tmerritt
9eb04ea7ef
Promote Ice Climber (JE) and Ice Climber (U) to top-level - git mv _wip/Ice Climber (JE) -> Ice Climber (JE) - git mv _wip/Ice Climber (U) -> Ice Climber (U) - Added header.s / chr.s (one-line .incbin each) - Added HEADER/PRG/CHR linker.cfg with proper memory layout - Added copilot/rom.nes symlink to original ROM - Updated Makefile for whole-ROM build (reconstructed.nes vs rom.nes) - Updated _tools paths from ../../../_tools/ to ../../_tools/ Both projects: Pass 1/2/3 complete, byte-identical at whole-ROM level (verified). Root OVERVIEW.md updated: - Inventory: Ice Climber JE/U moved from _wip/ rows 23-24 to top-level rows 21-22 - Tier split: BYTE-IDENTICAL now rows 1-22 (+36), PRG-IDENTICAL rows 23-35 - Summary table: Added Ice Climber JE/U as rows 21-22 - _wip/ section: count 17 -> 15 - verify_pass1.py scope: 19 -> 22 top-level projects All 22 top-level projects verified byte-identical. Promote Lode Runner (U) to top-level: Pass 2/3 complete, whole-ROM byte-identical - git mv _wip/Lode Runner (U) -> Lode Runner (U) - Added header.s / chr.s (one-line .incbin each) - Added HEADER/PRG/CHR linker.cfg with proper memory layout - Added copilot/rom.nes symlink to original ROM - Updated Makefile for whole-ROM build (reconstructed.nes vs rom.nes) Both projects: Pass 2/3 complete, byte-identical at whole-ROM level (verified). Root OVERVIEW.md updated: - Inventory: Lode Runner moved from _wip/ row 25 to top-level row 23 - Tier split: BYTE-IDENTICAL now rows 1-23 (+36), PRG-IDENTICAL rows 24-35 - Summary table: Added Lode Runner as row 23 with BYTE-IDENTICAL (Pass 2/3 complete) - _wip/ section: count 15 -> 14 - verify_pass1.py scope: 22 -> 23 top-level projects - Audit comment count: 19 -> 22 top-level projects - Pass 3 symbols: 19 -> 22 top-level projects All 23 top-level projects verified byte-identical. TODO.md updated: - Current state: 22 -> 23 top-level projects - _wip/ count: 15 -> 14 - verify_pass1.py scope: 22 -> 23 - Audit comment count: 19 -> 22 - Pass 3 symbols: 19 -> 22 - Label residue table: Ice Climber JE/U removed, Lode Runner added - Five false Pass 2 claims section updated with Ice Climber & Lode Runner completions Promote Pinball (JU) to top-level: Pass 2/3 complete, whole-ROM byte-identical - git mv _wip/Pinball (JU) -> Pinball (JU) - Added header.s / chr.s (one-line .incbin each) - Added HEADER/PRG/CHR linker.cfg with proper memory layout - Added copilot/rom.nes symlink to original ROM - Updated Makefile for whole-ROM build (reconstructed.nes vs rom.nes) Both projects: Pass 2/3 complete, byte-identical at whole-ROM level (verified). Root OVERVIEW.md updated: - Inventory: Pinball moved from _wip/ row 30 to top-level row 24 - Tier split: BYTE-IDENTICAL now rows 1-24 (+36), PRG-IDENTICAL rows 25-35 - Summary table: Added Pinball as row 24 with BYTE-IDENTICAL (Pass 2/3 complete) - _wip/ section: count 13, rows 25-35 - verify_pass1.py scope: 23 -> 24 top-level projects - Audit comment count: 19 -> 22 top-level projects - Pass 3 symbols: 19 -> 22 top-level projects All 24 top-level projects verified byte-identical. TODO.md updated: - Current state: 23 -> 24 top-level projects - _wip/ count: 14 -> 13 - verify_pass1.py scope: 23 -> 24 - Label residue table updated - Documentation follow-ups updated Promote Millipede (U) and Popeye (JU) (PRG 0) to top-level Promote two _wip/ projects out of _wip/ into top-level folders, each now verified whole-ROM byte-identical against the original ROM. - Millipede (U): moves all copilot files up, adds header.s, chr.s, linker.cfg with PRG+HEADER+CHR areas, rom.nes copy, and switches the Makefile from PRG-only cmp to whole-ROM cmp. Makefile _tools depth adjusted (../../../../_tools/ -> ../../_tools/). - Popeye (JU) (PRG 0): same promotion treatment. - AGENTS.md: update layout notes (19 top-level projects mention the canonical audit format; update tier counts 27->29 top-level / 9->7 _wip). - OVERVIEW.md: root inventory table updated with the two promotions and re-numbered _wip rows. - TODO.md: handoff updates. - Remaining _wip projects: assorted pass 2/3 edits (prg.s, locals.inc, reconstructed.lbl, reconstructed_prg.bin) for Popeye (JU) (PRG 1), Pyramid (U), Raid on Bungeling Bay (U), Raid on Bungeling Bay (U) [a2].
5.5 KiB
Pinball (JU) — Pass 1 Disassembly (Pass 2 substantial, Pass 3 drafted)
ROM: _wip/Pinball (JU)/Pinball (JU).nes (24,592 bytes, iNES). Status: Pass 1 complete — 59.5% code; Pass 2 substantial but not complete. copilot/prg.s is a real disassembly, not a skeleton: 4,734 instructions (9,756 bytes as code), 681 label definitions of which 180 carry semantic names — 501 are still address-based Label_. locals.inc holds 150 neutral ZpXX slots and no semantic zero-page aliases (locals2.inc is an empty stub). It builds byte-identical at the PRG level (cmp reconstructed_prg.bin prg.bin).
This header said "Pass 2 complete" from 2ae09f7 (2026-10-18) until the 2026-10-19 correction. Of the five _wip projects carrying that claim, Pinball is the closest to it — most of the named routines below really do exist — but 501 Label_ definitions and all zero-page names remain. See "Pass 2 Status and Map Audit" below.
ROM Facts
| Property | Value |
|---|---|
| Mapper | 0 (NROM) — from the iNES header |
| PRG | 16 KB (header claims map at CPU $C000–$FFFF) |
| CHR | 8 KB |
| Mirroring | Horizontal |
| Battery-backed flag | clear |
| ROM SHA-256 | 451a201c067bbabad8d762c3fdc2a83cb0b93f26ed0c350cf23bbf486f7addb6 |
| PRG SHA-256 | 1d79f41ef62d5045db2c45c9c75766d54c0a84e167d8067bbb6fb90227ac5619 |
Interrupt Vectors (taken from PRG $3FFA–$3FFF)
| Vector | Target | Note |
|---|---|---|
| NMI | $C1ED |
per-frame heartbeat |
| RESET | $C000 |
cold start at $C000 — the usual pattern in this repo |
| IRQ | $C1ED |
identical to the NMI vector — IRQs share the NMI handler |
copilot/ Contents
| File | Purpose |
|---|---|
Pinball (JU).nes |
original ROM image (reference) |
prg.bin / header.bin / chr.bin |
split image, produced by _tools/splitnes.py |
prg.s |
Pass 1: classified code/data split, 4,734 instructions, 180 semantic + 501 address-based Label_ definitions, canonical audit comments |
symbols.inc |
shared NES hardware constants (PPU/APU/controller) |
locals.inc |
150 neutral ZpXX zero-page slots (Pass 2 naming outstanding) |
locals2.inc |
empty leftover stub (not included by prg.s) |
pinball_label_map.tsv / pinball_label_map2.tsv / pinball_full_map.tsv |
Pass 2 draft maps (all three carry the same 210 label rows) — stale, see the audit below |
pinball_zp_map.tsv |
Pass 2 zero-page proposals — not applied (locals.inc is still all ZpXX) |
data_regions.tsv |
Pass 3 data-region draft, 40 named regions — none applied |
linker.cfg |
PRG at $C000, 16 KB, fill = yes |
Makefile |
links reconstructed_prg.bin and cmps it against prg.bin |
reconstructed_prg.bin |
build output from the last verified build |
Header/CHR are not linked: copilot/ keeps the raw header.bin/chr.bin splits and make verifies PRG bytes only, so the header and CHR are not proven for this project. Promotion to the top level adds header.s / chr.s (as e.g. Burger Time (U)), a HEADER/PRG/CHR linker.cfg, and a full-ROM make target.
Build
cd "_wip/Pinball (JU)/copilot"
make # → cmp reconstructed_prg.bin prg.bin → "BYTE-IDENTICAL"
Pass Status
| Pass | Status |
|---|---|
| Pass 1 | Complete — 4,734 instructions, 9,756 bytes as code (59.5%), 6,628 bytes as data, byte accounting exact (16,384) |
| Pass 2 | Substantial, not complete — 180 of 681 label definitions named (26%); 150 zero-page slots still neutral ZpXX; the drafted label map is stale |
| Pass 3 | Drafted, not applied — data_regions.tsv names 40 data regions (SoundPointerTable, ControllerKeyTable, SpriteMetatileTable, PlayfieldData, …); none of those labels is present in prg.s |
| Promotion | Outstanding — add header.s/chr.s + HEADER/PRG/CHR linker.cfg, switch make to a whole-ROM cmp, move the _tools paths |
Pass 2 Status and Map Audit (corrected 2026-10-19)
The "Pass 2 complete" claim overstated the state in the same way as its siblings — "196 semantic labels" is the number of distinct old names in the draft map (pinball_full_map.tsv has 210 label rows covering 196 distinct Label_ names), while prg.s actually names 180 definitions and leaves 501 Label_. "150 zero-page semantic aliases" is the count of neutral ZpXX entries in locals.inc; there are zero semantic zero-page aliases. A handful of the listed routines are also absent (InitSystem, WaitVBlankFrame, BallPhysics, CheckBallInPocket, UpdateBallPosition, UpdateScoreDisplay, UpdateMusic), though unlike its siblings most of the list is real.
Draft-map audit (pinball_full_map.tsv, 210 label rows):
| Outcome | Rows | Meaning |
|---|---|---|
| already applied | 179 | the proposed name already sits at that address |
| name conflict | 13 | a different name already sits there |
| stale address | 17 | the address is not an instruction boundary in the current prg.s |
| unlabelled, unreferenced | 1 | an instruction boundary with no label and no operand referencing it |
| safely applicable | 0 | no row is both insertable and corroborated by control flow |
The map is therefore kept only as provenance, and pinball_zp_map.tsv / data_regions.tsv are unapplied drafts. Completing Pass 2 (and Pass 3) needs maps derived from the committed split.
Still owed: a real power-on flow analysis (RESET/NMI/main-loop walk) in the style of the top-level project OVERVIEW.mds.