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#retrodev

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#Z80 question for experts even though I have a lot of experience with it: the Zilog manual says that the IX/IY offset is relative (signed) but I have _never once_ seen negative offsets used in the wild, e.g. `ld A, [IX-$20]`, I'm not sure all assemblers even support "-" instead of "+" in IX/IY instruction, mine doesn't yet and I'd prefer to confirm this with others first.

🕹️ Developing a Retro-Roguelike Game for Multiple Platforms in C

「 The journey began with TRSE, a development environment supporting a huge number of vintage computer systems. My plan was to develop a text-based roguelike that could run on various hardware by compiling code for each target 」

retrogamecoders.com/roguelike-

Retro Game Coders · Developing a Retro-Roguelike Game for Multiple Platforms in CMy story of making a retro roguelike dungeon crawler game playable on vintage systems like the C64, Commodore PET, Atari 800, and Apple II
#gamedev#c#retrodev