ASMB,R,L,C
      HED DREAD 91700-16119 REV A 751222 * (C) HEWLETT PACKARD CO. 1976 
      NAM DREAD,7 91700-16119 REV A 751222
      SPC 1 
******************************************************************
*  * (C) COPYRIGHT HEWLETT-PACKARD COMPANY 1976.  ALL RIGHTS     *
*  * RESERVED.  NO PART OF THIS PROGRAM MAY BE PHOTOCOPIED,      *
*  * REPRODUCED OR TRANSLATED TO ANOTHER PROGRAM LANGUAGE WITHOUT*
*  * THE PRIOR WRITTEN CONSENT OF HEWLETT-PACKARD COMPANY.       *
******************************************************************
      SPC 2 
      ENT DREAD 
      EXT READF 
      EXT .ENTR 
      SPC 5 
* 
* DREAD 
* SOURCE:91700-18119
* BINARY:91700-16119
* SHANE DICKEY
* JULY 31,1974
* 
PRAMS REP 6 
      NOP 
DREAD NOP 
      JSB .ENTR 
      DEF PRAMS 
* 
* 
      LDA D3        SET UP DEFAULT # OF PARAMETERS
      STA #PRMS 
* 
      DLD PRAMS     MOVE DEFS FOR 1ST TWO 
      DST PRAM1 
* 
      DLD PRAMS+2   MOVE 2ND TWO
      DST PRAM1+2 
* 
* 
      SZB,RSS       WAS THE 6TH ONE THERE?
      JMP DONE      NO DONE 
* 
      ISZ #PRMS     YES INCREMENT COUNT 
      DLD PRAMS+4   MOVE POSSIBLE 3RD & 4TH 
      DST PRAM1+4 
* 
      SZA,RSS       3RD PRESENT?
      JMP DONE      NO
* 
      ISZ #PRMS     YES-INCREMENT COUNT 
* 
      SZB,RSS       4TH PRESENT?
      JMP DONE      NO
* 
      ISZ #PRMS 
DONE  LDA #PRMS     CALCULATE RETURN
      ADA ADDS
      STA DRTN      & PUT IN REBUILT CALL 
* 
      JSB RFASR 
      JSB CLEAR     CLEAR OPTIONAL PARAMETERS 
      LDA PRAMS+1,I GET IERR
      JMP DREAD,I   FINISHED RETURN TO USER 
      SPC 5 
RFASR NOP 
      JSB READF 
DRTN  NOP 
PRAM1 REP 6 
      NOP 
      JMP RFASR,I 
      SPC 5 
CLEAR NOP 
      CLA           CLEAR DEFS TO OPTIONAL PARAMETERS 
      CLB 
      DST PRAMS+3 
      DST PRAM1+3 
      STA PRAMS+5 
      STA PRAM1+5 
* 
      JMP CLEAR,I 
      SPC 5 
* CONSTANTS 
D3    DEC 3 
ADDS  DEF DRTN+1
#PRMS NOP 
      END 
* AN ERROR EXISTS 
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