2.9BSD - /usr/src/lib/c/sys/chroot.s

   1: / error	= chroot(dirname);
   2: /	  char *dirname;
   3: 
   4: .globl  _chroot
   5: .globl  cerror
   6: 
   7: _chroot:
   8:         mov     r5,-(sp)
   9:         mov     sp,r5
  10:         mov     4(r5),0f
  11:         sys     0; 9f
  12:         bec     1f
  13:         jmp     cerror
  14: 1:
  15:         clr     r0
  16:         mov     (sp)+,r5
  17:         rts     pc
  18: .data
  19: 9:
  20:         sys     chroot; 0:..

Defined functions