UNIX 7th Ed. - /usr/src/libc/sys/write.s

   1: / C library -- write
   2: 
   3: / nwritten = write(file, buffer, count);
   4: /
   5: / nwritten == -1 means error
   6: 
   7: .globl  _write
   8: .globl  cerror
   9: .write = 4.
  10: 
  11: _write:
  12:         mov     r5,-(sp)
  13:         mov     sp,r5
  14:         mov     4(r5),r0
  15:         mov     6(r5),0f
  16:         mov     8(r5),0f+2
  17:         sys     0; 9f
  18:         bec     1f
  19:         jmp     cerror
  20: 1:
  21:         mov     (sp)+,r5
  22:         rts     pc
  23: .data
  24: 9:
  25:         sys     .write; 0:..; ..

Defined functions