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mihaip / infinite-mac

A classic Mac loaded with everything you'd want
https://infinitemac.org
Apache License 2.0
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Some 68K games run WAY TOO FAST even with 33mhz Quadra 650 ROM? #198

Open that-ben opened 1 year ago

that-ben commented 1 year ago

Similarly to #42 where HyperCard dissolve transitions played WAY TOO SLOW, I'm wondering if something similar could cause some 68K games to run excessively fast (way too fast) under the Basilisk II emulator? e.g. even if you set the speed option to the slowest setting (which would have been completely unplayable on a real 68K Mac) it's still too fast: https://infinitemac.org/run?machine=Quadra%20650&disk=System%207.1&cdrom=https://emulate-in-browser.macintoshrepository.org/d/9421_MyDude.dsk

mihaip commented 1 year ago

Basilisk II doesn't have a speed setting (see discussion in this thread, probably others). It could perhaps be added, but you could also try running the game using the Mac II ROM, which is under Mini vMac, which does support a 1x speed option.

that-ben commented 1 year ago

True, though I was wondering if this setting was still a thing in the source code you used? This is the older build of Basilisk II that I still use for floppy disk support and I can slow it down by introducing a tiny delay every couple milliseconds, it was called LOW POWER MODE before:

asddasdasdas

mihaip commented 1 year ago

Can't seem to find any source code references to that Windows setting. There is a delay pref: https://github.com/mihaip/macemu/blob/bca8aab45f5aba9e540d5c5914193fef56dbecd4/BasiliskII/src/prefs_items.cpp#L88

But that was added pretty recently (https://github.com/kanjitalk755/macemu/commit/f07b34a451a8f74373f5d90210842372c5a81b9d) and is not on a code path that is used in the Emscripten build (we enable USE_CPU_EMUL_SERVICES)

that-ben commented 1 year ago

Ah :ok:

mihaip commented 12 months ago

Have you tried SpeedChopper? I can look into including it on Infinite HD if it helps.

that-ben commented 12 months ago

Very good idea, I'll try it. But I think it should definitely be included in the Infinite HD, given the usefulness and the tiny file size. Thanks for the suggestion, I had forgotten about those little utilities that helped newer Mac run old games at reasonable speed! It's such an artifact of the past, like decades ago, all games frame rate was based off timers and capped like it's supposed to :P