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

   1: / error	= pipe(fildes);
   2: /	  int fildes[2];
   3: 
   4: .globl  _pipe, cerror
   5: 
   6: _pipe:
   7:         mov     r5,-(sp)
   8:         mov     sp,r5
   9:         sys     pipe
  10:         bec     1f
  11:         jmp     cerror
  12: 1:
  13:         mov     r2,-(sp)
  14:         mov     4(r5),r2
  15:         mov     r0,(r2)+
  16:         mov     r1,(r2)
  17:         clr     r0
  18:         mov     (sp)+,r2
  19:         mov     (sp)+,r5
  20:         rts     pc

Defined functions