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Add vsldoi instruction.

Browse source 
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@6171 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2009-01-04 22:10:09 +00:00
parent 5e1d0985f9
commit cd633b10fd
3 changed files with 50 additions and 0 deletions
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28
target-ppc/op_helper.c
View file

@ -2145,6 +2145,34 @@ VSL(h, u16)
VSL(w, u32)
#undef VSL
void helper_vsldoi (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t shift)
{
int sh = shift & 0xf;
int i;
ppc_avr_t result;
#if defined(WORDS_BIGENDIAN)
for (i = 0; i < ARRAY_SIZE(r->u8); i++) {
int index = sh + i;
if (index > 0xf) {
result.u8[i] = b->u8[index-0x10];
} else {
result.u8[i] = a->u8[index];
}
}
#else
for (i = 0; i < ARRAY_SIZE(r->u8); i++) {
int index = (16 - sh) + i;
if (index > 0xf) {
result.u8[i] = a->u8[index-0x10];
} else {
result.u8[i] = b->u8[index];
}
}
#endif
*r = result;
}
void helper_vslo (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
{
int sh = (b->u8[LO_IDX*0xf] >> 3) & 0xf;