initial import

1 files changed, 198 insertions, 0 deletions

diff --git a/sysdeps/sparc/mul_1.S b/sysdeps/sparc/mul_1.S
new file mode 100644
index 0000000000..84aa12bb41
--- /dev/null
+++ b/sysdeps/sparc/mul_1.S
@@ -0,0 +1,198 @@
+! SPARC __mpn_mul_1 -- Multiply a limb vector with a limb and store
+! the result in a second limb vector.
+
+! Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
+
+! This file is part of the GNU MP Library.
+
+! The GNU MP Library is free software; you can redistribute it and/or modify
+! it under the terms of the GNU Library General Public License as published by
+! the Free Software Foundation; either version 2 of the License, or (at your
+! option) any later version.
+
+! The GNU MP Library 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 Library General Public
+! License for more details.
+
+! You should have received a copy of the GNU Library General Public License
+! along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
+! the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+
+! INPUT PARAMETERS
+! res_ptr	o0
+! s1_ptr	o1
+! size		o2
+! s2_limb	o3
+
+! ADD CODE FOR SMALL MULTIPLIERS!
+!1:	ld
+!	st
+!
+!2:	ld	,a
+!	addxcc	a,a,x
+!	st	x,
+!
+!3_unrolled:
+!	ld	,a
+!	addxcc	a,a,x1		! 2a + cy
+!	addx	%g0,%g0,x2
+!	addcc	a,x1,x		! 3a + c
+!	st	x,
+!
+!	ld	,a
+!	addxcc	a,a,y1
+!	addx	%g0,%g0,y2
+!	addcc	a,y1,x
+!	st	x,
+!
+!4_unrolled:
+!	ld	,a
+!	srl	a,2,x1		! 4a
+!	addxcc	y2,x1,x
+!	sll	a,30,x2
+!	st	x,
+!
+!	ld	,a
+!	srl	a,2,y1
+!	addxcc	x2,y1,y
+!	sll	a,30,y2
+!	st	x,
+!
+!5_unrolled:
+!	ld	,a
+!	srl	a,2,x1		! 4a
+!	addxcc	a,x1,x		! 5a + c
+!	sll	a,30,x2
+!	addx	%g0,x2,x2
+!	st	x,
+!
+!	ld	,a
+!	srl	a,2,y1
+!	addxcc	a,y1,x
+!	sll	a,30,y2
+!	addx	%g0,y2,y2
+!	st	x,
+!
+!8_unrolled:
+!	ld	,a
+!	srl	a,3,x1		! 8a
+!	addxcc	y2,x1,x
+!	sll	a,29,x2
+!	st	x,
+!
+!	ld	,a
+!	srl	a,3,y1
+!	addxcc	x2,y1,y
+!	sll	a,29,y2
+!	st	x,
+
+#include "sysdep.h"
+
+.text
+	.align 4
+	.global	C_SYMBOL_NAME(__mpn_mul_1)
+C_SYMBOL_NAME(__mpn_mul_1):
+	! Make S1_PTR and RES_PTR point at the end of their blocks
+	! and put (- 4 x SIZE) in index/loop counter.
+	sll	%o2,2,%o2
+	add	%o0,%o2,%o4	! RES_PTR in o4 since o0 is retval
+	add	%o1,%o2,%o1
+	sub	%g0,%o2,%o2
+
+	cmp	%o3,0xfff
+	bgu	Large
+	nop
+
+	ld	[%o1+%o2],%o5
+	mov	0,%o0
+	b	L0
+	 add	%o4,-4,%o4
+Loop0:
+	st	%g1,[%o4+%o2]
+L0:	wr	%g0,%o3,%y
+	sra	%o5,31,%g2
+	and	%o3,%g2,%g2
+	andcc	%g1,0,%g1
+	mulscc	%g1,%o5,%g1
+ 	mulscc	%g1,%o5,%g1
+ 	mulscc	%g1,%o5,%g1
+ 	mulscc	%g1,%o5,%g1
+	mulscc	%g1,%o5,%g1
+	mulscc	%g1,%o5,%g1
+	mulscc	%g1,%o5,%g1
+	mulscc	%g1,%o5,%g1
+	mulscc	%g1,%o5,%g1
+	mulscc	%g1,%o5,%g1
+	mulscc	%g1,%o5,%g1
+	mulscc	%g1,%o5,%g1
+	mulscc	%g1,0,%g1
+	sra	%g1,20,%g4
+	sll	%g1,12,%g1
+ 	rd	%y,%g3
+	srl	%g3,20,%g3
+	or	%g1,%g3,%g1
+
+	addcc	%g1,%o0,%g1
+	addx	%g2,%g4,%o0	! add sign-compensation and cy to hi limb
+	addcc	%o2,4,%o2	! loop counter
+	bne,a	Loop0
+	 ld	[%o1+%o2],%o5
+
+	retl
+	st	%g1,[%o4+%o2]
+
+
+Large:	ld	[%o1+%o2],%o5
+	mov	0,%o0
+	sra	%o3,31,%g4	! g4 = mask of ones iff S2_LIMB < 0
+	b	L1
+	 add	%o4,-4,%o4
+Loop:
+	st	%g3,[%o4+%o2]
+L1:	wr	%g0,%o5,%y
+	and	%o5,%g4,%g2	! g2 = S1_LIMB iff S2_LIMB < 0, else 0
+	andcc	%g0,%g0,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%o3,%g1
+	mulscc	%g1,%g0,%g1
+	rd	%y,%g3
+	addcc	%g3,%o0,%g3
+	addx	%g2,%g1,%o0	! add sign-compensation and cy to hi limb
+	addcc	%o2,4,%o2	! loop counter
+	bne,a	Loop
+	 ld	[%o1+%o2],%o5
+
+	retl
+	st	%g3,[%o4+%o2]