1 files changed, 453 insertions, 0 deletions
diff --git a/grub-core/lib/libgcrypt/mpi/pentium4/mmx/mpih-rshift.S b/grub-core/lib/libgcrypt/mpi/pentium4/mmx/mpih-rshift.S
new file mode 100644
index 0000000..e3374e3
--- /dev/null
+++ b/grub-core/lib/libgcrypt/mpi/pentium4/mmx/mpih-rshift.S
@@ -0,0 +1,453 @@
+/* Intel Pentium-4 mpn_rshift -- right shift.
+ *
+ * Copyright 2001, 2002 Free Software Foundation, Inc.
+ *
+ * This file is part of Libgcrypt.
+ *
+ * Libgcrypt is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * Libgcrypt 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser 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.
+ */
+
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+
+/*******************
+ * mpi_limb_t
+ * _gcry_mpih_rshift( mpi_ptr_t wp,	(sp + 4)
+ *		   mpi_ptr_t up,	(sp + 8)
+ *		   mpi_size_t usize,	(sp + 12)
+ *		   unsigned cnt)	(sp + 16)
+ *
+ * P4 Willamette, Northwood: 1.75 cycles/limb
+ * P4 Prescott:		     2.0 cycles/limb
+ */
+
+.text
+	ALIGN (3)
+	.globl C_SYMBOL_NAME(_gcry_mpih_rshift)
+C_SYMBOL_NAME(_gcry_mpih_rshift:)
+	pushl	%ebx
+	pushl	%edi
+
+
+	movl	20(%esp), %eax
+	movl	12(%esp), %edx
+
+	movl	16(%esp), %ebx
+	movl	24(%esp), %ecx
+
+	cmp	$5, %eax
+	jae	.Lunroll
+
+	decl	%eax
+	movl	(%ebx), %edi		
+
+	jnz	.Lsimple
+
+	shrdl	%cl, %edi, %eax	
+
+	shrl	%cl, %edi
+
+	movl	%edi, (%edx)		
+	popl	%edi			
+
+	popl	%ebx
+
+	ret
+
+
+
+
+
+	.align	8, 0x90
+.Lsimple:
+	
+	
+	
+	
+	
+	
+	
+
+
+	movd	(%ebx), %mm5		
+	leal	(%ebx,%eax,4), %ebx	
+
+	movd	%ecx, %mm6		
+	leal	-4(%edx,%eax,4), %edx	
+
+	psllq	$32, %mm5
+	negl	%eax
+
+
+
+
+
+
+
+.Lsimple_top:
+	
+	
+	
+	
+	
+	
+	
+	
+
+	movq	(%ebx,%eax,4), %mm0
+	incl	%eax
+
+	psrlq	%mm6, %mm0
+
+	movd	%mm0, (%edx,%eax,4)
+	jnz	.Lsimple_top
+
+
+	movd	(%ebx), %mm0
+	psrlq	%mm6, %mm5		
+
+	psrlq	%mm6, %mm0
+	popl	%edi
+
+	movd	%mm5, %eax
+	popl	%ebx
+
+	movd	%mm0, 4(%edx)
+
+	emms
+
+	ret
+
+
+
+
+
+	.align	8, 0x90
+.Lunroll:
+	
+	
+	
+	
+	
+	
+	
+
+
+	movd	(%ebx), %mm5		
+	movl	$4, %edi
+
+	movd	%ecx, %mm6		
+	testl	%edi, %ebx
+
+	psllq	$32, %mm5
+	jz	.Lstart_src_aligned
+
+
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+
+	movq	(%ebx), %mm0		
+
+	psrlq	%mm6, %mm0
+	addl	$4, %ebx
+
+	decl	%eax
+
+	movd	%mm0, (%edx)
+	addl	$4, %edx
+.Lstart_src_aligned:
+
+
+	movq	(%ebx), %mm1
+	testl	%edi, %edx
+
+	psrlq	%mm6, %mm5		
+	jz	.Lstart_dst_aligned
+
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+
+	movq	%mm1, %mm0
+	addl	$32, %ecx		
+
+	psrlq	%mm6, %mm0
+
+	movd	%ecx, %mm6
+
+	movd	%mm0, (%edx)
+	addl	$4, %edx
+.Lstart_dst_aligned:
+
+
+	movq	8(%ebx), %mm3
+	negl	%ecx
+
+	movq	%mm3, %mm2		
+	addl	$64, %ecx
+
+	movd	%ecx, %mm7
+	psrlq	%mm6, %mm1
+
+	leal	-12(%ebx,%eax,4), %ebx
+	leal	-20(%edx,%eax,4), %edx
+
+	psllq	%mm7, %mm3
+	subl	$7, %eax		
+
+	por	%mm1, %mm3		
+	negl	%eax			
+
+	jns	.Lfinish
+
+
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+
+	.align	8, 0x90
+.Lunroll_loop:
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+
+	movq	(%ebx,%eax,4), %mm0
+	psrlq	%mm6, %mm2
+
+	movq	%mm0, %mm1
+	psllq	%mm7, %mm0
+
+	movq	%mm3, -8(%edx,%eax,4)	
+	por	%mm2, %mm0
+
+	movq	8(%ebx,%eax,4), %mm3	
+	psrlq	%mm6, %mm1		
+
+	movq	%mm0, (%edx,%eax,4)
+	movq	%mm3, %mm2		
+
+	psllq	%mm7, %mm3		
+	addl	$4, %eax
+
+	por	%mm1, %mm3		
+	js	.Lunroll_loop
+
+
+.Lfinish:
+	
+
+	testb	$2, %al
+
+	jnz	.Lfinish_no_two
+
+	movq	(%ebx,%eax,4), %mm0
+	psrlq	%mm6, %mm2
+
+	movq	%mm0, %mm1
+	psllq	%mm7, %mm0
+
+	movq	%mm3, -8(%edx,%eax,4)	
+	por	%mm2, %mm0
+
+	movq	%mm1, %mm2
+	movq	%mm0, %mm3
+
+	addl	$2, %eax
+.Lfinish_no_two:
+
+
+	
+	
+	
+	
+
+	testb	$1, %al
+	popl	%edi
+
+	movd	%mm5, %eax	
+	jnz	.Lfinish_zero
+
+
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+
+
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+
+
+	
+	
+	
+
+
+	movd	8(%ebx), %mm0
+	psrlq	%mm6, %mm2
+
+	movq	%mm0, %mm1
+	psllq	%mm7, %mm0
+
+	movq	%mm3, (%edx)
+	por	%mm2, %mm0
+
+	psrlq	%mm6, %mm1
+	andl	$32, %ecx
+
+	popl	%ebx
+	jz	.Lfinish_one_unaligned
+
+	
+	movd	%mm1, 16(%edx)
+.Lfinish_one_unaligned:
+
+	movq	%mm0, 8(%edx)
+
+	emms
+
+	ret
+
+
+
+
+.Lfinish_zero:
+
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+
+
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+
+
+	
+	
+	
+
+
+	movq	%mm3, 4(%edx)
+	psrlq	%mm6, %mm2
+
+	movd	%mm2, 12(%edx)
+	andl	$32, %ecx
+
+	popl	%ebx
+	jz	.Lfinish_zero_unaligned
+
+	movq	%mm2, 12(%edx)
+.Lfinish_zero_unaligned:
+
+	emms
+
+	ret