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Add a memcpy() entry as suggested by Gordon Ross. Use <machine/asm.h>

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where appropriate.
This commit is contained in:
thorpej 1995-09-10 19:42:17 +00:00
parent 49a4e14351
commit ef09db9674
2 changed files with 13 additions and 18 deletions
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4
sys/arch/hp300/hp300/Locore.c
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@ -1,4 +1,4 @@
/* $NetBSD: Locore.c,v 1.10 1995/08/13 00:05:09 mycroft Exp $ */
/* $NetBSD: Locore.c,v 1.11 1995/09/10 19:42:17 thorpej Exp $ */
/*
* Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
@ -307,6 +307,8 @@ bzero(base, count) caddr_t base; unsigned count; { }
blkclr(base, count) caddr_t base; unsigned count; { }
/*ARGSUSED*/
bcmp(str1, str2, count) caddr_t str1, str2; unsigned count; { return (0); }
/*ARGSUSED*/
memcpy(to, from, len) caddr_t to, from; unsigned int len; { }
/*ARGSUSED*/
strlen(str) caddr_t str; { return (0); }

27
sys/arch/hp300/hp300/locore.s
View File

@ -1,4 +1,4 @@
/* $NetBSD: locore.s,v 1.41 1995/05/25 01:09:10 mycroft Exp $ */
/* $NetBSD: locore.s,v 1.42 1995/09/10 19:42:19 thorpej Exp $ */
#undef STACKCHECK /* doesn't work any more */
@ -1202,22 +1202,7 @@ _szicode:
* Primitives
*/
#ifdef __STDC__
#define EXPORT(name) .globl _ ## name; _ ## name:
#else
#define EXPORT(name) .globl _/**/name; _/**/name:
#endif
#ifdef GPROF
#if __GNUC__ >= 2
#define ENTRY(name) EXPORT(name) link a6,\#0; jbsr mcount; unlk a6
#else
#define ENTRY(name) EXPORT(name) link a6,#0; jbsr mcount; unlk a6
#endif
#define ALTENTRY(name, rname) ENTRY(name); jra rname+12
#else
#define ENTRY(name) EXPORT(name)
#define ALTENTRY(name, rname) ENTRY(name)
#endif
#include <machine/asm.h>
/*
* For gcc2
@ -2102,15 +2087,23 @@ Lcmpdone:
/*
* {ov}bcopy(from, to, len)
* memcpy(to, from len)
*
* Works for counts up to 128K.
*/
ENTRY(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
ALTENTRY(ovbcopy, _bcopy)
ENTRY(bcopy)
movl sp@(12),d0 | get count
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