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Lots of the source of CP/M came with the distribution, and it wasn't hard to dis-assemble specific bits you were interested in.

Some CP/M software (I'm thinking of WordStar specifically here, but no doubt others) almost required you to write a keyboard and display handler in Z80/8080 machine code to get decent performance over the generic CP/M code - been there on Research Machines 380Zs.



Source has been available for years, it just hasn't been clear whether it was legal to redistribute it. Now it's clear :).


...clearer (if at all). The proper license, whatever it is, is still missing. Sorry. :)




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