XEMAG info from Peter Brown
Full article is at: https://prism.ucalgary.ca/bitstream/handle/1880/112303/2020-1115-01.pdf?sequence=1&isAllowed=y
C64 Copy Protection
Documenting the History of the Commodore 64 protection scene
XEMAG info from Peter Brown
Full article is at: https://prism.ucalgary.ca/bitstream/handle/1880/112303/2020-1115-01.pdf?sequence=1&isAllowed=y