mirror of
git://git.gnupg.org/gnupg.git
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Use the portable C MPI code for OpenBSD before 3.4, and remove the special
i386-openbsd assembly directory.
This commit is contained in:
parent
d38c4b20a5
commit
5a57e36003
@ -1,3 +0,0 @@
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These are special i386 files for use on OpenBSD, which (at least until
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version 3.1) has an older assembler that won't work with the files in
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i386.
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@ -1,9 +0,0 @@
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mpih-add1.S
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mpih-mul1.S
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mpih-mul2.S
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mpih-mul3.S
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mpih-lshift.S
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mpih-rshift.S
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mpih-sub1.S
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syntax.h
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@ -1,118 +0,0 @@
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/* i80386 add_n -- Add two limb vectors of the same length > 0 and store
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* sum in a third limb vector.
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*
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* Copyright (C) 1992, 1994, 1995, 1998,
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* 2001 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* GnuPG 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*
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* Note: This code is heavily based on the GNU MP Library.
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* Actually it's the same code with only minor changes in the
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* way the data is stored; this is to support the abstraction
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* of an optional secure memory allocation which may be used
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* to avoid revealing of sensitive data due to paging etc.
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* The GNU MP Library itself is published under the LGPL;
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* however I decided to publish this code under the plain GPL.
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*/
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#include "sysdep.h"
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#include "asm-syntax.h"
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/*******************
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* mpi_limb_t
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* mpihelp_add_n( mpi_ptr_t res_ptr, (sp + 4)
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* mpi_ptr_t s1_ptr, (sp + 8)
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* mpi_ptr_t s2_ptr, (sp + 12)
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* mpi_size_t size) (sp + 16)
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*/
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.text
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ALIGN (3)
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.globl C_SYMBOL_NAME(mpihelp_add_n)
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C_SYMBOL_NAME(mpihelp_add_n:)
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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 %ecx,%eax
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shrl $3,%ecx /* compute count for unrolled loop */
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negl %eax
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andl $7,%eax /* get index where to start loop */
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jz Loop /* necessary special case for 0 */
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incl %ecx /* adjust loop count */
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shll $2,%eax /* adjustment for pointers... */
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subl %eax,%edi /* ... since they are offset ... */
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subl %eax,%esi /* ... by a constant when we ... */
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subl %eax,%edx /* ... enter the loop */
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shrl $2,%eax /* restore previous value */
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#ifdef PIC
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/* Calculate start address in loop for PIC. Due to limitations in some
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assemblers, Loop-L0-3 cannot be put into the leal */
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call L0
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L0: leal (%eax,%eax,8),%eax
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addl (%esp),%eax
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addl $(Loop-L0-3),%eax
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addl $4,%esp
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#else
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/* Calculate start address in loop for non-PIC. */
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leal (Loop - 3)(%eax,%eax,8),%eax
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#endif
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jmp *%eax /* jump into loop */
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ALIGN (3)
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Loop: movl (%esi),%eax
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adcl (%edx),%eax
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movl %eax,(%edi)
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movl 4(%esi),%eax
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adcl 4(%edx),%eax
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movl %eax,4(%edi)
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movl 8(%esi),%eax
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adcl 8(%edx),%eax
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movl %eax,8(%edi)
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movl 12(%esi),%eax
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adcl 12(%edx),%eax
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movl %eax,12(%edi)
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movl 16(%esi),%eax
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adcl 16(%edx),%eax
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movl %eax,16(%edi)
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movl 20(%esi),%eax
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adcl 20(%edx),%eax
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movl %eax,20(%edi)
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movl 24(%esi),%eax
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adcl 24(%edx),%eax
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movl %eax,24(%edi)
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movl 28(%esi),%eax
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adcl 28(%edx),%eax
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movl %eax,28(%edi)
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leal 32(%edi),%edi
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leal 32(%esi),%esi
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leal 32(%edx),%edx
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decl %ecx
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jnz Loop
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sbbl %eax,%eax
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negl %eax
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popl %esi
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popl %edi
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ret
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@ -1,96 +0,0 @@
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/* i80386 lshift
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* Copyright (C) 1992, 1994, 1998,
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* 2001 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* GnuPG 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*
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* Note: This code is heavily based on the GNU MP Library.
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* Actually it's the same code with only minor changes in the
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* way the data is stored; this is to support the abstraction
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* of an optional secure memory allocation which may be used
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* to avoid revealing of sensitive data due to paging etc.
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* The GNU MP Library itself is published under the LGPL;
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* however I decided to publish this code under the plain GPL.
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*/
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#include "sysdep.h"
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#include "asm-syntax.h"
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/*******************
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* mpi_limb_t
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* mpihelp_lshift( mpi_ptr_t wp, (sp + 4)
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* mpi_ptr_t up, (sp + 8)
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* mpi_size_t usize, (sp + 12)
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* unsigned cnt) (sp + 16)
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*/
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.text
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ALIGN (3)
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.globl C_SYMBOL_NAME(mpihelp_lshift)
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C_SYMBOL_NAME(mpihelp_lshift:)
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pushl %edi
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pushl %esi
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pushl %ebx
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movl 16(%esp),%edi /* res_ptr */
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movl 20(%esp),%esi /* s_ptr */
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movl 24(%esp),%edx /* size */
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movl 28(%esp),%ecx /* cnt */
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subl $4,%esi /* adjust s_ptr */
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movl (%esi,%edx,4),%ebx /* read most significant limb */
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xorl %eax,%eax
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shldl %cl,%ebx,%eax /* compute carry limb */
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decl %edx
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jz Lend
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pushl %eax /* push carry limb onto stack */
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testb $1,%edx
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jnz L1 /* enter loop in the middle */
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movl %ebx,%eax
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ALIGN (3)
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Loop: movl (%esi,%edx,4),%ebx /* load next lower limb */
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shldl %cl,%ebx,%eax /* compute result limb */
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movl %eax,(%edi,%edx,4) /* store it */
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decl %edx
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L1: movl (%esi,%edx,4),%eax
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shldl %cl,%eax,%ebx
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movl %ebx,(%edi,%edx,4)
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decl %edx
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jnz Loop
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shll %cl,%eax /* compute least significant limb */
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movl %eax,(%edi) /* store it */
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popl %eax /* pop carry limb */
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popl %ebx
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popl %esi
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popl %edi
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ret
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Lend: shll %cl,%ebx /* compute least significant limb */
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movl %ebx,(%edi) /* store it */
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popl %ebx
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popl %esi
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popl %edi
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ret
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@ -1,86 +0,0 @@
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/* i80386 mul_1 -- Multiply a limb vector with a limb and store
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* the result in a second limb vector.
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* Copyright (C) 1992, 1994, 1998,
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* 2001 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* GnuPG 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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||||
* along with this program; if not, write to the Free Software
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||||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*
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* Note: This code is heavily based on the GNU MP Library.
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* Actually it's the same code with only minor changes in the
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* way the data is stored; this is to support the abstraction
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* of an optional secure memory allocation which may be used
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* to avoid revealing of sensitive data due to paging etc.
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* The GNU MP Library itself is published under the LGPL;
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* however I decided to publish this code under the plain GPL.
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*/
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#include "sysdep.h"
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#include "asm-syntax.h"
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/*******************
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* mpi_limb_t
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* mpihelp_mul_1( mpi_ptr_t res_ptr, (sp + 4)
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* mpi_ptr_t s1_ptr, (sp + 8)
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* mpi_size_t s1_size, (sp + 12)
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* mpi_limb_t s2_limb) (sp + 16)
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*/
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#define res_ptr edi
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#define s1_ptr esi
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#define size ecx
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#define s2_limb ebp
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TEXT
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ALIGN (3)
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GLOBL C_SYMBOL_NAME(mpihelp_mul_1)
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C_SYMBOL_NAME(mpihelp_mul_1:)
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INSN1(push,l ,R(edi))
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INSN1(push,l ,R(esi))
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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(size),MEM_DISP(esp,28))
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INSN2(mov,l ,R(s2_limb),MEM_DISP(esp,32))
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INSN2(lea,l ,R(res_ptr),MEM_INDEX(res_ptr,size,4))
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INSN2(lea,l ,R(s1_ptr),MEM_INDEX(s1_ptr,size,4))
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INSN1(neg,l ,R(size))
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INSN2(xor,l ,R(ebx),R(ebx))
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ALIGN (3)
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Loop:
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INSN2(mov,l ,R(eax),MEM_INDEX(s1_ptr,size,4))
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INSN1(mul,l ,R(s2_limb))
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INSN2(add,l ,R(eax),R(ebx))
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INSN2(mov,l ,MEM_INDEX(res_ptr,size,4),R(eax))
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INSN2(adc,l ,R(edx),$0)
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INSN2(mov,l ,R(ebx),R(edx))
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INSN1(inc,l ,R(size))
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INSN1(jnz, ,Loop)
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INSN2(mov,l ,R(eax),R(ebx))
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INSN1(pop,l ,R(ebp))
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INSN1(pop,l ,R(ebx))
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INSN1(pop,l ,R(esi))
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INSN1(pop,l ,R(edi))
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ret
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@ -1,88 +0,0 @@
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/* i80386 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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||||
*
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||||
* Copyright (C) 1992, 1994, 1998,
|
||||
* 2001 Free Software Foundation, Inc.
|
||||
*
|
||||
* This file is part of GnuPG.
|
||||
*
|
||||
* GnuPG is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* GnuPG is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
||||
*
|
||||
* Note: This code is heavily based on the GNU MP Library.
|
||||
* Actually it's the same code with only minor changes in the
|
||||
* way the data is stored; this is to support the abstraction
|
||||
* of an optional secure memory allocation which may be used
|
||||
* to avoid revealing of sensitive data due to paging etc.
|
||||
* The GNU MP Library itself is published under the LGPL;
|
||||
* however I decided to publish this code under the plain GPL.
|
||||
*/
|
||||
|
||||
|
||||
#include "sysdep.h"
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||||
#include "asm-syntax.h"
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||||
|
||||
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/*******************
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||||
* mpi_limb_t
|
||||
* mpihelp_addmul_1( mpi_ptr_t res_ptr, (sp + 4)
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* mpi_ptr_t s1_ptr, (sp + 8)
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||||
* mpi_size_t s1_size, (sp + 12)
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* mpi_limb_t s2_limb) (sp + 16)
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*/
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||||
#define res_ptr edi
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#define s1_ptr esi
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#define size ecx
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#define s2_limb ebp
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TEXT
|
||||
ALIGN (3)
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GLOBL C_SYMBOL_NAME(mpihelp_addmul_1)
|
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C_SYMBOL_NAME(mpihelp_addmul_1:)
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||||
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||||
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))
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||||
INSN2(mov,l ,R(s1_ptr),MEM_DISP(esp,24))
|
||||
INSN2(mov,l ,R(size),MEM_DISP(esp,28))
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INSN2(mov,l ,R(s2_limb),MEM_DISP(esp,32))
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||||
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||||
INSN2(lea,l ,R(res_ptr),MEM_INDEX(res_ptr,size,4))
|
||||
INSN2(lea,l ,R(s1_ptr),MEM_INDEX(s1_ptr,size,4))
|
||||
INSN1(neg,l ,R(size))
|
||||
INSN2(xor,l ,R(ebx),R(ebx))
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||||
ALIGN (3)
|
||||
Loop:
|
||||
INSN2(mov,l ,R(eax),MEM_INDEX(s1_ptr,size,4))
|
||||
INSN1(mul,l ,R(s2_limb))
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||||
INSN2(add,l ,R(eax),R(ebx))
|
||||
INSN2(adc,l ,R(edx),$0)
|
||||
INSN2(add,l ,MEM_INDEX(res_ptr,size,4),R(eax))
|
||||
INSN2(adc,l ,R(edx),$0)
|
||||
INSN2(mov,l ,R(ebx),R(edx))
|
||||
|
||||
INSN1(inc,l ,R(size))
|
||||
INSN1(jnz, ,Loop)
|
||||
INSN2(mov,l ,R(eax),R(ebx))
|
||||
|
||||
INSN1(pop,l ,R(ebp))
|
||||
INSN1(pop,l ,R(ebx))
|
||||
INSN1(pop,l ,R(esi))
|
||||
INSN1(pop,l ,R(edi))
|
||||
ret
|
||||
|
@ -1,88 +0,0 @@
|
||||
/* i80386 submul_1 -- Multiply a limb vector with a limb and add
|
||||
* the result to a second limb vector.
|
||||
*
|
||||
* Copyright (C) 1992, 1994, 1998,
|
||||
* 2001 Free Software Foundation, Inc.
|
||||
*
|
||||
* This file is part of GnuPG.
|
||||
*
|
||||
* GnuPG is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* GnuPG is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
||||
*
|
||||
* Note: This code is heavily based on the GNU MP Library.
|
||||
* Actually it's the same code with only minor changes in the
|
||||
* way the data is stored; this is to support the abstraction
|
||||
* of an optional secure memory allocation which may be used
|
||||
* to avoid revealing of sensitive data due to paging etc.
|
||||
* The GNU MP Library itself is published under the LGPL;
|
||||
* however I decided to publish this code under the plain GPL.
|
||||
*/
|
||||
|
||||
|
||||
#include "sysdep.h"
|
||||
#include "asm-syntax.h"
|
||||
|
||||
|
||||
/*******************
|
||||
* mpi_limb_t
|
||||
* mpihelp_submul_1( mpi_ptr_t res_ptr, (sp + 4)
|
||||
* mpi_ptr_t s1_ptr, (sp + 8)
|
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* mpi_size_t s1_size, (sp + 12)
|
||||
* mpi_limb_t s2_limb) (sp + 16)
|
||||
*/
|
||||
|
||||
#define res_ptr edi
|
||||
#define s1_ptr esi
|
||||
#define size ecx
|
||||
#define s2_limb ebp
|
||||
|
||||
TEXT
|
||||
ALIGN (3)
|
||||
GLOBL C_SYMBOL_NAME(mpihelp_submul_1)
|
||||
C_SYMBOL_NAME(mpihelp_submul_1:)
|
||||
|
||||
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(lea,l ,R(res_ptr),MEM_INDEX(res_ptr,size,4))
|
||||
INSN2(lea,l ,R(s1_ptr),MEM_INDEX(s1_ptr,size,4))
|
||||
INSN1(neg,l ,R(size))
|
||||
INSN2(xor,l ,R(ebx),R(ebx))
|
||||
ALIGN (3)
|
||||
Loop:
|
||||
INSN2(mov,l ,R(eax),MEM_INDEX(s1_ptr,size,4))
|
||||
INSN1(mul,l ,R(s2_limb))
|
||||
INSN2(add,l ,R(eax),R(ebx))
|
||||
INSN2(adc,l ,R(edx),$0)
|
||||
INSN2(sub,l ,MEM_INDEX(res_ptr,size,4),R(eax))
|
||||
INSN2(adc,l ,R(edx),$0)
|
||||
INSN2(mov,l ,R(ebx),R(edx))
|
||||
|
||||
INSN1(inc,l ,R(size))
|
||||
INSN1(jnz, ,Loop)
|
||||
INSN2(mov,l ,R(eax),R(ebx))
|
||||
|
||||
INSN1(pop,l ,R(ebp))
|
||||
INSN1(pop,l ,R(ebx))
|
||||
INSN1(pop,l ,R(esi))
|
||||
INSN1(pop,l ,R(edi))
|
||||
ret
|
||||
|
@ -1,99 +0,0 @@
|
||||
/* i80386 rshift
|
||||
*
|
||||
* Copyright (C) 1992, 1994, 1998,
|
||||
* 2001 Free Software Foundation, Inc.
|
||||
*
|
||||
* This file is part of GnuPG.
|
||||
*
|
||||
* GnuPG is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* GnuPG is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
||||
*
|
||||
* Note: This code is heavily based on the GNU MP Library.
|
||||
* Actually it's the same code with only minor changes in the
|
||||
* way the data is stored; this is to support the abstraction
|
||||
* of an optional secure memory allocation which may be used
|
||||
* to avoid revealing of sensitive data due to paging etc.
|
||||
* The GNU MP Library itself is published under the LGPL;
|
||||
* however I decided to publish this code under the plain GPL.
|
||||
*/
|
||||
|
||||
|
||||
#include "sysdep.h"
|
||||
#include "asm-syntax.h"
|
||||
|
||||
|
||||
/*******************
|
||||
* mpi_limb_t
|
||||
* mpihelp_rshift( mpi_ptr_t wp, (sp + 4)
|
||||
* mpi_ptr_t up, (sp + 8)
|
||||
* mpi_size_t usize, (sp + 12)
|
||||
* unsigned cnt) (sp + 16)
|
||||
*/
|
||||
|
||||
.text
|
||||
ALIGN (3)
|
||||
.globl C_SYMBOL_NAME(mpihelp_rshift)
|
||||
C_SYMBOL_NAME(mpihelp_rshift:)
|
||||
pushl %edi
|
||||
pushl %esi
|
||||
pushl %ebx
|
||||
|
||||
movl 16(%esp),%edi /* wp */
|
||||
movl 20(%esp),%esi /* up */
|
||||
movl 24(%esp),%edx /* usize */
|
||||
movl 28(%esp),%ecx /* cnt */
|
||||
|
||||
leal -4(%edi,%edx,4),%edi
|
||||
leal (%esi,%edx,4),%esi
|
||||
negl %edx
|
||||
|
||||
movl (%esi,%edx,4),%ebx /* read least significant limb */
|
||||
xorl %eax,%eax
|
||||
shrdl %cl,%ebx,%eax /* compute carry limb */
|
||||
incl %edx
|
||||
jz Lend2
|
||||
pushl %eax /* push carry limb onto stack */
|
||||
testb $1,%edx
|
||||
jnz L2 /* enter loop in the middle */
|
||||
movl %ebx,%eax
|
||||
|
||||
ALIGN (3)
|
||||
Loop2: movl (%esi,%edx,4),%ebx /* load next higher limb */
|
||||
shrdl %cl,%ebx,%eax /* compute result limb */
|
||||
movl %eax,(%edi,%edx,4) /* store it */
|
||||
incl %edx
|
||||
L2: movl (%esi,%edx,4),%eax
|
||||
shrdl %cl,%eax,%ebx
|
||||
movl %ebx,(%edi,%edx,4)
|
||||
incl %edx
|
||||
jnz Loop2
|
||||
|
||||
shrl %cl,%eax /* compute most significant limb */
|
||||
movl %eax,(%edi) /* store it */
|
||||
|
||||
popl %eax /* pop carry limb */
|
||||
|
||||
popl %ebx
|
||||
popl %esi
|
||||
popl %edi
|
||||
ret
|
||||
|
||||
Lend2: shrl %cl,%ebx /* compute most significant limb */
|
||||
movl %ebx,(%edi) /* store it */
|
||||
|
||||
popl %ebx
|
||||
popl %esi
|
||||
popl %edi
|
||||
ret
|
||||
|
@ -1,119 +0,0 @@
|
||||
/* i80386 sub_n -- Sub two limb vectors of the same length > 0 and store
|
||||
* sum in a third limb vector.
|
||||
*
|
||||
* Copyright (C) 1992, 1994, 1995, 1998,
|
||||
* 2001 Free Software Foundation, Inc.
|
||||
*
|
||||
* This file is part of GnuPG.
|
||||
*
|
||||
* GnuPG is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* GnuPG is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
||||
*
|
||||
* Note: This code is heavily based on the GNU MP Library.
|
||||
* Actually it's the same code with only minor changes in the
|
||||
* way the data is stored; this is to support the abstraction
|
||||
* of an optional secure memory allocation which may be used
|
||||
* to avoid revealing of sensitive data due to paging etc.
|
||||
* The GNU MP Library itself is published under the LGPL;
|
||||
* however I decided to publish this code under the plain GPL.
|
||||
*/
|
||||
|
||||
|
||||
#include "sysdep.h"
|
||||
#include "asm-syntax.h"
|
||||
|
||||
|
||||
/*******************
|
||||
* mpi_limb_t
|
||||
* mpihelp_sub_n( mpi_ptr_t res_ptr, (sp + 4)
|
||||
* mpi_ptr_t s1_ptr, (sp + 8)
|
||||
* mpi_ptr_t s2_ptr, (sp + 12)
|
||||
* mpi_size_t size) (sp + 16)
|
||||
*/
|
||||
|
||||
|
||||
.text
|
||||
ALIGN (3)
|
||||
.globl C_SYMBOL_NAME(mpihelp_sub_n)
|
||||
C_SYMBOL_NAME(mpihelp_sub_n:)
|
||||
pushl %edi
|
||||
pushl %esi
|
||||
|
||||
movl 12(%esp),%edi /* res_ptr */
|
||||
movl 16(%esp),%esi /* s1_ptr */
|
||||
movl 20(%esp),%edx /* s2_ptr */
|
||||
movl 24(%esp),%ecx /* size */
|
||||
|
||||
movl %ecx,%eax
|
||||
shrl $3,%ecx /* compute count for unrolled loop */
|
||||
negl %eax
|
||||
andl $7,%eax /* get index where to start loop */
|
||||
jz Loop /* necessary special case for 0 */
|
||||
incl %ecx /* adjust loop count */
|
||||
shll $2,%eax /* adjustment for pointers... */
|
||||
subl %eax,%edi /* ... since they are offset ... */
|
||||
subl %eax,%esi /* ... by a constant when we ... */
|
||||
subl %eax,%edx /* ... enter the loop */
|
||||
shrl $2,%eax /* restore previous value */
|
||||
#ifdef PIC
|
||||
/* Calculate start address in loop for PIC. Due to limitations in some
|
||||
assemblers, Loop-L0-3 cannot be put into the leal */
|
||||
call L0
|
||||
L0: leal (%eax,%eax,8),%eax
|
||||
addl (%esp),%eax
|
||||
addl $(Loop-L0-3),%eax
|
||||
addl $4,%esp
|
||||
#else
|
||||
/* Calculate start address in loop for non-PIC. */
|
||||
leal (Loop - 3)(%eax,%eax,8),%eax
|
||||
#endif
|
||||
jmp *%eax /* jump into loop */
|
||||
ALIGN (3)
|
||||
Loop: movl (%esi),%eax
|
||||
sbbl (%edx),%eax
|
||||
movl %eax,(%edi)
|
||||
movl 4(%esi),%eax
|
||||
sbbl 4(%edx),%eax
|
||||
movl %eax,4(%edi)
|
||||
movl 8(%esi),%eax
|
||||
sbbl 8(%edx),%eax
|
||||
movl %eax,8(%edi)
|
||||
movl 12(%esi),%eax
|
||||
sbbl 12(%edx),%eax
|
||||
movl %eax,12(%edi)
|
||||
movl 16(%esi),%eax
|
||||
sbbl 16(%edx),%eax
|
||||
movl %eax,16(%edi)
|
||||
movl 20(%esi),%eax
|
||||
sbbl 20(%edx),%eax
|
||||
movl %eax,20(%edi)
|
||||
movl 24(%esi),%eax
|
||||
sbbl 24(%edx),%eax
|
||||
movl %eax,24(%edi)
|
||||
movl 28(%esi),%eax
|
||||
sbbl 28(%edx),%eax
|
||||
movl %eax,28(%edi)
|
||||
leal 32(%edi),%edi
|
||||
leal 32(%esi),%esi
|
||||
leal 32(%edx),%edx
|
||||
decl %ecx
|
||||
jnz Loop
|
||||
|
||||
sbbl %eax,%eax
|
||||
negl %eax
|
||||
|
||||
popl %esi
|
||||
popl %edi
|
||||
ret
|
||||
|
@ -1,68 +0,0 @@
|
||||
/* syntax.h -- Definitions for x86 syntax variations.
|
||||
*
|
||||
* Copyright (C) 1992, 1994, 1995, 1998,
|
||||
* 2001 Free Software Foundation, Inc.
|
||||
*
|
||||
* GnuPG is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* GnuPG is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
||||
*
|
||||
* Note: This code is heavily based on the GNU MP Library.
|
||||
* Actually it's the same code with only minor changes in the
|
||||
* way the data is stored; this is to support the abstraction
|
||||
* of an optional secure memory allocation which may be used
|
||||
* to avoid revealing of sensitive data due to paging etc.
|
||||
* The GNU MP Library itself is published under the LGPL;
|
||||
* however I decided to publish this code under the plain GPL.
|
||||
*/
|
||||
|
||||
#undef ALIGN
|
||||
|
||||
#if defined (BSD_SYNTAX) || defined (ELF_SYNTAX)
|
||||
#define R(r) %r
|
||||
#define MEM(base)(base)
|
||||
#define MEM_DISP(base,displacement)displacement(R(base))
|
||||
#define MEM_INDEX(base,index,size)(R(base),R(index),size)
|
||||
#ifdef __STDC__
|
||||
#define INSN1(mnemonic,size_suffix,dst)mnemonic##size_suffix dst
|
||||
#define INSN2(mnemonic,size_suffix,dst,src)mnemonic##size_suffix src,dst
|
||||
#else
|
||||
#define INSN1(mnemonic,size_suffix,dst)mnemonic/**/size_suffix dst
|
||||
#define INSN2(mnemonic,size_suffix,dst,src)mnemonic/**/size_suffix src,dst
|
||||
#endif
|
||||
#define TEXT .text
|
||||
#if defined (BSD_SYNTAX)
|
||||
#define ALIGN(log) .align log
|
||||
#endif
|
||||
#if defined (ELF_SYNTAX)
|
||||
#define ALIGN(log) .align 1<<(log)
|
||||
#endif
|
||||
#define GLOBL .globl
|
||||
#endif
|
||||
|
||||
#ifdef INTEL_SYNTAX
|
||||
#define R(r) r
|
||||
#define MEM(base)[base]
|
||||
#define MEM_DISP(base,displacement)[base+(displacement)]
|
||||
#define MEM_INDEX(base,index,size)[base+index*size]
|
||||
#define INSN1(mnemonic,size_suffix,dst)mnemonic dst
|
||||
#define INSN2(mnemonic,size_suffix,dst,src)mnemonic dst,src
|
||||
#define TEXT .text
|
||||
#define ALIGN(log) .align log
|
||||
#define GLOBL .globl
|
||||
#endif
|
||||
|
||||
#ifdef X86_BROKEN_ALIGN
|
||||
#undef ALIGN
|
||||
#define ALIGN(log) .align log,0x90
|
||||
#endif
|
Loading…
x
Reference in New Issue
Block a user