dnl  x86 mpn_mul_1 (for 386, 486, and Pentium Pro) -- Multiply a limb vector

dnl  with a limb and store the result in a second limb vector.

dnl  Copyright 1992, 1994, 1997-2002, 2005 Free Software Foundation, Inc.

dnl  This file is part of the GNU MP Library.

dnl

dnl  The GNU MP Library is free software; you can redistribute it and/or modify

dnl  it under the terms of either:

dnl

dnl    * the GNU Lesser General Public License as published by the Free

dnl      Software Foundation; either version 3 of the License, or (at your

dnl      option) any later version.

dnl

dnl  or

dnl

dnl    * the GNU General Public License as published by the Free Software

dnl      Foundation; either version 2 of the License, or (at your option) any

dnl      later version.

dnl

dnl  or both in parallel, as here.

dnl

dnl  The GNU MP Library is distributed in the hope that it will be useful, but

dnl  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY

dnl  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

dnl  for more details.

dnl

dnl  You should have received copies of the GNU General Public License and the

dnl  GNU Lesser General Public License along with the GNU MP Library.  If not,

dnl  see https://www.gnu.org/licenses/.

include(`../config.m4')

C			    cycles/limb

C P5				12.5

C P6 model 0-8,10-12		 5.5

C P6 model 9  (Banias)

C P6 model 13 (Dothan)		 5.25

C P4 model 0  (Willamette)	19.0

C P4 model 1  (?)		19.0

C P4 model 2  (Northwood)	19.0

C P4 model 3  (Prescott)

C P4 model 4  (Nocona)

C AMD K6			10.5

C AMD K7			 4.5

C AMD K8

C mp_limb_t mpn_mul_1 (mp_ptr dst, mp_srcptr src, mp_size_t size,

C                      mp_limb_t multiplier);

defframe(PARAM_MULTIPLIER,16)

defframe(PARAM_SIZE,      12)

defframe(PARAM_SRC,       8)

defframe(PARAM_DST,       4)

	TEXT

	ALIGN(8)

PROLOGUE(mpn_mul_1)

deflit(`FRAME',0)

	pushl	%edi

	pushl	%esi

	pushl	%ebx

	pushl	%ebp

deflit(`FRAME',16)

	movl	PARAM_DST,%edi

	movl	PARAM_SRC,%esi

	movl	PARAM_SIZE,%ecx

	xorl	%ebx,%ebx

	andl	$3,%ecx

	jz	L(end0)

L(oop0):

	movl	(%esi),%eax

	mull	PARAM_MULTIPLIER

	leal	4(%esi),%esi

	addl	%ebx,%eax

	movl	$0,%ebx

	adcl	%ebx,%edx

	movl	%eax,(%edi)

	movl	%edx,%ebx	C propagate carry into cylimb

	leal	4(%edi),%edi

	decl	%ecx

	jnz	L(oop0)

L(end0):

	movl	PARAM_SIZE,%ecx

	shrl	$2,%ecx

	jz	L(end)

	ALIGN(8)

L(oop):	movl	(%esi),%eax

	mull	PARAM_MULTIPLIER

	addl	%eax,%ebx

	movl	$0,%ebp

	adcl	%edx,%ebp

	movl	4(%esi),%eax

	mull	PARAM_MULTIPLIER

	movl	%ebx,(%edi)

	addl	%eax,%ebp	C new lo + cylimb

	movl	$0,%ebx

	adcl	%edx,%ebx

	movl	8(%esi),%eax

	mull	PARAM_MULTIPLIER

	movl	%ebp,4(%edi)

	addl	%eax,%ebx	C new lo + cylimb

	movl	$0,%ebp

	adcl	%edx,%ebp

	movl	12(%esi),%eax

	mull	PARAM_MULTIPLIER

	movl	%ebx,8(%edi)

	addl	%eax,%ebp	C new lo + cylimb

	movl	$0,%ebx

	adcl	%edx,%ebx

	movl	%ebp,12(%edi)

	leal	16(%esi),%esi

	leal	16(%edi),%edi

	decl	%ecx

	jnz	L(oop)

L(end):	movl	%ebx,%eax

	popl	%ebp

	popl	%ebx

	popl	%esi

	popl	%edi

	ret

EPILOGUE()