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Questions tagged [turbografx-16]

For questions regarding Hudson's TurboGrafX-16 (also known as the TG16 or PC Engine)

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1answer
137 views

Does the TurboGrafX16 store switches and/or flags in RAM?

Based the the specs I found for the TG16, it has 8 KB of RAM. I also found notes in the documentation of many opcodes that there is data stored in several "flags and switches" are these stored in RAM ...
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5answers
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Is it possible to make a ROM converter?

Based on my understanding, an emulator is necessary because the machine with the emulator on it (say Windows), doesn't execute the same machine code as the target platform (6502, for example). So what ...
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2answers
232 views

Do TG16 games and software suffer from lag frame similar to NES Super Mario Bros?

As a speedrunning fan, I've watched hours of Super Mario Bros speedruns, and have heard the term "lag frame". I don't think it's similar to typical computer lag, but instead an extremely technical ...
2
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1answer
168 views

What is the format of a TurboGrafX instruction (modified 6502 instruction set)?

What is the general format of TurboGrafX processor instructions? For example, and this is made up: one word for opcode + two words for flags + one word for every parameter listed under that ...
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1answer
191 views

How big is one word in TG16 hardware?

My goal is to recreate the TurboGrafx at gate-level, however there isn't much documentation of the system, probably due to its relative obscurity. What I want to know is how long one word (processor ...