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Author Topic: do AGA machines support HAM5 mode?  (Read 2769 times)

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Offline commodorejohn

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Re: do AGA machines support HAM5 mode?
« on: February 16, 2012, 06:48:45 PM »
No, as far as I can tell from the documentation the missing bitplane(s) are always at the high end - you can't selectively disable them, only enable bitplanes 0-x.
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Offline commodorejohn

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Re: do AGA machines support HAM5 mode?
« Reply #1 on: February 16, 2012, 07:17:28 PM »
Quote from: wodan;680714
not that odd, what's the use if you can only change blue?? seems more like a hardware bug that was relabled as a feature, then fixed in AGA.
Not a bug, just a weird artifact mode you get from playing around with the bitplane enable in a mode where the bitplanes have special meaning...
Computers: Amiga 1200, DEC VAXStation 4000/60, DEC MicroPDP-11/73
Synthesizers: Roland JX-10/MT-32/D-10, Oberheim Matrix-6, Yamaha DX7/FB-01, Korg MS-20 Mini, Ensoniq Mirage/SQ-80, Sequential Circuits Prophet-600, Hohner String Performer

"\'Legacy code\' often differs from its suggested alternative by actually working and scaling." - Bjarne Stroustrup