TranslationBlock *tb;
uint32_t pc;
uint32_t next_pc;
+ int cring;
+ int ring;
+ uint32_t lbeg;
+ uint32_t lend;
+ TCGv_i32 litbase;
int is_jmp;
int singlestep_enabled;
+
+ bool sar_5bit;
+ bool sar_m32_5bit;
+ bool sar_m32_allocated;
+ TCGv_i32 sar_m32;
} DisasContext;
static TCGv_ptr cpu_env;
#include "gen-icount.h"
static const char * const sregnames[256] = {
+ [LBEG] = "LBEG",
+ [LEND] = "LEND",
+ [LCOUNT] = "LCOUNT",
+ [SAR] = "SAR",
+ [LITBASE] = "LITBASE",
+ [SCOMPARE1] = "SCOMPARE1",
+ [WINDOW_BASE] = "WINDOW_BASE",
+ [WINDOW_START] = "WINDOW_START",
+ [EPC1] = "EPC1",
+ [DEPC] = "DEPC",
+ [EXCSAVE1] = "EXCSAVE1",
+ [PS] = "PS",
+ [EXCCAUSE] = "EXCCAUSE",
+ [EXCVADDR] = "EXCVADDR",
};
static const char * const uregnames[256] = {
return xtensa_option_enabled(dc->config, opt);
}
+static void init_litbase(DisasContext *dc)
+{
+ if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) {
+ dc->litbase = tcg_temp_local_new_i32();
+ tcg_gen_andi_i32(dc->litbase, cpu_SR[LITBASE], 0xfffff000);
+ }
+}
+
+static void reset_litbase(DisasContext *dc)
+{
+ if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) {
+ tcg_temp_free(dc->litbase);
+ }
+}
+
+static void init_sar_tracker(DisasContext *dc)
+{
+ dc->sar_5bit = false;
+ dc->sar_m32_5bit = false;
+ dc->sar_m32_allocated = false;
+}
+
+static void reset_sar_tracker(DisasContext *dc)
+{
+ if (dc->sar_m32_allocated) {
+ tcg_temp_free(dc->sar_m32);
+ }
+}
+
+static void gen_right_shift_sar(DisasContext *dc, TCGv_i32 sa)
+{
+ tcg_gen_andi_i32(cpu_SR[SAR], sa, 0x1f);
+ if (dc->sar_m32_5bit) {
+ tcg_gen_discard_i32(dc->sar_m32);
+ }
+ dc->sar_5bit = true;
+ dc->sar_m32_5bit = false;
+}
+
+static void gen_left_shift_sar(DisasContext *dc, TCGv_i32 sa)
+{
+ TCGv_i32 tmp = tcg_const_i32(32);
+ if (!dc->sar_m32_allocated) {
+ dc->sar_m32 = tcg_temp_local_new_i32();
+ dc->sar_m32_allocated = true;
+ }
+ tcg_gen_andi_i32(dc->sar_m32, sa, 0x1f);
+ tcg_gen_sub_i32(cpu_SR[SAR], tmp, dc->sar_m32);
+ dc->sar_5bit = false;
+ dc->sar_m32_5bit = true;
+ tcg_temp_free(tmp);
+}
+
static void gen_exception(int excp)
{
TCGv_i32 tmp = tcg_const_i32(excp);
tcg_temp_free(tmp);
}
+static void gen_exception_cause(DisasContext *dc, uint32_t cause)
+{
+ TCGv_i32 tpc = tcg_const_i32(dc->pc);
+ TCGv_i32 tcause = tcg_const_i32(cause);
+ gen_helper_exception_cause(tpc, tcause);
+ tcg_temp_free(tpc);
+ tcg_temp_free(tcause);
+}
+
+static void gen_check_privilege(DisasContext *dc)
+{
+ if (dc->cring) {
+ gen_exception_cause(dc, PRIVILEGED_CAUSE);
+ }
+}
+
static void gen_jump_slot(DisasContext *dc, TCGv dest, int slot)
{
tcg_gen_mov_i32(cpu_pc, dest);
tcg_temp_free(tmp);
}
+static void gen_callw_slot(DisasContext *dc, int callinc, TCGv_i32 dest,
+ int slot)
+{
+ TCGv_i32 tcallinc = tcg_const_i32(callinc);
+
+ tcg_gen_deposit_i32(cpu_SR[PS], cpu_SR[PS],
+ tcallinc, PS_CALLINC_SHIFT, PS_CALLINC_LEN);
+ tcg_temp_free(tcallinc);
+ tcg_gen_movi_i32(cpu_R[callinc << 2],
+ (callinc << 30) | (dc->next_pc & 0x3fffffff));
+ gen_jump_slot(dc, dest, slot);
+}
+
+static void gen_callw(DisasContext *dc, int callinc, TCGv_i32 dest)
+{
+ gen_callw_slot(dc, callinc, dest, -1);
+}
+
+static void gen_callwi(DisasContext *dc, int callinc, uint32_t dest, int slot)
+{
+ TCGv_i32 tmp = tcg_const_i32(dest);
+ if (((dc->pc ^ dest) & TARGET_PAGE_MASK) != 0) {
+ slot = -1;
+ }
+ gen_callw_slot(dc, callinc, tmp, slot);
+ tcg_temp_free(tmp);
+}
+
+static bool gen_check_loop_end(DisasContext *dc, int slot)
+{
+ if (option_enabled(dc, XTENSA_OPTION_LOOP) &&
+ !(dc->tb->flags & XTENSA_TBFLAG_EXCM) &&
+ dc->next_pc == dc->lend) {
+ int label = gen_new_label();
+
+ tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_SR[LCOUNT], 0, label);
+ tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_SR[LCOUNT], 1);
+ gen_jumpi(dc, dc->lbeg, slot);
+ gen_set_label(label);
+ gen_jumpi(dc, dc->next_pc, -1);
+ return true;
+ }
+ return false;
+}
+
+static void gen_jumpi_check_loop_end(DisasContext *dc, int slot)
+{
+ if (!gen_check_loop_end(dc, slot)) {
+ gen_jumpi(dc, dc->next_pc, slot);
+ }
+}
+
static void gen_brcond(DisasContext *dc, TCGCond cond,
TCGv_i32 t0, TCGv_i32 t1, uint32_t offset)
{
int label = gen_new_label();
tcg_gen_brcond_i32(cond, t0, t1, label);
- gen_jumpi(dc, dc->next_pc, 0);
+ gen_jumpi_check_loop_end(dc, 0);
gen_set_label(label);
gen_jumpi(dc, dc->pc + offset, 1);
}
}
}
+static void gen_wsr_lbeg(DisasContext *dc, uint32_t sr, TCGv_i32 s)
+{
+ gen_helper_wsr_lbeg(s);
+}
+
+static void gen_wsr_lend(DisasContext *dc, uint32_t sr, TCGv_i32 s)
+{
+ gen_helper_wsr_lend(s);
+}
+
+static void gen_wsr_sar(DisasContext *dc, uint32_t sr, TCGv_i32 s)
+{
+ tcg_gen_andi_i32(cpu_SR[sr], s, 0x3f);
+ if (dc->sar_m32_5bit) {
+ tcg_gen_discard_i32(dc->sar_m32);
+ }
+ dc->sar_5bit = false;
+ dc->sar_m32_5bit = false;
+}
+
+static void gen_wsr_litbase(DisasContext *dc, uint32_t sr, TCGv_i32 s)
+{
+ tcg_gen_andi_i32(cpu_SR[sr], s, 0xfffff001);
+ /* This can change tb->flags, so exit tb */
+ gen_jumpi_check_loop_end(dc, -1);
+}
+
+static void gen_wsr_windowbase(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ gen_helper_wsr_windowbase(v);
+}
+
+static void gen_wsr_ps(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ uint32_t mask = PS_WOE | PS_CALLINC | PS_OWB |
+ PS_UM | PS_EXCM | PS_INTLEVEL;
+
+ if (option_enabled(dc, XTENSA_OPTION_MMU)) {
+ mask |= PS_RING;
+ }
+ tcg_gen_andi_i32(cpu_SR[sr], v, mask);
+ /* This can change mmu index, so exit tb */
+ gen_jumpi_check_loop_end(dc, -1);
+}
+
static void gen_wsr(DisasContext *dc, uint32_t sr, TCGv_i32 s)
{
static void (* const wsr_handler[256])(DisasContext *dc,
uint32_t sr, TCGv_i32 v) = {
+ [LBEG] = gen_wsr_lbeg,
+ [LEND] = gen_wsr_lend,
+ [SAR] = gen_wsr_sar,
+ [LITBASE] = gen_wsr_litbase,
+ [WINDOW_BASE] = gen_wsr_windowbase,
+ [PS] = gen_wsr_ps,
};
if (sregnames[sr]) {
} \
} while (0)
+#define TBD() qemu_log("TBD(pc = %08x): %s:%d\n", dc->pc, __FILE__, __LINE__)
+#define RESERVED() do { \
+ qemu_log("RESERVED(pc = %08x, %02x%02x%02x): %s:%d\n", \
+ dc->pc, b0, b1, b2, __FILE__, __LINE__); \
+ goto invalid_opcode; \
+ } while (0)
+
+
#ifdef TARGET_WORDS_BIGENDIAN
#define OP0 (((b0) & 0xf0) >> 4)
#define OP1 (((b2) & 0xf0) >> 4)
case 0: /*SNM0*/
switch (CALLX_M) {
case 0: /*ILL*/
+ gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
break;
case 1: /*reserved*/
+ RESERVED();
break;
case 2: /*JR*/
case 1: /*RETWw*/
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
+ {
+ TCGv_i32 tmp = tcg_const_i32(dc->pc);
+ gen_helper_retw(tmp, tmp);
+ gen_jump(dc, tmp);
+ tcg_temp_free(tmp);
+ }
break;
case 3: /*reserved*/
+ RESERVED();
break;
}
break;
case 2: /*CALLX8w*/
case 3: /*CALLX12w*/
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
+ {
+ TCGv_i32 tmp = tcg_temp_new_i32();
+
+ tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]);
+ gen_callw(dc, CALLX_N, tmp);
+ tcg_temp_free(tmp);
+ }
break;
}
break;
case 1: /*MOVSPw*/
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
+ {
+ TCGv_i32 pc = tcg_const_i32(dc->pc);
+ gen_helper_movsp(pc);
+ tcg_gen_mov_i32(cpu_R[RRR_T], cpu_R[RRR_S]);
+ tcg_temp_free(pc);
+ }
break;
case 2: /*SYNC*/
+ switch (RRR_T) {
+ case 0: /*ISYNC*/
+ break;
+
+ case 1: /*RSYNC*/
+ break;
+
+ case 2: /*ESYNC*/
+ break;
+
+ case 3: /*DSYNC*/
+ break;
+
+ case 8: /*EXCW*/
+ HAS_OPTION(XTENSA_OPTION_EXCEPTION);
+ break;
+
+ case 12: /*MEMW*/
+ break;
+
+ case 13: /*EXTW*/
+ break;
+
+ case 15: /*NOP*/
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+ }
+ break;
+
+ case 3: /*RFEIx*/
+ switch (RRR_T) {
+ case 0: /*RFETx*/
+ HAS_OPTION(XTENSA_OPTION_EXCEPTION);
+ switch (RRR_S) {
+ case 0: /*RFEx*/
+ gen_check_privilege(dc);
+ tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_EXCM);
+ gen_jump(dc, cpu_SR[EPC1]);
+ break;
+
+ case 1: /*RFUEx*/
+ RESERVED();
+ break;
+
+ case 2: /*RFDEx*/
+ gen_check_privilege(dc);
+ gen_jump(dc, cpu_SR[
+ dc->config->ndepc ? DEPC : EPC1]);
+ break;
+
+ case 4: /*RFWOw*/
+ case 5: /*RFWUw*/
+ HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
+ gen_check_privilege(dc);
+ {
+ TCGv_i32 tmp = tcg_const_i32(1);
+
+ tcg_gen_andi_i32(
+ cpu_SR[PS], cpu_SR[PS], ~PS_EXCM);
+ tcg_gen_shl_i32(tmp, tmp, cpu_SR[WINDOW_BASE]);
+
+ if (RRR_S == 4) {
+ tcg_gen_andc_i32(cpu_SR[WINDOW_START],
+ cpu_SR[WINDOW_START], tmp);
+ } else {
+ tcg_gen_or_i32(cpu_SR[WINDOW_START],
+ cpu_SR[WINDOW_START], tmp);
+ }
+
+ gen_helper_restore_owb();
+ gen_jump(dc, cpu_SR[EPC1]);
+
+ tcg_temp_free(tmp);
+ }
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+ }
+ break;
+
+ case 1: /*RFIx*/
+ HAS_OPTION(XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT);
+ TBD();
+ break;
+
+ case 2: /*RFME*/
+ TBD();
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+
+ }
+ break;
+
+ case 4: /*BREAKx*/
+ HAS_OPTION(XTENSA_OPTION_EXCEPTION);
+ TBD();
+ break;
+
+ case 5: /*SYSCALLx*/
+ HAS_OPTION(XTENSA_OPTION_EXCEPTION);
+ switch (RRR_S) {
+ case 0: /*SYSCALLx*/
+ gen_exception_cause(dc, SYSCALL_CAUSE);
+ break;
+
+ case 1: /*SIMCALL*/
+ TBD();
+ break;
+
+ default:
+ RESERVED();
+ break;
+ }
+ break;
+
+ case 6: /*RSILx*/
+ HAS_OPTION(XTENSA_OPTION_INTERRUPT);
+ gen_check_privilege(dc);
+ tcg_gen_mov_i32(cpu_R[RRR_T], cpu_SR[PS]);
+ tcg_gen_ori_i32(cpu_SR[PS], cpu_SR[PS], RRR_S);
+ tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS],
+ RRR_S | ~PS_INTLEVEL);
break;
- case 3:
+ case 7: /*WAITIx*/
+ HAS_OPTION(XTENSA_OPTION_INTERRUPT);
+ TBD();
+ break;
+
+ case 8: /*ANY4p*/
+ HAS_OPTION(XTENSA_OPTION_BOOLEAN);
+ TBD();
+ break;
+
+ case 9: /*ALL4p*/
+ HAS_OPTION(XTENSA_OPTION_BOOLEAN);
+ TBD();
+ break;
+
+ case 10: /*ANY8p*/
+ HAS_OPTION(XTENSA_OPTION_BOOLEAN);
+ TBD();
+ break;
+
+ case 11: /*ALL8p*/
+ HAS_OPTION(XTENSA_OPTION_BOOLEAN);
+ TBD();
+ break;
+
+ default: /*reserved*/
+ RESERVED();
break;
}
break;
case 4: /*ST1*/
+ switch (RRR_R) {
+ case 0: /*SSR*/
+ gen_right_shift_sar(dc, cpu_R[RRR_S]);
+ break;
+
+ case 1: /*SSL*/
+ gen_left_shift_sar(dc, cpu_R[RRR_S]);
+ break;
+
+ case 2: /*SSA8L*/
+ {
+ TCGv_i32 tmp = tcg_temp_new_i32();
+ tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3);
+ gen_right_shift_sar(dc, tmp);
+ tcg_temp_free(tmp);
+ }
+ break;
+
+ case 3: /*SSA8B*/
+ {
+ TCGv_i32 tmp = tcg_temp_new_i32();
+ tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3);
+ gen_left_shift_sar(dc, tmp);
+ tcg_temp_free(tmp);
+ }
+ break;
+
+ case 4: /*SSAI*/
+ {
+ TCGv_i32 tmp = tcg_const_i32(
+ RRR_S | ((RRR_T & 1) << 4));
+ gen_right_shift_sar(dc, tmp);
+ tcg_temp_free(tmp);
+ }
+ break;
+
+ case 6: /*RER*/
+ TBD();
+ break;
+
+ case 7: /*WER*/
+ TBD();
+ break;
+
+ case 8: /*ROTWw*/
+ HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
+ gen_check_privilege(dc);
+ {
+ TCGv_i32 tmp = tcg_const_i32(
+ RRR_T | ((RRR_T & 8) ? 0xfffffff0 : 0));
+ gen_helper_rotw(tmp);
+ tcg_temp_free(tmp);
+ }
+ break;
+
+ case 14: /*NSAu*/
+ HAS_OPTION(XTENSA_OPTION_MISC_OP);
+ gen_helper_nsa(cpu_R[RRR_T], cpu_R[RRR_S]);
+ break;
+
+ case 15: /*NSAUu*/
+ HAS_OPTION(XTENSA_OPTION_MISC_OP);
+ gen_helper_nsau(cpu_R[RRR_T], cpu_R[RRR_S]);
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+ }
break;
case 5: /*TLB*/
+ TBD();
break;
case 6: /*RT0*/
break;
default: /*reserved*/
+ RESERVED();
break;
}
break;
case 7: /*reserved*/
+ RESERVED();
break;
case 8: /*ADD*/
break;
case 1: /*RST1*/
+ switch (OP2) {
+ case 0: /*SLLI*/
+ case 1:
+ tcg_gen_shli_i32(cpu_R[RRR_R], cpu_R[RRR_S],
+ 32 - (RRR_T | ((OP2 & 1) << 4)));
+ break;
+
+ case 2: /*SRAI*/
+ case 3:
+ tcg_gen_sari_i32(cpu_R[RRR_R], cpu_R[RRR_T],
+ RRR_S | ((OP2 & 1) << 4));
+ break;
+
+ case 4: /*SRLI*/
+ tcg_gen_shri_i32(cpu_R[RRR_R], cpu_R[RRR_T], RRR_S);
+ break;
+
+ case 6: /*XSR*/
+ {
+ TCGv_i32 tmp = tcg_temp_new_i32();
+ if (RSR_SR >= 64) {
+ gen_check_privilege(dc);
+ }
+ tcg_gen_mov_i32(tmp, cpu_R[RRR_T]);
+ gen_rsr(dc, cpu_R[RRR_T], RSR_SR);
+ gen_wsr(dc, RSR_SR, tmp);
+ tcg_temp_free(tmp);
+ if (!sregnames[RSR_SR]) {
+ TBD();
+ }
+ }
+ break;
+
+ /*
+ * Note: 64 bit ops are used here solely because SAR values
+ * have range 0..63
+ */
+#define gen_shift_reg(cmd, reg) do { \
+ TCGv_i64 tmp = tcg_temp_new_i64(); \
+ tcg_gen_extu_i32_i64(tmp, reg); \
+ tcg_gen_##cmd##_i64(v, v, tmp); \
+ tcg_gen_trunc_i64_i32(cpu_R[RRR_R], v); \
+ tcg_temp_free_i64(v); \
+ tcg_temp_free_i64(tmp); \
+ } while (0)
+
+#define gen_shift(cmd) gen_shift_reg(cmd, cpu_SR[SAR])
+
+ case 8: /*SRC*/
+ {
+ TCGv_i64 v = tcg_temp_new_i64();
+ tcg_gen_concat_i32_i64(v, cpu_R[RRR_T], cpu_R[RRR_S]);
+ gen_shift(shr);
+ }
+ break;
+
+ case 9: /*SRL*/
+ if (dc->sar_5bit) {
+ tcg_gen_shr_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]);
+ } else {
+ TCGv_i64 v = tcg_temp_new_i64();
+ tcg_gen_extu_i32_i64(v, cpu_R[RRR_T]);
+ gen_shift(shr);
+ }
+ break;
+
+ case 10: /*SLL*/
+ if (dc->sar_m32_5bit) {
+ tcg_gen_shl_i32(cpu_R[RRR_R], cpu_R[RRR_S], dc->sar_m32);
+ } else {
+ TCGv_i64 v = tcg_temp_new_i64();
+ TCGv_i32 s = tcg_const_i32(32);
+ tcg_gen_sub_i32(s, s, cpu_SR[SAR]);
+ tcg_gen_andi_i32(s, s, 0x3f);
+ tcg_gen_extu_i32_i64(v, cpu_R[RRR_S]);
+ gen_shift_reg(shl, s);
+ tcg_temp_free(s);
+ }
+ break;
+
+ case 11: /*SRA*/
+ if (dc->sar_5bit) {
+ tcg_gen_sar_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]);
+ } else {
+ TCGv_i64 v = tcg_temp_new_i64();
+ tcg_gen_ext_i32_i64(v, cpu_R[RRR_T]);
+ gen_shift(sar);
+ }
+ break;
+#undef gen_shift
+#undef gen_shift_reg
+
+ case 12: /*MUL16U*/
+ HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL);
+ {
+ TCGv_i32 v1 = tcg_temp_new_i32();
+ TCGv_i32 v2 = tcg_temp_new_i32();
+ tcg_gen_ext16u_i32(v1, cpu_R[RRR_S]);
+ tcg_gen_ext16u_i32(v2, cpu_R[RRR_T]);
+ tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2);
+ tcg_temp_free(v2);
+ tcg_temp_free(v1);
+ }
+ break;
+
+ case 13: /*MUL16S*/
+ HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL);
+ {
+ TCGv_i32 v1 = tcg_temp_new_i32();
+ TCGv_i32 v2 = tcg_temp_new_i32();
+ tcg_gen_ext16s_i32(v1, cpu_R[RRR_S]);
+ tcg_gen_ext16s_i32(v2, cpu_R[RRR_T]);
+ tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2);
+ tcg_temp_free(v2);
+ tcg_temp_free(v1);
+ }
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+ }
break;
case 2: /*RST2*/
+ if (OP2 >= 12) {
+ HAS_OPTION(XTENSA_OPTION_32_BIT_IDIV);
+ int label = gen_new_label();
+ tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0, label);
+ gen_exception_cause(dc, INTEGER_DIVIDE_BY_ZERO_CAUSE);
+ gen_set_label(label);
+ }
+
+ switch (OP2) {
+ case 8: /*MULLi*/
+ HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL);
+ tcg_gen_mul_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
+ break;
+
+ case 10: /*MULUHi*/
+ case 11: /*MULSHi*/
+ HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL);
+ {
+ TCGv_i64 r = tcg_temp_new_i64();
+ TCGv_i64 s = tcg_temp_new_i64();
+ TCGv_i64 t = tcg_temp_new_i64();
+
+ if (OP2 == 10) {
+ tcg_gen_extu_i32_i64(s, cpu_R[RRR_S]);
+ tcg_gen_extu_i32_i64(t, cpu_R[RRR_T]);
+ } else {
+ tcg_gen_ext_i32_i64(s, cpu_R[RRR_S]);
+ tcg_gen_ext_i32_i64(t, cpu_R[RRR_T]);
+ }
+ tcg_gen_mul_i64(r, s, t);
+ tcg_gen_shri_i64(r, r, 32);
+ tcg_gen_trunc_i64_i32(cpu_R[RRR_R], r);
+
+ tcg_temp_free_i64(r);
+ tcg_temp_free_i64(s);
+ tcg_temp_free_i64(t);
+ }
+ break;
+
+ case 12: /*QUOUi*/
+ tcg_gen_divu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
+ break;
+
+ case 13: /*QUOSi*/
+ case 15: /*REMSi*/
+ {
+ int label1 = gen_new_label();
+ int label2 = gen_new_label();
+
+ tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_S], 0x80000000,
+ label1);
+ tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0xffffffff,
+ label1);
+ tcg_gen_movi_i32(cpu_R[RRR_R],
+ OP2 == 13 ? 0x80000000 : 0);
+ tcg_gen_br(label2);
+ gen_set_label(label1);
+ if (OP2 == 13) {
+ tcg_gen_div_i32(cpu_R[RRR_R],
+ cpu_R[RRR_S], cpu_R[RRR_T]);
+ } else {
+ tcg_gen_rem_i32(cpu_R[RRR_R],
+ cpu_R[RRR_S], cpu_R[RRR_T]);
+ }
+ gen_set_label(label2);
+ }
+ break;
+
+ case 14: /*REMUi*/
+ tcg_gen_remu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+ }
break;
case 3: /*RST3*/
switch (OP2) {
case 0: /*RSR*/
+ if (RSR_SR >= 64) {
+ gen_check_privilege(dc);
+ }
gen_rsr(dc, cpu_R[RRR_T], RSR_SR);
+ if (!sregnames[RSR_SR]) {
+ TBD();
+ }
break;
case 1: /*WSR*/
+ if (RSR_SR >= 64) {
+ gen_check_privilege(dc);
+ }
gen_wsr(dc, RSR_SR, cpu_R[RRR_T]);
+ if (!sregnames[RSR_SR]) {
+ TBD();
+ }
break;
case 2: /*SEXTu*/
case 12: /*MOVFp*/
HAS_OPTION(XTENSA_OPTION_BOOLEAN);
+ TBD();
break;
case 13: /*MOVTp*/
HAS_OPTION(XTENSA_OPTION_BOOLEAN);
+ TBD();
break;
case 14: /*RUR*/
tcg_gen_mov_i32(cpu_R[RRR_R], cpu_UR[st]);
} else {
qemu_log("RUR %d not implemented, ", st);
+ TBD();
}
}
break;
tcg_gen_mov_i32(cpu_UR[RSR_SR], cpu_R[RRR_T]);
} else {
qemu_log("WUR %d not implemented, ", RSR_SR);
+ TBD();
}
}
break;
case 4: /*EXTUI*/
case 5:
+ {
+ int shiftimm = RRR_S | (OP1 << 4);
+ int maskimm = (1 << (OP2 + 1)) - 1;
+
+ TCGv_i32 tmp = tcg_temp_new_i32();
+ tcg_gen_shri_i32(tmp, cpu_R[RRR_T], shiftimm);
+ tcg_gen_andi_i32(cpu_R[RRR_R], tmp, maskimm);
+ tcg_temp_free(tmp);
+ }
break;
case 6: /*CUST0*/
+ RESERVED();
break;
case 7: /*CUST1*/
+ RESERVED();
break;
case 8: /*LSCXp*/
HAS_OPTION(XTENSA_OPTION_COPROCESSOR);
+ TBD();
break;
case 9: /*LSC4*/
+ switch (OP2) {
+ case 0: /*L32E*/
+ HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
+ gen_check_privilege(dc);
+ {
+ TCGv_i32 addr = tcg_temp_new_i32();
+ tcg_gen_addi_i32(addr, cpu_R[RRR_S],
+ (0xffffffc0 | (RRR_R << 2)));
+ tcg_gen_qemu_ld32u(cpu_R[RRR_T], addr, dc->ring);
+ tcg_temp_free(addr);
+ }
+ break;
+
+ case 4: /*S32E*/
+ HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
+ gen_check_privilege(dc);
+ {
+ TCGv_i32 addr = tcg_temp_new_i32();
+ tcg_gen_addi_i32(addr, cpu_R[RRR_S],
+ (0xffffffc0 | (RRR_R << 2)));
+ tcg_gen_qemu_st32(cpu_R[RRR_T], addr, dc->ring);
+ tcg_temp_free(addr);
+ }
+ break;
+
+ default:
+ RESERVED();
+ break;
+ }
break;
case 10: /*FP0*/
HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);
+ TBD();
break;
case 11: /*FP1*/
HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR);
+ TBD();
break;
default: /*reserved*/
+ RESERVED();
break;
}
break;
case 1: /*L32R*/
{
TCGv_i32 tmp = tcg_const_i32(
- (0xfffc0000 | (RI16_IMM16 << 2)) +
- ((dc->pc + 3) & ~3));
+ ((dc->tb->flags & XTENSA_TBFLAG_LITBASE) ?
+ 0 : ((dc->pc + 3) & ~3)) +
+ (0xfffc0000 | (RI16_IMM16 << 2)));
- /* no ext L32R */
-
- tcg_gen_qemu_ld32u(cpu_R[RRR_T], tmp, 0);
+ if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) {
+ tcg_gen_add_i32(tmp, tmp, dc->litbase);
+ }
+ tcg_gen_qemu_ld32u(cpu_R[RRR_T], tmp, dc->cring);
tcg_temp_free(tmp);
}
break;
case 2: /*LSAI*/
+#define gen_load_store(type, shift) do { \
+ TCGv_i32 addr = tcg_temp_new_i32(); \
+ tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << shift); \
+ tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \
+ tcg_temp_free(addr); \
+ } while (0)
+
+ switch (RRI8_R) {
+ case 0: /*L8UI*/
+ gen_load_store(ld8u, 0);
+ break;
+
+ case 1: /*L16UI*/
+ gen_load_store(ld16u, 1);
+ break;
+
+ case 2: /*L32I*/
+ gen_load_store(ld32u, 2);
+ break;
+
+ case 4: /*S8I*/
+ gen_load_store(st8, 0);
+ break;
+
+ case 5: /*S16I*/
+ gen_load_store(st16, 1);
+ break;
+
+ case 6: /*S32I*/
+ gen_load_store(st32, 2);
+ break;
+
+ case 7: /*CACHEc*/
+ if (RRI8_T < 8) {
+ HAS_OPTION(XTENSA_OPTION_DCACHE);
+ }
+
+ switch (RRI8_T) {
+ case 0: /*DPFRc*/
+ break;
+
+ case 1: /*DPFWc*/
+ break;
+
+ case 2: /*DPFROc*/
+ break;
+
+ case 3: /*DPFWOc*/
+ break;
+
+ case 4: /*DHWBc*/
+ break;
+
+ case 5: /*DHWBIc*/
+ break;
+
+ case 6: /*DHIc*/
+ break;
+
+ case 7: /*DIIc*/
+ break;
+
+ case 8: /*DCEc*/
+ switch (OP1) {
+ case 0: /*DPFLl*/
+ HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);
+ break;
+
+ case 2: /*DHUl*/
+ HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);
+ break;
+
+ case 3: /*DIUl*/
+ HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK);
+ break;
+
+ case 4: /*DIWBc*/
+ HAS_OPTION(XTENSA_OPTION_DCACHE);
+ break;
+
+ case 5: /*DIWBIc*/
+ HAS_OPTION(XTENSA_OPTION_DCACHE);
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+
+ }
+ break;
+
+ case 12: /*IPFc*/
+ HAS_OPTION(XTENSA_OPTION_ICACHE);
+ break;
+
+ case 13: /*ICEc*/
+ switch (OP1) {
+ case 0: /*IPFLl*/
+ HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);
+ break;
+
+ case 2: /*IHUl*/
+ HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);
+ break;
+
+ case 3: /*IIUl*/
+ HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK);
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+ }
+ break;
+
+ case 14: /*IHIc*/
+ HAS_OPTION(XTENSA_OPTION_ICACHE);
+ break;
+
+ case 15: /*IIIc*/
+ HAS_OPTION(XTENSA_OPTION_ICACHE);
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+ }
+ break;
+
+ case 9: /*L16SI*/
+ gen_load_store(ld16s, 1);
+ break;
+
+ case 10: /*MOVI*/
+ tcg_gen_movi_i32(cpu_R[RRI8_T],
+ RRI8_IMM8 | (RRI8_S << 8) |
+ ((RRI8_S & 0x8) ? 0xfffff000 : 0));
+ break;
+
+ case 11: /*L32AIy*/
+ HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO);
+ gen_load_store(ld32u, 2); /*TODO acquire?*/
+ break;
+
+ case 12: /*ADDI*/
+ tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE);
+ break;
+
+ case 13: /*ADDMI*/
+ tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE << 8);
+ break;
+
+ case 14: /*S32C1Iy*/
+ HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO);
+ {
+ int label = gen_new_label();
+ TCGv_i32 tmp = tcg_temp_local_new_i32();
+ TCGv_i32 addr = tcg_temp_local_new_i32();
+
+ tcg_gen_mov_i32(tmp, cpu_R[RRI8_T]);
+ tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2);
+ tcg_gen_qemu_ld32u(cpu_R[RRI8_T], addr, dc->cring);
+ tcg_gen_brcond_i32(TCG_COND_NE, cpu_R[RRI8_T],
+ cpu_SR[SCOMPARE1], label);
+
+ tcg_gen_qemu_st32(tmp, addr, dc->cring);
+
+ gen_set_label(label);
+ tcg_temp_free(addr);
+ tcg_temp_free(tmp);
+ }
+ break;
+
+ case 15: /*S32RIy*/
+ HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO);
+ gen_load_store(st32, 2); /*TODO release?*/
+ break;
+
+ default: /*reserved*/
+ RESERVED();
+ break;
+ }
break;
+#undef gen_load_store
case 3: /*LSCIp*/
HAS_OPTION(XTENSA_OPTION_COPROCESSOR);
+ TBD();
break;
case 4: /*MAC16d*/
HAS_OPTION(XTENSA_OPTION_MAC16);
+ TBD();
break;
case 5: /*CALLN*/
case 2: /*CALL8w*/
case 3: /*CALL12w*/
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
+ gen_callwi(dc, CALL_N,
+ (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0);
break;
}
break;
switch (BRI8_M) {
case 0: /*ENTRYw*/
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
+ {
+ TCGv_i32 pc = tcg_const_i32(dc->pc);
+ TCGv_i32 s = tcg_const_i32(BRI12_S);
+ TCGv_i32 imm = tcg_const_i32(BRI12_IMM12);
+ gen_helper_entry(pc, s, imm);
+ tcg_temp_free(imm);
+ tcg_temp_free(s);
+ tcg_temp_free(pc);
+ }
break;
case 1: /*B1*/
switch (BRI8_R) {
case 0: /*BFp*/
HAS_OPTION(XTENSA_OPTION_BOOLEAN);
+ TBD();
break;
case 1: /*BTp*/
HAS_OPTION(XTENSA_OPTION_BOOLEAN);
+ TBD();
break;
case 8: /*LOOP*/
- break;
-
case 9: /*LOOPNEZ*/
- break;
-
case 10: /*LOOPGTZ*/
+ HAS_OPTION(XTENSA_OPTION_LOOP);
+ {
+ uint32_t lend = dc->pc + RRI8_IMM8 + 4;
+ TCGv_i32 tmp = tcg_const_i32(lend);
+
+ tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_R[RRI8_S], 1);
+ tcg_gen_movi_i32(cpu_SR[LBEG], dc->next_pc);
+ gen_wsr_lend(dc, LEND, tmp);
+ tcg_temp_free(tmp);
+
+ if (BRI8_R > 8) {
+ int label = gen_new_label();
+ tcg_gen_brcondi_i32(
+ BRI8_R == 9 ? TCG_COND_NE : TCG_COND_GT,
+ cpu_R[RRI8_S], 0, label);
+ gen_jumpi(dc, lend, 1);
+ gen_set_label(label);
+ }
+
+ gen_jumpi(dc, dc->next_pc, 0);
+ }
break;
default: /*reserved*/
+ RESERVED();
break;
}
#define gen_narrow_load_store(type) do { \
TCGv_i32 addr = tcg_temp_new_i32(); \
tcg_gen_addi_i32(addr, cpu_R[RRRN_S], RRRN_R << 2); \
- tcg_gen_qemu_##type(cpu_R[RRRN_T], addr, 0); \
+ tcg_gen_qemu_##type(cpu_R[RRRN_T], addr, dc->cring); \
tcg_temp_free(addr); \
} while (0)
break;
case 1: /*RETW.Nn*/
+ HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
+ {
+ TCGv_i32 tmp = tcg_const_i32(dc->pc);
+ gen_helper_retw(tmp, tmp);
+ gen_jump(dc, tmp);
+ tcg_temp_free(tmp);
+ }
break;
case 2: /*BREAK.Nn*/
+ TBD();
break;
case 3: /*NOP.Nn*/
break;
case 6: /*ILL.Nn*/
+ gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
break;
default: /*reserved*/
+ RESERVED();
break;
}
break;
default: /*reserved*/
+ RESERVED();
break;
}
break;
default: /*reserved*/
+ RESERVED();
break;
}
+ gen_check_loop_end(dc, 0);
dc->pc = dc->next_pc;
+
return;
invalid_opcode:
dc.singlestep_enabled = env->singlestep_enabled;
dc.tb = tb;
dc.pc = pc_start;
+ dc.ring = tb->flags & XTENSA_TBFLAG_RING_MASK;
+ dc.cring = (tb->flags & XTENSA_TBFLAG_EXCM) ? 0 : dc.ring;
+ dc.lbeg = env->sregs[LBEG];
+ dc.lend = env->sregs[LEND];
dc.is_jmp = DISAS_NEXT;
+ init_litbase(&dc);
+ init_sar_tracker(&dc);
+
gen_icount_start();
+ if (env->singlestep_enabled && env->exception_taken) {
+ env->exception_taken = 0;
+ tcg_gen_movi_i32(cpu_pc, dc.pc);
+ gen_exception(EXCP_DEBUG);
+ }
+
do {
check_breakpoint(env, &dc);
dc.pc < next_page_start &&
gen_opc_ptr < gen_opc_end);
+ reset_litbase(&dc);
+ reset_sar_tracker(&dc);
+
if (dc.is_jmp == DISAS_NEXT) {
gen_jumpi(&dc, dc.pc, 0);
}
cpu_fprintf(f, "A%02d=%08x%c", i, env->regs[i],
(i % 4) == 3 ? '\n' : ' ');
}
+
+ cpu_fprintf(f, "\n");
+
+ for (i = 0; i < env->config->nareg; ++i) {
+ cpu_fprintf(f, "AR%02d=%08x%c", i, env->phys_regs[i],
+ (i % 4) == 3 ? '\n' : ' ');
+ }
}
void restore_state_to_opc(CPUState *env, TranslationBlock *tb, int pc_pos)
projects / qemu.git / blobdiff