Oric Chess 0.1: our chess engine on the Atmos
Oric Chess 0.1, beta on Prophet: the Neo6502 Chess engine on the Oric Atmos, in 240 × 200 hi-res, menus, help, saved games on a Sedoric disk. Read the article →
Articles #neo6502
All our articles, newest first: Oric, Neo6502, Minitel. Filter by tag:
10 article(s)
Neo6502 Chess 0.1: chess in assembly, online
Neo6502 Chess 0.1, beta on Prophet: a chess engine in 6502 assembly, pieces in relief, clocks, playing aids, online games through a Pico W modem. Read the article →
Le Manoir du Dr Genius returns, in isometric view
Le Manoir du Dr Genius, isometric edition (MDG-NG): Loriciels' Oric adventure as a point-and-click game on the Neo6502, beta 0.95.7 on Prophet. Read the article →
Using Phosphoneo: play, test, script and debug on the Neo6502
Using Phosphoneo, the Neo6502 emulator: real-time window, headless trials with screenshots and automatic typing, scripted and filmed play-throughs, debugging, save states, browser, tests — and its limits. Read the article →
Prophet 0.25: play in the browser, and the Oric
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 as a probe
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 →
A DIR that switches off the screen: hunting a shared lock
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 →
Building a Prophet server for the Neo6502
Go reimplementation of the Prophet server (Neo6502 program repository): byte-for-byte compatible protocol with prophet.neo, hardened point by point, HTTP + HTTPS, .neo verification, dynamic audit of 56 programs in Phosphoneo, web interface, production at prophet.3617.fr. Read the article →
Porting: from Astéroric to AsteroNeo
Porting Astéroric (a study clone of Asteroids for the Oric-1) to the Neo6502: arcade logic kept, XOR rendering through the firmware API, half-open lines, 16-bit coordinates, 30 Hz, HID keyboard, 4-channel sound, the cc65 OptStackOps case, bit-for-bit tests in Phosphoneo — then the tests on a real board. Read the article →
Neo6502: a real 65C02 and an RP2040 for 30 euros — our work in progress
The Neo6502 (W65C02S + RP2040, firmware by Paul Robson) as seen by Tachibana: Phosphoneo, Neo6502kbd, Neo6502bbc, Trinity, AsteroNeo, Prophet, framing — now tested on a real board. Read the article →