提交 9bf79539 编写于 作者: J Jesper Nilsson

CRIS v10: Remove duplicated folding of carry from lib/checksum.S, it is not needed.

Also, remove useless CVS id tag.
上级 ab59284e
/* $Id: checksum.S,v 1.1 2001/12/17 13:59:27 bjornw Exp $
/*
* A fast checksum routine using movem
* Copyright (c) 1998-2001 Axis Communications AB
*
......@@ -61,8 +61,6 @@ _mloop: movem [$r10+],$r9 ; read 10 longwords
ax
addq 0,$r12
ax ; do it again, since we might have generated a carry
addq 0,$r12
subq 10*4,$r11
bge _mloop
......@@ -88,10 +86,6 @@ _word_loop:
lsrq 16,$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
......
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