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- Path: tomtec.abg.sub.org!judas
- From: judas@tomtec.abg.sub.org (Th.Huber)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: >>>>>>> The Future: Amiga goes PC (...aeh: "PowerMsPenti...?) <<<<<
- Distribution: world
- Message-ID: <judas.0h8u@tomtec.abg.sub.org>
- References: <4beum4$dkv@sunsystem5.informatik.tu-muenchen.de> <judas.0gy3@tomtec.abg.sub.org> <38231816@kone.fipnet.fi>
- Date: 6 Jan 96 15:58:35 MET
-
- In article <38231816@kone.fipnet.fi> "Jyrki Saarinen" <jsaarinen@kone.fipnet.fi> writes:
- >
- >> 4MB/sec are not possible with 256 colors. On doublemodes, certain
- >> VGA-users need, you can expect less than 2MB from the 32bit-chipset !!!
- >
- >Bullshit.
-
- You never tried to play anims on a DBLPAL screen with deepth 8 ???
- The serial port also collapses, when running more than 9600 Baud on
- such a screen, due to the heavy dma access.
-
- I have an A4000 and an A1200, but none of them went faster than 2MB.
- (Just move a window on a WB with such a resolution, this sucks .. )
-
- >Nonsense. 320x256x8 c2p takes about 20ms (one frame) on a 040-Amiga.
- >That is as fast as chip ram can take.
- >
- >Slower CPUs can do that 20ms also, just less passes depending
- >on the CPU speed. The rest c2p passes are done with the blitter.
-
- Well, I just wonder, why none of the doomengines really gives a
- smooth performance. Is an A4000/040 or A1200/030 too slow ???
-
- >> The guys who wrote the textdemo57 are facing the same prob: The faster
- >> the cpu gets, the higher gets the percentage you spend doing C2P.
- >>
- >> On an A4000/40, C2P is about 30%. On a 060, C2P is more than 50% !
- >
- >Because it does still not have a 040/060-optimized c2p!
- >Only 030 optimized, which is 2x slower on 040!
-
- No, it`s not the 030 code. On the 040 or 060, there are more fps.
- But as fastram benefits directly from a faster cpu and chipram does
- not, the percentage you spend accessing chipram increases.
-
-
-
- >Just tell me, where you are getting these "facts"?
-
- Try`n error and seeing what`s available. If you`re such a C2P freak, I can
- encourage you to write a C2P code for the next kickstart, so we all
- can use this code in future.
- (Or is there allready a source out, you`re refering to ?)
-
-