diff options
author | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-11-19 18:00:47 +0000 |
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committer | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-11-19 18:00:47 +0000 |
commit | 66ba317c90fc9b668374574e3dc4f45586f56dca (patch) | |
tree | 56d6b6068ac09325e272d91b0866ed039aa4923a /target-sh4/translate.c | |
parent | 9850d1e82c3712f5ab2b4f1c40e452570a4a21e5 (diff) |
target-sh4: map FP registers as TCG variables
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5758 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-sh4/translate.c')
-rw-r--r-- | target-sh4/translate.c | 149 |
1 files changed, 43 insertions, 106 deletions
diff --git a/target-sh4/translate.c b/target-sh4/translate.c index eb3366ccc8..f8371e2e00 100644 --- a/target-sh4/translate.c +++ b/target-sh4/translate.c @@ -72,6 +72,7 @@ static TCGv cpu_gregs[24]; static TCGv cpu_pc, cpu_sr, cpu_ssr, cpu_spc, cpu_gbr; static TCGv cpu_vbr, cpu_sgr, cpu_dbr, cpu_mach, cpu_macl; static TCGv cpu_pr, cpu_fpscr, cpu_fpul, cpu_flags; +static TCGv cpu_fregs[32]; /* internal register indexes */ static TCGv cpu_flags, cpu_delayed_pc; @@ -89,6 +90,16 @@ static void sh4_translate_init(void) "R0_BANK1", "R1_BANK1", "R2_BANK1", "R3_BANK1", "R4_BANK1", "R5_BANK1", "R6_BANK1", "R7_BANK1" }; + static const char * const fregnames[32] = { + "FPR0_BANK0", "FPR1_BANK0", "FPR2_BANK0", "FPR3_BANK0", + "FPR4_BANK0", "FPR5_BANK0", "FPR6_BANK0", "FPR7_BANK0", + "FPR8_BANK0", "FPR9_BANK0", "FPR10_BANK0", "FPR11_BANK0", + "FPR12_BANK0", "FPR13_BANK0", "FPR14_BANK0", "FPR15_BANK0", + "FPR0_BANK1", "FPR1_BANK1", "FPR2_BANK1", "FPR3_BANK1", + "FPR4_BANK1", "FPR5_BANK1", "FPR6_BANK1", "FPR7_BANK1", + "FPR8_BANK1", "FPR9_BANK1", "FPR10_BANK1", "FPR11_BANK1", + "FPR12_BANK1", "FPR13_BANK1", "FPR14_BANK1", "FPR15_BANK1", + }; if (done_init) return; @@ -97,8 +108,8 @@ static void sh4_translate_init(void) for (i = 0; i < 24; i++) cpu_gregs[i] = tcg_global_mem_new_i32(TCG_AREG0, - offsetof(CPUState, gregs[i]), - gregnames[i]); + offsetof(CPUState, gregs[i]), + gregnames[i]); cpu_pc = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUState, pc), "PC"); @@ -133,6 +144,11 @@ static void sh4_translate_init(void) offsetof(CPUState, delayed_pc), "_delayed_pc_"); + for (i = 0; i < 32; i++) + cpu_fregs[i] = tcg_global_mem_new_i32(TCG_AREG0, + offsetof(CPUState, fregs[i]), + fregnames[i]); + /* register helpers */ #define GEN_HELPER 2 #include "helper.h" @@ -393,38 +409,19 @@ static inline void gen_copy_bit_i32(TCGv t0, int p0, TCGv t1, int p1) tcg_temp_free(tmp); } - -static inline void gen_load_fpr32(TCGv_i32 t, int reg) -{ - tcg_gen_ld_i32(t, cpu_env, offsetof(CPUState, fregs[reg])); -} - static inline void gen_load_fpr64(TCGv_i64 t, int reg) { - TCGv_i32 tmp1 = tcg_temp_new_i32(); - TCGv_i32 tmp2 = tcg_temp_new_i32(); - - tcg_gen_ld_i32(tmp1, cpu_env, offsetof(CPUState, fregs[reg])); - tcg_gen_ld_i32(tmp2, cpu_env, offsetof(CPUState, fregs[reg + 1])); - tcg_gen_concat_i32_i64(t, tmp2, tmp1); - tcg_temp_free_i32(tmp1); - tcg_temp_free_i32(tmp2); -} - -static inline void gen_store_fpr32(TCGv_i32 t, int reg) -{ - tcg_gen_st_i32(t, cpu_env, offsetof(CPUState, fregs[reg])); + tcg_gen_concat_i32_i64(t, cpu_fregs[reg + 1], cpu_fregs[reg]); } static inline void gen_store_fpr64 (TCGv_i64 t, int reg) { TCGv_i32 tmp = tcg_temp_new_i32(); - tcg_gen_trunc_i64_i32(tmp, t); - tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUState, fregs[reg + 1])); + tcg_gen_mov_i32(cpu_fregs[reg + 1], tmp); tcg_gen_shri_i64(t, t, 32); tcg_gen_trunc_i64_i32(tmp, t); - tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUState, fregs[reg])); + tcg_gen_mov_i32(cpu_fregs[reg], tmp); tcg_temp_free_i32(tmp); } @@ -989,10 +986,7 @@ static void _decode_opc(DisasContext * ctx) gen_store_fpr64(fp, XREG(B11_8)); tcg_temp_free_i64(fp); } else { - TCGv_i32 fp = tcg_temp_new_i32(); - gen_load_fpr32(fp, FREG(B7_4)); - gen_store_fpr32(fp, FREG(B11_8)); - tcg_temp_free_i32(fp); + tcg_gen_mov_i32(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); } return; case 0xf00a: /* fmov {F,D,X}Rm,@Rn - FPSCR: Nothing */ @@ -1002,10 +996,7 @@ static void _decode_opc(DisasContext * ctx) tcg_gen_qemu_st64(fp, REG(B11_8), ctx->memidx); tcg_temp_free_i64(fp); } else { - TCGv_i32 fp = tcg_temp_new_i32(); - gen_load_fpr32(fp, FREG(B7_4)); - tcg_gen_qemu_st32(fp, REG(B11_8), ctx->memidx); - tcg_temp_free_i32(fp); + tcg_gen_qemu_st32(cpu_fregs[FREG(B7_4)], REG(B11_8), ctx->memidx); } return; case 0xf008: /* fmov @Rm,{F,D,X}Rn - FPSCR: Nothing */ @@ -1015,10 +1006,7 @@ static void _decode_opc(DisasContext * ctx) gen_store_fpr64(fp, XREG(B11_8)); tcg_temp_free_i64(fp); } else { - TCGv_i32 fp = tcg_temp_new_i32(); - tcg_gen_qemu_ld32u(fp, REG(B7_4), ctx->memidx); - gen_store_fpr32(fp, FREG(B11_8)); - tcg_temp_free_i32(fp); + tcg_gen_qemu_ld32u(cpu_fregs[FREG(B11_8)], REG(B7_4), ctx->memidx); } return; case 0xf009: /* fmov @Rm+,{F,D,X}Rn - FPSCR: Nothing */ @@ -1029,10 +1017,7 @@ static void _decode_opc(DisasContext * ctx) tcg_temp_free_i64(fp); tcg_gen_addi_i32(REG(B7_4),REG(B7_4), 8); } else { - TCGv_i32 fp = tcg_temp_new_i32(); - tcg_gen_qemu_ld32u(fp, REG(B7_4), ctx->memidx); - gen_store_fpr32(fp, FREG(B11_8)); - tcg_temp_free_i32(fp); + tcg_gen_qemu_ld32u(cpu_fregs[FREG(B11_8)], REG(B7_4), ctx->memidx); tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 4); } return; @@ -1050,13 +1035,9 @@ static void _decode_opc(DisasContext * ctx) tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 8); } else { TCGv addr; - TCGv_i32 fp; addr = tcg_temp_new_i32(); tcg_gen_subi_i32(addr, REG(B11_8), 4); - fp = tcg_temp_new_i32(); - gen_load_fpr32(fp, FREG(B7_4)); - tcg_gen_qemu_st32(fp, addr, ctx->memidx); - tcg_temp_free_i32(fp); + tcg_gen_qemu_st32(cpu_fregs[FREG(B7_4)], addr, ctx->memidx); tcg_temp_free(addr); tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 4); } @@ -1071,10 +1052,7 @@ static void _decode_opc(DisasContext * ctx) gen_store_fpr64(fp, XREG(B11_8)); tcg_temp_free_i64(fp); } else { - TCGv_i32 fp = tcg_temp_new_i32(); - tcg_gen_qemu_ld32u(fp, addr, ctx->memidx); - gen_store_fpr32(fp, FREG(B11_8)); - tcg_temp_free_i32(fp); + tcg_gen_qemu_ld32u(cpu_fregs[FREG(B11_8)], addr, ctx->memidx); } tcg_temp_free(addr); } @@ -1089,10 +1067,7 @@ static void _decode_opc(DisasContext * ctx) tcg_gen_qemu_st64(fp, addr, ctx->memidx); tcg_temp_free_i64(fp); } else { - TCGv_i32 fp = tcg_temp_new_i32(); - gen_load_fpr32(fp, FREG(B7_4)); - tcg_gen_qemu_st32(fp, addr, ctx->memidx); - tcg_temp_free_i32(fp); + tcg_gen_qemu_st32(cpu_fregs[FREG(B7_4)], addr, ctx->memidx); } tcg_temp_free(addr); } @@ -1137,36 +1112,26 @@ static void _decode_opc(DisasContext * ctx) tcg_temp_free_i64(fp0); tcg_temp_free_i64(fp1); } else { - TCGv_i32 fp0, fp1; - - fp0 = tcg_temp_new_i32(); - fp1 = tcg_temp_new_i32(); - gen_load_fpr32(fp0, FREG(B11_8)); - gen_load_fpr32(fp1, FREG(B7_4)); - switch (ctx->opcode & 0xf00f) { case 0xf000: /* fadd Rm,Rn */ - gen_helper_fadd_FT(fp0, fp0, fp1); + gen_helper_fadd_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); break; case 0xf001: /* fsub Rm,Rn */ - gen_helper_fsub_FT(fp0, fp0, fp1); + gen_helper_fsub_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); break; case 0xf002: /* fmul Rm,Rn */ - gen_helper_fmul_FT(fp0, fp0, fp1); + gen_helper_fmul_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); break; case 0xf003: /* fdiv Rm,Rn */ - gen_helper_fdiv_FT(fp0, fp0, fp1); + gen_helper_fdiv_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); break; case 0xf004: /* fcmp/eq Rm,Rn */ - gen_helper_fcmp_eq_FT(fp0, fp1); + gen_helper_fcmp_eq_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); return; case 0xf005: /* fcmp/gt Rm,Rn */ - gen_helper_fcmp_gt_FT(fp0, fp1); + gen_helper_fcmp_gt_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]); return; } - gen_store_fpr32(fp0, FREG(B11_8)); - tcg_temp_free_i32(fp0); - tcg_temp_free_i32(fp1); } } return; @@ -1633,18 +1598,12 @@ static void _decode_opc(DisasContext * ctx) return; case 0xf00d: /* fsts FPUL,FRn - FPSCR: Nothing */ { - TCGv fp = tcg_temp_new(); - tcg_gen_mov_i32(fp, cpu_fpul); - gen_store_fpr32(fp, FREG(B11_8)); - tcg_temp_free(fp); + tcg_gen_mov_i32(cpu_fregs[FREG(B11_8)], cpu_fpul); } return; case 0xf01d: /* flds FRm,FPUL - FPSCR: Nothing */ { - TCGv fp = tcg_temp_new(); - gen_load_fpr32(fp, FREG(B11_8)); - tcg_gen_mov_i32(cpu_fpul, fp); - tcg_temp_free(fp); + tcg_gen_mov_i32(cpu_fpul, cpu_fregs[FREG(B11_8)]); } return; case 0xf02d: /* float FPUL,FRn/DRn - FPSCR: R[PR,Enable.I]/W[Cause,Flag] */ @@ -1658,10 +1617,7 @@ static void _decode_opc(DisasContext * ctx) tcg_temp_free_i64(fp); } else { - TCGv_i32 fp = tcg_temp_new_i32(); - gen_helper_float_FT(fp, cpu_fpul); - gen_store_fpr32(fp, FREG(B11_8)); - tcg_temp_free_i32(fp); + gen_helper_float_FT(cpu_fregs[FREG(B11_8)], cpu_fpul); } return; case 0xf03d: /* ftrc FRm/DRm,FPUL - FPSCR: R[PR,Enable.V]/W[Cause,Flag] */ @@ -1675,19 +1631,12 @@ static void _decode_opc(DisasContext * ctx) tcg_temp_free_i64(fp); } else { - TCGv_i32 fp = tcg_temp_new_i32(); - gen_load_fpr32(fp, FREG(B11_8)); - gen_helper_ftrc_FT(cpu_fpul, fp); - tcg_temp_free_i32(fp); + gen_helper_ftrc_FT(cpu_fpul, cpu_fregs[FREG(B11_8)]); } return; case 0xf04d: /* fneg FRn/DRn - FPSCR: Nothing */ { - TCGv_i32 fp = tcg_temp_new_i32(); - gen_load_fpr32(fp, FREG(B11_8)); - gen_helper_fneg_T(fp, fp); - gen_store_fpr32(fp, FREG(B11_8)); - tcg_temp_free_i32(fp); + gen_helper_fneg_T(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)]); } return; case 0xf05d: /* fabs FRn/DRn */ @@ -1700,11 +1649,7 @@ static void _decode_opc(DisasContext * ctx) gen_store_fpr64(fp, DREG(B11_8)); tcg_temp_free_i64(fp); } else { - TCGv_i32 fp = tcg_temp_new_i32(); - gen_load_fpr32(fp, FREG(B11_8)); - gen_helper_fabs_FT(fp, fp); - gen_store_fpr32(fp, FREG(B11_8)); - tcg_temp_free_i32(fp); + gen_helper_fabs_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)]); } return; case 0xf06d: /* fsqrt FRn */ @@ -1717,28 +1662,20 @@ static void _decode_opc(DisasContext * ctx) gen_store_fpr64(fp, DREG(B11_8)); tcg_temp_free_i64(fp); } else { - TCGv_i32 fp = tcg_temp_new_i32(); - gen_load_fpr32(fp, FREG(B11_8)); - gen_helper_fsqrt_FT(fp, fp); - gen_store_fpr32(fp, FREG(B11_8)); - tcg_temp_free_i32(fp); + gen_helper_fsqrt_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)]); } return; case 0xf07d: /* fsrra FRn */ break; case 0xf08d: /* fldi0 FRn - FPSCR: R[PR] */ if (!(ctx->fpscr & FPSCR_PR)) { - TCGv_i32 val = tcg_const_i32(0); - gen_load_fpr32(val, FREG(B11_8)); - tcg_temp_free_i32(val); + tcg_gen_movi_i32(cpu_fregs[FREG(B11_8)], 0); return; } break; case 0xf09d: /* fldi1 FRn - FPSCR: R[PR] */ if (!(ctx->fpscr & FPSCR_PR)) { - TCGv_i32 val = tcg_const_i32(0x3f800000); - gen_load_fpr32(val, FREG(B11_8)); - tcg_temp_free_i32(val); + tcg_gen_movi_i32(cpu_fregs[FREG(B11_8)], 0x3f800000); return; } break; |