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The logger now records every SPU register write and snapshots the register file at the first write after a clear. Export writes a capture-mode SPUDUMP: the sample span the keyed voices use, a state restore packet, a trace begin marker, then the writes grouped by tick. It plays back in spdplayer. Available from the logger window and from Lua as PCSX.SPU.Logger.exportSPD().
rixnobis
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📝 Walkthrough
Merge Risk: 🟡 Moderate · up to
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| Check name | Status | Explanation | Resolution |
|---|---|---|---|
| Docstring Coverage |  |
Docstring coverage is 16.07% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 56 functions across 12 files. (4 skipped:… | Write docstrings for the functions missing them to satisfy the coverage threshold. |
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Check name Status Explanation Title check The title "SPU logger: export captures as SPD" matches the main change. The PR adds SPD export to the SPU logger, including a new spdwriter module, a logger export method, a GUI export button, and Lua… Description check The description explains the change. It covers the new RegWrite kind, the regArea snapshot at the first write after a clear, the Export SPD option in the logger window, the Lua call PCSX.SPU.Logger.ex… Linked Issues check Check skipped because no linked issues were found for this pull request. Out of Scope Changes check Check skipped because no linked issues were found for this pull request. Full details: Title check
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Explanation
The title "SPU logger: export captures as SPD" matches the main change. The PR adds SPD export to the SPU logger, including a new spdwriter module, a logger export method, a GUI export button, and Lua bindings. The title names the primary change from the developer's view and stays short and specific.
Full details: Description check
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Explanation
The description explains the change. It covers the new RegWrite kind, the regArea snapshot at the first write after a clear, the Export SPD option in the logger window, the Lua call PCSX.SPU.Logger.exportSPD(file), the SPUDUMP output format, and the default tick rate. It also lists test results and known limits. This matches the changeset, so the check passes.
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Full details: Docstring Coverage
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Explanation
Docstring coverage is 16.07% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 56 functions across 12 files. (4 skipped: 4 unsupported.)
Resolution
Write docstrings for the functions missing them to satisfy the coverage threshold.
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Actionable comments posted: 2
- 🪄 Fix comments: Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @src/core/spdwriter.cc:
- Around line 192-195: Validate that write cycle stamps are nondecreasing after
the empty-writes guard and before `tickOf` subtracts `origin`; if any stamp
decreases from the preceding write, set an error and return without exporting.
Review comments at @src/core/spulogger.h:
- Line 86: Update the baseline-capture condition in the register-write path to
use m_baselineValid instead of m_seen, so the first register write after clear()
captures the baseline even when earlier DMA events have incremented m_seen.
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📒 Files selected for processing: 16
src/core/pcsxffi.luasrc/core/pcsxlua.ccsrc/core/spdwriter.ccsrc/core/spdwriter.hsrc/core/spulogger.ccsrc/core/spulogger.hsrc/gui/gui.ccsrc/gui/gui.hsrc/gui/widgets/spulogger.ccsrc/gui/widgets/spulogger.hsrc/spu/registers.cctests/core/spdwriter.ccvsprojects/core/core.vcxprojvsprojects/core/core.vcxproj.filtersvsprojects/tests/pcsxrunner/pcsxrunner.vcxprojvsprojects/tests/pcsxrunner/pcsxrunner.vcxproj.filters
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This is now an RFC: it cannot merge before 2026-10-29 22:35 UTC, so anyone who depends on what it changes has a week to comment. See RFC.md. @nicolasnoble, this touches code you depend on. |
…ycle rewinds A DMA logged before the first register write left the baseline uncaptured. A Lua guest call restores the cycle counter, so a later write can carry an earlier stamp; it now lands on the current tick instead of wrapping.
Lets the SPU logger write SPD files. It now logs every register write (new
RegWritekind) and snapshotsregAreaat the first write after a clear. "Export SPD..." in the logger window, orPCSX.SPU.Logger.exportSPD(file)from Lua, writes a capture-mode SPUDUMP: sample data from the keyed voices' start addresses to their end blocks, one restore packet, 0x04, then one write packet per tick. The default tick rate is hblank/16 (983.375 Hz on NTSC).Round trip, -testmode, spdplayer demo with test.spd, 10300 frames: all 60914 source writes (macros expanded) come back in order, and the worst timing error against the player's own polling is 0.76 tick. The export then plays in spdplayer, and re-capturing it gives the same result within 0.95 tick. The order table is there because spdplayer will not start a stream without one.
Limits: a voice that is already playing when capture starts stays silent until it is keyed again, and samples are read from sound RAM at export time. New file writer, so rfc.