A. P. Stephenson

• Machine Code for Beginners
• Advanced Electron machine code techniques
• Advanced machine code programming for the Commodore 64
• Advanced machine code techniques for the BBC micro
• Discovering BBC micro machine code
• Exploiting BBC BASIC
• Filing systems and databases for the Amstrad CPC464
• Filing systems and Databases for the BBC Micro
• Filing systems and databases for the Commodore 64
• 6502machine code for beginners
• Assembly Language for the Amstrad CPC 464/664/6128
• Beginner's guide to BASIC programming