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Mirage
Registered: Jan 2003
Posts: 113 |
Release id #81924 : Scramble 2010 preview
I've done a version of the preview with fallback kernal loading enabled - you can get it here
If the screen turns purple momentarily at startup it means the loader has fallen back to kernal loading.
I don't have the equipment to quickly transfer d64 images to various c64 setups, so i'd be happy if some of you could try this on your setups :)
Cheers!
P.S. When testing, don't throw any bombs... i know of one bug where i'm not properly handling any $01 changes |
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Mirage
Registered: Jan 2003
Posts: 113 |
Yes, plain bitmap and VSP. The whole colourmem is fixed to mid-gray, though, so I don't have to copy that when it's time to switch double buffer.
WVL helped me with the 63-$dc04-cycle-timer-IRQ to make sure I could have the missiles cross the VSP area without messing up the critical timing.
Not sure if he came up with that method or if it had been around longer. |
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Compyx
Registered: Jan 2005
Posts: 631 |
Kjer and/or Bagder used the CIA clock slide 'trick' in Xplosion! (1989), so it's at least that old. |
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WVL
Registered: Mar 2002
Posts: 897 |
Ofcourse I didn't invent it. I just helped Mirage with it. |
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Mirage
Registered: Jan 2003
Posts: 113 |
And helpful it was! |
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Compyx
Registered: Jan 2005
Posts: 631 |
Just providing some historical perspective. I remember looking at the code of some Horizon demos (back in 1989) and coming across JMP ($DC03). I had no clue what was going on. Only relatively recently I could make sense of it, thanks to the internet.
Edit: And I would really like to see the finished project, remember seeing the preview many years ago, wowzers :) |
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