Matthew Stanley 08ef235e63 fix: oracle interpreter — undefined opcodes as NOP + interrupt injection + VBlank tick ...

- Undefined SPECIAL/opcode encodings treated as NOP (R3000 doesn't trap)
- Added VBlank scheduling + interrupt injection to interpreter loop
  (fires exception at SR/I_STAT/I_MASK conditions, same as interrupts.c)
- Extended memory control register range to 0x1F80103C
- Added boot trace + PC breakpoint diagnostics

Found: BIOS C0-table lookup returns NULL function ptr at instruction
~65K → jr $t0 where $t0=0 → NOP slide through zero RAM → stuck.
The interpreter needs to handle this gracefully to boot past kernel
init. DuckStation doesn't have this issue because its C0 table is
populated by the time the call happens.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-04-21 22:52:31 -07:00

..

cdrom.c

fix: wire cdrom_tick into vblank interval, fire IRQ on command completion

2026-04-13 00:41:02 -07:00

crc32.c

Salvage clean hardware sim from v2/v3: GTE, SW renderer, ISO reader, CRC32

2026-04-12 20:57:41 -07:00

debug_server.c

fix: enable DMA completion IRQ + DICR byte access + 5 VBlank seeds

2026-04-21 20:06:15 -07:00

dma.c

fix: enable DMA completion IRQ + DICR byte access + 5 VBlank seeds

2026-04-21 20:06:15 -07:00

gpu_sw_renderer.c

Salvage clean hardware sim from v2/v3: GTE, SW renderer, ISO reader, CRC32

2026-04-12 20:57:41 -07:00

gpu.c

Wire SW renderer into GPU: textures, Gouraud shading, VRAM copy working

2026-04-12 21:09:16 -07:00

gte.cpp

Salvage clean hardware sim from v2/v3: GTE, SW renderer, ISO reader, CRC32

2026-04-12 20:57:41 -07:00

interrupts.c

fix: exception handler chain walk + shell reaches Memory Card/CD-ROM screen

2026-04-21 18:13:51 -07:00

iso_reader_c.cpp

Salvage clean hardware sim from v2/v3: GTE, SW renderer, ISO reader, CRC32

2026-04-12 20:57:41 -07:00

iso_reader.cpp

Salvage clean hardware sim from v2/v3: GTE, SW renderer, ISO reader, CRC32

2026-04-12 20:57:41 -07:00

main.cpp

fix: oracle interpreter — undefined opcodes as NOP + interrupt injection + VBlank tick

2026-04-21 22:52:31 -07:00

memcard.c

Phase 4 interrupt fixes: RFE, GPR save/restore, DMA IRQ edge-trigger

2026-04-12 20:29:03 -07:00

memory.c

feat: native PSX oracle — R3000A interpreter + dual CMake targets

2026-04-21 21:34:28 -07:00

psx_interpreter.c

fix: oracle interpreter — undefined opcodes as NOP + interrupt injection + VBlank tick

2026-04-21 22:52:31 -07:00

sio.c

Phase 4 interrupt fixes: RFE, GPR save/restore, DMA IRQ edge-trigger

2026-04-12 20:29:03 -07:00

spu.c

Add CDROM controller and SPU register sink, wire into MMIO

2026-04-12 21:20:12 -07:00

stub_interpreter.c

feat: native PSX oracle — R3000A interpreter + dual CMake targets

2026-04-21 21:34:28 -07:00

timers.c

Phase 2 complete: BIOS boots to GPUSTAT read

2026-04-12 00:03:46 -07:00

traps.c

fix: exception handler chain walk + shell reaches Memory Card/CD-ROM screen

2026-04-21 18:13:51 -07:00