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Bamu®
Account closed
Registered: May 2005
Posts: 1332 |
Dreamload question
Hi!
Does anyone know how to 'convert' ide64 fixed games to dreamload?
I saw that there exists an ide64 version of 'Rick Dangerous 2'. How do I add the new loader?
It should run with the MMC64... |
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Ninja
Registered: Jan 2002
Posts: 411 |
Dreamload needs 2 pages for loadercode and 1 page as a buffer. This has always been the case and was not extended because of MMC (but MMC is closest to the limit). When installing approx. $1000 byte are needed. |
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chatGPZ
Registered: Dec 2001
Posts: 11386 |
what exactly is the problem with relying on the kernel api? inventing something new here just makes things worse imho. |
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Oswald
Registered: Apr 2002
Posts: 5094 |
what groepaz said |
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soci
Registered: Sep 2003
Posts: 480 |
I've just fixed dreamload to load from DFI files on IDE64. Just because that was the only thing it couldn't load from, which was a shame ;) Now it passes all tests, except on SCPU, but that can't be fixed to be possible with memory configuration 5.
Actually I do not like the dreamload design. It's just too much based on the on disk layout. If one wants to load from files I think it's much simpler to call the KERNAL load routine, which is also much faster than loading from DFI.
The really fine toolchain prevented me for a long time to add IDE64 support, I've always got fed up with it and throw away the idea. That's probably because my style is too much different. But finally it couldn't stop me ;)
Dreamload should throw away the track/sector interface and only keep the filename based one. Then I'll fix it to use LOAD on IDE64 ;)
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Krill
Registered: Apr 2002
Posts: 2980 |
Quote: what exactly is the problem with relying on the kernel api? inventing something new here just makes things worse imho.
As i said, we (or at least i) want a seek command. And then there still is and always will be hardware that does not come with a kernal patch. Also, imagine having several devices with concurring kernal patches etc. |
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soci
Registered: Sep 2003
Posts: 480 |
Seeking should be no problem with IDEDOS 0.90. Actually DFI support is implemented with seeks...
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Krill
Registered: Apr 2002
Posts: 2980 |
Yes, whateverDOS. Cool. And if i don't have/want it? :D |
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Ninja
Registered: Jan 2002
Posts: 411 |
Aaaargh, once I forget to copy my typed text to an editor and whooosh, it got thrown away :((((( Fuck!
Okay, to sum it up:
- Dreamload started as a 1541-loader for our demos
- we added everything else to see if it is possible
- it is still a loader for (our) demos
- so, we won't throw away the track/sector thing
- it is not really suited for games, KERNAL is better there.
- sorry to all, which hoped for lots of MMC-games now
- we wanted to add IDE64-DFI later, soci was faster
- (toolchain? just dreamass is really needed...)
And finally: it's all about the fun doing it... |
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Bamu®
Account closed
Registered: May 2005
Posts: 1332 |
Then, we have to wait for real mmc-kernal support and forget dreamload? ;) |
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Krill
Registered: Apr 2002
Posts: 2980 |
Or just define a generic loader interface that goes without Kernal patches and then swap loaders if needed. |
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