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/* $NetBSD: brk.S,v 1.2 1995/11/04 00:23:04 cgd Exp $ */
/*
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include "SYS.h"
.globl _end
IMPORT(curbrk, 8)
.data
EXPORT(minbrk)
.quad _end
.text
LEAF(brk, 1)
br pv, 1f /* XXX profiling */
1: SETGP(pv)
ldq v0, minbrk
cmpult a0, v0, t0
cmovne t0, v0, a0
SYSCALL_NOLABEL(break)
stq a0, curbrk
mov zero, v0
RET
END(brk)
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