[CQ-Contest] Doctor DX clone (if you never used it, you just don't "get it")

Tim Shoppa tshoppa at gmail.com
Thu Oct 1 12:39:34 EDT 2020

N4ZR asks:
> Does anyone know the identity of the programmer?? Seems that if source
> code were available it should be possible to recompile for Windows
> without too much difficulty.

A little like suggesting building a Stradivarius is as simple as finding
Mr. Stradivarius' CAD drawings and running it through a 3-D printer.

Pete, this is a Commodore 64 and the source code is certainly 6502 Assembly
directly bit-banging on the C64-specific peripherals.

The fact that Dr DX achieved so much using stone knives and bear skins as
the base technology makes it a more impressive marvel than a Stradivarius

Rich's original post where he mentions the possibility of a C64 emulator
seems very promising. The paddle/keying would have to be a custom I/O mod
to the C64 emulator but many are modular enough to add simple peripherals
like this.

C64's are quite commonly available used and the ROM dump Rich identified
may allow a new cartridge to be burned. Presumably the paddle/keying is
done the simplest way possible.

Tim N3QE

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