1/* 2 * Copyright (c) 1983 Regents of the University of California. 3 * All rights reserved. The Berkeley software License Agreement 4 * specifies the terms and conditions for redistribution. 5 */ 6 7#ifndef lint 8_sccsid:.asciz "@(#)syscall.s 5.2 (Berkeley) 06/05/85" 9#endif not lint 10 11#include "SYS.h" 12 13ENTRY(syscall) 14 movl 4(ap),r0 # syscall number 15 subl3 $1,(ap)+,(ap) # one fewer arguments 16 chmk r0 17 jcs 1f 18 ret 191: 20 jmp cerror 21