[hatari-devel] Spec512 mode for med res

Nicolas Pomarède npomarede at corp.free.fr
Sat Dec 4 20:43:02 CET 2010


Hello,

I finally got time to dive into the conversion functions used to convert 
Atari's screen to different resolution / bpp in the emulator.

Not easy to focus on this code, because it was adapted from asm to C and 
variable names are not really explicit, but results are here at last :)

As such, spec512 mode is now supported in med res too ; this will fix :

  - 'Best Part Of The Creation' by Delta Force in 'Punish Your Machine'
  - 'Greetings Part' by 1984 in 'No Cooper'
  - Mixed low/med scrolling in 'Brace' by Diamond Design
  - 'Highres Mode' by Paradox (STE)

I tested these in 16 and 32 bits on little endian cpu (x86), could 
someone check on big endian cpu (powerpc mac for example) ?


Nicolas



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