diff options
| author | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2009-01-04 22:10:49 +0000 |
|---|---|---|
| committer | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2009-01-04 22:10:49 +0000 |
| commit | e4e6bee78704c431547714c0bc1eea537e1fb3ed (patch) | |
| tree | 4c752c07e3610bbd56a776ea32bc20aa67f16e8a /target-ppc/op_helper.c | |
| parent | 27a4edb310f1fb5cdcdbb8426efcf468d062d9b8 (diff) | |
Add vsplt{b,h,w} 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@6174 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-ppc/op_helper.c')
| -rw-r--r-- | target-ppc/op_helper.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c index fc5f20eb25..c4060bafe9 100644 --- a/target-ppc/op_helper.c +++ b/target-ppc/op_helper.c @@ -2186,6 +2186,29 @@ void helper_vslo (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) #endif } +/* Experimental testing shows that hardware masks the immediate. */ +#define _SPLAT_MASKED(element) (splat & (ARRAY_SIZE(r->element) - 1)) +#if defined(WORDS_BIGENDIAN) +#define SPLAT_ELEMENT(element) _SPLAT_MASKED(element) +#else +#define SPLAT_ELEMENT(element) (ARRAY_SIZE(r->element)-1 - _SPLAT_MASKED(element)) +#endif +#define VSPLT(suffix, element) \ + void helper_vsplt##suffix (ppc_avr_t *r, ppc_avr_t *b, uint32_t splat) \ + { \ + uint32_t s = b->element[SPLAT_ELEMENT(element)]; \ + int i; \ + for (i = 0; i < ARRAY_SIZE(r->element); i++) { \ + r->element[i] = s; \ + } \ + } +VSPLT(b, u8) +VSPLT(h, u16) +VSPLT(w, u32) +#undef VSPLT +#undef SPLAT_ELEMENT +#undef _SPLAT_MASKED + #define VSR(suffix, element) \ void helper_vsr##suffix (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \ { \ |