On 10/26/2016 09:35 AM, Laurent Vivier wrote:
+ INSN(undef, c140, f1f8, CF_ISA_A);
+ INSN(exg, c140, f1f8, M68000);
+ INSN(undef, c148, f1f8, CF_ISA_A);
+ INSN(exg, c148, f1f8, M68000);
+ INSN(undef, c188, f1f8, CF_ISA_A);
+ INSN(exg, c188, f1f8, M68000);
Given that we started with
+ BASE(undef, 0000, 0000);
why do we need to re-add these undef's?
Otherwise, why not use these, and a helper, to avoid having to re-decode.
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_dd)
{
do_exg(DREG(insn, 9), DREG(insn, 0));
}
DISAS_INSN(exg_aa)
{
do_exg(AREG(insn, 9), AREG(insn, 0));
}
DISAS_INSN(exg_da)
{
do_exg(DREG(insn, 9), AREG(insn, 0));
}
r~
