From: Aurelien Jarno <aurelien@aurel32.net>
To: qemu-devel@nongnu.org
Cc: Aurelien Jarno <aurelien@aurel32.net>
Subject: [Qemu-devel] [PATCH 02/11] target-sh4: use float32_muladd() to implement fmac
Date: Mon, 17 Sep 2012 01:11:51 +0200 [thread overview]
Message-ID: <1347837120-14422-3-git-send-email-aurelien@aurel32.net> (raw)
In-Reply-To: <1347837120-14422-1-git-send-email-aurelien@aurel32.net>
There is no need to add a SH4 specific pickNaNMulAdd() to softfloat as
SH4 is always returning a default NaN.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
---
target-sh4/op_helper.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/target-sh4/op_helper.c b/target-sh4/op_helper.c
index 9b4328d..bf835fa 100644
--- a/target-sh4/op_helper.c
+++ b/target-sh4/op_helper.c
@@ -623,8 +623,7 @@ float64 helper_float_DT(CPUSH4State *env, uint32_t t0)
float32 helper_fmac_FT(CPUSH4State *env, float32 t0, float32 t1, float32 t2)
{
set_float_exception_flags(0, &env->fp_status);
- t0 = float32_mul(t0, t1, &env->fp_status);
- t0 = float32_add(t0, t2, &env->fp_status);
+ t0 = float32_muladd(t0, t1, t2, 0, &env->fp_status);
update_fpscr(env, GETPC());
return t0;
}
--
1.7.10.4
next prev parent reply other threads:[~2012-09-16 23:12 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-16 23:11 [Qemu-devel] [PATCH 00/11] target-sh4: misc optimizations and cleanup Aurelien Jarno
2012-09-16 23:11 ` [Qemu-devel] [PATCH 01/11] target-sh4: mark a few helpers const and pure Aurelien Jarno
2012-09-16 23:11 ` Aurelien Jarno [this message]
2012-09-16 23:11 ` [Qemu-devel] [PATCH 03/11] target-sh4: implement addc and subc using TCG Aurelien Jarno
2012-09-16 23:11 ` [Qemu-devel] [PATCH 04/11] target-sh4: implement addv and subv " Aurelien Jarno
2012-09-16 23:11 ` [Qemu-devel] [PATCH 05/11] target-sh4: optimize xtrct Aurelien Jarno
2012-09-16 23:11 ` [Qemu-devel] [PATCH 06/11] target-sh4: optimize swap.w Aurelien Jarno
2012-09-16 23:11 ` [Qemu-devel] [PATCH 07/11] target-sh4: remove gen_clr_t() and gen_set_t() Aurelien Jarno
2012-09-16 23:11 ` [Qemu-devel] [PATCH 08/11] target-sh4: rework exceptions handling Aurelien Jarno
2012-09-16 23:11 ` [Qemu-devel] [PATCH 09/11] target-sh4: cleanup DisasContext Aurelien Jarno
2012-09-16 23:11 ` [Qemu-devel] [PATCH 10/11] target-sh4: remove useless code Aurelien Jarno
2012-09-16 23:12 ` [Qemu-devel] [PATCH 11/11] gdbstub/sh4: fix build with USE_SOFTFLOAT_STRUCT_TYPES Aurelien Jarno
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