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Add strncpy (needed for bootp/dhcp). Tighten up some of the assembly.

This commit is contained in:
matt 1998-10-09 06:09:48 +00:00
parent 3c12da56ad
commit bbf29cff44
1 changed files with 15 additions and 8 deletions
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23
sys/arch/vax/boot/str.s
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@ -1,4 +1,4 @@
/* $NetBSD: str.s,v 1.3 1997/03/15 13:04:30 ragge Exp $ */ /* $NetBSD: str.s,v 1.4 1998/10/09 06:09:48 matt Exp $ */
/* /*
* Copyright (c) 1996 Ludd, University of Lule}, Sweden. * Copyright (c) 1996 Ludd, University of Lule}, Sweden.
* All rights reserved. * All rights reserved.
@ -85,16 +85,11 @@ ENTRY(bcmp, 0);
* Is movc3/movc5 emulated on any CPU? I dont think so; use them here. * Is movc3/movc5 emulated on any CPU? I dont think so; use them here.
*/ */
ENTRY(bzero,0); ENTRY(bzero,0);
movl 4(ap), r0 movc5 $0,*4(ap),$0,8(ap),*4(ap)
movl 8(ap), r1
movc5 $0,(r0),$0,r1,(r0)
ret ret
ENTRY(bcopy,0); ENTRY(bcopy,0);
movl 4(ap), r0 movc3 12(ap), *4(ap), *8(ap)
movl 8(ap), r1
movl 12(ap), r2
movc3 r2, (r0), (r1)
ret ret
ENTRY(strlen, 0); ENTRY(strlen, 0);
@ -128,3 +123,15 @@ ENTRY(strcmp, 0)
1: bgtr 3f 1: bgtr 3f
mnegl r0, r0 mnegl r0, r0
3: ret 3: ret
ENTRY(strncpy, 0)
movl 4(ap), r1
movl 8(ap), r2
movl 12(ap), r3
bleq 2f
1: movb (r2)+, (r1)+
beql 2f
decl r3
bneq 1b
2: ret