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small doc fixes and explanation

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Adam Mayer 2017-12-09 21:26:03 -05:00
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docs/Apple 401 Plotter.md
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# The Apple 401 Color Plotter
## Quick introduction and apology
I don't have access to the manual for the Apple 410, which describes all the commands
in detail. Everything below (other than the dip switch settings) was sussed out by
ripping the ROM, extracting the self-test script and the command lookup table, and
trial and error. If you have access to better documentation, please update this document.
## General concepts
The way the 401 interprets a coordinate at any given time depends on the current