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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
This commit is contained in:
aurel32 2009-01-04 22:10:49 +00:00
parent 27a4edb310
commit e4e6bee787
3 changed files with 30 additions and 0 deletions
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3
target-ppc/helper.h
View File

@ -156,6 +156,9 @@ DEF_HELPER_3(vrlb, void, avr, avr, avr)
DEF_HELPER_3(vrlh, void, avr, avr, avr)
DEF_HELPER_3(vrlw, void, avr, avr, avr)
DEF_HELPER_4(vsldoi, void, avr, avr, avr, i32)
DEF_HELPER_3(vspltb, void, avr, avr, i32)
DEF_HELPER_3(vsplth, void, avr, avr, i32)
DEF_HELPER_3(vspltw, void, avr, avr, i32)
DEF_HELPER_1(efscfsi, i32, i32)
DEF_HELPER_1(efscfui, i32, i32)

23
target-ppc/op_helper.c
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@ -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) \
{ \

4
target-ppc/translate.c
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@ -6308,6 +6308,10 @@ GEN_VXFORM(vrlw, 2, 2);
tcg_temp_free_ptr(rd); \
}
GEN_VXFORM_UIMM(vspltb, 6, 8);
GEN_VXFORM_UIMM(vsplth, 6, 9);
GEN_VXFORM_UIMM(vspltw, 6, 10);
GEN_HANDLER(vsldoi, 0x04, 0x16, 0xFF, 0x00000400, PPC_ALTIVEC)
{
TCGv_ptr ra, rb, rd;