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| author | Tom Musta <tommusta@gmail.com> | 2014-02-12 15:23:19 -0600 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2014-03-05 03:07:00 +0100 |
| commit | ac174549b730531a4d13c8281e2247e66ba0f46d (patch) | |
| tree | 5d14392025a52e6525c84ae8c9fb562693f992ab /target-ppc/int_helper.c | |
| parent | 57354f8f12d04efc3c38126b967fc178b56885f5 (diff) | |
target-ppc: Altivec 2.07: Vector Permute and Exclusive OR
This patch adds the Vector Permuate and Exclusive OR (vpermxor)
instruction introduced in Power ISA Version 2.07.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'target-ppc/int_helper.c')
| -rw-r--r-- | target-ppc/int_helper.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c index e6a7ad025c..63dde94b04 100644 --- a/target-ppc/int_helper.c +++ b/target-ppc/int_helper.c @@ -2700,6 +2700,20 @@ void helper_vshasigmad(ppc_avr_t *r, ppc_avr_t *a, uint32_t st_six) #undef ROTRu64 #undef EL_IDX +void helper_vpermxor(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) +{ + int i; + VECTOR_FOR_INORDER_I(i, u8) { + int indexA = c->u8[i] >> 4; + int indexB = c->u8[i] & 0xF; +#if defined(HOST_WORDS_BIGENDIAN) + r->u8[i] = a->u8[indexA] ^ b->u8[indexB]; +#else + r->u8[i] = a->u8[15-indexA] ^ b->u8[15-indexB]; +#endif + } +} + #undef VECTOR_FOR_INORDER_I #undef HI_IDX #undef LO_IDX |