Heaven/TQA
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Posts posted by Heaven/TQA
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The ide solution I used to write Gnork demo to 1541. but they are nearwhere as good as our Atari solutions due to complex 1541 (trackloader, fast loaders). Whats far better is that 1541pi I got recently which supports everything so demos work.
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Playing with a lot of retro hardware Atari seems the most expandable for years... thanks to SIO etc we had early on stuff like flashcard devices very cheap compared to other platforms now catching up with help of arduino or pi.
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Honestly... you can not write through ROM to RAM like
On C64 but luckily switch off ROM.
But stock Atari XL/XE have only 64k-2k RAM for code. As d000-d7ff is not available for code like on C64.
Its more like a very creative marketing blub....
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Just to be fair....
Maybe I missed something but where does an stock 800 XL has 64k RAM?
The C64 basicly has even more than 64k.... counting RAM under IO plus color ram?
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Wasnt the enduro port The great American cross country road race???
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How about an off-road 4x4 racer using one of those landscape fractal or voxel engines we've seen demos and games based on. Or even a road racer, using the fractal engine for road side landscaping, and color-cycling for a road...road side sprites wouldn't be needed as much with fractals/voxels wizzing by, and more could be dedicated to the cars/traffic/objects on the road.
Been there.... didnt I posted my voxel engine with a car sprite?
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What about Star Raiders 2 proto?
And Rescue ob Fractalus or Eidolon or koronis Rift.
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Beware... our Arsantica demos are for PAL.... not tested or adapted for NTSC.... but glad they were mentioned.
Before I would show Way Out why not Capture the flag instead?
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Thanks Peter for ironing out my bugs
. I guess it took longer me finding the original source on my hdd... .And we should release it on tape with audio while loading.... reminiscing the long loading times.
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Me just stumbled of that bitshift, too... as normally you might have bittable like
01000000,00010000,00000100,00000001....
( in MC)... so you index with xpos and get the value (table at least 160x).
VladR were you referring when saying charset the so called dirty char method?
http://codebase64.org/doku.php?id=base:lines
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Eg Mateos card?
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Another option is to put a DLI out of range on an NTSC console but within a PAL frame length and see if that gets fired.
The remark about putting Display Lists in ROM is purely an access time thing. I have no idea how slow the Mask ROMs used by Atari or GCC were, but anything 120ns or faster should be okay. Any NOR Flash you're buying nowadays should be this fast or better.
It only becomes an issue if you're using PHI2 to gate accesses, since Maria's reads aren't necessarily aligned with it. But in that case it's only a problem for the cartridge hardware designer.
The DLI test sounds nice.... is Maria cutting off too long DLLs or like on A8 picture gets corrupt and rolling?
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So DL and DLL in RAM, right?
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Baaaah thats shit.... if thats true why does every emulator suffer??? I read it in your dev wiki but thought I test it in a7800.... and it worked...
I mean putting every stuff into that small 4K ram is not good.....
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but in A7800 I can put DLL and DL into ROM? so it's possible for static stuff... even I suffer more cycles DMA Maria is demanding?
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thanks... holly shit... looks good on real metal
.just some more testing...
btw... does 7800 have a NTSC/PAL flag to test like GTIA?
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Question:
assuming the DLL and DLs remain static... why do I need to put them into RAM and not ROM?
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Now that 80s card looks sexy for my 800....
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classic battle atari 8bit vs commodore 64
in Atari 8-Bit Computers
Posted
Do I love the 800.... even I like the XL models...