diff options
| -rw-r--r-- | target-m68k/translate.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/target-m68k/translate.c b/target-m68k/translate.c index 0d3111d353..b407623548 100644 --- a/target-m68k/translate.c +++ b/target-m68k/translate.c @@ -2021,6 +2021,33 @@ DISAS_INSN(eor) DEST_EA(env, insn, OS_LONG, dest, &addr); } +static void do_exg(TCGv reg1, TCGv reg2) +{ + TCGv temp = tcg_temp_new(); + tcg_gen_mov_i32(temp, reg1); + tcg_gen_mov_i32(reg1, reg2); + tcg_gen_mov_i32(reg2, temp); + tcg_temp_free(temp); +} + +DISAS_INSN(exg_aa) +{ + /* exchange Dx and Dy */ + do_exg(DREG(insn, 9), DREG(insn, 0)); +} + +DISAS_INSN(exg_dd) +{ + /* exchange Ax and Ay */ + do_exg(AREG(insn, 9), AREG(insn, 0)); +} + +DISAS_INSN(exg_da) +{ + /* exchange Dx and Ay */ + do_exg(DREG(insn, 9), AREG(insn, 0)); +} + DISAS_INSN(and) { TCGv src; @@ -3154,6 +3181,9 @@ void register_m68k_insns (CPUM68KState *env) INSN(cmpa, b0c0, f0c0, M68000); INSN(eor, b180, f1c0, CF_ISA_A); BASE(and, c000, f000); + INSN(exg_dd, c140, f1f8, M68000); + INSN(exg_aa, c148, f1f8, M68000); + INSN(exg_da, c188, f1f8, M68000); BASE(mulw, c0c0, f0c0); BASE(addsub, d000, f000); INSN(addx, d180, f1f8, CF_ISA_A); |