Fix GekkoCore lurking bugs

ogamespec commented 4 years ago

After adding MMU emulation and cache, some strange bugs appeared. It is necessary to localize and eliminate them.

[x] MMU ARAM mapping fails at random address
[x] Bust-a-Move does not start due to some cache problems
[x] FIFO integrity is violated (it doesn’t apply to GekkoCore, but it appeared after the implementation of GatherBuffer)
[x] GCLinux does not want to start (MMU?)
[x] Locked Cache bugs
[x] Samurai Jack: dcbi 0xE000'0000 before LCEnable (#DSI)
[x] FF:Crystal Chronicles: dcbf 0x8180'0000 (#DSI)
[x] I-Ninja: dcbf 0 (#DSI)
[x] IPL DCFI causes to blr 0
[x] IPL __init_data crashes

ogamespec commented 4 years ago

DCInvalidate (0xE000'0000);
LCEnable
Complain on Twitter that when you were a developer, the GameCube had buggy hardware

ogamespec commented 1 year ago

IPL __init_data crashes

Fixed by implementing proper instruction cache.

ogamespec commented 1 year ago

Closing this Issue, will create others on vm.a library (SDR1 usage) and on random DSI/ISI when booting from a DVD

emu-russia / pureikyubu