TI-85 Calculator
In the fall of 1994 I spent quite a bit of time reverse-engineering
the TI-85 graphing calculator.
Here are some notes related to this project.
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hack.txt
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Text file about hacking the TI-85 calculator
(posted to bit.listserv.calc-ti).
This file describes a trick I discovered for getting the TI-85 to
run machine language programs.
I used the methods described here to obtain images of the TI-85's ROM,
which I could then disassemble to learn about the inner workings of
the TI-85.
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insert.txt,
insert.com,
insert.asm
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Text file containing a utility for inserting machine language programs
into TI-85 memory backups
(posted to bit.listserv.calc-ti).
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dump.txt,
dump.85b,
dump-z80.asm
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Text file containing a program for dumping the TI-85's ROM
(posted to bit.listserv.calc-ti).
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demo.txt,
demo.85b,
demo.asm
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Text file containing a graphics demo for the TI-85's
(posted to bit.listserv.calc-ti).
This was the result of some early experiments on doing graphics
programming on the TI-85.
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tetris.txt,
tetris.85b
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Text file containing Tetris-85, a machine-language Tetris game for the
TI-85
(posted to bit.listserv.calc-ti).
I wrote this during Christmas break in 1994.
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tetris.asm
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Source code to Tetris-85.
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shapes.txt
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Bitmaps of the Tetris pieces for Tetris-85.
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link85.zip
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Link-85 software.
This program is used to transfer programs and data back and forth
between a desktop computer and the TI-85.
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tasm.zip
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TASM table assembler.
This is the assembler I used for all my TI-85 assembly language
programming.
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