---------------------------- 
                  | Model 100/200 System Map |  
                  ----------------------------  
                           ROM: Part VI  
                          Copyright 1985  
                     Revision Date: 09/30/85  
                   Compiled and Researched by:  
                       Robert D. Covington  
            Systems Information Management Consultants  
      [Not associated with The Covington Group, N. Y., N. Y.]  
         Revised to add Tandy 200 by Chris De Herrera, 9/89 
  
    This document may be duplicated and distributed free of  
charge to any individuals who desire it.  Any duplications of  
this document, however, must include all of the information  
contained here-in, with no deletions or changes.  
    The author and distributors of this document make no   
expressed or implied warrantees as to the validity of the   
information contained here in.  
  
Hex Address 
M100   M200    Description 
---------------------------------------------------------------  
7646H 8FC9H -  ?

765CH 8FA0H -  Set interrupt to 1DH  
               Exit:  
                  A - Destroyed  

N/A   8FA6H -  SOUND E,D
  
7662H 8FABH -  Beep routine (07H)  
               Exit:  
                  A & BC - Destroyed  
  
7676H 8FC9H -  Click sound port  
               Exit:  
                  A - Destroyed  

770FH 9063H -  ?
  
7711H       -  Start of LCD character generator shape table.  Five bytes per  
               character for the first 128 characters.  6 bytes per   
               character for characters 128-255.  
  
7BF0H       -  End of LCD character generator shape table.  
  
7BF1H 9763H -  Start of keyboard conversion matrix.  
  
7D32H       -  End of keyboard conversion matrix.  
  
7D33H       -  Boot routine  
  
7EACH 9AFDH -  Display the number of free memory bytes on the screen.  

7F2BH 9BE1H -  MAXFIL
  
7F98H 9C4EH -  ?

7FD6H       -  RST 38H RAM vector driver routine (see 38H).  

7FF3H 9CABH -  NULSUB

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