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Author SHA1 Message Date
Matthew Stanley 5041712a05 runtime: phase-5 checkpoint — event-timeline ring, instant-disc rate fix, overlay diagnostics 
Accumulated working-tree state for the overlay-JIT-cache phase, committed as a
checkpoint before the Bug A fix (next commit):

- event_ring.{c,h}: always-on unified event-timeline ring (IRQ deliver/gate/
  raise, I_STAT changes, DMA kick/sched/done, ENQ/DEQ per source, exec-mode
  tagged). Edge-recorded, eviction-bounded, survives a blue screen; dump via
  event_ring_dump/_tail/_clear.
- cdrom.c: disc_speed="instant" no longer collapses every sector read to the
  500cy floor (which flooded ~1100 DMA3 completions/frame and starved main
  code). CDROM_INSTANT_PERIOD bounds sector IRQs to CDROM_INSTANT_MAX_PER_FRAME
  (32)/frame. Known caveat: a transient ~1-2s reentry storm at boot frame ~210
  still trips the watchdog once, then recovers.
- interrupts.c: claimed-IRQ cooldown is now per-source — SIO stays 0 (card
  reads need back-to-back IRQs); DMA/VBLANK/timer get CLAIMED_PROGRESS_QUANTUM
  (8) blocks of guaranteed main-code progress between deliveries. Root cause of
  the instant-disc freeze: cooldown=0 let the block leader re-take the
  exception before its body ran (pinned at the 0x8005A1D8 field loop).
- gpu/dma/memory/sio/timers/psx_cycles: event-ring instrumentation at raise/
  kick/complete/schedule sites; g_event_step_conservative (single-cycle event
  stepping A/B used to refute the event-granularity hypothesis for Bug A).
- overlay_capture.c, overlay_loader.h, crc32: capture/manifest plumbing for
  per-entry validity (Inc3).
- recompiler: overlay-mode emission updates (code_generator, main_psx).
- tools: compile_overlays.py audit/patch updates; tomba_loadtest.py.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
 2026-06-09 12:24:40 -07:00
Matthew Stanley 4068518b04 runtime: add release asset picker 2026-05-17 17:16:14 -07:00
Matthew Stanley adaea3d8bf Salvage clean hardware sim from v2/v3: GTE, SW renderer, ISO reader, CRC32 
Audited psxrecomp-v3 and psxrecomp-v2 hardware simulation files.
Carried forward only pure hardware simulation with zero HLE/BIOS
contamination. Each file was read in full and checked for:
- event_deliver / bios_ / interpreter_ references (none found)
- printf/fprintf (removed from GTE, none in others)
- stubs (return 0, TODO, FIXME) (none found)
- v3-specific state dependencies (removed psx_runtime.h, automation.h)

Added files:
- gte.cpp/h: COP2 coprocessor (876 lines, all GTE commands)
- gpu_sw_renderer.c/h: Software rasterizer with texture support (723 lines)
- crc32.c/h: CRC32 utility (27 lines)
- iso_reader.cpp/h + iso_reader_c.cpp: ISO 9660 reader (490 lines)

Modified:
- cpu_state.h: Added gte_data[32] and gte_ctrl[32] arrays
- CMakeLists.txt: Added new source files

Explicitly rejected (per CLAUDE.md rule 7):
- bios.c, events.c, threads.c, interpreter.c (HLE/kernel state)
- bios_trace.c, func_logger.c, main_runner.cpp (interpreter era)
- cdrom.c (has event_deliver + hard-coded RAM writes, needs surgery)
- spu.cpp from v2 (WinMM-only, needs SDL port)

Build verified: clean compile and link.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-04-12 20:57:41 -07:00