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4 comments

  1. CMR

    Copied from another person’s response:

    Every other character in video memory is having bit 3 zero’ed (this probably works out to every 4th byte taking into account the color byte in text mode). “i” (0×69) becomes “a” (0×61) “o” (0x6F) becomes “g” (0×67) “l” (0x6C) becomes “d” (0×64) “,” (0x2C) becomes “$” (0×24) etc. EDIT: After Killobyte’s comment, a closer look shows it’s every 4th character, not every other character.