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2026

Apr 11, 2026 A Calculator (10): It Works!
Apr 11, 2026 A Calculator (9): Chasing the Last Digit
Apr 11, 2026 A Calculator (8): From Dev Board to a Real Device
Apr 11, 2026 A Calculator (7): Writing Microcode for a CPU You Just Invented
Apr 11, 2026 A Calculator (6): Designing the CPU
Apr 11, 2026 A Calculator (5): The Hardware
Apr 11, 2026 A Calculator (4): The Framework
Apr 11, 2026 A Calculator (3): Practical Numerical Methods
Apr 11, 2026 A Calculator (2): Pathfinding
Apr 11, 2026 A Calculator (1): Introduction

2025

Jul 1, 2025 GitForce – Workspaces
Jul 1, 2025 GitForce – SSH
Jul 1, 2025 GitForce – Custom Tools
Jul 1, 2025 GitForce
Mar 14, 2025 Porting SpeedCrunch to WebAssembly
Jan 21, 2025 Z80 Explorer v1.06 released

2020

Aug 29, 2020 Flight Sim Remote Panel / 2
Aug 29, 2020 PlayZX
Jul 11, 2020 Z80 Explorer

2017

Aug 12, 2017 Development PC Setup

2016

Apr 24, 2016 ZX Spectrum ROM mods

2015

Jan 28, 2015 The A-Z80 CPU

2014

Dec 9, 2014 ZX Spectrum on FPGA using A-Z80 CPU
Sep 26, 2014 Z80 Library
Sep 19, 2014 A Z80 : References
Sep 19, 2014 A Z80 : The Soul
Sep 19, 2014 A Z80 : The Mind
Sep 19, 2014 A Z80 : The Heart
Sep 19, 2014 A Z80 From the Ground Up
Mar 13, 2014 The Anatomy of a Z80 Gate
Mar 7, 2014 Z80 Instruction Register deciphered
Feb 16, 2014 ZiLOG Z80 (un)documented behavior
Feb 16, 2014 Arduino and ZiLOG Z80
Jan 25, 2014 A Poem by FPGA

2013

Dec 2, 2013 PCB Making: 1. Introduction
Dec 2, 2013 PCB Making: 2. Get Started
Dec 2, 2013 PCB Making: 3. Schematics
Dec 2, 2013 PCB Making: 4. Layout
Dec 2, 2013 PCB Making: 5. The Mask
Dec 2, 2013 PCB Making: 6. Cut a Board
Dec 2, 2013 PCB Making: 7. Expose and Develop
Dec 2, 2013 PCB Making: 8. Etching
Dec 2, 2013 PCB Making: 9. Tinning
Dec 2, 2013 PCB Making: 10. Drilling holes
Dec 2, 2013 PCB Making: 11. Solder parts
Dec 2, 2013 PCB Making: 12. Protection and Sealing
Dec 2, 2013 PCB Making: 13. Enclosure
Dec 2, 2013 PCB Making: 14. Testing and Troubleshooting
Dec 2, 2013 PCB Making: 15. Software
Dec 2, 2013 PCB Making: 16. Conclusion
Nov 19, 2013 Printing from Eagle
Nov 19, 2013 Sinclair ZX81 lives on!
Nov 19, 2013 RS232 and Arduino
Nov 19, 2013 RS232 Interface
Nov 19, 2013 Parallel Port Logic Analyzer
Nov 19, 2013 Software Scope using a Sound Card
Nov 19, 2013 Accuracy of Arduino’s ADC
Nov 18, 2013 Etching the PCB: Copper etchant calculator
Feb 20, 2013 Ambient Weather WS-2080 hang fix

2010

Jun 29, 2010 Fixing convergence on TV

2009

Mar 3, 2009 Building a Custom Picture Frame

2001

May 19, 2001 VMSim – An Attempt at Virtualization