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Old 01-29-2008, 08:31 AM   #1
morduk
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Default Classic software and the PPC boards

Been gone from the amiga area for a long time. Bought the new OS 4 without knowing I needed a PPC board. My question is this; does the classic software (the kind that ran on the 2000's and 4000's that was programed before the day of the PPC cards)work on an amiga with one of these PPC boards installed?
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Old 01-29-2008, 08:33 AM   #2
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Default Re: Classic software and the PPC boards

if u bought os4 for classic amiga u should be able to run it on a classic amiga with PPC installed in it
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Old 01-29-2008, 08:37 AM   #3
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Default Re: Classic software and the PPC boards

I think he knows that already.

I don't own a PPC board, but from what I understand, there are some that come with a 68040/060 on them AS WELL as a PPC CPU. These can run 68000 software just fine.

Then there are those that don't come with ONLY the PPC processor chip, and must use 68000 emulation to run the earlier software. I don't know for sure, but there may be some compatibility issues with this.

Of course, in ANY case, you can usually disable the PPC CPU and revert to your Amiga's native 68000 (A2000), 68020 (A1200) or 68030 (A3000D) processor to run "classic" software.
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Old 01-29-2008, 08:42 AM   #4
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Default Re: Classic software and the PPC boards

Quote:
morduk wrote:
does the classic software work on an amiga with one of these PPC boards installed?
it depends. first of all, all PPC boards also include a 68x processor too. So, running os 3.9, you can run all classic software directly. PPC programs run on the PPC seperately.

OS 4.0 works little bit different. It completely disables the 68k CPU. All programs run on the PPC. 68k apps run through emulation on the PPC. There maybe compatibility issues, though I haven't run Os 4.0 myself, so I can't know.

Aside from the 68k apps, software that bang the chipset directly may give you problems too.
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