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

   1: / error = chown(name, owner, group);
   2: /	  char *name;
   3: 
   4: .globl  _chown,
   5: .globl  cerror
   6: 
   7: _chown:
   8:         mov     r5,-(sp)
   9:         mov     sp,r5
  10:         mov     4(r5),0f
  11:         mov     6(r5),0f+2
  12:         mov     8(r5),0f+4
  13:         sys     0; 9f
  14:         bec     1f
  15:         jmp     cerror
  16: 1:
  17:         clr     r0
  18:         mov     (sp)+,r5
  19:         rts     pc
  20: .data
  21: 9:
  22:         sys     chown; 0:..; ..; ..

Defined functions