Tool ·
Write Cortex-M assembly and step through it on a simulated microcontroller: a GNU-syntax assembler for Thumb and Thumb-2 with literal pools and IT blocks, every 16- and 32-bit encoding split into its fields bit by bit, registers and NZCV with changes highlighted, memory and stack views, breakpoints, LEDs and switches on GPIO, a UART terminal, SysTick interrupts through a vector table, and Cortex-M0 or M3 cycle counts.
Tool ·
Weight and balance for your own aircraft: a profile with empty weight and arm, loading stations, fuel tanks and normal/utility CG envelopes, kept in your browser with JSON export; zero-fuel, take-off and landing weight and CG on the envelope with the fuel burn line and every limit checked; lb/in, kg/mm or kg/m; a printable sheet. Examples for the Cessna 172S, Piper Archer III and Cirrus SR22.
Article ·
How I built a modern dev kit for the 3DO Interactive Multiplayer — Norcroft ARM C in Docker, a patched Opera emulator with a GDB server and a JSON control port, and an MCP server — and used it to ship a demo and 21 games.