From bc27695926f287af5bda8f266f061db1a03c8bbb Mon Sep 17 00:00:00 2001 From: Laurent Vivier Date: Wed, 28 Feb 2018 07:07:21 -0500 Subject: [PATCH] target-m68k: add addressing modes to neg Backports commit 227de713e0f4224a82c32991b4e4c4973381426b from qemu --- qemu/target-m68k/translate.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/qemu/target-m68k/translate.c b/qemu/target-m68k/translate.c index 1e938825..470bcffa 100644 --- a/qemu/target-m68k/translate.c +++ b/qemu/target-m68k/translate.c @@ -1665,16 +1665,20 @@ DISAS_INSN(move_from_ccr) DISAS_INSN(neg) { TCGContext *tcg_ctx = s->uc->tcg_ctx; - TCGv reg; TCGv src1; + TCGv dest; + TCGv addr; + int opsize; - reg = DREG(insn, 0); - src1 = tcg_temp_new(tcg_ctx); - tcg_gen_mov_i32(tcg_ctx, src1, reg); - tcg_gen_neg_i32(tcg_ctx, reg, src1); - gen_update_cc_add(s, reg, src1, OS_LONG); - tcg_gen_setcondi_i32(tcg_ctx, TCG_COND_NE, tcg_ctx->QREG_CC_X, src1, 0); - set_cc_op(s, CC_OP_SUBL); + opsize = insn_opsize(insn); + SRC_EA(env, src1, opsize, 1, &addr); + dest = tcg_temp_new(tcg_ctx); + tcg_gen_neg_i32(tcg_ctx, dest, src1); + set_cc_op(s, CC_OP_SUBB + opsize); + gen_update_cc_add(s, dest, src1, opsize); + tcg_gen_setcondi_i32(tcg_ctx, TCG_COND_NE, tcg_ctx->QREG_CC_X, dest, 0); + DEST_EA(env, insn, opsize, dest, &addr); + tcg_temp_free(tcg_ctx, dest); } static void gen_set_sr_im(DisasContext *s, uint16_t val, int ccr_only)