Golden-model emulator of the Neo6502: cycle-stepped, 65C02 core 100% on the SingleStepTests oracle (2.54 M cases), firmware API linked from the official code, headless, captures, savestates. v0.2.0.
Status Sprint 1 delivered
In the line of Phosphoric, Phosphoneo is a golden-model emulator of the Neo6502: cycle-stepped, 65C02 core 100% validated on the SingleStepTests oracle (2.54 million cases), firmware API linked from the official code, deterministic tooling (headless, captures, auto-typing, traces, savestates). Sprint 1 delivered (v0.2.0): NeoBASIC boots headless and captures match the official emulator.
Source code not published yet.
The Neo6502 (W65C02S + RP2040, firmware by Paul Robson) as seen by Tachibana: Phosphoneo, Neo6502kbd, Neo6502bbc, firmware fork, AsteroNeo, Neo6502Prophet, framing — now tested on a real board. Read the article →
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 →
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 →