CDROM (adapted from v3, 487 lines):
- Removed event_deliver() — HLE disease. IRQ delivery is now purely
via i_stat bit 2; the recompiled BIOS exception handler processes
CDROM events natively through its own EvCB table.
- Removed CPUState* from all function signatures — hardware registers
don't need CPU state.
- Removed hard-coded RAM writes (0x800DEE54 etc.) — BIOS kernel state
manipulation disguised as hardware sim.
- Removed all fprintf.
- Kept: register banking, command processing, sector reads, DMA interface.
SPU (new, 89 lines, register map from v2 reference):
- Accepts all SPU register reads/writes at 0x1F801C00-0x1F801FFF
- 512KB SPU RAM with transfer address tracking and FIFO writes
- DMA4 write interface for bulk transfers
- SPUSTAT returns 0 (ready, not busy)
- No audio synthesis — placeholder for SDL_audio integration later
Memory.c: replaced inline spu_regs[] array and stub CDROM handlers
with calls to the proper cdrom.c and spu.c modules.
Validated: BIOS boots identically (16,859 GP0 writes, 1,149 draws).
No regression from previous commit.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Matthew Stanley