Re: [Qemu-devel] [PATCH 38/52] target-m68k: add linkl

[Richard Henderson]

On 05/04/2016 11:08 AM, Laurent Vivier wrote:

Signed-off-by: Laurent Vivier 
---
 target-m68k/translate.c | 26 +-
 1 file changed, 21 insertions(+), 5 deletions(-)


Reviewed-by: Richard Henderson 


r~

[Qemu-devel] [PATCH 38/52] target-m68k: add linkl

[Laurent Vivier]

Signed-off-by: Laurent Vivier 
---
 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