From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LWZJf-0004Is-4D for qemu-devel@nongnu.org; Mon, 09 Feb 2009 11:49:03 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LWZJe-0004IY-55 for qemu-devel@nongnu.org; Mon, 09 Feb 2009 11:49:02 -0500 Received: from [199.232.76.173] (port=34572 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LWZJd-0004IR-V8 for qemu-devel@nongnu.org; Mon, 09 Feb 2009 11:49:01 -0500 Received: from savannah.gnu.org ([199.232.41.3]:46443 helo=sv.gnu.org) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1LWZJd-0003Tc-D7 for qemu-devel@nongnu.org; Mon, 09 Feb 2009 11:49:01 -0500 Received: from cvs.savannah.gnu.org ([199.232.41.69]) by sv.gnu.org with esmtp (Exim 4.63) (envelope-from ) id 1LWZJc-0004oH-Rj for qemu-devel@nongnu.org; Mon, 09 Feb 2009 16:49:00 +0000 Received: from aurel32 by cvs.savannah.gnu.org with local (Exim 4.63) (envelope-from ) id 1LWZJc-0004nf-BU for qemu-devel@nongnu.org; Mon, 09 Feb 2009 16:49:00 +0000 MIME-Version: 1.0 Errors-To: aurel32 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Aurelien Jarno Message-Id: Date: Mon, 09 Feb 2009 16:49:00 +0000 Subject: [Qemu-devel] [6570] target-ppc: Add vmaddfp and vnmsubfp instructions Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Revision: 6570 http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6570 Author: aurel32 Date: 2009-02-09 16:48:59 +0000 (Mon, 09 Feb 2009) Log Message: ----------- target-ppc: Add vmaddfp and vnmsubfp instructions Signed-off-by: Nathan Froyd Signed-off-by: Aurelien Jarno Modified Paths: -------------- trunk/target-ppc/helper.h trunk/target-ppc/op_helper.c trunk/target-ppc/translate.c Modified: trunk/target-ppc/helper.h =================================================================== --- trunk/target-ppc/helper.h 2009-02-09 16:48:51 UTC (rev 6569) +++ trunk/target-ppc/helper.h 2009-02-09 16:48:59 UTC (rev 6570) @@ -236,6 +236,8 @@ DEF_HELPER_3(vsubfp, void, avr, avr, avr) DEF_HELPER_3(vmaxfp, void, avr, avr, avr) DEF_HELPER_3(vminfp, void, avr, avr, avr) +DEF_HELPER_4(vmaddfp, void, avr, avr, avr, avr) +DEF_HELPER_4(vnmsubfp, void, avr, avr, avr, avr) DEF_HELPER_2(vlogefp, void, avr, avr) DEF_HELPER_2(vrfim, void, avr, avr) DEF_HELPER_2(vrfin, void, avr, avr) Modified: trunk/target-ppc/op_helper.c =================================================================== --- trunk/target-ppc/op_helper.c 2009-02-09 16:48:51 UTC (rev 6569) +++ trunk/target-ppc/op_helper.c 2009-02-09 16:48:59 UTC (rev 6570) @@ -2220,6 +2220,24 @@ #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 @@ #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; Modified: trunk/target-ppc/translate.c =================================================================== --- trunk/target-ppc/translate.c 2009-02-09 16:48:51 UTC (rev 6569) +++ trunk/target-ppc/translate.c 2009-02-09 16:48:59 UTC (rev 6570) @@ -6584,6 +6584,7 @@ GEN_VAFORM_PAIRED(vmsumuhm, vmsumuhs, 19) GEN_VAFORM_PAIRED(vmsumshm, vmsumshs, 20) GEN_VAFORM_PAIRED(vsel, vperm, 21) +GEN_VAFORM_PAIRED(vmaddfp, vnmsubfp, 23) /*** SPE extension ***/ /* Register moves */