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Assembly Source File  |  1991-08-16  |  247b  |  20 lines
  1.  
  2.         section CODE
  3.  
  4.         xdef    _GetHeadOff        ; sptr = GetHeadOff(list:4(sp), off:8(sp))
  5.  
  6. _GetHeadOff:    movem.l  4(sp),D0/D1
  7.         move.l    D0,A0
  8.         move.l    (A0),A0
  9.         tst.l    (A0)
  10.         beq    .gho0
  11.         sub.l    D1,A0
  12.         move.l    A0,D0
  13.         rts
  14. .gho0:        moveq.l #0,D0
  15.         rts
  16.  
  17.         END
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