CmdID / Commands
Convert a PPM file to an Atari Spectrum 512 image. tldr-pages
On several platforms
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Convert a PPM file to an Atari Spectrum 512 image
ppmtospu path/to/input.ppm >path/to/output.spu
Use a dithering matrix of the specified size (0 means no dithering)
ppmtospu -d0 path/to/input.ppm >path/to/output.spu