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Author Topic: [UAE] How much does the processor matter?  (Read 2707 times)

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Offline AmigaHeretic

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Re: [UAE] How much does the processor matter?
« on: February 01, 2010, 03:26:26 AM »
Quote from: runequester;540960
I haven't tested this much, but how much does UAE emulate the various processor speeds and how accurately?
 
In other words, how much of a difference does it make for emulation, between selecting a 68020 or 68040 f.x. other than some compatibility issues ?



It basically makes no difference if you select 020 or 040 as far as speed is concerned.  People usually suggest using the 020 setting as there is more software specifically optimized for 020/030 as opposed to 040.  

I happen to set everything up as 040 in my WinUAE environment years ago so I have just stuck with that, but speed wise it really is the same. i.e. you don't get "more" speed selecting 040.
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Back in my day, we didn\'t have water. We only had Oxygen and Hydrogen, and we\'d just have to shove them together.
 

Offline AmigaHeretic

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Re: [UAE] How much does the processor matter?
« Reply #1 on: February 01, 2010, 03:28:34 AM »
Quote from: runequester;540965
Would it be possible to tweak it to match an actual 68030 f.x., or does UAE just match the instructions and whatnot for those processors ?
 
Sorry if these are dumb questions



Yeah, it basically matches the instructions.  On any relatively modern computer with JIT selected, WinUAE BLOWS the 030 out the water.  There is no real 68k CPU that comes close to the JIT 68k in WinUAE.
A3000D (16mhz, 2MB Chip, 4MB Fast, SCSI (300+MB), SuperGen Genlock, Kick 3.1)
Back in my day, we didn\'t have water. We only had Oxygen and Hydrogen, and we\'d just have to shove them together.