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-rw-r--r--sysdeps/sparc/sparc32/add_n.S294
1 files changed, 153 insertions, 141 deletions
diff --git a/sysdeps/sparc/sparc32/add_n.S b/sysdeps/sparc/sparc32/add_n.S
index 9852c256aa..5a6fccbbee 100644
--- a/sysdeps/sparc/sparc32/add_n.S
+++ b/sysdeps/sparc/sparc32/add_n.S
@@ -1,20 +1,20 @@
 ! SPARC __mpn_add_n -- Add two limb vectors of the same length > 0 and store
 ! sum in a third limb vector.
-
-! Copyright (C) 1995, 1996 Free Software Foundation, Inc.
-
+!
+! Copyright (C) 1995, 1996, 1997 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., 59 Temple Place - Suite 330, Boston,
@@ -22,205 +22,217 @@
 
 
 ! INPUT PARAMETERS
-#define res_ptr	%o0
-#define s1_ptr	%o1
-#define s2_ptr	%o2
-#define size	%o3
+#define RES_PTR	%o0
+#define S1_PTR	%o1
+#define S2_PTR	%o2
+#define SIZE	%o3
 
-#include "sysdep.h"
+#include <sysdep.h>
 
-	.text
-	.align	4
-	.global	C_SYMBOL_NAME(__mpn_add_n)
-C_SYMBOL_NAME(__mpn_add_n):
-	xor	s2_ptr,res_ptr,%g1
+ENTRY(__mpn_add_n)
+	xor	S2_PTR,RES_PTR,%g1
 	andcc	%g1,4,%g0
-	bne	L1			! branch if alignment differs
-	nop
+	bne	LOC(1)			! branch if alignment differs
+	 nop
 ! **  V1a  **
-L0:	andcc	res_ptr,4,%g0		! res_ptr unaligned? Side effect: cy=0
-	be	L_v1			! if no, branch
-	nop
-/* Add least significant limb separately to align res_ptr and s2_ptr */
-	ld	[s1_ptr],%g4
-	add	s1_ptr,4,s1_ptr
-	ld	[s2_ptr],%g2
-	add	s2_ptr,4,s2_ptr
-	add	size,-1,size
+LOC(0):	andcc	RES_PTR,4,%g0		! RES_PTR unaligned? Side effect: cy=0
+	be	LOC(v1)			! if no, branch
+	 nop
+/* Add least significant limb separately to align RES_PTR and S2_PTR */
+	ld	[S1_PTR],%g4
+	add	S1_PTR,4,S1_PTR
+	ld	[S2_PTR],%g2
+	add	S2_PTR,4,S2_PTR
+	add	SIZE,-1,SIZE
 	addcc	%g4,%g2,%o4
-	st	%o4,[res_ptr]
-	add	res_ptr,4,res_ptr
-L_v1:	addx	%g0,%g0,%o4		! save cy in register
-	cmp	size,2			! if size < 2 ...
-	bl	Lend2			! ... branch to tail code
+	st	%o4,[RES_PTR]
+	add	RES_PTR,4,RES_PTR
+LOC(v1):
+	addx	%g0,%g0,%o4		! save cy in register
+	cmp	SIZE,2			! if SIZE < 2 ...
+	bl	LOC(end2)		! ... branch to tail code
 	subcc	%g0,%o4,%g0		! restore cy
 
-	ld	[s1_ptr+0],%g4
-	addcc	size,-10,size
-	ld	[s1_ptr+4],%g1
-	ldd	[s2_ptr+0],%g2
-	blt	Lfin1
+	ld	[S1_PTR+0],%g4
+	addcc	SIZE,-10,SIZE
+	ld	[S1_PTR+4],%g1
+	ldd	[S2_PTR+0],%g2
+	blt	LOC(fin1)
 	subcc	%g0,%o4,%g0		! restore cy
 /* Add blocks of 8 limbs until less than 8 limbs remain */
-Loop1:	addxcc	%g4,%g2,%o4
-	ld	[s1_ptr+8],%g4
+LOC(loop1):
+	addxcc	%g4,%g2,%o4
+	ld	[S1_PTR+8],%g4
 	addxcc	%g1,%g3,%o5
-	ld	[s1_ptr+12],%g1
-	ldd	[s2_ptr+8],%g2
-	std	%o4,[res_ptr+0]
+	ld	[S1_PTR+12],%g1
+	ldd	[S2_PTR+8],%g2
+	std	%o4,[RES_PTR+0]
 	addxcc	%g4,%g2,%o4
-	ld	[s1_ptr+16],%g4
+	ld	[S1_PTR+16],%g4
 	addxcc	%g1,%g3,%o5
-	ld	[s1_ptr+20],%g1
-	ldd	[s2_ptr+16],%g2
-	std	%o4,[res_ptr+8]
+	ld	[S1_PTR+20],%g1
+	ldd	[S2_PTR+16],%g2
+	std	%o4,[RES_PTR+8]
 	addxcc	%g4,%g2,%o4
-	ld	[s1_ptr+24],%g4
+	ld	[S1_PTR+24],%g4
 	addxcc	%g1,%g3,%o5
-	ld	[s1_ptr+28],%g1
-	ldd	[s2_ptr+24],%g2
-	std	%o4,[res_ptr+16]
+	ld	[S1_PTR+28],%g1
+	ldd	[S2_PTR+24],%g2
+	std	%o4,[RES_PTR+16]
 	addxcc	%g4,%g2,%o4
-	ld	[s1_ptr+32],%g4
+	ld	[S1_PTR+32],%g4
 	addxcc	%g1,%g3,%o5
-	ld	[s1_ptr+36],%g1
-	ldd	[s2_ptr+32],%g2
-	std	%o4,[res_ptr+24]
+	ld	[S1_PTR+36],%g1
+	ldd	[S2_PTR+32],%g2
+	std	%o4,[RES_PTR+24]
 	addx	%g0,%g0,%o4		! save cy in register
-	addcc	size,-8,size
-	add	s1_ptr,32,s1_ptr
-	add	s2_ptr,32,s2_ptr
-	add	res_ptr,32,res_ptr
-	bge	Loop1
+	addcc	SIZE,-8,SIZE
+	add	S1_PTR,32,S1_PTR
+	add	S2_PTR,32,S2_PTR
+	add	RES_PTR,32,RES_PTR
+	bge	LOC(loop1)
 	subcc	%g0,%o4,%g0		! restore cy
 
-Lfin1:	addcc	size,8-2,size
-	blt	Lend1
+LOC(fin1):
+	addcc	SIZE,8-2,SIZE
+	blt	LOC(end1)
 	subcc	%g0,%o4,%g0		! restore cy
 /* Add blocks of 2 limbs until less than 2 limbs remain */
-Loope1:	addxcc	%g4,%g2,%o4
-	ld	[s1_ptr+8],%g4
+LOC(loope1):
+	addxcc	%g4,%g2,%o4
+	ld	[S1_PTR+8],%g4
 	addxcc	%g1,%g3,%o5
-	ld	[s1_ptr+12],%g1
-	ldd	[s2_ptr+8],%g2
-	std	%o4,[res_ptr+0]
+	ld	[S1_PTR+12],%g1
+	ldd	[S2_PTR+8],%g2
+	std	%o4,[RES_PTR+0]
 	addx	%g0,%g0,%o4		! save cy in register
-	addcc	size,-2,size
-	add	s1_ptr,8,s1_ptr
-	add	s2_ptr,8,s2_ptr
-	add	res_ptr,8,res_ptr
-	bge	Loope1
+	addcc	SIZE,-2,SIZE
+	add	S1_PTR,8,S1_PTR
+	add	S2_PTR,8,S2_PTR
+	add	RES_PTR,8,RES_PTR
+	bge	LOC(loope1)
 	subcc	%g0,%o4,%g0		! restore cy
-Lend1:	addxcc	%g4,%g2,%o4
+LOC(end1):
+	addxcc	%g4,%g2,%o4
 	addxcc	%g1,%g3,%o5
-	std	%o4,[res_ptr+0]
+	std	%o4,[RES_PTR+0]
 	addx	%g0,%g0,%o4		! save cy in register
 
-	andcc	size,1,%g0
-	be	Lret1
+	andcc	SIZE,1,%g0
+	be	LOC(ret1)
 	subcc	%g0,%o4,%g0		! restore cy
 /* Add last limb */
-	ld	[s1_ptr+8],%g4
-	ld	[s2_ptr+8],%g2
+	ld	[S1_PTR+8],%g4
+	ld	[S2_PTR+8],%g2
 	addxcc	%g4,%g2,%o4
-	st	%o4,[res_ptr+8]
+	st	%o4,[RES_PTR+8]
 
-Lret1:	retl
+LOC(ret1):
+	retl
 	addx	%g0,%g0,%o0	! return carry-out from most sign. limb
 
-L1:	xor	s1_ptr,res_ptr,%g1
+LOC(1):	xor	S1_PTR,RES_PTR,%g1
 	andcc	%g1,4,%g0
-	bne	L2
+	bne	LOC(2)
 	nop
 ! **  V1b  **
-	mov	s2_ptr,%g1
-	mov	s1_ptr,s2_ptr
-	b	L0
-	mov	%g1,s1_ptr
+	mov	S2_PTR,%g1
+	mov	S1_PTR,S2_PTR
+	b	LOC(0)
+	mov	%g1,S1_PTR
 
 ! **  V2  **
-/* If we come here, the alignment of s1_ptr and res_ptr as well as the
-   alignment of s2_ptr and res_ptr differ.  Since there are only two ways
+/* If we come here, the alignment of S1_PTR and RES_PTR as well as the
+   alignment of S2_PTR and RES_PTR differ.  Since there are only two ways
    things can be aligned (that we care about) we now know that the alignment
-   of s1_ptr and s2_ptr are the same.  */
+   of S1_PTR and S2_PTR are the same.  */
 
-L2:	cmp	size,1
-	be	Ljone
+LOC(2):	cmp	SIZE,1
+	be	LOC(jone)
 	nop
-	andcc	s1_ptr,4,%g0		! s1_ptr unaligned? Side effect: cy=0
-	be	L_v2			! if no, branch
+	andcc	S1_PTR,4,%g0		! S1_PTR unaligned? Side effect: cy=0
+	be	LOC(v2)			! if no, branch
 	nop
-/* Add least significant limb separately to align s1_ptr and s2_ptr */
-	ld	[s1_ptr],%g4
-	add	s1_ptr,4,s1_ptr
-	ld	[s2_ptr],%g2
-	add	s2_ptr,4,s2_ptr
-	add	size,-1,size
+/* Add least significant limb separately to align S1_PTR and S2_PTR */
+	ld	[S1_PTR],%g4
+	add	S1_PTR,4,S1_PTR
+	ld	[S2_PTR],%g2
+	add	S2_PTR,4,S2_PTR
+	add	SIZE,-1,SIZE
 	addcc	%g4,%g2,%o4
-	st	%o4,[res_ptr]
-	add	res_ptr,4,res_ptr
+	st	%o4,[RES_PTR]
+	add	RES_PTR,4,RES_PTR
 
-L_v2:	addx	%g0,%g0,%o4		! save cy in register
-	addcc	size,-8,size
-	blt	Lfin2
+LOC(v2):
+	addx	%g0,%g0,%o4		! save cy in register
+	addcc	SIZE,-8,SIZE
+	blt	LOC(fin2)
 	subcc	%g0,%o4,%g0		! restore cy
 /* Add blocks of 8 limbs until less than 8 limbs remain */
-Loop2:	ldd	[s1_ptr+0],%g2
-	ldd	[s2_ptr+0],%o4
+LOC(loop2):
+	ldd	[S1_PTR+0],%g2
+	ldd	[S2_PTR+0],%o4
 	addxcc	%g2,%o4,%g2
-	st	%g2,[res_ptr+0]
+	st	%g2,[RES_PTR+0]
 	addxcc	%g3,%o5,%g3
-	st	%g3,[res_ptr+4]
-	ldd	[s1_ptr+8],%g2
-	ldd	[s2_ptr+8],%o4
+	st	%g3,[RES_PTR+4]
+	ldd	[S1_PTR+8],%g2
+	ldd	[S2_PTR+8],%o4
 	addxcc	%g2,%o4,%g2
-	st	%g2,[res_ptr+8]
+	st	%g2,[RES_PTR+8]
 	addxcc	%g3,%o5,%g3
-	st	%g3,[res_ptr+12]
-	ldd	[s1_ptr+16],%g2
-	ldd	[s2_ptr+16],%o4
+	st	%g3,[RES_PTR+12]
+	ldd	[S1_PTR+16],%g2
+	ldd	[S2_PTR+16],%o4
 	addxcc	%g2,%o4,%g2
-	st	%g2,[res_ptr+16]
+	st	%g2,[RES_PTR+16]
 	addxcc	%g3,%o5,%g3
-	st	%g3,[res_ptr+20]
-	ldd	[s1_ptr+24],%g2
-	ldd	[s2_ptr+24],%o4
+	st	%g3,[RES_PTR+20]
+	ldd	[S1_PTR+24],%g2
+	ldd	[S2_PTR+24],%o4
 	addxcc	%g2,%o4,%g2
-	st	%g2,[res_ptr+24]
+	st	%g2,[RES_PTR+24]
 	addxcc	%g3,%o5,%g3
-	st	%g3,[res_ptr+28]
+	st	%g3,[RES_PTR+28]
 	addx	%g0,%g0,%o4		! save cy in register
-	addcc	size,-8,size
-	add	s1_ptr,32,s1_ptr
-	add	s2_ptr,32,s2_ptr
-	add	res_ptr,32,res_ptr
-	bge	Loop2
+	addcc	SIZE,-8,SIZE
+	add	S1_PTR,32,S1_PTR
+	add	S2_PTR,32,S2_PTR
+	add	RES_PTR,32,RES_PTR
+	bge	LOC(loop2)
 	subcc	%g0,%o4,%g0		! restore cy
 
-Lfin2:	addcc	size,8-2,size
-	blt	Lend2
+LOC(fin2):
+	addcc	SIZE,8-2,SIZE
+	blt	LOC(end2)
 	subcc	%g0,%o4,%g0		! restore cy
-Loope2:	ldd	[s1_ptr+0],%g2
-	ldd	[s2_ptr+0],%o4
+LOC(loope2):
+	ldd	[S1_PTR+0],%g2
+	ldd	[S2_PTR+0],%o4
 	addxcc	%g2,%o4,%g2
-	st	%g2,[res_ptr+0]
+	st	%g2,[RES_PTR+0]
 	addxcc	%g3,%o5,%g3
-	st	%g3,[res_ptr+4]
+	st	%g3,[RES_PTR+4]
 	addx	%g0,%g0,%o4		! save cy in register
-	addcc	size,-2,size
-	add	s1_ptr,8,s1_ptr
-	add	s2_ptr,8,s2_ptr
-	add	res_ptr,8,res_ptr
-	bge	Loope2
+	addcc	SIZE,-2,SIZE
+	add	S1_PTR,8,S1_PTR
+	add	S2_PTR,8,S2_PTR
+	add	RES_PTR,8,RES_PTR
+	bge	LOC(loope2)
 	subcc	%g0,%o4,%g0		! restore cy
-Lend2:	andcc	size,1,%g0
-	be	Lret2
+LOC(end2):
+	andcc	SIZE,1,%g0
+	be	LOC(ret2)
 	subcc	%g0,%o4,%g0		! restore cy
 /* Add last limb */
-Ljone:	ld	[s1_ptr],%g4
-	ld	[s2_ptr],%g2
+LOC(jone):
+	ld	[S1_PTR],%g4
+	ld	[S2_PTR],%g2
 	addxcc	%g4,%g2,%o4
-	st	%o4,[res_ptr]
+	st	%o4,[RES_PTR]
 
-Lret2:	retl
+LOC(ret2):
+	retl
 	addx	%g0,%g0,%o0	! return carry-out from most sign. limb
+
+END(__mpn_add_n)
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-07-11 22:29:05 +0000