ppmtospu

Convert PPM to Atari Spectrum 512

$ ppmtospu [input.ppm] > [output.spu]

ppmtospu [options] [file]

ppmtospu converts PPM images to Atari Spectrum 512 format, which displays 512 colors on Atari ST. Part of Netpbm toolkit.

-d

Double resolution.

sputoppm(1), ppmtoneo(1)