27.Sep.2023
Timo Weirich (Mastodon)
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Emu68 tip: Reducing the speed of the Raspberry Pi
Timo Weirich is in the process of setting up a computer museum. He is also working on his Amiga 500, which is upgraded with a PiStorm. Now he has published a tip on how to reduce the speed so that old games (e.g. XJ220) run better or correctly:
For such adjustments to Michal Schulz' Emu68 software (we reported on the release candidate of version 1.0 just a few days ago), there is Emu68-Tools provided by Philippe 'Flype' Carpentier, which were also updated four days ago. Not only the Emu68Control included in it can control some aspects of the Pi's speed, but also Emu68Info: "with the SETCLOCKRATE option, for example, you can clock the Pi 3A+ down to 600 MHz, which makes it 2.3x slower than the default speed. In combination with the possibilities of Emu68Control, you can clock the Pi 3A+ down to only about 3,000 dhrystones. That's only a little more than twice as fast as a standard A1200".
Compatibility tip: Activating the "Slow chip memory" option (or the SC parameter) in Emu68Control should be avoided. This seems to corrupt the chip memory. Test case e.g.: Pinball Dreams. (dr)
[News message: 27. Sep. 2023, 21:24] [Comments: 0]
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