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[Qemu-devel] [PATCH for-2.5 19/30] m68k: add cmpm
From: |
Laurent Vivier |
Subject: |
[Qemu-devel] [PATCH for-2.5 19/30] m68k: add cmpm |
Date: |
Sun, 9 Aug 2015 22:13:38 +0200 |
Signed-off-by: Laurent Vivier <address@hidden>
---
target-m68k/translate.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/target-m68k/translate.c b/target-m68k/translate.c
index ae57792..adf4521 100644
--- a/target-m68k/translate.c
+++ b/target-m68k/translate.c
@@ -2002,6 +2002,24 @@ DISAS_INSN(eor)
opsize = insn_opsize(insn, 6);
+ if (((insn >> 3) & 7) == 1) {
+ /* cmpm */
+ reg = AREG(insn, 0);
+ src = gen_load(s, opsize, reg, 1);
+ tcg_gen_addi_i32(reg, reg, opsize_bytes(opsize));
+
+ reg = AREG(insn, 9);
+ dest = gen_load(s, opsize, reg, 1);
+ tcg_gen_addi_i32(reg, reg, opsize_bytes(opsize));
+
+ reg = tcg_temp_new();
+ tcg_gen_sub_i32(reg, dest, src);
+ gen_update_cc_add(reg, src);
+ SET_CC_OP(opsize, SUB);
+
+ return;
+ }
+
SRC_EA(env, src, opsize, -1, &addr);
reg = DREG(insn, 9);
dest = tcg_temp_new();
--
2.4.3
- [Qemu-devel] [PATCH for-2.5 16/30] m68k: Add all access modes and data sizes to some 680x0 instructions, (continued)
[Qemu-devel] [PATCH for-2.5 21/30] m68k: add bkpt, Laurent Vivier, 2015/08/09
[Qemu-devel] [PATCH for-2.5 19/30] m68k: add cmpm,
Laurent Vivier <=
[Qemu-devel] [PATCH for-2.5 25/30] m68k: add abcd, sbcd, nbcd instructions, Laurent Vivier, 2015/08/09
[Qemu-devel] [PATCH for-2.5 24/30] m68k: add DBcc and Scc (memory operand), Laurent Vivier, 2015/08/09
[Qemu-devel] [PATCH for-2.5 22/30] m68k: add cas instruction, Laurent Vivier, 2015/08/09
[Qemu-devel] [PATCH for-2.5 23/30] m68k: add linkl, Laurent Vivier, 2015/08/09
[Qemu-devel] [PATCH for-2.5 27/30] m68k: add addx/subx/negx, Laurent Vivier, 2015/08/09