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[Qemu-devel] [PATCH 06/17] m68k: add Scc instruction with memory operand
From: |
Laurent Vivier |
Subject: |
[Qemu-devel] [PATCH 06/17] m68k: add Scc instruction with memory operand. |
Date: |
Sat, 30 May 2009 00:41:50 +0200 |
This patch defines Scc instruction for M68000 feature accessing
destination operand using an effective address (existing Scc instruction
manages only data registers).
Signed-off-by: Andreas Schwab <address@hidden>
Signed-off-by: Laurent Vivier <address@hidden>
---
target-m68k/translate.c | 18 ++++++++++++++++++
1 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/target-m68k/translate.c b/target-m68k/translate.c
index cd46651..d08e1c8 100644
--- a/target-m68k/translate.c
+++ b/target-m68k/translate.c
@@ -906,6 +906,23 @@ static void gen_jmp_tb(DisasContext *s, int n, uint32_t
dest)
s->is_jmp = DISAS_TB_JUMP;
}
+DISAS_INSN(scc_mem)
+{
+ int l1;
+ int cond;
+ TCGv dest;
+
+ l1 = gen_new_label();
+ cond = (insn >> 8) & 0xf;
+ dest = tcg_temp_local_new();
+ tcg_gen_movi_i32(dest, 0);
+ gen_jmpcc(s, cond ^ 1, l1);
+ tcg_gen_movi_i32(dest, 0xff);
+ gen_set_label(l1);
+ DEST_EA(insn, OS_BYTE, dest, NULL);
+ tcg_temp_free(dest);
+}
+
DISAS_INSN(undef_mac)
{
gen_exception(s, s->pc - 2, EXCP_LINEA);
@@ -2975,6 +2992,7 @@ void register_m68k_insns (CPUM68KState *env)
INSN(addsubq, 5000, f080, M68000);
INSN(addsubq, 5080, f0c0, M68000);
INSN(scc, 50c0, f0f8, CF_ISA_A);
+ INSN(scc_mem, 50c0, f0c0, M68000);
INSN(scc, 50c0, f0f8, M68000);
INSN(tpf, 51f8, fff8, CF_ISA_A);
--
1.5.6.5
- [Qemu-devel] [PATCH 00/17] m68k: add partial Motorola 680x0 support, Laurent Vivier, 2009/05/29
- [Qemu-devel] [PATCH 01/17] m68k: Replace gen_im32() by tcg_const_i32(), Laurent Vivier, 2009/05/29
- [Qemu-devel] [PATCH 02/17] m68k: add tcg_gen_debug_insn_start(), Laurent Vivier, 2009/05/29
- [Qemu-devel] [PATCH 03/17] m68k: define m680x0 CPUs and features, Laurent Vivier, 2009/05/29
- [Qemu-devel] [PATCH 04/17] m68k: add missing accessing modes for some instructions., Laurent Vivier, 2009/05/29
- [Qemu-devel] [PATCH 05/17] m68k: add Motorola 680x0 family common instructions., Laurent Vivier, 2009/05/29
- [Qemu-devel] [PATCH 06/17] m68k: add Scc instruction with memory operand.,
Laurent Vivier <=
- [Qemu-devel] [PATCH 07/17] m68k: add DBcc instruction., Laurent Vivier, 2009/05/29
- [Qemu-devel] [PATCH 08/17] m68k: modify movem instruction to manage word, Laurent Vivier, 2009/05/29
- [Qemu-devel] [PATCH 09/17] m68k: add 64bit divide., Laurent Vivier, 2009/05/29
- [Qemu-devel] [PATCH 10/17] m68k: add 32bit and 64bit multiply, Laurent Vivier, 2009/05/29
- [Qemu-devel] [PATCH 11/17] m68k: add word data size for suba/adda, Laurent Vivier, 2009/05/29
- [Qemu-devel] [PATCH 12/17] m68k: add fpu, Laurent Vivier, 2009/05/29
- [Qemu-devel] [PATCH 13/17] m68k: add "byte", "word" and memory shift, Laurent Vivier, 2009/05/29
- [Qemu-devel] [PATCH 14/17] m68k: add "byte", "word" and memory rotate., Laurent Vivier, 2009/05/29
- [Qemu-devel] [PATCH 15/17] m68k: add bitfield_mem, bitfield_reg, Laurent Vivier, 2009/05/29
- [Qemu-devel] [PATCH 16/17] m68k: add variable offset/width to bitfield_reg/bitfield_mem, Laurent Vivier, 2009/05/29