diff options
Diffstat (limited to 'target-sh4/translate.c')
| -rw-r--r-- | target-sh4/translate.c | 1073 |
1 files changed, 1073 insertions, 0 deletions
diff --git a/target-sh4/translate.c b/target-sh4/translate.c new file mode 100644 index 0000000000..0013e492d3 --- /dev/null +++ b/target-sh4/translate.c @@ -0,0 +1,1073 @@ +/* + * SH4 translation + * + * Copyright (c) 2005 Samuel Tardieu + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include <stdarg.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <inttypes.h> +#include <assert.h> + +#define DEBUG_DISAS +#define SH4_DEBUG_DISAS +//#define SH4_SINGLE_STEP + +#include "cpu.h" +#include "exec-all.h" +#include "disas.h" + +enum { +#define DEF(s, n, copy_size) INDEX_op_ ## s, +#include "opc.h" +#undef DEF + NB_OPS, +}; + +#ifdef USE_DIRECT_JUMP +#define TBPARAM(x) +#else +#define TBPARAM(x) ((long)(x)) +#endif + +static uint16_t *gen_opc_ptr; +static uint32_t *gen_opparam_ptr; + +#include "gen-op.h" + +typedef struct DisasContext { + struct TranslationBlock *tb; + target_ulong pc; + uint32_t sr; + uint16_t opcode; + uint32_t flags; + int memidx; + uint32_t delayed_pc; + int singlestep_enabled; +} DisasContext; + +#ifdef CONFIG_USER_ONLY + +#define GEN_OP_LD(width) \ + void gen_op_ld##width##_T0_T0 (DisasContext *ctx) { \ + gen_op_ld##width##_T0_T0_raw(); \ + } +#define GEN_OP_ST(width) \ + void gen_op_st##width##_T0_T1 (DisasContext *ctx) { \ + gen_op_st##width##_T0_T1_raw(); \ + } + +#else + +#define GEN_OP_LD(width) \ + void gen_op_ld##width##_T0_T0 (DisasContext *ctx) { \ + if (ctx->memidx) gen_op_ld##width##_T0_T0_kernel(); \ + else gen_op_ld##width##_T0_T0_user();\ + } +#define GEN_OP_ST(width) \ + void gen_op_st##width##_T0_T1 (DisasContext *ctx) { \ + if (ctx->memidx) gen_op_st##width##_T0_T1_kernel(); \ + else gen_op_st##width##_T0_T1_user();\ + } + +#endif + +GEN_OP_LD(ub) + GEN_OP_LD(b) + GEN_OP_ST(b) + GEN_OP_LD(uw) + GEN_OP_LD(w) + GEN_OP_ST(w) + GEN_OP_LD(l) + GEN_OP_ST(l) + +void cpu_dump_state(CPUState * env, FILE * f, + int (*cpu_fprintf) (FILE * f, const char *fmt, ...), + int flags) +{ + int i; + cpu_fprintf(f, "pc=0x%08x sr=0x%08x pr=0x%08x\n", + env->pc, env->sr, env->pr); + for (i = 0; i < 24; i += 4) { + cpu_fprintf(f, "r%d=0x%08x r%d=0x%08x r%d=0x%08x r%d=0x%08x\n", + i, env->gregs[i], i + 1, env->gregs[i + 1], + i + 2, env->gregs[i + 2], i + 3, env->gregs[i + 3]); + } + if (env->flags & DELAY_SLOT) { + cpu_fprintf(f, "in delay slot (delayed_pc=0x%08x)\n", + env->delayed_pc); + } else if (env->flags & DELAY_SLOT_CONDITIONAL) { + cpu_fprintf(f, "in conditional delay slot (delayed_pc=0x%08x)\n", + env->delayed_pc); + } +} + +void cpu_sh4_reset(CPUSH4State * env) +{ + env->sr = 0x700000F0; /* MD, RB, BL, I3-I0 */ + env->vbr = 0; + env->pc = 0xA0000000; + env->fpscr = 0x00040001; + env->mmucr = 0; +} + +CPUSH4State *cpu_sh4_init(void) +{ + CPUSH4State *env; + + env = qemu_mallocz(sizeof(CPUSH4State)); + if (!env) + return NULL; + cpu_exec_init(env); + cpu_sh4_reset(env); + tlb_flush(env, 1); + return env; +} + +#ifdef CONFIG_USER_ONLY +target_ulong cpu_get_phys_page_debug(CPUState * env, target_ulong addr) +{ + return addr; +} +#else +target_ulong cpu_get_phys_page_debug(CPUState * env, target_ulong addr) +{ + target_ulong physical; + int prot; + + get_physical_address(env, &physical, &prot, addr, PAGE_READ, 0); + return physical; +} +#endif + +static void gen_goto_tb(DisasContext * ctx, int n, target_ulong dest) +{ + TranslationBlock *tb; + tb = ctx->tb; + + if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) && + !ctx->singlestep_enabled) { + /* Use a direct jump if in same page and singlestep not enabled */ + if (n == 0) + gen_op_goto_tb0(TBPARAM(tb)); + else + gen_op_goto_tb1(TBPARAM(tb)); + gen_op_movl_imm_T0((long) tb + n); + } else { + gen_op_movl_imm_T0(0); + } + gen_op_movl_imm_PC(dest); + if (ctx->singlestep_enabled) + gen_op_debug(); + gen_op_exit_tb(); +} + +/* Jump to pc after an exception */ +static void gen_jump_exception(DisasContext * ctx) +{ + gen_op_movl_imm_T0(0); + if (ctx->singlestep_enabled) + gen_op_debug(); + gen_op_exit_tb(); +} + +static void gen_jump(DisasContext * ctx) +{ + if (ctx->delayed_pc == (uint32_t) - 1) { + /* Target is not statically known, it comes necessarily from a + delayed jump as immediate jump are conditinal jumps */ + gen_op_movl_delayed_pc_PC(); + gen_op_movl_imm_T0(0); + if (ctx->singlestep_enabled) + gen_op_debug(); + gen_op_exit_tb(); + } else { + gen_goto_tb(ctx, 0, ctx->delayed_pc); + } +} + +/* Immediate conditional jump (bt or bf) */ +static void gen_conditional_jump(DisasContext * ctx, + target_ulong ift, target_ulong ifnott) +{ + int l1; + + l1 = gen_new_label(); + gen_op_jT(l1); + gen_goto_tb(ctx, 0, ifnott); + gen_set_label(l1); + gen_goto_tb(ctx, 1, ift); +} + +/* Delayed conditional jump (bt or bf) */ +static void gen_delayed_conditional_jump(DisasContext * ctx) +{ + int l1; + + l1 = gen_new_label(); + gen_op_jTT2(l1); + gen_goto_tb(ctx, 0, ctx->pc); + gen_set_label(l1); + gen_goto_tb(ctx, 1, ctx->delayed_pc); +} + +#define B3_0 (ctx->opcode & 0xf) +#define B6_4 ((ctx->opcode >> 4) & 0x7) +#define B7_4 ((ctx->opcode >> 4) & 0xf) +#define B7_0 (ctx->opcode & 0xff) +#define B7_0s ((int32_t) (int8_t) (ctx->opcode & 0xff)) +#define B11_0s (ctx->opcode & 0x800 ? 0xfffff000 | (ctx->opcode & 0xfff) : \ + (ctx->opcode & 0xfff)) +#define B11_8 ((ctx->opcode >> 8) & 0xf) +#define B15_12 ((ctx->opcode >> 12) & 0xf) + +#define REG(x) ((x) < 8 && (ctx->sr & (SR_MD | SR_RB)) == (SR_MD | SR_RB) ? \ + (x) + 16 : (x)) + +#define ALTREG(x) ((x) < 8 && (ctx->sr & (SR_MD | SR_RB)) != (SR_MD | SR_RB) \ + ? (x) + 16 : (x)) + +#define CHECK_NOT_DELAY_SLOT \ + if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) \ + {gen_op_raise_slot_illegal_instruction (); ctx->flags |= BRANCH_EXCEPTION; \ + return;} + +void decode_opc(DisasContext * ctx) +{ +#if 0 + fprintf(stderr, "Translating opcode 0x%04x\n", ctx->opcode); +#endif + switch (ctx->opcode) { + case 0x0019: /* div0u */ + printf("div0u\n"); + gen_op_div0u(); + return; + case 0x000b: /* rts */ + CHECK_NOT_DELAY_SLOT gen_op_rts(); + ctx->flags |= DELAY_SLOT; + ctx->delayed_pc = (uint32_t) - 1; + return; + case 0x0028: /* clrmac */ + gen_op_clrmac(); + return; + case 0x0048: /* clrs */ + gen_op_clrs(); + return; + case 0x0008: /* clrt */ + gen_op_clrt(); + return; + case 0x0038: /* ldtlb */ + assert(0); /* XXXXX */ + return; + case 0x004b: /* rte */ + CHECK_NOT_DELAY_SLOT gen_op_rte(); + ctx->flags |= DELAY_SLOT; + ctx->delayed_pc = (uint32_t) - 1; + return; + case 0x0058: /* sets */ + gen_op_sets(); + return; + case 0x0018: /* sett */ + gen_op_sett(); + return; + case 0xfbfb: /* frchg */ + assert(0); /* XXXXX */ + return; + case 0xf3fb: /* fschg */ + assert(0); /* XXXXX */ + return; + case 0x0009: /* nop */ + return; + case 0x001b: /* sleep */ + assert(0); /* XXXXX */ + return; + } + + switch (ctx->opcode & 0xf000) { + case 0x1000: /* mov.l Rm,@(disp,Rn) */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_addl_imm_T1(B3_0 * 4); + gen_op_stl_T0_T1(ctx); + return; + case 0x5000: /* mov.l @(disp,Rm),Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_addl_imm_T0(B3_0 * 4); + gen_op_ldl_T0_T0(ctx); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0xe000: /* mov.l #imm,Rn */ + gen_op_movl_imm_rN(B7_0s, REG(B11_8)); + return; + case 0x9000: /* mov.w @(disp,PC),Rn */ + gen_op_movl_imm_T0(ctx->pc + 4 + B7_0 * 2); + gen_op_ldw_T0_T0(ctx); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0xd000: /* mov.l @(disp,PC),Rn */ + gen_op_movl_imm_T0((ctx->pc + 4 + B7_0 * 4) & ~3); + gen_op_ldl_T0_T0(ctx); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0x7000: /* add.l #imm,Rn */ + gen_op_add_imm_rN(B7_0s, REG(B11_8)); + return; + case 0xa000: /* bra disp */ + CHECK_NOT_DELAY_SLOT + gen_op_bra(ctx->delayed_pc = ctx->pc + 4 + B11_0s * 2); + ctx->flags |= DELAY_SLOT; + return; + case 0xb000: /* bsr disp */ + CHECK_NOT_DELAY_SLOT + gen_op_bsr(ctx->pc + 4, ctx->delayed_pc = + ctx->pc + 4 + B11_0s * 2); + ctx->flags |= DELAY_SLOT; + return; + } + + switch (ctx->opcode & 0xf00f) { + case 0x6003: /* mov Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0x2000: /* mov.b Rm,@Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_stb_T0_T1(ctx); + return; + case 0x2001: /* mov.w Rm,@Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_stw_T0_T1(ctx); + return; + case 0x2002: /* mov.l Rm,@Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_stl_T0_T1(ctx); + return; + case 0x6000: /* mov.b @Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_ldb_T0_T0(ctx); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0x6001: /* mov.w @Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_ldw_T0_T0(ctx); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0x6002: /* mov.l @Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_ldl_T0_T0(ctx); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0x2004: /* mov.b Rm,@-Rn */ + gen_op_dec1_rN(REG(B11_8)); + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_stb_T0_T1(ctx); + return; + case 0x2005: /* mov.w Rm,@-Rn */ + gen_op_dec2_rN(REG(B11_8)); + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_stw_T0_T1(ctx); + return; + case 0x2006: /* mov.l Rm,@-Rn */ + gen_op_dec4_rN(REG(B11_8)); + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_stl_T0_T1(ctx); + return; + case 0x6004: /* mov.l @Rm+,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_ldb_T0_T0(ctx); + gen_op_movl_T0_rN(REG(B11_8)); + gen_op_inc1_rN(REG(B7_4)); + return; + case 0x6005: /* mov.w @Rm+,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_ldw_T0_T0(ctx); + gen_op_movl_T0_rN(REG(B11_8)); + gen_op_inc2_rN(REG(B7_4)); + return; + case 0x6006: /* mov.l @Rm+,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_ldl_T0_T0(ctx); + gen_op_movl_T0_rN(REG(B11_8)); + gen_op_inc4_rN(REG(B7_4)); + return; + case 0x0004: /* mov.b Rm,@(R0,Rn) */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_add_rN_T1(REG(0)); + gen_op_stb_T0_T1(ctx); + return; + case 0x0005: /* mov.w Rm,@(R0,Rn) */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_add_rN_T1(REG(0)); + gen_op_stw_T0_T1(ctx); + return; + case 0x0006: /* mov.l Rm,@(R0,Rn) */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_add_rN_T1(REG(0)); + gen_op_stl_T0_T1(ctx); + return; + case 0x000c: /* mov.b @(R0,Rm),Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_add_rN_T0(REG(0)); + gen_op_ldb_T0_T0(ctx); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0x000d: /* mov.w @(R0,Rm),Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_add_rN_T0(REG(0)); + gen_op_ldw_T0_T0(ctx); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0x000e: /* mov.l @(R0,Rm),Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_add_rN_T0(REG(0)); + gen_op_ldl_T0_T0(ctx); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0x6008: /* swap.b Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_swapb_T0(); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0x6009: /* swap.w Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_swapw_T0(); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0x200d: /* xtrct Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_xtrct_T0_T1(); + gen_op_movl_T1_rN(REG(B11_8)); + return; + case 0x300c: /* add Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_add_T0_rN(REG(B11_8)); + return; + case 0x300e: /* addc Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_addc_T0_T1(); + gen_op_movl_T1_rN(REG(B11_8)); + return; + case 0x300f: /* addv Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_addv_T0_T1(); + gen_op_movl_T1_rN(REG(B11_8)); + return; + case 0x2009: /* and Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_and_T0_rN(REG(B11_8)); + return; + case 0x3000: /* cmp/eq Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_cmp_eq_T0_T1(); + return; + case 0x3003: /* cmp/ge Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_cmp_ge_T0_T1(); + return; + case 0x3007: /* cmp/gt Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_cmp_gt_T0_T1(); + return; + case 0x3006: /* cmp/hi Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_cmp_hi_T0_T1(); + return; + case 0x3002: /* cmp/hs Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_cmp_hs_T0_T1(); + return; + case 0x200c: /* cmp/str Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_cmp_str_T0_T1(); + return; + case 0x2007: /* div0s Rm,Rn */ + printf("div0s\n"); + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_div0s_T0_T1(); + gen_op_movl_T1_rN(REG(B11_8)); + return; + case 0x3004: /* div1 Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_div1_T0_T1(); + gen_op_movl_T1_rN(REG(B11_8)); + return; + case 0x300d: /* dmuls.l Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_dmulsl_T0_T1(); + return; + case 0x3005: /* dmulu.l Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_dmulul_T0_T1(); + return; + case 0x600e: /* exts.b Rm,Rn */ + gen_op_movb_rN_T0(REG(B7_4)); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0x600f: /* exts.w Rm,Rn */ + gen_op_movw_rN_T0(REG(B7_4)); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0x600c: /* extu.b Rm,Rn */ + gen_op_movub_rN_T0(REG(B7_4)); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0x600d: /* extu.w Rm,Rn */ + gen_op_movuw_rN_T0(REG(B7_4)); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0x000f: /* mac.l @Rm+,@Rn- */ + gen_op_movl_rN_T0(REG(B11_8)); + gen_op_ldl_T0_T0(ctx); + gen_op_movl_T0_T1(); + gen_op_movl_rN_T1(REG(B7_4)); + gen_op_ldl_T0_T0(ctx); + gen_op_macl_T0_T1(); + gen_op_inc4_rN(REG(B7_4)); + gen_op_inc4_rN(REG(B11_8)); + return; + case 0x400f: /* mac.w @Rm+,@Rn+ */ + gen_op_movl_rN_T0(REG(B11_8)); + gen_op_ldl_T0_T0(ctx); + gen_op_movl_T0_T1(); + gen_op_movl_rN_T1(REG(B7_4)); + gen_op_ldl_T0_T0(ctx); + gen_op_macw_T0_T1(); + gen_op_inc2_rN(REG(B7_4)); + gen_op_inc2_rN(REG(B11_8)); + return; + case 0x0007: /* mul.l Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_mull_T0_T1(); + return; + case 0x200f: /* muls.w Rm,Rn */ + gen_op_movw_rN_T0(REG(B7_4)); + gen_op_movw_rN_T1(REG(B11_8)); + gen_op_mulsw_T0_T1(); + return; + case 0x200e: /* mulu.w Rm,Rn */ + gen_op_movuw_rN_T0(REG(B7_4)); + gen_op_movuw_rN_T1(REG(B11_8)); + gen_op_muluw_T0_T1(); + return; + case 0x600b: /* neg Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_neg_T0(); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0x600a: /* negc Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_negc_T0(); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0x6007: /* not Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_not_T0(); + gen_op_movl_T0_rN(REG(B11_8)); + return; + case 0x200b: /* or Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_or_T0_rN(REG(B11_8)); + return; + case 0x400c: /* shad Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_shad_T0_T1(); + gen_op_movl_T1_rN(REG(B11_8)); + return; + case 0x400d: /* shld Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_shld_T0_T1(); + gen_op_movl_T1_rN(REG(B11_8)); + return; + case 0x3008: /* sub Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_sub_T0_rN(REG(B11_8)); + return; + case 0x300a: /* subc Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_subc_T0_T1(); + gen_op_movl_T1_rN(REG(B11_8)); + return; + case 0x300b: /* subv Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_subv_T0_T1(); + gen_op_movl_T1_rN(REG(B11_8)); + return; + case 0x2008: /* tst Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_tst_T0_T1(); + return; + case 0x200a: /* xor Rm,Rn */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_xor_T0_rN(REG(B11_8)); + return; + } + + switch (ctx->opcode & 0xff00) { + case 0xc900: /* and #imm,R0 */ + gen_op_and_imm_rN(B7_0, REG(0)); + return; + case 0xcd00: /* and.b #imm,@(R0+GBR) */ + gen_op_movl_rN_T0(REG(0)); + gen_op_addl_GBR_T0(); + gen_op_movl_T0_T1(); + gen_op_ldb_T0_T0(ctx); + gen_op_and_imm_T0(B7_0); + gen_op_stb_T0_T1(ctx); + return; + case 0x8b00: /* bf label */ + CHECK_NOT_DELAY_SLOT + gen_conditional_jump(ctx, ctx->pc + 2, + ctx->pc + 4 + B7_0s * 2); + ctx->flags |= BRANCH_CONDITIONAL; + return; + case 0x8f00: /* bf/s label */ + CHECK_NOT_DELAY_SLOT + gen_op_bf_s(ctx->delayed_pc = ctx->pc + 4 + B7_0s * 2); + ctx->flags |= DELAY_SLOT_CONDITIONAL; + return; + case 0x8900: /* bt label */ + CHECK_NOT_DELAY_SLOT + gen_conditional_jump(ctx, ctx->pc + 4 + B7_0s * 2, + ctx->pc + 2); + ctx->flags |= BRANCH_CONDITIONAL; + return; + case 0x8d00: /* bt/s label */ + CHECK_NOT_DELAY_SLOT + gen_op_bt_s(ctx->delayed_pc = ctx->pc + 4 + B7_0s * 2); + ctx->flags |= DELAY_SLOT_CONDITIONAL; + return; + case 0x8800: /* cmp/eq #imm,R0 */ + gen_op_movl_rN_T0(REG(0)); + gen_op_cmp_eq_imm_T0(B7_0s); + return; + case 0xc400: /* mov.b @(disp,GBR),R0 */ + gen_op_stc_gbr_T0(); + gen_op_addl_imm_T0(B7_0); + gen_op_ldb_T0_T0(ctx); + gen_op_movl_T0_rN(REG(0)); + return; + case 0xc500: /* mov.w @(disp,GBR),R0 */ + gen_op_stc_gbr_T0(); + gen_op_addl_imm_T0(B7_0); + gen_op_ldw_T0_T0(ctx); + gen_op_movl_T0_rN(REG(0)); + return; + case 0xc600: /* mov.l @(disp,GBR),R0 */ + gen_op_stc_gbr_T0(); + gen_op_addl_imm_T0(B7_0); + gen_op_ldl_T0_T0(ctx); + gen_op_movl_T0_rN(REG(0)); + return; + case 0xc000: /* mov.b R0,@(disp,GBR) */ + gen_op_stc_gbr_T0(); + gen_op_addl_imm_T0(B7_0); + gen_op_movl_T0_T1(); + gen_op_movl_rN_T0(REG(0)); + gen_op_stb_T0_T1(ctx); + return; + case 0xc100: /* mov.w R0,@(disp,GBR) */ + gen_op_stc_gbr_T0(); + gen_op_addl_imm_T0(B7_0); + gen_op_movl_T0_T1(); + gen_op_movl_rN_T0(REG(0)); + gen_op_stw_T0_T1(ctx); + return; + case 0xc200: /* mov.l R0,@(disp,GBR) */ + gen_op_stc_gbr_T0(); + gen_op_addl_imm_T0(B7_0); + gen_op_movl_T0_T1(); + gen_op_movl_rN_T0(REG(0)); + gen_op_stl_T0_T1(ctx); + return; + case 0x8000: /* mov.b R0,@(disp,Rn) */ + gen_op_movl_rN_T0(REG(0)); + gen_op_movl_rN_T1(REG(B7_4)); + gen_op_addl_imm_T1(B3_0); + gen_op_stb_T0_T1(ctx); + return; + case 0x8100: /* mov.w R0,@(disp,Rn) */ + gen_op_movl_rN_T0(REG(0)); + gen_op_movl_rN_T1(REG(B7_4)); + gen_op_addl_imm_T1(B3_0 * 2); + gen_op_stw_T0_T1(ctx); + return; + case 0x8400: /* mov.b @(disp,Rn),R0 */ + gen_op_movl_rN_T0(REG(0)); + gen_op_movl_rN_T1(REG(B7_4)); + gen_op_addl_imm_T1(B3_0); + gen_op_stb_T0_T1(ctx); + return; + case 0x8500: /* mov.w @(disp,Rn),R0 */ + gen_op_movl_rN_T0(REG(B7_4)); + gen_op_addl_imm_T0(B3_0 * 2); + gen_op_ldw_T0_T0(ctx); + gen_op_movl_T0_rN(REG(0)); + return; + case 0xc700: /* mova @(disp,PC),R0 */ + gen_op_movl_imm_rN(((ctx->pc & 0xfffffffc) + 4 + B7_0 * 4) & ~3, + REG(0)); + return; + case 0xcb00: /* or #imm,R0 */ + gen_op_or_imm_rN(B7_0, REG(0)); + return; + case 0xcf00: /* or.b #imm,@(R0+GBR) */ + gen_op_movl_rN_T0(REG(0)); + gen_op_addl_GBR_T0(); + gen_op_movl_T0_T1(); + gen_op_ldb_T0_T0(ctx); + gen_op_or_imm_T0(B7_0); + gen_op_stb_T0_T1(ctx); + return; + case 0xc300: /* trapa #imm */ + CHECK_NOT_DELAY_SLOT gen_op_movl_imm_PC(ctx->pc); + gen_op_trapa(B7_0); + ctx->flags |= BRANCH; + return; + case 0xc800: /* tst #imm,R0 */ + gen_op_tst_imm_rN(B7_0, REG(0)); + return; + case 0xcc00: /* tst #imm,@(R0+GBR) */ + gen_op_movl_rN_T0(REG(0)); + gen_op_addl_GBR_T0(); + gen_op_ldb_T0_T0(ctx); + gen_op_tst_imm_T0(B7_0); + return; + case 0xca00: /* xor #imm,R0 */ + gen_op_xor_imm_rN(B7_0, REG(0)); + return; + case 0xce00: /* xor.b #imm,@(R0+GBR) */ + gen_op_movl_rN_T0(REG(0)); + gen_op_addl_GBR_T0(); + gen_op_movl_T0_T1(); + gen_op_ldb_T0_T0(ctx); + gen_op_xor_imm_T0(B7_0); + gen_op_stb_T0_T1(ctx); + return; + } + + switch (ctx->opcode & 0xf08f) { + case 0x408e: /* ldc Rm,Rn_BANK */ + gen_op_movl_rN_rN(REG(B11_8), ALTREG(B6_4)); + return; + case 0x4087: /* ldc.l @Rm+,Rn_BANK */ + gen_op_movl_rN_T0(REG(B11_8)); + gen_op_ldl_T0_T0(ctx); + gen_op_movl_T0_rN(ALTREG(B6_4)); + gen_op_inc4_rN(REG(B11_8)); + return; + case 0x0082: /* stc Rm_BANK,Rn */ + gen_op_movl_rN_rN(ALTREG(B6_4), REG(B11_8)); + return; + case 0x4083: /* stc.l Rm_BANK,@-Rn */ + gen_op_dec4_rN(REG(B11_8)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_movl_rN_T0(ALTREG(B6_4)); + gen_op_stl_T0_T1(ctx); + return; + } + + switch (ctx->opcode & 0xf0ff) { + case 0x0023: /* braf Rn */ + CHECK_NOT_DELAY_SLOT gen_op_movl_rN_T0(REG(B11_8)); + gen_op_braf_T0(ctx->pc + 4); + ctx->flags |= DELAY_SLOT; + ctx->delayed_pc = (uint32_t) - 1; + return; + case 0x0003: /* bsrf Rn */ + CHECK_NOT_DELAY_SLOT gen_op_movl_rN_T0(REG(B11_8)); + gen_op_bsrf_T0(ctx->pc + 4); + ctx->flags |= DELAY_SLOT; + ctx->delayed_pc = (uint32_t) - 1; + return; + case 0x4015: /* cmp/pl Rn */ + gen_op_movl_rN_T0(REG(B11_8)); + gen_op_cmp_pl_T0(); + return; + case 0x4011: /* cmp/pz Rn */ + gen_op_movl_rN_T0(REG(B11_8)); + gen_op_cmp_pz_T0(); + return; + case 0x4010: /* dt Rn */ + gen_op_dt_rN(REG(B11_8)); + return; + case 0x402b: /* jmp @Rn */ + CHECK_NOT_DELAY_SLOT gen_op_movl_rN_T0(REG(B11_8)); + gen_op_jmp_T0(); + ctx->flags |= DELAY_SLOT; + ctx->delayed_pc = (uint32_t) - 1; + return; + case 0x400b: /* jsr @Rn */ + CHECK_NOT_DELAY_SLOT gen_op_movl_rN_T0(REG(B11_8)); + gen_op_jsr_T0(ctx->pc + 4); + ctx->flags |= DELAY_SLOT; + ctx->delayed_pc = (uint32_t) - 1; + return; +#define LDST(reg,ldnum,ldpnum,ldop,stnum,stpnum,stop,extrald) \ + case ldnum: \ + gen_op_movl_rN_T0 (REG(B11_8)); \ + gen_op_##ldop##_T0_##reg (); \ + extrald \ + return; \ + case ldpnum: \ + gen_op_movl_rN_T0 (REG(B11_8)); \ + gen_op_ldl_T0_T0 (ctx); \ + gen_op_inc4_rN (REG(B11_8)); \ + gen_op_##ldop##_T0_##reg (); \ + extrald \ + return; \ + case stnum: \ + gen_op_##stop##_##reg##_T0 (); \ + gen_op_movl_T0_rN (REG(B11_8)); \ + return; \ + case stpnum: \ + gen_op_##stop##_##reg##_T0 (); \ + gen_op_dec4_rN (REG(B11_8)); \ + gen_op_movl_rN_T1 (REG(B11_8)); \ + gen_op_stl_T0_T1 (ctx); \ + return; + LDST(sr, 0x400e, 0x4007, ldc, 0x0002, 0x4003, stc, ctx->flags |= + MODE_CHANGE; + ) + LDST(gbr, 0x401e, 0x4017, ldc, 0x0012, 0x4013, stc,) + LDST(vbr, 0x402e, 0x4027, ldc, 0x0022, 0x4023, stc,) + LDST(ssr, 0x403e, 0x4037, ldc, 0x0032, 0x4033, stc,) + LDST(spc, 0x404e, 0x4047, ldc, 0x0042, 0x4043, stc,) + LDST(dbr, 0x40fa, 0x40f6, ldc, 0x00fa, 0x40f2, stc,) + LDST(mach, 0x400a, 0x4006, lds, 0x000a, 0x4002, sts,) + LDST(macl, 0x401a, 0x4016, lds, 0x001a, 0x4012, sts,) + LDST(pr, 0x402a, 0x4026, lds, 0x002a, 0x4022, sts,) + case 0x00c3: /* movca.l R0,@Rm */ + gen_op_movl_rN_T0(REG(0)); + gen_op_movl_rN_T1(REG(B11_8)); + gen_op_stl_T0_T1(ctx); + return; + case 0x0029: /* movt Rn */ + gen_op_movt_rN(REG(B11_8)); + return; + case 0x0093: /* ocbi @Rn */ + gen_op_movl_rN_T0(REG(B11_8)); + gen_op_ldl_T0_T0(ctx); + return; + case 0x00a2: /* ocbp @Rn */ + gen_op_movl_rN_T0(REG(B11_8)); + gen_op_ldl_T0_T0(ctx); + return; + case 0x00b3: /* ocbwb @Rn */ + gen_op_movl_rN_T0(REG(B11_8)); + gen_op_ldl_T0_T0(ctx); + return; + case 0x0083: /* pref @Rn */ + return; + case 0x4024: /* rotcl Rn */ + gen_op_rotcl_Rn(REG(B11_8)); + return; + case 0x4025: /* rotcr Rn */ + gen_op_rotcr_Rn(REG(B11_8)); + return; + case 0x4004: /* rotl Rn */ + gen_op_rotl_Rn(REG(B11_8)); + return; + case 0x4005: /* rotr Rn */ + gen_op_rotr_Rn(REG(B11_8)); + return; + case 0x4000: /* shll Rn */ + case 0x4020: /* shal Rn */ + gen_op_shal_Rn(REG(B11_8)); + return; + case 0x4021: /* shar Rn */ + gen_op_shar_Rn(REG(B11_8)); + return; + case 0x4001: /* shlr Rn */ + gen_op_shlr_Rn(REG(B11_8)); + return; + case 0x4008: /* shll2 Rn */ + gen_op_shll2_Rn(REG(B11_8)); + return; + case 0x4018: /* shll8 Rn */ + gen_op_shll8_Rn(REG(B11_8)); + return; + case 0x4028: /* shll16 Rn */ + gen_op_shll16_Rn(REG(B11_8)); + return; + case 0x4009: /* shlr2 Rn */ + gen_op_shlr2_Rn(REG(B11_8)); + return; + case 0x4019: /* shlr8 Rn */ + gen_op_shlr8_Rn(REG(B11_8)); + return; + case 0x4029: /* shlr16 Rn */ + gen_op_shlr16_Rn(REG(B11_8)); + return; + case 0x401b: /* tas.b @Rn */ + gen_op_tasb_rN(REG(B11_8)); + return; + } + + fprintf(stderr, "unknown instruction 0x%04x at pc 0x%08x\n", + ctx->opcode, ctx->pc); + gen_op_raise_illegal_instruction(); + ctx->flags |= BRANCH_EXCEPTION; +} + +int gen_intermediate_code_internal(CPUState * env, TranslationBlock * tb, + int search_pc) +{ + DisasContext ctx; + target_ulong pc_start; + static uint16_t *gen_opc_end; + uint32_t old_flags; + int i; + + pc_start = tb->pc; + gen_opc_ptr = gen_opc_buf; + gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; + gen_opparam_ptr = gen_opparam_buf; + ctx.pc = pc_start; + ctx.flags = env->flags; + old_flags = 0; + ctx.sr = env->sr; + ctx.memidx = (env->sr & SR_MD) ? 1 : 0; + ctx.delayed_pc = env->delayed_pc; + ctx.tb = tb; + ctx.singlestep_enabled = env->singlestep_enabled; + nb_gen_labels = 0; + +#ifdef DEBUG_DISAS + if (loglevel & CPU_LOG_TB_CPU) { + fprintf(logfile, + "------------------------------------------------\n"); + cpu_dump_state(env, logfile, fprintf, 0); + } +#endif + + while ((old_flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) == 0 && + (ctx.flags & (BRANCH | BRANCH_CONDITIONAL | MODE_CHANGE | + BRANCH_EXCEPTION)) == 0 && + gen_opc_ptr < gen_opc_end && ctx.sr == env->sr) { + old_flags = ctx.flags; + if (env->nb_breakpoints > 0) { + for (i = 0; i < env->nb_breakpoints; i++) { + if (ctx.pc == env->breakpoints[i]) { + /* We have hit a breakpoint - make sure PC is up-to-date */ + gen_op_movl_imm_PC(ctx.pc); + gen_op_debug(); + ctx.flags |= BRANCH_EXCEPTION; + break; + } + } + } +#if 0 + fprintf(stderr, "Loading opcode at address 0x%08x\n", ctx.pc); + fflush(stderr); +#endif + ctx.opcode = lduw_code(ctx.pc); + decode_opc(&ctx); + ctx.pc += 2; + if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0) + break; + if (env->singlestep_enabled) + break; +#ifdef SH4_SINGLE_STEP + break; +#endif + } + + switch (old_flags & (DELAY_SLOT_CONDITIONAL | DELAY_SLOT)) { + case DELAY_SLOT_CONDITIONAL: + gen_op_clr_delay_slot_conditional(); + gen_delayed_conditional_jump(&ctx); + break; + case DELAY_SLOT: + gen_op_clr_delay_slot(); + gen_jump(&ctx); + break; + case 0: + if (ctx.flags & BRANCH_EXCEPTION) { + gen_jump_exception(&ctx); + } else if ((ctx.flags & (BRANCH | BRANCH_CONDITIONAL)) == 0) { + gen_goto_tb(&ctx, 0, ctx.pc); + } + break; + default: + /* Both cannot be set at the same time */ + assert(0); + } + + if (env->singlestep_enabled) { + gen_op_debug(); + } + *gen_opc_ptr = INDEX_op_end; + tb->size = ctx.pc - pc_start; + +#ifdef DEBUG_DISAS +#ifdef SH4_DEBUG_DISAS + if (loglevel & CPU_LOG_TB_IN_ASM) + fprintf(logfile, "\n"); +#endif + if (loglevel & CPU_LOG_TB_IN_ASM) { + fprintf(logfile, "IN:\n"); /* , lookup_symbol(pc_start)); */ + target_disas(logfile, pc_start, ctx.pc - pc_start, 0); + fprintf(logfile, "\n"); + } + if (loglevel & CPU_LOG_TB_OP) { + fprintf(logfile, "OP:\n"); + dump_ops(gen_opc_buf, gen_opparam_buf); + fprintf(logfile, "\n"); + } +#endif + return 0; +} + +int gen_intermediate_code(CPUState * env, struct TranslationBlock *tb) +{ + return gen_intermediate_code_internal(env, tb, 0); +} + +int gen_intermediate_code_pc(CPUState * env, struct TranslationBlock *tb) +{ + assert(0); + return gen_intermediate_code_internal(env, tb, 1); +} |