gen_sel_d(ctx, OPC_SELEQZ_D, rd, rt, rs);
- break;
- default:
- goto pool32f_invalid;
- }
- } else {
- /* MOVN_FMT */
- FINSN_3ARG_SDPS(MOVN);
- }
- break;
- case MOVN_FMT_04:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- FINSN_3ARG_SDPS(MOVN);
- break;
- case MOVZ_FMT: /* SELNEZ_FMT */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* SELNEZ_FMT */
- switch ((ctx->opcode >> 9) & 0x3) {
- case FMT_SDPS_S:
- gen_sel_s(ctx, OPC_SELNEZ_S, rd, rt, rs);
- break;
- case FMT_SDPS_D:
- gen_sel_d(ctx, OPC_SELNEZ_D, rd, rt, rs);
- break;
- default:
- goto pool32f_invalid;
- }
- } else {
- /* MOVZ_FMT */
- FINSN_3ARG_SDPS(MOVZ);
- }
- break;
- case MOVZ_FMT_05:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- FINSN_3ARG_SDPS(MOVZ);
- break;
- case SEL_FMT:
- check_insn(ctx, ISA_MIPS_R6);
- switch ((ctx->opcode >> 9) & 0x3) {
- case FMT_SDPS_S:
- gen_sel_s(ctx, OPC_SEL_S, rd, rt, rs);
- break;
- case FMT_SDPS_D:
- gen_sel_d(ctx, OPC_SEL_D, rd, rt, rs);
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- case MADDF_FMT:
- check_insn(ctx, ISA_MIPS_R6);
- switch ((ctx->opcode >> 9) & 0x3) {
- case FMT_SDPS_S:
- mips32_op = OPC_MADDF_S;
- goto do_fpop;
- case FMT_SDPS_D:
- mips32_op = OPC_MADDF_D;
- goto do_fpop;
- default:
- goto pool32f_invalid;
- }
- break;
- case MSUBF_FMT:
- check_insn(ctx, ISA_MIPS_R6);
- switch ((ctx->opcode >> 9) & 0x3) {
- case FMT_SDPS_S:
- mips32_op = OPC_MSUBF_S;
- goto do_fpop;
- case FMT_SDPS_D:
- mips32_op = OPC_MSUBF_D;
- goto do_fpop;
- default:
- goto pool32f_invalid;
- }
- break;
- default:
- goto pool32f_invalid;
- }
- break;
- do_fpop:
- gen_farith(ctx, mips32_op, rt, rs, rd, 0);
- break;
- default:
- pool32f_invalid:
- MIPS_INVAL("pool32f");
- gen_reserved_instruction(ctx);
- break;
- }
- } else {
- generate_exception_err(ctx, EXCP_CpU, 1);
- }
- break;
- case POOL32I:
- minor = (ctx->opcode >> 21) & 0x1f;
- switch (minor) {
- case BLTZ:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, OPC_BLTZ, 4, rs, -1, imm << 1, 4);
- break;
- case BLTZAL:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, OPC_BLTZAL, 4, rs, -1, imm << 1, 4);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- break;
- case BLTZALS:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, OPC_BLTZAL, 4, rs, -1, imm << 1, 2);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- break;
- case BGEZ:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, OPC_BGEZ, 4, rs, -1, imm << 1, 4);
- break;
- case BGEZAL:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, OPC_BGEZAL, 4, rs, -1, imm << 1, 4);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- break;
- case BGEZALS:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, OPC_BGEZAL, 4, rs, -1, imm << 1, 2);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- break;
- case BLEZ:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, OPC_BLEZ, 4, rs, -1, imm << 1, 4);
- break;
- case BGTZ:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, OPC_BGTZ, 4, rs, -1, imm << 1, 4);
- break;
-
- /* Traps */
- case TLTI: /* BC1EQZC */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* BC1EQZC */
- check_cp1_enabled(ctx);
- gen_compute_branch1_r6(ctx, OPC_BC1EQZ, rs, imm << 1, 0);
- } else {
- /* TLTI */
- mips32_op = OPC_TLTI;
- goto do_trapi;
- }
- break;
- case TGEI: /* BC1NEZC */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* BC1NEZC */
- check_cp1_enabled(ctx);
- gen_compute_branch1_r6(ctx, OPC_BC1NEZ, rs, imm << 1, 0);
- } else {
- /* TGEI */
- mips32_op = OPC_TGEI;
- goto do_trapi;
- }
- break;
- case TLTIU:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_TLTIU;
- goto do_trapi;
- case TGEIU:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_TGEIU;
- goto do_trapi;
- case TNEI: /* SYNCI */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* SYNCI */
- /*
- * Break the TB to be able to sync copied instructions
- * immediately.
- */
- ctx->base.is_jmp = DISAS_STOP;
- } else {
- /* TNEI */
- mips32_op = OPC_TNEI;
- goto do_trapi;
- }
- break;
- case TEQI:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_TEQI;
- do_trapi:
- gen_trap(ctx, mips32_op, rs, -1, imm);
- break;
-
- case BNEZC:
- case BEQZC:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_compute_branch(ctx, minor == BNEZC ? OPC_BNE : OPC_BEQ,
- 4, rs, 0, imm << 1, 0);
- /*
- * Compact branches don't have a delay slot, so just let
- * the normal delay slot handling take us to the branch
- * target.
- */
- break;
- case LUI:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- gen_logic_imm(ctx, OPC_LUI, rs, 0, imm);
- break;
- case SYNCI:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- /*
- * Break the TB to be able to sync copied instructions
- * immediately.
- */
- ctx->base.is_jmp = DISAS_STOP;
- break;
- case BC2F:
- case BC2T:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- /* COP2: Not implemented. */
- generate_exception_err(ctx, EXCP_CpU, 2);
- break;
- case BC1F:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = (ctx->opcode & (1 << 16)) ? OPC_BC1FANY2 : OPC_BC1F;
- goto do_cp1branch;
- case BC1T:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = (ctx->opcode & (1 << 16)) ? OPC_BC1TANY2 : OPC_BC1T;
- goto do_cp1branch;
- case BC1ANY4F:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_BC1FANY4;
- goto do_cp1mips3d;
- case BC1ANY4T:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_BC1TANY4;
- do_cp1mips3d:
- check_cop1x(ctx);
- check_insn(ctx, ASE_MIPS3D);
- /* Fall through */
- do_cp1branch:
- if (env->CP0_Config1 & (1 << CP0C1_FP)) {
- check_cp1_enabled(ctx);
- gen_compute_branch1(ctx, mips32_op,
- (ctx->opcode >> 18) & 0x7, imm << 1);
- } else {
- generate_exception_err(ctx, EXCP_CpU, 1);
- }
- break;
- case BPOSGE64:
- case BPOSGE32:
- /* MIPS DSP: not implemented */
- /* Fall through */
- default:
- MIPS_INVAL("pool32i");
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case POOL32C:
- minor = (ctx->opcode >> 12) & 0xf;
- offset = sextract32(ctx->opcode, 0,
- (ctx->insn_flags & ISA_MIPS_R6) ? 9 : 12);
- switch (minor) {
- case LWL:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_LWL;
- goto do_ld_lr;
- case SWL:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_SWL;
- goto do_st_lr;
- case LWR:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_LWR;
- goto do_ld_lr;
- case SWR:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_SWR;
- goto do_st_lr;
-#if defined(TARGET_MIPS64)
- case LDL:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_LDL;
- goto do_ld_lr;
- case SDL:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_SDL;
- goto do_st_lr;
- case LDR:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_LDR;
- goto do_ld_lr;
- case SDR:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_SDR;
- goto do_st_lr;
- case LWU:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- mips32_op = OPC_LWU;
- goto do_ld_lr;
- case LLD:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- mips32_op = OPC_LLD;
- goto do_ld_lr;
-#endif
- case LL:
- mips32_op = OPC_LL;
- goto do_ld_lr;
- do_ld_lr:
- gen_ld(ctx, mips32_op, rt, rs, offset);
- break;
- do_st_lr:
- gen_st(ctx, mips32_op, rt, rs, offset);
- break;
- case SC:
- gen_st_cond(ctx, rt, rs, offset, MO_TESL, false);
- break;
-#if defined(TARGET_MIPS64)
- case SCD:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- gen_st_cond(ctx, rt, rs, offset, MO_TEQ, false);
- break;
-#endif
- case LD_EVA:
- if (!ctx->eva) {
- MIPS_INVAL("pool32c ld-eva");
- gen_reserved_instruction(ctx);
- break;
- }
- check_cp0_enabled(ctx);
-
- minor2 = (ctx->opcode >> 9) & 0x7;
- offset = sextract32(ctx->opcode, 0, 9);
- switch (minor2) {
- case LBUE:
- mips32_op = OPC_LBUE;
- goto do_ld_lr;
- case LHUE:
- mips32_op = OPC_LHUE;
- goto do_ld_lr;
- case LWLE:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_LWLE;
- goto do_ld_lr;
- case LWRE:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_LWRE;
- goto do_ld_lr;
- case LBE:
- mips32_op = OPC_LBE;
- goto do_ld_lr;
- case LHE:
- mips32_op = OPC_LHE;
- goto do_ld_lr;
- case LLE:
- mips32_op = OPC_LLE;
- goto do_ld_lr;
- case LWE:
- mips32_op = OPC_LWE;
- goto do_ld_lr;
- };
- break;
- case ST_EVA:
- if (!ctx->eva) {
- MIPS_INVAL("pool32c st-eva");
- gen_reserved_instruction(ctx);
- break;
- }
- check_cp0_enabled(ctx);
-
- minor2 = (ctx->opcode >> 9) & 0x7;
- offset = sextract32(ctx->opcode, 0, 9);
- switch (minor2) {
- case SWLE:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_SWLE;
- goto do_st_lr;
- case SWRE:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- mips32_op = OPC_SWRE;
- goto do_st_lr;
- case PREFE:
- /* Treat as no-op */
- if ((ctx->insn_flags & ISA_MIPS_R6) && (rt >= 24)) {
- /* hint codes 24-31 are reserved and signal RI */
- generate_exception(ctx, EXCP_RI);
- }
- break;
- case CACHEE:
- /* Treat as no-op */
- if (ctx->hflags & MIPS_HFLAG_ITC_CACHE) {
- gen_cache_operation(ctx, rt, rs, offset);
- }
- break;
- case SBE:
- mips32_op = OPC_SBE;
- goto do_st_lr;
- case SHE:
- mips32_op = OPC_SHE;
- goto do_st_lr;
- case SCE:
- gen_st_cond(ctx, rt, rs, offset, MO_TESL, true);
- break;
- case SWE:
- mips32_op = OPC_SWE;
- goto do_st_lr;
- };
- break;
- case PREF:
- /* Treat as no-op */
- if ((ctx->insn_flags & ISA_MIPS_R6) && (rt >= 24)) {
- /* hint codes 24-31 are reserved and signal RI */
- generate_exception(ctx, EXCP_RI);
- }
- break;
- default:
- MIPS_INVAL("pool32c");
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case ADDI32: /* AUI, LUI */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* AUI, LUI */
- gen_logic_imm(ctx, OPC_LUI, rt, rs, imm);
- } else {
- /* ADDI32 */
- mips32_op = OPC_ADDI;
- goto do_addi;
- }
- break;
- case ADDIU32:
- mips32_op = OPC_ADDIU;
- do_addi:
- gen_arith_imm(ctx, mips32_op, rt, rs, imm);
- break;
-
- /* Logical operations */
- case ORI32:
- mips32_op = OPC_ORI;
- goto do_logici;
- case XORI32:
- mips32_op = OPC_XORI;
- goto do_logici;
- case ANDI32:
- mips32_op = OPC_ANDI;
- do_logici:
- gen_logic_imm(ctx, mips32_op, rt, rs, imm);
- break;
-
- /* Set less than immediate */
- case SLTI32:
- mips32_op = OPC_SLTI;
- goto do_slti;
- case SLTIU32:
- mips32_op = OPC_SLTIU;
- do_slti:
- gen_slt_imm(ctx, mips32_op, rt, rs, imm);
- break;
- case JALX32:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 2;
- gen_compute_branch(ctx, OPC_JALX, 4, rt, rs, offset, 4);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- break;
- case JALS32: /* BOVC, BEQC, BEQZALC */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- if (rs >= rt) {
- /* BOVC */
- mips32_op = OPC_BOVC;
- } else if (rs < rt && rs == 0) {
- /* BEQZALC */
- mips32_op = OPC_BEQZALC;
- } else {
- /* BEQC */
- mips32_op = OPC_BEQC;
- }
- gen_compute_compact_branch(ctx, mips32_op, rs, rt, imm << 1);
- } else {
- /* JALS32 */
- offset = (int32_t)(ctx->opcode & 0x3FFFFFF) << 1;
- gen_compute_branch(ctx, OPC_JAL, 4, rt, rs, offset, 2);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- }
- break;
- case BEQ32: /* BC */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* BC */
- gen_compute_compact_branch(ctx, OPC_BC, 0, 0,
- sextract32(ctx->opcode << 1, 0, 27));
- } else {
- /* BEQ32 */
- gen_compute_branch(ctx, OPC_BEQ, 4, rt, rs, imm << 1, 4);
- }
- break;
- case BNE32: /* BALC */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* BALC */
- gen_compute_compact_branch(ctx, OPC_BALC, 0, 0,
- sextract32(ctx->opcode << 1, 0, 27));
- } else {
- /* BNE32 */
- gen_compute_branch(ctx, OPC_BNE, 4, rt, rs, imm << 1, 4);
- }
- break;
- case J32: /* BGTZC, BLTZC, BLTC */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- if (rs == 0 && rt != 0) {
- /* BGTZC */
- mips32_op = OPC_BGTZC;
- } else if (rs != 0 && rt != 0 && rs == rt) {
- /* BLTZC */
- mips32_op = OPC_BLTZC;
- } else {
- /* BLTC */
- mips32_op = OPC_BLTC;
- }
- gen_compute_compact_branch(ctx, mips32_op, rs, rt, imm << 1);
- } else {
- /* J32 */
- gen_compute_branch(ctx, OPC_J, 4, rt, rs,
- (int32_t)(ctx->opcode & 0x3FFFFFF) << 1, 4);
- }
- break;
- case JAL32: /* BLEZC, BGEZC, BGEC */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- if (rs == 0 && rt != 0) {
- /* BLEZC */
- mips32_op = OPC_BLEZC;
- } else if (rs != 0 && rt != 0 && rs == rt) {
- /* BGEZC */
- mips32_op = OPC_BGEZC;
- } else {
- /* BGEC */
- mips32_op = OPC_BGEC;
- }
- gen_compute_compact_branch(ctx, mips32_op, rs, rt, imm << 1);
- } else {
- /* JAL32 */
- gen_compute_branch(ctx, OPC_JAL, 4, rt, rs,
- (int32_t)(ctx->opcode & 0x3FFFFFF) << 1, 4);
- ctx->hflags |= MIPS_HFLAG_BDS_STRICT;
- }
- break;
- /* Floating point (COP1) */
- case LWC132:
- mips32_op = OPC_LWC1;
- goto do_cop1;
- case LDC132:
- mips32_op = OPC_LDC1;
- goto do_cop1;
- case SWC132:
- mips32_op = OPC_SWC1;
- goto do_cop1;
- case SDC132:
- mips32_op = OPC_SDC1;
- do_cop1:
- gen_cop1_ldst(ctx, mips32_op, rt, rs, imm);
- break;
- case ADDIUPC: /* PCREL: ADDIUPC, AUIPC, ALUIPC, LWPC */
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /* PCREL: ADDIUPC, AUIPC, ALUIPC, LWPC */
- switch ((ctx->opcode >> 16) & 0x1f) {
- case ADDIUPC_00:
- case ADDIUPC_01:
- case ADDIUPC_02:
- case ADDIUPC_03:
- case ADDIUPC_04:
- case ADDIUPC_05:
- case ADDIUPC_06:
- case ADDIUPC_07:
- gen_pcrel(ctx, OPC_ADDIUPC, ctx->base.pc_next & ~0x3, rt);
- break;
- case AUIPC:
- gen_pcrel(ctx, OPC_AUIPC, ctx->base.pc_next, rt);
- break;
- case ALUIPC:
- gen_pcrel(ctx, OPC_ALUIPC, ctx->base.pc_next, rt);
- break;
- case LWPC_08:
- case LWPC_09:
- case LWPC_0A:
- case LWPC_0B:
- case LWPC_0C:
- case LWPC_0D:
- case LWPC_0E:
- case LWPC_0F:
- gen_pcrel(ctx, R6_OPC_LWPC, ctx->base.pc_next & ~0x3, rt);
- break;
- default:
- generate_exception(ctx, EXCP_RI);
- break;
- }
- } else {
- /* ADDIUPC */
- int reg = mmreg(ZIMM(ctx->opcode, 23, 3));
- offset = SIMM(ctx->opcode, 0, 23) << 2;
-
- gen_addiupc(ctx, reg, offset, 0, 0);
- }
- break;
- case BNVC: /* BNEC, BNEZALC */
- check_insn(ctx, ISA_MIPS_R6);
- if (rs >= rt) {
- /* BNVC */
- mips32_op = OPC_BNVC;
- } else if (rs < rt && rs == 0) {
- /* BNEZALC */
- mips32_op = OPC_BNEZALC;
- } else {
- /* BNEC */
- mips32_op = OPC_BNEC;
- }
- gen_compute_compact_branch(ctx, mips32_op, rs, rt, imm << 1);
- break;
- case R6_BNEZC: /* JIALC */
- check_insn(ctx, ISA_MIPS_R6);
- if (rt != 0) {
- /* BNEZC */
- gen_compute_compact_branch(ctx, OPC_BNEZC, rt, 0,
- sextract32(ctx->opcode << 1, 0, 22));
- } else {
- /* JIALC */
- gen_compute_compact_branch(ctx, OPC_JIALC, 0, rs, imm);
- }
- break;
- case R6_BEQZC: /* JIC */
- check_insn(ctx, ISA_MIPS_R6);
- if (rt != 0) {
- /* BEQZC */
- gen_compute_compact_branch(ctx, OPC_BEQZC, rt, 0,
- sextract32(ctx->opcode << 1, 0, 22));
- } else {
- /* JIC */
- gen_compute_compact_branch(ctx, OPC_JIC, 0, rs, imm);
- }
- break;
- case BLEZALC: /* BGEZALC, BGEUC */
- check_insn(ctx, ISA_MIPS_R6);
- if (rs == 0 && rt != 0) {
- /* BLEZALC */
- mips32_op = OPC_BLEZALC;
- } else if (rs != 0 && rt != 0 && rs == rt) {
- /* BGEZALC */
- mips32_op = OPC_BGEZALC;
- } else {
- /* BGEUC */
- mips32_op = OPC_BGEUC;
- }
- gen_compute_compact_branch(ctx, mips32_op, rs, rt, imm << 1);
- break;
- case BGTZALC: /* BLTZALC, BLTUC */
- check_insn(ctx, ISA_MIPS_R6);
- if (rs == 0 && rt != 0) {
- /* BGTZALC */
- mips32_op = OPC_BGTZALC;
- } else if (rs != 0 && rt != 0 && rs == rt) {
- /* BLTZALC */
- mips32_op = OPC_BLTZALC;
- } else {
- /* BLTUC */
- mips32_op = OPC_BLTUC;
- }
- gen_compute_compact_branch(ctx, mips32_op, rs, rt, imm << 1);
- break;
- /* Loads and stores */
- case LB32:
- mips32_op = OPC_LB;
- goto do_ld;
- case LBU32:
- mips32_op = OPC_LBU;
- goto do_ld;
- case LH32:
- mips32_op = OPC_LH;
- goto do_ld;
- case LHU32:
- mips32_op = OPC_LHU;
- goto do_ld;
- case LW32:
- mips32_op = OPC_LW;
- goto do_ld;
-#ifdef TARGET_MIPS64
- case LD32:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- mips32_op = OPC_LD;
- goto do_ld;
- case SD32:
- check_insn(ctx, ISA_MIPS3);
- check_mips_64(ctx);
- mips32_op = OPC_SD;
- goto do_st;
-#endif
- case SB32:
- mips32_op = OPC_SB;
- goto do_st;
- case SH32:
- mips32_op = OPC_SH;
- goto do_st;
- case SW32:
- mips32_op = OPC_SW;
- goto do_st;
- do_ld:
- gen_ld(ctx, mips32_op, rt, rs, imm);
- break;
- do_st:
- gen_st(ctx, mips32_op, rt, rs, imm);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
-}
-
-static int decode_micromips_opc(CPUMIPSState *env, DisasContext *ctx)
-{
- uint32_t op;
-
- /* make sure instructions are on a halfword boundary */
- if (ctx->base.pc_next & 0x1) {
- env->CP0_BadVAddr = ctx->base.pc_next;
- generate_exception_end(ctx, EXCP_AdEL);
- return 2;
- }
-
- op = (ctx->opcode >> 10) & 0x3f;
- /* Enforce properly-sized instructions in a delay slot */
- if (ctx->hflags & MIPS_HFLAG_BDS_STRICT) {
- switch (op & 0x7) { /* MSB-3..MSB-5 */
- case 0:
- /* POOL32A, POOL32B, POOL32I, POOL32C */
- case 4:
- /* ADDI32, ADDIU32, ORI32, XORI32, SLTI32, SLTIU32, ANDI32, JALX32 */
- case 5:
- /* LBU32, LHU32, POOL32F, JALS32, BEQ32, BNE32, J32, JAL32 */
- case 6:
- /* SB32, SH32, ADDIUPC, SWC132, SDC132, SW32 */
- case 7:
- /* LB32, LH32, LWC132, LDC132, LW32 */
- if (ctx->hflags & MIPS_HFLAG_BDS16) {
- gen_reserved_instruction(ctx);
- return 2;
- }
- break;
- case 1:
- /* POOL16A, POOL16B, POOL16C, LWGP16, POOL16F */
- case 2:
- /* LBU16, LHU16, LWSP16, LW16, SB16, SH16, SWSP16, SW16 */
- case 3:
- /* MOVE16, ANDI16, POOL16D, POOL16E, BEQZ16, BNEZ16, B16, LI16 */
- if (ctx->hflags & MIPS_HFLAG_BDS32) {
- gen_reserved_instruction(ctx);
- return 2;
- }
- break;
- }
- }
-
- switch (op) {
- case POOL16A:
- {
- int rd = mmreg(uMIPS_RD(ctx->opcode));
- int rs1 = mmreg(uMIPS_RS1(ctx->opcode));
- int rs2 = mmreg(uMIPS_RS2(ctx->opcode));
- uint32_t opc = 0;
-
- switch (ctx->opcode & 0x1) {
- case ADDU16:
- opc = OPC_ADDU;
- break;
- case SUBU16:
- opc = OPC_SUBU;
- break;
- }
- if (ctx->insn_flags & ISA_MIPS_R6) {
- /*
- * In the Release 6, the register number location in
- * the instruction encoding has changed.
- */
- gen_arith(ctx, opc, rs1, rd, rs2);
- } else {
- gen_arith(ctx, opc, rd, rs1, rs2);
- }
- }
- break;
- case POOL16B:
- {
- int rd = mmreg(uMIPS_RD(ctx->opcode));
- int rs = mmreg(uMIPS_RS(ctx->opcode));
- int amount = (ctx->opcode >> 1) & 0x7;
- uint32_t opc = 0;
- amount = amount == 0 ? 8 : amount;
-
- switch (ctx->opcode & 0x1) {
- case SLL16:
- opc = OPC_SLL;
- break;
- case SRL16:
- opc = OPC_SRL;
- break;
- }
-
- gen_shift_imm(ctx, opc, rd, rs, amount);
- }
- break;
- case POOL16C:
- if (ctx->insn_flags & ISA_MIPS_R6) {
- gen_pool16c_r6_insn(ctx);
- } else {
- gen_pool16c_insn(ctx);
- }
- break;
- case LWGP16:
- {
- int rd = mmreg(uMIPS_RD(ctx->opcode));
- int rb = 28; /* GP */
- int16_t offset = SIMM(ctx->opcode, 0, 7) << 2;
-
- gen_ld(ctx, OPC_LW, rd, rb, offset);
- }
- break;
- case POOL16F:
- check_insn_opc_removed(ctx, ISA_MIPS_R6);
- if (ctx->opcode & 1) {
- gen_reserved_instruction(ctx);
- } else {
- /* MOVEP */
- int enc_dest = uMIPS_RD(ctx->opcode);
- int enc_rt = uMIPS_RS2(ctx->opcode);
- int enc_rs = uMIPS_RS1(ctx->opcode);
- gen_movep(ctx, enc_dest, enc_rt, enc_rs);
- }
- break;
- case LBU16:
- {
- int rd = mmreg(uMIPS_RD(ctx->opcode));
- int rb = mmreg(uMIPS_RS(ctx->opcode));
- int16_t offset = ZIMM(ctx->opcode, 0, 4);
- offset = (offset == 0xf ? -1 : offset);
-
- gen_ld(ctx, OPC_LBU, rd, rb, offset);
- }
- break;
- case LHU16:
- {
- int rd = mmreg(uMIPS_RD(ctx->opcode));
- int rb = mmreg(uMIPS_RS(ctx->opcode));
- int16_t offset = ZIMM(ctx->opcode, 0, 4) << 1;
-
- gen_ld(ctx, OPC_LHU, rd, rb, offset);
- }
- break;
- case LWSP16:
- {
- int rd = (ctx->opcode >> 5) & 0x1f;
- int rb = 29; /* SP */
- int16_t offset = ZIMM(ctx->opcode, 0, 5) << 2;
-
- gen_ld(ctx, OPC_LW, rd, rb, offset);
- }
- break;
- case LW16:
- {
- int rd = mmreg(uMIPS_RD(ctx->opcode));
- int rb = mmreg(uMIPS_RS(ctx->opcode));
- int16_t offset = ZIMM(ctx->opcode, 0, 4) << 2;
-
- gen_ld(ctx, OPC_LW, rd, rb, offset);
- }
- break;
- case SB16:
- {
- int rd = mmreg2(uMIPS_RD(ctx->opcode));
- int rb = mmreg(uMIPS_RS(ctx->opcode));
- int16_t offset = ZIMM(ctx->opcode, 0, 4);
-
- gen_st(ctx, OPC_SB, rd, rb, offset);
- }
- break;
- case SH16:
- {
- int rd = mmreg2(uMIPS_RD(ctx->opcode));
- int rb = mmreg(uMIPS_RS(ctx->opcode));
- int16_t offset = ZIMM(ctx->opcode, 0, 4) << 1;
-
- gen_st(ctx, OPC_SH, rd, rb, offset);
- }
- break;
- case SWSP16:
- {
- int rd = (ctx->opcode >> 5) & 0x1f;
- int rb = 29; /* SP */
- int16_t offset = ZIMM(ctx->opcode, 0, 5) << 2;
-
- gen_st(ctx, OPC_SW, rd, rb, offset);
- }
- break;
- case SW16:
- {
- int rd = mmreg2(uMIPS_RD(ctx->opcode));
- int rb = mmreg(uMIPS_RS(ctx->opcode));
- int16_t offset = ZIMM(ctx->opcode, 0, 4) << 2;
-
- gen_st(ctx, OPC_SW, rd, rb, offset);
- }
- break;
- case MOVE16:
- {
- int rd = uMIPS_RD5(ctx->opcode);
- int rs = uMIPS_RS5(ctx->opcode);
-
- gen_arith(ctx, OPC_ADDU, rd, rs, 0);
- }
- break;
- case ANDI16:
- gen_andi16(ctx);
- break;
- case POOL16D:
- switch (ctx->opcode & 0x1) {
- case ADDIUS5:
- gen_addius5(ctx);
- break;
- case ADDIUSP:
- gen_addiusp(ctx);
- break;
- }
- break;
- case POOL16E:
- switch (ctx->opcode & 0x1) {
- case ADDIUR2:
- gen_addiur2(ctx);
- break;
- case ADDIUR1SP:
- gen_addiur1sp(ctx);
- break;
- }
- break;
- case B16: /* BC16 */
- gen_compute_branch(ctx, OPC_BEQ, 2, 0, 0,
- sextract32(ctx->opcode, 0, 10) << 1,
- (ctx->insn_flags & ISA_MIPS_R6) ? 0 : 4);
- break;
- case BNEZ16: /* BNEZC16 */
- case BEQZ16: /* BEQZC16 */
- gen_compute_branch(ctx, op == BNEZ16 ? OPC_BNE : OPC_BEQ, 2,
- mmreg(uMIPS_RD(ctx->opcode)),
- 0, sextract32(ctx->opcode, 0, 7) << 1,
- (ctx->insn_flags & ISA_MIPS_R6) ? 0 : 4);
-
- break;
- case LI16:
- {
- int reg = mmreg(uMIPS_RD(ctx->opcode));
- int imm = ZIMM(ctx->opcode, 0, 7);
-
- imm = (imm == 0x7f ? -1 : imm);
- tcg_gen_movi_tl(cpu_gpr[reg], imm);
- }
- break;
- case RES_29:
- case RES_31:
- case RES_39:
- gen_reserved_instruction(ctx);
- break;
- default:
- decode_micromips32_opc(env, ctx);
- return 4;
- }
-
- return 2;
-}
-
-/*
- *
- * nanoMIPS opcodes
- *
- */
-
-/* MAJOR, P16, and P32 pools opcodes */
-enum {
- NM_P_ADDIU = 0x00,
- NM_ADDIUPC = 0x01,
- NM_MOVE_BALC = 0x02,
- NM_P16_MV = 0x04,
- NM_LW16 = 0x05,
- NM_BC16 = 0x06,
- NM_P16_SR = 0x07,
-
- NM_POOL32A = 0x08,
- NM_P_BAL = 0x0a,
- NM_P16_SHIFT = 0x0c,
- NM_LWSP16 = 0x0d,
- NM_BALC16 = 0x0e,
- NM_P16_4X4 = 0x0f,
-
- NM_P_GP_W = 0x10,
- NM_P_GP_BH = 0x11,
- NM_P_J = 0x12,
- NM_P16C = 0x14,
- NM_LWGP16 = 0x15,
- NM_P16_LB = 0x17,
-
- NM_P48I = 0x18,
- NM_P16_A1 = 0x1c,
- NM_LW4X4 = 0x1d,
- NM_P16_LH = 0x1f,
-
- NM_P_U12 = 0x20,
- NM_P_LS_U12 = 0x21,
- NM_P_BR1 = 0x22,
- NM_P16_A2 = 0x24,
- NM_SW16 = 0x25,
- NM_BEQZC16 = 0x26,
-
- NM_POOL32F = 0x28,
- NM_P_LS_S9 = 0x29,
- NM_P_BR2 = 0x2a,
-
- NM_P16_ADDU = 0x2c,
- NM_SWSP16 = 0x2d,
- NM_BNEZC16 = 0x2e,
- NM_MOVEP = 0x2f,
-
- NM_POOL32S = 0x30,
- NM_P_BRI = 0x32,
- NM_LI16 = 0x34,
- NM_SWGP16 = 0x35,
- NM_P16_BR = 0x36,
-
- NM_P_LUI = 0x38,
- NM_ANDI16 = 0x3c,
- NM_SW4X4 = 0x3d,
- NM_MOVEPREV = 0x3f,
-};
-
-/* POOL32A instruction pool */
-enum {
- NM_POOL32A0 = 0x00,
- NM_SPECIAL2 = 0x01,
- NM_COP2_1 = 0x02,
- NM_UDI = 0x03,
- NM_POOL32A5 = 0x05,
- NM_POOL32A7 = 0x07,
-};
-
-/* P.GP.W instruction pool */
-enum {
- NM_ADDIUGP_W = 0x00,
- NM_LWGP = 0x02,
- NM_SWGP = 0x03,
-};
-
-/* P48I instruction pool */
-enum {
- NM_LI48 = 0x00,
- NM_ADDIU48 = 0x01,
- NM_ADDIUGP48 = 0x02,
- NM_ADDIUPC48 = 0x03,
- NM_LWPC48 = 0x0b,
- NM_SWPC48 = 0x0f,
-};
-
-/* P.U12 instruction pool */
-enum {
- NM_ORI = 0x00,
- NM_XORI = 0x01,
- NM_ANDI = 0x02,
- NM_P_SR = 0x03,
- NM_SLTI = 0x04,
- NM_SLTIU = 0x05,
- NM_SEQI = 0x06,
- NM_ADDIUNEG = 0x08,
- NM_P_SHIFT = 0x0c,
- NM_P_ROTX = 0x0d,
- NM_P_INS = 0x0e,
- NM_P_EXT = 0x0f,
-};
-
-/* POOL32F instruction pool */
-enum {
- NM_POOL32F_0 = 0x00,
- NM_POOL32F_3 = 0x03,
- NM_POOL32F_5 = 0x05,
-};
-
-/* POOL32S instruction pool */
-enum {
- NM_POOL32S_0 = 0x00,
- NM_POOL32S_4 = 0x04,
-};
-
-/* P.LUI instruction pool */
-enum {
- NM_LUI = 0x00,
- NM_ALUIPC = 0x01,
-};
-
-/* P.GP.BH instruction pool */
-enum {
- NM_LBGP = 0x00,
- NM_SBGP = 0x01,
- NM_LBUGP = 0x02,
- NM_ADDIUGP_B = 0x03,
- NM_P_GP_LH = 0x04,
- NM_P_GP_SH = 0x05,
- NM_P_GP_CP1 = 0x06,
-};
-
-/* P.LS.U12 instruction pool */
-enum {
- NM_LB = 0x00,
- NM_SB = 0x01,
- NM_LBU = 0x02,
- NM_P_PREFU12 = 0x03,
- NM_LH = 0x04,
- NM_SH = 0x05,
- NM_LHU = 0x06,
- NM_LWU = 0x07,
- NM_LW = 0x08,
- NM_SW = 0x09,
- NM_LWC1 = 0x0a,
- NM_SWC1 = 0x0b,
- NM_LDC1 = 0x0e,
- NM_SDC1 = 0x0f,
-};
-
-/* P.LS.S9 instruction pool */
-enum {
- NM_P_LS_S0 = 0x00,
- NM_P_LS_S1 = 0x01,
- NM_P_LS_E0 = 0x02,
- NM_P_LS_WM = 0x04,
- NM_P_LS_UAWM = 0x05,
-};
-
-/* P.BAL instruction pool */
-enum {
- NM_BC = 0x00,
- NM_BALC = 0x01,
-};
-
-/* P.J instruction pool */
-enum {
- NM_JALRC = 0x00,
- NM_JALRC_HB = 0x01,
- NM_P_BALRSC = 0x08,
-};
-
-/* P.BR1 instruction pool */
-enum {
- NM_BEQC = 0x00,
- NM_P_BR3A = 0x01,
- NM_BGEC = 0x02,
- NM_BGEUC = 0x03,
-};
-
-/* P.BR2 instruction pool */
-enum {
- NM_BNEC = 0x00,
- NM_BLTC = 0x02,
- NM_BLTUC = 0x03,
-};
-
-/* P.BRI instruction pool */
-enum {
- NM_BEQIC = 0x00,
- NM_BBEQZC = 0x01,
- NM_BGEIC = 0x02,
- NM_BGEIUC = 0x03,
- NM_BNEIC = 0x04,
- NM_BBNEZC = 0x05,
- NM_BLTIC = 0x06,
- NM_BLTIUC = 0x07,
-};
-
-/* P16.SHIFT instruction pool */
-enum {
- NM_SLL16 = 0x00,
- NM_SRL16 = 0x01,
-};
-
-/* POOL16C instruction pool */
-enum {
- NM_POOL16C_0 = 0x00,
- NM_LWXS16 = 0x01,
-};
-
-/* P16.A1 instruction pool */
-enum {
- NM_ADDIUR1SP = 0x01,
-};
-
-/* P16.A2 instruction pool */
-enum {
- NM_ADDIUR2 = 0x00,
- NM_P_ADDIURS5 = 0x01,
-};
-
-/* P16.ADDU instruction pool */
-enum {
- NM_ADDU16 = 0x00,
- NM_SUBU16 = 0x01,
-};
-
-/* P16.SR instruction pool */
-enum {
- NM_SAVE16 = 0x00,
- NM_RESTORE_JRC16 = 0x01,
-};
-
-/* P16.4X4 instruction pool */
-enum {
- NM_ADDU4X4 = 0x00,
- NM_MUL4X4 = 0x01,
-};
-
-/* P16.LB instruction pool */
-enum {
- NM_LB16 = 0x00,
- NM_SB16 = 0x01,
- NM_LBU16 = 0x02,
-};
-
-/* P16.LH instruction pool */
-enum {
- NM_LH16 = 0x00,
- NM_SH16 = 0x01,
- NM_LHU16 = 0x02,
-};
-
-/* P.RI instruction pool */
-enum {
- NM_SIGRIE = 0x00,
- NM_P_SYSCALL = 0x01,
- NM_BREAK = 0x02,
- NM_SDBBP = 0x03,
-};
-
-/* POOL32A0 instruction pool */
-enum {
- NM_P_TRAP = 0x00,
- NM_SEB = 0x01,
- NM_SLLV = 0x02,
- NM_MUL = 0x03,
- NM_MFC0 = 0x06,
- NM_MFHC0 = 0x07,
- NM_SEH = 0x09,
- NM_SRLV = 0x0a,
- NM_MUH = 0x0b,
- NM_MTC0 = 0x0e,
- NM_MTHC0 = 0x0f,
- NM_SRAV = 0x12,
- NM_MULU = 0x13,
- NM_ROTRV = 0x1a,
- NM_MUHU = 0x1b,
- NM_ADD = 0x22,
- NM_DIV = 0x23,
- NM_ADDU = 0x2a,
- NM_MOD = 0x2b,
- NM_SUB = 0x32,
- NM_DIVU = 0x33,
- NM_RDHWR = 0x38,
- NM_SUBU = 0x3a,
- NM_MODU = 0x3b,
- NM_P_CMOVE = 0x42,
- NM_FORK = 0x45,
- NM_MFTR = 0x46,
- NM_MFHTR = 0x47,
- NM_AND = 0x4a,
- NM_YIELD = 0x4d,
- NM_MTTR = 0x4e,
- NM_MTHTR = 0x4f,
- NM_OR = 0x52,
- NM_D_E_MT_VPE = 0x56,
- NM_NOR = 0x5a,
- NM_XOR = 0x62,
- NM_SLT = 0x6a,
- NM_P_SLTU = 0x72,
- NM_SOV = 0x7a,
-};
-
-/* CRC32 instruction pool */
-enum {
- NM_CRC32B = 0x00,
- NM_CRC32H = 0x01,
- NM_CRC32W = 0x02,
- NM_CRC32CB = 0x04,
- NM_CRC32CH = 0x05,
- NM_CRC32CW = 0x06,
-};
-
-/* POOL32A5 instruction pool */
-enum {
- NM_CMP_EQ_PH = 0x00,
- NM_CMP_LT_PH = 0x08,
- NM_CMP_LE_PH = 0x10,
- NM_CMPGU_EQ_QB = 0x18,
- NM_CMPGU_LT_QB = 0x20,
- NM_CMPGU_LE_QB = 0x28,
- NM_CMPGDU_EQ_QB = 0x30,
- NM_CMPGDU_LT_QB = 0x38,
- NM_CMPGDU_LE_QB = 0x40,
- NM_CMPU_EQ_QB = 0x48,
- NM_CMPU_LT_QB = 0x50,
- NM_CMPU_LE_QB = 0x58,
- NM_ADDQ_S_W = 0x60,
- NM_SUBQ_S_W = 0x68,
- NM_ADDSC = 0x70,
- NM_ADDWC = 0x78,
-
- NM_ADDQ_S_PH = 0x01,
- NM_ADDQH_R_PH = 0x09,
- NM_ADDQH_R_W = 0x11,
- NM_ADDU_S_QB = 0x19,
- NM_ADDU_S_PH = 0x21,
- NM_ADDUH_R_QB = 0x29,
- NM_SHRAV_R_PH = 0x31,
- NM_SHRAV_R_QB = 0x39,
- NM_SUBQ_S_PH = 0x41,
- NM_SUBQH_R_PH = 0x49,
- NM_SUBQH_R_W = 0x51,
- NM_SUBU_S_QB = 0x59,
- NM_SUBU_S_PH = 0x61,
- NM_SUBUH_R_QB = 0x69,
- NM_SHLLV_S_PH = 0x71,
- NM_PRECR_SRA_R_PH_W = 0x79,
-
- NM_MULEU_S_PH_QBL = 0x12,
- NM_MULEU_S_PH_QBR = 0x1a,
- NM_MULQ_RS_PH = 0x22,
- NM_MULQ_S_PH = 0x2a,
- NM_MULQ_RS_W = 0x32,
- NM_MULQ_S_W = 0x3a,
- NM_APPEND = 0x42,
- NM_MODSUB = 0x52,
- NM_SHRAV_R_W = 0x5a,
- NM_SHRLV_PH = 0x62,
- NM_SHRLV_QB = 0x6a,
- NM_SHLLV_QB = 0x72,
- NM_SHLLV_S_W = 0x7a,
-
- NM_SHILO = 0x03,
-
- NM_MULEQ_S_W_PHL = 0x04,
- NM_MULEQ_S_W_PHR = 0x0c,
-
- NM_MUL_S_PH = 0x05,
- NM_PRECR_QB_PH = 0x0d,
- NM_PRECRQ_QB_PH = 0x15,
- NM_PRECRQ_PH_W = 0x1d,
- NM_PRECRQ_RS_PH_W = 0x25,
- NM_PRECRQU_S_QB_PH = 0x2d,
- NM_PACKRL_PH = 0x35,
- NM_PICK_QB = 0x3d,
- NM_PICK_PH = 0x45,
-
- NM_SHRA_R_W = 0x5e,
- NM_SHRA_R_PH = 0x66,
- NM_SHLL_S_PH = 0x76,
- NM_SHLL_S_W = 0x7e,
-
- NM_REPL_PH = 0x07
-};
-
-/* POOL32A7 instruction pool */
-enum {
- NM_P_LSX = 0x00,
- NM_LSA = 0x01,
- NM_EXTW = 0x03,
- NM_POOL32AXF = 0x07,
-};
-
-/* P.SR instruction pool */
-enum {
- NM_PP_SR = 0x00,
- NM_P_SR_F = 0x01,
-};
-
-/* P.SHIFT instruction pool */
-enum {
- NM_P_SLL = 0x00,
- NM_SRL = 0x02,
- NM_SRA = 0x04,
- NM_ROTR = 0x06,
-};
-
-/* P.ROTX instruction pool */
-enum {
- NM_ROTX = 0x00,
-};
-
-/* P.INS instruction pool */
-enum {
- NM_INS = 0x00,
-};
-
-/* P.EXT instruction pool */
-enum {
- NM_EXT = 0x00,
-};
-
-/* POOL32F_0 (fmt) instruction pool */
-enum {
- NM_RINT_S = 0x04,
- NM_RINT_D = 0x44,
- NM_ADD_S = 0x06,
- NM_SELEQZ_S = 0x07,
- NM_SELEQZ_D = 0x47,
- NM_CLASS_S = 0x0c,
- NM_CLASS_D = 0x4c,
- NM_SUB_S = 0x0e,
- NM_SELNEZ_S = 0x0f,
- NM_SELNEZ_D = 0x4f,
- NM_MUL_S = 0x16,
- NM_SEL_S = 0x17,
- NM_SEL_D = 0x57,
- NM_DIV_S = 0x1e,
- NM_ADD_D = 0x26,
- NM_SUB_D = 0x2e,
- NM_MUL_D = 0x36,
- NM_MADDF_S = 0x37,
- NM_MADDF_D = 0x77,
- NM_DIV_D = 0x3e,
- NM_MSUBF_S = 0x3f,
- NM_MSUBF_D = 0x7f,
-};
-
-/* POOL32F_3 instruction pool */
-enum {
- NM_MIN_FMT = 0x00,
- NM_MAX_FMT = 0x01,
- NM_MINA_FMT = 0x04,
- NM_MAXA_FMT = 0x05,
- NM_POOL32FXF = 0x07,
-};
-
-/* POOL32F_5 instruction pool */
-enum {
- NM_CMP_CONDN_S = 0x00,
- NM_CMP_CONDN_D = 0x02,
-};
-
-/* P.GP.LH instruction pool */
-enum {
- NM_LHGP = 0x00,
- NM_LHUGP = 0x01,
-};
-
-/* P.GP.SH instruction pool */
-enum {
- NM_SHGP = 0x00,
-};
-
-/* P.GP.CP1 instruction pool */
-enum {
- NM_LWC1GP = 0x00,
- NM_SWC1GP = 0x01,
- NM_LDC1GP = 0x02,
- NM_SDC1GP = 0x03,
-};
-
-/* P.LS.S0 instruction pool */
-enum {
- NM_LBS9 = 0x00,
- NM_LHS9 = 0x04,
- NM_LWS9 = 0x08,
- NM_LDS9 = 0x0c,
-
- NM_SBS9 = 0x01,
- NM_SHS9 = 0x05,
- NM_SWS9 = 0x09,
- NM_SDS9 = 0x0d,
-
- NM_LBUS9 = 0x02,
- NM_LHUS9 = 0x06,
- NM_LWC1S9 = 0x0a,
- NM_LDC1S9 = 0x0e,
-
- NM_P_PREFS9 = 0x03,
- NM_LWUS9 = 0x07,
- NM_SWC1S9 = 0x0b,
- NM_SDC1S9 = 0x0f,
-};
-
-/* P.LS.S1 instruction pool */
-enum {
- NM_ASET_ACLR = 0x02,
- NM_UALH = 0x04,
- NM_UASH = 0x05,
- NM_CACHE = 0x07,
- NM_P_LL = 0x0a,
- NM_P_SC = 0x0b,
-};
-
-/* P.LS.E0 instruction pool */
-enum {
- NM_LBE = 0x00,
- NM_SBE = 0x01,
- NM_LBUE = 0x02,
- NM_P_PREFE = 0x03,
- NM_LHE = 0x04,
- NM_SHE = 0x05,
- NM_LHUE = 0x06,
- NM_CACHEE = 0x07,
- NM_LWE = 0x08,
- NM_SWE = 0x09,
- NM_P_LLE = 0x0a,
- NM_P_SCE = 0x0b,
-};
-
-/* P.PREFE instruction pool */
-enum {
- NM_SYNCIE = 0x00,
- NM_PREFE = 0x01,
-};
-
-/* P.LLE instruction pool */
-enum {
- NM_LLE = 0x00,
- NM_LLWPE = 0x01,
-};
-
-/* P.SCE instruction pool */
-enum {
- NM_SCE = 0x00,
- NM_SCWPE = 0x01,
-};
-
-/* P.LS.WM instruction pool */
-enum {
- NM_LWM = 0x00,
- NM_SWM = 0x01,
-};
-
-/* P.LS.UAWM instruction pool */
-enum {
- NM_UALWM = 0x00,
- NM_UASWM = 0x01,
-};
-
-/* P.BR3A instruction pool */
-enum {
- NM_BC1EQZC = 0x00,
- NM_BC1NEZC = 0x01,
- NM_BC2EQZC = 0x02,
- NM_BC2NEZC = 0x03,
- NM_BPOSGE32C = 0x04,
-};
-
-/* P16.RI instruction pool */
-enum {
- NM_P16_SYSCALL = 0x01,
- NM_BREAK16 = 0x02,
- NM_SDBBP16 = 0x03,
-};
-
-/* POOL16C_0 instruction pool */
-enum {
- NM_POOL16C_00 = 0x00,
-};
-
-/* P16.JRC instruction pool */
-enum {
- NM_JRC = 0x00,
- NM_JALRC16 = 0x01,
-};
-
-/* P.SYSCALL instruction pool */
-enum {
- NM_SYSCALL = 0x00,
- NM_HYPCALL = 0x01,
-};
-
-/* P.TRAP instruction pool */
-enum {
- NM_TEQ = 0x00,
- NM_TNE = 0x01,
-};
-
-/* P.CMOVE instruction pool */
-enum {
- NM_MOVZ = 0x00,
- NM_MOVN = 0x01,
-};
-
-/* POOL32Axf instruction pool */
-enum {
- NM_POOL32AXF_1 = 0x01,
- NM_POOL32AXF_2 = 0x02,
- NM_POOL32AXF_4 = 0x04,
- NM_POOL32AXF_5 = 0x05,
- NM_POOL32AXF_7 = 0x07,
-};
-
-/* POOL32Axf_1 instruction pool */
-enum {
- NM_POOL32AXF_1_0 = 0x00,
- NM_POOL32AXF_1_1 = 0x01,
- NM_POOL32AXF_1_3 = 0x03,
- NM_POOL32AXF_1_4 = 0x04,
- NM_POOL32AXF_1_5 = 0x05,
- NM_POOL32AXF_1_7 = 0x07,
-};
-
-/* POOL32Axf_2 instruction pool */
-enum {
- NM_POOL32AXF_2_0_7 = 0x00,
- NM_POOL32AXF_2_8_15 = 0x01,
- NM_POOL32AXF_2_16_23 = 0x02,
- NM_POOL32AXF_2_24_31 = 0x03,
-};
-
-/* POOL32Axf_7 instruction pool */
-enum {
- NM_SHRA_R_QB = 0x0,
- NM_SHRL_PH = 0x1,
- NM_REPL_QB = 0x2,
-};
-
-/* POOL32Axf_1_0 instruction pool */
-enum {
- NM_MFHI = 0x0,
- NM_MFLO = 0x1,
- NM_MTHI = 0x2,
- NM_MTLO = 0x3,
-};
-
-/* POOL32Axf_1_1 instruction pool */
-enum {
- NM_MTHLIP = 0x0,
- NM_SHILOV = 0x1,
-};
-
-/* POOL32Axf_1_3 instruction pool */
-enum {
- NM_RDDSP = 0x0,
- NM_WRDSP = 0x1,
- NM_EXTP = 0x2,
- NM_EXTPDP = 0x3,
-};
-
-/* POOL32Axf_1_4 instruction pool */
-enum {
- NM_SHLL_QB = 0x0,
- NM_SHRL_QB = 0x1,
-};
-
-/* POOL32Axf_1_5 instruction pool */
-enum {
- NM_MAQ_S_W_PHR = 0x0,
- NM_MAQ_S_W_PHL = 0x1,
- NM_MAQ_SA_W_PHR = 0x2,
- NM_MAQ_SA_W_PHL = 0x3,
-};
-
-/* POOL32Axf_1_7 instruction pool */
-enum {
- NM_EXTR_W = 0x0,
- NM_EXTR_R_W = 0x1,
- NM_EXTR_RS_W = 0x2,
- NM_EXTR_S_H = 0x3,
-};
-
-/* POOL32Axf_2_0_7 instruction pool */
-enum {
- NM_DPA_W_PH = 0x0,
- NM_DPAQ_S_W_PH = 0x1,
- NM_DPS_W_PH = 0x2,
- NM_DPSQ_S_W_PH = 0x3,
- NM_BALIGN = 0x4,
- NM_MADD = 0x5,
- NM_MULT = 0x6,
- NM_EXTRV_W = 0x7,
-};
-
-/* POOL32Axf_2_8_15 instruction pool */
-enum {
- NM_DPAX_W_PH = 0x0,
- NM_DPAQ_SA_L_W = 0x1,
- NM_DPSX_W_PH = 0x2,
- NM_DPSQ_SA_L_W = 0x3,
- NM_MADDU = 0x5,
- NM_MULTU = 0x6,
- NM_EXTRV_R_W = 0x7,
-};
-
-/* POOL32Axf_2_16_23 instruction pool */
-enum {
- NM_DPAU_H_QBL = 0x0,
- NM_DPAQX_S_W_PH = 0x1,
- NM_DPSU_H_QBL = 0x2,
- NM_DPSQX_S_W_PH = 0x3,
- NM_EXTPV = 0x4,
- NM_MSUB = 0x5,
- NM_MULSA_W_PH = 0x6,
- NM_EXTRV_RS_W = 0x7,
-};
-
-/* POOL32Axf_2_24_31 instruction pool */
-enum {
- NM_DPAU_H_QBR = 0x0,
- NM_DPAQX_SA_W_PH = 0x1,
- NM_DPSU_H_QBR = 0x2,
- NM_DPSQX_SA_W_PH = 0x3,
- NM_EXTPDPV = 0x4,
- NM_MSUBU = 0x5,
- NM_MULSAQ_S_W_PH = 0x6,
- NM_EXTRV_S_H = 0x7,
-};
-
-/* POOL32Axf_{4, 5} instruction pool */
-enum {
- NM_CLO = 0x25,
- NM_CLZ = 0x2d,
-
- NM_TLBP = 0x01,
- NM_TLBR = 0x09,
- NM_TLBWI = 0x11,
- NM_TLBWR = 0x19,
- NM_TLBINV = 0x03,
- NM_TLBINVF = 0x0b,
- NM_DI = 0x23,
- NM_EI = 0x2b,
- NM_RDPGPR = 0x70,
- NM_WRPGPR = 0x78,
- NM_WAIT = 0x61,
- NM_DERET = 0x71,
- NM_ERETX = 0x79,
-
- /* nanoMIPS DSP instructions */
- NM_ABSQ_S_QB = 0x00,
- NM_ABSQ_S_PH = 0x08,
- NM_ABSQ_S_W = 0x10,
- NM_PRECEQ_W_PHL = 0x28,
- NM_PRECEQ_W_PHR = 0x30,
- NM_PRECEQU_PH_QBL = 0x38,
- NM_PRECEQU_PH_QBR = 0x48,
- NM_PRECEU_PH_QBL = 0x58,
- NM_PRECEU_PH_QBR = 0x68,
- NM_PRECEQU_PH_QBLA = 0x39,
- NM_PRECEQU_PH_QBRA = 0x49,
- NM_PRECEU_PH_QBLA = 0x59,
- NM_PRECEU_PH_QBRA = 0x69,
- NM_REPLV_PH = 0x01,
- NM_REPLV_QB = 0x09,
- NM_BITREV = 0x18,
- NM_INSV = 0x20,
- NM_RADDU_W_QB = 0x78,
-
- NM_BITSWAP = 0x05,
- NM_WSBH = 0x3d,
-};
-
-/* PP.SR instruction pool */
-enum {
- NM_SAVE = 0x00,
- NM_RESTORE = 0x02,
- NM_RESTORE_JRC = 0x03,
-};
-
-/* P.SR.F instruction pool */
-enum {
- NM_SAVEF = 0x00,
- NM_RESTOREF = 0x01,
-};
-
-/* P16.SYSCALL instruction pool */
-enum {
- NM_SYSCALL16 = 0x00,
- NM_HYPCALL16 = 0x01,
-};
-
-/* POOL16C_00 instruction pool */
-enum {
- NM_NOT16 = 0x00,
- NM_XOR16 = 0x01,
- NM_AND16 = 0x02,
- NM_OR16 = 0x03,
-};
-
-/* PP.LSX and PP.LSXS instruction pool */
-enum {
- NM_LBX = 0x00,
- NM_LHX = 0x04,
- NM_LWX = 0x08,
- NM_LDX = 0x0c,
-
- NM_SBX = 0x01,
- NM_SHX = 0x05,
- NM_SWX = 0x09,
- NM_SDX = 0x0d,
-
- NM_LBUX = 0x02,
- NM_LHUX = 0x06,
- NM_LWC1X = 0x0a,
- NM_LDC1X = 0x0e,
-
- NM_LWUX = 0x07,
- NM_SWC1X = 0x0b,
- NM_SDC1X = 0x0f,
-
- NM_LHXS = 0x04,
- NM_LWXS = 0x08,
- NM_LDXS = 0x0c,
-
- NM_SHXS = 0x05,
- NM_SWXS = 0x09,
- NM_SDXS = 0x0d,
-
- NM_LHUXS = 0x06,
- NM_LWC1XS = 0x0a,
- NM_LDC1XS = 0x0e,
-
- NM_LWUXS = 0x07,
- NM_SWC1XS = 0x0b,
- NM_SDC1XS = 0x0f,
-};
-
-/* ERETx instruction pool */
-enum {
- NM_ERET = 0x00,
- NM_ERETNC = 0x01,
-};
-
-/* POOL32FxF_{0, 1} insturction pool */
-enum {
- NM_CFC1 = 0x40,
- NM_CTC1 = 0x60,
- NM_MFC1 = 0x80,
- NM_MTC1 = 0xa0,
- NM_MFHC1 = 0xc0,
- NM_MTHC1 = 0xe0,
-
- NM_CVT_S_PL = 0x84,
- NM_CVT_S_PU = 0xa4,
-
- NM_CVT_L_S = 0x004,
- NM_CVT_L_D = 0x104,
- NM_CVT_W_S = 0x024,
- NM_CVT_W_D = 0x124,
-
- NM_RSQRT_S = 0x008,
- NM_RSQRT_D = 0x108,
-
- NM_SQRT_S = 0x028,
- NM_SQRT_D = 0x128,
-
- NM_RECIP_S = 0x048,
- NM_RECIP_D = 0x148,
-
- NM_FLOOR_L_S = 0x00c,
- NM_FLOOR_L_D = 0x10c,
-
- NM_FLOOR_W_S = 0x02c,
- NM_FLOOR_W_D = 0x12c,
-
- NM_CEIL_L_S = 0x04c,
- NM_CEIL_L_D = 0x14c,
- NM_CEIL_W_S = 0x06c,
- NM_CEIL_W_D = 0x16c,
- NM_TRUNC_L_S = 0x08c,
- NM_TRUNC_L_D = 0x18c,
- NM_TRUNC_W_S = 0x0ac,
- NM_TRUNC_W_D = 0x1ac,
- NM_ROUND_L_S = 0x0cc,
- NM_ROUND_L_D = 0x1cc,
- NM_ROUND_W_S = 0x0ec,
- NM_ROUND_W_D = 0x1ec,
-
- NM_MOV_S = 0x01,
- NM_MOV_D = 0x81,
- NM_ABS_S = 0x0d,
- NM_ABS_D = 0x8d,
- NM_NEG_S = 0x2d,
- NM_NEG_D = 0xad,
- NM_CVT_D_S = 0x04d,
- NM_CVT_D_W = 0x0cd,
- NM_CVT_D_L = 0x14d,
- NM_CVT_S_D = 0x06d,
- NM_CVT_S_W = 0x0ed,
- NM_CVT_S_L = 0x16d,
-};
-
-/* P.LL instruction pool */
-enum {
- NM_LL = 0x00,
- NM_LLWP = 0x01,
-};
-
-/* P.SC instruction pool */
-enum {
- NM_SC = 0x00,
- NM_SCWP = 0x01,
-};
-
-/* P.DVP instruction pool */
-enum {
- NM_DVP = 0x00,
- NM_EVP = 0x01,
-};
-
-
-/*
- *
- * nanoMIPS decoding engine
- *
- */
-
-
-/* extraction utilities */
-
-#define NANOMIPS_EXTRACT_RT3(op) ((op >> 7) & 0x7)
-#define NANOMIPS_EXTRACT_RS3(op) ((op >> 4) & 0x7)
-#define NANOMIPS_EXTRACT_RD3(op) ((op >> 1) & 0x7)
-#define NANOMIPS_EXTRACT_RD5(op) ((op >> 5) & 0x1f)
-#define NANOMIPS_EXTRACT_RS5(op) (op & 0x1f)
-
-/* Implement nanoMIPS pseudocode decode_gpr(encoded_gpr, 'gpr3'). */
-static inline int decode_gpr_gpr3(int r)
-{
- static const int map[] = { 16, 17, 18, 19, 4, 5, 6, 7 };
-
- return map[r & 0x7];
-}
-
-/* Implement nanoMIPS pseudocode decode_gpr(encoded_gpr, 'gpr3.src.store'). */
-static inline int decode_gpr_gpr3_src_store(int r)
-{
- static const int map[] = { 0, 17, 18, 19, 4, 5, 6, 7 };
-
- return map[r & 0x7];
-}
-
-/* Implement nanoMIPS pseudocode decode_gpr(encoded_gpr, 'gpr4'). */
-static inline int decode_gpr_gpr4(int r)
-{
- static const int map[] = { 8, 9, 10, 11, 4, 5, 6, 7,
- 16, 17, 18, 19, 20, 21, 22, 23 };
-
- return map[r & 0xf];
-}
-
-/* Implement nanoMIPS pseudocode decode_gpr(encoded_gpr, 'gpr4.zero'). */
-static inline int decode_gpr_gpr4_zero(int r)
-{
- static const int map[] = { 8, 9, 10, 0, 4, 5, 6, 7,
- 16, 17, 18, 19, 20, 21, 22, 23 };
-
- return map[r & 0xf];
-}
-
-
-static void gen_adjust_sp(DisasContext *ctx, int u)
-{
- gen_op_addr_addi(ctx, cpu_gpr[29], cpu_gpr[29], u);
-}
-
-static void gen_save(DisasContext *ctx, uint8_t rt, uint8_t count,
- uint8_t gp, uint16_t u)
-{
- int counter = 0;
- TCGv va = tcg_temp_new();
- TCGv t0 = tcg_temp_new();
-
- while (counter != count) {
- bool use_gp = gp && (counter == count - 1);
- int this_rt = use_gp ? 28 : (rt & 0x10) | ((rt + counter) & 0x1f);
- int this_offset = -((counter + 1) << 2);
- gen_base_offset_addr(ctx, va, 29, this_offset);
- gen_load_gpr(t0, this_rt);
- tcg_gen_qemu_st_tl(t0, va, ctx->mem_idx,
- (MO_TEUL | ctx->default_tcg_memop_mask));
- counter++;
- }
-
- /* adjust stack pointer */
- gen_adjust_sp(ctx, -u);
-
- tcg_temp_free(t0);
- tcg_temp_free(va);
-}
-
-static void gen_restore(DisasContext *ctx, uint8_t rt, uint8_t count,
- uint8_t gp, uint16_t u)
-{
- int counter = 0;
- TCGv va = tcg_temp_new();
- TCGv t0 = tcg_temp_new();
-
- while (counter != count) {
- bool use_gp = gp && (counter == count - 1);
- int this_rt = use_gp ? 28 : (rt & 0x10) | ((rt + counter) & 0x1f);
- int this_offset = u - ((counter + 1) << 2);
- gen_base_offset_addr(ctx, va, 29, this_offset);
- tcg_gen_qemu_ld_tl(t0, va, ctx->mem_idx, MO_TESL |
- ctx->default_tcg_memop_mask);
- tcg_gen_ext32s_tl(t0, t0);
- gen_store_gpr(t0, this_rt);
- counter++;
- }
-
- /* adjust stack pointer */
- gen_adjust_sp(ctx, u);
-
- tcg_temp_free(t0);
- tcg_temp_free(va);
-}
-
-static void gen_pool16c_nanomips_insn(DisasContext *ctx)
-{
- int rt = decode_gpr_gpr3(NANOMIPS_EXTRACT_RT3(ctx->opcode));
- int rs = decode_gpr_gpr3(NANOMIPS_EXTRACT_RS3(ctx->opcode));
-
- switch (extract32(ctx->opcode, 2, 2)) {
- case NM_NOT16:
- gen_logic(ctx, OPC_NOR, rt, rs, 0);
- break;
- case NM_AND16:
- gen_logic(ctx, OPC_AND, rt, rt, rs);
- break;
- case NM_XOR16:
- gen_logic(ctx, OPC_XOR, rt, rt, rs);
- break;
- case NM_OR16:
- gen_logic(ctx, OPC_OR, rt, rt, rs);
- break;
- }
-}
-
-static void gen_pool32a0_nanomips_insn(CPUMIPSState *env, DisasContext *ctx)
-{
- int rt = extract32(ctx->opcode, 21, 5);
- int rs = extract32(ctx->opcode, 16, 5);
- int rd = extract32(ctx->opcode, 11, 5);
-
- switch (extract32(ctx->opcode, 3, 7)) {
- case NM_P_TRAP:
- switch (extract32(ctx->opcode, 10, 1)) {
- case NM_TEQ:
- check_nms(ctx);
- gen_trap(ctx, OPC_TEQ, rs, rt, -1);
- break;
- case NM_TNE:
- check_nms(ctx);
- gen_trap(ctx, OPC_TNE, rs, rt, -1);
- break;
- }
- break;
- case NM_RDHWR:
- check_nms(ctx);
- gen_rdhwr(ctx, rt, rs, extract32(ctx->opcode, 11, 3));
- break;
- case NM_SEB:
- check_nms(ctx);
- gen_bshfl(ctx, OPC_SEB, rs, rt);
- break;
- case NM_SEH:
- gen_bshfl(ctx, OPC_SEH, rs, rt);
- break;
- case NM_SLLV:
- gen_shift(ctx, OPC_SLLV, rd, rt, rs);
- break;
- case NM_SRLV:
- gen_shift(ctx, OPC_SRLV, rd, rt, rs);
- break;
- case NM_SRAV:
- gen_shift(ctx, OPC_SRAV, rd, rt, rs);
- break;
- case NM_ROTRV:
- gen_shift(ctx, OPC_ROTRV, rd, rt, rs);
- break;
- case NM_ADD:
- gen_arith(ctx, OPC_ADD, rd, rs, rt);
- break;
- case NM_ADDU:
- gen_arith(ctx, OPC_ADDU, rd, rs, rt);
- break;
- case NM_SUB:
- check_nms(ctx);
- gen_arith(ctx, OPC_SUB, rd, rs, rt);
- break;
- case NM_SUBU:
- gen_arith(ctx, OPC_SUBU, rd, rs, rt);
- break;
- case NM_P_CMOVE:
- switch (extract32(ctx->opcode, 10, 1)) {
- case NM_MOVZ:
- gen_cond_move(ctx, OPC_MOVZ, rd, rs, rt);
- break;
- case NM_MOVN:
- gen_cond_move(ctx, OPC_MOVN, rd, rs, rt);
- break;
- }
- break;
- case NM_AND:
- gen_logic(ctx, OPC_AND, rd, rs, rt);
- break;
- case NM_OR:
- gen_logic(ctx, OPC_OR, rd, rs, rt);
- break;
- case NM_NOR:
- gen_logic(ctx, OPC_NOR, rd, rs, rt);
- break;
- case NM_XOR:
- gen_logic(ctx, OPC_XOR, rd, rs, rt);
- break;
- case NM_SLT:
- gen_slt(ctx, OPC_SLT, rd, rs, rt);
- break;
- case NM_P_SLTU:
- if (rd == 0) {
- /* P_DVP */
-#ifndef CONFIG_USER_ONLY
- TCGv t0 = tcg_temp_new();
- switch (extract32(ctx->opcode, 10, 1)) {
- case NM_DVP:
- if (ctx->vp) {
- check_cp0_enabled(ctx);
- gen_helper_dvp(t0, cpu_env);
- gen_store_gpr(t0, rt);
- }
- break;
- case NM_EVP:
- if (ctx->vp) {
- check_cp0_enabled(ctx);
- gen_helper_evp(t0, cpu_env);
- gen_store_gpr(t0, rt);
- }
- break;
- }
- tcg_temp_free(t0);
-#endif
- } else {
- gen_slt(ctx, OPC_SLTU, rd, rs, rt);
- }
- break;
- case NM_SOV:
- {
- TCGv t0 = tcg_temp_new();
- TCGv t1 = tcg_temp_new();
- TCGv t2 = tcg_temp_new();
-
- gen_load_gpr(t1, rs);
- gen_load_gpr(t2, rt);
- tcg_gen_add_tl(t0, t1, t2);
- tcg_gen_ext32s_tl(t0, t0);
- tcg_gen_xor_tl(t1, t1, t2);
- tcg_gen_xor_tl(t2, t0, t2);
- tcg_gen_andc_tl(t1, t2, t1);
-
- /* operands of same sign, result different sign */
- tcg_gen_setcondi_tl(TCG_COND_LT, t0, t1, 0);
- gen_store_gpr(t0, rd);
-
- tcg_temp_free(t0);
- tcg_temp_free(t1);
- tcg_temp_free(t2);
- }
- break;
- case NM_MUL:
- gen_r6_muldiv(ctx, R6_OPC_MUL, rd, rs, rt);
- break;
- case NM_MUH:
- gen_r6_muldiv(ctx, R6_OPC_MUH, rd, rs, rt);
- break;
- case NM_MULU:
- gen_r6_muldiv(ctx, R6_OPC_MULU, rd, rs, rt);
- break;
- case NM_MUHU:
- gen_r6_muldiv(ctx, R6_OPC_MUHU, rd, rs, rt);
- break;
- case NM_DIV:
- gen_r6_muldiv(ctx, R6_OPC_DIV, rd, rs, rt);
- break;
- case NM_MOD:
- gen_r6_muldiv(ctx, R6_OPC_MOD, rd, rs, rt);
- break;
- case NM_DIVU:
- gen_r6_muldiv(ctx, R6_OPC_DIVU, rd, rs, rt);
- break;
- case NM_MODU:
- gen_r6_muldiv(ctx, R6_OPC_MODU, rd, rs, rt);
- break;
-#ifndef CONFIG_USER_ONLY
- case NM_MFC0:
- check_cp0_enabled(ctx);
- if (rt == 0) {
- /* Treat as NOP. */
- break;
- }
- gen_mfc0(ctx, cpu_gpr[rt], rs, extract32(ctx->opcode, 11, 3));
- break;
- case NM_MTC0:
- check_cp0_enabled(ctx);
- {
- TCGv t0 = tcg_temp_new();
-
- gen_load_gpr(t0, rt);
- gen_mtc0(ctx, t0, rs, extract32(ctx->opcode, 11, 3));
- tcg_temp_free(t0);
- }
- break;
- case NM_D_E_MT_VPE:
- {
- uint8_t sc = extract32(ctx->opcode, 10, 1);
- TCGv t0 = tcg_temp_new();
-
- switch (sc) {
- case 0:
- if (rs == 1) {
- /* DMT */
- check_cp0_mt(ctx);
- gen_helper_dmt(t0);
- gen_store_gpr(t0, rt);
- } else if (rs == 0) {
- /* DVPE */
- check_cp0_mt(ctx);
- gen_helper_dvpe(t0, cpu_env);
- gen_store_gpr(t0, rt);
- } else {
- gen_reserved_instruction(ctx);
- }
- break;
- case 1:
- if (rs == 1) {
- /* EMT */
- check_cp0_mt(ctx);
- gen_helper_emt(t0);
- gen_store_gpr(t0, rt);
- } else if (rs == 0) {
- /* EVPE */
- check_cp0_mt(ctx);
- gen_helper_evpe(t0, cpu_env);
- gen_store_gpr(t0, rt);
- } else {
- gen_reserved_instruction(ctx);
- }
- break;
- }
-
- tcg_temp_free(t0);
- }
- break;
- case NM_FORK:
- check_mt(ctx);
- {
- TCGv t0 = tcg_temp_new();
- TCGv t1 = tcg_temp_new();
-
- gen_load_gpr(t0, rt);
- gen_load_gpr(t1, rs);
- gen_helper_fork(t0, t1);
- tcg_temp_free(t0);
- tcg_temp_free(t1);
- }
- break;
- case NM_MFTR:
- case NM_MFHTR:
- check_cp0_enabled(ctx);
- if (rd == 0) {
- /* Treat as NOP. */
- return;
- }
- gen_mftr(env, ctx, rs, rt, extract32(ctx->opcode, 10, 1),
- extract32(ctx->opcode, 11, 5), extract32(ctx->opcode, 3, 1));
- break;
- case NM_MTTR:
- case NM_MTHTR:
- check_cp0_enabled(ctx);
- gen_mttr(env, ctx, rs, rt, extract32(ctx->opcode, 10, 1),
- extract32(ctx->opcode, 11, 5), extract32(ctx->opcode, 3, 1));
- break;
- case NM_YIELD:
- check_mt(ctx);
- {
- TCGv t0 = tcg_temp_new();
-
- gen_load_gpr(t0, rs);
- gen_helper_yield(t0, cpu_env, t0);
- gen_store_gpr(t0, rt);
- tcg_temp_free(t0);
- }
- break;
-#endif
- default:
- gen_reserved_instruction(ctx);
- break;
- }
-}
-
-/* dsp */
-static void gen_pool32axf_1_5_nanomips_insn(DisasContext *ctx, uint32_t opc,
- int ret, int v1, int v2)
-{
- TCGv_i32 t0;
- TCGv v0_t;
- TCGv v1_t;
-
- t0 = tcg_temp_new_i32();
-
- v0_t = tcg_temp_new();
- v1_t = tcg_temp_new();
-
- tcg_gen_movi_i32(t0, v2 >> 3);
-
- gen_load_gpr(v0_t, ret);
- gen_load_gpr(v1_t, v1);
-
- switch (opc) {
- case NM_MAQ_S_W_PHR:
- check_dsp(ctx);
- gen_helper_maq_s_w_phr(t0, v1_t, v0_t, cpu_env);
- break;
- case NM_MAQ_S_W_PHL:
- check_dsp(ctx);
- gen_helper_maq_s_w_phl(t0, v1_t, v0_t, cpu_env);
- break;
- case NM_MAQ_SA_W_PHR:
- check_dsp(ctx);
- gen_helper_maq_sa_w_phr(t0, v1_t, v0_t, cpu_env);
- break;
- case NM_MAQ_SA_W_PHL:
- check_dsp(ctx);
- gen_helper_maq_sa_w_phl(t0, v1_t, v0_t, cpu_env);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
-
- tcg_temp_free_i32(t0);
-
- tcg_temp_free(v0_t);
- tcg_temp_free(v1_t);
-}
-
-
-static void gen_pool32axf_1_nanomips_insn(DisasContext *ctx, uint32_t opc,
- int ret, int v1, int v2)
-{
- int16_t imm;
- TCGv t0 = tcg_temp_new();
- TCGv t1 = tcg_temp_new();
- TCGv v0_t = tcg_temp_new();
-
- gen_load_gpr(v0_t, v1);
-
- switch (opc) {
- case NM_POOL32AXF_1_0:
- check_dsp(ctx);
- switch (extract32(ctx->opcode, 12, 2)) {
- case NM_MFHI:
- gen_HILO(ctx, OPC_MFHI, v2 >> 3, ret);
- break;
- case NM_MFLO:
- gen_HILO(ctx, OPC_MFLO, v2 >> 3, ret);
- break;
- case NM_MTHI:
- gen_HILO(ctx, OPC_MTHI, v2 >> 3, v1);
- break;
- case NM_MTLO:
- gen_HILO(ctx, OPC_MTLO, v2 >> 3, v1);
- break;
- }
- break;
- case NM_POOL32AXF_1_1:
- check_dsp(ctx);
- switch (extract32(ctx->opcode, 12, 2)) {
- case NM_MTHLIP:
- tcg_gen_movi_tl(t0, v2);
- gen_helper_mthlip(t0, v0_t, cpu_env);
- break;
- case NM_SHILOV:
- tcg_gen_movi_tl(t0, v2 >> 3);
- gen_helper_shilo(t0, v0_t, cpu_env);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_POOL32AXF_1_3:
- check_dsp(ctx);
- imm = extract32(ctx->opcode, 14, 7);
- switch (extract32(ctx->opcode, 12, 2)) {
- case NM_RDDSP:
- tcg_gen_movi_tl(t0, imm);
- gen_helper_rddsp(t0, t0, cpu_env);
- gen_store_gpr(t0, ret);
- break;
- case NM_WRDSP:
- gen_load_gpr(t0, ret);
- tcg_gen_movi_tl(t1, imm);
- gen_helper_wrdsp(t0, t1, cpu_env);
- break;
- case NM_EXTP:
- tcg_gen_movi_tl(t0, v2 >> 3);
- tcg_gen_movi_tl(t1, v1);
- gen_helper_extp(t0, t0, t1, cpu_env);
- gen_store_gpr(t0, ret);
- break;
- case NM_EXTPDP:
- tcg_gen_movi_tl(t0, v2 >> 3);
- tcg_gen_movi_tl(t1, v1);
- gen_helper_extpdp(t0, t0, t1, cpu_env);
- gen_store_gpr(t0, ret);
- break;
- }
- break;
- case NM_POOL32AXF_1_4:
- check_dsp(ctx);
- tcg_gen_movi_tl(t0, v2 >> 2);
- switch (extract32(ctx->opcode, 12, 1)) {
- case NM_SHLL_QB:
- gen_helper_shll_qb(t0, t0, v0_t, cpu_env);
- gen_store_gpr(t0, ret);
- break;
- case NM_SHRL_QB:
- gen_helper_shrl_qb(t0, t0, v0_t);
- gen_store_gpr(t0, ret);
- break;
- }
- break;
- case NM_POOL32AXF_1_5:
- opc = extract32(ctx->opcode, 12, 2);
- gen_pool32axf_1_5_nanomips_insn(ctx, opc, ret, v1, v2);
- break;
- case NM_POOL32AXF_1_7:
- check_dsp(ctx);
- tcg_gen_movi_tl(t0, v2 >> 3);
- tcg_gen_movi_tl(t1, v1);
- switch (extract32(ctx->opcode, 12, 2)) {
- case NM_EXTR_W:
- gen_helper_extr_w(t0, t0, t1, cpu_env);
- gen_store_gpr(t0, ret);
- break;
- case NM_EXTR_R_W:
- gen_helper_extr_r_w(t0, t0, t1, cpu_env);
- gen_store_gpr(t0, ret);
- break;
- case NM_EXTR_RS_W:
- gen_helper_extr_rs_w(t0, t0, t1, cpu_env);
- gen_store_gpr(t0, ret);
- break;
- case NM_EXTR_S_H:
- gen_helper_extr_s_h(t0, t0, t1, cpu_env);
- gen_store_gpr(t0, ret);
- break;
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
-
- tcg_temp_free(t0);
- tcg_temp_free(t1);
- tcg_temp_free(v0_t);
-}
-
-static void gen_pool32axf_2_multiply(DisasContext *ctx, uint32_t opc,
- TCGv v0, TCGv v1, int rd)
-{
- TCGv_i32 t0;
-
- t0 = tcg_temp_new_i32();
-
- tcg_gen_movi_i32(t0, rd >> 3);
-
- switch (opc) {
- case NM_POOL32AXF_2_0_7:
- switch (extract32(ctx->opcode, 9, 3)) {
- case NM_DPA_W_PH:
- check_dsp_r2(ctx);
- gen_helper_dpa_w_ph(t0, v1, v0, cpu_env);
- break;
- case NM_DPAQ_S_W_PH:
- check_dsp(ctx);
- gen_helper_dpaq_s_w_ph(t0, v1, v0, cpu_env);
- break;
- case NM_DPS_W_PH:
- check_dsp_r2(ctx);
- gen_helper_dps_w_ph(t0, v1, v0, cpu_env);
- break;
- case NM_DPSQ_S_W_PH:
- check_dsp(ctx);
- gen_helper_dpsq_s_w_ph(t0, v1, v0, cpu_env);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_POOL32AXF_2_8_15:
- switch (extract32(ctx->opcode, 9, 3)) {
- case NM_DPAX_W_PH:
- check_dsp_r2(ctx);
- gen_helper_dpax_w_ph(t0, v0, v1, cpu_env);
- break;
- case NM_DPAQ_SA_L_W:
- check_dsp(ctx);
- gen_helper_dpaq_sa_l_w(t0, v0, v1, cpu_env);
- break;
- case NM_DPSX_W_PH:
- check_dsp_r2(ctx);
- gen_helper_dpsx_w_ph(t0, v0, v1, cpu_env);
- break;
- case NM_DPSQ_SA_L_W:
- check_dsp(ctx);
- gen_helper_dpsq_sa_l_w(t0, v0, v1, cpu_env);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_POOL32AXF_2_16_23:
- switch (extract32(ctx->opcode, 9, 3)) {
- case NM_DPAU_H_QBL:
- check_dsp(ctx);
- gen_helper_dpau_h_qbl(t0, v0, v1, cpu_env);
- break;
- case NM_DPAQX_S_W_PH:
- check_dsp_r2(ctx);
- gen_helper_dpaqx_s_w_ph(t0, v0, v1, cpu_env);
- break;
- case NM_DPSU_H_QBL:
- check_dsp(ctx);
- gen_helper_dpsu_h_qbl(t0, v0, v1, cpu_env);
- break;
- case NM_DPSQX_S_W_PH:
- check_dsp_r2(ctx);
- gen_helper_dpsqx_s_w_ph(t0, v0, v1, cpu_env);
- break;
- case NM_MULSA_W_PH:
- check_dsp_r2(ctx);
- gen_helper_mulsa_w_ph(t0, v0, v1, cpu_env);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_POOL32AXF_2_24_31:
- switch (extract32(ctx->opcode, 9, 3)) {
- case NM_DPAU_H_QBR:
- check_dsp(ctx);
- gen_helper_dpau_h_qbr(t0, v1, v0, cpu_env);
- break;
- case NM_DPAQX_SA_W_PH:
- check_dsp_r2(ctx);
- gen_helper_dpaqx_sa_w_ph(t0, v1, v0, cpu_env);
- break;
- case NM_DPSU_H_QBR:
- check_dsp(ctx);
- gen_helper_dpsu_h_qbr(t0, v1, v0, cpu_env);
- break;
- case NM_DPSQX_SA_W_PH:
- check_dsp_r2(ctx);
- gen_helper_dpsqx_sa_w_ph(t0, v1, v0, cpu_env);
- break;
- case NM_MULSAQ_S_W_PH:
- check_dsp(ctx);
- gen_helper_mulsaq_s_w_ph(t0, v1, v0, cpu_env);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
-
- tcg_temp_free_i32(t0);
-}
-
-static void gen_pool32axf_2_nanomips_insn(DisasContext *ctx, uint32_t opc,
- int rt, int rs, int rd)
-{
- int ret = rt;
- TCGv t0 = tcg_temp_new();
- TCGv t1 = tcg_temp_new();
- TCGv v0_t = tcg_temp_new();
- TCGv v1_t = tcg_temp_new();
-
- gen_load_gpr(v0_t, rt);
- gen_load_gpr(v1_t, rs);
-
- switch (opc) {
- case NM_POOL32AXF_2_0_7:
- switch (extract32(ctx->opcode, 9, 3)) {
- case NM_DPA_W_PH:
- case NM_DPAQ_S_W_PH:
- case NM_DPS_W_PH:
- case NM_DPSQ_S_W_PH:
- gen_pool32axf_2_multiply(ctx, opc, v0_t, v1_t, rd);
- break;
- case NM_BALIGN:
- check_dsp_r2(ctx);
- if (rt != 0) {
- gen_load_gpr(t0, rs);
- rd &= 3;
- if (rd != 0 && rd != 2) {
- tcg_gen_shli_tl(cpu_gpr[ret], cpu_gpr[ret], 8 * rd);
- tcg_gen_ext32u_tl(t0, t0);
- tcg_gen_shri_tl(t0, t0, 8 * (4 - rd));
- tcg_gen_or_tl(cpu_gpr[ret], cpu_gpr[ret], t0);
- }
- tcg_gen_ext32s_tl(cpu_gpr[ret], cpu_gpr[ret]);
- }
- break;
- case NM_MADD:
- check_dsp(ctx);
- {
- int acc = extract32(ctx->opcode, 14, 2);
- TCGv_i64 t2 = tcg_temp_new_i64();
- TCGv_i64 t3 = tcg_temp_new_i64();
-
- gen_load_gpr(t0, rt);
- gen_load_gpr(t1, rs);
- tcg_gen_ext_tl_i64(t2, t0);
- tcg_gen_ext_tl_i64(t3, t1);
- tcg_gen_mul_i64(t2, t2, t3);
- tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]);
- tcg_gen_add_i64(t2, t2, t3);
- tcg_temp_free_i64(t3);
- gen_move_low32(cpu_LO[acc], t2);
- gen_move_high32(cpu_HI[acc], t2);
- tcg_temp_free_i64(t2);
- }
- break;
- case NM_MULT:
- check_dsp(ctx);
- {
- int acc = extract32(ctx->opcode, 14, 2);
- TCGv_i32 t2 = tcg_temp_new_i32();
- TCGv_i32 t3 = tcg_temp_new_i32();
-
- gen_load_gpr(t0, rs);
- gen_load_gpr(t1, rt);
- tcg_gen_trunc_tl_i32(t2, t0);
- tcg_gen_trunc_tl_i32(t3, t1);
- tcg_gen_muls2_i32(t2, t3, t2, t3);
- tcg_gen_ext_i32_tl(cpu_LO[acc], t2);
- tcg_gen_ext_i32_tl(cpu_HI[acc], t3);
- tcg_temp_free_i32(t2);
- tcg_temp_free_i32(t3);
- }
- break;
- case NM_EXTRV_W:
- check_dsp(ctx);
- gen_load_gpr(v1_t, rs);
- tcg_gen_movi_tl(t0, rd >> 3);
- gen_helper_extr_w(t0, t0, v1_t, cpu_env);
- gen_store_gpr(t0, ret);
- break;
- }
- break;
- case NM_POOL32AXF_2_8_15:
- switch (extract32(ctx->opcode, 9, 3)) {
- case NM_DPAX_W_PH:
- case NM_DPAQ_SA_L_W:
- case NM_DPSX_W_PH:
- case NM_DPSQ_SA_L_W:
- gen_pool32axf_2_multiply(ctx, opc, v0_t, v1_t, rd);
- break;
- case NM_MADDU:
- check_dsp(ctx);
- {
- int acc = extract32(ctx->opcode, 14, 2);
- TCGv_i64 t2 = tcg_temp_new_i64();
- TCGv_i64 t3 = tcg_temp_new_i64();
-
- gen_load_gpr(t0, rs);
- gen_load_gpr(t1, rt);
- tcg_gen_ext32u_tl(t0, t0);
- tcg_gen_ext32u_tl(t1, t1);
- tcg_gen_extu_tl_i64(t2, t0);
- tcg_gen_extu_tl_i64(t3, t1);
- tcg_gen_mul_i64(t2, t2, t3);
- tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]);
- tcg_gen_add_i64(t2, t2, t3);
- tcg_temp_free_i64(t3);
- gen_move_low32(cpu_LO[acc], t2);
- gen_move_high32(cpu_HI[acc], t2);
- tcg_temp_free_i64(t2);
- }
- break;
- case NM_MULTU:
- check_dsp(ctx);
- {
- int acc = extract32(ctx->opcode, 14, 2);
- TCGv_i32 t2 = tcg_temp_new_i32();
- TCGv_i32 t3 = tcg_temp_new_i32();
-
- gen_load_gpr(t0, rs);
- gen_load_gpr(t1, rt);
- tcg_gen_trunc_tl_i32(t2, t0);
- tcg_gen_trunc_tl_i32(t3, t1);
- tcg_gen_mulu2_i32(t2, t3, t2, t3);
- tcg_gen_ext_i32_tl(cpu_LO[acc], t2);
- tcg_gen_ext_i32_tl(cpu_HI[acc], t3);
- tcg_temp_free_i32(t2);
- tcg_temp_free_i32(t3);
- }
- break;
- case NM_EXTRV_R_W:
- check_dsp(ctx);
- tcg_gen_movi_tl(t0, rd >> 3);
- gen_helper_extr_r_w(t0, t0, v1_t, cpu_env);
- gen_store_gpr(t0, ret);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_POOL32AXF_2_16_23:
- switch (extract32(ctx->opcode, 9, 3)) {
- case NM_DPAU_H_QBL:
- case NM_DPAQX_S_W_PH:
- case NM_DPSU_H_QBL:
- case NM_DPSQX_S_W_PH:
- case NM_MULSA_W_PH:
- gen_pool32axf_2_multiply(ctx, opc, v0_t, v1_t, rd);
- break;
- case NM_EXTPV:
- check_dsp(ctx);
- tcg_gen_movi_tl(t0, rd >> 3);
- gen_helper_extp(t0, t0, v1_t, cpu_env);
- gen_store_gpr(t0, ret);
- break;
- case NM_MSUB:
- check_dsp(ctx);
- {
- int acc = extract32(ctx->opcode, 14, 2);
- TCGv_i64 t2 = tcg_temp_new_i64();
- TCGv_i64 t3 = tcg_temp_new_i64();
-
- gen_load_gpr(t0, rs);
- gen_load_gpr(t1, rt);
- tcg_gen_ext_tl_i64(t2, t0);
- tcg_gen_ext_tl_i64(t3, t1);
- tcg_gen_mul_i64(t2, t2, t3);
- tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]);
- tcg_gen_sub_i64(t2, t3, t2);
- tcg_temp_free_i64(t3);
- gen_move_low32(cpu_LO[acc], t2);
- gen_move_high32(cpu_HI[acc], t2);
- tcg_temp_free_i64(t2);
- }
- break;
- case NM_EXTRV_RS_W:
- check_dsp(ctx);
- tcg_gen_movi_tl(t0, rd >> 3);
- gen_helper_extr_rs_w(t0, t0, v1_t, cpu_env);
- gen_store_gpr(t0, ret);
- break;
- }
- break;
- case NM_POOL32AXF_2_24_31:
- switch (extract32(ctx->opcode, 9, 3)) {
- case NM_DPAU_H_QBR:
- case NM_DPAQX_SA_W_PH:
- case NM_DPSU_H_QBR:
- case NM_DPSQX_SA_W_PH:
- case NM_MULSAQ_S_W_PH:
- gen_pool32axf_2_multiply(ctx, opc, v0_t, v1_t, rd);
- break;
- case NM_EXTPDPV:
- check_dsp(ctx);
- tcg_gen_movi_tl(t0, rd >> 3);
- gen_helper_extpdp(t0, t0, v1_t, cpu_env);
- gen_store_gpr(t0, ret);
- break;
- case NM_MSUBU:
- check_dsp(ctx);
- {
- int acc = extract32(ctx->opcode, 14, 2);
- TCGv_i64 t2 = tcg_temp_new_i64();
- TCGv_i64 t3 = tcg_temp_new_i64();
-
- gen_load_gpr(t0, rs);
- gen_load_gpr(t1, rt);
- tcg_gen_ext32u_tl(t0, t0);
- tcg_gen_ext32u_tl(t1, t1);
- tcg_gen_extu_tl_i64(t2, t0);
- tcg_gen_extu_tl_i64(t3, t1);
- tcg_gen_mul_i64(t2, t2, t3);
- tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]);
- tcg_gen_sub_i64(t2, t3, t2);
- tcg_temp_free_i64(t3);
- gen_move_low32(cpu_LO[acc], t2);
- gen_move_high32(cpu_HI[acc], t2);
- tcg_temp_free_i64(t2);
- }
- break;
- case NM_EXTRV_S_H:
- check_dsp(ctx);
- tcg_gen_movi_tl(t0, rd >> 3);
- gen_helper_extr_s_h(t0, t0, v0_t, cpu_env);
- gen_store_gpr(t0, ret);
- break;
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
-
- tcg_temp_free(t0);
- tcg_temp_free(t1);
-
- tcg_temp_free(v0_t);
- tcg_temp_free(v1_t);
-}
-
-static void gen_pool32axf_4_nanomips_insn(DisasContext *ctx, uint32_t opc,
- int rt, int rs)
-{
- int ret = rt;
- TCGv t0 = tcg_temp_new();
- TCGv v0_t = tcg_temp_new();
-
- gen_load_gpr(v0_t, rs);
-
- switch (opc) {
- case NM_ABSQ_S_QB:
- check_dsp_r2(ctx);
- gen_helper_absq_s_qb(v0_t, v0_t, cpu_env);
- gen_store_gpr(v0_t, ret);
- break;
- case NM_ABSQ_S_PH:
- check_dsp(ctx);
- gen_helper_absq_s_ph(v0_t, v0_t, cpu_env);
- gen_store_gpr(v0_t, ret);
- break;
- case NM_ABSQ_S_W:
- check_dsp(ctx);
- gen_helper_absq_s_w(v0_t, v0_t, cpu_env);
- gen_store_gpr(v0_t, ret);
- break;
- case NM_PRECEQ_W_PHL:
- check_dsp(ctx);
- tcg_gen_andi_tl(v0_t, v0_t, 0xFFFF0000);
- tcg_gen_ext32s_tl(v0_t, v0_t);
- gen_store_gpr(v0_t, ret);
- break;
- case NM_PRECEQ_W_PHR:
- check_dsp(ctx);
- tcg_gen_andi_tl(v0_t, v0_t, 0x0000FFFF);
- tcg_gen_shli_tl(v0_t, v0_t, 16);
- tcg_gen_ext32s_tl(v0_t, v0_t);
- gen_store_gpr(v0_t, ret);
- break;
- case NM_PRECEQU_PH_QBL:
- check_dsp(ctx);
- gen_helper_precequ_ph_qbl(v0_t, v0_t);
- gen_store_gpr(v0_t, ret);
- break;
- case NM_PRECEQU_PH_QBR:
- check_dsp(ctx);
- gen_helper_precequ_ph_qbr(v0_t, v0_t);
- gen_store_gpr(v0_t, ret);
- break;
- case NM_PRECEQU_PH_QBLA:
- check_dsp(ctx);
- gen_helper_precequ_ph_qbla(v0_t, v0_t);
- gen_store_gpr(v0_t, ret);
- break;
- case NM_PRECEQU_PH_QBRA:
- check_dsp(ctx);
- gen_helper_precequ_ph_qbra(v0_t, v0_t);
- gen_store_gpr(v0_t, ret);
- break;
- case NM_PRECEU_PH_QBL:
- check_dsp(ctx);
- gen_helper_preceu_ph_qbl(v0_t, v0_t);
- gen_store_gpr(v0_t, ret);
- break;
- case NM_PRECEU_PH_QBR:
- check_dsp(ctx);
- gen_helper_preceu_ph_qbr(v0_t, v0_t);
- gen_store_gpr(v0_t, ret);
- break;
- case NM_PRECEU_PH_QBLA:
- check_dsp(ctx);
- gen_helper_preceu_ph_qbla(v0_t, v0_t);
- gen_store_gpr(v0_t, ret);
- break;
- case NM_PRECEU_PH_QBRA:
- check_dsp(ctx);
- gen_helper_preceu_ph_qbra(v0_t, v0_t);
- gen_store_gpr(v0_t, ret);
- break;
- case NM_REPLV_PH:
- check_dsp(ctx);
- tcg_gen_ext16u_tl(v0_t, v0_t);
- tcg_gen_shli_tl(t0, v0_t, 16);
- tcg_gen_or_tl(v0_t, v0_t, t0);
- tcg_gen_ext32s_tl(v0_t, v0_t);
- gen_store_gpr(v0_t, ret);
- break;
- case NM_REPLV_QB:
- check_dsp(ctx);
- tcg_gen_ext8u_tl(v0_t, v0_t);
- tcg_gen_shli_tl(t0, v0_t, 8);
- tcg_gen_or_tl(v0_t, v0_t, t0);
- tcg_gen_shli_tl(t0, v0_t, 16);
- tcg_gen_or_tl(v0_t, v0_t, t0);
- tcg_gen_ext32s_tl(v0_t, v0_t);
- gen_store_gpr(v0_t, ret);
- break;
- case NM_BITREV:
- check_dsp(ctx);
- gen_helper_bitrev(v0_t, v0_t);
- gen_store_gpr(v0_t, ret);
- break;
- case NM_INSV:
- check_dsp(ctx);
- {
- TCGv tv0 = tcg_temp_new();
-
- gen_load_gpr(tv0, rt);
- gen_helper_insv(v0_t, cpu_env, v0_t, tv0);
- gen_store_gpr(v0_t, ret);
- tcg_temp_free(tv0);
- }
- break;
- case NM_RADDU_W_QB:
- check_dsp(ctx);
- gen_helper_raddu_w_qb(v0_t, v0_t);
- gen_store_gpr(v0_t, ret);
- break;
- case NM_BITSWAP:
- gen_bitswap(ctx, OPC_BITSWAP, ret, rs);
- break;
- case NM_CLO:
- check_nms(ctx);
- gen_cl(ctx, OPC_CLO, ret, rs);
- break;
- case NM_CLZ:
- check_nms(ctx);
- gen_cl(ctx, OPC_CLZ, ret, rs);
- break;
- case NM_WSBH:
- gen_bshfl(ctx, OPC_WSBH, ret, rs);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
-
- tcg_temp_free(v0_t);
- tcg_temp_free(t0);
-}
-
-static void gen_pool32axf_7_nanomips_insn(DisasContext *ctx, uint32_t opc,
- int rt, int rs, int rd)
-{
- TCGv t0 = tcg_temp_new();
- TCGv rs_t = tcg_temp_new();
-
- gen_load_gpr(rs_t, rs);
-
- switch (opc) {
- case NM_SHRA_R_QB:
- check_dsp_r2(ctx);
- tcg_gen_movi_tl(t0, rd >> 2);
- switch (extract32(ctx->opcode, 12, 1)) {
- case 0:
- /* NM_SHRA_QB */
- gen_helper_shra_qb(t0, t0, rs_t);
- gen_store_gpr(t0, rt);
- break;
- case 1:
- /* NM_SHRA_R_QB */
- gen_helper_shra_r_qb(t0, t0, rs_t);
- gen_store_gpr(t0, rt);
- break;
- }
- break;
- case NM_SHRL_PH:
- check_dsp_r2(ctx);
- tcg_gen_movi_tl(t0, rd >> 1);
- gen_helper_shrl_ph(t0, t0, rs_t);
- gen_store_gpr(t0, rt);
- break;
- case NM_REPL_QB:
- check_dsp(ctx);
- {
- int16_t imm;
- target_long result;
- imm = extract32(ctx->opcode, 13, 8);
- result = (uint32_t)imm << 24 |
- (uint32_t)imm << 16 |
- (uint32_t)imm << 8 |
- (uint32_t)imm;
- result = (int32_t)result;
- tcg_gen_movi_tl(t0, result);
- gen_store_gpr(t0, rt);
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- tcg_temp_free(t0);
- tcg_temp_free(rs_t);
-}
-
-
-static void gen_pool32axf_nanomips_insn(CPUMIPSState *env, DisasContext *ctx)
-{
- int rt = extract32(ctx->opcode, 21, 5);
- int rs = extract32(ctx->opcode, 16, 5);
- int rd = extract32(ctx->opcode, 11, 5);
-
- switch (extract32(ctx->opcode, 6, 3)) {
- case NM_POOL32AXF_1:
- {
- int32_t op1 = extract32(ctx->opcode, 9, 3);
- gen_pool32axf_1_nanomips_insn(ctx, op1, rt, rs, rd);
- }
- break;
- case NM_POOL32AXF_2:
- {
- int32_t op1 = extract32(ctx->opcode, 12, 2);
- gen_pool32axf_2_nanomips_insn(ctx, op1, rt, rs, rd);
- }
- break;
- case NM_POOL32AXF_4:
- {
- int32_t op1 = extract32(ctx->opcode, 9, 7);
- gen_pool32axf_4_nanomips_insn(ctx, op1, rt, rs);
- }
- break;
- case NM_POOL32AXF_5:
- switch (extract32(ctx->opcode, 9, 7)) {
-#ifndef CONFIG_USER_ONLY
- case NM_TLBP:
- gen_cp0(env, ctx, OPC_TLBP, 0, 0);
- break;
- case NM_TLBR:
- gen_cp0(env, ctx, OPC_TLBR, 0, 0);
- break;
- case NM_TLBWI:
- gen_cp0(env, ctx, OPC_TLBWI, 0, 0);
- break;
- case NM_TLBWR:
- gen_cp0(env, ctx, OPC_TLBWR, 0, 0);
- break;
- case NM_TLBINV:
- gen_cp0(env, ctx, OPC_TLBINV, 0, 0);
- break;
- case NM_TLBINVF:
- gen_cp0(env, ctx, OPC_TLBINVF, 0, 0);
- break;
- case NM_DI:
- check_cp0_enabled(ctx);
- {
- TCGv t0 = tcg_temp_new();
-
- save_cpu_state(ctx, 1);
- gen_helper_di(t0, cpu_env);
- gen_store_gpr(t0, rt);
- /* Stop translation as we may have switched the execution mode */
- ctx->base.is_jmp = DISAS_STOP;
- tcg_temp_free(t0);
- }
- break;
- case NM_EI:
- check_cp0_enabled(ctx);
- {
- TCGv t0 = tcg_temp_new();
-
- save_cpu_state(ctx, 1);
- gen_helper_ei(t0, cpu_env);
- gen_store_gpr(t0, rt);
- /* Stop translation as we may have switched the execution mode */
- ctx->base.is_jmp = DISAS_STOP;
- tcg_temp_free(t0);
- }
- break;
- case NM_RDPGPR:
- check_cp0_enabled(ctx);
- gen_load_srsgpr(rs, rt);
- break;
- case NM_WRPGPR:
- check_cp0_enabled(ctx);
- gen_store_srsgpr(rs, rt);
- break;
- case NM_WAIT:
- gen_cp0(env, ctx, OPC_WAIT, 0, 0);
- break;
- case NM_DERET:
- gen_cp0(env, ctx, OPC_DERET, 0, 0);
- break;
- case NM_ERETX:
- gen_cp0(env, ctx, OPC_ERET, 0, 0);
- break;
-#endif
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_POOL32AXF_7:
- {
- int32_t op1 = extract32(ctx->opcode, 9, 3);
- gen_pool32axf_7_nanomips_insn(ctx, op1, rt, rs, rd);
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
-}
-
-/* Immediate Value Compact Branches */
-static void gen_compute_imm_branch(DisasContext *ctx, uint32_t opc,
- int rt, int32_t imm, int32_t offset)
-{
- TCGCond cond = TCG_COND_ALWAYS;
- TCGv t0 = tcg_temp_new();
- TCGv t1 = tcg_temp_new();
-
- gen_load_gpr(t0, rt);
- tcg_gen_movi_tl(t1, imm);
- ctx->btarget = addr_add(ctx, ctx->base.pc_next + 4, offset);
-
- /* Load needed operands and calculate btarget */
- switch (opc) {
- case NM_BEQIC:
- if (rt == 0 && imm == 0) {
- /* Unconditional branch */
- } else if (rt == 0 && imm != 0) {
- /* Treat as NOP */
- goto out;
- } else {
- cond = TCG_COND_EQ;
- }
- break;
- case NM_BBEQZC:
- case NM_BBNEZC:
- check_nms(ctx);
- if (imm >= 32 && !(ctx->hflags & MIPS_HFLAG_64)) {
- gen_reserved_instruction(ctx);
- goto out;
- } else if (rt == 0 && opc == NM_BBEQZC) {
- /* Unconditional branch */
- } else if (rt == 0 && opc == NM_BBNEZC) {
- /* Treat as NOP */
- goto out;
- } else {
- tcg_gen_shri_tl(t0, t0, imm);
- tcg_gen_andi_tl(t0, t0, 1);
- tcg_gen_movi_tl(t1, 0);
- if (opc == NM_BBEQZC) {
- cond = TCG_COND_EQ;
- } else {
- cond = TCG_COND_NE;
- }
- }
- break;
- case NM_BNEIC:
- if (rt == 0 && imm == 0) {
- /* Treat as NOP */
- goto out;
- } else if (rt == 0 && imm != 0) {
- /* Unconditional branch */
- } else {
- cond = TCG_COND_NE;
- }
- break;
- case NM_BGEIC:
- if (rt == 0 && imm == 0) {
- /* Unconditional branch */
- } else {
- cond = TCG_COND_GE;
- }
- break;
- case NM_BLTIC:
- cond = TCG_COND_LT;
- break;
- case NM_BGEIUC:
- if (rt == 0 && imm == 0) {
- /* Unconditional branch */
- } else {
- cond = TCG_COND_GEU;
- }
- break;
- case NM_BLTIUC:
- cond = TCG_COND_LTU;
- break;
- default:
- MIPS_INVAL("Immediate Value Compact branch");
- gen_reserved_instruction(ctx);
- goto out;
- }
-
- /* branch completion */
- clear_branch_hflags(ctx);
- ctx->base.is_jmp = DISAS_NORETURN;
-
- if (cond == TCG_COND_ALWAYS) {
- /* Unconditional compact branch */
- gen_goto_tb(ctx, 0, ctx->btarget);
- } else {
- /* Conditional compact branch */
- TCGLabel *fs = gen_new_label();
-
- tcg_gen_brcond_tl(tcg_invert_cond(cond), t0, t1, fs);
-
- gen_goto_tb(ctx, 1, ctx->btarget);
- gen_set_label(fs);
-
- gen_goto_tb(ctx, 0, ctx->base.pc_next + 4);
- }
-
-out:
- tcg_temp_free(t0);
- tcg_temp_free(t1);
-}
-
-/* P.BALRSC type nanoMIPS R6 branches: BALRSC and BRSC */
-static void gen_compute_nanomips_pbalrsc_branch(DisasContext *ctx, int rs,
- int rt)
-{
- TCGv t0 = tcg_temp_new();
- TCGv t1 = tcg_temp_new();
-
- /* load rs */
- gen_load_gpr(t0, rs);
-
- /* link */
- if (rt != 0) {
- tcg_gen_movi_tl(cpu_gpr[rt], ctx->base.pc_next + 4);
- }
-
- /* calculate btarget */
- tcg_gen_shli_tl(t0, t0, 1);
- tcg_gen_movi_tl(t1, ctx->base.pc_next + 4);
- gen_op_addr_add(ctx, btarget, t1, t0);
-
- /* branch completion */
- clear_branch_hflags(ctx);
- ctx->base.is_jmp = DISAS_NORETURN;
-
- /* unconditional branch to register */
- tcg_gen_mov_tl(cpu_PC, btarget);
- tcg_gen_lookup_and_goto_ptr();
-
- tcg_temp_free(t0);
- tcg_temp_free(t1);
-}
-
-/* nanoMIPS Branches */
-static void gen_compute_compact_branch_nm(DisasContext *ctx, uint32_t opc,
- int rs, int rt, int32_t offset)
-{
- int bcond_compute = 0;
- TCGv t0 = tcg_temp_new();
- TCGv t1 = tcg_temp_new();
-
- /* Load needed operands and calculate btarget */
- switch (opc) {
- /* compact branch */
- case OPC_BGEC:
- case OPC_BLTC:
- gen_load_gpr(t0, rs);
- gen_load_gpr(t1, rt);
- bcond_compute = 1;
- ctx->btarget = addr_add(ctx, ctx->base.pc_next + 4, offset);
- break;
- case OPC_BGEUC:
- case OPC_BLTUC:
- if (rs == 0 || rs == rt) {
- /* OPC_BLEZALC, OPC_BGEZALC */
- /* OPC_BGTZALC, OPC_BLTZALC */
- tcg_gen_movi_tl(cpu_gpr[31], ctx->base.pc_next + 4);
- }
- gen_load_gpr(t0, rs);
- gen_load_gpr(t1, rt);
- bcond_compute = 1;
- ctx->btarget = addr_add(ctx, ctx->base.pc_next + 4, offset);
- break;
- case OPC_BC:
- ctx->btarget = addr_add(ctx, ctx->base.pc_next + 4, offset);
- break;
- case OPC_BEQZC:
- if (rs != 0) {
- /* OPC_BEQZC, OPC_BNEZC */
- gen_load_gpr(t0, rs);
- bcond_compute = 1;
- ctx->btarget = addr_add(ctx, ctx->base.pc_next + 4, offset);
- } else {
- /* OPC_JIC, OPC_JIALC */
- TCGv tbase = tcg_temp_new();
- TCGv toffset = tcg_temp_new();
-
- gen_load_gpr(tbase, rt);
- tcg_gen_movi_tl(toffset, offset);
- gen_op_addr_add(ctx, btarget, tbase, toffset);
- tcg_temp_free(tbase);
- tcg_temp_free(toffset);
- }
- break;
- default:
- MIPS_INVAL("Compact branch/jump");
- gen_reserved_instruction(ctx);
- goto out;
- }
-
- if (bcond_compute == 0) {
- /* Unconditional compact branch */
- switch (opc) {
- case OPC_BC:
- gen_goto_tb(ctx, 0, ctx->btarget);
- break;
- default:
- MIPS_INVAL("Compact branch/jump");
- gen_reserved_instruction(ctx);
- goto out;
- }
- } else {
- /* Conditional compact branch */
- TCGLabel *fs = gen_new_label();
-
- switch (opc) {
- case OPC_BGEUC:
- if (rs == 0 && rt != 0) {
- /* OPC_BLEZALC */
- tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_LE), t1, 0, fs);
- } else if (rs != 0 && rt != 0 && rs == rt) {
- /* OPC_BGEZALC */
- tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_GE), t1, 0, fs);
- } else {
- /* OPC_BGEUC */
- tcg_gen_brcond_tl(tcg_invert_cond(TCG_COND_GEU), t0, t1, fs);
- }
- break;
- case OPC_BLTUC:
- if (rs == 0 && rt != 0) {
- /* OPC_BGTZALC */
- tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_GT), t1, 0, fs);
- } else if (rs != 0 && rt != 0 && rs == rt) {
- /* OPC_BLTZALC */
- tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_LT), t1, 0, fs);
- } else {
- /* OPC_BLTUC */
- tcg_gen_brcond_tl(tcg_invert_cond(TCG_COND_LTU), t0, t1, fs);
- }
- break;
- case OPC_BGEC:
- if (rs == 0 && rt != 0) {
- /* OPC_BLEZC */
- tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_LE), t1, 0, fs);
- } else if (rs != 0 && rt != 0 && rs == rt) {
- /* OPC_BGEZC */
- tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_GE), t1, 0, fs);
- } else {
- /* OPC_BGEC */
- tcg_gen_brcond_tl(tcg_invert_cond(TCG_COND_GE), t0, t1, fs);
- }
- break;
- case OPC_BLTC:
- if (rs == 0 && rt != 0) {
- /* OPC_BGTZC */
- tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_GT), t1, 0, fs);
- } else if (rs != 0 && rt != 0 && rs == rt) {
- /* OPC_BLTZC */
- tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_LT), t1, 0, fs);
- } else {
- /* OPC_BLTC */
- tcg_gen_brcond_tl(tcg_invert_cond(TCG_COND_LT), t0, t1, fs);
- }
- break;
- case OPC_BEQZC:
- tcg_gen_brcondi_tl(tcg_invert_cond(TCG_COND_EQ), t0, 0, fs);
- break;
- default:
- MIPS_INVAL("Compact conditional branch/jump");
- gen_reserved_instruction(ctx);
- goto out;
- }
-
- /* branch completion */
- clear_branch_hflags(ctx);
- ctx->base.is_jmp = DISAS_NORETURN;
-
- /* Generating branch here as compact branches don't have delay slot */
- gen_goto_tb(ctx, 1, ctx->btarget);
- gen_set_label(fs);
-
- gen_goto_tb(ctx, 0, ctx->base.pc_next + 4);
- }
-
-out:
- tcg_temp_free(t0);
- tcg_temp_free(t1);
-}
-
-
-/* nanoMIPS CP1 Branches */
-static void gen_compute_branch_cp1_nm(DisasContext *ctx, uint32_t op,
- int32_t ft, int32_t offset)
-{
- target_ulong btarget;
- TCGv_i64 t0 = tcg_temp_new_i64();
-
- gen_load_fpr64(ctx, t0, ft);
- tcg_gen_andi_i64(t0, t0, 1);
-
- btarget = addr_add(ctx, ctx->base.pc_next + 4, offset);
-
- switch (op) {
- case NM_BC1EQZC:
- tcg_gen_xori_i64(t0, t0, 1);
- ctx->hflags |= MIPS_HFLAG_BC;
- break;
- case NM_BC1NEZC:
- /* t0 already set */
- ctx->hflags |= MIPS_HFLAG_BC;
- break;
- default:
- MIPS_INVAL("cp1 cond branch");
- gen_reserved_instruction(ctx);
- goto out;
- }
-
- tcg_gen_trunc_i64_tl(bcond, t0);
-
- ctx->btarget = btarget;
-
-out:
- tcg_temp_free_i64(t0);
-}
-
-
-static void gen_p_lsx(DisasContext *ctx, int rd, int rs, int rt)
-{
- TCGv t0, t1;
- t0 = tcg_temp_new();
- t1 = tcg_temp_new();
-
- gen_load_gpr(t0, rs);
- gen_load_gpr(t1, rt);
-
- if ((extract32(ctx->opcode, 6, 1)) == 1) {
- /* PP.LSXS instructions require shifting */
- switch (extract32(ctx->opcode, 7, 4)) {
- case NM_SHXS:
- check_nms(ctx);
- /* fall through */
- case NM_LHXS:
- case NM_LHUXS:
- tcg_gen_shli_tl(t0, t0, 1);
- break;
- case NM_SWXS:
- check_nms(ctx);
- /* fall through */
- case NM_LWXS:
- case NM_LWC1XS:
- case NM_SWC1XS:
- tcg_gen_shli_tl(t0, t0, 2);
- break;
- case NM_LDC1XS:
- case NM_SDC1XS:
- tcg_gen_shli_tl(t0, t0, 3);
- break;
- }
- }
- gen_op_addr_add(ctx, t0, t0, t1);
-
- switch (extract32(ctx->opcode, 7, 4)) {
- case NM_LBX:
- tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx,
- MO_SB);
- gen_store_gpr(t0, rd);
- break;
- case NM_LHX:
- /*case NM_LHXS:*/
- tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx,
- MO_TESW);
- gen_store_gpr(t0, rd);
- break;
- case NM_LWX:
- /*case NM_LWXS:*/
- tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx,
- MO_TESL);
- gen_store_gpr(t0, rd);
- break;
- case NM_LBUX:
- tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx,
- MO_UB);
- gen_store_gpr(t0, rd);
- break;
- case NM_LHUX:
- /*case NM_LHUXS:*/
- tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx,
- MO_TEUW);
- gen_store_gpr(t0, rd);
- break;
- case NM_SBX:
- check_nms(ctx);
- gen_load_gpr(t1, rd);
- tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx,
- MO_8);
- break;
- case NM_SHX:
- /*case NM_SHXS:*/
- check_nms(ctx);
- gen_load_gpr(t1, rd);
- tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx,
- MO_TEUW);
- break;
- case NM_SWX:
- /*case NM_SWXS:*/
- check_nms(ctx);
- gen_load_gpr(t1, rd);
- tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx,
- MO_TEUL);
- break;
- case NM_LWC1X:
- /*case NM_LWC1XS:*/
- case NM_LDC1X:
- /*case NM_LDC1XS:*/
- case NM_SWC1X:
- /*case NM_SWC1XS:*/
- case NM_SDC1X:
- /*case NM_SDC1XS:*/
- if (ctx->CP0_Config1 & (1 << CP0C1_FP)) {
- check_cp1_enabled(ctx);
- switch (extract32(ctx->opcode, 7, 4)) {
- case NM_LWC1X:
- /*case NM_LWC1XS:*/
- gen_flt_ldst(ctx, OPC_LWC1, rd, t0);
- break;
- case NM_LDC1X:
- /*case NM_LDC1XS:*/
- gen_flt_ldst(ctx, OPC_LDC1, rd, t0);
- break;
- case NM_SWC1X:
- /*case NM_SWC1XS:*/
- gen_flt_ldst(ctx, OPC_SWC1, rd, t0);
- break;
- case NM_SDC1X:
- /*case NM_SDC1XS:*/
- gen_flt_ldst(ctx, OPC_SDC1, rd, t0);
- break;
- }
- } else {
- generate_exception_err(ctx, EXCP_CpU, 1);
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
-
- tcg_temp_free(t0);
- tcg_temp_free(t1);
-}
-
-static void gen_pool32f_nanomips_insn(DisasContext *ctx)
-{
- int rt, rs, rd;
-
- rt = extract32(ctx->opcode, 21, 5);
- rs = extract32(ctx->opcode, 16, 5);
- rd = extract32(ctx->opcode, 11, 5);
-
- if (!(ctx->CP0_Config1 & (1 << CP0C1_FP))) {
- gen_reserved_instruction(ctx);
- return;
- }
- check_cp1_enabled(ctx);
- switch (extract32(ctx->opcode, 0, 3)) {
- case NM_POOL32F_0:
- switch (extract32(ctx->opcode, 3, 7)) {
- case NM_RINT_S:
- gen_farith(ctx, OPC_RINT_S, 0, rt, rs, 0);
- break;
- case NM_RINT_D:
- gen_farith(ctx, OPC_RINT_D, 0, rt, rs, 0);
- break;
- case NM_CLASS_S:
- gen_farith(ctx, OPC_CLASS_S, 0, rt, rs, 0);
- break;
- case NM_CLASS_D:
- gen_farith(ctx, OPC_CLASS_D, 0, rt, rs, 0);
- break;
- case NM_ADD_S:
- gen_farith(ctx, OPC_ADD_S, rt, rs, rd, 0);
- break;
- case NM_ADD_D:
- gen_farith(ctx, OPC_ADD_D, rt, rs, rd, 0);
- break;
- case NM_SUB_S:
- gen_farith(ctx, OPC_SUB_S, rt, rs, rd, 0);
- break;
- case NM_SUB_D:
- gen_farith(ctx, OPC_SUB_D, rt, rs, rd, 0);
- break;
- case NM_MUL_S:
- gen_farith(ctx, OPC_MUL_S, rt, rs, rd, 0);
- break;
- case NM_MUL_D:
- gen_farith(ctx, OPC_MUL_D, rt, rs, rd, 0);
- break;
- case NM_DIV_S:
- gen_farith(ctx, OPC_DIV_S, rt, rs, rd, 0);
- break;
- case NM_DIV_D:
- gen_farith(ctx, OPC_DIV_D, rt, rs, rd, 0);
- break;
- case NM_SELEQZ_S:
- gen_sel_s(ctx, OPC_SELEQZ_S, rd, rt, rs);
- break;
- case NM_SELEQZ_D:
- gen_sel_d(ctx, OPC_SELEQZ_D, rd, rt, rs);
- break;
- case NM_SELNEZ_S:
- gen_sel_s(ctx, OPC_SELNEZ_S, rd, rt, rs);
- break;
- case NM_SELNEZ_D:
- gen_sel_d(ctx, OPC_SELNEZ_D, rd, rt, rs);
- break;
- case NM_SEL_S:
- gen_sel_s(ctx, OPC_SEL_S, rd, rt, rs);
- break;
- case NM_SEL_D:
- gen_sel_d(ctx, OPC_SEL_D, rd, rt, rs);
- break;
- case NM_MADDF_S:
- gen_farith(ctx, OPC_MADDF_S, rt, rs, rd, 0);
- break;
- case NM_MADDF_D:
- gen_farith(ctx, OPC_MADDF_D, rt, rs, rd, 0);
- break;
- case NM_MSUBF_S:
- gen_farith(ctx, OPC_MSUBF_S, rt, rs, rd, 0);
- break;
- case NM_MSUBF_D:
- gen_farith(ctx, OPC_MSUBF_D, rt, rs, rd, 0);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_POOL32F_3:
- switch (extract32(ctx->opcode, 3, 3)) {
- case NM_MIN_FMT:
- switch (extract32(ctx->opcode, 9, 1)) {
- case FMT_SDPS_S:
- gen_farith(ctx, OPC_MIN_S, rt, rs, rd, 0);
- break;
- case FMT_SDPS_D:
- gen_farith(ctx, OPC_MIN_D, rt, rs, rd, 0);
- break;
- }
- break;
- case NM_MAX_FMT:
- switch (extract32(ctx->opcode, 9, 1)) {
- case FMT_SDPS_S:
- gen_farith(ctx, OPC_MAX_S, rt, rs, rd, 0);
- break;
- case FMT_SDPS_D:
- gen_farith(ctx, OPC_MAX_D, rt, rs, rd, 0);
- break;
- }
- break;
- case NM_MINA_FMT:
- switch (extract32(ctx->opcode, 9, 1)) {
- case FMT_SDPS_S:
- gen_farith(ctx, OPC_MINA_S, rt, rs, rd, 0);
- break;
- case FMT_SDPS_D:
- gen_farith(ctx, OPC_MINA_D, rt, rs, rd, 0);
- break;
- }
- break;
- case NM_MAXA_FMT:
- switch (extract32(ctx->opcode, 9, 1)) {
- case FMT_SDPS_S:
- gen_farith(ctx, OPC_MAXA_S, rt, rs, rd, 0);
- break;
- case FMT_SDPS_D:
- gen_farith(ctx, OPC_MAXA_D, rt, rs, rd, 0);
- break;
- }
- break;
- case NM_POOL32FXF:
- switch (extract32(ctx->opcode, 6, 8)) {
- case NM_CFC1:
- gen_cp1(ctx, OPC_CFC1, rt, rs);
- break;
- case NM_CTC1:
- gen_cp1(ctx, OPC_CTC1, rt, rs);
- break;
- case NM_MFC1:
- gen_cp1(ctx, OPC_MFC1, rt, rs);
- break;
- case NM_MTC1:
- gen_cp1(ctx, OPC_MTC1, rt, rs);
- break;
- case NM_MFHC1:
- gen_cp1(ctx, OPC_MFHC1, rt, rs);
- break;
- case NM_MTHC1:
- gen_cp1(ctx, OPC_MTHC1, rt, rs);
- break;
- case NM_CVT_S_PL:
- gen_farith(ctx, OPC_CVT_S_PL, -1, rs, rt, 0);
- break;
- case NM_CVT_S_PU:
- gen_farith(ctx, OPC_CVT_S_PU, -1, rs, rt, 0);
- break;
- default:
- switch (extract32(ctx->opcode, 6, 9)) {
- case NM_CVT_L_S:
- gen_farith(ctx, OPC_CVT_L_S, -1, rs, rt, 0);
- break;
- case NM_CVT_L_D:
- gen_farith(ctx, OPC_CVT_L_D, -1, rs, rt, 0);
- break;
- case NM_CVT_W_S:
- gen_farith(ctx, OPC_CVT_W_S, -1, rs, rt, 0);
- break;
- case NM_CVT_W_D:
- gen_farith(ctx, OPC_CVT_W_D, -1, rs, rt, 0);
- break;
- case NM_RSQRT_S:
- gen_farith(ctx, OPC_RSQRT_S, -1, rs, rt, 0);
- break;
- case NM_RSQRT_D:
- gen_farith(ctx, OPC_RSQRT_D, -1, rs, rt, 0);
- break;
- case NM_SQRT_S:
- gen_farith(ctx, OPC_SQRT_S, -1, rs, rt, 0);
- break;
- case NM_SQRT_D:
- gen_farith(ctx, OPC_SQRT_D, -1, rs, rt, 0);
- break;
- case NM_RECIP_S:
- gen_farith(ctx, OPC_RECIP_S, -1, rs, rt, 0);
- break;
- case NM_RECIP_D:
- gen_farith(ctx, OPC_RECIP_D, -1, rs, rt, 0);
- break;
- case NM_FLOOR_L_S:
- gen_farith(ctx, OPC_FLOOR_L_S, -1, rs, rt, 0);
- break;
- case NM_FLOOR_L_D:
- gen_farith(ctx, OPC_FLOOR_L_D, -1, rs, rt, 0);
- break;
- case NM_FLOOR_W_S:
- gen_farith(ctx, OPC_FLOOR_W_S, -1, rs, rt, 0);
- break;
- case NM_FLOOR_W_D:
- gen_farith(ctx, OPC_FLOOR_W_D, -1, rs, rt, 0);
- break;
- case NM_CEIL_L_S:
- gen_farith(ctx, OPC_CEIL_L_S, -1, rs, rt, 0);
- break;
- case NM_CEIL_L_D:
- gen_farith(ctx, OPC_CEIL_L_D, -1, rs, rt, 0);
- break;
- case NM_CEIL_W_S:
- gen_farith(ctx, OPC_CEIL_W_S, -1, rs, rt, 0);
- break;
- case NM_CEIL_W_D:
- gen_farith(ctx, OPC_CEIL_W_D, -1, rs, rt, 0);
- break;
- case NM_TRUNC_L_S:
- gen_farith(ctx, OPC_TRUNC_L_S, -1, rs, rt, 0);
- break;
- case NM_TRUNC_L_D:
- gen_farith(ctx, OPC_TRUNC_L_D, -1, rs, rt, 0);
- break;
- case NM_TRUNC_W_S:
- gen_farith(ctx, OPC_TRUNC_W_S, -1, rs, rt, 0);
- break;
- case NM_TRUNC_W_D:
- gen_farith(ctx, OPC_TRUNC_W_D, -1, rs, rt, 0);
- break;
- case NM_ROUND_L_S:
- gen_farith(ctx, OPC_ROUND_L_S, -1, rs, rt, 0);
- break;
- case NM_ROUND_L_D:
- gen_farith(ctx, OPC_ROUND_L_D, -1, rs, rt, 0);
- break;
- case NM_ROUND_W_S:
- gen_farith(ctx, OPC_ROUND_W_S, -1, rs, rt, 0);
- break;
- case NM_ROUND_W_D:
- gen_farith(ctx, OPC_ROUND_W_D, -1, rs, rt, 0);
- break;
- case NM_MOV_S:
- gen_farith(ctx, OPC_MOV_S, -1, rs, rt, 0);
- break;
- case NM_MOV_D:
- gen_farith(ctx, OPC_MOV_D, -1, rs, rt, 0);
- break;
- case NM_ABS_S:
- gen_farith(ctx, OPC_ABS_S, -1, rs, rt, 0);
- break;
- case NM_ABS_D:
- gen_farith(ctx, OPC_ABS_D, -1, rs, rt, 0);
- break;
- case NM_NEG_S:
- gen_farith(ctx, OPC_NEG_S, -1, rs, rt, 0);
- break;
- case NM_NEG_D:
- gen_farith(ctx, OPC_NEG_D, -1, rs, rt, 0);
- break;
- case NM_CVT_D_S:
- gen_farith(ctx, OPC_CVT_D_S, -1, rs, rt, 0);
- break;
- case NM_CVT_D_W:
- gen_farith(ctx, OPC_CVT_D_W, -1, rs, rt, 0);
- break;
- case NM_CVT_D_L:
- gen_farith(ctx, OPC_CVT_D_L, -1, rs, rt, 0);
- break;
- case NM_CVT_S_D:
- gen_farith(ctx, OPC_CVT_S_D, -1, rs, rt, 0);
- break;
- case NM_CVT_S_W:
- gen_farith(ctx, OPC_CVT_S_W, -1, rs, rt, 0);
- break;
- case NM_CVT_S_L:
- gen_farith(ctx, OPC_CVT_S_L, -1, rs, rt, 0);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- }
- break;
- }
- break;
- case NM_POOL32F_5:
- switch (extract32(ctx->opcode, 3, 3)) {
- case NM_CMP_CONDN_S:
- gen_r6_cmp_s(ctx, extract32(ctx->opcode, 6, 5), rt, rs, rd);
- break;
- case NM_CMP_CONDN_D:
- gen_r6_cmp_d(ctx, extract32(ctx->opcode, 6, 5), rt, rs, rd);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
-}
-
-static void gen_pool32a5_nanomips_insn(DisasContext *ctx, int opc,
- int rd, int rs, int rt)
-{
- int ret = rd;
- TCGv t0 = tcg_temp_new();
- TCGv v1_t = tcg_temp_new();
- TCGv v2_t = tcg_temp_new();
-
- gen_load_gpr(v1_t, rs);
- gen_load_gpr(v2_t, rt);
-
- switch (opc) {
- case NM_CMP_EQ_PH:
- check_dsp(ctx);
- gen_helper_cmp_eq_ph(v1_t, v2_t, cpu_env);
- break;
- case NM_CMP_LT_PH:
- check_dsp(ctx);
- gen_helper_cmp_lt_ph(v1_t, v2_t, cpu_env);
- break;
- case NM_CMP_LE_PH:
- check_dsp(ctx);
- gen_helper_cmp_le_ph(v1_t, v2_t, cpu_env);
- break;
- case NM_CMPU_EQ_QB:
- check_dsp(ctx);
- gen_helper_cmpu_eq_qb(v1_t, v2_t, cpu_env);
- break;
- case NM_CMPU_LT_QB:
- check_dsp(ctx);
- gen_helper_cmpu_lt_qb(v1_t, v2_t, cpu_env);
- break;
- case NM_CMPU_LE_QB:
- check_dsp(ctx);
- gen_helper_cmpu_le_qb(v1_t, v2_t, cpu_env);
- break;
- case NM_CMPGU_EQ_QB:
- check_dsp(ctx);
- gen_helper_cmpgu_eq_qb(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_CMPGU_LT_QB:
- check_dsp(ctx);
- gen_helper_cmpgu_lt_qb(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_CMPGU_LE_QB:
- check_dsp(ctx);
- gen_helper_cmpgu_le_qb(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_CMPGDU_EQ_QB:
- check_dsp_r2(ctx);
- gen_helper_cmpgu_eq_qb(v1_t, v1_t, v2_t);
- tcg_gen_deposit_tl(cpu_dspctrl, cpu_dspctrl, v1_t, 24, 4);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_CMPGDU_LT_QB:
- check_dsp_r2(ctx);
- gen_helper_cmpgu_lt_qb(v1_t, v1_t, v2_t);
- tcg_gen_deposit_tl(cpu_dspctrl, cpu_dspctrl, v1_t, 24, 4);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_CMPGDU_LE_QB:
- check_dsp_r2(ctx);
- gen_helper_cmpgu_le_qb(v1_t, v1_t, v2_t);
- tcg_gen_deposit_tl(cpu_dspctrl, cpu_dspctrl, v1_t, 24, 4);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_PACKRL_PH:
- check_dsp(ctx);
- gen_helper_packrl_ph(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_PICK_QB:
- check_dsp(ctx);
- gen_helper_pick_qb(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_PICK_PH:
- check_dsp(ctx);
- gen_helper_pick_ph(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_ADDQ_S_W:
- check_dsp(ctx);
- gen_helper_addq_s_w(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_SUBQ_S_W:
- check_dsp(ctx);
- gen_helper_subq_s_w(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_ADDSC:
- check_dsp(ctx);
- gen_helper_addsc(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_ADDWC:
- check_dsp(ctx);
- gen_helper_addwc(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_ADDQ_S_PH:
- check_dsp(ctx);
- switch (extract32(ctx->opcode, 10, 1)) {
- case 0:
- /* ADDQ_PH */
- gen_helper_addq_ph(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case 1:
- /* ADDQ_S_PH */
- gen_helper_addq_s_ph(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- }
- break;
- case NM_ADDQH_R_PH:
- check_dsp_r2(ctx);
- switch (extract32(ctx->opcode, 10, 1)) {
- case 0:
- /* ADDQH_PH */
- gen_helper_addqh_ph(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case 1:
- /* ADDQH_R_PH */
- gen_helper_addqh_r_ph(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- }
- break;
- case NM_ADDQH_R_W:
- check_dsp_r2(ctx);
- switch (extract32(ctx->opcode, 10, 1)) {
- case 0:
- /* ADDQH_W */
- gen_helper_addqh_w(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case 1:
- /* ADDQH_R_W */
- gen_helper_addqh_r_w(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- }
- break;
- case NM_ADDU_S_QB:
- check_dsp(ctx);
- switch (extract32(ctx->opcode, 10, 1)) {
- case 0:
- /* ADDU_QB */
- gen_helper_addu_qb(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case 1:
- /* ADDU_S_QB */
- gen_helper_addu_s_qb(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- }
- break;
- case NM_ADDU_S_PH:
- check_dsp_r2(ctx);
- switch (extract32(ctx->opcode, 10, 1)) {
- case 0:
- /* ADDU_PH */
- gen_helper_addu_ph(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case 1:
- /* ADDU_S_PH */
- gen_helper_addu_s_ph(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- }
- break;
- case NM_ADDUH_R_QB:
- check_dsp_r2(ctx);
- switch (extract32(ctx->opcode, 10, 1)) {
- case 0:
- /* ADDUH_QB */
- gen_helper_adduh_qb(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case 1:
- /* ADDUH_R_QB */
- gen_helper_adduh_r_qb(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- }
- break;
- case NM_SHRAV_R_PH:
- check_dsp(ctx);
- switch (extract32(ctx->opcode, 10, 1)) {
- case 0:
- /* SHRAV_PH */
- gen_helper_shra_ph(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case 1:
- /* SHRAV_R_PH */
- gen_helper_shra_r_ph(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- }
- break;
- case NM_SHRAV_R_QB:
- check_dsp_r2(ctx);
- switch (extract32(ctx->opcode, 10, 1)) {
- case 0:
- /* SHRAV_QB */
- gen_helper_shra_qb(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case 1:
- /* SHRAV_R_QB */
- gen_helper_shra_r_qb(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- }
- break;
- case NM_SUBQ_S_PH:
- check_dsp(ctx);
- switch (extract32(ctx->opcode, 10, 1)) {
- case 0:
- /* SUBQ_PH */
- gen_helper_subq_ph(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case 1:
- /* SUBQ_S_PH */
- gen_helper_subq_s_ph(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- }
- break;
- case NM_SUBQH_R_PH:
- check_dsp_r2(ctx);
- switch (extract32(ctx->opcode, 10, 1)) {
- case 0:
- /* SUBQH_PH */
- gen_helper_subqh_ph(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case 1:
- /* SUBQH_R_PH */
- gen_helper_subqh_r_ph(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- }
- break;
- case NM_SUBQH_R_W:
- check_dsp_r2(ctx);
- switch (extract32(ctx->opcode, 10, 1)) {
- case 0:
- /* SUBQH_W */
- gen_helper_subqh_w(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case 1:
- /* SUBQH_R_W */
- gen_helper_subqh_r_w(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- }
- break;
- case NM_SUBU_S_QB:
- check_dsp(ctx);
- switch (extract32(ctx->opcode, 10, 1)) {
- case 0:
- /* SUBU_QB */
- gen_helper_subu_qb(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case 1:
- /* SUBU_S_QB */
- gen_helper_subu_s_qb(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- }
- break;
- case NM_SUBU_S_PH:
- check_dsp_r2(ctx);
- switch (extract32(ctx->opcode, 10, 1)) {
- case 0:
- /* SUBU_PH */
- gen_helper_subu_ph(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case 1:
- /* SUBU_S_PH */
- gen_helper_subu_s_ph(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- }
- break;
- case NM_SUBUH_R_QB:
- check_dsp_r2(ctx);
- switch (extract32(ctx->opcode, 10, 1)) {
- case 0:
- /* SUBUH_QB */
- gen_helper_subuh_qb(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case 1:
- /* SUBUH_R_QB */
- gen_helper_subuh_r_qb(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- }
- break;
- case NM_SHLLV_S_PH:
- check_dsp(ctx);
- switch (extract32(ctx->opcode, 10, 1)) {
- case 0:
- /* SHLLV_PH */
- gen_helper_shll_ph(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case 1:
- /* SHLLV_S_PH */
- gen_helper_shll_s_ph(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- }
- break;
- case NM_PRECR_SRA_R_PH_W:
- check_dsp_r2(ctx);
- switch (extract32(ctx->opcode, 10, 1)) {
- case 0:
- /* PRECR_SRA_PH_W */
- {
- TCGv_i32 sa_t = tcg_const_i32(rd);
- gen_helper_precr_sra_ph_w(v1_t, sa_t, v1_t,
- cpu_gpr[rt]);
- gen_store_gpr(v1_t, rt);
- tcg_temp_free_i32(sa_t);
- }
- break;
- case 1:
- /* PRECR_SRA_R_PH_W */
- {
- TCGv_i32 sa_t = tcg_const_i32(rd);
- gen_helper_precr_sra_r_ph_w(v1_t, sa_t, v1_t,
- cpu_gpr[rt]);
- gen_store_gpr(v1_t, rt);
- tcg_temp_free_i32(sa_t);
- }
- break;
- }
- break;
- case NM_MULEU_S_PH_QBL:
- check_dsp(ctx);
- gen_helper_muleu_s_ph_qbl(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_MULEU_S_PH_QBR:
- check_dsp(ctx);
- gen_helper_muleu_s_ph_qbr(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_MULQ_RS_PH:
- check_dsp(ctx);
- gen_helper_mulq_rs_ph(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_MULQ_S_PH:
- check_dsp_r2(ctx);
- gen_helper_mulq_s_ph(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_MULQ_RS_W:
- check_dsp_r2(ctx);
- gen_helper_mulq_rs_w(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_MULQ_S_W:
- check_dsp_r2(ctx);
- gen_helper_mulq_s_w(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_APPEND:
- check_dsp_r2(ctx);
- gen_load_gpr(t0, rs);
- if (rd != 0) {
- tcg_gen_deposit_tl(cpu_gpr[rt], t0, cpu_gpr[rt], rd, 32 - rd);
- }
- tcg_gen_ext32s_tl(cpu_gpr[rt], cpu_gpr[rt]);
- break;
- case NM_MODSUB:
- check_dsp(ctx);
- gen_helper_modsub(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_SHRAV_R_W:
- check_dsp(ctx);
- gen_helper_shra_r_w(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_SHRLV_PH:
- check_dsp_r2(ctx);
- gen_helper_shrl_ph(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_SHRLV_QB:
- check_dsp(ctx);
- gen_helper_shrl_qb(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_SHLLV_QB:
- check_dsp(ctx);
- gen_helper_shll_qb(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_SHLLV_S_W:
- check_dsp(ctx);
- gen_helper_shll_s_w(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_SHILO:
- check_dsp(ctx);
- {
- TCGv tv0 = tcg_temp_new();
- TCGv tv1 = tcg_temp_new();
- int16_t imm = extract32(ctx->opcode, 16, 7);
-
- tcg_gen_movi_tl(tv0, rd >> 3);
- tcg_gen_movi_tl(tv1, imm);
- gen_helper_shilo(tv0, tv1, cpu_env);
- tcg_temp_free(tv1);
- tcg_temp_free(tv0);
- }
- break;
- case NM_MULEQ_S_W_PHL:
- check_dsp(ctx);
- gen_helper_muleq_s_w_phl(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_MULEQ_S_W_PHR:
- check_dsp(ctx);
- gen_helper_muleq_s_w_phr(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_MUL_S_PH:
- check_dsp_r2(ctx);
- switch (extract32(ctx->opcode, 10, 1)) {
- case 0:
- /* MUL_PH */
- gen_helper_mul_ph(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case 1:
- /* MUL_S_PH */
- gen_helper_mul_s_ph(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- }
- break;
- case NM_PRECR_QB_PH:
- check_dsp_r2(ctx);
- gen_helper_precr_qb_ph(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_PRECRQ_QB_PH:
- check_dsp(ctx);
- gen_helper_precrq_qb_ph(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_PRECRQ_PH_W:
- check_dsp(ctx);
- gen_helper_precrq_ph_w(v1_t, v1_t, v2_t);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_PRECRQ_RS_PH_W:
- check_dsp(ctx);
- gen_helper_precrq_rs_ph_w(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_PRECRQU_S_QB_PH:
- check_dsp(ctx);
- gen_helper_precrqu_s_qb_ph(v1_t, v1_t, v2_t, cpu_env);
- gen_store_gpr(v1_t, ret);
- break;
- case NM_SHRA_R_W:
- check_dsp(ctx);
- tcg_gen_movi_tl(t0, rd);
- gen_helper_shra_r_w(v1_t, t0, v1_t);
- gen_store_gpr(v1_t, rt);
- break;
- case NM_SHRA_R_PH:
- check_dsp(ctx);
- tcg_gen_movi_tl(t0, rd >> 1);
- switch (extract32(ctx->opcode, 10, 1)) {
- case 0:
- /* SHRA_PH */
- gen_helper_shra_ph(v1_t, t0, v1_t);
- gen_store_gpr(v1_t, rt);
- break;
- case 1:
- /* SHRA_R_PH */
- gen_helper_shra_r_ph(v1_t, t0, v1_t);
- gen_store_gpr(v1_t, rt);
- break;
- }
- break;
- case NM_SHLL_S_PH:
- check_dsp(ctx);
- tcg_gen_movi_tl(t0, rd >> 1);
- switch (extract32(ctx->opcode, 10, 2)) {
- case 0:
- /* SHLL_PH */
- gen_helper_shll_ph(v1_t, t0, v1_t, cpu_env);
- gen_store_gpr(v1_t, rt);
- break;
- case 2:
- /* SHLL_S_PH */
- gen_helper_shll_s_ph(v1_t, t0, v1_t, cpu_env);
- gen_store_gpr(v1_t, rt);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_SHLL_S_W:
- check_dsp(ctx);
- tcg_gen_movi_tl(t0, rd);
- gen_helper_shll_s_w(v1_t, t0, v1_t, cpu_env);
- gen_store_gpr(v1_t, rt);
- break;
- case NM_REPL_PH:
- check_dsp(ctx);
- {
- int16_t imm;
- imm = sextract32(ctx->opcode, 11, 11);
- imm = (int16_t)(imm << 6) >> 6;
- if (rt != 0) {
- tcg_gen_movi_tl(cpu_gpr[rt], dup_const(MO_16, imm));
- }
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
-
- tcg_temp_free(v2_t);
- tcg_temp_free(v1_t);
- tcg_temp_free(t0);
-}
-
-static int decode_nanomips_32_48_opc(CPUMIPSState *env, DisasContext *ctx)
-{
- uint16_t insn;
- uint32_t op;
- int rt, rs, rd;
- int offset;
- int imm;
-
- insn = translator_lduw(env, ctx->base.pc_next + 2);
- ctx->opcode = (ctx->opcode << 16) | insn;
-
- rt = extract32(ctx->opcode, 21, 5);
- rs = extract32(ctx->opcode, 16, 5);
- rd = extract32(ctx->opcode, 11, 5);
-
- op = extract32(ctx->opcode, 26, 6);
- switch (op) {
- case NM_P_ADDIU:
- if (rt == 0) {
- /* P.RI */
- switch (extract32(ctx->opcode, 19, 2)) {
- case NM_SIGRIE:
- default:
- gen_reserved_instruction(ctx);
- break;
- case NM_P_SYSCALL:
- if ((extract32(ctx->opcode, 18, 1)) == NM_SYSCALL) {
- generate_exception_end(ctx, EXCP_SYSCALL);
- } else {
- gen_reserved_instruction(ctx);
- }
- break;
- case NM_BREAK:
- generate_exception_end(ctx, EXCP_BREAK);
- break;
- case NM_SDBBP:
- if (is_uhi(extract32(ctx->opcode, 0, 19))) {
- gen_helper_do_semihosting(cpu_env);
- } else {
- if (ctx->hflags & MIPS_HFLAG_SBRI) {
- gen_reserved_instruction(ctx);
- } else {
- generate_exception_end(ctx, EXCP_DBp);
- }
- }
- break;
- }
- } else {
- /* NM_ADDIU */
- imm = extract32(ctx->opcode, 0, 16);
- if (rs != 0) {
- tcg_gen_addi_tl(cpu_gpr[rt], cpu_gpr[rs], imm);
- } else {
- tcg_gen_movi_tl(cpu_gpr[rt], imm);
- }
- tcg_gen_ext32s_tl(cpu_gpr[rt], cpu_gpr[rt]);
- }
- break;
- case NM_ADDIUPC:
- if (rt != 0) {
- offset = sextract32(ctx->opcode, 0, 1) << 21 |
- extract32(ctx->opcode, 1, 20) << 1;
- target_long addr = addr_add(ctx, ctx->base.pc_next + 4, offset);
- tcg_gen_movi_tl(cpu_gpr[rt], addr);
- }
- break;
- case NM_POOL32A:
- switch (ctx->opcode & 0x07) {
- case NM_POOL32A0:
- gen_pool32a0_nanomips_insn(env, ctx);
- break;
- case NM_POOL32A5:
- {
- int32_t op1 = extract32(ctx->opcode, 3, 7);
- gen_pool32a5_nanomips_insn(ctx, op1, rd, rs, rt);
- }
- break;
- case NM_POOL32A7:
- switch (extract32(ctx->opcode, 3, 3)) {
- case NM_P_LSX:
- gen_p_lsx(ctx, rd, rs, rt);
- break;
- case NM_LSA:
- /*
- * In nanoMIPS, the shift field directly encodes the shift
- * amount, meaning that the supported shift values are in
- * the range 0 to 3 (instead of 1 to 4 in MIPSR6).
- */
- gen_lsa(ctx, rd, rt, rs, extract32(ctx->opcode, 9, 2) - 1);
- break;
- case NM_EXTW:
- gen_ext(ctx, 32, rd, rs, rt, extract32(ctx->opcode, 6, 5));
- break;
- case NM_POOL32AXF:
- gen_pool32axf_nanomips_insn(env, ctx);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_P_GP_W:
- switch (ctx->opcode & 0x03) {
- case NM_ADDIUGP_W:
- if (rt != 0) {
- offset = extract32(ctx->opcode, 0, 21);
- gen_op_addr_addi(ctx, cpu_gpr[rt], cpu_gpr[28], offset);
- }
- break;
- case NM_LWGP:
- gen_ld(ctx, OPC_LW, rt, 28, extract32(ctx->opcode, 2, 19) << 2);
- break;
- case NM_SWGP:
- gen_st(ctx, OPC_SW, rt, 28, extract32(ctx->opcode, 2, 19) << 2);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_P48I:
- {
- insn = translator_lduw(env, ctx->base.pc_next + 4);
- target_long addr_off = extract32(ctx->opcode, 0, 16) | insn << 16;
- switch (extract32(ctx->opcode, 16, 5)) {
- case NM_LI48:
- check_nms(ctx);
- if (rt != 0) {
- tcg_gen_movi_tl(cpu_gpr[rt], addr_off);
- }
- break;
- case NM_ADDIU48:
- check_nms(ctx);
- if (rt != 0) {
- tcg_gen_addi_tl(cpu_gpr[rt], cpu_gpr[rt], addr_off);
- tcg_gen_ext32s_tl(cpu_gpr[rt], cpu_gpr[rt]);
- }
- break;
- case NM_ADDIUGP48:
- check_nms(ctx);
- if (rt != 0) {
- gen_op_addr_addi(ctx, cpu_gpr[rt], cpu_gpr[28], addr_off);
- }
- break;
- case NM_ADDIUPC48:
- check_nms(ctx);
- if (rt != 0) {
- target_long addr = addr_add(ctx, ctx->base.pc_next + 6,
- addr_off);
-
- tcg_gen_movi_tl(cpu_gpr[rt], addr);
- }
- break;
- case NM_LWPC48:
- check_nms(ctx);
- if (rt != 0) {
- TCGv t0;
- t0 = tcg_temp_new();
-
- target_long addr = addr_add(ctx, ctx->base.pc_next + 6,
- addr_off);
-
- tcg_gen_movi_tl(t0, addr);
- tcg_gen_qemu_ld_tl(cpu_gpr[rt], t0, ctx->mem_idx, MO_TESL);
- tcg_temp_free(t0);
- }
- break;
- case NM_SWPC48:
- check_nms(ctx);
- {
- TCGv t0, t1;
- t0 = tcg_temp_new();
- t1 = tcg_temp_new();
-
- target_long addr = addr_add(ctx, ctx->base.pc_next + 6,
- addr_off);
-
- tcg_gen_movi_tl(t0, addr);
- gen_load_gpr(t1, rt);
-
- tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUL);
-
- tcg_temp_free(t0);
- tcg_temp_free(t1);
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- return 6;
- }
- case NM_P_U12:
- switch (extract32(ctx->opcode, 12, 4)) {
- case NM_ORI:
- gen_logic_imm(ctx, OPC_ORI, rt, rs, extract32(ctx->opcode, 0, 12));
- break;
- case NM_XORI:
- gen_logic_imm(ctx, OPC_XORI, rt, rs, extract32(ctx->opcode, 0, 12));
- break;
- case NM_ANDI:
- gen_logic_imm(ctx, OPC_ANDI, rt, rs, extract32(ctx->opcode, 0, 12));
- break;
- case NM_P_SR:
- switch (extract32(ctx->opcode, 20, 1)) {
- case NM_PP_SR:
- switch (ctx->opcode & 3) {
- case NM_SAVE:
- gen_save(ctx, rt, extract32(ctx->opcode, 16, 4),
- extract32(ctx->opcode, 2, 1),
- extract32(ctx->opcode, 3, 9) << 3);
- break;
- case NM_RESTORE:
- case NM_RESTORE_JRC:
- gen_restore(ctx, rt, extract32(ctx->opcode, 16, 4),
- extract32(ctx->opcode, 2, 1),
- extract32(ctx->opcode, 3, 9) << 3);
- if ((ctx->opcode & 3) == NM_RESTORE_JRC) {
- gen_compute_branch_nm(ctx, OPC_JR, 2, 31, 0, 0);
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_P_SR_F:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_SLTI:
- gen_slt_imm(ctx, OPC_SLTI, rt, rs, extract32(ctx->opcode, 0, 12));
- break;
- case NM_SLTIU:
- gen_slt_imm(ctx, OPC_SLTIU, rt, rs, extract32(ctx->opcode, 0, 12));
- break;
- case NM_SEQI:
- {
- TCGv t0 = tcg_temp_new();
-
- imm = extract32(ctx->opcode, 0, 12);
- gen_load_gpr(t0, rs);
- tcg_gen_setcondi_tl(TCG_COND_EQ, t0, t0, imm);
- gen_store_gpr(t0, rt);
-
- tcg_temp_free(t0);
- }
- break;
- case NM_ADDIUNEG:
- imm = (int16_t) extract32(ctx->opcode, 0, 12);
- gen_arith_imm(ctx, OPC_ADDIU, rt, rs, -imm);
- break;
- case NM_P_SHIFT:
- {
- int shift = extract32(ctx->opcode, 0, 5);
- switch (extract32(ctx->opcode, 5, 4)) {
- case NM_P_SLL:
- if (rt == 0 && shift == 0) {
- /* NOP */
- } else if (rt == 0 && shift == 3) {
- /* EHB - treat as NOP */
- } else if (rt == 0 && shift == 5) {
- /* PAUSE - treat as NOP */
- } else if (rt == 0 && shift == 6) {
- /* SYNC */
- gen_sync(extract32(ctx->opcode, 16, 5));
- } else {
- /* SLL */
- gen_shift_imm(ctx, OPC_SLL, rt, rs,
- extract32(ctx->opcode, 0, 5));
- }
- break;
- case NM_SRL:
- gen_shift_imm(ctx, OPC_SRL, rt, rs,
- extract32(ctx->opcode, 0, 5));
- break;
- case NM_SRA:
- gen_shift_imm(ctx, OPC_SRA, rt, rs,
- extract32(ctx->opcode, 0, 5));
- break;
- case NM_ROTR:
- gen_shift_imm(ctx, OPC_ROTR, rt, rs,
- extract32(ctx->opcode, 0, 5));
- break;
- }
- }
- break;
- case NM_P_ROTX:
- check_nms(ctx);
- if (rt != 0) {
- TCGv t0 = tcg_temp_new();
- TCGv_i32 shift = tcg_const_i32(extract32(ctx->opcode, 0, 5));
- TCGv_i32 shiftx = tcg_const_i32(extract32(ctx->opcode, 7, 4)
- << 1);
- TCGv_i32 stripe = tcg_const_i32(extract32(ctx->opcode, 6, 1));
-
- gen_load_gpr(t0, rs);
- gen_helper_rotx(cpu_gpr[rt], t0, shift, shiftx, stripe);
- tcg_temp_free(t0);
-
- tcg_temp_free_i32(shift);
- tcg_temp_free_i32(shiftx);
- tcg_temp_free_i32(stripe);
- }
- break;
- case NM_P_INS:
- switch (((ctx->opcode >> 10) & 2) |
- (extract32(ctx->opcode, 5, 1))) {
- case NM_INS:
- check_nms(ctx);
- gen_bitops(ctx, OPC_INS, rt, rs, extract32(ctx->opcode, 0, 5),
- extract32(ctx->opcode, 6, 5));
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_P_EXT:
- switch (((ctx->opcode >> 10) & 2) |
- (extract32(ctx->opcode, 5, 1))) {
- case NM_EXT:
- check_nms(ctx);
- gen_bitops(ctx, OPC_EXT, rt, rs, extract32(ctx->opcode, 0, 5),
- extract32(ctx->opcode, 6, 5));
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_POOL32F:
- gen_pool32f_nanomips_insn(ctx);
- break;
- case NM_POOL32S:
- break;
- case NM_P_LUI:
- switch (extract32(ctx->opcode, 1, 1)) {
- case NM_LUI:
- if (rt != 0) {
- tcg_gen_movi_tl(cpu_gpr[rt],
- sextract32(ctx->opcode, 0, 1) << 31 |
- extract32(ctx->opcode, 2, 10) << 21 |
- extract32(ctx->opcode, 12, 9) << 12);
- }
- break;
- case NM_ALUIPC:
- if (rt != 0) {
- offset = sextract32(ctx->opcode, 0, 1) << 31 |
- extract32(ctx->opcode, 2, 10) << 21 |
- extract32(ctx->opcode, 12, 9) << 12;
- target_long addr;
- addr = ~0xFFF & addr_add(ctx, ctx->base.pc_next + 4, offset);
- tcg_gen_movi_tl(cpu_gpr[rt], addr);
- }
- break;
- }
- break;
- case NM_P_GP_BH:
- {
- uint32_t u = extract32(ctx->opcode, 0, 18);
-
- switch (extract32(ctx->opcode, 18, 3)) {
- case NM_LBGP:
- gen_ld(ctx, OPC_LB, rt, 28, u);
- break;
- case NM_SBGP:
- gen_st(ctx, OPC_SB, rt, 28, u);
- break;
- case NM_LBUGP:
- gen_ld(ctx, OPC_LBU, rt, 28, u);
- break;
- case NM_ADDIUGP_B:
- if (rt != 0) {
- gen_op_addr_addi(ctx, cpu_gpr[rt], cpu_gpr[28], u);
- }
- break;
- case NM_P_GP_LH:
- u &= ~1;
- switch (ctx->opcode & 1) {
- case NM_LHGP:
- gen_ld(ctx, OPC_LH, rt, 28, u);
- break;
- case NM_LHUGP:
- gen_ld(ctx, OPC_LHU, rt, 28, u);
- break;
- }
- break;
- case NM_P_GP_SH:
- u &= ~1;
- switch (ctx->opcode & 1) {
- case NM_SHGP:
- gen_st(ctx, OPC_SH, rt, 28, u);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_P_GP_CP1:
- u &= ~0x3;
- switch (ctx->opcode & 0x3) {
- case NM_LWC1GP:
- gen_cop1_ldst(ctx, OPC_LWC1, rt, 28, u);
- break;
- case NM_LDC1GP:
- gen_cop1_ldst(ctx, OPC_LDC1, rt, 28, u);
- break;
- case NM_SWC1GP:
- gen_cop1_ldst(ctx, OPC_SWC1, rt, 28, u);
- break;
- case NM_SDC1GP:
- gen_cop1_ldst(ctx, OPC_SDC1, rt, 28, u);
- break;
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- }
- break;
- case NM_P_LS_U12:
- {
- uint32_t u = extract32(ctx->opcode, 0, 12);
-
- switch (extract32(ctx->opcode, 12, 4)) {
- case NM_P_PREFU12:
- if (rt == 31) {
- /* SYNCI */
- /*
- * Break the TB to be able to sync copied instructions
- * immediately.
- */
- ctx->base.is_jmp = DISAS_STOP;
- } else {
- /* PREF */
- /* Treat as NOP. */
- }
- break;
- case NM_LB:
- gen_ld(ctx, OPC_LB, rt, rs, u);
- break;
- case NM_LH:
- gen_ld(ctx, OPC_LH, rt, rs, u);
- break;
- case NM_LW:
- gen_ld(ctx, OPC_LW, rt, rs, u);
- break;
- case NM_LBU:
- gen_ld(ctx, OPC_LBU, rt, rs, u);
- break;
- case NM_LHU:
- gen_ld(ctx, OPC_LHU, rt, rs, u);
- break;
- case NM_SB:
- gen_st(ctx, OPC_SB, rt, rs, u);
- break;
- case NM_SH:
- gen_st(ctx, OPC_SH, rt, rs, u);
- break;
- case NM_SW:
- gen_st(ctx, OPC_SW, rt, rs, u);
- break;
- case NM_LWC1:
- gen_cop1_ldst(ctx, OPC_LWC1, rt, rs, u);
- break;
- case NM_LDC1:
- gen_cop1_ldst(ctx, OPC_LDC1, rt, rs, u);
- break;
- case NM_SWC1:
- gen_cop1_ldst(ctx, OPC_SWC1, rt, rs, u);
- break;
- case NM_SDC1:
- gen_cop1_ldst(ctx, OPC_SDC1, rt, rs, u);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- }
- break;
- case NM_P_LS_S9:
- {
- int32_t s = (sextract32(ctx->opcode, 15, 1) << 8) |
- extract32(ctx->opcode, 0, 8);
-
- switch (extract32(ctx->opcode, 8, 3)) {
- case NM_P_LS_S0:
- switch (extract32(ctx->opcode, 11, 4)) {
- case NM_LBS9:
- gen_ld(ctx, OPC_LB, rt, rs, s);
- break;
- case NM_LHS9:
- gen_ld(ctx, OPC_LH, rt, rs, s);
- break;
- case NM_LWS9:
- gen_ld(ctx, OPC_LW, rt, rs, s);
- break;
- case NM_LBUS9:
- gen_ld(ctx, OPC_LBU, rt, rs, s);
- break;
- case NM_LHUS9:
- gen_ld(ctx, OPC_LHU, rt, rs, s);
- break;
- case NM_SBS9:
- gen_st(ctx, OPC_SB, rt, rs, s);
- break;
- case NM_SHS9:
- gen_st(ctx, OPC_SH, rt, rs, s);
- break;
- case NM_SWS9:
- gen_st(ctx, OPC_SW, rt, rs, s);
- break;
- case NM_LWC1S9:
- gen_cop1_ldst(ctx, OPC_LWC1, rt, rs, s);
- break;
- case NM_LDC1S9:
- gen_cop1_ldst(ctx, OPC_LDC1, rt, rs, s);
- break;
- case NM_SWC1S9:
- gen_cop1_ldst(ctx, OPC_SWC1, rt, rs, s);
- break;
- case NM_SDC1S9:
- gen_cop1_ldst(ctx, OPC_SDC1, rt, rs, s);
- break;
- case NM_P_PREFS9:
- if (rt == 31) {
- /* SYNCI */
- /*
- * Break the TB to be able to sync copied instructions
- * immediately.
- */
- ctx->base.is_jmp = DISAS_STOP;
- } else {
- /* PREF */
- /* Treat as NOP. */
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_P_LS_S1:
- switch (extract32(ctx->opcode, 11, 4)) {
- case NM_UALH:
- case NM_UASH:
- check_nms(ctx);
- {
- TCGv t0 = tcg_temp_new();
- TCGv t1 = tcg_temp_new();
-
- gen_base_offset_addr(ctx, t0, rs, s);
-
- switch (extract32(ctx->opcode, 11, 4)) {
- case NM_UALH:
- tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TESW |
- MO_UNALN);
- gen_store_gpr(t0, rt);
- break;
- case NM_UASH:
- gen_load_gpr(t1, rt);
- tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUW |
- MO_UNALN);
- break;
- }
- tcg_temp_free(t0);
- tcg_temp_free(t1);
- }
- break;
- case NM_P_LL:
- switch (ctx->opcode & 0x03) {
- case NM_LL:
- gen_ld(ctx, OPC_LL, rt, rs, s);
- break;
- case NM_LLWP:
- check_xnp(ctx);
- gen_llwp(ctx, rs, 0, rt, extract32(ctx->opcode, 3, 5));
- break;
- }
- break;
- case NM_P_SC:
- switch (ctx->opcode & 0x03) {
- case NM_SC:
- gen_st_cond(ctx, rt, rs, s, MO_TESL, false);
- break;
- case NM_SCWP:
- check_xnp(ctx);
- gen_scwp(ctx, rs, 0, rt, extract32(ctx->opcode, 3, 5),
- false);
- break;
- }
- break;
- case NM_CACHE:
- check_cp0_enabled(ctx);
- if (ctx->hflags & MIPS_HFLAG_ITC_CACHE) {
- gen_cache_operation(ctx, rt, rs, s);
- }
- break;
- }
- break;
- case NM_P_LS_E0:
- switch (extract32(ctx->opcode, 11, 4)) {
- case NM_LBE:
- check_eva(ctx);
- check_cp0_enabled(ctx);
- gen_ld(ctx, OPC_LBE, rt, rs, s);
- break;
- case NM_SBE:
- check_eva(ctx);
- check_cp0_enabled(ctx);
- gen_st(ctx, OPC_SBE, rt, rs, s);
- break;
- case NM_LBUE:
- check_eva(ctx);
- check_cp0_enabled(ctx);
- gen_ld(ctx, OPC_LBUE, rt, rs, s);
- break;
- case NM_P_PREFE:
- if (rt == 31) {
- /* case NM_SYNCIE */
- check_eva(ctx);
- check_cp0_enabled(ctx);
- /*
- * Break the TB to be able to sync copied instructions
- * immediately.
- */
- ctx->base.is_jmp = DISAS_STOP;
- } else {
- /* case NM_PREFE */
- check_eva(ctx);
- check_cp0_enabled(ctx);
- /* Treat as NOP. */
- }
- break;
- case NM_LHE:
- check_eva(ctx);
- check_cp0_enabled(ctx);
- gen_ld(ctx, OPC_LHE, rt, rs, s);
- break;
- case NM_SHE:
- check_eva(ctx);
- check_cp0_enabled(ctx);
- gen_st(ctx, OPC_SHE, rt, rs, s);
- break;
- case NM_LHUE:
- check_eva(ctx);
- check_cp0_enabled(ctx);
- gen_ld(ctx, OPC_LHUE, rt, rs, s);
- break;
- case NM_CACHEE:
- check_eva(ctx);
- check_cp0_enabled(ctx);
- check_nms_dl_il_sl_tl_l2c(ctx);
- gen_cache_operation(ctx, rt, rs, s);
- break;
- case NM_LWE:
- check_eva(ctx);
- check_cp0_enabled(ctx);
- gen_ld(ctx, OPC_LWE, rt, rs, s);
- break;
- case NM_SWE:
- check_eva(ctx);
- check_cp0_enabled(ctx);
- gen_st(ctx, OPC_SWE, rt, rs, s);
- break;
- case NM_P_LLE:
- switch (extract32(ctx->opcode, 2, 2)) {
- case NM_LLE:
- check_xnp(ctx);
- check_eva(ctx);
- check_cp0_enabled(ctx);
- gen_ld(ctx, OPC_LLE, rt, rs, s);
- break;
- case NM_LLWPE:
- check_xnp(ctx);
- check_eva(ctx);
- check_cp0_enabled(ctx);
- gen_llwp(ctx, rs, 0, rt, extract32(ctx->opcode, 3, 5));
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_P_SCE:
- switch (extract32(ctx->opcode, 2, 2)) {
- case NM_SCE:
- check_xnp(ctx);
- check_eva(ctx);
- check_cp0_enabled(ctx);
- gen_st_cond(ctx, rt, rs, s, MO_TESL, true);
- break;
- case NM_SCWPE:
- check_xnp(ctx);
- check_eva(ctx);
- check_cp0_enabled(ctx);
- gen_scwp(ctx, rs, 0, rt, extract32(ctx->opcode, 3, 5),
- true);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- }
- break;
- case NM_P_LS_WM:
- case NM_P_LS_UAWM:
- check_nms(ctx);
- {
- int count = extract32(ctx->opcode, 12, 3);
- int counter = 0;
-
- offset = sextract32(ctx->opcode, 15, 1) << 8 |
- extract32(ctx->opcode, 0, 8);
- TCGv va = tcg_temp_new();
- TCGv t1 = tcg_temp_new();
- MemOp memop = (extract32(ctx->opcode, 8, 3)) ==
- NM_P_LS_UAWM ? MO_UNALN : 0;
-
- count = (count == 0) ? 8 : count;
- while (counter != count) {
- int this_rt = ((rt + counter) & 0x1f) | (rt & 0x10);
- int this_offset = offset + (counter << 2);
-
- gen_base_offset_addr(ctx, va, rs, this_offset);
-
- switch (extract32(ctx->opcode, 11, 1)) {
- case NM_LWM:
- tcg_gen_qemu_ld_tl(t1, va, ctx->mem_idx,
- memop | MO_TESL);
- gen_store_gpr(t1, this_rt);
- if ((this_rt == rs) &&
- (counter != (count - 1))) {
- /* UNPREDICTABLE */
- }
- break;
- case NM_SWM:
- this_rt = (rt == 0) ? 0 : this_rt;
- gen_load_gpr(t1, this_rt);
- tcg_gen_qemu_st_tl(t1, va, ctx->mem_idx,
- memop | MO_TEUL);
- break;
- }
- counter++;
- }
- tcg_temp_free(va);
- tcg_temp_free(t1);
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- }
- break;
- case NM_MOVE_BALC:
- check_nms(ctx);
- {
- TCGv t0 = tcg_temp_new();
- int32_t s = sextract32(ctx->opcode, 0, 1) << 21 |
- extract32(ctx->opcode, 1, 20) << 1;
- rd = (extract32(ctx->opcode, 24, 1)) == 0 ? 4 : 5;
- rt = decode_gpr_gpr4_zero(extract32(ctx->opcode, 25, 1) << 3 |
- extract32(ctx->opcode, 21, 3));
- gen_load_gpr(t0, rt);
- tcg_gen_mov_tl(cpu_gpr[rd], t0);
- gen_compute_branch_nm(ctx, OPC_BGEZAL, 4, 0, 0, s);
- tcg_temp_free(t0);
- }
- break;
- case NM_P_BAL:
- {
- int32_t s = sextract32(ctx->opcode, 0, 1) << 25 |
- extract32(ctx->opcode, 1, 24) << 1;
-
- if ((extract32(ctx->opcode, 25, 1)) == 0) {
- /* BC */
- gen_compute_branch_nm(ctx, OPC_BEQ, 4, 0, 0, s);
- } else {
- /* BALC */
- gen_compute_branch_nm(ctx, OPC_BGEZAL, 4, 0, 0, s);
- }
- }
- break;
- case NM_P_J:
- switch (extract32(ctx->opcode, 12, 4)) {
- case NM_JALRC:
- case NM_JALRC_HB:
- gen_compute_branch_nm(ctx, OPC_JALR, 4, rs, rt, 0);
- break;
- case NM_P_BALRSC:
- gen_compute_nanomips_pbalrsc_branch(ctx, rs, rt);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_P_BR1:
- {
- int32_t s = sextract32(ctx->opcode, 0, 1) << 14 |
- extract32(ctx->opcode, 1, 13) << 1;
- switch (extract32(ctx->opcode, 14, 2)) {
- case NM_BEQC:
- check_nms(ctx);
- gen_compute_branch_nm(ctx, OPC_BEQ, 4, rs, rt, s);
- break;
- case NM_P_BR3A:
- s = sextract32(ctx->opcode, 0, 1) << 14 |
- extract32(ctx->opcode, 1, 13) << 1;
- check_cp1_enabled(ctx);
- switch (extract32(ctx->opcode, 16, 5)) {
- case NM_BC1EQZC:
- gen_compute_branch_cp1_nm(ctx, OPC_BC1EQZ, rt, s);
- break;
- case NM_BC1NEZC:
- gen_compute_branch_cp1_nm(ctx, OPC_BC1NEZ, rt, s);
- break;
- case NM_BPOSGE32C:
- check_dsp_r3(ctx);
- {
- int32_t imm = extract32(ctx->opcode, 1, 13) |
- extract32(ctx->opcode, 0, 1) << 13;
-
- gen_compute_branch_nm(ctx, OPC_BPOSGE32, 4, -1, -2,
- imm);
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_BGEC:
- if (rs == rt) {
- gen_compute_compact_branch_nm(ctx, OPC_BC, rs, rt, s);
- } else {
- gen_compute_compact_branch_nm(ctx, OPC_BGEC, rs, rt, s);
- }
- break;
- case NM_BGEUC:
- if (rs == rt || rt == 0) {
- gen_compute_compact_branch_nm(ctx, OPC_BC, 0, 0, s);
- } else if (rs == 0) {
- gen_compute_compact_branch_nm(ctx, OPC_BEQZC, rt, 0, s);
- } else {
- gen_compute_compact_branch_nm(ctx, OPC_BGEUC, rs, rt, s);
- }
- break;
- }
- }
- break;
- case NM_P_BR2:
- {
- int32_t s = sextract32(ctx->opcode, 0, 1) << 14 |
- extract32(ctx->opcode, 1, 13) << 1;
- switch (extract32(ctx->opcode, 14, 2)) {
- case NM_BNEC:
- check_nms(ctx);
- gen_compute_branch_nm(ctx, OPC_BNE, 4, rs, rt, s);
- break;
- case NM_BLTC:
- if (rs != 0 && rt != 0 && rs == rt) {
- /* NOP */
- ctx->hflags |= MIPS_HFLAG_FBNSLOT;
- } else {
- gen_compute_compact_branch_nm(ctx, OPC_BLTC, rs, rt, s);
- }
- break;
- case NM_BLTUC:
- if (rs == 0 || rs == rt) {
- /* NOP */
- ctx->hflags |= MIPS_HFLAG_FBNSLOT;
- } else {
- gen_compute_compact_branch_nm(ctx, OPC_BLTUC, rs, rt, s);
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- }
- break;
- case NM_P_BRI:
- {
- int32_t s = sextract32(ctx->opcode, 0, 1) << 11 |
- extract32(ctx->opcode, 1, 10) << 1;
- uint32_t u = extract32(ctx->opcode, 11, 7);
+}
- gen_compute_imm_branch(ctx, extract32(ctx->opcode, 18, 3),
- rt, u, s);
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- return 4;
+static inline bool is_uhi(int sdbbp_code)
+{
+#ifdef CONFIG_USER_ONLY
+ return false;
+#else
+ return semihosting_enabled() && sdbbp_code == 1;
+#endif
+}
+
+#ifdef CONFIG_USER_ONLY
+/* The above should dead-code away any calls to this..*/
+static inline void gen_helper_do_semihosting(void *env)
+{
+ g_assert_not_reached();
}
+#endif
-static int decode_nanomips_opc(CPUMIPSState *env, DisasContext *ctx)
+void gen_ldxs(DisasContext *ctx, int base, int index, int rd)
{
- uint32_t op;
- int rt = decode_gpr_gpr3(NANOMIPS_EXTRACT_RT3(ctx->opcode));
- int rs = decode_gpr_gpr3(NANOMIPS_EXTRACT_RS3(ctx->opcode));
- int rd = decode_gpr_gpr3(NANOMIPS_EXTRACT_RD3(ctx->opcode));
- int offset;
- int imm;
-
- /* make sure instructions are on a halfword boundary */
- if (ctx->base.pc_next & 0x1) {
- TCGv tmp = tcg_const_tl(ctx->base.pc_next);
- tcg_gen_st_tl(tmp, cpu_env, offsetof(CPUMIPSState, CP0_BadVAddr));
- tcg_temp_free(tmp);
- generate_exception_end(ctx, EXCP_AdEL);
- return 2;
+ TCGv t0 = tcg_temp_new();
+ TCGv t1 = tcg_temp_new();
+
+ gen_load_gpr(t0, base);
+
+ if (index != 0) {
+ gen_load_gpr(t1, index);
+ tcg_gen_shli_tl(t1, t1, 2);
+ gen_op_addr_add(ctx, t0, t1, t0);
}
- op = extract32(ctx->opcode, 10, 6);
- switch (op) {
- case NM_P16_MV:
- rt = NANOMIPS_EXTRACT_RD5(ctx->opcode);
- if (rt != 0) {
- /* MOVE */
- rs = NANOMIPS_EXTRACT_RS5(ctx->opcode);
- gen_arith(ctx, OPC_ADDU, rt, rs, 0);
- } else {
- /* P16.RI */
- switch (extract32(ctx->opcode, 3, 2)) {
- case NM_P16_SYSCALL:
- if (extract32(ctx->opcode, 2, 1) == 0) {
- generate_exception_end(ctx, EXCP_SYSCALL);
- } else {
- gen_reserved_instruction(ctx);
- }
- break;
- case NM_BREAK16:
- generate_exception_end(ctx, EXCP_BREAK);
- break;
- case NM_SDBBP16:
- if (is_uhi(extract32(ctx->opcode, 0, 3))) {
- gen_helper_do_semihosting(cpu_env);
- } else {
- if (ctx->hflags & MIPS_HFLAG_SBRI) {
- gen_reserved_instruction(ctx);
- } else {
- generate_exception_end(ctx, EXCP_DBp);
- }
- }
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- }
- break;
- case NM_P16_SHIFT:
- {
- int shift = extract32(ctx->opcode, 0, 3);
- uint32_t opc = 0;
- shift = (shift == 0) ? 8 : shift;
+ tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_TESL);
+ gen_store_gpr(t1, rd);
- switch (extract32(ctx->opcode, 3, 1)) {
- case NM_SLL16:
- opc = OPC_SLL;
- break;
- case NM_SRL16:
- opc = OPC_SRL;
- break;
- }
- gen_shift_imm(ctx, opc, rt, rs, shift);
- }
- break;
- case NM_P16C:
- switch (ctx->opcode & 1) {
- case NM_POOL16C_0:
- gen_pool16c_nanomips_insn(ctx);
- break;
- case NM_LWXS16:
- gen_ldxs(ctx, rt, rs, rd);
- break;
- }
- break;
- case NM_P16_A1:
- switch (extract32(ctx->opcode, 6, 1)) {
- case NM_ADDIUR1SP:
- imm = extract32(ctx->opcode, 0, 6) << 2;
- gen_arith_imm(ctx, OPC_ADDIU, rt, 29, imm);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_P16_A2:
- switch (extract32(ctx->opcode, 3, 1)) {
- case NM_ADDIUR2:
- imm = extract32(ctx->opcode, 0, 3) << 2;
- gen_arith_imm(ctx, OPC_ADDIU, rt, rs, imm);
- break;
- case NM_P_ADDIURS5:
- rt = extract32(ctx->opcode, 5, 5);
- if (rt != 0) {
- /* imm = sign_extend(s[3] . s[2:0] , from_nbits = 4) */
- imm = (sextract32(ctx->opcode, 4, 1) << 3) |
- (extract32(ctx->opcode, 0, 3));
- gen_arith_imm(ctx, OPC_ADDIU, rt, rt, imm);
- }
- break;
- }
- break;
- case NM_P16_ADDU:
- switch (ctx->opcode & 0x1) {
- case NM_ADDU16:
- gen_arith(ctx, OPC_ADDU, rd, rs, rt);
- break;
- case NM_SUBU16:
- gen_arith(ctx, OPC_SUBU, rd, rs, rt);
- break;
- }
- break;
- case NM_P16_4X4:
- rt = (extract32(ctx->opcode, 9, 1) << 3) |
- extract32(ctx->opcode, 5, 3);
- rs = (extract32(ctx->opcode, 4, 1) << 3) |
- extract32(ctx->opcode, 0, 3);
- rt = decode_gpr_gpr4(rt);
- rs = decode_gpr_gpr4(rs);
- switch ((extract32(ctx->opcode, 7, 2) & 0x2) |
- (extract32(ctx->opcode, 3, 1))) {
- case NM_ADDU4X4:
- check_nms(ctx);
- gen_arith(ctx, OPC_ADDU, rt, rs, rt);
- break;
- case NM_MUL4X4:
- check_nms(ctx);
- gen_r6_muldiv(ctx, R6_OPC_MUL, rt, rs, rt);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
- break;
- case NM_LI16:
- {
- int imm = extract32(ctx->opcode, 0, 7);
- imm = (imm == 0x7f ? -1 : imm);
- if (rt != 0) {
- tcg_gen_movi_tl(cpu_gpr[rt], imm);
- }
- }
- break;
- case NM_ANDI16:
- {
- uint32_t u = extract32(ctx->opcode, 0, 4);
- u = (u == 12) ? 0xff :
- (u == 13) ? 0xffff : u;
- gen_logic_imm(ctx, OPC_ANDI, rt, rs, u);
- }
- break;
- case NM_P16_LB:
- offset = extract32(ctx->opcode, 0, 2);
- switch (extract32(ctx->opcode, 2, 2)) {
- case NM_LB16:
- gen_ld(ctx, OPC_LB, rt, rs, offset);
- break;
- case NM_SB16:
- rt = decode_gpr_gpr3_src_store(
- NANOMIPS_EXTRACT_RT3(ctx->opcode));
- gen_st(ctx, OPC_SB, rt, rs, offset);
- break;
- case NM_LBU16:
- gen_ld(ctx, OPC_LBU, rt, rs, offset);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
+ tcg_temp_free(t0);
+ tcg_temp_free(t1);
+}
+
+static void gen_sync(int stype)
+{
+ TCGBar tcg_mo = TCG_BAR_SC;
+
+ switch (stype) {
+ case 0x4: /* SYNC_WMB */
+ tcg_mo |= TCG_MO_ST_ST;
break;
- case NM_P16_LH:
- offset = extract32(ctx->opcode, 1, 2) << 1;
- switch ((extract32(ctx->opcode, 3, 1) << 1) | (ctx->opcode & 1)) {
- case NM_LH16:
- gen_ld(ctx, OPC_LH, rt, rs, offset);
- break;
- case NM_SH16:
- rt = decode_gpr_gpr3_src_store(
- NANOMIPS_EXTRACT_RT3(ctx->opcode));
- gen_st(ctx, OPC_SH, rt, rs, offset);
- break;
- case NM_LHU16:
- gen_ld(ctx, OPC_LHU, rt, rs, offset);
- break;
- default:
- gen_reserved_instruction(ctx);
- break;
- }
+ case 0x10: /* SYNC_MB */
+ tcg_mo |= TCG_MO_ALL;
break;
- case NM_LW16:
- offset = extract32(ctx->opcode, 0, 4) << 2;
- gen_ld(ctx, OPC_LW, rt, rs, offset);
- break;
- case NM_LWSP16:
- rt = NANOMIPS_EXTRACT_RD5(ctx->opcode);
- offset = extract32(ctx->opcode, 0, 5) << 2;
- gen_ld(ctx, OPC_LW, rt, 29, offset);
- break;
- case NM_LW4X4:
- check_nms(ctx);
- rt = (extract32(ctx->opcode, 9, 1) << 3) |
- extract32(ctx->opcode, 5, 3);
- rs = (extract32(ctx->opcode, 4, 1) << 3) |
- extract32(ctx->opcode, 0, 3);
- offset = (extract32(ctx->opcode, 3, 1) << 3) |
- (extract32(ctx->opcode, 8, 1) << 2);
- rt = decode_gpr_gpr4(rt);
- rs = decode_gpr_gpr4(rs);
- gen_ld(ctx, OPC_LW, rt, rs, offset);
- break;
- case NM_SW4X4:
- check_nms(ctx);
- rt = (extract32(ctx->opcode, 9, 1) << 3) |
- extract32(ctx->opcode, 5, 3);
- rs = (extract32(ctx->opcode, 4, 1) << 3) |
- extract32(ctx->opcode, 0, 3);
- offset = (extract32(ctx->opcode, 3, 1) << 3) |
- (extract32(ctx->opcode, 8, 1) << 2);
- rt = decode_gpr_gpr4_zero(rt);
- rs = decode_gpr_gpr4(rs);
- gen_st(ctx, OPC_SW, rt, rs, offset);
- break;
- case NM_LWGP16:
- offset = extract32(ctx->opcode, 0, 7) << 2;
- gen_ld(ctx, OPC_LW, rt, 28, offset);
- break;
- case NM_SWSP16:
- rt = NANOMIPS_EXTRACT_RD5(ctx->opcode);
- offset = extract32(ctx->opcode, 0, 5) << 2;
- gen_st(ctx, OPC_SW, rt, 29, offset);
- break;
- case NM_SW16:
- rt = decode_gpr_gpr3_src_store(
- NANOMIPS_EXTRACT_RT3(ctx->opcode));
- rs = decode_gpr_gpr3(NANOMIPS_EXTRACT_RS3(ctx->opcode));
- offset = extract32(ctx->opcode, 0, 4) << 2;
- gen_st(ctx, OPC_SW, rt, rs, offset);
- break;
- case NM_SWGP16:
- rt = decode_gpr_gpr3_src_store(
- NANOMIPS_EXTRACT_RT3(ctx->opcode));
- offset = extract32(ctx->opcode, 0, 7) << 2;
- gen_st(ctx, OPC_SW, rt, 28, offset);
- break;
- case NM_BC16:
- gen_compute_branch_nm(ctx, OPC_BEQ, 2, 0, 0,
- (sextract32(ctx->opcode, 0, 1) << 10) |
- (extract32(ctx->opcode, 1, 9) << 1));
- break;
- case NM_BALC16:
- gen_compute_branch_nm(ctx, OPC_BGEZAL, 2, 0, 0,
- (sextract32(ctx->opcode, 0, 1) << 10) |
- (extract32(ctx->opcode, 1, 9) << 1));
- break;
- case NM_BEQZC16:
- gen_compute_branch_nm(ctx, OPC_BEQ, 2, rt, 0,
- (sextract32(ctx->opcode, 0, 1) << 7) |
- (extract32(ctx->opcode, 1, 6) << 1));
- break;
- case NM_BNEZC16:
- gen_compute_branch_nm(ctx, OPC_BNE, 2, rt, 0,
- (sextract32(ctx->opcode, 0, 1) << 7) |
- (extract32(ctx->opcode, 1, 6) << 1));
- break;
- case NM_P16_BR:
- switch (ctx->opcode & 0xf) {
- case 0:
- /* P16.JRC */
- switch (extract32(ctx->opcode, 4, 1)) {
- case NM_JRC:
- gen_compute_branch_nm(ctx, OPC_JR, 2,
- extract32(ctx->opcode, 5, 5), 0, 0);
- break;
- case NM_JALRC16:
- gen_compute_branch_nm(ctx, OPC_JALR, 2,
- extract32(ctx->opcode, 5, 5), 31, 0);
- break;
- }
- break;
- default:
- {
- /* P16.BRI */
- uint32_t opc = extract32(ctx->opcode, 4, 3) <
- extract32(ctx->opcode, 7, 3) ? OPC_BEQ : OPC_BNE;
- gen_compute_branch_nm(ctx, opc, 2, rs, rt,
- extract32(ctx->opcode, 0, 4) << 1);
- }
- break;
- }
+ case 0x11: /* SYNC_ACQUIRE */
+ tcg_mo |= TCG_MO_LD_LD | TCG_MO_LD_ST;
break;
- case NM_P16_SR:
- {
- int count = extract32(ctx->opcode, 0, 4);
- int u = extract32(ctx->opcode, 4, 4) << 4;
-
- rt = 30 + extract32(ctx->opcode, 9, 1);
- switch (extract32(ctx->opcode, 8, 1)) {
- case NM_SAVE16:
- gen_save(ctx, rt, count, 0, u);
- break;
- case NM_RESTORE_JRC16:
- gen_restore(ctx, rt, count, 0, u);
- gen_compute_branch_nm(ctx, OPC_JR, 2, 31, 0, 0);
- break;
- }
- }
+ case 0x12: /* SYNC_RELEASE */
+ tcg_mo |= TCG_MO_ST_ST | TCG_MO_LD_ST;
break;
- case NM_MOVEP:
- case NM_MOVEPREV:
- check_nms(ctx);
- {
- static const int gpr2reg1[] = {4, 5, 6, 7};
- static const int gpr2reg2[] = {5, 6, 7, 8};
- int re;
- int rd2 = extract32(ctx->opcode, 3, 1) << 1 |
- extract32(ctx->opcode, 8, 1);
- int r1 = gpr2reg1[rd2];
- int r2 = gpr2reg2[rd2];
- int r3 = extract32(ctx->opcode, 4, 1) << 3 |
- extract32(ctx->opcode, 0, 3);
- int r4 = extract32(ctx->opcode, 9, 1) << 3 |
- extract32(ctx->opcode, 5, 3);
- TCGv t0 = tcg_temp_new();
- TCGv t1 = tcg_temp_new();
- if (op == NM_MOVEP) {
- rd = r1;
- re = r2;
- rs = decode_gpr_gpr4_zero(r3);
- rt = decode_gpr_gpr4_zero(r4);
- } else {
- rd = decode_gpr_gpr4(r3);
- re = decode_gpr_gpr4(r4);
- rs = r1;
- rt = r2;
- }
- gen_load_gpr(t0, rs);
- gen_load_gpr(t1, rt);
- tcg_gen_mov_tl(cpu_gpr[rd], t0);
- tcg_gen_mov_tl(cpu_gpr[re], t1);
- tcg_temp_free(t0);
- tcg_temp_free(t1);
- }
+ case 0x13: /* SYNC_RMB */
+ tcg_mo |= TCG_MO_LD_LD;
break;
default:
- return decode_nanomips_32_48_opc(env, ctx);
+ tcg_mo |= TCG_MO_ALL;
+ break;
}
- return 2;
+ tcg_gen_mb(tcg_mo);
}
+/* ISA extensions (ASEs) */
-/* SmartMIPS extension to MIPS32 */
+/* MIPS16 extension to MIPS32 */
+#include "mips16e_translate.c.inc"
-#if defined(TARGET_MIPS64)
+/* microMIPS extension to MIPS32/MIPS64 */
+
+/*
+ * Values for microMIPS fmt field. Variable-width, depending on which
+ * formats the instruction supports.
+ */
+enum {
+ FMT_SD_S = 0,
+ FMT_SD_D = 1,
-/* MDMX extension to MIPS64 */
+ FMT_SDPS_S = 0,
+ FMT_SDPS_D = 1,
+ FMT_SDPS_PS = 2,
-#endif
+ FMT_SWL_S = 0,
+ FMT_SWL_W = 1,
+ FMT_SWL_L = 2,
+
+ FMT_DWL_D = 0,
+ FMT_DWL_W = 1,
+ FMT_DWL_L = 2
+};
+
+#include "micromips_translate.c.inc"
+
+#include "nanomips_translate.c.inc"
/* MIPSDSP functions. */
static void gen_mipsdsp_ld(DisasContext *ctx, uint32_t opc,
TCGv t0;
TCGv t1;
TCGv v1_t;
- TCGv v2_t;
int16_t imm;
if ((ret == 0) && (check_ret == 1)) {
t0 = tcg_temp_new();
t1 = tcg_temp_new();
v1_t = tcg_temp_new();
- v2_t = tcg_temp_new();
gen_load_gpr(v1_t, v1);
- gen_load_gpr(v2_t, v2);
switch (op1) {
case OPC_EXTR_W_DSP:
break;
case OPC_DEXTRV_S_H:
tcg_gen_movi_tl(t0, v2);
- tcg_gen_movi_tl(t1, v1);
- gen_helper_dextr_s_h(cpu_gpr[ret], t0, t1, cpu_env);
+ gen_helper_dextr_s_h(cpu_gpr[ret], t0, v1_t, cpu_env);
break;
case OPC_DEXTRV_L:
tcg_gen_movi_tl(t0, v2);
tcg_temp_free(t0);
tcg_temp_free(t1);
tcg_temp_free(v1_t);
- tcg_temp_free(v2_t);
}
/* End MIPSDSP functions. */
static void decode_opc_special_legacy(CPUMIPSState *env, DisasContext *ctx)
{
- int rs, rt, rd, sa;
+ int rs, rt, rd;
uint32_t op1;
rs = (ctx->opcode >> 21) & 0x1f;
rt = (ctx->opcode >> 16) & 0x1f;
rd = (ctx->opcode >> 11) & 0x1f;
- sa = (ctx->opcode >> 6) & 0x1f;
op1 = MASK_SPECIAL(ctx->opcode);
switch (op1) {
break;
case OPC_MULT:
case OPC_MULTU:
- if (sa) {
- check_insn(ctx, INSN_VR54XX);
- op1 = MASK_MUL_VR54XX(ctx->opcode);
- gen_mul_vr54xx(ctx, op1, rd, rs, rt);
- } else {
- gen_muldiv(ctx, op1, rd & 3, rs, rt);
- }
+ gen_muldiv(ctx, op1, rd & 3, rs, rt);
break;
case OPC_DIV:
case OPC_DIVU:
break;
#endif
case OPC_JR:
- gen_compute_branch(ctx, op1, 4, rs, rd, sa, 4);
+ gen_compute_branch(ctx, op1, 4, rs, 0, 0, 4);
break;
case OPC_SPIM:
#ifdef MIPS_STRICT_STANDARD
MIPS_INVAL("PMON / selsl");
gen_reserved_instruction(ctx);
#else
- gen_helper_0e0i(pmon, sa);
+ gen_helper_pmon(cpu_env, tcg_constant_i32(sa));
#endif
break;
case OPC_SYSCALL:
}
}
-static void gen_mmi_lq(CPUMIPSState *env, DisasContext *ctx)
-{
- gen_reserved_instruction(ctx); /* TODO: MMI_OPC_LQ */
-}
-
static void gen_mmi_sq(DisasContext *ctx, int base, int rt, int offset)
{
gen_reserved_instruction(ctx); /* TODO: MMI_OPC_SQ */
/* Treat as NOP. */
break;
case OPC_PREF:
- if (ctx->insn_flags & INSN_R5900) {
- /* Treat as NOP. */
- } else {
- check_insn(ctx, ISA_MIPS4 | ISA_MIPS_R1);
- /* Treat as NOP. */
- }
+ check_insn(ctx, ISA_MIPS4 | ISA_MIPS_R1 | INSN_R5900);
+ /* Treat as NOP. */
break;
/* Floating point (COP1). */
gen_compute_branch(ctx, op, 4, rs, rt, offset, 4);
}
break;
- case OPC_MDMX: /* MMI_OPC_LQ */
- if (ctx->insn_flags & INSN_R5900) {
-#if defined(TARGET_MIPS64)
- gen_mmi_lq(env, ctx);
-#endif
- } else {
- /* MDMX: Not implemented. */
- }
+ case OPC_MDMX:
+ /* MDMX: Not implemented. */
break;
case OPC_PCREL:
check_insn(ctx, ISA_MIPS_R6);
/* Transition to the auto-generated decoder. */
+ /* Vendor specific extensions */
+ if (cpu_supports_isa(env, INSN_R5900) && decode_ext_txx9(ctx, ctx->opcode)) {
+ return;
+ }
+ if (cpu_supports_isa(env, INSN_VR54XX) && decode_ext_vr54xx(ctx, ctx->opcode)) {
+ return;
+ }
+
/* ISA extensions */
if (ase_msa_available(env) && decode_ase_msa(ctx, ctx->opcode)) {
return;
if (cpu_supports_isa(env, ISA_MIPS_R6) && decode_isa_rel6(ctx, ctx->opcode)) {
return;
}
- if (cpu_supports_isa(env, INSN_R5900) && decode_ext_txx9(ctx, ctx->opcode)) {
- return;
- }
if (decode_opc_legacy(env, ctx)) {
return;
ctx->page_start = ctx->base.pc_first & TARGET_PAGE_MASK;
ctx->saved_pc = -1;
ctx->insn_flags = env->insn_flags;
+ ctx->CP0_Config0 = env->CP0_Config0;
ctx->CP0_Config1 = env->CP0_Config1;
ctx->CP0_Config2 = env->CP0_Config2;
ctx->CP0_Config3 = env->CP0_Config3;
ctx->default_tcg_memop_mask = (ctx->insn_flags & (ISA_MIPS_R6 |
INSN_LOONGSON3A)) ? MO_UNALN : MO_ALIGN;
+ /*
+ * Execute a branch and its delay slot as a single instruction.
+ * This is what GDB expects and is consistent with what the
+ * hardware does (e.g. if a delay slot instruction faults, the
+ * reported PC is the PC of the branch).
+ */
+ if (ctx->base.singlestep_enabled && (ctx->hflags & MIPS_HFLAG_BMASK)) {
+ ctx->base.max_insns = 2;
+ }
+
LOG_DISAS("\ntb %p idx %d hflags %04x\n", ctx->base.tb, ctx->mem_idx,
ctx->hflags);
}
ctx->btarget);
}
-static bool mips_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cs,
- const CPUBreakpoint *bp)
-{
- DisasContext *ctx = container_of(dcbase, DisasContext, base);
-
- save_cpu_state(ctx, 1);
- ctx->base.is_jmp = DISAS_NORETURN;
- gen_helper_raise_exception_debug(cpu_env);
- /*
- * The address covered by the breakpoint must be included in
- * [tb->pc, tb->pc + tb->size) in order to for it to be
- * properly cleared -- thus we increment the PC here so that
- * the logic setting tb->size below does the right thing.
- */
- ctx->base.pc_next += 4;
- return true;
-}
-
static void mips_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
{
CPUMIPSState *env = cs->env_ptr;
is_slot = ctx->hflags & MIPS_HFLAG_BMASK;
if (ctx->insn_flags & ISA_NANOMIPS32) {
- ctx->opcode = translator_lduw(env, ctx->base.pc_next);
- insn_bytes = decode_nanomips_opc(env, ctx);
+ ctx->opcode = translator_lduw(env, &ctx->base, ctx->base.pc_next);
+ insn_bytes = decode_isa_nanomips(env, ctx);
} else if (!(ctx->hflags & MIPS_HFLAG_M16)) {
- ctx->opcode = translator_ldl(env, ctx->base.pc_next);
+ ctx->opcode = translator_ldl(env, &ctx->base, ctx->base.pc_next);
insn_bytes = 4;
decode_opc(env, ctx);
} else if (ctx->insn_flags & ASE_MICROMIPS) {
- ctx->opcode = translator_lduw(env, ctx->base.pc_next);
- insn_bytes = decode_micromips_opc(env, ctx);
+ ctx->opcode = translator_lduw(env, &ctx->base, ctx->base.pc_next);
+ insn_bytes = decode_isa_micromips(env, ctx);
} else if (ctx->insn_flags & ASE_MIPS16) {
- ctx->opcode = translator_lduw(env, ctx->base.pc_next);
- insn_bytes = decode_mips16_opc(env, ctx);
+ ctx->opcode = translator_lduw(env, &ctx->base, ctx->base.pc_next);
+ insn_bytes = decode_ase_mips16e(env, ctx);
} else {
gen_reserved_instruction(ctx);
g_assert(ctx->base.is_jmp == DISAS_NORETURN);
if (ctx->base.is_jmp != DISAS_NEXT) {
return;
}
+
/*
- * Execute a branch and its delay slot as a single instruction.
- * This is what GDB expects and is consistent with what the
- * hardware does (e.g. if a delay slot instruction faults, the
- * reported PC is the PC of the branch).
+ * End the TB on (most) page crossings.
+ * See mips_tr_init_disas_context about single-stepping a branch
+ * together with its delay slot.
*/
- if (ctx->base.singlestep_enabled &&
- (ctx->hflags & MIPS_HFLAG_BMASK) == 0) {
- ctx->base.is_jmp = DISAS_TOO_MANY;
- }
- if (ctx->base.pc_next - ctx->page_start >= TARGET_PAGE_SIZE) {
+ if (ctx->base.pc_next - ctx->page_start >= TARGET_PAGE_SIZE
+ && !ctx->base.singlestep_enabled) {
ctx->base.is_jmp = DISAS_TOO_MANY;
}
}
{
DisasContext *ctx = container_of(dcbase, DisasContext, base);
- if (ctx->base.singlestep_enabled && ctx->base.is_jmp != DISAS_NORETURN) {
- save_cpu_state(ctx, ctx->base.is_jmp != DISAS_EXIT);
- gen_helper_raise_exception_debug(cpu_env);
- } else {
- switch (ctx->base.is_jmp) {
- case DISAS_STOP:
- gen_save_pc(ctx->base.pc_next);
- tcg_gen_lookup_and_goto_ptr();
- break;
- case DISAS_NEXT:
- case DISAS_TOO_MANY:
- save_cpu_state(ctx, 0);
- gen_goto_tb(ctx, 0, ctx->base.pc_next);
- break;
- case DISAS_EXIT:
- tcg_gen_exit_tb(NULL, 0);
- break;
- case DISAS_NORETURN:
- break;
- default:
- g_assert_not_reached();
- }
+ switch (ctx->base.is_jmp) {
+ case DISAS_STOP:
+ gen_save_pc(ctx->base.pc_next);
+ tcg_gen_lookup_and_goto_ptr();
+ break;
+ case DISAS_NEXT:
+ case DISAS_TOO_MANY:
+ save_cpu_state(ctx, 0);
+ gen_goto_tb(ctx, 0, ctx->base.pc_next);
+ break;
+ case DISAS_EXIT:
+ tcg_gen_exit_tb(NULL, 0);
+ break;
+ case DISAS_NORETURN:
+ break;
+ default:
+ g_assert_not_reached();
}
}
.init_disas_context = mips_tr_init_disas_context,
.tb_start = mips_tr_tb_start,
.insn_start = mips_tr_insn_start,
- .breakpoint_check = mips_tr_breakpoint_check,
.translate_insn = mips_tr_translate_insn,
.tb_stop = mips_tr_tb_stop,
.disas_log = mips_tr_disas_log,
projects / mirror_qemu.git / blobdiff