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  1.  
  2.  
  3.       The ROM.DSF model library is a "shell" for  ROMs. When using models
  4.       from this library, you must specify your own HEX  files by replacing
  5.       "HEXFILE" with the name of the HEX file used in your design. 
  6.       An example is shown in the following figure. 
  7.  
  8.       ********************************************************** 
  9.       * :CY7C261_30  MEMORY  24                                * 
  10.       * ROM(HEXFILE;P8,P7,P6,P5,P4,P3,P2,P1,P23,P.......etc.); * 
  11.       * LINV(P20;L1);                                          * 
  12.       * TSB(N1,L1;P9; 35,35,30,30,35,35,30,30);                * 
  13.       * TSB(N2,L1;P10;35,35,30,30,35,35,30,30);                * 
  14.       * TSB(N3,L1;P11;35,35,30,30,35,35,30,30);                * 
  15.       * TSB(N4,L1;P13;35,35,30,30,35,35,30,30);                * 
  16.       * TSB(N5,L1;P14;35,35,30,30,35,35,30,30);                * 
  17.       * TSB(N6,L1;P15;35,35,30,30,35,35,30,30);                * 
  18.       * TSB(N7,L1;P16;35,35,30,30,35,35,30,30);                * 
  19.       * TSB(N8,L1;P17;35,35,30,30,35,35,30,30);                * 
  20.       * %                                                      * 
  21.       ********************************************************** 
  22.        Sample .DSF file. 
  23.