diff options
| author | Richard Henderson <rth@twiddle.net> | 2012-09-01 11:14:04 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2013-01-05 12:18:45 -0800 |
| commit | 99b4f24b3e636ab241b53bc16bf8f0a0ac4a2271 (patch) | |
| tree | f7fe0ebe88043f9fe0952d665aa5f312e2d00016 | |
| parent | 2112bf1bfb696def31b211425e5e74e89f9574c3 (diff) | |
target-s390: Implement POPCNT
Signed-off-by: Richard Henderson <rth@twiddle.net>
| -rw-r--r-- | target-s390x/helper.h | 1 | ||||
| -rw-r--r-- | target-s390x/insn-data.def | 3 | ||||
| -rw-r--r-- | target-s390x/int_helper.c | 12 | ||||
| -rw-r--r-- | target-s390x/translate.c | 6 |
4 files changed, 22 insertions, 0 deletions
diff --git a/target-s390x/helper.h b/target-s390x/helper.h index aef6f0faf8..23d23d5b3a 100644 --- a/target-s390x/helper.h +++ b/target-s390x/helper.h @@ -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) diff --git a/target-s390x/insn-data.def b/target-s390x/insn-data.def index 0777b5567b..49e4a441fd 100644 --- a/target-s390x/insn-data.def +++ b/target-s390x/insn-data.def @@ -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) diff --git a/target-s390x/int_helper.c b/target-s390x/int_helper.c index dc16de206c..685830124f 100644 --- a/target-s390x/int_helper.c +++ b/target-s390x/int_helper.c @@ -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; +} diff --git a/target-s390x/translate.c b/target-s390x/translate.c index dc5aac7941..fe880956f0 100644 --- a/target-s390x/translate.c +++ b/target-s390x/translate.c @@ -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) { |