1/* 2 * Copyright (c) 1983 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that this notice is preserved and that due credit is given 7 * to the University of California at Berkeley. The name of the University 8 * may not be used to endorse or promote products derived from this 9 * software without specific written prior permission. This software 10 * is provided ``as is'' without express or implied warranty. 11 */ 12 13#if defined(SYSLIBC_SCCS) && !defined(lint) 14_sccsid:.asciz "@(#)brk.s 5.2 (Berkeley) 05/20/88" 15#endif /* SYSLIBC_SCCS and not lint */ 16 17#include "SYS.h" 18 19#define SYS_brk 17 20 21 .globl curbrk 22 .globl minbrk 23 24ENTRY(brk) 25 cmpl 4(fp),minbrk 26 bgeq ok 27 movl minbrk,4(fp) 28ok: 29 kcall $SYS_brk 30 jcs err 31 movl 4(fp),curbrk 32 clrl r0 33 ret 34err: 35 jmp cerror 36