1*41027Swilliam/*- 2*41027Swilliam * Copyright (c) 1990 The Regents of the University of California. 3*41027Swilliam * All rights reserved. 4*41027Swilliam * 5*41027Swilliam * This code is derived from software contributed to Berkeley by 6*41027Swilliam * William Jolitz. 7*41027Swilliam * 8*41027Swilliam * %sccs.include.redist.c% 9*41027Swilliam */ 10*41027Swilliam 11*41027Swilliam#if defined(SYSLIBC_SCCS) && !defined(lint) 12*41027Swilliam .asciz "@(#)sbrk.s 5.1 (Berkeley) 04/23/90" 13*41027Swilliam#endif /* SYSLIBC_SCCS and not lint */ 14*41027Swilliam 15*41027Swilliam#include "SYS.h" 16*41027Swilliam 17*41027Swilliam#define SYS_brk 17 18*41027Swilliam 19*41027Swilliam .globl _end 20*41027Swilliam .globl minbrk 21*41027Swilliam .globl curbrk 22*41027Swilliam 23*41027Swilliam .data 24*41027Swilliamminbrk: .long _end 25*41027Swilliamcurbrk: .long _end 26*41027Swilliam .text 27*41027Swilliam 28*41027SwilliamENTRY(sbrk) 29*41027Swilliam movl 4(%esp),%ecx 30*41027Swilliam movl curbrk,%eax 31*41027Swilliam addl %eax,4(%esp) 32*41027Swilliam lea SYS_brk,%eax 33*41027Swilliam LCALL(7,0) 34*41027Swilliam jb err 35*41027Swilliam movl curbrk,%eax 36*41027Swilliam addl %ecx,curbrk 37*41027Swilliam ret 38*41027Swilliamerr: 39*41027Swilliam jmp cerror 40