D73+D74: intro logo fixed (sinf/cosf endianness + texture import/sub-tile wrap)

D73 (root cause of old D72.3): GE's sinf/cosf build their double
constants through the du bit-union with big-endian word pairs {hi,lo};
on LE PC the .d read has the words swapped (rpi.d ~ 2^733), range
reduction overflows, and FTOFIX32 saturates to -32768 for every
sin/cos entry of guMtxF2L — so the Rareware logo's rotation matrix was
garbage and all its triangles projected off-screen. Fix: DVAL() macro
in src/libultra/gu/guint.h (PORT-only; #else branch is the original
expression) re-packing hi/lo into the correct LE double; sinf.c/cosf.c
.d reads replaced. N64 build untouched.

D74 (texture side, three port-layer bugs in fast3d):
- import_texture's fallback condition (rdp.tex_lod && tile >=
  first+detail) overwrote valid gDPLoadBlock tmem data with
  line*tile.height: letter mip chains 2744B -> 2048B (mips 1-5 dropped),
  D_02005FF0 32x32 -> 32x3 (stale tile.height from gsDPSetTileSize).
  Now falls back only when the tmem slot was never written.
- TextureCacheKey gains size_bytes so a truncated first import cannot
  poison later full imports of the same address.
- VBO UV path now wraps by TILE size for WRAP sub-tiles (N64 semantics);
  the logo's 20x3 tile at offset (11.5,29) was sampling row 0 instead
  of rows 29-31. Per-vertex pre-wrap; known limits: half-texel edge
  bleed, mirror sub-tiles unhandled.

Verified: clean runs reach frame ~2100 then hit the D69 load_bg_file
fault (unchanged — still the milestone blocker); PPM frame ~555 shows
the four gold RARE letters on the dark-blue plate (final pixel-perfect
check vs N64 footage left as a low-priority task). All env-gated probes
from this session (GE_DBGUV/DBGTRI/DBGTALL/DBGMAT/D74IMP/D74DUMP/
GE_DBGLOAD) stripped; previously committed TEMP D63 blocks + GE_D71LOG
remain on the HANDOFF strip list.

Docs: PCPortResearch.md §F D73/D74 entries, §G/§H status updated;
HANDOFF.md rewritten for Session I (D69 primary); AGENTS.md phase line.

AGENTS.md

@@ -48,6 +48,6 @@ Run `/linkcheck` for this sweep. Record new findings in `docs/PCPortResearch.md`
 - **Compile+link milestone:** all ~235 TUs compile and `ge007.x86_64.exe` links clean (`ninja ge007 -k 0`, 236/236). Findings D7–D17 in `docs/PCPortResearch.md` §11; asset stubs in `port/src/assetstubs.c`, fast3d no-ops in `port/src/gfxstub.c` (delete when real fast3d lands).
 - **Phase 1 (boot to window):** done — ROM loads/validates/maps at cart base 0x10000000 (`romdata.c`), SDL2 window + GL clear loop (`video.c`), absolute asset symbols from `scripts/gen_romassets.py` → `port/src/romassets_<r>.s` (findings D18–D23).
 - **Phase 1.5 (boot to first frame):** DONE — boot chain complete AND real frames render (`[NOTE] frame N rendered in … us`). D34–D42 closed the blockers on top of D31–D33: ANIM_DATA lvalues, music seq-table ABI+endianness, music-heap sizing, libaudio bank-tree re-layout, implicit-declaration prototype shim (D38), Globalimagetable rebasing + true segment size (D39), ModelHitEntry pool sizing (D40), cross-thread GL context release (D41), rsp task-settings toggle (D42). ROM dump verified against the No-Intro good dump (byte-identical, header CRCs re-checked — `tools_pc/romverify.c`).
-- **Phase 2 (rendering):** IN PROGRESS — fast3d integrated + real frames render. **Plan B EXECUTED (D50, committed):** all 512 NTSC model files converted offline by `tools_pc/d43_emit.py` → `data/pcmodels-ntsc-final/pcmodels.bin` + manifest.csv (single concatenated RZ image; regenerate per region with the script — sidecars are gitignored), served through the existing load path via a port-layer table patch (`port/src/pcmodels.c`, romdata cart-extension, one-shot `pcmodelsPatchTable()` + poolRemaining reset hook in `load_object_fill_header`); runtime C fixups for language-bank BE offset tables + font re-layout (D50.3/D50.4); legal-screen UB seed (D50.5); **D50.6 fixed the first model-render crash** — `texCopyGdls` copied only w0 of each 16-byte Gfx slot on PC (the union's trailing `long long` is 8 bytes), leaving stale mempool w1s in the compacted GDLs; byte-proven against PlegalpageZ, fixed with a full-slot copy under #ifdef PORT. Model GDLs now execute to completion (PlegalpageZ sub-DLs). **D51 RESOLVED** (font `pixeldata` fixup wrote the pointer at the wrong offsets — frame-5 `import_texture_i8` crash gone; GE opcode space decoded along the way, G_TEXRECT=0xE4/0xE5 non-F3DEX numbering), **D52 RESOLVED** (`osGetCount` now advances at the N64 RSP counter rate ≈ 46.5525 ticks/µs — fixed the non-deterministic post-frame-2 hang), **D53 RESOLVED** (model RW-data pool addressing: D53.1 `Model.datas` word-stride → `u32 *` under PORT + casts; D53.2 ModelSlot/AnimModelSlot re-laid on top of the PC struct Model — in-use@0x10 / pool@0x20, slot size = sizeof(Model) = 0xE8 — plus PORT-guarded heap-fallback bumps in model.c), **D54 RESOLVED** (cseq ALCMidiHdr BE header: port-layer `romdataFixupCseq` bswap32 of the first 17 u32s, called from music.c after each decompress), **D54b RESOLVED** (synth param slots sized for ALStartParamAlt = 0x28 in synthesizer.c alSynInit under PORT), **D55 RESOLVED** (RLE folder-menu background BE w/h header: bswap32 of the first word at `(u32 *)&unknown2` at cart-map time in romdataInit, guarded). Build GREEN; game boots, plays intro music, renders through logo/gun-barrel, instantiates Brosnan, and executes the gun-barrel hole DL clean to ENDDL. **D56 RESOLVED** (watch Model/RW-pool raw offsets: field-name Model access + static 0xC8-byte pool under PORT in bondview2.c), **D57 RESOLVED** (pointer-grown rwdata records overflowed N64-sized spare pools — Brosnan PC numRecords 153 > 140: capacities grown in initunk_005520.c + dynamic slot+pool fallback in model.c), **D58 RESOLVED** (gun-barrel DL: vertex-pointer K0 idiom rebuilt via `OS_K0_TO_PHYSICAL(…) | 0x80000000` in title.c + DL reserve 0x100→0x200 because `sizeof(Gfx)` is 16 on PC). **D59–D68 RESOLVED (committed):** the "GL DLL" crash was D64's unbounded blood-RLE write (sentinel section-adjacency lost on PC) clobbering the gun-barrel sub-DL; then D60–D62 (DMA target validation, OSMesgQueue layout), D65/D65b (HEADS/BODIES enum signed sentinels under PORT), D66 (romCopyAligned + ramrom replay 64-bit pointer width), D67 (struct image_entry N64 layout), **D68 (Globalimagetable BE→LE fixup** — `port/src/gimgfixup.c` bswaps IMAGESEG Gfx w1 words + sImageTableEntry.index after texReset's romCopy; compiled globalDL shadows synced for explosion.c). The game now renders the **entire ~3.5-minute intro** (logo → gun barrel w/ Brosnan → cast) at ~59 fps. **Current blocker D69:** `load_bg_file` (bg.c:830) faults on first stage load — BG-file headers/records are N64 big-endian segment-0x0F offsets, read LE on PC; the bg `.seg` + `Tbg_*_stanZ` format work is next (decode from bg.c/stan.c → offline sidecar conversion per the D43 pattern or runtime port-layer fixup; PD `preprocess/filebg.c` is approach-reference only — its BG format differs). **D70–D72 (intro-logo pixels):** D70 env-gated PPM frame capture (`GE_PCDUMP` → `./ppm/`, gitignored); **D71 RESOLVED** — C-array texture sources (the four rarewarelogo.c RGBA16 images) byte-swapped on LE PC → pink/green logo; port-layer per-source bswap in `import_texture`; **D72 RESOLVED** the UV path (GE always uses authored `tc[]` UVs — no G_TT_BASE/CLAMP anywhere; `lookat_enabled` defaults false since N64 boots with RSP mem zeroed) but **D72.3 OPEN**: all logo triangles project off-screen and a flat dark-blue checkerboard triangle rasterizes instead (identity pending via `GE_DBGUV`/`GE_DBGTALL` traces); D69 remains the milestone blocker. Committed through D72. Recurring sub-task: ABI/layout fixes per the D32 procedure (§H) as more asset types are first touched (PD's `preprocess/` module already solves most of them; prefer the offline pattern for format work — D48; full-struct Gfx copies on PC — D50.6; audit struct type-puns after pointer-width changes — D53.2; raw byte offsets into pointer-containing structs shift on PC — D56; N64-sized reservations must be re-checked against 16-byte Gfx/Vtx widths — D58).
+- **Phase 2 (rendering):** IN PROGRESS — fast3d integrated + real frames render. **Plan B EXECUTED (D50, committed):** all 512 NTSC model files converted offline by `tools_pc/d43_emit.py` → `data/pcmodels-ntsc-final/pcmodels.bin` + manifest.csv (single concatenated RZ image; regenerate per region with the script — sidecars are gitignored), served through the existing load path via a port-layer table patch (`port/src/pcmodels.c`, romdata cart-extension, one-shot `pcmodelsPatchTable()` + poolRemaining reset hook in `load_object_fill_header`); runtime C fixups for language-bank BE offset tables + font re-layout (D50.3/D50.4); legal-screen UB seed (D50.5); **D50.6 fixed the first model-render crash** — `texCopyGdls` copied only w0 of each 16-byte Gfx slot on PC (the union's trailing `long long` is 8 bytes), leaving stale mempool w1s in the compacted GDLs; byte-proven against PlegalpageZ, fixed with a full-slot copy under #ifdef PORT. Model GDLs now execute to completion (PlegalpageZ sub-DLs). **D51 RESOLVED** (font `pixeldata` fixup wrote the pointer at the wrong offsets — frame-5 `import_texture_i8` crash gone; GE opcode space decoded along the way, G_TEXRECT=0xE4/0xE5 non-F3DEX numbering), **D52 RESOLVED** (`osGetCount` now advances at the N64 RSP counter rate ≈ 46.5525 ticks/µs — fixed the non-deterministic post-frame-2 hang), **D53 RESOLVED** (model RW-data pool addressing: D53.1 `Model.datas` word-stride → `u32 *` under PORT + casts; D53.2 ModelSlot/AnimModelSlot re-laid on top of the PC struct Model — in-use@0x10 / pool@0x20, slot size = sizeof(Model) = 0xE8 — plus PORT-guarded heap-fallback bumps in model.c), **D54 RESOLVED** (cseq ALCMidiHdr BE header: port-layer `romdataFixupCseq` bswap32 of the first 17 u32s, called from music.c after each decompress), **D54b RESOLVED** (synth param slots sized for ALStartParamAlt = 0x28 in synthesizer.c alSynInit under PORT), **D55 RESOLVED** (RLE folder-menu background BE w/h header: bswap32 of the first word at `(u32 *)&unknown2` at cart-map time in romdataInit, guarded). Build GREEN; game boots, plays intro music, renders through logo/gun-barrel, instantiates Brosnan, and executes the gun-barrel hole DL clean to ENDDL. **D56 RESOLVED** (watch Model/RW-pool raw offsets: field-name Model access + static 0xC8-byte pool under PORT in bondview2.c), **D57 RESOLVED** (pointer-grown rwdata records overflowed N64-sized spare pools — Brosnan PC numRecords 153 > 140: capacities grown in initunk_005520.c + dynamic slot+pool fallback in model.c), **D58 RESOLVED** (gun-barrel DL: vertex-pointer K0 idiom rebuilt via `OS_K0_TO_PHYSICAL(…) | 0x80000000` in title.c + DL reserve 0x100→0x200 because `sizeof(Gfx)` is 16 on PC). **D59–D68 RESOLVED (committed):** the "GL DLL" crash was D64's unbounded blood-RLE write (sentinel section-adjacency lost on PC) clobbering the gun-barrel sub-DL; then D60–D62 (DMA target validation, OSMesgQueue layout), D65/D65b (HEADS/BODIES enum signed sentinels under PORT), D66 (romCopyAligned + ramrom replay 64-bit pointer width), D67 (struct image_entry N64 layout), **D68 (Globalimagetable BE→LE fixup** — `port/src/gimgfixup.c` bswaps IMAGESEG Gfx w1 words + sImageTableEntry.index after texReset's romCopy; compiled globalDL shadows synced for explosion.c). The game now renders the **entire intro** (logo → gun barrel w/ Brosnan → cast; ~frame 2100, ≈2 min wall-clock at the current ~20 fps clean-run rate). **Current blocker D69:** `load_bg_file` (bg.c:830) faults on first stage load — BG-file headers/records are N64 big-endian segment-0x0F offsets, read LE on PC; the bg `.seg` + `Tbg_*_stanZ` format work is next (decode from bg.c/stan.c → offline sidecar conversion per the D43 pattern or runtime port-layer fixup; PD `preprocess/filebg.c` is approach-reference only — its BG format differs). **D70–D74 (intro-logo pixels, RESOLVED):** D70 env-gated PPM frame capture (`GE_PCDUMP` → `./ppm/`, gitignored — kept as permanent dev tooling); **D71** C-array texture sources (the four rarewarelogo.c RGBA16 images) byte-swapped on LE PC → port-layer per-source bswap in `import_texture`; **D72** the UV path (GE always uses authored `tc[]` UVs; `lookat_enabled` defaults false); **D73 = root cause of old D72.3** — sinf/cosf `du` double constants are big-endian word pairs, garbage on LE PC → guMtxF2L emitted −32768 for every sin/cos entry → logo triangles projected off-screen; fixed with the PORT-only `DVAL()` macro in `src/libultra/gu/guint.h` (sinf.c/cosf.c `.d` reads replaced; N64 build untouched); **D74** texture import fallback no longer truncates valid gDPLoadBlock data (was dropping letter mip chains + reducing D_02005FF0 to 32×3), `TextureCacheKey` gained `size_bytes`, and the VBO path wraps UVs by tile size for WRAP sub-tiles (N64 semantics). The Rareware logo now renders its four gold letters on the dark-blue plate (PPM-verified ~frame 555; final pixel-perfect check vs N64 footage optional). D69 remaLine truncated
 - **Phase 3 (audio + input):** libaudio → SDL — largely copy-and-adapt from PD (`mixer.c` 722 lines vs our 31-line stub; `input.c` SDL_GameController backend; §2.4); decide the ASP strategy (C2: `aspMain*` dummies in `ucode.c`).
 - **Phase 4 (saves + polish):** file-backed EEPROM — build on PD's `fs.c` (file-backed save dir); PFS/motor already no-op stubs.