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[Qemu-devel] [PATCH 15/16] target-m68k: cmp manages word and bytes opera
From: |
Laurent Vivier |
Subject: |
[Qemu-devel] [PATCH 15/16] target-m68k: cmp manages word and bytes operands |
Date: |
Wed, 26 Oct 2016 18:36:05 +0200 |
Signed-off-by: Laurent Vivier <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
---
target-m68k/translate.c | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/target-m68k/translate.c b/target-m68k/translate.c
index 3659b9f..1685abb 100644
--- a/target-m68k/translate.c
+++ b/target-m68k/translate.c
@@ -582,6 +582,13 @@ static void gen_logic_cc(DisasContext *s, TCGv val, int
opsize)
set_cc_op(s, CC_OP_LOGIC);
}
+static void gen_update_cc_cmp(DisasContext *s, TCGv dest, TCGv src, int opsize)
+{
+ tcg_gen_mov_i32(QREG_CC_N, dest);
+ tcg_gen_mov_i32(QREG_CC_V, src);
+ set_cc_op(s, CC_OP_CMPB + opsize);
+}
+
static void gen_update_cc_add(TCGv dest, TCGv src, int opsize)
{
gen_ext(QREG_CC_N, dest, opsize, 1);
@@ -2132,10 +2139,9 @@ DISAS_INSN(cmp)
int opsize;
opsize = insn_opsize(insn);
- SRC_EA(env, src, opsize, -1, NULL);
- reg = DREG(insn, 9);
- gen_update_cc_add(reg, src, OS_LONG);
- set_cc_op(s, CC_OP_CMPL);
+ SRC_EA(env, src, opsize, 1, NULL);
+ reg = gen_extend(DREG(insn, 9), opsize, 1);
+ gen_update_cc_cmp(s, reg, src, opsize);
}
DISAS_INSN(cmpa)
@@ -2151,8 +2157,7 @@ DISAS_INSN(cmpa)
}
SRC_EA(env, src, opsize, 1, NULL);
reg = AREG(insn, 9);
- gen_update_cc_add(reg, src, OS_LONG);
- set_cc_op(s, CC_OP_CMPL);
+ gen_update_cc_cmp(s, reg, src, opsize);
}
DISAS_INSN(eor)
--
2.7.4
- [Qemu-devel] [PATCH 11/16] target-m68k: some bit ops cleanup, (continued)
- [Qemu-devel] [PATCH 11/16] target-m68k: some bit ops cleanup, Laurent Vivier, 2016/10/26
- [Qemu-devel] [PATCH 07/16] target-m68k: eor can manage word and byte operands, Laurent Vivier, 2016/10/26
- [Qemu-devel] [PATCH 12/16] target-m68k: introduce byte and word cc_ops, Laurent Vivier, 2016/10/26
- [Qemu-devel] [PATCH 01/16] target-m68k: add bkpt instruction, Laurent Vivier, 2016/10/26
- [Qemu-devel] [PATCH 03/16] target-m68k: add exg ops, Laurent Vivier, 2016/10/26
- [Qemu-devel] [PATCH 05/16] target-m68k: Inline addx, subx, negx, Laurent Vivier, 2016/10/26
- [Qemu-devel] [PATCH 16/16] target-m68k: immediate ops manage word and byte operands, Laurent Vivier, 2016/10/26
- [Qemu-devel] [PATCH 15/16] target-m68k: cmp manages word and bytes operands,
Laurent Vivier <=