Does anyone happen to know where I can find information on Apple II GEOS programming? "The Hitchhiker's Guide to GEOS" has serious errors, & JFGI is completely failing me.
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I may have found one, & I'm almost kicking myself. cc65 has a symbol table lifted from the Hitchhiker's Guide to GEOS, checked only for fidelity not correctness. But it also uses a few include files for cross-compiling Apple II GEOS programs, which means conflicting addresses *had* to be resolved: https://github.com/cc65/cc65/tree/master/libsrc/geos-apple
... Only two were.