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README.md
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README.md
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@ -18,6 +18,17 @@ Application path: A2FC.SYSTEM
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Startup: ?PHOTOS/MYPIC.A2FC
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````
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## Memory Usage
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`a2fc.system` loads at $2000 (like any `.system` file) but relocates itself to zero page. It loads the given `.a2fc` file into hi-res page 1, but only $2000 bytes at a time, so it never touches hi-res page 2.
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````
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0050..0096 relocated program code
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2000..3FFF graphic data
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2000..3FFF/aux graphic data
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9200..95FF ProDOS file buffer
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````
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## Tools to create A2FC files
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* [BMPA2FC](http://www.appleoldies.ca/graphics/index.htm#dhgr) (Windows)
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