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From ec4318943a26d4bd4050481d11709853184f2794 Mon Sep 17 00:00:00 2001
From: Szabolcs Nagy <nsz@port70.net>
Date: Wed, 5 Nov 2014 22:13:58 +0100
Subject: [PATCH] math: use fnstsw consistently instead of fstsw in x87 asm
fnstsw does not wait for pending unmasked x87 floating-point exceptions
and it is the same as fstsw when all exceptions are masked which is the
only environment libc supports.
---
src/math/i386/fmod.s | 2 +-
src/math/i386/fmodf.s | 2 +-
src/math/i386/fmodl.s | 2 +-
src/math/i386/remainder.s | 2 +-
src/math/i386/remainderf.s | 2 +-
src/math/i386/remainderl.s | 2 +-
src/math/i386/sqrt.s | 2 +-
src/math/x32/fmodl.s | 2 +-
src/math/x32/remainderl.s | 2 +-
src/math/x86_64/fmodl.s | 2 +-
src/math/x86_64/remainderl.s | 2 +-
11 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/src/math/i386/fmod.s b/src/math/i386/fmod.s
index 069fbfe..2113b3c 100644
--- a/src/math/i386/fmod.s
+++ b/src/math/i386/fmod.s
@@ -4,7 +4,7 @@ fmod:
fldl 12(%esp)
fldl 4(%esp)
1: fprem
- fstsw %ax
+ fnstsw %ax
sahf
jp 1b
fstp %st(1)
diff --git a/src/math/i386/fmodf.s b/src/math/i386/fmodf.s
index d99c80f..e04e2a5 100644
--- a/src/math/i386/fmodf.s
+++ b/src/math/i386/fmodf.s
@@ -4,7 +4,7 @@ fmodf:
flds 8(%esp)
flds 4(%esp)
1: fprem
- fstsw %ax
+ fnstsw %ax
sahf
jp 1b
fstp %st(1)
diff --git a/src/math/i386/fmodl.s b/src/math/i386/fmodl.s
index 7e07e7b..0cb3fe9 100644
--- a/src/math/i386/fmodl.s
+++ b/src/math/i386/fmodl.s
@@ -4,7 +4,7 @@ fmodl:
fldt 16(%esp)
fldt 4(%esp)
1: fprem
- fstsw %ax
+ fnstsw %ax
sahf
jp 1b
fstp %st(1)
diff --git a/src/math/i386/remainder.s b/src/math/i386/remainder.s
index 7f4be05..ab1da95 100644
--- a/src/math/i386/remainder.s
+++ b/src/math/i386/remainder.s
@@ -7,7 +7,7 @@ drem:
fldl 12(%esp)
fldl 4(%esp)
1: fprem1
- fstsw %ax
+ fnstsw %ax
sahf
jp 1b
fstp %st(1)
diff --git a/src/math/i386/remainderf.s b/src/math/i386/remainderf.s
index ac6e367..6a7378a 100644
--- a/src/math/i386/remainderf.s
+++ b/src/math/i386/remainderf.s
@@ -7,7 +7,7 @@ dremf:
flds 8(%esp)
flds 4(%esp)
1: fprem1
- fstsw %ax
+ fnstsw %ax
sahf
jp 1b
fstp %st(1)
diff --git a/src/math/i386/remainderl.s b/src/math/i386/remainderl.s
index 0097872..b41518e 100644
--- a/src/math/i386/remainderl.s
+++ b/src/math/i386/remainderl.s
@@ -4,7 +4,7 @@ remainderl:
fldt 16(%esp)
fldt 4(%esp)
1: fprem1
- fstsw %ax
+ fnstsw %ax
sahf
jp 1b
fstp %st(1)
diff --git a/src/math/i386/sqrt.s b/src/math/i386/sqrt.s
index 8289d09..57837e2 100644
--- a/src/math/i386/sqrt.s
+++ b/src/math/i386/sqrt.s
@@ -2,7 +2,7 @@
.type sqrt,@function
sqrt: fldl 4(%esp)
fsqrt
- fstsw %ax
+ fnstsw %ax
sub $12,%esp
fld %st(0)
fstpt (%esp)
diff --git a/src/math/x32/fmodl.s b/src/math/x32/fmodl.s
index b951320..c3f790c 100644
--- a/src/math/x32/fmodl.s
+++ b/src/math/x32/fmodl.s
@@ -4,7 +4,7 @@ fmodl:
fldt 24(%esp)
fldt 8(%esp)
1: fprem
- fstsw %ax
+ fnstsw %ax
testb $4,%ah
jnz 1b
fstp %st(1)
diff --git a/src/math/x32/remainderl.s b/src/math/x32/remainderl.s
index 79bf4fe..376ba0e 100644
--- a/src/math/x32/remainderl.s
+++ b/src/math/x32/remainderl.s
@@ -4,7 +4,7 @@ remainderl:
fldt 24(%esp)
fldt 8(%esp)
1: fprem1
- fstsw %ax
+ fnstsw %ax
testb $4,%ah
jnz 1b
fstp %st(1)
diff --git a/src/math/x86_64/fmodl.s b/src/math/x86_64/fmodl.s
index cd8d2b7..ea07b40 100644
--- a/src/math/x86_64/fmodl.s
+++ b/src/math/x86_64/fmodl.s
@@ -4,7 +4,7 @@ fmodl:
fldt 24(%rsp)
fldt 8(%rsp)
1: fprem
- fstsw %ax
+ fnstsw %ax
testb $4,%ah
jnz 1b
fstp %st(1)
diff --git a/src/math/x86_64/remainderl.s b/src/math/x86_64/remainderl.s
index 2c337cf..cb3857b 100644
--- a/src/math/x86_64/remainderl.s
+++ b/src/math/x86_64/remainderl.s
@@ -4,7 +4,7 @@ remainderl:
fldt 24(%rsp)
fldt 8(%rsp)
1: fprem1
- fstsw %ax
+ fnstsw %ax
testb $4,%ah
jnz 1b
fstp %st(1)
--
2.2.0
|
