v2.6.15 "Warrant" — the claims v2.7.0 will make become checkable, and the instrument pays the oracle back - #494
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…corrects v2.7.0 is the submission email. The contributing page states the bar for AI-assisted code as "a minimum reasonable bar for readability and include some evidence of quality and accuracy testing", and this project has that evidence -- 142 co-simulation gates with a mutation record each -- in a form a reviewer cannot run, because tb/regress.sh says in its own header that it is not a CI gate and cannot be. So v2.6.15 is the release that makes those claims checkable, and it opens on two research findings that change its shape. The first is that the .rbf name this project has shipped since v2.6.7 would distribute NOTHING. Distribution_MiSTer's builder requires a stem whose last nine characters are an underscore plus exactly eight digits and skips any file that does not match; Main_MiSTer's firmware applies a different rule again. That was carried as a style divergence awaiting a decision. It is a hard blocker, and the failure mode is an accepted core that ships nothing with no error raised anywhere. The second is that "needs no SDRAM" is a differentiator. The MiSTer wiki's Cores-that-use-SDRAM table -- which is the live registration database the distribution parses, not documentation -- reads Yes for the NES, and the FAQ gives the NES as its own worked example of why. This core's on-die build does not have that problem, which makes the on-die build the submission artifact rather than a fallback. The plan also records a diagnosis this session has already had to correct. T-ORACLE-001 claims RustyNES never clocks the MMC3 counter on the pre-render line. The corpus refutes it: mmc3_test_2/2-details sub-test 8 is literally "Counter should be clocked 241 times in PPU frame", and RustyNES passes it. The claim came from a PPU state trace, which the ticket's own instrument-traps section says carries no CHR address column and therefore cannot see an A12 rise at all. The plan keeps the workstream and states the refutation condition up front. Maintainer decisions recorded in the plan: ship both .rbf names, hold v2.7.0 until a board exists, and prepare groundwork for all four v2.8.0 tracks.
…duals ADR 0002 has closed this residual over four sub-tests since v2.0.0 beta.3 -- mmc3_test_2/4 #3, mmc3_test_v1/4 #3, mmc3_test_v1/5 #2 and mmc3_test_v1/6 #2 -- through 21+ documented rollbacks, a two-session bounded-effort campaign, and two instrumentation studies. Two of those four do not depend on when the IRQ asserts, so no lever on any axis the ADR searched could ever have moved them. They were mis-filed once and inherited unexamined through every update since. The corpus says so, and it says so twice. mmc3_test and mmc3_test_2 are the same suite twice over, and the second is the revision: mmc3_test_2 ships an "MMC3 Operation" readme section the older corpus lacks entirely -- kevtris's document corrected in three places, the revision A / B split, and the pathological $C001 sequence the author recommends nobody implement. And sub-test 2 of 5-MMC3 carries the IDENTICAL set_test string in both while differing by one instruction: the successor inserts a SECOND clock_counter before the first should_be_set, so its verdict no longer lands on the $C001-pending reload. The assertion was withdrawn by its author. mmc3_test_v1/6-MMC6 rests on the same withdrawn clock, and is additionally the v1 corpus's ALTERNATE-revision ROM -- its header names Crystalis, which mmc3_test_2's readme identifies as revision A, and mmc3_test_2/6-MMC3_alt carries that header verbatim. Measured rather than argued. Making clock_irq's path 1 assert on any $C001 reload landing on zero -- the rule the withdrawn assertion demands -- makes mmc3_test_v1/5 PASS and moves /6 from #2 to #3, and costs BOTH scanline_timing ROMs a regression from sub-test 3 to sub-test 2. Sub-test 2 is "should occur later", so the IRQ starts arriving too early on the one ROM pair that measures when it arrives. Reverted from a pre-edit snapshot; the numbers are in the ADR, because a rejected change with its measurement is a result. The R1/R2 residual is therefore mmc3_test_2/4 #3 and mmc3_test_v1/4 #3 -- one behaviour measured twice -- and the closure over those two stands untouched. This commit also RETRACTS the opening claim of T-ORACLE-001, in place. It says RustyNES never clocks the MMC3 counter on the pre-render line. It does: mmc3_test_2/2-details sub-test 8 is, verbatim, "Counter should be clocked 241 times in PPU frame" -- 240 visible plus pre-render -- and RustyNES passes it, as it has for every release this suite has run. The claim came from --ppu-state-trace, which that ticket's own instrument-traps section says carries no CHR address column and therefore cannot see an A12 rise at all. A trace that cannot see the event was read as evidence the event did not happen. The ticket is corrected in place rather than deleted, because the v2.6.15 plan cites it. Behaviour is unchanged: the mmc3 verdicts are byte-identical to the baseline captured before any edit, and the default gate is 18 passed / 5 ignored. The emulation core is untouched, so AccuracyCoin 141/141 and nestest 0-diff hold by construction.
…the chain
bump_release.py has dropped the previous release from ROADMAP.md's lineage in
two consecutive releases, v2.6.13 and v2.6.14. Both times release_anchor_audit
caught it, both times it was repaired by hand, and v2.6.14 recorded it as a
script defect and deferred the fix on the stated grounds that the gate makes
deferring safe. It does. It also means the operator learns about it from a red
audit AFTER committing, which is the part that stopped being acceptable when it
happened twice.
Reproduced in a throwaway worktree rather than reasoned about, and the CHANGELOG's
description turns out to be wrong in a way that matters. The release does not
vanish: it is RELOCATED. The CHAIN handler inserted the outgoing release after
the first ", on ", which is the correct anchor for the shape the rule was
written for (`..., on **v2.4.3 "Touchstone"** ...`) and the WRONG one for root
ROADMAP.md, whose chain is thirty entries long and ends ", on the v2.0.0
'Timebase' MAJOR cut." So the token swap took v2.6.14 off the head and the
insertion filed it beside the MAJOR cut, thirty entries away:
before: v2.6.14 "Docket" released - ... Built on **v2.6.13 "Slack"** and ...
after: v2.6.15 "Warrant" released - ... Built on **v2.6.13 "Slack"** and ...
... and v2.4.1 "Fabric", on **v2.6.14 "Docket"** and the v2.0.0 cut.
A lineage that skips a release AND names it somewhere nonsensical is worse than
one that merely skips it, because the release IS present and a reader checking
for its absence finds it.
The fix tries "Built on " first, because that names the HEAD of the chain, and
falls back to ", on " only when there is no "Built on " to find. Neither present
is reported, never bumped mechanically.
The second shape is NOT mechanically fixable and now says so. A chain ending
"..., the current release" is a claim about which release is current, and
extending it needs a written summary of the release, which no script has. The
script previously said nothing at all about these and exited 0. It now scans the
six documents release_anchor_audit's chain-tail gate reads, names every chain
still owed prose, and exits 1 -- refusing, rather than forgetting.
The CHAIN rewrite is EXTRACTED from main() into extend_chain(), and that is the
load-bearing part of this commit rather than tidying. The selftest named "chain
names the predecessor once" re-implemented the substitution inline with its own
re.sub, so the one code path that had actually gone wrong twice was the one
nothing executed. A test that reimplements its subject agrees with itself
forever. Nine selftests now call the shipped function, including root
ROADMAP.md's real shape -- a "Built on" chain that ALSO contains a ", on " near
its tail, which is the case that went wrong.
Demonstrated by mutation: reverting extend_chain to the pre-v2.6.15 rule makes
"chain: inserts at the HEAD, not the tail" and "chain: the tail is left alone"
FAIL and the selftest exit 1, while every other check still passes; restored,
exit 0. Verified end to end in a worktree with a stub CHANGELOG section: the
chain head becomes "Built on **v2.6.14 'Docket'** and **v2.6.13 'Slack'**", the
v2.0.0 tail is untouched, and release_anchor_audit goes from three failures to
two. Both remaining are documented manual steps -- the VERSION-PLAN row and the
chain summary -- and the script now announces the second one instead of leaving
it to be discovered.
docs/STATUS.md's lineage carried "sys/ is still empty; there is no .rbf" in the present tense inside a historical entry. The tense is corrected and when it stopped being true is named -- v2.6.6 vendored the framework, v2.6.7 shipped the first bitstream -- rather than the sentence deleted, because what a release did not yet have is part of what it was. to-dos/mister/IMPLEMENTATION_PLAN.md's "Where the core actually is" table is present tense and was eight releases out of date, claiming the APU, the cartridge, the SDRAM controller and sys/ were all "Not started" and the .rbf "Never produced" -- every one of which had shipped. Five rows corrected against the current state, and the table now carries a comment saying why a present-tense table goes stale silently and what to do about it. to-dos/mister/SPRINT_PLAN.md's SDRAM row said "Deferred; needs hardware", which v2.6.13 refuted by writing the controller, a four-way arbiter and a console bridge from the AS4C32M16SB-7 datasheet and accepting them against a behavioural part model. The blocker applied to ACCEPTANCE against the real part, not to construction -- rung 7's own recorded lesson, repeating one row below where it is written. Four more milestone rows re-measured, including M20, which is now BLOCKED on hardware by the maintainer decision taken while planning v2.6.15.
…eviewer asks The naming box is TICKED. v2.6.15 resolved it -- releases/ carries RustyNES_YYYYMMDD.rbf, the GitHub releases carry that plus the version-named copy -- and the entry now records that the cost was worse than it said. It read "has no effect until submission". It has no effect until submission and then it has a total one: Distribution_MiSTer's builder skips a file that yields no datecode, so an accepted core would appear in the Cores table and ship nothing, with no error anywhere. The .srf box is REVISITED rather than ticked, and the revisit corrects a clause of its own recorded reason. That reason said the PLL warning "carries no message ID at all, so there is nothing for an assignment to name". True of MESSAGE_DISABLE, and not true of the mechanism .srf uses: Template_MiSTer ships Template.srf, and it suppresses that very warning with a rule keyed on ID 9999 and the literal text RST, plus four more matching the full sentence. There is something to name; it is simply not a MESSAGE_DISABLE ID. Two upstream sources disagree about whether the file is required at all -- the contributing wiki lists it among the standard files "required by the template", the Template's own Readme calls it "optional file to disable some warnings which are safe to disable" -- and the template ships two of them, so "required by the template" is at least a file the template has. It stays absent, and the reason changes from an impossibility to a COST: an .srf changes the compile's warning set, which tb/check_warnings.py pins, so adopting one means a full Quartus run and a regenerated baseline. The instance paths need adapting too, since Template.srf names emu:emu|pll:pll|pll_0002:pll_inst and this core instantiates its PLL differently -- the same naming difference that cost v2.6.6 -13.901 ns when sys_top.sdc's clock-group glob matched nothing. Scheduled for the next release that rebuilds the bitstream. Checklist gate green at 14 tests, and the list still has unticked boxes, which that gate deliberately requires.
…serting it T-MISTER-SAVE is the only deferred MiSTer item with a user-visible cost: cart.sv has 8 KiB of PRG-RAM and every battery MMC1 or MMC3 game -- Zelda, Final Fantasy, Kirby's Adventure, Crystalis -- loses its saves at power-off. v2.6.12 attempted it and refuted its own attempt on the grounds that "every save route terminates in hps_io, which no gate here instantiates". That is a claim about whether it CAN be instantiated, and nothing had tested it. Running Verilator against the vendored module answers it: without a CONF_STR value it stops at one error, because that parameter has no default; with one supplied it reaches elaboration and produces eleven, nearly all PROCASSWIRE from a single line assigning four wires procedurally -- which Verilator treats as an error and Quartus does not. So it is close, and not free, and that makes the design choice a real one rather than a guess. Instantiating the real module needs -Wno-PROCASSWIRE and siblings, and suppressing errors in vendored framework code to build a testbench is a decision rather than a flag: it weakens the lint gate for everything in that invocation, and sys/ is the one tree this project may not fix at source. Modelling the protocol instead is narrower and needs no suppression, and tests the CORE's side of the contract, which is the side that can be wrong -- against which a model of an interface can agree with the core about a protocol they both misread, the "agreement about an unasked question" failure this project has hit before. Recommended: the model, with the real module as a later cross-check -- the same shape as tb/sdram_model.sv, a behavioural part written from a datasheet whose own documentation states what it cannot see. One enabler serves three tickets: this one, T-MISTER-SAVESTATE, and T-MISTER-CHEATS through ioctl index routing. No code here. The measurement is the deliverable, and it replaces a blocker nobody had tested with a cost somebody can weigh.
…ecome checkable v2.7.0 is the submission email, and the contributing page states the bar for AI-assisted code in one sentence: "Fully AI generated code should meet a minimum reasonable bar for readability and include some evidence of quality and accuracy testing." This project has that evidence -- 142 co-simulation gates with a mutation record apiece -- and tb/regress.sh says in its own header that it is not a CI gate and cannot be. So the strongest thing here was a set of documents describing checks a reader cannot run. This release is about closing that gap, and it opened on a finding carried for eight releases as a matter of style. THE .rbf NAME THIS CORE SHIPPED WOULD HAVE DISTRIBUTED NOTHING. Distribution_MiSTer strips a datecode by taking the stem's last nine characters, requires an underscore plus exactly eight digits, and skips outright any file that yields none. A version-named bitstream is invisible to it: an accepted core would appear in the wiki Cores table and ship nothing, with no error anywhere. A second parser in the firmware has a different rule, and _YYYYMMDD is the only form satisfying both -- so two names, because there are two audiences and only one is a parser. TWO OF THE FOUR R1/R2 RESIDUALS WERE NEVER IRQ-TIMING RESIDUALS. ADR 0002 has closed that set since v2.0.0 through 21+ rollbacks and two instrumentation studies, and two of the four do not depend on when the IRQ asserts at all. mmc3_test and mmc3_test_2 are the same suite twice; sub-test 2 of 5-MMC3 carries the identical set_test string in both and differs by one instruction, the successor declining to assert on the clock this emulator fails. blargg withdrew it. Adopting it anyway was measured: one ROM passes, both scanline_timing ROMs regress from sub-test 3 to 2. Reverted, with the numbers. T-ORACLE-001's OPENING CLAIM IS RETRACTED. It says RustyNES never clocks the MMC3 counter on the pre-render line. It does -- mmc3_test_2/2-details sub-test 8 is verbatim "Counter should be clocked 241 times in PPU frame" and this emulator passes it, as it has every release. The claim came from a trace the ticket's own instrument-traps section says carries no CHR address column and therefore cannot see an A12 rise. A trace that could not see the event was read as evidence the event did not happen -- the second time here an instrument has been mistaken for its subject. THREE CLAIMS BECOME CHECKS. sys/ verbatim rested on one measurement taken eight releases ago and now pins 57 files, catching stray ones as well as changed and missing. The .qsf published two seed tables disagreeing about the pinned seed's margin by 0.155 ns. And bump_release.py, which dropped a release from the chain in two consecutive releases, turns out to RELOCATE it thirty entries away rather than drop it -- reproduced in a worktree, fixed, and its CHAIN rewrite extracted into a function because the selftest covering it re-implemented the substitution inline, so the one path that had gone wrong twice was the one nothing executed. AN ACCURACY GATE SOMEONE ELSE CAN RUN. The nine rung-1 ROMs export from a PINNED oracle commit and compare in CI. A subset, and the job's name says so. ONE FLAGGED CLAIM WAS NOT STALE, and saying so is the discipline: the sibling's ledger changelog was correct, and needed only for its silence to be legible. VERIFIED, NOT ASSERTED, for the parts that can be. The emulation core is unchanged -- the mmc3.rs edits are #[ignore] reasons -- so AccuracyCoin 141/141 (RAM decoder) and nestest 0-diff hold by construction, and the mmc3 verdicts are byte-identical to the baseline captured before any edit. fmt clean; clippy clean on --workspace and on all three frontend feature combos; rustdoc built under -D warnings; the no_std cross-compile builds; 2,261 workspace tests pass with 0 failures; and all five release audits are green. NOT CLAIMED. No hardware has run the bitstream. Rung 6 stays open, confirmed by checking rather than assumed, and by maintainer decision v2.7.0 now WAITS for a board rather than submitting a core nothing has run. docs/bringup.md is written so that when one arrives, rung 6 costs a session.
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This repository does not receive automatic reviews because it has fewer than 10 stars. ⚙️ Run configurationConfiguration used: Path: .coderabbit.yaml Review profile: ASSERTIVE Plan: Team Run ID: 📝 WalkthroughWalkthroughRustyNES v2.6.15 records release metadata, packaging corrections, validation gates, claim corrections, planning updates, and hardened release-chain automation. The emulation core remains unchanged. Changesv2.6.15 release audit
Estimated code review effort: 3 (Moderate) | ~25 minutes Merge Risk: 🟡 Moderate · up to Release automation can falsely pass validation or leave a partial bump, while planning records may direct maintainers toward retracted work. These issues should be corrected before merge. 🚥 Pre-merge checks | ✅ 9✅ Passed checks (9 passed)
✨ Finishing Touches 💡 1🛠️ Fix failing CI checks 💡
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Antigravity review (Gemini via Ultra)Error: timeout waiting for response Automated first-pass review by Earlier review rounds (newest first)Round reviewed at 2026-09-04 15:39 UTCAntigravity review (Gemini via Ultra)This PR releases v2.6.15 "Warrant", updates documentation and Blocking issuesNone found. Suggestions
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Automated first-pass review by Earlier review rounds (newest first)Round reviewed at 2026-09-04 14:06 UTCAntigravity review (Gemini via Ultra)v2.6.15 "Warrant" prepares the release by correcting inaccurate prior claims (like the MMC3 IRQ pre-render timing), updating test ignore metadata, and fortifying the release automation script to enforce written summaries on release chains. Blocking issuesNone found. SuggestionsNone. The changes to the release script are robust and well-documented, and the test/documentation changes accurately reflect the new findings. Nitpicks
Automated first-pass review by Earlier review rounds (newest first)Round reviewed at 2026-09-04 13:53 UTCAntigravity review (Gemini via Ultra)
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Actionable comments posted: 6
🤖 Prompt for all review comments with AI agents
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Inline comments:
In `@docs/adr/0002-irq-timing-coordination.md`:
- Around line 1751-1754: Revise the “never reachable” statement in the
mmc3_test_v1/6 `#2` discussion to limit it to the IRQ-timing levers evaluated by
F5.0, rather than all possible levers. Preserve the distinction that the later
clock_irq path-1 experiment is non-timing and affects /5, while /6 remains
revision-specific.
In `@scripts/release-automation/bump_release.py`:
- Line 675: Move the complete owed validation block for chains_needing_a_summary
from after the write path to immediately after the problems check, before
classification and release-record writes. Ensure unresolved “the current
release” tails cause both dry-run and apply modes to return failure before any
success return or disk modification.
In `@SUPPORT.md`:
- Line 97: Update the release-history wording near the v2.6.15 “Warrant” entry
so “The claims v2.7.0 will make become checkable” is attributed to v2.6.15,
while v2.6.14 “Docket” remains responsible for auditing the submission
checklist. Keep the surrounding release descriptions unchanged.
In `@to-dos/mister/IMPLEMENTATION_PLAN.md`:
- Around line 22-23: Synchronize the MiSTer milestone entries across
IMPLEMENTATION_PLAN.md, SPRINT_PLAN.md, and TASKS.md: mark M6 sprite evaluation
as complete, and update M12 with an explicit v2.6.2 rung-closure status
including the blargg 11-of-11 result while marking cpu_interrupts_v2 as
deferred. Preserve the existing milestone details and re-planning semantics.
In `@to-dos/plans/v2.6.15-warrant-plan.md`:
- Around line 91-95: Update Workstream A in the v2.6.15 warrant plan to reflect
that T-ORACLE-001 was rejected or deferred: remove claims that it changed the
emulation core or improved accuracy, and exclude those claims from the final
deliverable and gate while preserving the documented release and ADR scope.
In `@to-dos/ROADMAP.md`:
- Line 824: Update the owner-facing summary near the retraction to state that
the mechanism and previously claimed fix are not validated, and that the
remaining difference is narrowed only to at least one PPU dot. Ensure the
surrounding status text does not claim the mechanism or fix is known.
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.github/release-notes/v2.6.15.mdAGENTS.mdARCHITECTURE.mdCHANGELOG.mdCargo.tomlOVERVIEW.mdREADME.mdROADMAP.mdSECURITY.mdSUPPORT.mdVERSION-PLAN.mdcrates/rustynes-cosim/Cargo.tomlcrates/rustynes-libretro/rustynes_libretro.infocrates/rustynes-test-harness/tests/mmc3.rsdocs/STATUS.mddocs/adr/0002-irq-timing-coordination.mddocs/mister.mdscripts/release-automation/bump_release.pyto-dos/ROADMAP.mdto-dos/mister/IMPLEMENTATION_PLAN.mdto-dos/mister/SPRINT_PLAN.mdto-dos/mister/contribution-checklist.mdto-dos/plans/v2.6.15-warrant-plan.md
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…e I added FIVE ACCEPTED, ONE PARTLY, and one reviewer diagnosis was wrong while pointing at a real defect anyway. bump_release.py: the refusal did not fail closed on the DRY RUN. The dry-run branch returns 0 before the chains_needing_a_summary check could run, so --apply-less validation -- which is how a release is rehearsed -- reported success over a chain still owed a written summary. The check now runs before either exit path and both modes print the same refusal. Demonstrated in a worktree: the dry run exits 1, names the chain, and writes nothing. The reviewer also proposed moving the check ahead of the WRITES in apply mode. Declined, with the reason recorded at the site: a chain entry names the NEW release, so it cannot be written before the bump that creates it, and refusing to write until the chain is complete would make the chain unwritable. The exit code is the signal; the anchors are what was wanted. The dry-run half of the finding is right and is fixed; the apply half is not. ADR 0002: "never reachable by any lever on any axis this ADR searched" is narrowed. They ARE reachable -- by a lever the ADR never considered because it is not about timing at all, the assertion semantics of clock_irq's $C001-reload path, which this very document then exercises and rejects ON ITS COST. Claiming impossibility while demonstrating the opposite two sections later is the kind of overclaim this release exists to find. T-ORACLE-001's owner-facing summary still said "the mechanism is known, the fix is known" directly above the retraction disproving both. Rewritten. It also now records the DIRECTION, which rules out the second half of the proposed fix independently: registering /IRQ makes the assertion LATER, and this residual is already late, so whatever closes it must move the assertion earlier. The v2.6.15 plan document still listed workstream A as a core change and set an acceptance criterion of "AccuracyCoin verified, not asserted". The core did not change, so it holds by construction and that criterion does not apply. Corrected in place rather than rewritten, with the original wording quoted, because a plan that disagrees with the release it plans is the defect this version is named for. IMPLEMENTATION_PLAN.md's PPU row still said sprite evaluation was in progress. Rung 3 closed at v2.5.8. Missed by my own sweep of that table, which corrected the five rows below it and read past the one above. AND ONE WHERE THE DIAGNOSIS WAS WRONG. The reviewer read SUPPORT.md as attributing "the claims become checkable" to v2.6.14. It does not -- v2.6.15 carries that and v2.6.14 carries the checklist audit, correctly. But the line DOES have a defect the reading found: my earlier pass lowercasing the release lead matched only the em-dash form, so the parenthesised and comma forms kept a capital mid-sentence, in three files. Verified before fixing, per this project's own rule about reviewer claims; fixed the thing that was actually wrong. Anchor audit 13/13 and markdownlint clean after all six.
Neither was planned. Both came out of compiling the bitstream for this release, and both are the shape the version is named for -- a property that was measured once, under conditions nobody wrote down. THE BUILD IS REPRODUCIBLE AND THE REPRODUCIBILITY IS DAY-SCOPED. v2.6.15 changes no RTL and its bitstream came out 56,680 bytes larger with the timing at every corner moved. sys/build_id.tcl is a pre-flow script that rewrites build_id.v with the calendar date on every compile, and rtl/emu.sv puts BUILD_DATE into CONF_STR, so the date is a constant IN THE DESIGN and two builds on different days are different designs. Rebuilding with build_id.v pinned to 260903 reproduces the published artifact exactly -- md5 2c2fa6eb..., 4,040,572 bytes -- while 260904 gives 7346a490... at 4,097,252. Six characters, 56,680 bytes: the .rbf is compressed, so its size tracks placement rather than the device. v2.6.7's reproducibility result stands and its scope was never recorded. It also weakens what v2.6.14 claimed -- that its bitstream was "byte-identical to v2.6.13's ... an identical artifact demonstrates it" -- because that was achieved by RENAMING the file rather than rebuilding, and a rebuild on a different day would not have been identical, through no fault of the RTL. THE BUILD ALSO REWROTE THE PROJECT FILE. One compile appended 218 lines to the 281-line .qsf -- 145 pin assignments, 62 instance assignments, 3 HPS locations and 8 globals, every one already supplied by the vendored sys/ Tcl. The Template Readme warns about exactly this in the second person, and nothing here was watching: git status showed the file modified, which is what it always shows after a release edit, so the pollution was indistinguishable from the intended change until the diff was read. Both fixes live in the sibling -- the filename becomes a reproduction key, and the .qsf checker refuses framework-owned assignments with three more mutations. Recorded here because the CHANGELOG and the release notes are where a user learns what a release did.
…T rescaled The full co-simulation suite was run from a frozen copy after the five cpu_interrupts_v2 verdict gates landed: TOTAL 147 passed, 0 failed, 0 skipped. 142 + 5, and all five report blargg verdict $00. The counts that describe the CURRENT suite move to 147 -- the sibling README, docs/bringup.md, tb/fetch-goldens.sh, and this release's own entries here and in docs/mister.md, which now say 142 at the version open and 147 at its close rather than picking one. TWO FIGURES ARE LEFT AT 142 ON PURPOSE, and scoped instead of rescaled. docs/sdram.md and docs/rung7-mappers.md record that the OFF-DIE build passes 140 of 142 gates. That was measured at v2.6.13 against the suite as it then stood, and the off-die build has not been re-run since. Writing "145 of 147" would be arithmetic dressed as a measurement -- the five new gates have never been run in that configuration, and whether they pass there is unknown. Both sites now name the suite the figure belongs to and say the off-die build has not been re-run. That distinction is the whole of the release's subject applied to its own numbers: a count that describes something measured, and a count that would describe something nobody produced, are different kinds of statement and must not be edited by the same pass. The first attempt to run the suite exited immediately -- the frozen copy lived in the scratchpad, and regress.sh resolves its repo root from its own dirname, so it looked for goldens beside the copy. That trap is already recorded in this project's session notes; re-running from tb/ with a per-run name is the recorded fix, and the script was removed afterwards.
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Acceptance, measured after the last changeFull co-simulation suite, run from a frozen copy of 0 skipped. 142 + the five Two figures are deliberately left at 142. Oracle side: fmt, clippy ( Bitstream: |
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v2.7.0 is the submission email. The contributing page states the bar for AI-assisted code in one sentence — "Fully AI generated code should meet a minimum reasonable bar for readability and include some evidence of quality and accuracy testing." This project has that evidence: 142 co-simulation gates with a mutation record apiece. And
tb/regress.shsays in its own header that it "is NOT a CI gate and cannot be", so the strongest thing here was a set of documents describing checks a reader cannot run.This release closes that gap, and it opened on a finding carried for eight releases as a matter of style.
The
.rbfname would have distributed nothingDistribution_MiSTer's builder strips a datecode by taking the stem's last nine characters, requires_plus exactly eight digits, andcontinues — skips outright — any file that yields none.RustyNES_MiSTer-v2.6.13.rbfyields none. An accepted core would appear in the wiki's Cores table and ship nothing, with no error raised anywhere. A second parser in the firmware (get_display_name()→ first literal_20) has a different rule again, and_YYYYMMDDis the only form satisfying both — so two names, because there are two audiences and only one is a parser. The 2026-08-30 decision is extended, not reversed.Two of the four R1/R2 residuals were never IRQ-timing residuals
ADR 0002 has closed that set since v2.0.0 beta.3, through 21+ documented rollbacks and two instrumentation studies. Two of the four do not depend on when the IRQ asserts, so no lever on any axis that campaign searched could have moved them.
mmc3_testandmmc3_test_2are the same suite twice over. Sub-test 2 of5-MMC3carries the identicalset_teststring in both while differing by one instruction — the successor inserts a secondclock_counterbefore the first assertion, declining to assert on the$C001-pending reload this emulator fails. blargg withdrew it. Adopting it anyway was measured:mmc3_test_v1/5passes and bothscanline_timingROMs regress from sub-test 3 to sub-test 2, which is "should occur later" — the IRQ starts arriving too early on the one ROM pair that measures when it arrives. Reverted, with the numbers in ADR 0002's decision update.T-ORACLE-001's opening claim is retractedIt says RustyNES never clocks the MMC3 counter on the pre-render line. It does.
mmc3_test_2/2-detailssub-test 8 is, verbatim, "Counter should be clocked 241 times in PPU frame" — 240 visible plus pre-render — and RustyNES passes it, as it has every release. The claim came from--ppu-state-trace, which that ticket's own instrument traps section says carries no CHR address column and therefore cannot see an A12 rise at all. A trace that could not see the event was read as evidence the event did not happen. Corrected in place, since the release plan cites it.Three claims become checks
sys/verbatim rested on one measurement taken at v2.6.6 plus a manual procedure nothing ran — eight releases. Now 57 files pinned, catching changed, missing and stray; the third is why the directory is enumerated rather than the manifest merely walked, andsys/README.mdandsys/.gitkeepboth lived there through v2.6.5. Re-verified against upstream in the same pass:Template_MiSTer's HEAD is the pin and a clone reports 0 differences..qsfpublished two seed tables, disagreeing about the pinned seed's margin by 0.155 ns, one quoting a number the current RTL cannot reproduce.bump_release.pyrelocates rather than drops. Reproduced in a throwaway worktree: the outgoing release is filed thirty entries away beside the v2.0.0 MAJOR cut, because the insertion anchored on the first", on "and that chain ends with one. The CHAIN rewrite is extracted into a function — the selftest covering it re-implemented the substitution inline, so the one path that had gone wrong twice was the one nothing executed.An accuracy gate someone else can run
docs/golden-fetching.mdspecified it and carriedStatus: NOT BUILT. The nine opcode-group ROMs now export from a pinned oracle commit and compare in CI. A subset, and the job's name says so. Measured before built: the exporter builds in 7 s, the nine windows total 4,624 cycles.cpu_interrupts_v2on the DUT — the first independent interrupt oracledocs/rung5-accuracycoin.mdstates the hole in its own words: "Rung 4 had blargg as an independent check and it found six defects no self-written gate could see; rung 5 has no equivalent." Five single-purpose ROMs, mapper 0, all five passing.5-branch_delays_irqadjudicates the exact behaviour v2.6.7 changed in this emulator from documentation reasoning alone.One flagged claim that was not stale
Eight expired claims were corrected across both repositories. A ninth was flagged and turned out correct: the sibling's ledger changelog was called nine releases stale, inferred from entry numbers, and
git logshows its last commit is rung 5's own closure. Re-measure before correcting, including when the thing being corrected is an absence.Verification
The emulation core is unchanged — the
mmc3.rsedits are#[ignore]reasons — so AccuracyCoin 141/141 (RAM decoder) and nestest 0-diff hold by construction, and the mmc3 verdicts are byte-identical to the baseline captured before any edit.cargo fmt --all --checkcargo clippy --workspace --all-targets -- -D warningsRUSTDOCFLAGS="-D warnings" cargo docno_stdcross-compile (thumbv7em-none-eabihf)cargo test --workspacemmc3(incl. ignored)Not claimed
No hardware has run the bitstream. A booting core, a synced display, audible audio and a working controller are not claimed. Rung 6 stays open, confirmed by checking the USB bus, serial devices, removable block devices and mounts rather than assumed — and by maintainer decision taken while planning this release, v2.7.0 now waits for a board.
docs/bringup.mdin the sibling is written so that when one arrives, rung 6 costs a session.Four properties remain unverified by construction: the palette, the video timing constants, the audio's absolute level, and band-limiting.
Sibling PR: to follow, once its bitstream and the five verdict gates finish.
Summary by CodeRabbit
New Features
Bug Fixes
Documentation