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| author |   aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2009-02-09 16:48:59 +0000 |
|---|---|---|
| committer | aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162> | 2009-02-09 16:48:59 +0000 |
| commit | 35cf7c7e183775b3a850730804c8d64f56b9c02e (patch) | |
| tree | 53b9b1a90eee0483cdfac3c85b5aa3f3c66069f8 /target-ppc/op_helper.c | |
| parent | target-ppc: Add v{add,sub}fp instructions (diff) | |
| download | qemu-kvm-35cf7c7e183775b3a850730804c8d64f56b9c02e.tar.gz qemu-kvm-35cf7c7e183775b3a850730804c8d64f56b9c02e.tar.bz2 qemu-kvm-35cf7c7e183775b3a850730804c8d64f56b9c02e.zip | |
target-ppc: Add vmaddfp and vnmsubfp 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@6570 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-ppc/op_helper.c')
| -rw-r--r-- | target-ppc/op_helper.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c index 6cf47a357..f59cd15cf 100644 --- a/target-ppc/op_helper.c +++ b/target-ppc/op_helper.c @@ -2220,6 +2220,24 @@ VCMP(gtsw, >, s32) #undef VCMP_DO #undef VCMP +void helper_vmaddfp (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) +{ + int i; + for (i = 0; i < ARRAY_SIZE(r->f); i++) { + HANDLE_NAN3(r->f[i], a->f[i], b->f[i], c->f[i]) { + /* Need to do the computation in higher precision and round + * once at the end. */ + float64 af, bf, cf, t; + af = float32_to_float64(a->f[i], &env->vec_status); + bf = float32_to_float64(b->f[i], &env->vec_status); + cf = float32_to_float64(c->f[i], &env->vec_status); + t = float64_mul(af, cf, &env->vec_status); + t = float64_add(t, bf, &env->vec_status); + r->f[i] = float64_to_float32(t, &env->vec_status); + } + } +} + void helper_vmhaddshs (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) { int sat = 0; @@ -2456,6 +2474,25 @@ VMUL(uh, u16, u32) #undef VMUL_DO #undef VMUL +void helper_vnmsubfp (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) +{ + int i; + for (i = 0; i < ARRAY_SIZE(r->f); i++) { + HANDLE_NAN3(r->f[i], a->f[i], b->f[i], c->f[i]) { + /* Need to do the computation is higher precision and round + * once at the end. */ + float64 af, bf, cf, t; + af = float32_to_float64(a->f[i], &env->vec_status); + bf = float32_to_float64(b->f[i], &env->vec_status); + cf = float32_to_float64(c->f[i], &env->vec_status); + t = float64_mul(af, cf, &env->vec_status); + t = float64_sub(t, bf, &env->vec_status); + t = float64_chs(t); + r->f[i] = float64_to_float32(t, &env->vec_status); + } + } +} + void helper_vperm (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) { ppc_avr_t result; |