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Re: Amiga Demo Scene CD Idea

Posted: Fri Aug 05, 2022 10:17 am
by terriblefire
alexh wrote: Fri Aug 05, 2022 10:14 am Would it improve CD performance by simply adding buffers in AmigaOS? Will the CD32 AmigaOS CDFS then read-ahead?
Worth a try I guess. Whats the command magic for that?

Re: Amiga Demo Scene CD Idea

Posted: Fri Aug 05, 2022 10:27 am
by alexh
I'm not that familiar with CD0: but for DF0: and DH0: it is

https://wiki.amigaos.net/wiki/AmigaOS_M ... ADDBUFFERS

Re: Amiga Demo Scene CD Idea

Posted: Wed Aug 10, 2022 9:30 pm
by alenppc
There are a couple of demos that don't play nice on NTSC machines, and basically hang the machine. I need to modify the script to report what's being played so I can identify the culprits. Just need some free time...

Re: Amiga Demo Scene CD Idea

Posted: Thu Aug 11, 2022 4:36 am
by supaduper
Yeah I did a revised iso and took out some problematic Demos like:Eludes Rise and Shine,which is completey garbled and found that multiverse_aga froze completely at the `Bookcase` scene

Re: Amiga Demo Scene CD Idea

Posted: Thu Aug 11, 2022 5:42 pm
by terriblefire
supaduper wrote: Thu Aug 11, 2022 4:36 am Yeah I did a revised iso and took out some problematic Demos like:Eludes Rise and Shine,which is completey garbled and found that multiverse_aga froze completely at the `Bookcase` scene
Aye but the point of the demo CD was also a regression test to make me fix these things :D

Re: Amiga Demo Scene CD Idea

Posted: Thu Aug 11, 2022 8:41 pm
by Higgy
You can always leave them on the CD if there is space, and least they should be able to be run by Boot No Startup Sequence and manually running them.

Re: Amiga Demo Scene CD Idea

Posted: Thu Aug 11, 2022 8:57 pm
by terriblefire
Higgy wrote: Thu Aug 11, 2022 8:41 pm You can always leave them on the CD if there is space, and least they should be able to be run by Boot No Startup Sequence and manually running them.
The demos are numbered and not easily identified...

Re: Amiga Demo Scene CD Idea

Posted: Fri Aug 12, 2022 5:07 pm
by alenppc
The following demos crash on NTSC machines thus dampening the enjoyment somewhat:

Last Goat Standing by Noice
Reboxer by Elude
Tint by TBL
We Can Code Again
We come in peace by Elude
Captured Dreams - The Black Lotus
Serenity by Elude
Lightshaft by Elude
Rise and shine by Elude
Dust by Elude
Machinist by Elude
Step by step by Elude
Hexel by Ephidrena (only music plays but no video)

The following runs fine but fails to quit at the end:

Magia - The Black Lotus

Re: Amiga Demo Scene CD Idea

Posted: Fri Aug 12, 2022 9:54 pm
by alexh
I'm not familiar with AGA NTSC/PAL differences. I presume most Demos change the screen mode and refresh in software so incompatibility is down to slightly different chipram speed?