Tachibana
たちばな — the wild citrus
Documented software, most of it published with its source code; the Neo6502 software is tested on the board.
Where to start
Trinity, our alternative firmware for the Olimex board, and a reference of its API, with verified examples.
Get started · Trinity · API
The Neo6502 dossier →Phosphoric, an Oric emulator that also runs in the browser, and software for the machine.
Phosphoric · Astéroric · Software
The Oric dossier →3617 TACHIBANA, a live Minitel service, a Minitel terminal for the Oric and a Wi-Fi modem.
3617 TACHIBANA · OricTel · Oric Wi-Fi modem
Telematics →Articles
Latest Trinity version 0.16.71 · In development · published on Download and flash →
Prophet 0.25 on prophet.3617.fr: play in the browser (Phosphoneo and Phosphoric in WebAssembly), the Oric as a second platform with ProphetOric, required components, firmware category, CRC-32, a two-language site. Read the article →
Debugging the Neo6502 over SWD: a Pico W flashed with debugprobe, three wires (GP2, GP3, GND), OpenOCD, reading the running RP2040's memory, injected keystrokes, the core 0 rule — with photos of the bench. Read the article →
On the Neo6502, the first DIR command in Hercules mode switched the screen off. Twelve fixes, eleven refuted by measurement, four miscalibrated instruments — and at the end, an SDK spinlock shared between the two cores, delaying the video interrupt by a single scanline. Read the article →
Figures recomputed on every site update; versions surveyed on .
Copy and document what still exists: ROMs, schematics, manuals, floppy disks.
Write new software for these machines: firmware, emulators, tools, games.
What actually helps us:
Our code : github.com/benedictemarty · codeberg.org/benedicte