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

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

Defined functions