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rcmap6.200
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2006-10-19
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----------------------------
| 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
<EOF>