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| author | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2009-03-02 17:13:21 +0000 |
|---|---|---|
| committer | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2009-03-02 17:13:21 +0000 |
| commit | 66c7c80657e6b7ca42a7eb7aff28bebfef030b87 (patch) | |
| tree | c8cb3fcfb07c47dd824cff67c2c5384b48c1f9cc /target-sh4/translate.c | |
| parent | c7eb95e1180c524a9ef97e3fdfc8ad5d40b0cebb (diff) | |
| download | qemu-66c7c80657e6b7ca42a7eb7aff28bebfef030b87.zip | |
SH: Implement MOVCO.L and MOVLI.L
* target-sh4/cpu.h (struct CPUSH4State): New field ldst.
* target-sh4/translate.c (cpu_ldst): New.
(sh4_translate_init): Initialize cpu_ldst.
(_decode_opc): Support MOVCO.L and MOVLI.L.
(Vladimir Prus)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6666 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-sh4/translate.c')
| -rw-r--r-- | target-sh4/translate.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/target-sh4/translate.c b/target-sh4/translate.c index a0ee4f1ba3..cc9f886810 100644 --- a/target-sh4/translate.c +++ b/target-sh4/translate.c @@ -72,7 +72,7 @@ static TCGv_ptr cpu_env; 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; +static TCGv cpu_pr, cpu_fpscr, cpu_fpul, cpu_ldst; static TCGv cpu_fregs[32]; /* internal register indexes */ @@ -144,6 +144,8 @@ static void sh4_translate_init(void) cpu_delayed_pc = tcg_global_mem_new_i32(TCG_AREG0, offsetof(CPUState, delayed_pc), "_delayed_pc_"); + cpu_ldst = tcg_global_mem_new_i32(TCG_AREG0, + offsetof(CPUState, ldst), "_ldst_"); for (i = 0; i < 32; i++) cpu_fregs[i] = tcg_global_mem_new_i32(TCG_AREG0, @@ -1559,6 +1561,37 @@ static void _decode_opc(DisasContext * ctx) case 0x0029: /* movt Rn */ tcg_gen_andi_i32(REG(B11_8), cpu_sr, SR_T); return; + case 0x0073: + /* MOVCO.L + LDST -> T + If (T == 1) R0 -> (Rn) + 0 -> LDST + */ + if (ctx->features & SH_FEATURE_SH4A) { + int label = gen_new_label(); + gen_clr_t(); + tcg_gen_or_i32(cpu_sr, cpu_sr, cpu_ldst); + tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_ldst, 0, label); + tcg_gen_qemu_st32(REG(0), REG(B11_8), ctx->memidx); + gen_set_label(label); + tcg_gen_movi_i32(cpu_ldst, 0); + return; + } else + break; + case 0x0063: + /* MOVLI.L @Rm,R0 + 1 -> LDST + (Rm) -> R0 + When interrupt/exception + occurred 0 -> LDST + */ + if (ctx->features & SH_FEATURE_SH4A) { + tcg_gen_movi_i32(cpu_ldst, 0); + tcg_gen_qemu_ld32s(REG(0), REG(B11_8), ctx->memidx); + tcg_gen_movi_i32(cpu_ldst, 1); + return; + } else + break; case 0x0093: /* ocbi @Rn */ { TCGv dummy = tcg_temp_new(); |