gwj / at91sam9263 · Commits

Commit 35cf7c7e183775b3a850730804c8d64f56b9c02e

Authored by aurel32
1 parent 56fdd213

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
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Showing 3 changed files with 40 additions and 0 deletions
target-ppc/helper.h
  View file @35cf7c7
... ... @@ -236,6 +236,8 @@ DEF_HELPER_3(vaddfp, void, avr, avr, avr)
236 236 DEF_HELPER_3(vsubfp, void, avr, avr, avr)
237 237 DEF_HELPER_3(vmaxfp, void, avr, avr, avr)
238 238 DEF_HELPER_3(vminfp, void, avr, avr, avr)
  239 +DEF_HELPER_4(vmaddfp, void, avr, avr, avr, avr)
  240 +DEF_HELPER_4(vnmsubfp, void, avr, avr, avr, avr)
239 241 DEF_HELPER_2(vlogefp, void, avr, avr)
240 242 DEF_HELPER_2(vrfim, void, avr, avr)
241 243 DEF_HELPER_2(vrfin, void, avr, avr)
... ...
target-ppc/op_helper.c
  View file @35cf7c7
... ... @@ -2220,6 +2220,24 @@ VCMP(gtsw, &gt;, s32)
2220 2220 #undef VCMP_DO
2221 2221 #undef VCMP
2222 2222  
  2223 +void helper_vmaddfp (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
  2224 +{
  2225 + int i;
  2226 + for (i = 0; i < ARRAY_SIZE(r->f); i++) {
  2227 + HANDLE_NAN3(r->f[i], a->f[i], b->f[i], c->f[i]) {
  2228 + /* Need to do the computation in higher precision and round
  2229 + * once at the end. */
  2230 + float64 af, bf, cf, t;
  2231 + af = float32_to_float64(a->f[i], &env->vec_status);
  2232 + bf = float32_to_float64(b->f[i], &env->vec_status);
  2233 + cf = float32_to_float64(c->f[i], &env->vec_status);
  2234 + t = float64_mul(af, cf, &env->vec_status);
  2235 + t = float64_add(t, bf, &env->vec_status);
  2236 + r->f[i] = float64_to_float32(t, &env->vec_status);
  2237 + }
  2238 + }
  2239 +}
  2240 +
2223 2241 void helper_vmhaddshs (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
2224 2242 {
2225 2243 int sat = 0;
... ... @@ -2456,6 +2474,25 @@ VMUL(uh, u16, u32)
2456 2474 #undef VMUL_DO
2457 2475 #undef VMUL
2458 2476  
  2477 +void helper_vnmsubfp (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
  2478 +{
  2479 + int i;
  2480 + for (i = 0; i < ARRAY_SIZE(r->f); i++) {
  2481 + HANDLE_NAN3(r->f[i], a->f[i], b->f[i], c->f[i]) {
  2482 + /* Need to do the computation is higher precision and round
  2483 + * once at the end. */
  2484 + float64 af, bf, cf, t;
  2485 + af = float32_to_float64(a->f[i], &env->vec_status);
  2486 + bf = float32_to_float64(b->f[i], &env->vec_status);
  2487 + cf = float32_to_float64(c->f[i], &env->vec_status);
  2488 + t = float64_mul(af, cf, &env->vec_status);
  2489 + t = float64_sub(t, bf, &env->vec_status);
  2490 + t = float64_chs(t);
  2491 + r->f[i] = float64_to_float32(t, &env->vec_status);
  2492 + }
  2493 + }
  2494 +}
  2495 +
2459 2496 void helper_vperm (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
2460 2497 {
2461 2498 ppc_avr_t result;
... ...
target-ppc/translate.c
  View file @35cf7c7
... ... @@ -6584,6 +6584,7 @@ GEN_VAFORM_PAIRED(vmsumubm, vmsummbm, 18)
6584 6584 GEN_VAFORM_PAIRED(vmsumuhm, vmsumuhs, 19)
6585 6585 GEN_VAFORM_PAIRED(vmsumshm, vmsumshs, 20)
6586 6586 GEN_VAFORM_PAIRED(vsel, vperm, 21)
  6587 +GEN_VAFORM_PAIRED(vmaddfp, vnmsubfp, 23)
6587 6588  
6588 6589 /*** SPE extension ***/
6589 6590 /* Register moves */
... ...