Understanding the MOS paper tape format used by the KIM-1 and other 6502 systems. Breaking down the hex format line by line with checksum verification.

Recreating the visual 100 door problem from vintage 8-bit machines in Python using the Asciimatics library for ASCII screen positioning.

Generating all 362,880 permutations of 1-9 the hard way: understanding algorithms instead of relying on library functions. Implementations in Python, BASIC, and 6502 assembly.