breakintoprogram

pico-mposite. A hacked together demo for the Raspberry Pi Pico to output a composite video signal from the GPIO

lib-spectrum. ZX Spectrum library routines

archive-follin. An archive of music source code and drivers donated by Tim and Geoff Follin.

agon-bbc-basic. Official AGON QUARK Firmware: BASIC Interpreter

agon-vdp. Official AGON QUARK Firmware: ESP32 VDP

agon-mos. Official AGON QUARK Firmware: eZ80 MOS

agon-docs. Official AGON QUARK Firmware Documentation

next-bbc-basic. A port of BBC Basic for Z80 to the Spectrum Next

lib-spectrum-next. ZX Spectrum Next library routines

bsx. Z80 based homebrew computer

next-3D. A 3D library for the ZX Spectrum Next

agon-projects. Official AGON QUARK Firmware: Projects

agon-bbc-basic-adl. Official AGON QUARK Firmware: BASIC Interpreter (ADL version)

cerberus. Cerberus 2080 and 2100 firmware including BBC BASIC for Z80

agon-bbc-basic-v. BBC BASIC for the Z80 CPU (Agon Edition)

lib-acorn-bbc. BBC Micro/Master/Acorn Electron library routines

emulator-z80. Speculation is my Sinclair Spectrum Z80 emulator written mostly as an exercise in C/C++

breakintoprogram. Config files for my GitHub profile.

einstein-eintrans. An attempt to preserve and document the Tatung Einstein utility EinTrans

einstein-ide. Tatung Einstein cross-development IDEs for Z80 and 6502