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target-s390: Implement STORE ON CONDITION 

Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2012-09-01 09:45:20 -07:00
parent 632086da28
commit b92fa33486
2 changed files with 32 additions and 0 deletions
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3
target-s390x/insn-data.def
View File

@ -601,6 +601,9 @@
C(0xe370, STHY, RXY_a, LD, r1_o, a2, 0, 0, st16, 0)
/* STORE HALFWORD RELATIVE LONG */
C(0xc407, STHRL, RIL_b, GIE, r1_o, ri2, 0, 0, st16, 0)
/* STORE ON CONDITION */
D(0xebf3, STOC, RSY_b, LOC, 0, 0, 0, 0, soc, 0, 0)
D(0xebe3, STOCG, RSY_b, LOC, 0, 0, 0, 0, soc, 0, 1)
/* STORE REVERSED */
C(0xe33f, STRVH, RXY_a, Z, la2, r1_16u, new, m1_16, rev16, 0)
C(0xe33e, STRV, RXY_a, Z, la2, r1_32u, new, m1_32, rev32, 0)

29
target-s390x/translate.c
View File

@ -2747,6 +2747,35 @@ static ExitStatus op_sigp(DisasContext *s, DisasOps *o)
}
#endif
static ExitStatus op_soc(DisasContext *s, DisasOps *o)
{
DisasCompare c;
TCGv_i64 a;
int lab, r1;
disas_jcc(s, &c, get_field(s->fields, m3));
lab = gen_new_label();
if (c.is_64) {
tcg_gen_brcond_i64(c.cond, c.u.s64.a, c.u.s64.b, lab);
} else {
tcg_gen_brcond_i32(c.cond, c.u.s32.a, c.u.s32.b, lab);
}
free_compare(&c);
r1 = get_field(s->fields, r1);
a = get_address(s, 0, get_field(s->fields, b2), get_field(s->fields, d2));
if (s->insn->data) {
tcg_gen_qemu_st64(regs[r1], a, get_mem_index(s));
} else {
tcg_gen_qemu_st32(regs[r1], a, get_mem_index(s));
}
tcg_temp_free_i64(a);
gen_set_label(lab);
return NO_EXIT;
}
static ExitStatus op_sla(DisasContext *s, DisasOps *o)
{
uint64_t sign = 1ull << s->insn->data;