4.3BSD - /usr/src/lib/libc/vax/sys/syscall.c

   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: #ifdef SYSLIBC_SCCS
   8: _sccsid:.asciz  "@(#)syscall.c	5.3 (Berkeley) 3/9/86"
   9: #endif SYSLIBC_SCCS
  10: 
  11: #include "SYS.h"
  12: 
  13: ENTRY(syscall)
  14:     movl    4(ap),r0    # syscall number
  15:     subl3   $1,(ap)+,(ap)   # one fewer arguments
  16:     chmk    r0
  17:     jcs 1f
  18:     ret
  19: 1:
  20:     jmp cerror

Defined functions