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[Qemu-devel] [PATCH 38/52] target-m68k: add linkl
From: |
Laurent Vivier |
Subject: |
[Qemu-devel] [PATCH 38/52] target-m68k: add linkl |
Date: |
Wed, 4 May 2016 23:08:41 +0200 |
Signed-off-by: Laurent Vivier <address@hidden>
---
target-m68k/translate.c | 26 +++++++++++++++++++++-----
1 file changed, 21 insertions(+), 5 deletions(-)
diff --git a/target-m68k/translate.c b/target-m68k/translate.c
index 80033fc..9a38235 100644
--- a/target-m68k/translate.c
+++ b/target-m68k/translate.c
@@ -2351,21 +2351,36 @@ DISAS_INSN(mull)
}
}
-DISAS_INSN(link)
+static void gen_link(DisasContext *s, uint16_t insn, int32_t offset)
{
- int16_t offset;
TCGv reg;
TCGv tmp;
- offset = cpu_ldsw_code(env, s->pc);
- s->pc += 2;
reg = AREG(insn, 0);
tmp = tcg_temp_new();
tcg_gen_subi_i32(tmp, QREG_SP, 4);
gen_store(s, OS_LONG, tmp, reg);
- if ((insn & 7) != 7)
+ if ((insn & 7) != 7) {
tcg_gen_mov_i32(reg, tmp);
+ }
tcg_gen_addi_i32(QREG_SP, tmp, offset);
+ tcg_temp_free(tmp);
+}
+
+DISAS_INSN(link)
+{
+ int16_t offset;
+
+ offset = read_im16(env, s);
+ gen_link(s, insn, offset);
+}
+
+DISAS_INSN(linkl)
+{
+ int32_t offset;
+
+ offset = read_im32(env, s);
+ gen_link(s, insn, offset);
}
DISAS_INSN(unlk)
@@ -4661,6 +4676,7 @@ void register_m68k_insns (CPUM68KState *env)
INSN(undef, 46c0, ffc0, M68000);
INSN(move_to_sr, 46c0, ffc0, CF_ISA_A);
INSN(nbcd, 4800, ffc0, M68000);
+ INSN(linkl, 4808, fff8, M68000);
BASE(pea, 4840, ffc0);
BASE(swap, 4840, fff8);
INSN(bkpt, 4848, fff8, M68000);
--
2.5.5
- Re: [Qemu-devel] [PATCH 32/52] target-m68k: bitfield ops, (continued)
- [Qemu-devel] [PATCH 33/52] target-m68k: inline divu/divs, Laurent Vivier, 2016/05/04
- [Qemu-devel] [PATCH 34/52] target-m68k: add 64bit mull, Laurent Vivier, 2016/05/04
- [Qemu-devel] [PATCH 35/52] target-m68k: inline rotate ops, Laurent Vivier, 2016/05/04
- [Qemu-devel] [PATCH 36/52] target-m68k: inline shift ops, Laurent Vivier, 2016/05/04
- [Qemu-devel] [PATCH 37/52] target-m68k: add cas/cas2 ops, Laurent Vivier, 2016/05/04
- [Qemu-devel] [PATCH 38/52] target-m68k: add linkl,
Laurent Vivier <=
- [Qemu-devel] [PATCH 39/52] target-m68k: movem, Laurent Vivier, 2016/05/04
- Re: [Qemu-devel] [PATCH 33/52] target-m68k: inline divu/divs, Richard Henderson, 2016/05/06
- [Qemu-devel] [PATCH 40/52] target-m68k: add exg ops, Laurent Vivier, 2016/05/04