Matthew Stanley 8e81afd111 fix: conditional branch fall-through + Tier 1 reverse debugger ...

Recompiler bug fix: full_function_emitter treated conditional branch
delay slots at function boundaries as fully resolved control flow,
suppressing the fall-through tail call for the "not taken" path.
This broke 15 cross-function fall-throughs across the BIOS, most
critically the find-free-EvCB-slot function (BFC11800) whose search
loop was silently skipped — causing OpenEvent to return garbage handles
(0xF100E1E8) instead of valid slot indices (0xF1000000..0xF1000005).

Fix: only suppress fall-through for unconditional flow (j/jr/jal/jalr/rfe).
Conditional branches (beq/bne/blez/bgtz/bltz/bgez) now always emit
`cpu->pc = next_addr; return;` for the not-taken path.

Also included:
- Tier 1 reverse debugger: 1M-entry write trace ring (32 MB),
  64K-entry MMIO trace ring (2 MB), 8-slot multi-range address
  filtering, function attribution via g_debug_current_func_addr.
  6 new TCP commands: wtrace_add/del/ranges/stats, mmio_dump/clear.
- 3 new dispatch seeds for functions exposed by fall-through fix
  (SIO epilogue, exception chain walker, GTE init).
- Diagnostic tools: analyze_sio_trace, decode_insn, decode_jt, mmio_tally.
- Pattern 5 trampoline fix + PLAN.md Phase 4 status update.

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

2026-04-21 14:23:09 -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: conditional branch fall-through + Tier 1 reverse debugger

2026-04-21 14:23:09 -07:00

dma.c

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

2026-04-12 20:29:03 -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: wire cdrom_tick into vblank interval, fire IRQ on command completion

2026-04-13 00:41:02 -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

Add CDROM controller and SPU register sink, wire into MMIO

2026-04-12 21:20:12 -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

fix: conditional branch fall-through + Tier 1 reverse debugger

2026-04-21 14:23:09 -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

timers.c

Phase 2 complete: BIOS boots to GPUSTAT read

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

traps.c

fix: conditional branch fall-through + Tier 1 reverse debugger

2026-04-21 14:23:09 -07:00