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authorUlrich Drepper <drepper@redhat.com>2010-09-02 23:36:25 -0700
committerUlrich Drepper <drepper@redhat.com>2010-09-02 23:36:25 -0700
commit0959ffc97b738c489087bcf45578c1580a87e66d (patch)
treeac76fbfa5e53376a579a3220a4a7873624e4a296 /sysdeps/x86_64/sub_n.S
parentece298407076558531796450af39199aa0b34bef (diff)
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Update x86-64 mpn routines from GMP 5.0.1.
Diffstat (limited to 'sysdeps/x86_64/sub_n.S')
-rw-r--r--sysdeps/x86_64/sub_n.S28
1 files changed, 5 insertions, 23 deletions
diff --git a/sysdeps/x86_64/sub_n.S b/sysdeps/x86_64/sub_n.S
index 48e1a2e0f4..60c15fc3e1 100644
--- a/sysdeps/x86_64/sub_n.S
+++ b/sysdeps/x86_64/sub_n.S
@@ -1,6 +1,6 @@
-/* AMD64 __mpn_sub_n -- Add two limb vectors of the same length > 0 and store
+/* x86-64 __mpn_sub_n -- Add two limb vectors of the same length > 0 and store
sum in a third limb vector.
- Copyright (C) 2004 Free Software Foundation, Inc.
+ Copyright (C) 2006, 2007 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
The GNU MP Library is free software; you can redistribute it and/or modify
@@ -18,25 +18,7 @@
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA. */
-#include "sysdep.h"
-#include "asm-syntax.h"
+#define func __mpn_sub_n
+#define ADCSBB sbb
- .text
-ENTRY (__mpn_sub_n)
- leaq (%rsi,%rcx,8), %rsi
- leaq (%rdi,%rcx,8), %rdi
- leaq (%rdx,%rcx,8), %rdx
- negq %rcx
- xorl %eax, %eax # clear cy
- .p2align 2
-L(loop):
- movq (%rsi,%rcx,8), %rax
- movq (%rdx,%rcx,8), %r10
- sbbq %r10, %rax
- movq %rax, (%rdi,%rcx,8)
- incq %rcx
- jne L(loop)
- movq %rcx, %rax # zero %rax
- adcq %rax, %rax
- ret
-END (__mpn_sub_n)
+#include "add_n.S"