Frank O'Hara

Articles

• Numbers Held Inexactly on the ZX81
• Numbers Held Inexactly on the ZX81
• Numbers Held Inexactly on the ZX81, Part 4
• Program Improvements
• Program Improvements
• Spaces in REM Statements

Books

• The Complete Spectrum ROM Disassembly
• The Complete Timex TS1000/Sinclair ZX81 ROM Disassembly