RGBtoHDMI. Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI
1kPiTubeDirect. Bare-metal Raspberry Pi project that attaches to the Acorn TUBE interface and emulates many BBC Micro Co Processors
206AtomBusMon. This project is an open-source In-Circuit Emulator for the 6502, 65C02, Z80, 6809 and 6809E 8-bit processors. See:
108MMFS. Modern SD Card File System for Acorn 8-bit Machine (Master, Beeb, Electron)
83CoPro6502. FPGA implementations of BBC Micro Co Processors (65C02, Z80, 6809, 68000, x86, ARM2, PDP-11, 32016)
79BeebFpga. VHDL
646502Decoder. 6502/65C02/65816/6800/SCMP-II Bus Protocol/Instruction Stream Decoder (for logic analysis capture files)
40atf15xx_yosys. Design Flow for Atmel/Microchip ATF15xx CPLDs using Yosys and the Atmel Fitter
38AtomFpga. Hoglet's version of the Acorn Atom FPGA, based on AlanD's original from stardot.org.uk
36PiTubeClient. Raspberry Pi Tube Client
27Z80Decoder. Z80 Protocol Decoder (for logic analysis capture files)
25verilog-6502. A Verilog HDL model of the MOS 6502 CPU
24AtomSoftwareArchive. Software relating to the Acorn Atom Software Archive of stardot.org.uk
236809Decoder. 6809 / 6309 Protocol Decoder (for logic analysis capture files)
22Ice40Atom. Acorn Atom implementation for the Ice40 (myStorm BlackIce)
17Ice40CPMZ80. Multicomp Z80 CP/M implementation for the Ice40 (myStorm BlackIce)
16ElectronFpga. C
16pico_bus6502. Experimenting with using Pico PIO as a 6502 Bus Interface
14Ice40Beeb. BBC Model B implementation for the Ice40 (myStorm BlackIce)
12Ice40JupiterAce. Simple Jupiter Ace implementation for the Ice40 (myStorm BlackIce)
12Atomulator. Atomulator is an Acorn Atom Emulator
11Ice40LogicSniffer. BlackIce port of the Open Bench Logic Sniffer
10perfect6502. perfect6502, a MOS 6502 CPU emulator that performs a simulation of the original NMOS 6502 netlist
10Music5000. FPGA implementation of the 1980's "Music 5000" wavetable synthesiser
9AtomGodilVideo. New Video Adapter for Acorn Atom implemented in a GODIL FPGA
9TubeULA. BBC Micro Tube ULA Image Processing Code
8Papilio_One_OLS. Open Bench Logic Sniffer (Demon Core, Verilog) (3.08 with edge triggers)
8Z80Simulator. C++
7ADFS130. BeebASM Source for various versions of Acorn ADFS 1.0x (Electron) and 1.3x (Model B)
6BeebAccelerator. A high-speed replacement 65C02 CPU for the Beeb; meets timing at 80MHz, seems stable at 100MHz!
6libsigrokdecode. Official read-only mirror of libsigrokdecode.
5ADFS. Assembly
5ReTuLaReMake. Open Source Tube ULA Remake
5Beeb1MHzBusFpga. Beeb 1MHz Bus Fpga Adapter and related projects
4TangNano20KMultiboot. A build system for a four core (Beeb/Master/Electron/Atom) image for the Tang Nano 20K
4Optima. Acorn Atom Emulator for the Raspberry Pi
4pico-swram. Pi Pico acting as a 16K Sideways RAM for the Acorn Electron
4pico_atomvga. Chris Moulang's Pico-based Atom VGA Adapter
4BBCBasic4r32. A disassembly of BBC Basic 4r32
4BBCBasicSBC02. BBC Basic for the Grant Searle Minimal 6502 SBC
4Microtan65-FPGA. Tangerine Microtan 65 FPGA re-implementation
3Pi1MHz. Beeb 1MHz bus device emulator in a RaspberryPi
3BBCSDL. BBC BASIC for SDL 2.0: for Windows, Linux (86), MacOS, Raspberry Pi, Android and iOS.
3HDLTutorial. A basic Verilog and VHDL tutorial
3jan_vibe_archive. Jan Vibe's BASIC Programs Archive (freeware)
36502Life. Experiments with Conway's Game of Life on the Acorn Atom and BBC Micro
3DSPFract. Papilio Duo port of DSPFract from Mike Field @ Hamsterworks
3beeb6809. beeb6809 development - ROMS and test discs
2SBC09. Respsitory for the SBC09 6809/6309 Board Design
2TubeSoftwareArchive. An archive of software for the family of BBC Micro Second Processors
2acorn_postbox. Acorn ARM/RISC OS POST code reader
2pdp11pispigot. A port of Vol's Pi Spigot to the BBC PDP-11 Second Processor
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