[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH 07/14] Add v{add,sub}fp instructions
From: |
Nathan Froyd |
Subject: |
Re: [Qemu-devel] [PATCH 07/14] Add v{add,sub}fp instructions |
Date: |
Sun, 8 Feb 2009 14:39:04 -0800 |
User-agent: |
Mutt/1.5.13 (2006-08-11) |
We don't need to split up vaddfp and vsubfp because the softfloat code
already properly handles magnitude subtraction of infinities.
Signed-off-by: Nathan Froyd <address@hidden>
---
target-ppc/helper.h | 2 ++
target-ppc/op_helper.c | 14 ++++++++++++++
target-ppc/translate.c | 2 ++
3 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index 1c76586..43d1867 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -232,6 +232,8 @@ DEF_HELPER_3(vsum2sws, void, avr, avr, avr)
DEF_HELPER_3(vsum4sbs, void, avr, avr, avr)
DEF_HELPER_3(vsum4shs, void, avr, avr, avr)
DEF_HELPER_3(vsum4ubs, void, avr, avr, avr)
+DEF_HELPER_3(vaddfp, void, avr, avr, avr)
+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_2(vlogefp, void, avr, avr)
diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c
index 674a21d..6cf47a3 100644
--- a/target-ppc/op_helper.c
+++ b/target-ppc/op_helper.c
@@ -2099,6 +2099,20 @@ VARITH(uwm, u32)
#undef VARITH_DO
#undef VARITH
+#define VARITHFP(suffix, func) \
+ void helper_v##suffix (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
+ { \
+ int i; \
+ for (i = 0; i < ARRAY_SIZE(r->f); i++) { \
+ HANDLE_NAN2(r->f[i], a->f[i], b->f[i]) { \
+ r->f[i] = func(a->f[i], b->f[i], &env->vec_status); \
+ } \
+ } \
+ }
+VARITHFP(addfp, float32_add)
+VARITHFP(subfp, float32_sub)
+#undef VARITHFP
+
#define VARITHSAT_CASE(type, op, cvt, element) \
{ \
type result = (type)a->element[i] op (type)b->element[i]; \
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 1f6386b..af83b19 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -6395,6 +6395,8 @@ GEN_VXFORM(vsum4sbs, 4, 28);
GEN_VXFORM(vsum4shs, 4, 25);
GEN_VXFORM(vsum2sws, 4, 26);
GEN_VXFORM(vsumsws, 4, 30);
+GEN_VXFORM(vaddfp, 5, 0);
+GEN_VXFORM(vsubfp, 5, 1);
GEN_VXFORM(vmaxfp, 5, 16);
GEN_VXFORM(vminfp, 5, 17);
--
1.6.0.5