dnl  SPARC v8 mpn_mul_1 -- Multiply a limb vector with a single limb and
dnl  store the product in a second limb vector.

dnl  Copyright 1992, 1994, 1995, 2000 Free Software Foundation, Inc.

dnl  This file is part of the GNU MP Library.

dnl  The GNU MP Library is free software; you can redistribute it and/or modify
dnl  it under the terms of the GNU Lesser General Public License as published
dnl  by the Free Software Foundation; either version 3 of the License, or (at
dnl  your option) any later version.

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 Lesser General Public
dnl  License for more details.

dnl  You should have received a copy of the GNU Lesser General Public License
dnl  along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.


include(`../config.m4')

C INPUT PARAMETERS
C res_ptr	o0
C s1_ptr	o1
C size		o2
C s2_limb	o3

ASM_START()
PROLOGUE(mpn_mul_1)
	sll	%o2,4,%g1
	and	%g1,(4-1)<<4,%g1
ifdef(`PIC',
`	mov	%o7,%g4		C Save return address register
0:	call	1f
	add	%o7,L(1)-0b,%g3
1:	mov	%g4,%o7		C Restore return address register
',
`	sethi	%hi(L(1)),%g3
	or	%g3,%lo(L(1)),%g3
')
	jmp	%g3+%g1
	ld	[%o1+0],%o4	C 1
L(1):
L(L00):	add	%o0,-4,%o0
	add	%o1,-4,%o1
	b	L(loop00)	C 4, 8, 12, ...
	orcc	%g0,%g0,%g2
L(L01):	b	L(loop01)	C 1, 5, 9, ...
	orcc	%g0,%g0,%g2
	nop
	nop
L(L10):	add	%o0,-12,%o0	C 2, 6, 10, ...
	add	%o1,4,%o1
	b	L(loop10)
	orcc	%g0,%g0,%g2
	nop
L(L11):	add	%o0,-8,%o0	C 3, 7, 11, ...
	add	%o1,-8,%o1
	b	L(loop11)
	orcc	%g0,%g0,%g2

L(loop):
	addcc	%g3,%g2,%g3	C 1
	ld	[%o1+4],%o4	C 2
	st	%g3,[%o0+0]	C 1
	rd	%y,%g2		C 1
L(loop00):
	umul	%o4,%o3,%g3	C 2
	addxcc	%g3,%g2,%g3	C 2
	ld	[%o1+8],%o4	C 3
	st	%g3,[%o0+4]	C 2
	rd	%y,%g2		C 2
L(loop11):
	umul	%o4,%o3,%g3	C 3
	addxcc	%g3,%g2,%g3	C 3
	ld	[%o1+12],%o4	C 4
	add	%o1,16,%o1
	st	%g3,[%o0+8]	C 3
	rd	%y,%g2		C 3
L(loop10):
	umul	%o4,%o3,%g3	C 4
	addxcc	%g3,%g2,%g3	C 4
	ld	[%o1+0],%o4	C 1
	st	%g3,[%o0+12]	C 4
	add	%o0,16,%o0
	rd	%y,%g2		C 4
	addx	%g0,%g2,%g2
L(loop01):
	addcc	%o2,-4,%o2
	bg	L(loop)
	umul	%o4,%o3,%g3	C 1

	addcc	%g3,%g2,%g3	C 4
	st	%g3,[%o0+0]	C 4
	rd	%y,%g2		C 4

	retl
	addx	%g0,%g2,%o0
EPILOGUE(mpn_mul_1)