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target-m68k: add cmpm

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Backports commit 817af1c72d227fd5759ef882bef61acee40679b1 from qemu
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Laurent Vivier 2018-03-01 11:28:43 -05:00 committed by Lioncash
parent e6ca471dda
commit e1c7d37556
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1 changed files with 17 additions and 0 deletions
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17
qemu/target-m68k/translate.c
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@ -2291,6 +2291,22 @@ DISAS_INSN(cmpa)
gen_update_cc_cmp(s, reg, src, OS_LONG); gen_update_cc_cmp(s, reg, src, OS_LONG);
} }
DISAS_INSN(cmpm)
{
TCGContext *tcg_ctx = s->uc->tcg_ctx;
int opsize = insn_opsize(insn);
TCGv src, dst;
/* Post-increment load (mode 3) from Ay. */
src = gen_ea_mode(env, s, 3, REG(insn, 0), opsize,
tcg_ctx->NULL_QREG, NULL, EA_LOADS);
/* Post-increment load (mode 3) from Ax. */
dst = gen_ea_mode(env, s, 3, REG(insn, 9), opsize,
tcg_ctx->NULL_QREG, NULL, EA_LOADS);
gen_update_cc_cmp(s, dst, src, opsize);
}
DISAS_INSN(eor) DISAS_INSN(eor)
{ {
TCGContext *tcg_ctx = s->uc->tcg_ctx; TCGContext *tcg_ctx = s->uc->tcg_ctx;
@ -3581,6 +3597,7 @@ void register_m68k_insns (CPUM68KState *env)
INSN(cmpa, b1c0, f1c0, CF_ISA_A); INSN(cmpa, b1c0, f1c0, CF_ISA_A);
INSN(cmp, b000, f100, M68000); INSN(cmp, b000, f100, M68000);
INSN(eor, b100, f100, M68000); INSN(eor, b100, f100, M68000);
INSN(cmpm, b108, f138, M68000);
INSN(cmpa, b0c0, f0c0, M68000); INSN(cmpa, b0c0, f0c0, M68000);
INSN(eor, b180, f1c0, CF_ISA_A); INSN(eor, b180, f1c0, CF_ISA_A);
BASE(and, c000, f000); BASE(and, c000, f000);