diff options
Diffstat (limited to 'target/s390x/vec_int_helper.c')
| -rw-r--r-- | target/s390x/vec_int_helper.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/target/s390x/vec_int_helper.c b/target/s390x/vec_int_helper.c index 09137dab99..68eaae407b 100644 --- a/target/s390x/vec_int_helper.c +++ b/target/s390x/vec_int_helper.c @@ -28,6 +28,19 @@ static void s390_vec_xor(S390Vector *res, const S390Vector *a, res->doubleword[1] = a->doubleword[1] ^ b->doubleword[1]; } +static void s390_vec_and(S390Vector *res, const S390Vector *a, + const S390Vector *b) +{ + res->doubleword[0] = a->doubleword[0] & b->doubleword[0]; + res->doubleword[1] = a->doubleword[1] & b->doubleword[1]; +} + +static bool s390_vec_equal(const S390Vector *a, const S390Vector *b) +{ + return a->doubleword[0] == b->doubleword[0] && + a->doubleword[1] == b->doubleword[1]; +} + static void s390_vec_shl(S390Vector *d, const S390Vector *a, uint64_t count) { uint64_t tmp; @@ -583,3 +596,21 @@ void HELPER(gvec_vscbi##BITS)(void *v1, const void *v2, const void *v3, \ } DEF_VSCBI(8) DEF_VSCBI(16) + +void HELPER(gvec_vtm)(void *v1, const void *v2, CPUS390XState *env, + uint32_t desc) +{ + S390Vector tmp; + + s390_vec_and(&tmp, v1, v2); + if (s390_vec_is_zero(&tmp)) { + /* Selected bits all zeros; or all mask bits zero */ + env->cc_op = 0; + } else if (s390_vec_equal(&tmp, v2)) { + /* Selected bits all ones */ + env->cc_op = 3; + } else { + /* Selected bits a mix of zeros and ones */ + env->cc_op = 1; + } +} |