Commit b459e3ec authored by Richard Henderson's avatar Richard Henderson Committed by Laurent Vivier
Browse files

target-m68k: Use setcond for scc 



Signed-off-by: default avatarRichard Henderson <rth@twiddle.net>
Signed-off-by: default avatarLaurent Vivier <laurent@vivier.eu>
parent 6a432295

target-m68k/translate.c

+11 −9
Original line number Diff line number Diff line
@@ -865,19 +865,21 @@ static void gen_jmpcc(DisasContext *s, int cond, TCGLabel *l1) 


DISAS_INSN(scc)

{

    TCGLabel *l1;

    DisasCompare c;

    int cond;

    TCGv reg;

    TCGv reg, tmp;



    l1 = gen_new_label();

    cond = (insn >> 8) & 0xf;

    gen_cc_cond(&c, s, cond);



    tmp = tcg_temp_new();

    tcg_gen_setcond_i32(c.tcond, tmp, c.v1, c.v2);

    free_cond(&c);



    reg = DREG(insn, 0);

    tcg_gen_andi_i32(reg, reg, 0xffffff00);

    /* This is safe because we modify the reg directly, with no other values

       live.  */

    gen_jmpcc(s, cond ^ 1, l1);

    tcg_gen_ori_i32(reg, reg, 0xff);

    gen_set_label(l1);

    tcg_gen_neg_i32(tmp, tmp);

    tcg_gen_deposit_i32(reg, reg, tmp, 0, 8);

    tcg_temp_free(tmp);

}



/* Force a TB lookup after an instruction that changes the CPU state.  */