Re: If you were to put a graphics chip on an apple II card...

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

On Sunday, September 9, 2012 10:23:50 PM UTC-5, (unknown) wrote:
> On Sunday, September 9, 2012 8:18:05 PM UTC-7, BLuRry wrote:
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> > That's why I'm going for a new music format.  I always though the music replayer methodology of using a CPU emulation was kind of BS compared to a pure music format the likes of a mod or similar.  I get why the msx and speccy music emulators use cpu emulation to accomplish the goal, mostly for timing but also because it's easier to rip out a music routine than convert the data to a new format.  But I still don't agree with it because of its lack of portability.
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> I understand the problem now, and why you are doing the new format..
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> Will you have an interrupt driven player planned for it?  
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> Looking on the net I can't find any AY8910 players for the apple II.  A few of the music editors will output to the card, but only with the editor loaded.
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> Rich

yes, a new editor will be absolutely necessary.  But I don't have the time to write it in 6502 or fit its display into the constraints of 560x192.  The editor will be a java swing program and it will use internals of Jace for playback.  The actual playback engine is an embedded apple //e emulator, actually a running copy of Jace without the video or keyboard attached.  And instead of the Apple // rom it will jump straight into the replayer routine on start.

The replayer is interrupt-driven.  I only want to write one playback function, so the editor will be an embedded test of the replayer and vice versa.

;-)

Again, not a lot of progress in the last two days.  It's a long story and it probably requires beer to retell.  But spare time permitting I will have something to show for my efforts in the near future.

-B