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Runs at 60 FPS.
Each pixel is 4x4 on-screen pixels.
4x2 pixels are supported, but buggy.
Change HEIGHT2X in the Makefile and top.S to 1 to enable.
Input data is command based.
Supports pause button.
Could support music, but I am not a musician...

PCX sequences created with these horrifying one-liners (ImageMagick required):
For 4x4:
convert pns.gif -coalesce -resize 85x48! -gravity Center -crop 64x48+0+0 \
+repage -level 62%,100%,1.0 +dither -colors 16 ./pns/pns48_%d.pcx
For 4x2:
convert pns.gif -coalesce -resize 85x96! -gravity Center -crop 64x96+0+0 \
+repage -level 62%,100%,1.0 +dither -colors 16 ./pns/pns96_%d.pcx

Image 0 also has a tendency to get saved as not 8BPP, in which case you will
need to convert it.

The converter is current set to optimize for speed. Change OPTIMIZE_METH to
optimize for size if you'd like. The difference is relatively minor, so it's
typically best to leave it at speed.

The 4x2 version does not seem to work in Mednafen due to the enormous size of
the ROM it seems (it works fine with 64 banks), but works in Meka just fine.