* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
-#include <stdarg.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <inttypes.h>
-#include <assert.h>
-
#include "cpu.h"
-#include "exec-all.h"
-#include "disas.h"
+#include "disas/disas.h"
#include "helper.h"
#include "tcg-op.h"
-#include "lm32-decode.h"
-#include "qemu-common.h"
-#include "hw/lm32_pic.h"
+#include "hw/lm32/lm32_pic.h"
#define GEN_HELPER 1
#include "helper.h"
static TCGv cpu_bp[4];
static TCGv cpu_wp[4];
-#include "gen-icount.h"
+#include "exec/gen-icount.h"
enum {
OP_FMT_RI,
/* This is the state at translation time. */
typedef struct DisasContext {
- CPUState *env;
+ CPULM32State *env;
target_ulong pc;
/* Decoder. */
{
TCGv_i32 tmp = tcg_const_i32(index);
- gen_helper_raise_exception(tmp);
+ gen_helper_raise_exception(cpu_env, tmp);
tcg_temp_free_i32(tmp);
}
likely(!dc->singlestep_enabled)) {
tcg_gen_goto_tb(n);
tcg_gen_movi_tl(cpu_pc, dest);
- tcg_gen_exit_tb((long)tb + n);
+ tcg_gen_exit_tb((tcg_target_long)tb + n);
} else {
tcg_gen_movi_tl(cpu_pc, dest);
if (dc->singlestep_enabled) {
} else {
if (dc->r0 == 0 && dc->r1 == 0 && dc->r2 == 0) {
tcg_gen_movi_tl(cpu_pc, dc->pc + 4);
- gen_helper_hlt();
+ gen_helper_hlt(cpu_env);
} else {
tcg_gen_and_tl(cpu_R[dc->r2], cpu_R[dc->r0], cpu_R[dc->r1]);
}
int rX = (dc->format == OP_FMT_RR) ? dc->r2 : dc->r1;
int rY = (dc->format == OP_FMT_RR) ? dc->r0 : dc->r0;
int rZ = (dc->format == OP_FMT_RR) ? dc->r1 : -1;
+ int i;
if (dc->format == OP_FMT_RI) {
- tcg_gen_setcondi_tl(cond, cpu_R[rX], cpu_R[rY],
- sign_extend(dc->imm16, 16));
+ switch (cond) {
+ case TCG_COND_GEU:
+ case TCG_COND_GTU:
+ i = zero_extend(dc->imm16, 16);
+ break;
+ default:
+ i = sign_extend(dc->imm16, 16);
+ break;
+ }
+
+ tcg_gen_setcondi_tl(cond, cpu_R[rX], cpu_R[rY], i);
} else {
tcg_gen_setcond_tl(cond, cpu_R[rX], cpu_R[rY], cpu_R[rZ]);
}
{
if (dc->format == OP_FMT_RI) {
LOG_DIS("cmpgeui r%d, r%d, %d\n", dc->r0, dc->r1,
- sign_extend(dc->imm16, 16));
+ zero_extend(dc->imm16, 16));
} else {
LOG_DIS("cmpgeu r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
}
{
if (dc->format == OP_FMT_RI) {
LOG_DIS("cmpgui r%d, r%d, %d\n", dc->r0, dc->r1,
- sign_extend(dc->imm16, 16));
+ zero_extend(dc->imm16, 16));
} else {
LOG_DIS("cmpgu r%d, r%d, r%d\n", dc->r2, dc->r0, dc->r1);
}
tcg_gen_ori_tl(cpu_R[dc->r1], cpu_R[dc->r0], (dc->imm16 << 16));
}
-static void dec_raise(DisasContext *dc)
+static void dec_scall(DisasContext *dc)
{
- TCGv t0;
- int l1;
-
if (dc->imm5 == 7) {
LOG_DIS("scall\n");
} else if (dc->imm5 == 2) {
cpu_abort(dc->env, "invalid opcode\n");
}
- t0 = tcg_temp_new();
- l1 = gen_new_label();
-
- /* save IE.IE */
- tcg_gen_andi_tl(t0, cpu_ie, IE_IE);
-
- /* IE.IE = 0 */
- tcg_gen_andi_tl(cpu_ie, cpu_ie, ~IE_IE);
-
if (dc->imm5 == 7) {
- /* IE.EIE = IE.IE */
- tcg_gen_ori_tl(cpu_ie, cpu_ie, IE_EIE);
- tcg_gen_brcondi_tl(TCG_COND_EQ, t0, IE_IE, l1);
- tcg_gen_andi_tl(cpu_ie, cpu_ie, ~IE_EIE);
- gen_set_label(l1);
-
- /* gpr[ea] = PC */
- tcg_gen_movi_tl(cpu_R[R_EA], dc->pc);
- tcg_temp_free(t0);
-
tcg_gen_movi_tl(cpu_pc, dc->pc);
t_gen_raise_exception(dc, EXCP_SYSTEMCALL);
} else {
- /* IE.BIE = IE.IE */
- tcg_gen_ori_tl(cpu_ie, cpu_ie, IE_BIE);
- tcg_gen_brcondi_tl(TCG_COND_EQ, t0, IE_IE, l1);
- tcg_gen_andi_tl(cpu_ie, cpu_ie, ~IE_BIE);
- gen_set_label(l1);
-
- /* gpr[ba] = PC */
- tcg_gen_movi_tl(cpu_R[R_BA], dc->pc);
- tcg_temp_free(t0);
-
tcg_gen_movi_tl(cpu_pc, dc->pc);
t_gen_raise_exception(dc, EXCP_BREAKPOINT);
}
tcg_gen_mov_tl(cpu_R[dc->r2], cpu_ie);
break;
case CSR_IM:
- gen_helper_rcsr_im(cpu_R[dc->r2]);
+ gen_helper_rcsr_im(cpu_R[dc->r2], cpu_env);
break;
case CSR_IP:
- gen_helper_rcsr_ip(cpu_R[dc->r2]);
+ gen_helper_rcsr_ip(cpu_R[dc->r2], cpu_env);
break;
case CSR_CC:
tcg_gen_mov_tl(cpu_R[dc->r2], cpu_cc);
tcg_gen_mov_tl(cpu_R[dc->r2], cpu_deba);
break;
case CSR_JTX:
- gen_helper_rcsr_jtx(cpu_R[dc->r2]);
+ gen_helper_rcsr_jtx(cpu_R[dc->r2], cpu_env);
break;
case CSR_JRX:
- gen_helper_rcsr_jrx(cpu_R[dc->r2]);
+ gen_helper_rcsr_jrx(cpu_R[dc->r2], cpu_env);
break;
case CSR_ICC:
case CSR_DCC:
if (use_icount) {
gen_io_start();
}
- gen_helper_wcsr_im(cpu_R[dc->r1]);
+ gen_helper_wcsr_im(cpu_env, cpu_R[dc->r1]);
tcg_gen_movi_tl(cpu_pc, dc->pc + 4);
if (use_icount) {
gen_io_end();
if (use_icount) {
gen_io_start();
}
- gen_helper_wcsr_ip(cpu_R[dc->r1]);
+ gen_helper_wcsr_ip(cpu_env, cpu_R[dc->r1]);
tcg_gen_movi_tl(cpu_pc, dc->pc + 4);
if (use_icount) {
gen_io_end();
tcg_gen_mov_tl(cpu_deba, cpu_R[dc->r1]);
break;
case CSR_JTX:
- gen_helper_wcsr_jtx(cpu_R[dc->r1]);
+ gen_helper_wcsr_jtx(cpu_env, cpu_R[dc->r1]);
break;
case CSR_JRX:
- gen_helper_wcsr_jrx(cpu_R[dc->r1]);
+ gen_helper_wcsr_jrx(cpu_env, cpu_R[dc->r1]);
break;
case CSR_DC:
tcg_gen_mov_tl(cpu_dc, cpu_R[dc->r1]);
}
}
-typedef struct {
- struct {
- uint32_t bits;
- uint32_t mask;
- };
- void (*dec)(DisasContext *dc);
-} DecoderInfo;
+static void dec_ill(DisasContext *dc)
+{
+ cpu_abort(dc->env, "unknown opcode 0x%02x\n", dc->opcode);
+}
+typedef void (*DecoderInfo)(DisasContext *dc);
static const DecoderInfo decinfo[] = {
- {DEC_ADD, dec_add},
- {DEC_AND, dec_and},
- {DEC_ANDHI, dec_andhi},
- {DEC_B, dec_b},
- {DEC_BI, dec_bi},
- {DEC_BE, dec_be},
- {DEC_BG, dec_bg},
- {DEC_BGE, dec_bge},
- {DEC_BGEU, dec_bgeu},
- {DEC_BGU, dec_bgu},
- {DEC_BNE, dec_bne},
- {DEC_CALL, dec_call},
- {DEC_CALLI, dec_calli},
- {DEC_CMPE, dec_cmpe},
- {DEC_CMPG, dec_cmpg},
- {DEC_CMPGE, dec_cmpge},
- {DEC_CMPGEU, dec_cmpgeu},
- {DEC_CMPGU, dec_cmpgu},
- {DEC_CMPNE, dec_cmpne},
- {DEC_DIVU, dec_divu},
- {DEC_LB, dec_lb},
- {DEC_LBU, dec_lbu},
- {DEC_LH, dec_lh},
- {DEC_LHU, dec_lhu},
- {DEC_LW, dec_lw},
- {DEC_MODU, dec_modu},
- {DEC_MUL, dec_mul},
- {DEC_NOR, dec_nor},
- {DEC_OR, dec_or},
- {DEC_ORHI, dec_orhi},
- {DEC_RAISE, dec_raise},
- {DEC_RCSR, dec_rcsr},
- {DEC_SB, dec_sb},
- {DEC_SEXTB, dec_sextb},
- {DEC_SEXTH, dec_sexth},
- {DEC_SH, dec_sh},
- {DEC_SL, dec_sl},
- {DEC_SR, dec_sr},
- {DEC_SRU, dec_sru},
- {DEC_SUB, dec_sub},
- {DEC_SW, dec_sw},
- {DEC_USER, dec_user},
- {DEC_WCSR, dec_wcsr},
- {DEC_XNOR, dec_xnor},
- {DEC_XOR, dec_xor},
+ dec_sru, dec_nor, dec_mul, dec_sh, dec_lb, dec_sr, dec_xor, dec_lh,
+ dec_and, dec_xnor, dec_lw, dec_lhu, dec_sb, dec_add, dec_or, dec_sl,
+ dec_lbu, dec_be, dec_bg, dec_bge, dec_bgeu, dec_bgu, dec_sw, dec_bne,
+ dec_andhi, dec_cmpe, dec_cmpg, dec_cmpge, dec_cmpgeu, dec_cmpgu, dec_orhi,
+ dec_cmpne,
+ dec_sru, dec_nor, dec_mul, dec_divu, dec_rcsr, dec_sr, dec_xor, dec_ill,
+ dec_and, dec_xnor, dec_ill, dec_scall, dec_sextb, dec_add, dec_or, dec_sl,
+ dec_b, dec_modu, dec_sub, dec_user, dec_wcsr, dec_ill, dec_call, dec_sexth,
+ dec_bi, dec_cmpe, dec_cmpg, dec_cmpge, dec_cmpgeu, dec_cmpgu, dec_calli,
+ dec_cmpne
};
-static inline void decode(DisasContext *dc)
+static inline void decode(DisasContext *dc, uint32_t ir)
{
- uint32_t ir;
- int i;
-
- if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP))) {
+ if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP | CPU_LOG_TB_OP_OPT))) {
tcg_gen_debug_insn_start(dc->pc);
}
- dc->ir = ir = ldl_code(dc->pc);
+ dc->ir = ir;
LOG_DIS("%8.8x\t", dc->ir);
/* try guessing 'empty' instruction memory, although it may be a valid
dc->format = OP_FMT_RI;
}
- /* Large switch for all insns. */
- for (i = 0; i < ARRAY_SIZE(decinfo); i++) {
- if ((dc->opcode & decinfo[i].mask) == decinfo[i].bits) {
- decinfo[i].dec(dc);
- return;
- }
- }
+ assert(ARRAY_SIZE(decinfo) == 64);
+ assert(dc->opcode < 64);
- cpu_abort(dc->env, "unknown opcode 0x%02x\n", dc->opcode);
+ decinfo[dc->opcode](dc);
}
-static void check_breakpoint(CPUState *env, DisasContext *dc)
+static void check_breakpoint(CPULM32State *env, DisasContext *dc)
{
CPUBreakpoint *bp;
}
/* generate intermediate code for basic block 'tb'. */
-static void gen_intermediate_code_internal(CPUState *env,
- TranslationBlock *tb, int search_pc)
+static inline
+void gen_intermediate_code_internal(LM32CPU *cpu,
+ TranslationBlock *tb, bool search_pc)
{
+ CPUState *cs = CPU(cpu);
+ CPULM32State *env = &cpu->env;
struct DisasContext ctx, *dc = &ctx;
uint16_t *gen_opc_end;
uint32_t pc_start;
int num_insns;
int max_insns;
- qemu_log_try_set_file(stderr);
-
pc_start = tb->pc;
dc->env = env;
dc->tb = tb;
- gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
+ gen_opc_end = tcg_ctx.gen_opc_buf + OPC_MAX_SIZE;
dc->is_jmp = DISAS_NEXT;
dc->pc = pc_start;
- dc->singlestep_enabled = env->singlestep_enabled;
+ dc->singlestep_enabled = cs->singlestep_enabled;
dc->nr_nops = 0;
if (pc_start & 3) {
cpu_abort(env, "LM32: unaligned PC=%x\n", pc_start);
}
- if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
- qemu_log("-----------------------------------------\n");
- log_cpu_state(env, 0);
- }
-
next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
lj = -1;
num_insns = 0;
max_insns = CF_COUNT_MASK;
}
- gen_icount_start();
+ gen_tb_start();
do {
check_breakpoint(env, dc);
if (search_pc) {
- j = gen_opc_ptr - gen_opc_buf;
+ j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf;
if (lj < j) {
lj++;
while (lj < j) {
- gen_opc_instr_start[lj++] = 0;
+ tcg_ctx.gen_opc_instr_start[lj++] = 0;
}
}
- gen_opc_pc[lj] = dc->pc;
- gen_opc_instr_start[lj] = 1;
- gen_opc_icount[lj] = num_insns;
+ tcg_ctx.gen_opc_pc[lj] = dc->pc;
+ tcg_ctx.gen_opc_instr_start[lj] = 1;
+ tcg_ctx.gen_opc_icount[lj] = num_insns;
}
/* Pretty disas. */
gen_io_start();
}
- decode(dc);
+ decode(dc, cpu_ldl_code(env, dc->pc));
dc->pc += 4;
num_insns++;
} while (!dc->is_jmp
- && gen_opc_ptr < gen_opc_end
- && !env->singlestep_enabled
+ && tcg_ctx.gen_opc_ptr < gen_opc_end
+ && !cs->singlestep_enabled
&& !singlestep
&& (dc->pc < next_page_start)
&& num_insns < max_insns);
gen_io_end();
}
- if (unlikely(env->singlestep_enabled)) {
+ if (unlikely(cs->singlestep_enabled)) {
if (dc->is_jmp == DISAS_NEXT) {
tcg_gen_movi_tl(cpu_pc, dc->pc);
}
}
}
- gen_icount_end(tb, num_insns);
- *gen_opc_ptr = INDEX_op_end;
+ gen_tb_end(tb, num_insns);
+ *tcg_ctx.gen_opc_ptr = INDEX_op_end;
if (search_pc) {
- j = gen_opc_ptr - gen_opc_buf;
+ j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf;
lj++;
while (lj <= j) {
- gen_opc_instr_start[lj++] = 0;
+ tcg_ctx.gen_opc_instr_start[lj++] = 0;
}
} else {
tb->size = dc->pc - pc_start;
#ifdef DEBUG_DISAS
if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
qemu_log("\n");
- log_target_disas(pc_start, dc->pc - pc_start, 0);
- qemu_log("\nisize=%d osize=%zd\n",
- dc->pc - pc_start, gen_opc_ptr - gen_opc_buf);
+ log_target_disas(env, pc_start, dc->pc - pc_start, 0);
+ qemu_log("\nisize=%d osize=%td\n",
+ dc->pc - pc_start, tcg_ctx.gen_opc_ptr -
+ tcg_ctx.gen_opc_buf);
}
#endif
}
-void gen_intermediate_code(CPUState *env, struct TranslationBlock *tb)
+void gen_intermediate_code(CPULM32State *env, struct TranslationBlock *tb)
{
- gen_intermediate_code_internal(env, tb, 0);
+ gen_intermediate_code_internal(lm32_env_get_cpu(env), tb, false);
}
-void gen_intermediate_code_pc(CPUState *env, struct TranslationBlock *tb)
+void gen_intermediate_code_pc(CPULM32State *env, struct TranslationBlock *tb)
{
- gen_intermediate_code_internal(env, tb, 1);
+ gen_intermediate_code_internal(lm32_env_get_cpu(env), tb, true);
}
-void cpu_dump_state(CPUState *env, FILE *f, fprintf_function cpu_fprintf,
- int flags)
+void lm32_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
+ int flags)
{
+ LM32CPU *cpu = LM32_CPU(cs);
+ CPULM32State *env = &cpu->env;
int i;
if (!env || !f) {
cpu_fprintf(f, "\n\n");
}
-void gen_pc_load(CPUState *env, struct TranslationBlock *tb,
- unsigned long searched_pc, int pc_pos, void *puc)
+void restore_state_to_opc(CPULM32State *env, TranslationBlock *tb, int pc_pos)
{
- env->pc = gen_opc_pc[pc_pos];
+ env->pc = tcg_ctx.gen_opc_pc[pc_pos];
}
void lm32_translate_init(void)
for (i = 0; i < ARRAY_SIZE(cpu_R); i++) {
cpu_R[i] = tcg_global_mem_new(TCG_AREG0,
- offsetof(CPUState, regs[i]),
+ offsetof(CPULM32State, regs[i]),
regnames[i]);
}
for (i = 0; i < ARRAY_SIZE(cpu_bp); i++) {
cpu_bp[i] = tcg_global_mem_new(TCG_AREG0,
- offsetof(CPUState, bp[i]),
+ offsetof(CPULM32State, bp[i]),
regnames[32+i]);
}
for (i = 0; i < ARRAY_SIZE(cpu_wp); i++) {
cpu_wp[i] = tcg_global_mem_new(TCG_AREG0,
- offsetof(CPUState, wp[i]),
+ offsetof(CPULM32State, wp[i]),
regnames[36+i]);
}
cpu_pc = tcg_global_mem_new(TCG_AREG0,
- offsetof(CPUState, pc),
+ offsetof(CPULM32State, pc),
"pc");
cpu_ie = tcg_global_mem_new(TCG_AREG0,
- offsetof(CPUState, ie),
+ offsetof(CPULM32State, ie),
"ie");
cpu_icc = tcg_global_mem_new(TCG_AREG0,
- offsetof(CPUState, icc),
+ offsetof(CPULM32State, icc),
"icc");
cpu_dcc = tcg_global_mem_new(TCG_AREG0,
- offsetof(CPUState, dcc),
+ offsetof(CPULM32State, dcc),
"dcc");
cpu_cc = tcg_global_mem_new(TCG_AREG0,
- offsetof(CPUState, cc),
+ offsetof(CPULM32State, cc),
"cc");
cpu_cfg = tcg_global_mem_new(TCG_AREG0,
- offsetof(CPUState, cfg),
+ offsetof(CPULM32State, cfg),
"cfg");
cpu_eba = tcg_global_mem_new(TCG_AREG0,
- offsetof(CPUState, eba),
+ offsetof(CPULM32State, eba),
"eba");
cpu_dc = tcg_global_mem_new(TCG_AREG0,
- offsetof(CPUState, dc),
+ offsetof(CPULM32State, dc),
"dc");
cpu_deba = tcg_global_mem_new(TCG_AREG0,
- offsetof(CPUState, deba),
+ offsetof(CPULM32State, deba),
"deba");
}
projects / qemu.git / blobdiff