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target-s390: Implement POPCNT 

Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2012-09-01 11:14:04 -07:00
parent 2112bf1bfb
commit 99b4f24b3e
4 changed files with 22 additions and 0 deletions
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1
target-s390x/helper.h
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@ -87,6 +87,7 @@ DEF_HELPER_4(tr, void, env, i32, i64, i64)
DEF_HELPER_4(cksm, i64, env, i64, i64, i64)
DEF_HELPER_FLAGS_5(calc_cc, TCG_CALL_NO_RWG_SE, i32, env, i32, i64, i64, i64)
DEF_HELPER_FLAGS_2(sfpc, TCG_CALL_NO_RWG, void, env, i64)
DEF_HELPER_FLAGS_1(popcnt, TCG_CALL_NO_RWG_SE, i64, i64)
#ifndef CONFIG_USER_ONLY
DEF_HELPER_3(servc, i32, env, i64, i64)

3
target-s390x/insn-data.def
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@ -539,6 +539,9 @@
C(0xe336, PFD, RXY_b, GIE, 0, 0, 0, 0, 0, 0)
C(0xc602, PFDRL, RIL_c, GIE, 0, 0, 0, 0, 0, 0)
/* POPULATION COUNT */
C(0xb9e1, POPCNT, RRE, PC, 0, r2_o, r1, 0, popcnt, nz64)
/* ROTATE LEFT SINGLE LOGICAL */
C(0xeb1d, RLL, RSY_a, Z, r3_o, sh32, new, r1_32, rll32, 0)
C(0xeb1c, RLLG, RSY_a, Z, r3_o, sh64, r1, 0, rll64, 0)

12
target-s390x/int_helper.c
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@ -191,3 +191,15 @@ uint64_t HELPER(cvd)(int32_t bin)
return dec;
}
uint64_t HELPER(popcnt)(uint64_t r2)
{
uint64_t ret = 0;
int i;
for (i = 0; i < 64; i += 8) {
uint64_t t = ctpop32((r2 >> i) & 0xff);
ret |= t << i;
}
return ret;
}

6
target-s390x/translate.c
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@ -2558,6 +2558,12 @@ static ExitStatus op_ori(DisasContext *s, DisasOps *o)
return NO_EXIT;
}
static ExitStatus op_popcnt(DisasContext *s, DisasOps *o)
{
gen_helper_popcnt(o->out, o->in2);
return NO_EXIT;
}
#ifndef CONFIG_USER_ONLY
static ExitStatus op_ptlb(DisasContext *s, DisasOps *o)
{