Yes! I learned 6502 assembly from the Apple ][ system manual. You got the op code tables, the schematics and Woz‘s monitor incl. listing and a disassembler. It

Yes! I learned 6502 assembly from the Apple ][ system manual. You got the op code tables, the schematics and Woz‘s monitor incl. listing and a disassembler. It motivated me to learn English, forced me to carefully calculate relative jumps and taught me to think first then code. Two of the three still useful skills.