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target-ppc: Add vct{u,s}xs 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@6572 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2009-02-09 16:49:20 +00:00
parent 819ca12127
commit 875b31db7f
3 changed files with 31 additions and 0 deletions
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2
target-ppc/helper.h
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@ -253,6 +253,8 @@ DEF_HELPER_2(vrfip, void, avr, avr)
DEF_HELPER_2(vrfiz, void, avr, avr)
DEF_HELPER_3(vcfux, void, avr, avr, i32)
DEF_HELPER_3(vcfsx, void, avr, avr, i32)
DEF_HELPER_3(vctuxs, void, avr, avr, i32)
DEF_HELPER_3(vctsxs, void, avr, avr, i32)
DEF_HELPER_1(efscfsi, i32, i32)
DEF_HELPER_1(efscfui, i32, i32)

27
target-ppc/op_helper.c
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@ -2288,6 +2288,33 @@ void helper_vcmpbfp_dot (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
vcmpbfp_internal(r, a, b, 1);
}
#define VCT(suffix, satcvt, element) \
void helper_vct##suffix (ppc_avr_t *r, ppc_avr_t *b, uint32_t uim) \
{ \
int i; \
int sat = 0; \
float_status s = env->vec_status; \
set_float_rounding_mode(float_round_to_zero, &s); \
for (i = 0; i < ARRAY_SIZE(r->f); i++) { \
if (float32_is_nan(b->f[i]) || \
float32_is_signaling_nan(b->f[i])) { \
r->element[i] = 0; \
} else { \
float64 t = float32_to_float64(b->f[i], &s); \
int64_t j; \
t = float64_scalbn(t, uim, &s); \
j = float64_to_int64(t, &s); \
r->element[i] = satcvt(j, &sat); \
} \
} \
if (sat) { \
env->vscr |= (1 << VSCR_SAT); \
} \
}
VCT(uxs, cvtsduw, u32)
VCT(sxs, cvtsdsw, s32)
#undef VCT
void helper_vmaddfp (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
{
int i;

2
target-ppc/translate.c
View File

@ -6521,6 +6521,8 @@ GEN_VXFORM_UIMM(vsplth, 6, 9);
GEN_VXFORM_UIMM(vspltw, 6, 10);
GEN_VXFORM_UIMM(vcfux, 5, 12);
GEN_VXFORM_UIMM(vcfsx, 5, 13);
GEN_VXFORM_UIMM(vctuxs, 5, 14);
GEN_VXFORM_UIMM(vctsxs, 5, 15);
GEN_HANDLER(vsldoi, 0x04, 0x16, 0xFF, 0x00000400, PPC_ALTIVEC)
{