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People make low bit general purpose CPUs with modern processes? Or devices that use such CPUs still use ones with ancient designs?
by speeder 6y ago
People make low bit general purpose CPUs with modern processes? Or devices that use such CPUs still use ones with ancient designs?
- kevin_thibedeau 6y agoMost moderate complexity ICs have a microcontroller inside. Depending on performance needs an 8-bitter is sufficient. These will typically be a clone of an established architecture so that tooling is readily available.
- speeder 6y agoWell... exactly. Thing is, since I am a game-dev: it would be cool to have a cheap console or portable console that runs at quite high speeds. For example what would be possible if I had a Z80 that ran at 2ghz?
- rusk 6y ago> what would be possible ... Toasted Z80
- buescher 6y agoThe TI 84 Plus CE graphing calculator has a 48MHz eZ80, a 320x240 16-bit color display, 154KB of RAM, 3MB of flash, and a built-in rechargeable battery. No audio capabilities, though. Z80 machines of the 8-bit era were typically 2MHz or 4MHz.
- PopePompus 6y agoRunning an old 8-bit design at a very high clock speed would probably consume more power than a slower clocked ARM chip which could process as fast or faster due to the higher complexity of the chip. Using an old 8-bit design only makes sense when the computing requirements are extremely modest.
- hvs 6y agoThey're cheap and easy to use. https://www.digikey.com/catalog/en/partgroup/z80/15507 https://www.digikey.com/catalog/en/partgroup/z80/15507