From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: Laurent Vivier <laurent@vivier.eu>, Richard Henderson <rth@twiddle.net>
Cc: qemu-devel@nongnu.org, "Philippe Mathieu-Daudé" <f4bug@amsat.org>
Subject: [Qemu-devel] [PATCH 2/6] target/m68k: Optimize the partset instruction using deposit_i32()
Date: Sun, 10 Mar 2019 01:34:24 +0100 [thread overview]
Message-ID: <20190310003428.11723-3-f4bug@amsat.org> (raw)
In-Reply-To: <20190310003428.11723-1-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
target/m68k/translate.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/target/m68k/translate.c b/target/m68k/translate.c
index ab801b6ceb..55766fd7ef 100644
--- a/target/m68k/translate.c
+++ b/target/m68k/translate.c
@@ -720,17 +720,15 @@ static void gen_partset_reg(int opsize, TCGv reg, TCGv val)
TCGv tmp;
switch (opsize) {
case OS_BYTE:
- tcg_gen_andi_i32(reg, reg, 0xffffff00);
tmp = tcg_temp_new();
tcg_gen_ext8u_i32(tmp, val);
- tcg_gen_or_i32(reg, reg, tmp);
+ tcg_gen_deposit_i32(reg, tmp, reg, 8, 24);
tcg_temp_free(tmp);
break;
case OS_WORD:
- tcg_gen_andi_i32(reg, reg, 0xffff0000);
tmp = tcg_temp_new();
tcg_gen_ext16u_i32(tmp, val);
- tcg_gen_or_i32(reg, reg, tmp);
+ tcg_gen_deposit_i32(reg, tmp, reg, 16, 16);
tcg_temp_free(tmp);
break;
case OS_LONG:
--
2.19.1
next prev parent reply other threads:[~2019-03-10 0:34 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-10 0:34 [Qemu-devel] [PATCH 0/6] target/m68k: Optimize few instructions using deposit/extraxt_i32() Philippe Mathieu-Daudé
2019-03-10 0:34 ` [Qemu-devel] [PATCH 1/6] target/m68k: Reduce the l1 TCGLabel scope Philippe Mathieu-Daudé
2019-03-11 14:46 ` Richard Henderson
2019-03-10 0:34 ` Philippe Mathieu-Daudé [this message]
2019-03-11 14:46 ` [Qemu-devel] [PATCH 2/6] target/m68k: Optimize the partset instruction using deposit_i32() Richard Henderson
2019-03-10 0:34 ` [Qemu-devel] [PATCH 3/6] target/m68k: Fix a tcg_temp leak Philippe Mathieu-Daudé
2019-03-11 14:48 ` Richard Henderson
2019-03-10 0:34 ` [Qemu-devel] [PATCH 4/6] target/m68k: Optimize get_sr() using deposit_i32() Philippe Mathieu-Daudé
2019-03-11 14:52 ` Richard Henderson
2019-03-10 0:34 ` [Qemu-devel] [PATCH 5/6] target/m68k: Optimize rotate_x() using extract_i32() Philippe Mathieu-Daudé
2019-03-11 14:59 ` Richard Henderson
2019-03-10 0:34 ` [Qemu-devel] [PATCH 6/6] target/m68k: Reduce the scope of the 'zero' tcg_temp Philippe Mathieu-Daudé
2019-03-11 14:58 ` Richard Henderson
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