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[Qemu-devel] [PATCH for-2.5 11/30] m68k: improve clr/moveq
From: |
Laurent Vivier |
Subject: |
[Qemu-devel] [PATCH for-2.5 11/30] m68k: improve clr/moveq |
Date: |
Sun, 9 Aug 2015 22:13:30 +0200 |
Generate the TCG constant and use it twice, instead
of generating the TCG constant twice to use it twice.
Signed-off-by: Laurent Vivier <address@hidden>
---
target-m68k/translate.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/target-m68k/translate.c b/target-m68k/translate.c
index 359c761..8a3d315 100644
--- a/target-m68k/translate.c
+++ b/target-m68k/translate.c
@@ -1431,10 +1431,13 @@ DISAS_INSN(lea)
DISAS_INSN(clr)
{
int opsize;
+ TCGv zero;
+
+ zero = tcg_const_i32(0);
opsize = insn_opsize(insn, 6);
- DEST_EA(env, insn, opsize, tcg_const_i32(0), NULL);
- gen_logic_cc(s, tcg_const_i32(0), opsize);
+ DEST_EA(env, insn, opsize, zero, NULL);
+ gen_logic_cc(s, zero, opsize);
}
static TCGv gen_get_ccr(DisasContext *s)
@@ -1776,11 +1779,11 @@ DISAS_INSN(branch)
DISAS_INSN(moveq)
{
- uint32_t val;
+ TCGv val;
- val = (int8_t)insn;
- tcg_gen_movi_i32(DREG(insn, 9), val);
- gen_logic_cc(s, tcg_const_i32(val), OS_LONG);
+ val = tcg_const_i32((int8_t)insn);
+ tcg_gen_mov_i32(DREG(insn, 9), val);
+ gen_logic_cc(s, val, OS_LONG);
}
DISAS_INSN(mvzs)
--
2.4.3
- [Qemu-devel] [PATCH for-2.5 00/30] 680x0 instructions emulation, Laurent Vivier, 2015/08/09
- [Qemu-devel] [PATCH for-2.5 04/30] m68k: set disassembler mode to 680x0 or coldfire, Laurent Vivier, 2015/08/09
- [Qemu-devel] [PATCH for-2.5 03/30] m68k: introduce read_imXX() functions, Laurent Vivier, 2015/08/09
- [Qemu-devel] [PATCH for-2.5 09/30] m68k: add X flag helpers, Laurent Vivier, 2015/08/09
- [Qemu-devel] [PATCH for-2.5 10/30] m68k: tst bugfix, Laurent Vivier, 2015/08/09
- [Qemu-devel] [PATCH for-2.5 11/30] m68k: improve clr/moveq,
Laurent Vivier <=
- [Qemu-devel] [PATCH for-2.5 06/30] m68k: REG() macro cleanup, Laurent Vivier, 2015/08/09
- [Qemu-devel] [PATCH for-2.5 02/30] m68k: manage scaled index, Laurent Vivier, 2015/08/09
- [Qemu-devel] [PATCH for-2.5 05/30] m68k: define operand sizes, Laurent Vivier, 2015/08/09
- [Qemu-devel] [PATCH for-2.5 12/30] m68k: Manage divw overflow, Laurent Vivier, 2015/08/09