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-rw-r--r--target-sh4/translate.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/target-sh4/translate.c b/target-sh4/translate.c
index 91821a18ae..ced761f2a5 100644
--- a/target-sh4/translate.c
+++ b/target-sh4/translate.c
@@ -683,7 +683,9 @@ void _decode_opc(DisasContext * ctx)
return;
case 0x6008: /* swap.b Rm,Rn */
{
- TCGv high, low;
+ TCGv highw, high, low;
+ highw = tcg_temp_new(TCG_TYPE_I32);
+ tcg_gen_andi_i32(highw, REG(B7_4), 0xffff0000);
high = tcg_temp_new(TCG_TYPE_I32);
tcg_gen_ext8u_i32(high, REG(B7_4));
tcg_gen_shli_i32(high, high, 8);
@@ -691,6 +693,7 @@ void _decode_opc(DisasContext * ctx)
tcg_gen_shri_i32(low, REG(B7_4), 8);
tcg_gen_ext8u_i32(low, low);
tcg_gen_or_i32(REG(B11_8), high, low);
+ tcg_gen_or_i32(REG(B11_8), REG(B11_8), highw);
tcg_temp_free(low);
tcg_temp_free(high);
}