From: Aurelien Jarno <aurelien@aurel32.net>
To: qemu-devel@nongnu.org
Cc: Aurelien Jarno <aurelien@aurel32.net>
Subject: [Qemu-devel] [PULL 2/6] target-sh4: use deposit in swap.b instruction
Date: Sun, 13 Sep 2015 23:18:41 +0200 [thread overview]
Message-ID: <1442179125-29608-3-git-send-email-aurelien@aurel32.net> (raw)
In-Reply-To: <1442179125-29608-1-git-send-email-aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
---
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 be0cb32..50043cf 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
next prev parent reply other threads:[~2015-09-13 21:18 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-13 21:18 [Qemu-devel] [PULL 0/6] sh4-next queue Aurelien Jarno
2015-09-13 21:18 ` [Qemu-devel] [PULL 1/6] target-sh4: add flags markups for FP helpers Aurelien Jarno
2015-09-13 21:18 ` Aurelien Jarno [this message]
2015-09-13 21:18 ` [Qemu-devel] [PULL 3/6] target-sh4: improve cmp/str instruction Aurelien Jarno
2015-09-13 21:18 ` [Qemu-devel] [PULL 4/6] target-sh4: improve shld instruction Aurelien Jarno
2015-09-13 21:18 ` [Qemu-devel] [PULL 5/6] target-sh4: improve shad instruction Aurelien Jarno
2015-09-13 21:18 ` [Qemu-devel] [PULL 6/6] sh4: Fix initramfs initialization for endiannes-mismatched targets Aurelien Jarno
2015-09-14 13:05 ` [Qemu-devel] [PULL 0/6] sh4-next queue Peter Maydell
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