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Author Topic: 68030RC50C and 68882RC50A  (Read 2997 times)

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Offline alexh

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Re: 68030RC50C and 68882RC50A
« on: June 24, 2008, 07:23:02 PM »
Why would anyone want an FPU with an Amiga (unless it's inside an 060)??

Nothing ever used it.

Complete waste of money and electricity.
 

Offline alexh

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Re: 68030RC50C and 68882RC50A
« Reply #1 on: June 24, 2008, 09:00:07 PM »
Quote

meega wrote:
Anything can use it if it's there. If it's not there then nothing can use it. The OS can use it, if it's there.

"If A < B" can be done in the fpu.

But nothing, including the OS, does use it... mainly cos it's slower than FPM on the CPU.
 

Offline alexh

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Re: 68030RC50C and 68882RC50A
« Reply #2 on: June 24, 2008, 11:02:32 PM »
Quote

Nostalgiac wrote:
eh ? any program using the ieee libs get the benefit of an FPU for free, so all those prg's use them without "intention"

ALL those programs eh?? List a few, go on. If there are so many programs that use the the FPU list them.

If you can find 10, that the majority of us will have heard of, I'll buy you a pint or two.
 

Offline alexh

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Re: 68030RC50C and 68882RC50A
« Reply #3 on: June 25, 2008, 12:22:42 AM »
Heh, heh! DOOM eh??

Doom does NOT use an FPU! The original never did and neither does any Amiga port. The game is written to use fixed point math not floats.

And why you'd want to play a lame Amiga port at 320x200 at about 5-10fps on an 030 when you can play GLDoom / ZDoom / prBoom on a PC/Mac at 1280x1024 75fps I dunno, you'd have to be BONKERS!