/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#if defined(SYSLIBC_SCCS) && !defined(lint)
	.asciz "@(#)brk.s	5.6 (Berkeley) 06/01/90"
#endif /* SYSLIBC_SCCS and not lint */

#include "SYS.h"

#define	SYS_brk		17

	.globl	curbrk
	.globl	minbrk
ENTRY(_brk)
	jbr	ok

ENTRY(brk)
	cmpl	4(ap),minbrk
	bgeq	ok
	movl	minbrk,4(ap)
ok:
	chmk	$SYS_brk
	jcs	err
	movl	4(ap),curbrk
	clrl	r0
	ret
err:
	jmp	cerror