summary refs log tree commit diff stats
path: root/target-sh4/translate.c
diff options
context:
space:
mode:
Diffstat (limited to 'target-sh4/translate.c')
-rw-r--r--target-sh4/translate.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/target-sh4/translate.c b/target-sh4/translate.c
index 2403515c0b..9ea6b3ed43 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();