double double by Desire [web]
screenshot added by deater on 2023-05-24 05:35:09
platform :
type :
release date : may 2023
  • 6
  • 1
  • 0
popularity : 51%
  • 0.86
alltime top: #23267
added on the 2023-05-24 05:35:09 by deater deater

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Knowing little of AppleII trickery, I can only judge from some of sources and the video.
Good adventure-themed music.
added on the 2023-05-24 12:01:32 by sim sim
Tech tech I don't understand, nice picture
rulez added on the 2023-05-24 12:06:26 by Optimus Optimus
can't wait to test how broken this is on my MiSTer! looks great tech!
rulez added on the 2023-05-24 12:17:05 by psenough psenough
should add some info. This is showing off some of the "double" modes available on later Apple II models (the IIe, IIc, Iigs). This includes double-hires (140x192x15 colors), double-lores (80x48x15 colors), 80-column text, and a few other weirder things. The extra trickery here is it's detecting the VBLANK (IIe, IIc, and IIgs have mutually incompatible ways of doing this) and doing some mid-screen mode switching.

I made this at the request of an emulator author, as there wasn't any sample code out there doing mid-screen switches in the double modes. This does break various emulators (MAME especially) but AppleWin does a decent job. I had already released this to the public, and also some of the resources (especially ths music, which is from FF7) aren't fully original so that's why I didn't release it at a party.
added on the 2023-05-24 16:07:37 by deater deater
Rulez then =)!
Thanks Deater for bringing us the Apple II productions! Thanks for your dedication and effort!
rulez added on the 2023-05-24 19:31:04 by sim sim
what sim said.
rulez added on the 2023-05-27 07:01:48 by sensenstahl sensenstahl
Wonderful graphics and lovely music! I like the unveiling of the platform's latest features and the technical tricks. ;)
rulez added on the 2023-05-27 21:03:08 by dOc.K dOc.K
sweet and all that trickery in just 16k
rulez added on the 2023-05-27 23:26:47 by Ramon B5 Ramon B5

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