add-key works

3 files changed, 233 insertions, 199 deletions

diff --git a/mpi/i586/distfiles b/mpi/i586/distfiles
index 951480fd..8f821fbf 100644
--- a/mpi/i586/distfiles
+++ b/mpi/i586/distfiles
@@ -2,7 +2,8 @@ mpih-add1.S
 mpih-mul1.S
 mpih-mul2.S
 mpih-mul3.S
-mpih-shift.S
+mpih-lshift.S
+mpih-rshift.S
 mpih-sub1.S
 README
 
diff --git a/mpi/i586/mpih-lshift.S b/mpi/i586/mpih-lshift.S
new file mode 100644
index 00000000..9e0cb029
--- /dev/null
+++ b/mpi/i586/mpih-lshift.S
@@ -0,0 +1,230 @@
+/* i80586   lshift
+ *	Copyright (C) 1998 Free Software Foundation, Inc.
+ *	Copyright (C) 1992, 1994 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_lshift( 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_lshift)
+C_SYMBOL_NAME(mpihelp_lshift:)
+
+	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 */
+
+/* We can use faster code for shift-by-1 under certain conditions.  */
+	cmp	$1,%ecx
+	jne	Lnormal
+	leal	4(%esi),%eax
+	cmpl	%edi,%eax
+	jnc	Lspecial		/* jump if s_ptr + 1 >= res_ptr */
+	leal	(%esi,%ebp,4),%eax
+	cmpl	%eax,%edi
+	jnc	Lspecial		/* jump if res_ptr >= s_ptr + size */
+
+Lnormal:
+	leal	-4(%edi,%ebp,4),%edi
+	leal	-4(%esi,%ebp,4),%esi
+
+	movl	(%esi),%edx
+	subl	$4,%esi
+	xorl	%eax,%eax
+	shldl	%cl,%edx,%eax		/* compute carry limb */
+	pushl	%eax			/* push carry limb onto stack */
+
+	decl	%ebp
+	pushl	%ebp
+	shrl	$3,%ebp
+	jz	Lend
+
+	movl	(%edi),%eax		/* fetch destination cache line */
+
+	ALIGN	(2)
+Loop:	movl	-28(%edi),%eax		/* fetch destination cache line */
+	movl	%edx,%ebx
+
+	movl	(%esi),%eax
+	movl	-4(%esi),%edx
+	shldl	%cl,%eax,%ebx
+	shldl	%cl,%edx,%eax
+	movl	%ebx,(%edi)
+	movl	%eax,-4(%edi)
+
+	movl	-8(%esi),%ebx
+	movl	-12(%esi),%eax
+	shldl	%cl,%ebx,%edx
+	shldl	%cl,%eax,%ebx
+	movl	%edx,-8(%edi)
+	movl	%ebx,-12(%edi)
+
+	movl	-16(%esi),%edx
+	movl	-20(%esi),%ebx
+	shldl	%cl,%edx,%eax
+	shldl	%cl,%ebx,%edx
+	movl	%eax,-16(%edi)
+	movl	%edx,-20(%edi)
+
+	movl	-24(%esi),%eax
+	movl	-28(%esi),%edx
+	shldl	%cl,%eax,%ebx
+	shldl	%cl,%edx,%eax
+	movl	%ebx,-24(%edi)
+	movl	%eax,-28(%edi)
+
+	subl	$32,%esi
+	subl	$32,%edi
+	decl	%ebp
+	jnz	Loop
+
+Lend:	popl	%ebp
+	andl	$7,%ebp
+	jz	Lend2
+Loop2:	movl	(%esi),%eax
+	shldl	%cl,%eax,%edx
+	movl	%edx,(%edi)
+	movl	%eax,%edx
+	subl	$4,%esi
+	subl	$4,%edi
+	decl	%ebp
+	jnz	Loop2
+
+Lend2:	shll	%cl,%edx		/* compute least significant limb */
+	movl	%edx,(%edi)		/* store it */
+
+	popl	%eax			/* pop carry limb */
+
+	popl	%ebp
+	popl	%ebx
+	popl	%esi
+	popl	%edi
+	ret
+
+/* We loop from least significant end of the arrays, which is only
+   permissable if the source and destination don't overlap, since the
+   function is documented to work for overlapping source and destination.
+*/
+
+Lspecial:
+	movl	(%esi),%edx
+	addl	$4,%esi
+
+	decl	%ebp
+	pushl	%ebp
+	shrl	$3,%ebp
+
+	addl	%edx,%edx
+	incl	%ebp
+	decl	%ebp
+	jz	LLend
+
+	movl	(%edi),%eax		/* fetch destination cache line */
+
+	ALIGN	(2)
+LLoop:	movl	28(%edi),%eax		/* fetch destination cache line */
+	movl	%edx,%ebx
+
+	movl	(%esi),%eax
+	movl	4(%esi),%edx
+	adcl	%eax,%eax
+	movl	%ebx,(%edi)
+	adcl	%edx,%edx
+	movl	%eax,4(%edi)
+
+	movl	8(%esi),%ebx
+	movl	12(%esi),%eax
+	adcl	%ebx,%ebx
+	movl	%edx,8(%edi)
+	adcl	%eax,%eax
+	movl	%ebx,12(%edi)
+
+	movl	16(%esi),%edx
+	movl	20(%esi),%ebx
+	adcl	%edx,%edx
+	movl	%eax,16(%edi)
+	adcl	%ebx,%ebx
+	movl	%edx,20(%edi)
+
+	movl	24(%esi),%eax
+	movl	28(%esi),%edx
+	adcl	%eax,%eax
+	movl	%ebx,24(%edi)
+	adcl	%edx,%edx
+	movl	%eax,28(%edi)
+
+	leal	32(%esi),%esi		/* use leal not to clobber carry */
+	leal	32(%edi),%edi
+	decl	%ebp
+	jnz	LLoop
+
+LLend:	popl	%ebp
+	sbbl	%eax,%eax		/* save carry in %eax */
+	andl	$7,%ebp
+	jz	LLend2
+	addl	%eax,%eax		/* restore carry from eax */
+LLoop2: movl	%edx,%ebx
+	movl	(%esi),%edx
+	adcl	%edx,%edx
+	movl	%ebx,(%edi)
+
+	leal	4(%esi),%esi		/* use leal not to clobber carry */
+	leal	4(%edi),%edi
+	decl	%ebp
+	jnz	LLoop2
+
+	jmp	LL1
+LLend2: addl	%eax,%eax		/* restore carry from eax */
+LL1:	movl	%edx,(%edi)		/* store last limb */
+
+	sbbl	%eax,%eax
+	negl	%eax
+
+	popl	%ebp
+	popl	%ebx
+	popl	%esi
+	popl	%edi
+	ret
+
+
diff --git a/mpi/i586/mpih-shift.S b/mpi/i586/mpih-rshift.S
index 07d5fbc8..aec26e64 100644
--- a/mpi/i586/mpih-shift.S
+++ b/mpi/i586/mpih-rshift.S
@@ -1,4 +1,4 @@
-/* i80586   rshift, lshift
+/* i80586   rshift
  *	Copyright (C) 1998 Free Software Foundation, Inc.
  *	Copyright (C) 1992, 1994 Free Software Foundation, Inc.
  *
@@ -32,203 +32,6 @@
 #include "asm-syntax.h"
 
 
-/*******************
- * mpi_limb_t
- * mpihelp_lshift( 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_lshift)
-C_SYMBOL_NAME(mpihelp_lshift:)
-
-	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 */
-
-/* We can use faster code for shift-by-1 under certain conditions.  */
-	cmp	$1,%ecx
-	jne	Lnormal
-	leal	4(%esi),%eax
-	cmpl	%edi,%eax
-	jnc	Lspecial		/* jump if s_ptr + 1 >= res_ptr */
-	leal	(%esi,%ebp,4),%eax
-	cmpl	%eax,%edi
-	jnc	Lspecial		/* jump if res_ptr >= s_ptr + size */
-
-Lnormal:
-	leal	-4(%edi,%ebp,4),%edi
-	leal	-4(%esi,%ebp,4),%esi
-
-	movl	(%esi),%edx
-	subl	$4,%esi
-	xorl	%eax,%eax
-	shldl	%cl,%edx,%eax		/* compute carry limb */
-	pushl	%eax			/* push carry limb onto stack */
-
-	decl	%ebp
-	pushl	%ebp
-	shrl	$3,%ebp
-	jz	Lend
-
-	movl	(%edi),%eax		/* fetch destination cache line */
-
-	ALIGN	(2)
-Loop:	movl	-28(%edi),%eax		/* fetch destination cache line */
-	movl	%edx,%ebx
-
-	movl	(%esi),%eax
-	movl	-4(%esi),%edx
-	shldl	%cl,%eax,%ebx
-	shldl	%cl,%edx,%eax
-	movl	%ebx,(%edi)
-	movl	%eax,-4(%edi)
-
-	movl	-8(%esi),%ebx
-	movl	-12(%esi),%eax
-	shldl	%cl,%ebx,%edx
-	shldl	%cl,%eax,%ebx
-	movl	%edx,-8(%edi)
-	movl	%ebx,-12(%edi)
-
-	movl	-16(%esi),%edx
-	movl	-20(%esi),%ebx
-	shldl	%cl,%edx,%eax
-	shldl	%cl,%ebx,%edx
-	movl	%eax,-16(%edi)
-	movl	%edx,-20(%edi)
-
-	movl	-24(%esi),%eax
-	movl	-28(%esi),%edx
-	shldl	%cl,%eax,%ebx
-	shldl	%cl,%edx,%eax
-	movl	%ebx,-24(%edi)
-	movl	%eax,-28(%edi)
-
-	subl	$32,%esi
-	subl	$32,%edi
-	decl	%ebp
-	jnz	Loop
-
-Lend:	popl	%ebp
-	andl	$7,%ebp
-	jz	Lend2
-Loop2:	movl	(%esi),%eax
-	shldl	%cl,%eax,%edx
-	movl	%edx,(%edi)
-	movl	%eax,%edx
-	subl	$4,%esi
-	subl	$4,%edi
-	decl	%ebp
-	jnz	Loop2
-
-Lend2:	shll	%cl,%edx		/* compute least significant limb */
-	movl	%edx,(%edi)		/* store it */
-
-	popl	%eax			/* pop carry limb */
-
-	popl	%ebp
-	popl	%ebx
-	popl	%esi
-	popl	%edi
-	ret
-
-/* We loop from least significant end of the arrays, which is only
-   permissable if the source and destination don't overlap, since the
-   function is documented to work for overlapping source and destination.
-*/
-
-Lspecial:
-	movl	(%esi),%edx
-	addl	$4,%esi
-
-	decl	%ebp
-	pushl	%ebp
-	shrl	$3,%ebp
-
-	addl	%edx,%edx
-	incl	%ebp
-	decl	%ebp
-	jz	LLend
-
-	movl	(%edi),%eax		/* fetch destination cache line */
-
-	ALIGN	(2)
-LLoop:	movl	28(%edi),%eax		/* fetch destination cache line */
-	movl	%edx,%ebx
-
-	movl	(%esi),%eax
-	movl	4(%esi),%edx
-	adcl	%eax,%eax
-	movl	%ebx,(%edi)
-	adcl	%edx,%edx
-	movl	%eax,4(%edi)
-
-	movl	8(%esi),%ebx
-	movl	12(%esi),%eax
-	adcl	%ebx,%ebx
-	movl	%edx,8(%edi)
-	adcl	%eax,%eax
-	movl	%ebx,12(%edi)
-
-	movl	16(%esi),%edx
-	movl	20(%esi),%ebx
-	adcl	%edx,%edx
-	movl	%eax,16(%edi)
-	adcl	%ebx,%ebx
-	movl	%edx,20(%edi)
-
-	movl	24(%esi),%eax
-	movl	28(%esi),%edx
-	adcl	%eax,%eax
-	movl	%ebx,24(%edi)
-	adcl	%edx,%edx
-	movl	%eax,28(%edi)
-
-	leal	32(%esi),%esi		/* use leal not to clobber carry */
-	leal	32(%edi),%edi
-	decl	%ebp
-	jnz	LLoop
-
-LLend:	popl	%ebp
-	sbbl	%eax,%eax		/* save carry in %eax */
-	andl	$7,%ebp
-	jz	LLend2
-	addl	%eax,%eax		/* restore carry from eax */
-LLoop2: movl	%edx,%ebx
-	movl	(%esi),%edx
-	adcl	%edx,%edx
-	movl	%ebx,(%edi)
-
-	leal	4(%esi),%esi		/* use leal not to clobber carry */
-	leal	4(%edi),%edi
-	decl	%ebp
-	jnz	LLoop2
-
-	jmp	LL1
-LLend2: addl	%eax,%eax		/* restore carry from eax */
-LL1:	movl	%edx,(%edi)		/* store last limb */
-
-	sbbl	%eax,%eax
-	negl	%eax
-
-	popl	%ebp
-	popl	%ebx
-	popl	%esi
-	popl	%edi
-	ret
-
-
-
 
 /*******************
  * mpi_limb_t