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[Qemu-devel] [PATCH for-2.5 2/5] target-sh4: use deposit in swap.b instr
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH for-2.5 2/5] target-sh4: use deposit in swap.b instruction |
Date: |
Fri, 24 Jul 2015 13:14:28 +0200 |
Signed-off-by: Aurelien Jarno <address@hidden>
---
target-sh4/translate.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/target-sh4/translate.c b/target-sh4/translate.c
index 3b4a1b5..a6f3f59 100644
--- a/target-sh4/translate.c
+++ b/target-sh4/translate.c
@@ -612,15 +612,11 @@ static void _decode_opc(DisasContext * ctx)
return;
case 0x6008: /* swap.b Rm,Rn */
{
- TCGv high, low;
- high = tcg_temp_new();
- tcg_gen_andi_i32(high, REG(B7_4), 0xffff0000);
- low = tcg_temp_new();
+ TCGv low = tcg_temp_new();;
tcg_gen_ext16u_i32(low, REG(B7_4));
tcg_gen_bswap16_i32(low, low);
- tcg_gen_or_i32(REG(B11_8), high, low);
+ tcg_gen_deposit_i32(REG(B11_8), REG(B7_4), low, 0, 16);
tcg_temp_free(low);
- tcg_temp_free(high);
}
return;
case 0x6009: /* swap.w Rm,Rn */
--
2.1.4
- [Qemu-devel] [PATCH for-2.5 0/5] target-sh4: TCG improvement, Aurelien Jarno, 2015/07/24
- [Qemu-devel] [PATCH for-2.5 4/5] target-sh4: improve shld instruction, Aurelien Jarno, 2015/07/24
- [Qemu-devel] [PATCH for-2.5 2/5] target-sh4: use deposit in swap.b instruction,
Aurelien Jarno <=
- [Qemu-devel] [PATCH for-2.5 3/5] target-sh4: improve cmp/str instruction, Aurelien Jarno, 2015/07/24
- [Qemu-devel] [PATCH 5/5] target-sh4: improve shad instruction, Aurelien Jarno, 2015/07/24
- [Qemu-devel] [PATCH for-2.5 1/5] target-sh4: add flags markups for FP helpers, Aurelien Jarno, 2015/07/24
- Re: [Qemu-devel] [PATCH for-2.5 0/5] target-sh4: TCG improvement, Richard Henderson, 2015/07/24