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add memcpy entry

This commit is contained in:
chopps 1995-09-23 08:14:36 +00:00
parent 23ee56022d
commit 40a6506694
1 changed files with 8 additions and 1 deletions
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9
sys/arch/amiga/amiga/locore.s
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@ -1,4 +1,4 @@
/* $NetBSD: locore.s,v 1.42 1995/09/04 12:56:47 chopps Exp $ */
/* $NetBSD: locore.s,v 1.43 1995/09/23 08:14:36 chopps Exp $ */
/*
* Copyright (c) 1988 University of Utah.
@ -1766,6 +1766,12 @@ Lcmploop:
Lcmpdone:
rts
NTRY(memcpy)
movl sp@(12),d0 | get count
jeq Lcpyexit | if zero, return
movl sp@(8), a0 | src address
movl sp@(4), a1 | dest address
jra Ldocopy | jump into bcopy
/*
* {ov}bcopy(from, to, len)
*
@ -1777,6 +1783,7 @@ ENTRY(bcopy)
jeq Lcpyexit | if zero, return
movl sp@(4),a0 | src address
movl sp@(8),a1 | dest address
Ldocopy:
cmpl a1,a0 | src before dest?
jlt Lcpyback | yes, copy backwards (avoids overlap)
movl a0,d1