Re: Prince of Persia for ProDOS? was Re: QIX for ProDOS

[BLuRry <brendan.robert@gmail.com>]

On Wednesday, October 31, 2012 2:02:45 AM UTC-5, Steve Nickolas wrote:
> I wrote a little system detection code and had done with it for now...
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> It looks like the first guts are in MASTER.S
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> Already I have a potential problem because MASTER sits in the top 2K of 
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> memory, which is part of the ProDOS kernel (F880+).
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> What I'd like to do first is to get just the attract loop running, with 
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> the Arabian-sounding music and everything.  While this part is loading I 
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> would display a credit screen.
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> Probably if interrupted, I would then load the next phase...
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> ...man, I'm in up to my neck.
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> -uso.

Don't go too much further without looking at Mechner's notes.  He lays out memory map usage pretty clearly.  This can be extremely useful in mapping out loader behavior.

http://jordanmechner.com/wp-content/uploads/1989/10/popsource009.pdf

-B