* sysdeps/i386/bp-asm.h: New file.
* sysdeps/i386/__longjmp.S: Define & use symbolic argument stack offsets. Add ENTER/LEAVE macros for optionally maintaining frame-pointer chain when debugging. * sysdeps/i386/add_n.S: Likewise. * sysdeps/i386/addmul_1.S: Likewise. * sysdeps/i386/lshift.S: Likewise. * sysdeps/i386/memchr.S: Likewise. * sysdeps/i386/memcmp.S: Likewise. * sysdeps/i386/mul_1.S: Likewise. * sysdeps/i386/rawmemchr.S: Likewise. * sysdeps/i386/rshift.S: Likewise. * sysdeps/i386/stpcpy.S: Likewise. * sysdeps/i386/stpncpy.S: Likewise. * sysdeps/i386/strchr.S: Likewise. * sysdeps/i386/strchrnul.S: Likewise. * sysdeps/i386/strcspn.S: Likewise. * sysdeps/i386/strpbrk.S: Likewise. * sysdeps/i386/strrchr.S: Likewise. * sysdeps/i386/strspn.S: Likewise. * sysdeps/i386/strtok.S: Likewise. * sysdeps/i386/sub_n.S: Likewise. * sysdeps/i386/submul_1.S: Likewise. * sysdeps/i386/elf/setjmp.S: Likewise. * sysdeps/i386/i486/strcat.S: Likewise. * sysdeps/i386/i486/strlen.S: Likewise. * sysdeps/i386/i586/add_n.S: Likewise. * sysdeps/i386/i586/lshift.S: Likewise. * sysdeps/i386/i586/memcpy.S: Likewise. * sysdeps/i386/i586/memset.S: Likewise. * sysdeps/i386/i586/rshift.S: Likewise. * sysdeps/i386/i586/strchr.S: Likewise. * sysdeps/i386/i586/strcpy.S: Likewise. * sysdeps/i386/i586/strlen.S: Likewise. * sysdeps/i386/i586/sub_n.S: Likewise. * sysdeps/i386/i686/add_n.S: Likewise. * sysdeps/i386/i686/memcpy.S: Likewise. * sysdeps/i386/i686/mempcpy.S: Likewise. * sysdeps/i386/i686/memset.S: Likewise. * sysdeps/i386/i686/strcmp.S: Likewise. 2000-06-08 Greg McGary <greg@mcgary.org> * sysdeps/i386/bp-asm.h: New file. * sysdeps/i386/__longjmp.S: Define & use symbolic argument stack offsets. Add ENTER/LEAVE macros for optionally maintaining frame-pointer chain when debugging. * sysdeps/i386/add_n.S: Likewise. * sysdeps/i386/addmul_1.S: Likewise. * sysdeps/i386/lshift.S: Likewise. * sysdeps/i386/memchr.S: Likewise. * sysdeps/i386/memcmp.S: Likewise. * sysdeps/i386/mul_1.S: Likewise. * sysdeps/i386/rawmemchr.S: Likewise. * sysdeps/i386/rshift.S: Likewise. * sysdeps/i386/stpcpy.S: Likewise. * sysdeps/i386/stpncpy.S: Likewise. * sysdeps/i386/strchr.S: Likewise. * sysdeps/i386/strchrnul.S: Likewise. * sysdeps/i386/strcspn.S: Likewise. * sysdeps/i386/strpbrk.S: Likewise. * sysdeps/i386/strrchr.S: Likewise. * sysdeps/i386/strspn.S: Likewise. * sysdeps/i386/strtok.S: Likewise. * sysdeps/i386/sub_n.S: Likewise. * sysdeps/i386/submul_1.S: Likewise. * sysdeps/i386/elf/setjmp.S: Likewise. * sysdeps/i386/i486/strcat.S: Likewise. * sysdeps/i386/i486/strlen.S: Likewise. * sysdeps/i386/i586/add_n.S: Likewise. * sysdeps/i386/i586/lshift.S: Likewise. * sysdeps/i386/i586/memcpy.S: Likewise. * sysdeps/i386/i586/memset.S: Likewise. * sysdeps/i386/i586/rshift.S: Likewise. * sysdeps/i386/i586/strchr.S: Likewise. * sysdeps/i386/i586/strcpy.S: Likewise. * sysdeps/i386/i586/strlen.S: Likewise. * sysdeps/i386/i586/sub_n.S: Likewise. * sysdeps/i386/i686/add_n.S: Likewise. * sysdeps/i386/i686/memcpy.S: Likewise. * sysdeps/i386/i686/mempcpy.S: Likewise. * sysdeps/i386/i686/memset.S: Likewise. * sysdeps/i386/i686/strcmp.S: Likewise.
This commit is contained in:
Greg McGary
parent
a40fb915f8
commit
3f02f778cd
43
ChangeLog
43
ChangeLog
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@ -1,3 +1,46 @@
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2000-06-08 Greg McGary <greg@mcgary.org>
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* sysdeps/i386/bp-asm.h: New file.
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* sysdeps/i386/__longjmp.S: Define & use symbolic argument stack
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offsets. Add ENTER/LEAVE macros for optionally maintaining
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frame-pointer chain when debugging.
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* sysdeps/i386/add_n.S: Likewise.
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* sysdeps/i386/addmul_1.S: Likewise.
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* sysdeps/i386/lshift.S: Likewise.
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* sysdeps/i386/memchr.S: Likewise.
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* sysdeps/i386/memcmp.S: Likewise.
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* sysdeps/i386/mul_1.S: Likewise.
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* sysdeps/i386/rawmemchr.S: Likewise.
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* sysdeps/i386/rshift.S: Likewise.
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* sysdeps/i386/stpcpy.S: Likewise.
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* sysdeps/i386/stpncpy.S: Likewise.
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* sysdeps/i386/strchr.S: Likewise.
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* sysdeps/i386/strchrnul.S: Likewise.
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* sysdeps/i386/strcspn.S: Likewise.
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* sysdeps/i386/strpbrk.S: Likewise.
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* sysdeps/i386/strrchr.S: Likewise.
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* sysdeps/i386/strspn.S: Likewise.
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* sysdeps/i386/strtok.S: Likewise.
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* sysdeps/i386/sub_n.S: Likewise.
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* sysdeps/i386/submul_1.S: Likewise.
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* sysdeps/i386/elf/setjmp.S: Likewise.
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* sysdeps/i386/i486/strcat.S: Likewise.
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* sysdeps/i386/i486/strlen.S: Likewise.
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* sysdeps/i386/i586/add_n.S: Likewise.
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* sysdeps/i386/i586/lshift.S: Likewise.
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* sysdeps/i386/i586/memcpy.S: Likewise.
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* sysdeps/i386/i586/memset.S: Likewise.
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* sysdeps/i386/i586/rshift.S: Likewise.
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* sysdeps/i386/i586/strchr.S: Likewise.
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* sysdeps/i386/i586/strcpy.S: Likewise.
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* sysdeps/i386/i586/strlen.S: Likewise.
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* sysdeps/i386/i586/sub_n.S: Likewise.
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* sysdeps/i386/i686/add_n.S: Likewise.
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* sysdeps/i386/i686/memcpy.S: Likewise.
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* sysdeps/i386/i686/mempcpy.S: Likewise.
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* sysdeps/i386/i686/memset.S: Likewise.
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* sysdeps/i386/i686/strcmp.S: Likewise.
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2000-06-08 Ulrich Drepper <drepper@redhat.com>
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* sysdeps/unix/sysv/linux/getdtsz.c: New file.
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@ -1,5 +1,5 @@
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/* longjmp for i386.
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Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
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Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -21,10 +21,19 @@
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#define _ASM
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#define _SETJMP_H
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#include <bits/setjmp.h>
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#include <bp-asm.h>
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#define PARMS LINKAGE /* no space for saved regs */
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#define JBUF PARMS
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#define VAL JBUF+PTR_SIZE
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ENTRY (__longjmp)
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movl 4(%esp), %ecx /* User's jmp_buf in %ecx. */
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movl 8(%esp), %eax /* Second argument is return value. */
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ENTER
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movl JBUF(%esp), %ecx /* User's jmp_buf in %ecx. */
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LEAVE
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movl VAL(%esp), %eax /* Second argument is return value. */
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/* Save the return address now. */
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movl (JB_PC*4)(%ecx), %edx
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/* Restore registers. */
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@ -1,6 +1,6 @@
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/* Add two limb vectors of the same length > 0 and store sum in a third
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limb vector.
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Copyright (C) 1992, 94, 95, 97, 98 Free Software Foundation, Inc.
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Copyright (C) 1992, 94, 95, 97, 98, 2000 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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@ -18,26 +18,27 @@
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA. */
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/*
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INPUT PARAMETERS
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res_ptr (sp + 4)
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s1_ptr (sp + 8)
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s2_ptr (sp + 12)
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size (sp + 16)
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*/
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#include "sysdep.h"
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#include "asm-syntax.h"
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#include "bp-asm.h"
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#define PARMS LINKAGE+8 /* space for 2 saved regs */
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#define RES PARMS
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#define S1 RES+PTR_SIZE
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#define S2 S1+PTR_SIZE
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#define SIZE S2+PTR_SIZE
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.text
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ENTRY(__mpn_add_n)
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ENTER
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pushl %edi
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pushl %esi
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movl 12(%esp),%edi /* res_ptr */
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movl 16(%esp),%esi /* s1_ptr */
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movl 20(%esp),%edx /* s2_ptr */
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movl 24(%esp),%ecx /* size */
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movl RES(%esp),%edi
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movl S1(%esp),%esi
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movl S2(%esp),%edx
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movl SIZE(%esp),%ecx
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movl %ecx,%eax
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shrl $3,%ecx /* compute count for unrolled loop */
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@ -99,5 +100,7 @@ L(oop): movl (%esi),%eax
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popl %esi
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popl %edi
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LEAVE
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ret
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END(__mpn_add_n)
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@ -1,6 +1,6 @@
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/* i80386 __mpn_addmul_1 -- Multiply a limb vector with a limb and add
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the result to a second limb vector.
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Copyright (C) 1992, 1994, 1997, 1998 Free Software Foundation, Inc.
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Copyright (C) 1992, 1994, 1997, 1998, 2000 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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@ -18,16 +18,15 @@
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA. */
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/*
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INPUT PARAMETERS
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res_ptr (sp + 4)
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s1_ptr (sp + 8)
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sizeP (sp + 12)
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s2_limb (sp + 16)
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*/
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#include "sysdep.h"
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#include "asm-syntax.h"
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#include "bp-asm.h"
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#define PARMS LINKAGE+16 /* space for 4 saved regs */
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#define RES PARMS
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#define S1 RES+PTR_SIZE
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#define SIZE S1+PTR_SIZE
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#define S2LIMB SIZE+4
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#define res_ptr edi
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#define s1_ptr esi
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@ -42,10 +41,10 @@ ENTRY(__mpn_addmul_1)
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INSN1(push,l ,R(ebx))
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INSN1(push,l ,R(ebp))
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INSN2(mov,l ,R(res_ptr),MEM_DISP(esp,20))
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INSN2(mov,l ,R(s1_ptr),MEM_DISP(esp,24))
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INSN2(mov,l ,R(sizeP),MEM_DISP(esp,28))
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INSN2(mov,l ,R(s2_limb),MEM_DISP(esp,32))
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INSN2(mov,l ,R(res_ptr),MEM_DISP(esp,RES))
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INSN2(mov,l ,R(s1_ptr),MEM_DISP(esp,S1))
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INSN2(mov,l ,R(sizeP),MEM_DISP(esp,SIZE))
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INSN2(mov,l ,R(s2_limb),MEM_DISP(esp,S2LIMB))
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INSN2(lea,l ,R(res_ptr),MEM_INDEX(res_ptr,sizeP,4))
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INSN2(lea,l ,R(s1_ptr),MEM_INDEX(s1_ptr,sizeP,4))
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/* Bounded-pointer definitions for x86 assembler.
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Copyright (C) 2000 Free Software Foundation, Inc.
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Contributed by Greg McGary <greg@mcgary.org>
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This file is part of the GNU C Library. Its master source is NOT part of
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the C library, however. The master source lives in the GNU MP Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef _bp_asm_h_
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# define _bp_asm_h_ 1
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# if __ASSEMBLER__
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# if __BOUNDED_POINTERS__
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/* Bounded pointers occupy three words. */
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# define PTR_SIZE 12
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/* Bounded pointer return values are passed back through a hidden
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argument that points to caller-allocate space. The hidden arg
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occupies one word on the stack. */
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# define RTN_SIZE 4
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/* Although the caller pushes the hidden arg, the callee is
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responsible for popping it. */
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# define RET_PTR ret $RTN_SIZE
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/* Maintain frame pointer chain in leaf assembler functions for the benefit
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of debugging stack traces when bounds violations occur. */
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# define ENTER pushl %ebp; movl %esp, %ebp
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# define LEAVE movl %ebp, %esp; popl %ebp
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/* Stack space overhead of procedure-call linkage: return address and
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frame pointer. */
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# define LINKAGE 8
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/* Int 5 is the "bound range" exception also raised by the "bound"
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instruction. */
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# define BOUNDS_VIOLATED int $5
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# define CHECK_BOUNDS_LOW(VAL_REG, BP_MEM) \
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cmpl 4+BP_MEM, VAL_REG; \
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jae 0f; /* continue if value >= low */ \
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BOUNDS_VIOLATED; \
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0:
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# define CHECK_BOUNDS_HIGH(VAL_REG, BP_MEM, Jcc) \
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cmpl 8+BP_MEM, VAL_REG; \
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Jcc 0f; /* continue if value < high */ \
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BOUNDS_VIOLATED; \
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0:
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# define CHECK_BOUNDS_BOTH(VAL_REG, BP_MEM) \
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cmpl 4+BP_MEM, VAL_REG; \
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jb 1f; /* die if value < low */ \
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cmpl 8+BP_MEM, VAL_REG; \
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jb 0f; /* continue if value < high */ \
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1: BOUNDS_VIOLATED; \
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0:
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# define CHECK_BOUNDS_BOTH_WIDE(VAL_REG, BP_MEM, LENGTH) \
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CHECK_BOUNDS_LOW(VAL_REG, BP_MEM); \
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addl LENGTH, VAL_REG; \
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cmpl 8+BP_MEM, VAL_REG; \
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jbe 0f; /* continue if value <= high */ \
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BOUNDS_VIOLATED; \
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0: subl LENGTH, VAL_REG /* restore value */
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/* Take bounds from BP_MEM and affix them to the pointer
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value in %eax, stuffing all into memory at RTN(%esp).
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Use %ecx as a scratch register. */
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# define RETURN_BOUNDED_POINTER(BP_MEM) \
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movl RTN(%esp), %ecx; \
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movl %eax, 0(%ecx); \
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movl 4+BP_MEM, %eax; \
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movl %eax, 4(%ecx); \
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movl 8+BP_MEM, %eax; \
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movl %eax, 8(%ecx)
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# define RETURN_NULL_BOUNDED_POINTER \
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movl RTN(%esp), %ecx; \
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movl %eax, 0(%ecx); \
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movl %eax, 4(%ecx); \
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movl %eax, 8(%ecx)
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/* The caller of __errno_location is responsible for allocating space
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for the three-word BP return-value and passing pushing its address
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as an implicit first argument. */
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# define PUSH_ERRNO_LOCATION_RETURN \
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subl $8, %esp; \
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subl $4, %esp; \
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pushl %esp
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/* __errno_location is responsible for popping the implicit first
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argument, but we must pop the space for the BP itself. We also
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dereference the return value in order to dig out the pointer value. */
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# define POP_ERRNO_LOCATION_RETURN \
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movl (%esp), %eax; \
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addl $4, %esp; \
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addl $8, %esp
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# else /* !__BOUNDED_POINTERS__ */
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/* Unbounded pointers occupy one word. */
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# define PTR_SIZE 4
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/* Unbounded pointer return values are passed back in the register %eax. */
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# define RTN_SIZE 0
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/* Use simple return instruction for unbounded pointer values. */
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# define RET_PTR ret
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/* Don't maintain frame pointer chain for leaf assembler functions. */
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# define ENTER
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# define LEAVE
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/* Stack space overhead of procedure-call linkage: return address only. */
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# define LINKAGE 4
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# define CHECK_BOUNDS_LOW(VAL_REG, BP_MEM)
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# define CHECK_BOUNDS_HIGH(VAL_REG, BP_MEM, Jcc)
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# define CHECK_BOUNDS_BOTH(VAL_REG, BP_MEM)
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# define CHECK_BOUNDS_BOTH_WIDE(VAL_REG, BP_MEM, LENGTH)
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# define RETURN_BOUNDED_POINTER(BP_MEM)
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# define RETURN_NULL_BOUNDED_POINTER
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# define PUSH_ERRNO_LOCATION_RETURN
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# define POP_ERRNO_LOCATION_RETURN
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# endif /* !__BOUNDED_POINTERS__ */
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# endif /* __ASSEMBLER__ */
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#endif /* _bp_asm_h_ */
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@ -21,6 +21,11 @@
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#define _ASM
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#define _SETJMP_H
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#include <bits/setjmp.h>
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#include "bp-asm.h"
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#define PARMS LINKAGE /* no space for saved regs */
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#define JBUF PARMS
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#define SGMSK JBUF+PRT_SIZE
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/* We include the BSD entry points here as well but we make
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them weak. */
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@ -55,7 +60,7 @@ ENTRY (__sigsetjmp)
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movl %esi, (JB_SI*4)(%eax)
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movl %edi, (JB_DI*4)(%eax)
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movl %ebp, (JB_BP*4)(%eax)
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leal 4(%esp), %ecx /* Save SP as it will be after we return. */
|
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leal JBUF(%esp), %ecx /* Save SP as it will be after we return. */
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movl %ecx, (JB_SP*4)(%eax)
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movl 0(%esp), %ecx /* Save PC we are returning to now. */
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movl %ecx, (JB_PC*4)(%eax)
|
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|
|
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|
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@ -1,6 +1,6 @@
|
|||
/* strcat(dest, src) -- Append SRC on the end of DEST.
|
||||
For Intel 80x86, x>=4.
|
||||
Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
|
||||
Copyright (C) 1994, 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>.
|
||||
Optimised a little by Alan Modra <Alan@SPRI.Levels.UniSA.Edu.Au>
|
||||
|
|
@ -22,19 +22,21 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
dest (sp + 4)
|
||||
src (sp + 8)
|
||||
*/
|
||||
#define PARMS LINKAGE+4 /* space for 1 saved reg */
|
||||
#define RTN PARMS
|
||||
#define DEST RTN+RTN_SIZE
|
||||
#define SRC DEST+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY (strcat)
|
||||
ENTER
|
||||
|
||||
pushl %edi /* Save callee-safe register. */
|
||||
|
||||
movl 12(%esp), %ecx /* load source pointer */
|
||||
movl 8(%esp), %edx /* load destination pointer */
|
||||
movl DEST(%esp), %edx
|
||||
movl SRC(%esp), %ecx
|
||||
|
||||
testb $0xff, (%ecx) /* Is source string empty? */
|
||||
jz L(8) /* yes => return */
|
||||
|
|
@ -254,8 +256,9 @@ L(9): movb %al, (%ecx,%edx) /* store first byte of last word */
|
|||
|
||||
movb %ah, 3(%ecx,%edx) /* store fourth byte of last word */
|
||||
|
||||
L(8): movl 8(%esp), %eax /* start address of destination is result */
|
||||
L(8): movl DEST(%esp), %eax /* start address of destination is result */
|
||||
popl %edi /* restore saved register */
|
||||
|
||||
ret
|
||||
LEAVE
|
||||
RET_PTR
|
||||
END (strcat)
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/* strlen(str) -- determine the length of the string STR.
|
||||
Optimized for Intel 80x86, x>=4.
|
||||
Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
|
||||
Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 2000 Free Software Foundation, Inc.
|
||||
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
|
|
@ -21,15 +21,16 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
str (sp + 4)
|
||||
*/
|
||||
#define PARMS LINKAGE /* no space for saved regs */
|
||||
#define STR PARMS
|
||||
|
||||
.text
|
||||
ENTRY (strlen)
|
||||
movl 4(%esp), %ecx /* get string pointer */
|
||||
ENTER
|
||||
|
||||
movl STR(%esp), %ecx
|
||||
movl %ecx, %eax /* duplicate it */
|
||||
|
||||
andl $3, %ecx /* mask alignment bits */
|
||||
|
|
@ -127,7 +128,8 @@ L(3): testb %cl, %cl /* is first byte NUL? */
|
|||
jz L(2) /* yes => return pointer */
|
||||
incl %eax /* increment pointer */
|
||||
|
||||
L(2): subl 4(%esp), %eax /* compute difference to string start */
|
||||
L(2): subl STR(%esp), %eax /* compute difference to string start */
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
END (strlen)
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/* Pentium __mpn_add_n -- Add two limb vectors of the same length > 0 and store
|
||||
sum in a third limb vector.
|
||||
Copyright (C) 1992, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
|
||||
Copyright (C) 1992, 94, 95, 96, 97, 98, 2000 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
|
||||
|
|
@ -18,28 +18,29 @@
|
|||
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
|
||||
MA 02111-1307, USA. */
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS
|
||||
res_ptr (sp + 4)
|
||||
s1_ptr (sp + 8)
|
||||
s2_ptr (sp + 12)
|
||||
size (sp + 16)
|
||||
*/
|
||||
|
||||
#include "sysdep.h"
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
#define PARMS LINKAGE+16 /* space for 4 saved regs */
|
||||
#define RES PARMS
|
||||
#define S1 RES+PTR_SIZE
|
||||
#define S2 S1+PTR_SIZE
|
||||
#define SIZE S2+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY(__mpn_add_n)
|
||||
ENTER
|
||||
|
||||
pushl %edi
|
||||
pushl %esi
|
||||
pushl %ebx
|
||||
pushl %ebp
|
||||
|
||||
movl 20(%esp),%edi /* res_ptr */
|
||||
movl 24(%esp),%esi /* s1_ptr */
|
||||
movl 28(%esp),%ebp /* s2_ptr */
|
||||
movl 32(%esp),%ecx /* size */
|
||||
movl RES(%esp),%edi
|
||||
movl S1(%esp),%esi
|
||||
movl S2(%esp),%ebp
|
||||
movl SIZE(%esp),%ecx
|
||||
|
||||
movl (%ebp),%ebx
|
||||
|
||||
|
|
@ -123,5 +124,7 @@ L(end2):
|
|||
popl %ebx
|
||||
popl %esi
|
||||
popl %edi
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
END(__mpn_add_n)
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
/* Pentium optimized __mpn_lshift --
|
||||
Copyright (C) 1992, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
|
||||
Copyright (C) 1992, 94, 95, 96, 97, 98, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or modify
|
||||
|
|
@ -17,28 +17,29 @@
|
|||
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
|
||||
MA 02111-1307, USA. */
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS
|
||||
res_ptr (sp + 4)
|
||||
s_ptr (sp + 8)
|
||||
size (sp + 12)
|
||||
cnt (sp + 16)
|
||||
*/
|
||||
|
||||
#include "sysdep.h"
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
.text
|
||||
#define PARMS LINKAGE+16 /* space for 4 saved regs */
|
||||
#define RES PARMS
|
||||
#define S RES+PTR_SIZE
|
||||
#define SIZE S+PTR_SIZE
|
||||
#define CNT SIZE+4
|
||||
|
||||
.text
|
||||
ENTRY(__mpn_lshift)
|
||||
ENTER
|
||||
|
||||
pushl %edi
|
||||
pushl %esi
|
||||
pushl %ebx
|
||||
pushl %ebp
|
||||
|
||||
movl 20(%esp),%edi /* res_ptr */
|
||||
movl 24(%esp),%esi /* s_ptr */
|
||||
movl 28(%esp),%ebp /* size */
|
||||
movl 32(%esp),%ecx /* cnt */
|
||||
movl RES(%esp),%edi
|
||||
movl S(%esp),%esi
|
||||
movl SIZE(%esp),%ebp
|
||||
movl CNT(%esp),%ecx
|
||||
|
||||
/* We can use faster code for shift-by-1 under certain conditions. */
|
||||
cmp $1,%ecx
|
||||
|
|
@ -127,6 +128,8 @@ L(end2):
|
|||
popl %ebx
|
||||
popl %esi
|
||||
popl %edi
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
|
||||
/* We loop from least significant end of the arrays, which is only
|
||||
|
|
@ -216,5 +219,7 @@ L(L1): movl %edx,(%edi) /* store last limb */
|
|||
popl %ebx
|
||||
popl %esi
|
||||
popl %edi
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
END(__mpn_lshift)
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
/* Highly optimized version for i586.
|
||||
Copyright (C) 1997 Free Software Foundation, Inc.
|
||||
Copyright (C) 1997, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
|
||||
|
||||
|
|
@ -20,23 +20,31 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
dst (sp + 4)
|
||||
src (sp + 8)
|
||||
len (sp + 12)
|
||||
*/
|
||||
/* BEWARE: `#ifdef memset' means that memset is redefined as `bzero' */
|
||||
#define BCOPY_P (defined memcpy)
|
||||
|
||||
#define PARMS LINKAGE+8 /* space for 2 saved regs */
|
||||
#if BCOPY_P
|
||||
# define DEST PARMS
|
||||
#else
|
||||
# define RTN PARMS
|
||||
# define DEST RTN+RTN_SIZE
|
||||
#endif
|
||||
#define SRC DEST+PTR_SIZE
|
||||
#define LEN SRC+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY (memcpy)
|
||||
ENTER
|
||||
|
||||
pushl %edi
|
||||
pushl %esi
|
||||
|
||||
movl 12(%esp), %edi /* dst */
|
||||
movl 16(%esp), %esi /* src */
|
||||
movl 20(%esp), %ecx /* len */
|
||||
movl DEST(%esp), %edi
|
||||
movl SRC(%esp), %esi
|
||||
movl LEN(%esp), %ecx
|
||||
movl %edi, %eax
|
||||
|
||||
/* We need this in any case. */
|
||||
|
|
@ -91,18 +99,23 @@ L(3): movl 28(%edi), %edx
|
|||
|
||||
/* Correct extra loop counter modification. */
|
||||
L(2): addl $32, %ecx
|
||||
#ifndef memcpy
|
||||
movl 12(%esp), %eax /* dst */
|
||||
#if !BCOPY_P
|
||||
movl DEST(%esp), %eax
|
||||
#endif
|
||||
|
||||
L(1): rep; movsb
|
||||
|
||||
#ifdef memcpy
|
||||
#if BCOPY_P
|
||||
movl %edi, %eax
|
||||
#endif
|
||||
|
||||
popl %esi
|
||||
popl %edi
|
||||
|
||||
LEAVE
|
||||
#if BCOPY_P
|
||||
ret
|
||||
#else
|
||||
RET_PTR
|
||||
#endif
|
||||
END (memcpy)
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/* memset/bzero -- set memory area to CH/0
|
||||
Highly optimized version for ix86, x>=5.
|
||||
Copyright (C) 1996, 1997 Free Software Foundation, Inc.
|
||||
Copyright (C) 1996, 1997, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Torbjorn Granlund, <tege@matematik.su.se>
|
||||
|
||||
|
|
@ -21,27 +21,33 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
(memset) (bzero)
|
||||
dst (sp + 4) dst (sp + 4)
|
||||
ch (sp + 8) len (sp + 8)
|
||||
len (sp + 12)
|
||||
*/
|
||||
/* BEWARE: `#ifdef memset' means that memset is redefined as `bzero' */
|
||||
#define BZERO_P (defined memset)
|
||||
|
||||
#define PARMS LINKAGE+4 /* space for 1 saved reg */
|
||||
#define RTN PARMS
|
||||
#define DEST RTN+RTN_SIZE
|
||||
#if BZERO_P
|
||||
# define LEN DEST+PTR_SIZE
|
||||
#else
|
||||
# define CHR DEST+PTR_SIZE
|
||||
# define LEN CHR+4
|
||||
#endif
|
||||
|
||||
.text
|
||||
ENTRY (memset)
|
||||
ENTER
|
||||
|
||||
pushl %edi
|
||||
|
||||
movl 8(%esp), %edi /* destination pointer */
|
||||
#ifdef memset
|
||||
movl DEST(%esp), %edi
|
||||
movl LEN(%esp), %edx
|
||||
#if BZERO_P
|
||||
xorl %eax, %eax /* we fill with 0 */
|
||||
movl 12(%esp), %edx /* size (in 8-bit words) */
|
||||
#else
|
||||
movb 12(%esp), %al /* use CH to fill */
|
||||
movl 16(%esp), %edx /* size (in 8-bit words) */
|
||||
movb CHR(%esp), %al
|
||||
|
||||
movb %al, %ah
|
||||
movl %eax, %ecx
|
||||
|
|
@ -93,11 +99,16 @@ L(2): shrl $2, %ecx /* convert byte count to longword count */
|
|||
rep
|
||||
stosb
|
||||
|
||||
#if !BZERO_P
|
||||
/* Load result (only if used as memset). */
|
||||
#ifndef memset
|
||||
movl 8(%esp), %eax
|
||||
movl DEST(%esp), %eax
|
||||
#endif
|
||||
popl %edi
|
||||
|
||||
LEAVE
|
||||
#if BZERO_P
|
||||
ret
|
||||
#else
|
||||
RET_PTR
|
||||
#endif
|
||||
END (memset)
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
/* Pentium optimized __mpn_rshift --
|
||||
Copyright (C) 1992, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
|
||||
Copyright (C) 1992, 94, 95, 96, 97, 98, 2000 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
|
||||
|
|
@ -17,28 +17,29 @@
|
|||
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
|
||||
MA 02111-1307, USA. */
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS
|
||||
res_ptr (sp + 4)
|
||||
s_ptr (sp + 8)
|
||||
size (sp + 12)
|
||||
cnt (sp + 16)
|
||||
*/
|
||||
|
||||
#include "sysdep.h"
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
.text
|
||||
#define PARMS LINKAGE+16 /* space for 4 saved regs */
|
||||
#define RES PARMS
|
||||
#define S RES+PTR_SIZE
|
||||
#define SIZE S+PTR_SIZE
|
||||
#define CNT SIZE+4
|
||||
|
||||
.text
|
||||
ENTRY(__mpn_rshift)
|
||||
ENTER
|
||||
|
||||
pushl %edi
|
||||
pushl %esi
|
||||
pushl %ebx
|
||||
pushl %ebp
|
||||
|
||||
movl 20(%esp),%edi /* res_ptr */
|
||||
movl 24(%esp),%esi /* s_ptr */
|
||||
movl 28(%esp),%ebp /* size */
|
||||
movl 32(%esp),%ecx /* cnt */
|
||||
movl RES(%esp),%edi
|
||||
movl S(%esp),%esi
|
||||
movl SIZE(%esp),%ebp
|
||||
movl CNT(%esp),%ecx
|
||||
|
||||
/* We can use faster code for shift-by-1 under certain conditions. */
|
||||
cmp $1,%ecx
|
||||
|
|
@ -124,6 +125,8 @@ L(end2):
|
|||
popl %ebx
|
||||
popl %esi
|
||||
popl %edi
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
|
||||
/* We loop from least significant end of the arrays, which is only
|
||||
|
|
@ -216,5 +219,7 @@ L(L1): movl %edx,(%edi) /* store last limb */
|
|||
popl %ebx
|
||||
popl %esi
|
||||
popl %edi
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
END(__mpn_rshift)
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/* Find character CH in a NUL terminated string.
|
||||
Highly optimized version for ix85, x>=5.
|
||||
Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
|
||||
Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>.
|
||||
|
||||
|
|
@ -21,6 +21,7 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/* This version is especially optimized for the i586 (and following?)
|
||||
processors. This is mainly done by using the two pipelines. The
|
||||
|
|
@ -35,22 +36,23 @@
|
|||
/* The magic value which is used throughout in the whole code. */
|
||||
#define magic 0xfefefeff
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
str (sp + 4)
|
||||
ch (sp + 8)
|
||||
*/
|
||||
#define PARMS LINKAGE+16 /* space for 4 saved regs */
|
||||
#define RTN PARMS
|
||||
#define STR RTN+RTN_SIZE
|
||||
#define CHR STR+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY (strchr)
|
||||
ENTER
|
||||
|
||||
pushl %edi /* Save callee-safe registers. */
|
||||
pushl %esi
|
||||
|
||||
pushl %ebx
|
||||
pushl %ebp
|
||||
|
||||
movl 20(%esp), %eax /* get string pointer */
|
||||
movl 24(%esp), %edx /* get character we are looking for */
|
||||
movl STR(%esp), %eax
|
||||
movl CHR(%esp), %edx
|
||||
|
||||
movl %eax, %edi /* duplicate string pointer for later */
|
||||
xorl %ecx, %ecx /* clear %ecx */
|
||||
|
|
@ -283,7 +285,8 @@ L(2): popl %ebp /* restore saved registers */
|
|||
popl %esi
|
||||
popl %edi
|
||||
|
||||
ret
|
||||
LEAVE
|
||||
RET_PTR
|
||||
|
||||
/* We know there is a NUL byte in the word. But we have to test
|
||||
whether there is an C byte before it in the word. */
|
||||
|
|
@ -326,7 +329,8 @@ L(3): xorl %eax, %eax /* set return value = NULL */
|
|||
popl %esi
|
||||
popl %edi
|
||||
|
||||
ret
|
||||
LEAVE
|
||||
RET_PTR
|
||||
END (strchr)
|
||||
|
||||
#undef index
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
/* strcpy/stpcpy implementation for i586.
|
||||
Copyright (C) 1997 Free Software Foundation, Inc.
|
||||
Copyright (C) 1997, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
|
||||
|
||||
|
|
@ -20,6 +20,12 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
#define PARMS LINKAGE+12 /* space for 3 saved regs */
|
||||
#define RTN PARMS
|
||||
#define DEST RTN+RTN_SIZE
|
||||
#define SRC DEST+PTR_SIZE
|
||||
|
||||
#ifndef USE_AS_STPCPY
|
||||
# define STRCPY strcpy
|
||||
|
|
@ -29,12 +35,14 @@
|
|||
|
||||
.text
|
||||
ENTRY(STRCPY)
|
||||
ENTER
|
||||
|
||||
pushl %edi
|
||||
pushl %esi
|
||||
pushl %ebx
|
||||
|
||||
movl 16(%esp), %edi
|
||||
movl 20(%esp), %esi
|
||||
movl DEST(%esp), %edi
|
||||
movl SRC(%esp), %esi
|
||||
|
||||
xorl %eax, %eax
|
||||
leal -1(%esi), %ecx
|
||||
|
|
@ -136,12 +144,13 @@ L(end): movb %ah, (%edi)
|
|||
L(end2):
|
||||
#ifdef USE_AS_STPCPY
|
||||
movl %edi, %eax
|
||||
#else
|
||||
movl DEST(%esp), %eax
|
||||
#endif
|
||||
popl %ebx
|
||||
popl %esi
|
||||
popl %edi
|
||||
#ifndef USE_AS_STPCPY
|
||||
movl 4(%esp), %eax
|
||||
#endif
|
||||
ret
|
||||
|
||||
LEAVE
|
||||
RET_PTR
|
||||
END(STRCPY)
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/* strlen -- Compute length og NUL terminated string.
|
||||
Highly optimized version for ix86, x>=5.
|
||||
Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
|
||||
Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>.
|
||||
|
||||
|
|
@ -21,6 +21,7 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/* This version is especially optimized for the i586 (and following?)
|
||||
processors. This is mainly done by using the two pipelines. The
|
||||
|
|
@ -35,14 +36,14 @@
|
|||
/* The magic value which is used throughout in the whole code. */
|
||||
#define magic 0xfefefeff
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
str (sp + 4)
|
||||
*/
|
||||
#define PARMS LINKAGE /* no space for saved regs */
|
||||
#define STR PARMS
|
||||
|
||||
.text
|
||||
ENTRY(strlen)
|
||||
movl 4(%esp), %eax /* get string pointer */
|
||||
ENTER
|
||||
|
||||
movl STR(%esp), %eax
|
||||
movl $3, %edx /* load mask (= 3) */
|
||||
|
||||
andl %eax, %edx /* separate last two bits of address */
|
||||
|
|
@ -176,9 +177,9 @@ L(3): subl $4, %eax /* correct too early pointer increment */
|
|||
|
||||
incl %eax /* increment pointer */
|
||||
|
||||
L(2): subl 4(%esp), %eax /* now compute the length as difference
|
||||
L(2): subl STR(%esp), %eax /* now compute the length as difference
|
||||
between start and terminating NUL
|
||||
character */
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
END (strlen)
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/* Pentium __mpn_sub_n -- Subtract two limb vectors of the same length > 0
|
||||
and store difference in a third limb vector.
|
||||
Copyright (C) 1992, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
|
||||
Copyright (C) 1992, 94, 95, 96, 97, 98, 2000 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
|
||||
|
|
@ -18,28 +18,29 @@
|
|||
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
|
||||
MA 02111-1307, USA. */
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS
|
||||
res_ptr (sp + 4)
|
||||
s1_ptr (sp + 8)
|
||||
s2_ptr (sp + 12)
|
||||
size (sp + 16)
|
||||
*/
|
||||
|
||||
#include "sysdep.h"
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
#define PARMS LINKAGE+16 /* space for 4 saved regs */
|
||||
#define RES PARMS
|
||||
#define S1 RES+PTR_SIZE
|
||||
#define S2 S1+PTR_SIZE
|
||||
#define SIZE S2+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY(__mpn_sub_n)
|
||||
ENTER
|
||||
|
||||
pushl %edi
|
||||
pushl %esi
|
||||
pushl %ebx
|
||||
pushl %ebp
|
||||
|
||||
movl 20(%esp),%edi /* res_ptr */
|
||||
movl 24(%esp),%esi /* s1_ptr */
|
||||
movl 28(%esp),%ebp /* s2_ptr */
|
||||
movl 32(%esp),%ecx /* size */
|
||||
movl RES(%esp),%edi
|
||||
movl S1(%esp),%esi
|
||||
movl S2(%esp),%ebp
|
||||
movl SIZE(%esp),%ecx
|
||||
|
||||
movl (%ebp),%ebx
|
||||
|
||||
|
|
@ -123,5 +124,7 @@ L(end2):
|
|||
popl %ebx
|
||||
popl %esi
|
||||
popl %edi
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
END(__mpn_sub_n)
|
||||
|
|
|
|||
|
|
@ -18,16 +18,15 @@
|
|||
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
|
||||
MA 02111-1307, USA. */
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS
|
||||
res_ptr (sp + 4)
|
||||
s1_ptr (sp + 8)
|
||||
s2_ptr (sp + 12)
|
||||
size (sp + 16)
|
||||
*/
|
||||
|
||||
#include "sysdep.h"
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
#define PARMS LINKAGE+8 /* space for 2 saved regs */
|
||||
#define RES PARMS
|
||||
#define S1 RES+PTR_SIZE
|
||||
#define S2 S1+PTR_SIZE
|
||||
#define SIZE S2+PTR_SIZE
|
||||
|
||||
.text
|
||||
#ifdef PIC
|
||||
|
|
@ -35,13 +34,15 @@ L(1): addl (%esp), %eax
|
|||
ret
|
||||
#endif
|
||||
ENTRY(__mpn_add_n)
|
||||
ENTER
|
||||
|
||||
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 RES(%esp),%edi
|
||||
movl S1(%esp),%esi
|
||||
movl S2(%esp),%edx
|
||||
movl SIZE(%esp),%ecx
|
||||
|
||||
movl %ecx,%eax
|
||||
shrl $3,%ecx /* compute count for unrolled loop */
|
||||
|
|
@ -100,5 +101,7 @@ L(oop): movl (%esi),%eax
|
|||
|
||||
popl %esi
|
||||
popl %edi
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
END(__mpn_add_n)
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/* Copy memory block and return pointer to beginning of destination block
|
||||
For Intel 80x86, x>=6.
|
||||
This file is part of the GNU C Library.
|
||||
Copyright (C) 1999 Free Software Foundation, Inc.
|
||||
Copyright (C) 1999, 2000 Free Software Foundation, Inc.
|
||||
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
|
|
@ -21,20 +21,23 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/* memcpy:
|
||||
INPUT PARAMETER:
|
||||
dest (sp + 4)
|
||||
src (sp + 8)
|
||||
len (sp + 12)
|
||||
*/
|
||||
#define PARMS LINKAGE /* no space for saved regs */
|
||||
#define RTN PARMS
|
||||
#define DEST RTN+RTN_SIZE
|
||||
#define SRC DEST+PTR_SIZE
|
||||
#define LEN SRC+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY(memcpy)
|
||||
movl 12(%esp), %ecx
|
||||
ENTER
|
||||
|
||||
movl LEN(%esp), %ecx
|
||||
movl %edi, %eax
|
||||
movl 4(%esp), %edi
|
||||
movl DEST(%esp), %edi
|
||||
movl %esi, %edx
|
||||
movl 8(%esp), %esi
|
||||
movl SRC(%esp), %esi
|
||||
cld
|
||||
shrl $1, %ecx
|
||||
jnc 1f
|
||||
|
|
@ -46,6 +49,8 @@ ENTRY(memcpy)
|
|||
movsl
|
||||
movl %eax, %edi
|
||||
movl %edx, %esi
|
||||
movl 4(%esp), %eax
|
||||
ret
|
||||
movl DEST(%esp), %eax
|
||||
|
||||
LEAVE
|
||||
RET_PTR
|
||||
END(memcpy)
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/* Copy memory block and return pointer to following byte.
|
||||
For Intel 80x86, x>=6.
|
||||
This file is part of the GNU C Library.
|
||||
Copyright (C) 1998, 1999 Free Software Foundation, Inc.
|
||||
Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
|
||||
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
|
|
@ -21,20 +21,23 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/* mempcpy:
|
||||
INPUT PARAMETER:
|
||||
dest (sp + 4)
|
||||
src (sp + 8)
|
||||
len (sp + 12)
|
||||
*/
|
||||
#define PARMS LINKAGE /* no space for saved regs */
|
||||
#define RTN PARMS
|
||||
#define DEST RTN+RTN_SIZE
|
||||
#define SRC DEST+PTR_SIZE
|
||||
#define LEN SRC+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY(__mempcpy)
|
||||
movl 12(%esp), %ecx
|
||||
ENTER
|
||||
|
||||
movl LEN(%esp), %ecx
|
||||
movl %edi, %eax
|
||||
movl 4(%esp), %edi
|
||||
movl DEST(%esp), %edi
|
||||
movl %esi, %edx
|
||||
movl 8(%esp), %esi
|
||||
movl SRC(%esp), %esi
|
||||
cld
|
||||
shrl $1, %ecx
|
||||
jnc 1f
|
||||
|
|
@ -46,6 +49,8 @@ ENTRY(__mempcpy)
|
|||
movsl
|
||||
xchgl %edi, %eax
|
||||
movl %edx, %esi
|
||||
ret
|
||||
|
||||
LEAVE
|
||||
RET_PTR
|
||||
END(__mempcpy)
|
||||
weak_alias (__mempcpy, mempcpy)
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/* memset/bzero -- set memory area to CH/0
|
||||
Highly optimized version for ix86, x>=6.
|
||||
Copyright (C) 1999 Free Software Foundation, Inc.
|
||||
Copyright (C) 1999, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
|
||||
|
||||
|
|
@ -21,27 +21,34 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
(memset) (bzero)
|
||||
dst (sp + 4) dst (sp + 4)
|
||||
ch (sp + 8) len (sp + 8)
|
||||
len (sp + 12)
|
||||
*/
|
||||
/* BEWARE: `#ifdef memset' means that memset is redefined as `bzero' */
|
||||
#define BZERO_P (defined memset)
|
||||
|
||||
#define PARMS LINKAGE+4 /* space for 1 saved reg */
|
||||
#if BZERO_P
|
||||
# define DEST PARMS
|
||||
# define LEN DEST+PTR_SIZE
|
||||
#else
|
||||
# define RTN PARMS
|
||||
# define DEST RTN+RTN_SIZE
|
||||
# define CHR DEST+PTR_SIZE
|
||||
# define LEN CHR+4
|
||||
#endif
|
||||
|
||||
.text
|
||||
ENTRY (memset)
|
||||
ENTER
|
||||
|
||||
cld
|
||||
pushl %edi
|
||||
movl 8(%esp), %edx
|
||||
#ifdef memset
|
||||
movl 12(%esp), %ecx
|
||||
xorl %eax, %eax
|
||||
movl DEST(%esp), %edx
|
||||
movl LEN(%esp), %ecx
|
||||
#if BZERO_P
|
||||
xorl %eax, %eax /* fill with 0 */
|
||||
#else
|
||||
movzbl 12(%esp), %eax
|
||||
movl 16(%esp), %ecx
|
||||
movzbl CHR(%esp), %eax
|
||||
#endif
|
||||
jecxz 1f
|
||||
movl %edx, %edi
|
||||
|
|
@ -61,7 +68,7 @@ ENTRY (memset)
|
|||
2: movl %ecx, %edx
|
||||
shrl $2, %ecx
|
||||
andl $3, %edx
|
||||
#ifndef memset
|
||||
#if !BZERO_P
|
||||
imul $0x01010101, %eax
|
||||
#endif
|
||||
rep
|
||||
|
|
@ -71,9 +78,15 @@ ENTRY (memset)
|
|||
stosb
|
||||
|
||||
1:
|
||||
#ifndef memset
|
||||
movl 8(%esp), %eax
|
||||
#if !BZERO_P
|
||||
movl DEST(%esp), %eax
|
||||
#endif
|
||||
popl %edi
|
||||
|
||||
LEAVE
|
||||
#if BZERO_P
|
||||
ret
|
||||
#else
|
||||
RET_PTR
|
||||
#endif
|
||||
END (memset)
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
/* Highly optimized version for ix86, x>=6.
|
||||
Copyright (C) 1999 Free Software Foundation, Inc.
|
||||
Copyright (C) 1999, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
|
||||
|
||||
|
|
@ -20,29 +20,34 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
s1 (sp + 4)
|
||||
s2 (sp + 8)
|
||||
*/
|
||||
|
||||
#define PARMS LINKAGE /* no space for saved regs */
|
||||
#define STR1 PARMS
|
||||
#define STR2 STR1+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY (strcmp)
|
||||
movl 4(%esp), %ecx
|
||||
movl 8(%esp), %edx
|
||||
1: movb (%ecx), %al
|
||||
ENTER
|
||||
|
||||
movl STR1(%esp), %ecx
|
||||
movl STR2(%esp), %edx
|
||||
|
||||
L(oop): movb (%ecx), %al
|
||||
incl %ecx
|
||||
cmpb (%edx), %al
|
||||
jne 2f
|
||||
jne L(neq)
|
||||
incl %edx
|
||||
testb %al, %al
|
||||
jnz 1b
|
||||
jnz L(oop)
|
||||
|
||||
xorl %eax, %eax
|
||||
jmp 3f
|
||||
2: movl $1, %eax
|
||||
ja 3f
|
||||
jmp L(out)
|
||||
|
||||
L(neq): movl $1, %eax
|
||||
ja L(out)
|
||||
negl %eax
|
||||
3: ret
|
||||
|
||||
L(out): LEAVE
|
||||
ret
|
||||
END (strcmp)
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
/* i80386 __mpn_lshift --
|
||||
Copyright (C) 1992, 1994, 1997, 1998, 1999 Free Software Foundation, Inc.
|
||||
Copyright (C) 1992, 1994, 1997, 1998, 1999, 2000 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
|
||||
|
|
@ -17,27 +17,28 @@
|
|||
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
|
||||
MA 02111-1307, USA. */
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS
|
||||
res_ptr (sp + 4)
|
||||
s_ptr (sp + 8)
|
||||
size (sp + 12)
|
||||
cnt (sp + 16)
|
||||
*/
|
||||
|
||||
#include "sysdep.h"
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
#define PARMS LINKAGE+12 /* space for 3 saved regs */
|
||||
#define RES PARMS
|
||||
#define S RES+PTR_SIZE
|
||||
#define SIZE S+PTR_SIZE
|
||||
#define CNT SIZE+4
|
||||
|
||||
.text
|
||||
ENTRY(__mpn_lshift)
|
||||
ENTER
|
||||
|
||||
pushl %edi
|
||||
pushl %esi
|
||||
pushl %ebx
|
||||
|
||||
movl 16(%esp),%edi /* res_ptr */
|
||||
movl 20(%esp),%esi /* s_ptr */
|
||||
movl 24(%esp),%edx /* size */
|
||||
movl 28(%esp),%ecx /* cnt */
|
||||
movl RES(%esp),%edi
|
||||
movl S(%esp),%esi
|
||||
movl SIZE(%esp),%edx
|
||||
movl CNT(%esp),%ecx
|
||||
|
||||
subl $4,%esi /* adjust s_ptr */
|
||||
|
||||
|
|
@ -70,6 +71,8 @@ L(1): movl (%esi,%edx,4),%eax
|
|||
popl %ebx
|
||||
popl %esi
|
||||
popl %edi
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
|
||||
L(end): shll %cl,%ebx /* compute least significant limb */
|
||||
|
|
@ -78,5 +81,7 @@ L(end): shll %cl,%ebx /* compute least significant limb */
|
|||
popl %ebx
|
||||
popl %esi
|
||||
popl %edi
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
END(__mpn_lshift)
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/* memchr (str, ch, n) -- Return pointer to first occurrence of CH in STR less
|
||||
than N.
|
||||
/* memchr (str, chr, len) -- Return pointer to first occurrence of CHR in STR less
|
||||
than LEN.
|
||||
For Intel 80x86, x>=3.
|
||||
Copyright (C) 1994, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
|
||||
Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>
|
||||
Optimised a little by Alan Modra <Alan@SPRI.Levels.UniSA.Edu.Au>
|
||||
|
|
@ -32,32 +32,34 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
str (sp + 4)
|
||||
c (sp + 8)
|
||||
len (sp + 12)
|
||||
*/
|
||||
#define PARMS LINKAGE+8 /* space for 2 saved regs */
|
||||
#define RTN PARMS
|
||||
#define STR RTN+RTN_SIZE
|
||||
#define CHR STR+PTR_SIZE
|
||||
#define LEN CHR+4
|
||||
|
||||
.text
|
||||
ENTRY (memchr)
|
||||
ENTER
|
||||
|
||||
/* Save callee-safe registers used in this function. */
|
||||
pushl %esi
|
||||
pushl %edi
|
||||
|
||||
/* Load parameters into registers. */
|
||||
movl 12(%esp), %eax /* str: pointer to memory block. */
|
||||
movl 16(%esp), %edx /* c: byte we are looking for. */
|
||||
movl 20(%esp), %esi /* len: length of memory block. */
|
||||
movl STR(%esp), %eax /* str: pointer to memory block. */
|
||||
movl CHR(%esp), %edx /* c: byte we are looking for. */
|
||||
movl LEN(%esp), %esi /* len: length of memory block. */
|
||||
|
||||
/* If my must not test more than three characters test
|
||||
them one by one. This is especially true for 0. */
|
||||
cmpl $4, %esi
|
||||
jb L(3)
|
||||
|
||||
/* At the moment %edx contains C. What we need for the
|
||||
algorithm is C in all bytes of the dword. Avoid
|
||||
/* At the moment %edx contains CHR. What we need for the
|
||||
algorithm is CHR in all bytes of the dword. Avoid
|
||||
operations on 16 bit words because these require an
|
||||
prefix byte (and one more cycle). */
|
||||
movb %dl, %dh /* Now it is 0|0|c|c */
|
||||
|
|
@ -117,9 +119,9 @@ ENTRY (memchr)
|
|||
into bit 32 (=carry flag), so all of the hole bits will
|
||||
be changed.
|
||||
|
||||
3) But wait! Aren't we looking for C, not zero?
|
||||
3) But wait! Aren't we looking for CHR, not zero?
|
||||
Good point. So what we do is XOR LONGWORD with a longword,
|
||||
each of whose bytes is C. This turns each byte that is C
|
||||
each of whose bytes is CHR. This turns each byte that is CHR
|
||||
into a zero. */
|
||||
|
||||
|
||||
|
|
@ -152,7 +154,7 @@ L(1): movl (%eax), %ecx /* get word (= 4 bytes) in question */
|
|||
incl %edi /* add 1: if one carry bit was *not* set
|
||||
the addition will not result in 0. */
|
||||
|
||||
/* If at least one byte of the word is C we don't get 0 in %edi. */
|
||||
/* If at least one byte of the word is CHR we don't get 0 in %edi. */
|
||||
jnz L(8) /* found it => return pointer */
|
||||
|
||||
/* This process is unfolded four times for better performance.
|
||||
|
|
@ -169,7 +171,7 @@ L(1): movl (%eax), %ecx /* get word (= 4 bytes) in question */
|
|||
addl %ecx, %edi /* add the magic value to the word. We get
|
||||
carry bits reported for each byte which
|
||||
is *not* 0 */
|
||||
jnc L(7) /* highest byte is C => return pointer */
|
||||
jnc L(7) /* highest byte is CHR => return pointer */
|
||||
xorl %ecx, %edi /* ((word^charmask)+magic)^(word^charmask) */
|
||||
orl $0xfefefeff, %edi /* set all non-carry bits */
|
||||
incl %edi /* add 1: if one carry bit was *not* set
|
||||
|
|
@ -183,7 +185,7 @@ L(1): movl (%eax), %ecx /* get word (= 4 bytes) in question */
|
|||
addl %ecx, %edi /* add the magic value to the word. We get
|
||||
carry bits reported for each byte which
|
||||
is *not* 0 */
|
||||
jnc L(6) /* highest byte is C => return pointer */
|
||||
jnc L(6) /* highest byte is CHR => return pointer */
|
||||
xorl %ecx, %edi /* ((word^charmask)+magic)^(word^charmask) */
|
||||
orl $0xfefefeff, %edi /* set all non-carry bits */
|
||||
incl %edi /* add 1: if one carry bit was *not* set
|
||||
|
|
@ -197,7 +199,7 @@ L(1): movl (%eax), %ecx /* get word (= 4 bytes) in question */
|
|||
addl %ecx, %edi /* add the magic value to the word. We get
|
||||
carry bits reported for each byte which
|
||||
is *not* 0 */
|
||||
jnc L(5) /* highest byte is C => return pointer */
|
||||
jnc L(5) /* highest byte is CHR => return pointer */
|
||||
xorl %ecx, %edi /* ((word^charmask)+magic)^(word^charmask) */
|
||||
orl $0xfefefeff, %edi /* set all non-carry bits */
|
||||
incl %edi /* add 1: if one carry bit was *not* set
|
||||
|
|
@ -220,7 +222,7 @@ L(2): subl $16, %esi
|
|||
addl %ecx, %edi /* add the magic value to the word. We get
|
||||
carry bits reported for each byte which
|
||||
is *not* 0 */
|
||||
jnc L(8) /* highest byte is C => return pointer */
|
||||
jnc L(8) /* highest byte is CHR => return pointer */
|
||||
xorl %ecx, %edi /* ((word^charmask)+magic)^(word^charmask) */
|
||||
orl $0xfefefeff, %edi /* set all non-carry bits */
|
||||
incl %edi /* add 1: if one carry bit was *not* set
|
||||
|
|
@ -238,7 +240,7 @@ L(2): subl $16, %esi
|
|||
addl %ecx, %edi /* add the magic value to the word. We get
|
||||
carry bits reported for each byte which
|
||||
is *not* 0 */
|
||||
jnc L(8) /* highest byte is C => return pointer */
|
||||
jnc L(8) /* highest byte is CHR => return pointer */
|
||||
xorl %ecx, %edi /* ((word^charmask)+magic)^(word^charmask) */
|
||||
orl $0xfefefeff, %edi /* set all non-carry bits */
|
||||
incl %edi /* add 1: if one carry bit was *not* set
|
||||
|
|
@ -256,7 +258,7 @@ L(2): subl $16, %esi
|
|||
addl %ecx, %edi /* add the magic value to the word. We get
|
||||
carry bits reported for each byte which
|
||||
is *not* 0 */
|
||||
jnc L(8) /* highest byte is C => return pointer */
|
||||
jnc L(8) /* highest byte is CHR => return pointer */
|
||||
xorl %ecx, %edi /* ((word^charmask)+magic)^(word^charmask) */
|
||||
orl $0xfefefeff, %edi /* set all non-carry bits */
|
||||
incl %edi /* add 1: if one carry bit was *not* set
|
||||
|
|
@ -268,19 +270,19 @@ L(2): subl $16, %esi
|
|||
L(3): andl $3, %esi /* mask out uninteresting bytes */
|
||||
jz L(4) /* no remaining bytes => return NULL */
|
||||
|
||||
cmpb %dl, (%eax) /* compare byte with C */
|
||||
cmpb %dl, (%eax) /* compare byte with CHR */
|
||||
je L(9) /* equal, than return pointer */
|
||||
incl %eax /* increment source pointer */
|
||||
decl %esi /* decrement length */
|
||||
jz L(4) /* no remaining bytes => return NULL */
|
||||
|
||||
cmpb %dl, (%eax) /* compare byte with C */
|
||||
cmpb %dl, (%eax) /* compare byte with CHR */
|
||||
je L(9) /* equal, than return pointer */
|
||||
incl %eax /* increment source pointer */
|
||||
decl %esi /* decrement length */
|
||||
jz L(4) /* no remaining bytes => return NULL */
|
||||
|
||||
cmpb %dl, (%eax) /* compare byte with C */
|
||||
cmpb %dl, (%eax) /* compare byte with CHR */
|
||||
je L(9) /* equal, than return pointer */
|
||||
|
||||
L(4): /* no byte found => return NULL */
|
||||
|
|
@ -312,5 +314,6 @@ L(8): testb %cl, %cl /* test first byte in dword */
|
|||
L(9): popl %edi /* pop saved registers */
|
||||
popl %esi
|
||||
|
||||
ret
|
||||
LEAVE
|
||||
RET_PTR
|
||||
END (memchr)
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
/* Compare two memory blocks for differences in the first COUNT bytes.
|
||||
Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
|
||||
Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
|
|
@ -19,23 +19,24 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
block1 (sp + 4)
|
||||
block2 (sp + 8)
|
||||
len (sp + 12)
|
||||
*/
|
||||
#define PARMS LINKAGE+4 /* space for 1 saved reg */
|
||||
#define BLK1 PARMS
|
||||
#define BLK2 BLK1+PTR_SIZE
|
||||
#define LEN BLK2+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY (memcmp)
|
||||
ENTER
|
||||
|
||||
pushl %esi /* Save callee-safe registers. */
|
||||
movl %edi, %edx /* Note that %edx is not used and can
|
||||
so be used to save %edi. It's faster. */
|
||||
|
||||
movl 8(%esp), %esi /* Load address of block #1. */
|
||||
movl 12(%esp), %edi /* Load address of block #2. */
|
||||
movl 16(%esp), %ecx /* Load maximal length of compare area. */
|
||||
movl BLK1(%esp), %esi
|
||||
movl BLK2(%esp), %edi
|
||||
movl LEN(%esp), %ecx
|
||||
|
||||
cld /* Set direction of comparison. */
|
||||
|
||||
|
|
@ -61,6 +62,7 @@ ENTRY (memcmp)
|
|||
L(1): popl %esi /* Restore registers. */
|
||||
movl %edx, %edi
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
END (memcmp)
|
||||
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/* i80386 __mpn_mul_1 -- Multiply a limb vector with a limb and store
|
||||
the result in a second limb vector.
|
||||
Copyright (C) 1992, 1994, 1997, 1998 Free Software Foundation, Inc.
|
||||
Copyright (C) 1992, 1994, 1997, 1998, 2000 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
|
||||
|
|
@ -28,6 +28,13 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
#define PARMS LINKAGE+16 /* space for 4 saved regs */
|
||||
#define RES PARMS
|
||||
#define S1 RES+PTR_SIZE
|
||||
#define SIZE S1+PTR_SIZE
|
||||
#define S2LIMB SIZE+4
|
||||
|
||||
#define res_ptr edi
|
||||
#define s1_ptr esi
|
||||
|
|
@ -36,16 +43,17 @@
|
|||
|
||||
.text
|
||||
ENTRY(__mpn_mul_1)
|
||||
ENTER
|
||||
|
||||
INSN1(push,l ,R(edi))
|
||||
INSN1(push,l ,R(esi))
|
||||
INSN1(push,l ,R(ebx))
|
||||
INSN1(push,l ,R(ebp))
|
||||
|
||||
INSN2(mov,l ,R(res_ptr),MEM_DISP(esp,20))
|
||||
INSN2(mov,l ,R(s1_ptr),MEM_DISP(esp,24))
|
||||
INSN2(mov,l ,R(size),MEM_DISP(esp,28))
|
||||
INSN2(mov,l ,R(s2_limb),MEM_DISP(esp,32))
|
||||
INSN2(mov,l ,R(res_ptr),MEM_DISP(esp,RES))
|
||||
INSN2(mov,l ,R(s1_ptr),MEM_DISP(esp,S1))
|
||||
INSN2(mov,l ,R(size),MEM_DISP(esp,SIZE))
|
||||
INSN2(mov,l ,R(s2_limb),MEM_DISP(esp,S2LIMB))
|
||||
|
||||
INSN2(lea,l ,R(res_ptr),MEM_INDEX(res_ptr,size,4))
|
||||
INSN2(lea,l ,R(s1_ptr),MEM_INDEX(s1_ptr,size,4))
|
||||
|
|
@ -68,6 +76,8 @@ L(oop):
|
|||
INSN1(pop,l ,R(ebx))
|
||||
INSN1(pop,l ,R(esi))
|
||||
INSN1(pop,l ,R(edi))
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
#undef size
|
||||
END(__mpn_mul_1)
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/* rawmemchr (str, ch) -- Return pointer to first occurrence of CH in STR.
|
||||
For Intel 80x86, x>=3.
|
||||
Copyright (C) 1994, 95, 96, 97, 98, 99 Free Software Foundation, Inc.
|
||||
Copyright (C) 1994, 95, 96, 97, 98, 99, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>
|
||||
Optimised a little by Alan Modra <Alan@SPRI.Levels.UniSA.Edu.Au>
|
||||
|
|
@ -31,21 +31,23 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
str (sp + 4)
|
||||
c (sp + 8)
|
||||
*/
|
||||
#define PARMS LINKAGE+4 /* space for 1 saved reg */
|
||||
#define RTN PARMS
|
||||
#define STR RTN+RTN_SIZE
|
||||
#define CHR STR+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY (__rawmemchr)
|
||||
ENTER
|
||||
|
||||
/* Save callee-safe register used in this function. */
|
||||
pushl %edi
|
||||
|
||||
/* Load parameters into registers. */
|
||||
movl 8(%esp), %eax /* str: pointer to memory block. */
|
||||
movl 12(%esp), %edx /* c: byte we are looking for. */
|
||||
movl STR(%esp), %eax
|
||||
movl CHR(%esp), %edx
|
||||
|
||||
/* At the moment %edx contains C. What we need for the
|
||||
algorithm is C in all bytes of the dword. Avoid
|
||||
|
|
@ -213,6 +215,7 @@ L(8): testb %cl, %cl /* test first byte in dword */
|
|||
|
||||
L(9): popl %edi /* pop saved register */
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
END (__rawmemchr)
|
||||
weak_alias (__rawmemchr, rawmemchr)
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
/* i80386 __mpn_rshift --
|
||||
Copyright (C) 1992, 1994, 1997, 1998, 1999 Free Software Foundation, Inc.
|
||||
Copyright (C) 1992, 1994, 1997, 1998, 1999, 2000 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
|
||||
|
|
@ -17,27 +17,28 @@
|
|||
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
|
||||
MA 02111-1307, USA. */
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS
|
||||
res_ptr (sp + 4)
|
||||
s_ptr (sp + 8)
|
||||
size (sp + 12)
|
||||
cnt (sp + 16)
|
||||
*/
|
||||
|
||||
#include "sysdep.h"
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
#define PARMS LINKAGE+12 /* space for 3 saved regs */
|
||||
#define RES PARMS
|
||||
#define S RES+PTR_SIZE
|
||||
#define SIZE S+PTR_SIZE
|
||||
#define CNT SIZE+4
|
||||
|
||||
.text
|
||||
ENTRY(__mpn_rshift)
|
||||
ENTER
|
||||
|
||||
pushl %edi
|
||||
pushl %esi
|
||||
pushl %ebx
|
||||
|
||||
movl 16(%esp),%edi /* res_ptr */
|
||||
movl 20(%esp),%esi /* s_ptr */
|
||||
movl 24(%esp),%edx /* size */
|
||||
movl 28(%esp),%ecx /* cnt */
|
||||
movl RES(%esp),%edi
|
||||
movl S(%esp),%esi
|
||||
movl SIZE(%esp),%edx
|
||||
movl CNT(%esp),%ecx
|
||||
|
||||
leal -4(%edi,%edx,4),%edi
|
||||
leal (%esi,%edx,4),%esi
|
||||
|
|
@ -72,6 +73,8 @@ L(1): movl (%esi,%edx,4),%eax
|
|||
popl %ebx
|
||||
popl %esi
|
||||
popl %edi
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
|
||||
L(end): shrl %cl,%ebx /* compute most significant limb */
|
||||
|
|
@ -80,5 +83,7 @@ L(end): shrl %cl,%ebx /* compute most significant limb */
|
|||
popl %ebx
|
||||
popl %esi
|
||||
popl %edi
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
END(__mpn_rshift)
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/* Copy SRC to DEST returning the address of the terminating '\0' in DEST.
|
||||
For Intel 80x86, x>=3.
|
||||
Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
|
||||
Copyright (C) 1994, 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper (drepper@gnu.ai.mit.edu).
|
||||
|
||||
|
|
@ -24,18 +24,19 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
dest (sp + 4)
|
||||
src (sp + 8)
|
||||
*/
|
||||
#define PARMS LINKAGE /* no space for saved regs */
|
||||
#define RTN PARMS
|
||||
#define DEST RTN+RTN_SIZE
|
||||
#define SRC DEST+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY (__stpcpy)
|
||||
movl 4(%esp), %eax /* load destination pointer */
|
||||
movl 8(%esp), %ecx /* load source pointer */
|
||||
ENTER
|
||||
|
||||
movl DEST(%esp), %eax
|
||||
movl SRC(%esp), %ecx
|
||||
subl %eax, %ecx /* magic: reduce number of loop variants
|
||||
to one using addressing mode */
|
||||
|
||||
|
|
@ -81,7 +82,9 @@ L(1): addl $4, %eax /* increment loop counter */
|
|||
L(4): incl %eax
|
||||
L(3): incl %eax
|
||||
L(2):
|
||||
ret
|
||||
|
||||
LEAVE
|
||||
RET_PTR
|
||||
END (__stpcpy)
|
||||
|
||||
weak_alias (__stpcpy, stpcpy)
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/* copy no more then N bytes from SRC to DEST, returning the address of
|
||||
the terminating '\0' in DEST.
|
||||
For Intel 80x86, x>=3.
|
||||
Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
|
||||
Copyright (C) 1994, 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>
|
||||
Some bug fixes by Alan Modra <Alan@SPRI.Levels.UniSA.Edu.Au>
|
||||
|
|
@ -26,22 +26,23 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
dest (sp + 4)
|
||||
src (sp + 8)
|
||||
maxlen (sp + 12)
|
||||
*/
|
||||
#define PARMS LINKAGE+4 /* space for 1 saved reg */
|
||||
#define RTN PARMS
|
||||
#define DEST RTN+RTN_SIZE
|
||||
#define SRC DEST+PTR_SIZE
|
||||
#define LEN SRC+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY (__stpncpy)
|
||||
ENTER
|
||||
|
||||
pushl %esi
|
||||
|
||||
movl 8(%esp), %eax /* load destination pointer */
|
||||
movl 12(%esp), %esi /* load source pointer */
|
||||
movl 16(%esp), %ecx /* load maximal length */
|
||||
movl DEST(%esp), %eax
|
||||
movl SRC(%esp), %esi
|
||||
movl LEN(%esp), %ecx
|
||||
|
||||
subl %eax, %esi /* magic: reduce number of loop variants
|
||||
to one using addressing mode */
|
||||
|
|
@ -138,7 +139,8 @@ L(3): decl %ecx /* all bytes written? */
|
|||
|
||||
L(9): popl %esi /* restore saved register content */
|
||||
|
||||
ret
|
||||
LEAVE
|
||||
RET_PTR
|
||||
END (__stpncpy)
|
||||
|
||||
weak_alias (__stpncpy, stpncpy)
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/* strchr (str, ch) -- Return pointer to first occurrence of CH in STR.
|
||||
For Intel 80x86, x>=3.
|
||||
Copyright (C) 1994, 1995, 1996, 1997, 1999 Free Software Foundation, Inc.
|
||||
Copyright (C) 1994, 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>
|
||||
Some optimisations by Alan Modra <Alan@SPRI.Levels.UniSA.Edu.Au>
|
||||
|
|
@ -22,19 +22,20 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
str (sp + 4)
|
||||
ch (sp + 8)
|
||||
*/
|
||||
#define PARMS LINKAGE+4 /* space for 1 saved reg */
|
||||
#define RTN PARMS
|
||||
#define STR RTN+RTN_SIZE
|
||||
#define CHR STR+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY (strchr)
|
||||
pushl %edi /* Save callee-safe registers used here. */
|
||||
ENTER
|
||||
|
||||
movl 8(%esp), %eax /* get string pointer */
|
||||
movl 12(%esp), %edx /* get character we are looking for */
|
||||
pushl %edi /* Save callee-safe registers used here. */
|
||||
movl STR(%esp), %eax
|
||||
movl CHR(%esp), %edx
|
||||
|
||||
/* At the moment %edx contains C. What we need for the
|
||||
algorithm is C in all bytes of the dword. Avoid
|
||||
|
|
@ -240,7 +241,9 @@ L(11): movl (%eax), %ecx /* get word (= 4 bytes) in question */
|
|||
L(2): /* Return NULL. */
|
||||
xorl %eax, %eax /* load NULL in return value register */
|
||||
popl %edi /* restore saved register content */
|
||||
ret
|
||||
|
||||
LEAVE
|
||||
RET_PTR
|
||||
|
||||
L(73): addl $4, %eax /* adjust pointer */
|
||||
L(72): addl $4, %eax
|
||||
|
|
@ -273,7 +276,8 @@ L(7): testb %cl, %cl /* is first byte C? */
|
|||
|
||||
L(6): popl %edi /* restore saved register content */
|
||||
|
||||
ret
|
||||
LEAVE
|
||||
RET_PTR
|
||||
END (strchr)
|
||||
|
||||
weak_alias (strchr, index)
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/* strchrnul (str, ch) -- Return pointer to first occurrence of CH in STR
|
||||
/* strchrnul (str, chr) -- Return pointer to first occurrence of CHR in STR
|
||||
or the final NUL byte.
|
||||
For Intel 80x86, x>=3.
|
||||
Copyright (C) 1994, 1995, 1996, 1997, 1999 Free Software Foundation, Inc.
|
||||
Copyright (C) 1994, 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper <drepper@gnu.org>
|
||||
Some optimisations by Alan Modra <Alan@SPRI.Levels.UniSA.Edu.Au>
|
||||
|
|
@ -23,22 +23,24 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
str (sp + 4)
|
||||
ch (sp + 8)
|
||||
*/
|
||||
#define PARMS LINKAGE+4 /* space for 1 saved reg */
|
||||
#define RTN PARMS
|
||||
#define STR RTN+RTN_SIZE
|
||||
#define CHR STR+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY (__strchrnul)
|
||||
ENTER
|
||||
|
||||
pushl %edi /* Save callee-safe registers used here. */
|
||||
|
||||
movl 8(%esp), %eax /* get string pointer */
|
||||
movl 12(%esp), %edx /* get character we are looking for */
|
||||
movl STR(%esp), %eax
|
||||
movl CHR(%esp), %edx
|
||||
|
||||
/* At the moment %edx contains C. What we need for the
|
||||
algorithm is C in all bytes of the dword. Avoid
|
||||
/* At the moment %edx contains CHR. What we need for the
|
||||
algorithm is CHR in all bytes of the dword. Avoid
|
||||
operations on 16 bit words because these require an
|
||||
prefix byte (and one more cycle). */
|
||||
movb %dl, %dh /* now it is 0|0|c|c */
|
||||
|
|
@ -108,9 +110,9 @@ ENTRY (__strchrnul)
|
|||
into bit 32 (=carry flag), so all of the hole bits will
|
||||
be changed.
|
||||
|
||||
3) But wait! Aren't we looking for C, not zero?
|
||||
3) But wait! Aren't we looking for CHR, not zero?
|
||||
Good point. So what we do is XOR LONGWORD with a longword,
|
||||
each of whose bytes is C. This turns each byte that is C
|
||||
each of whose bytes is CHR. This turns each byte that is CHR
|
||||
into a zero. */
|
||||
|
||||
/* Each round the main loop processes 16 bytes. */
|
||||
|
|
@ -125,7 +127,7 @@ L(11): movl (%eax), %ecx /* get word (= 4 bytes) in question */
|
|||
movl $0xfefefeff, %edi /* magic value */
|
||||
addl %ecx, %edi /* add the magic value to the word. We get
|
||||
carry bits reported for each byte which
|
||||
is *not* C */
|
||||
is *not* CHR */
|
||||
|
||||
/* According to the algorithm we had to reverse the effect of the
|
||||
XOR first and then test the overflow bits. But because the
|
||||
|
|
@ -144,7 +146,7 @@ L(11): movl (%eax), %ecx /* get word (= 4 bytes) in question */
|
|||
incl %edi /* add 1: if one carry bit was *not* set
|
||||
the addition will not result in 0. */
|
||||
|
||||
/* If at least one byte of the word is C we don't get 0 in %edi. */
|
||||
/* If at least one byte of the word is CHR we don't get 0 in %edi. */
|
||||
jnz L(7) /* found it => return pointer */
|
||||
|
||||
/* Now we made sure the dword does not contain the character we are
|
||||
|
|
@ -169,8 +171,8 @@ L(11): movl (%eax), %ecx /* get word (= 4 bytes) in question */
|
|||
movl $0xfefefeff, %edi /* magic value */
|
||||
addl %ecx, %edi /* add the magic value to the word. We get
|
||||
carry bits reported for each byte which
|
||||
is *not* C */
|
||||
jnc L(71) /* highest byte is C => return pointer */
|
||||
is *not* CHR */
|
||||
jnc L(71) /* highest byte is CHR => return pointer */
|
||||
xorl %ecx, %edi /* ((word^charmask)+magic)^(word^charmask) */
|
||||
orl $0xfefefeff, %edi /* set all non-carry bits */
|
||||
incl %edi /* add 1: if one carry bit was *not* set
|
||||
|
|
@ -194,8 +196,8 @@ L(11): movl (%eax), %ecx /* get word (= 4 bytes) in question */
|
|||
movl $0xfefefeff, %edi /* magic value */
|
||||
addl %ecx, %edi /* add the magic value to the word. We get
|
||||
carry bits reported for each byte which
|
||||
is *not* C */
|
||||
jnc L(72) /* highest byte is C => return pointer */
|
||||
is *not* CHR */
|
||||
jnc L(72) /* highest byte is CHR => return pointer */
|
||||
xorl %ecx, %edi /* ((word^charmask)+magic)^(word^charmask) */
|
||||
orl $0xfefefeff, %edi /* set all non-carry bits */
|
||||
incl %edi /* add 1: if one carry bit was *not* set
|
||||
|
|
@ -219,8 +221,8 @@ L(11): movl (%eax), %ecx /* get word (= 4 bytes) in question */
|
|||
movl $0xfefefeff, %edi /* magic value */
|
||||
addl %ecx, %edi /* add the magic value to the word. We get
|
||||
carry bits reported for each byte which
|
||||
is *not* C */
|
||||
jnc L(73) /* highest byte is C => return pointer */
|
||||
is *not* CHR */
|
||||
jnc L(73) /* highest byte is CHR => return pointer */
|
||||
xorl %ecx, %edi /* ((word^charmask)+magic)^(word^charmask) */
|
||||
orl $0xfefefeff, %edi /* set all non-carry bits */
|
||||
incl %edi /* add 1: if one carry bit was *not* set
|
||||
|
|
@ -246,20 +248,20 @@ L(71): addl $4, %eax
|
|||
But we have to take care of the case that a NUL char is
|
||||
found before this in the dword. */
|
||||
|
||||
L(7): testb %cl, %cl /* is first byte C? */
|
||||
L(7): testb %cl, %cl /* is first byte CHR? */
|
||||
jz L(6) /* yes => return pointer */
|
||||
cmpb %dl, %cl /* is first byte NUL? */
|
||||
je L(6) /* yes => return NULL */
|
||||
incl %eax /* it's not in the first byte */
|
||||
|
||||
testb %ch, %ch /* is second byte C? */
|
||||
testb %ch, %ch /* is second byte CHR? */
|
||||
jz L(6) /* yes => return pointer */
|
||||
cmpb %dl, %ch /* is second byte NUL? */
|
||||
je L(6) /* yes => return NULL? */
|
||||
incl %eax /* it's not in the second byte */
|
||||
|
||||
shrl $16, %ecx /* make upper byte accessible */
|
||||
testb %cl, %cl /* is third byte C? */
|
||||
testb %cl, %cl /* is third byte CHR? */
|
||||
jz L(6) /* yes => return pointer */
|
||||
cmpb %dl, %cl /* is third byte NUL? */
|
||||
je L(6) /* yes => return NULL */
|
||||
|
|
@ -269,7 +271,8 @@ L(7): testb %cl, %cl /* is first byte C? */
|
|||
|
||||
L(6): popl %edi /* restore saved register content */
|
||||
|
||||
ret
|
||||
LEAVE
|
||||
RET_PTR
|
||||
END (__strchrnul)
|
||||
|
||||
weak_alias (__strchrnul, strchrnul)
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/* strcspn (str, ss) -- Return the length of the initial segment of STR
|
||||
which contains no characters from SS.
|
||||
For Intel 80x86, x>=3.
|
||||
Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
|
||||
Copyright (C) 1994, 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>
|
||||
Bug fixes by Alan Modra <Alan@SPRI.Levels.UniSA.Edu.Au>
|
||||
|
|
@ -23,17 +23,18 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
str (sp + 4)
|
||||
stopset (sp + 8)
|
||||
*/
|
||||
#define PARMS LINKAGE /* no space for saved regs */
|
||||
#define STR PARMS
|
||||
#define STOP STR+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY (strcspn)
|
||||
movl 4(%esp), %edx /* get string pointer */
|
||||
movl 8(%esp), %eax /* get stopset pointer */
|
||||
ENTER
|
||||
|
||||
movl STR(%esp), %edx
|
||||
movl STOP(%esp), %eax
|
||||
|
||||
/* First we create a table with flags for all possible characters.
|
||||
For the ASCII (7bit/8bit) or ISO-8859-X character sets which are
|
||||
|
|
@ -173,5 +174,6 @@ L(4): subl %edx, %eax /* we have to return the number of valid
|
|||
non-valid character */
|
||||
addl $256, %esp /* remove stopset */
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
END (strcspn)
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/* strcspn (str, ss) -- Return the length of the initial segement of STR
|
||||
which contains no characters from SS.
|
||||
For Intel 80x86, x>=3.
|
||||
Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
|
||||
Copyright (C) 1994, 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
|
||||
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>
|
||||
Bug fixes by Alan Modra <Alan@SPRI.Levels.UniSA.Edu.Au>
|
||||
This file is part of the GNU C Library.
|
||||
|
|
@ -23,17 +23,19 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
str (sp + 4)
|
||||
stopset (sp + 8)
|
||||
*/
|
||||
#define PARMS LINKAGE /* no space for saved regs */
|
||||
#define RTN PARMS
|
||||
#define STR RTN+RTN_SIZE
|
||||
#define STOP STR+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY (strpbrk)
|
||||
movl 4(%esp), %edx /* get string pointer */
|
||||
movl 8(%esp), %eax /* get stopset pointer */
|
||||
ENTER
|
||||
|
||||
movl STR(%esp), %edx
|
||||
movl STOP(%esp), %eax
|
||||
|
||||
/* First we create a table with flags for all possible characters.
|
||||
For the ASCII (7bit/8bit) or ISO-8859-X character sets which are
|
||||
|
|
@ -174,5 +176,6 @@ L(4): addl $256, %esp /* remove stopset */
|
|||
jnz L(7) /* no => return pointer */
|
||||
xorl %eax, %eax /* return NULL */
|
||||
|
||||
L(7): ret
|
||||
L(7): LEAVE
|
||||
RET_PTR
|
||||
END (strpbrk)
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/* strrchr (str, ch) -- Return pointer to last occurrence of CH in STR.
|
||||
For Intel 80x86, x>=3.
|
||||
Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
|
||||
Copyright (C) 1994, 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>
|
||||
Some optimisations by Alan Modra <Alan@SPRI.Levels.UniSA.Edu.Au>
|
||||
|
|
@ -22,21 +22,23 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
str (sp + 4)
|
||||
ch (sp + 8)
|
||||
*/
|
||||
#define PARMS LINKAGE+8 /* space for 2 saved regs */
|
||||
#define RTN PARMS
|
||||
#define STR RTN+RTN_SIZE
|
||||
#define CHR STR+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY (strrchr)
|
||||
ENTER
|
||||
|
||||
pushl %edi /* Save callee-safe registers used here. */
|
||||
pushl %esi
|
||||
|
||||
xorl %eax, %eax
|
||||
movl 12(%esp), %esi /* get string pointer */
|
||||
movl 16(%esp), %ecx /* get character we are looking for */
|
||||
movl STR(%esp), %esi
|
||||
movl CHR(%esp), %ecx
|
||||
|
||||
/* At the moment %ecx contains C. What we need for the
|
||||
algorithm is C in all bytes of the dword. Avoid
|
||||
|
|
@ -320,7 +322,8 @@ L(26): testb %dl, %dl /* is third byte == NUL */
|
|||
L(2): popl %esi /* restore saved register content */
|
||||
popl %edi
|
||||
|
||||
ret
|
||||
LEAVE
|
||||
RET_PTR
|
||||
END (strrchr)
|
||||
|
||||
weak_alias (strrchr, rindex)
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/* strcspn (str, ss) -- Return the length of the initial segment of STR
|
||||
which contains only characters from SS.
|
||||
For Intel 80x86, x>=3.
|
||||
Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
|
||||
Copyright (C) 1994, 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>
|
||||
Bug fixes by Alan Modra <Alan@SPRI.Levels.UniSA.Edu.Au>
|
||||
|
|
@ -23,17 +23,18 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS:
|
||||
str (sp + 4)
|
||||
skipset (sp + 8)
|
||||
*/
|
||||
#define PARMS LINKAGE /* no space for saved regs */
|
||||
#define STR PARMS
|
||||
#define SKIP STR+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY (strspn)
|
||||
movl 4(%esp), %edx /* get string pointer */
|
||||
movl 8(%esp), %eax /* get skipset pointer */
|
||||
ENTER
|
||||
|
||||
movl STR(%esp), %edx
|
||||
movl SKIP(%esp), %eax
|
||||
|
||||
/* First we create a table with flags for all possible characters.
|
||||
For the ASCII (7bit/8bit) or ISO-8859-X character sets which are
|
||||
|
|
@ -173,5 +174,6 @@ L(4): subl %edx, %eax /* we have to return the number of valid
|
|||
non-valid character */
|
||||
addl $256, %esp /* remove stopset */
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
END (strspn)
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/* strtok (str, delim) -- Return next DELIM separated token from STR.
|
||||
For Intel 80x86, x>=3.
|
||||
Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
|
||||
Copyright (C) 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
|
||||
|
||||
|
|
@ -21,6 +21,7 @@
|
|||
|
||||
#include <sysdep.h>
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
/* This file can be used for three variants of the strtok function:
|
||||
|
||||
|
|
@ -48,12 +49,19 @@ save_ptr:
|
|||
#define FUNCTION strtok
|
||||
#endif
|
||||
|
||||
#define PARMS LINKAGE /* no space for saved regs */
|
||||
#define RTN PARMS
|
||||
#define STR RTN+RTN_SIZE
|
||||
#define DELIM STR+PTR_SIZE
|
||||
#define SAVE DELIM+PTR_SIZE
|
||||
|
||||
.text
|
||||
|
||||
ENTRY (FUNCTION)
|
||||
ENTER
|
||||
|
||||
movl 4(%esp), %edx /* Get start of string. */
|
||||
movl 8(%esp), %eax /* Get start of delimiter set. */
|
||||
movl STR(%esp), %edx
|
||||
movl DELIM(%esp), %eax
|
||||
|
||||
#if !defined (USE_AS_STRTOK_R) && defined (PIC)
|
||||
pushl %ebx /* Save PIC register. */
|
||||
|
|
@ -70,7 +78,7 @@ L(here):
|
|||
|
||||
#ifdef USE_AS_STRTOK_R
|
||||
/* The value is stored in the third argument. */
|
||||
movl 12(%esp), %edx
|
||||
movl SAVE(%esp), %edx
|
||||
movl (%edx), %edx
|
||||
#else
|
||||
/* The value is in the local variable defined above. But
|
||||
|
|
@ -257,7 +265,7 @@ L(11):
|
|||
L(return):
|
||||
/* Store the pointer to the next character. */
|
||||
#ifdef USE_AS_STRTOK_R
|
||||
movl 12(%esp), %ecx
|
||||
movl SAVE(%esp), %ecx
|
||||
movl %edx, (%ecx)
|
||||
#else
|
||||
# ifndef PIC
|
||||
|
|
@ -267,7 +275,8 @@ L(return):
|
|||
popl %ebx
|
||||
# endif
|
||||
#endif
|
||||
ret
|
||||
LEAVE
|
||||
RET_PTR
|
||||
|
||||
L(returnNULL):
|
||||
xorl %eax, %eax
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/* 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, 1995, 1997, 1998 Free Software Foundation, Inc.
|
||||
Copyright (C) 1992, 1994, 1995, 1997, 1998, 2000 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
|
||||
|
|
@ -18,26 +18,27 @@
|
|||
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
|
||||
MA 02111-1307, USA. */
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS
|
||||
res_ptr (sp + 4)
|
||||
s1_ptr (sp + 8)
|
||||
s2_ptr (sp + 12)
|
||||
size (sp + 16)
|
||||
*/
|
||||
|
||||
#include "sysdep.h"
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
#define PARMS LINKAGE+8 /* space for 2 saved regs */
|
||||
#define RES PARMS
|
||||
#define S1 RES+PTR_SIZE
|
||||
#define S2 S1+PTR_SIZE
|
||||
#define SIZE S2+PTR_SIZE
|
||||
|
||||
.text
|
||||
ENTRY(__mpn_sub_n)
|
||||
ENTER
|
||||
|
||||
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 RES(%esp),%edi
|
||||
movl S1(%esp),%esi
|
||||
movl S2(%esp),%edx
|
||||
movl SIZE(%esp),%ecx
|
||||
|
||||
movl %ecx,%eax
|
||||
shrl $3,%ecx /* compute count for unrolled loop */
|
||||
|
|
@ -99,5 +100,7 @@ L(oop): movl (%esi),%eax
|
|||
|
||||
popl %esi
|
||||
popl %edi
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
END(__mpn_sub_n)
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/* i80386 __mpn_submul_1 -- Multiply a limb vector with a limb and subtract
|
||||
the result from a second limb vector.
|
||||
Copyright (C) 1992, 1994, 1997, 1998 Free Software Foundation, Inc.
|
||||
Copyright (C) 1992, 1994, 1997, 1998, 2000 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
|
||||
|
|
@ -18,16 +18,15 @@
|
|||
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
|
||||
MA 02111-1307, USA. */
|
||||
|
||||
/*
|
||||
INPUT PARAMETERS
|
||||
res_ptr (sp + 4)
|
||||
s1_ptr (sp + 8)
|
||||
sizeP (sp + 12)
|
||||
s2_limb (sp + 16)
|
||||
*/
|
||||
|
||||
#include "sysdep.h"
|
||||
#include "asm-syntax.h"
|
||||
#include "bp-asm.h"
|
||||
|
||||
#define PARMS LINKAGE+16 /* space for 4 saved regs */
|
||||
#define RES PARMS
|
||||
#define S1 RES+PTR_SIZE
|
||||
#define SIZE S1+PTR_SIZE
|
||||
#define S2LIMB SIZE+4
|
||||
|
||||
#define res_ptr edi
|
||||
#define s1_ptr esi
|
||||
|
|
@ -36,16 +35,17 @@
|
|||
|
||||
.text
|
||||
ENTRY(__mpn_submul_1)
|
||||
ENTER
|
||||
|
||||
INSN1(push,l ,R(edi))
|
||||
INSN1(push,l ,R(esi))
|
||||
INSN1(push,l ,R(ebx))
|
||||
INSN1(push,l ,R(ebp))
|
||||
|
||||
INSN2(mov,l ,R(res_ptr),MEM_DISP(esp,20))
|
||||
INSN2(mov,l ,R(s1_ptr),MEM_DISP(esp,24))
|
||||
INSN2(mov,l ,R(sizeP),MEM_DISP(esp,28))
|
||||
INSN2(mov,l ,R(s2_limb),MEM_DISP(esp,32))
|
||||
INSN2(mov,l ,R(res_ptr),MEM_DISP(esp,RES))
|
||||
INSN2(mov,l ,R(s1_ptr),MEM_DISP(esp,S1))
|
||||
INSN2(mov,l ,R(sizeP),MEM_DISP(esp,SIZE))
|
||||
INSN2(mov,l ,R(s2_limb),MEM_DISP(esp,S2LIMB))
|
||||
|
||||
INSN2(lea,l ,R(res_ptr),MEM_INDEX(res_ptr,sizeP,4))
|
||||
INSN2(lea,l ,R(s1_ptr),MEM_INDEX(s1_ptr,sizeP,4))
|
||||
|
|
@ -69,5 +69,7 @@ L(oop):
|
|||
INSN1(pop,l ,R(ebx))
|
||||
INSN1(pop,l ,R(esi))
|
||||
INSN1(pop,l ,R(edi))
|
||||
|
||||
LEAVE
|
||||
ret
|
||||
END(__mpn_submul_1)
|
||||
|
|
|
|||
Loading…
Reference in New Issue