Breathing New Life into PCjr: Rebuilding IBM’s BIOS from Print Edition
A retrocomputing piece describes reconstructing a byte-identical IBM PCjr BIOS from the original printed x86 assembly, using a DOS/DOSBox toolchain included in a ZIP to assemble, link, and convert the code into a BIN suitable for two 32 KB ROMs—highlighting that IBM copyright still applies while preserving a slice of PC history.