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authorRich Felker <dalias@aerifal.cx>2012-03-18 17:09:34 -0400
committerRich Felker <dalias@aerifal.cx>2012-03-18 17:09:34 -0400
commitb935147761d1770bb115f09f8c28ddb4d36e1236 (patch)
treeb96d46d662c717fffb0f0364e3cd07f009a06af1 /src/math/x86_64
parent8d9e948652eb8381f1f376cbd0c9bc5e2947d150 (diff)
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assembly optimizations for fmod/remainder functions
Diffstat (limited to 'src/math/x86_64')
-rw-r--r--src/math/x86_64/fmodl.s11
-rw-r--r--src/math/x86_64/remainderl.s11
2 files changed, 22 insertions, 0 deletions
diff --git a/src/math/x86_64/fmodl.s b/src/math/x86_64/fmodl.s
new file mode 100644
index 00000000..ca81e60c
--- /dev/null
+++ b/src/math/x86_64/fmodl.s
@@ -0,0 +1,11 @@
+.global fmodl
+.type fmodl,@function
+fmodl:
+	fldt 24(%rsp)
+	fldt 8(%rsp)
+1:	fprem
+	fstsw %ax
+	sahf
+	jp 1b
+	fstp %st(1)
+	ret
diff --git a/src/math/x86_64/remainderl.s b/src/math/x86_64/remainderl.s
new file mode 100644
index 00000000..75c12374
--- /dev/null
+++ b/src/math/x86_64/remainderl.s
@@ -0,0 +1,11 @@
+.global remainderl
+.type remainderl,@function
+remainderl:
+	fldt 24(%rsp)
+	fldt 8(%rsp)
+1:	fprem1
+	fstsw %ax
+	sahf
+	jp 1b
+	fstp %st(1)
+	ret