diff options
author | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2009-01-04 22:12:39 +0000 |
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committer | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2009-01-04 22:12:39 +0000 |
commit | 4d9903b6c3ae0f6ea6e2158efb93fae11a787358 (patch) | |
tree | bc77b3dcb4401814cb4db51f8fb31719dbf0036c /target-ppc/op_helper.c | |
parent | b161ae276691ead06850d858ed2bce0eeab1f38d (diff) |
Add vmsumuh{m,s} instructions.
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6185 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-ppc/op_helper.c')
-rw-r--r-- | target-ppc/op_helper.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c index f787774a09..be3e9289ea 100644 --- a/target-ppc/op_helper.c +++ b/target-ppc/op_helper.c @@ -2180,6 +2180,40 @@ void helper_vmsumubm (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) } } +void helper_vmsumuhm (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) +{ + uint32_t prod[8]; + int i; + + for (i = 0; i < ARRAY_SIZE(r->u16); i++) { + prod[i] = a->u16[i] * b->u16[i]; + } + + VECTOR_FOR_INORDER_I(i, u32) { + r->u32[i] = c->u32[i] + prod[2*i] + prod[2*i+1]; + } +} + +void helper_vmsumuhs (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) +{ + uint32_t prod[8]; + int i; + int sat = 0; + + for (i = 0; i < ARRAY_SIZE(r->u16); i++) { + prod[i] = a->u16[i] * b->u16[i]; + } + + VECTOR_FOR_INORDER_I (i, s32) { + uint64_t t = (uint64_t)c->u32[i] + prod[2*i] + prod[2*i+1]; + r->u32[i] = cvtuduw(t, &sat); + } + + if (sat) { + env->vscr |= (1 << VSCR_SAT); + } +} + #define VMUL_DO(name, mul_element, prod_element, evenp) \ void helper_v##name (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ { \ |