diff options
Diffstat (limited to 'sysdeps/i386/sub_n.S')
| -rw-r--r-- | sysdeps/i386/sub_n.S | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/sysdeps/i386/sub_n.S b/sysdeps/i386/sub_n.S index 64d2c25293..e18a70885b 100644 --- a/sysdeps/i386/sub_n.S +++ b/sysdeps/i386/sub_n.S @@ -1,7 +1,7 @@ /* i80386 __mpn_sub_n -- Add two limb vectors of the same length > 0 and store sum in a third limb vector. -Copyright (C) 1992, 1994 Free Software Foundation, Inc. +Copyright (C) 1992, 1994, 1995 Free Software Foundation, Inc. This file is part of the GNU MP Library. @@ -37,10 +37,10 @@ C_SYMBOL_NAME(__mpn_sub_n:) pushl %edi pushl %esi - movl 12(%esp),%edi /* res_ptr */ - movl 16(%esp),%esi /* s1_ptr */ - movl 20(%esp),%edx /* s2_ptr */ - movl 24(%esp),%ecx /* size */ + movl 12(%esp),%edi /* res_ptr */ + movl 16(%esp),%esi /* s1_ptr */ + movl 20(%esp),%edx /* s2_ptr */ + movl 24(%esp),%ecx /* size */ movl %ecx,%eax shrl $3,%ecx /* compute count for unrolled loop */ @@ -54,14 +54,18 @@ C_SYMBOL_NAME(__mpn_sub_n:) subl %eax,%edx /* ... enter the loop */ shrl $2,%eax /* restore previous value */ #ifdef PIC - call here -here: leal (Loop - 3 - here)(%eax,%eax,8),%eax - addl %eax,(%esp) - ret +/* Calculate start address in loop for PIC. Due to limitations in some + assemblers, Loop-L0-3 cannot be put into the leal */ + call L0 +L0: leal (%eax,%eax,8),%eax + addl (%esp),%eax + addl $(Loop-L0-3),%eax + addl $4,%esp #else - leal (Loop - 3)(%eax,%eax,8),%eax /* calc start addr in loop */ - jmp *%eax /* jump into loop */ +/* Calculate start address in loop for non-PIC. */ + leal (Loop - 3)(%eax,%eax,8),%eax #endif + jmp *%eax /* jump into loop */ ALIGN (3) Loop: movl (%esi),%eax sbbl (%edx),%eax |