diff mbox

[47/52] target-m68k: add addressing modes to neg

Message ID 1462396869-22424-8-git-send-email-laurent@vivier.eu (mailing list archive)
State New, archived
Headers show

Commit Message

Laurent Vivier May 4, 2016, 9:21 p.m. UTC 
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 target-m68k/translate.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

Comments

Richard Henderson May 6, 2016, 9:54 p.m. UTC | #1 
On 05/04/2016 11:21 AM, Laurent Vivier wrote:
> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
> ---
>  target-m68k/translate.c | 20 ++++++++++++--------
>  1 file changed, 12 insertions(+), 8 deletions(-)

Reviewed-by: Richard Henderson <rth@twiddle.net>


r~
diff mbox

Patch

diff --git a/target-m68k/translate.c b/target-m68k/translate.c
index 2b6ba15..bd7394f 100644
--- a/target-m68k/translate.c
+++ b/target-m68k/translate.c
@@ -2194,16 +2194,20 @@  DISAS_INSN(move_from_ccr)
 
 DISAS_INSN(neg)
 {
-    TCGv reg;
     TCGv src1;
+    TCGv dest;
+    TCGv addr;
+    int opsize;
 
-    reg = DREG(insn, 0);
-    src1 = tcg_temp_new();
-    tcg_gen_mov_i32(src1, reg);
-    tcg_gen_neg_i32(reg, src1);
-    gen_update_cc_add(reg, src1);
-    tcg_gen_setcondi_i32(TCG_COND_NE, QREG_CC_X, src1, 0);
-    set_cc_op(s, CC_OP_SUB);
+    opsize = insn_opsize(insn);
+    SRC_EA(env, src1, opsize, 1, &addr);
+    dest = tcg_temp_new();
+    tcg_gen_neg_i32(dest, src1);
+    set_cc_op(s, CC_OP_SUBB + opsize);
+    gen_update_cc_add(dest, src1, opsize);
+    tcg_gen_setcondi_i32(TCG_COND_NE, QREG_CC_X, dest, 0);
+    DEST_EA(env, insn, opsize, dest, &addr);
+    tcg_temp_free(dest);
 }
 
 static void gen_set_sr_im(DisasContext *s, uint16_t val, int ccr_only)