Astéroric ported to the Neo6502 (cc65): arcade logic kept as is, API XOR lines, smoothed polygonal asteroids drawn by the RP2040, remappable HID keyboard, 4-channel sound, 30 Hz. .neo binary published.
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 →