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-rw-r--r--target-sh4/op.c7
-rw-r--r--target-sh4/translate.c7
2 files changed, 6 insertions, 8 deletions
diff --git a/target-sh4/op.c b/target-sh4/op.c
index 37ac930..54a5c7b 100644
--- a/target-sh4/op.c
+++ b/target-sh4/op.c
@@ -592,13 +592,6 @@ void OPPROTO op_shlr16_Rn(void)
RETURN();
}
-void OPPROTO op_tasb_rN(void)
-{
- cond_t((env->gregs[PARAM1] & 0xff) == 0);
- *(int8_t *) &env->gregs[PARAM1] |= 0x80;
- RETURN();
-}
-
void OPPROTO op_movl_T0_rN(void)
{
env->gregs[PARAM1] = T0;
diff --git a/target-sh4/translate.c b/target-sh4/translate.c
index 2403515..9ea6b3e 100644
--- a/target-sh4/translate.c
+++ b/target-sh4/translate.c
@@ -1100,7 +1100,12 @@ void _decode_opc(DisasContext * ctx)
gen_op_shlr16_Rn(REG(B11_8));
return;
case 0x401b: /* tas.b @Rn */
- gen_op_tasb_rN(REG(B11_8));
+ gen_op_movl_rN_T0(REG(B11_8));
+ gen_op_movl_T0_T1();
+ gen_op_ldub_T0_T0(ctx);
+ gen_op_cmp_eq_imm_T0(0);
+ gen_op_or_imm_T0(0x80);
+ gen_op_stb_T0_T1(ctx);
return;
case 0xf00d: /* fsts FPUL,FRn - FPSCR: Nothing */
gen_op_movl_fpul_FT0();