🚀 go-pugleaf

drushall@cs.man.ac.uk (David Rushall) writes:

> I have a number of 'Spectrum 512', a 512-colours-on-the-screen picture format
> for the Atari ST, which I would like to view on my A5000. The images would
> fit on a Mode 15 screen, and could be displayed in all their glory if I had
> some code to display a mode 15 screen, with a pallete switch at the beginning
> of each scan line.

   The spectrum 512 system would better suit a palette switched Mode 12
screen as only 16 colours are ever in use on each scan line.

> Would any kind person happen to have some code to display a mode 15 screen
> in this way, that they were prepared to let me have? Or even some code to
> display 'Spectrum 512' images?
> 
> Ideally, the code should work on any Acorn machine (obvious exceptions
> disregarded), but if it only works with A5000/RO3.0 then that's good enough.

   It certainly wouldn't be hard to do the palette swicthing on any machine
simply by hooking into IOC Timer 1 and using it. I was playing with
implementing a Spectrum 512 picture viewer but ran out of time and interest.

    Philip

--
Philip R. Banks  Syntax: mail < banks_p@kosmos.wcc.govt.nz >            @@@@@/|
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What price the crown of a king on his throne, when you are chained in   @@/---|
the dark all alone? ---A.P.P.                                           @/    |