From d54a299b83a07642c85a22bfe19b69ca4def9ec4 Mon Sep 17 00:00:00 2001 From: Leon Alrae Date: Wed, 9 Sep 2015 12:44:25 +0100 Subject: [PATCH] target-mips: correct MTC0 instruction on MIPS64 MTC0 on a 64-bit processor should move entire 64-bit GPR content to CP0 register. Signed-off-by: Leon Alrae Reviewed-by: Aurelien Jarno --- target-mips/translate.c | 18 +++++++----------- 1 files changed, 7 insertions(+), 11 deletions(-) diff --git a/target-mips/translate.c b/target-mips/translate.c index 0883782..a59b670 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -4765,12 +4765,6 @@ static inline void gen_mtc0_store32 (TCGv arg, target_ulong off) tcg_temp_free_i32(t0); } -static inline void gen_mtc0_store64 (TCGv arg, target_ulong off) -{ - tcg_gen_ext32s_tl(arg, arg); - tcg_gen_st_tl(arg, cpu_env, off); -} - static void gen_mfhc0(DisasContext *ctx, TCGv arg, int reg, int sel) { const char *rn = "invalid"; @@ -5629,12 +5623,14 @@ static void gen_mtc0(DisasContext *ctx, TCGv arg, int reg, int sel) break; case 5: CP0_CHECK(ctx->insn_flags & ASE_MT); - gen_mtc0_store64(arg, offsetof(CPUMIPSState, CP0_VPESchedule)); + tcg_gen_st_tl(arg, cpu_env, + offsetof(CPUMIPSState, CP0_VPESchedule)); rn = "VPESchedule"; break; case 6: CP0_CHECK(ctx->insn_flags & ASE_MT); - gen_mtc0_store64(arg, offsetof(CPUMIPSState, CP0_VPEScheFBack)); + tcg_gen_st_tl(arg, cpu_env, + offsetof(CPUMIPSState, CP0_VPEScheFBack)); rn = "VPEScheFBack"; break; case 7: @@ -5884,7 +5880,7 @@ static void gen_mtc0(DisasContext *ctx, TCGv arg, int reg, int sel) case 14: switch (sel) { case 0: - gen_mtc0_store64(arg, offsetof(CPUMIPSState, CP0_EPC)); + tcg_gen_st_tl(arg, cpu_env, offsetof(CPUMIPSState, CP0_EPC)); rn = "EPC"; break; default: @@ -6057,7 +6053,7 @@ static void gen_mtc0(DisasContext *ctx, TCGv arg, int reg, int sel) switch (sel) { case 0: /* EJTAG support */ - gen_mtc0_store64(arg, offsetof(CPUMIPSState, CP0_DEPC)); + tcg_gen_st_tl(arg, cpu_env, offsetof(CPUMIPSState, CP0_DEPC)); rn = "DEPC"; break; default: @@ -6160,7 +6156,7 @@ static void gen_mtc0(DisasContext *ctx, TCGv arg, int reg, int sel) case 30: switch (sel) { case 0: - gen_mtc0_store64(arg, offsetof(CPUMIPSState, CP0_ErrorEPC)); + tcg_gen_st_tl(arg, cpu_env, offsetof(CPUMIPSState, CP0_ErrorEPC)); rn = "ErrorEPC"; break; default: -- 1.7.0.4