patch-2.4.11-dontuse linux/arch/cris/lib/checksum.S

• Lines: 177
• Date: Mon Oct 8 11:43:54 2001
• Orig file: v2.4.10/linux/arch/cris/lib/checksum.S
• Orig date: Wed Jul 25 17:10:17 2001

diff -u --recursive --new-file v2.4.10/linux/arch/cris/lib/checksum.S linux/arch/cris/lib/checksum.S
@@ -1,12 +1,12 @@
-/* $Id: checksum.S,v 1.5 2001/05/29 11:40:14 markusl Exp $
+/* $Id: checksum.S,v 1.6 2001/10/01 14:47:35 bjornw Exp $
  * A fast checksum routine using movem
  * Copyright (c) 1998-2001 Axis Communications AB
  *
  * csum_partial(const unsigned char * buff, int len, unsigned int sum)
  */
 
-	.globl	_csum_partial
-_csum_partial:
+	.globl	csum_partial
+csum_partial:
 	
 	;; r10 - src
 	;; r11 - length
@@ -16,8 +16,8 @@
 	;; we also do _NOT_ want to compute a checksum over more than the 
 	;; actual length when length < 40
 	
-	cmpu.w	80,r11
-	blo	word_loop
+	cmpu.w	80,$r11
+	blo	_word_loop
 	nop
 
 	;; need to save the registers we use below in the movem loop
@@ -25,100 +25,100 @@
 	;; only r0 - r8 have to be saved, the other ones are clobber-able
 	;; according to the ABI
 	
-	subq	9*4,sp
-	movem	r8,[sp]
+	subq	9*4,$sp
+	movem	$r8,[$sp]
 	
 	;; do a movem checksum
 
-	subq	10*4,r11	; update length for the first loop
+	subq	10*4,$r11	; update length for the first loop
 	
-mloop:	movem	[r10+],r9	; read 10 longwords
+_mloop:	movem	[$r10+],$r9	; read 10 longwords
 
 	;; perform dword checksumming on the 10 longwords
 	
-	add.d	r0,r12
+	add.d	$r0,$r12
 	ax
-	add.d	r1,r12
+	add.d	$r1,$r12
 	ax
-	add.d	r2,r12
+	add.d	$r2,$r12
 	ax
-	add.d	r3,r12
+	add.d	$r3,$r12
 	ax
-	add.d	r4,r12
+	add.d	$r4,$r12
 	ax
-	add.d	r5,r12
+	add.d	$r5,$r12
 	ax
-	add.d	r6,r12
+	add.d	$r6,$r12
 	ax
-	add.d	r7,r12
+	add.d	$r7,$r12
 	ax
-	add.d	r8,r12
+	add.d	$r8,$r12
 	ax
-	add.d	r9,r12
+	add.d	$r9,$r12
 
 	;; fold the carry into the checksum, to avoid having to loop the carry
 	;; back into the top
 	
 	ax
-	addq	0,r12
+	addq	0,$r12
 	ax			; do it again, since we might have generated a carry
-	addq	0,r12
+	addq	0,$r12
 
-	subq	10*4,r11
-	bge	mloop
+	subq	10*4,$r11
+	bge	_mloop
 	nop
 
-	addq	10*4,r11	; compensate for last loop underflowing length
+	addq	10*4,$r11	; compensate for last loop underflowing length
 
-	movem	[sp+],r8	; restore regs
+	movem	[$sp+],$r8	; restore regs
 
-word_loop:
+_word_loop:
 	;; only fold if there is anything to fold.
 
-	cmpq	0,r12
-	beq	no_fold
+	cmpq	0,$r12
+	beq	_no_fold
 
 	;; fold 32-bit checksum into a 16-bit checksum, to avoid carries below.
 	;; r9 and r13 can be used as temporaries.
 	
-	moveq	-1,r9		; put 0xffff in r9, faster than move.d 0xffff,r9
-	lsrq	16,r9
+	moveq	-1,$r9		; put 0xffff in r9, faster than move.d 0xffff,r9
+	lsrq	16,$r9
 	
-	move.d	r12,r13
-	lsrq	16,r13		; r13 = checksum >> 16
-	and.d	r9,r12		; checksum = checksum & 0xffff
-	add.d	r13,r12		; checksum += r13
-	move.d	r12,r13		; do the same again, maybe we got a carry last add
-	lsrq	16,r13
-	and.d	r9,r12
-	add.d	r13,r12
-
-no_fold:
-	cmpq	2,r11
-	blt	no_words
+	move.d	$r12,$r13
+	lsrq	16,$r13		; r13 = checksum >> 16
+	and.d	$r9,$r12		; checksum = checksum & 0xffff
+	add.d	$r13,$r12		; checksum += r13
+	move.d	$r12,$r13		; do the same again, maybe we got a carry last add
+	lsrq	16,$r13
+	and.d	$r9,$r12
+	add.d	$r13,$r12
+
+_no_fold:
+	cmpq	2,$r11
+	blt	_no_words
 	nop
 	
 	;; checksum the rest of the words
 	
-	subq	2,r11
+	subq	2,$r11
 	
-wloop:	subq	2,r11
-	bge	wloop
-	addu.w	[r10+],r12
+_wloop:	subq	2,$r11
+	bge	_wloop
+	addu.w	[$r10+],$r12
 	
-	addq	2,r11
+	addq	2,$r11
 		
-no_words:
+_no_words:
 	;; see if we have one odd byte more
-	cmpq	1,r11
-	beq	do_byte
+	cmpq	1,$r11
+	beq	_do_byte
 	nop
 	ret
-	move.d	r12, r10
+	move.d	$r12, $r10
 
-do_byte:	
+_do_byte:	
 	;; copy and checksum the last byte
-	addu.b	[r10],r12
+	addu.b	[$r10],$r12
 	ret
-	move.d	r12, r10
+	move.d	$r12, $r10