129482Ssam/* 229482Ssam * Copyright (c) 1983 Regents of the University of California. 3*34389Sbostic * All rights reserved. 4*34389Sbostic * 5*34389Sbostic * Redistribution and use in source and binary forms are permitted 6*34389Sbostic * provided that this notice is preserved and that due credit is given 7*34389Sbostic * to the University of California at Berkeley. The name of the University 8*34389Sbostic * may not be used to endorse or promote products derived from this 9*34389Sbostic * software without specific written prior permission. This software 10*34389Sbostic * is provided ``as is'' without express or implied warranty. 1129482Ssam */ 1229482Ssam 13*34389Sbostic#if defined(SYSLIBC_SCCS) && !defined(lint) 14*34389Sbostic_sccsid:.asciz "@(#)sbrk.s 5.2 (Berkeley) 05/20/88" 15*34389Sbostic#endif /* SYSLIBC_SCCS and not lint */ 1629482Ssam 1729482Ssam#include "SYS.h" 1829482Ssam 1929482Ssam#define SYS_brk 17 2029482Ssam 2129482Ssam .globl _end 2229482Ssam .globl minbrk 2329482Ssam .globl curbrk 2429482Ssam 2529482Ssam .data 2629482Ssamminbrk: .long _end 2729482Ssamcurbrk: .long _end 2829482Ssam .text 2929482Ssam 3029482SsamENTRY(sbrk) 3129482Ssam addl3 curbrk,4(fp),-(sp) 3229482Ssam pushl $1 3329482Ssam movl fp,r3 3429482Ssam moval (sp),fp 3529482Ssam kcall $SYS_brk 3629482Ssam jcs err 3729482Ssam movl curbrk,r0 3829482Ssam addl2 4(r3),curbrk 3929482Ssam movl r3,fp 4029482Ssam ret 4129482Ssamerr: 4229482Ssam movl r3,fp 4329482Ssam jmp cerror 44