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target-ppc: Add vcmp{eq, ge, gt, b}fp{, .} 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@6571 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2009-02-09 16:49:10 +00:00
parent 35cf7c7e18
commit 819ca12127
3 changed files with 80 additions and 0 deletions
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8
target-ppc/helper.h
View File

@ -132,6 +132,10 @@ DEF_HELPER_3(vcmpgtuw, void, avr, avr, avr)
DEF_HELPER_3(vcmpgtsb, void, avr, avr, avr)
DEF_HELPER_3(vcmpgtsh, void, avr, avr, avr)
DEF_HELPER_3(vcmpgtsw, void, avr, avr, avr)
DEF_HELPER_3(vcmpeqfp, void, avr, avr, avr)
DEF_HELPER_3(vcmpgefp, void, avr, avr, avr)
DEF_HELPER_3(vcmpgtfp, void, avr, avr, avr)
DEF_HELPER_3(vcmpbfp, void, avr, avr, avr)
DEF_HELPER_3(vcmpequb_dot, void, avr, avr, avr)
DEF_HELPER_3(vcmpequh_dot, void, avr, avr, avr)
DEF_HELPER_3(vcmpequw_dot, void, avr, avr, avr)
@ -141,6 +145,10 @@ DEF_HELPER_3(vcmpgtuw_dot, void, avr, avr, avr)
DEF_HELPER_3(vcmpgtsb_dot, void, avr, avr, avr)
DEF_HELPER_3(vcmpgtsh_dot, void, avr, avr, avr)
DEF_HELPER_3(vcmpgtsw_dot, void, avr, avr, avr)
DEF_HELPER_3(vcmpeqfp_dot, void, avr, avr, avr)
DEF_HELPER_3(vcmpgefp_dot, void, avr, avr, avr)
DEF_HELPER_3(vcmpgtfp_dot, void, avr, avr, avr)
DEF_HELPER_3(vcmpbfp_dot, void, avr, avr, avr)
DEF_HELPER_3(vmrglb, void, avr, avr, avr)
DEF_HELPER_3(vmrglh, void, avr, avr, avr)
DEF_HELPER_3(vmrglw, void, avr, avr, avr)

68
target-ppc/op_helper.c
View File

@ -2220,6 +2220,74 @@ VCMP(gtsw, >, s32)
#undef VCMP_DO
#undef VCMP
#define VCMPFP_DO(suffix, compare, order, record) \
void helper_vcmp##suffix (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
{ \
uint32_t ones = (uint32_t)-1; \
uint32_t all = ones; \
uint32_t none = 0; \
int i; \
for (i = 0; i < ARRAY_SIZE(r->f); i++) { \
uint32_t result; \
int rel = float32_compare_quiet(a->f[i], b->f[i], &env->vec_status); \
if (rel == float_relation_unordered) { \
result = 0; \
} else if (rel compare order) { \
result = ones; \
} else { \
result = 0; \
} \
r->u32[i] = result; \
all &= result; \
none |= result; \
} \
if (record) { \
env->crf[6] = ((all != 0) << 3) | ((none == 0) << 1); \
} \
}
#define VCMPFP(suffix, compare, order) \
VCMPFP_DO(suffix, compare, order, 0) \
VCMPFP_DO(suffix##_dot, compare, order, 1)
VCMPFP(eqfp, ==, float_relation_equal)
VCMPFP(gefp, !=, float_relation_less)
VCMPFP(gtfp, ==, float_relation_greater)
#undef VCMPFP_DO
#undef VCMPFP
static always_inline void vcmpbfp_internal (ppc_avr_t *r, ppc_avr_t *a,
ppc_avr_t *b, int record)
{
int i;
int all_in = 0;
for (i = 0; i < ARRAY_SIZE(r->f); i++) {
int le_rel = float32_compare_quiet(a->f[i], b->f[i], &env->vec_status);
if (le_rel == float_relation_unordered) {
r->u32[i] = 0xc0000000;
/* ALL_IN does not need to be updated here. */
} else {
float32 bneg = float32_chs(b->f[i]);
int ge_rel = float32_compare_quiet(a->f[i], bneg, &env->vec_status);
int le = le_rel != float_relation_greater;
int ge = ge_rel != float_relation_less;
r->u32[i] = ((!le) << 31) | ((!ge) << 30);
all_in |= (!le | !ge);
}
}
if (record) {
env->crf[6] = (all_in == 0) << 1;
}
}
void helper_vcmpbfp (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
{
vcmpbfp_internal(r, a, b, 0);
}
void helper_vcmpbfp_dot (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
{
vcmpbfp_internal(r, a, b, 1);
}
void helper_vmaddfp (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
{
int i;

4
target-ppc/translate.c
View File

@ -6430,6 +6430,10 @@ GEN_VXRFORM(vcmpgtsw, 3, 14)
GEN_VXRFORM(vcmpgtub, 3, 8)
GEN_VXRFORM(vcmpgtuh, 3, 9)
GEN_VXRFORM(vcmpgtuw, 3, 10)
GEN_VXRFORM(vcmpeqfp, 3, 3)
GEN_VXRFORM(vcmpgefp, 3, 7)
GEN_VXRFORM(vcmpgtfp, 3, 11)
GEN_VXRFORM(vcmpbfp, 3, 15)
#define GEN_VXFORM_SIMM(name, opc2, opc3) \
GEN_HANDLER(name, 0x04, opc2, opc3, 0x00000000, PPC_ALTIVEC) \