diff options
Diffstat (limited to 'target/s390x/vec_helper.c')
-rw-r--r-- | target/s390x/vec_helper.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/target/s390x/vec_helper.c b/target/s390x/vec_helper.c index 986e7cc..599bab0 100644 --- a/target/s390x/vec_helper.c +++ b/target/s390x/vec_helper.c @@ -19,6 +19,28 @@ #include "exec/cpu_ldst.h" #include "exec/exec-all.h" +void HELPER(gvec_vbperm)(void *v1, const void *v2, const void *v3, + uint32_t desc) +{ + S390Vector tmp = {}; + uint16_t result = 0; + int i; + + for (i = 0; i < 16; i++) { + const uint8_t bit_nr = s390_vec_read_element8(v3, i); + uint16_t bit; + + if (bit_nr >= 128) { + continue; + } + bit = (s390_vec_read_element8(v2, bit_nr / 8) + >> (7 - (bit_nr % 8))) & 1; + result |= (bit << (15 - i)); + } + s390_vec_write_element16(&tmp, 3, result); + *(S390Vector *)v1 = tmp; +} + void HELPER(vll)(CPUS390XState *env, void *v1, uint64_t addr, uint64_t bytes) { if (likely(bytes >= 16)) { |