tmerritt/disasm
1
0 Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
62866563ba564bbf1a83a1b3a55e95da78fc3124
disasm/MUSCLE (U)/copilot/routine_names.tsv
T
tmerritt 837007843d MUSCLE (U): decode the bytecode VM layer (Pass 3b) 
The 42 token programs were the last undecoded part of MUSCLE. Each now carries a
token-by-token listing above its unchanged .byte data, generated by
_tools/bytecode_dis.py and wired into the build as 'make pass3'.

Encoding, derived from RunBytecodeInterpreter ($9AE8) and BytecodeHandlerTable
($9237): the dispatch is one byte per element. A byte in $C8-$EF selects one of
the 40 handler-table entries; every other byte takes the literal path at $9B08
and is pushed onto the operand list at $0033[Y], accumulated into $003C[Y].

The one exception is four opcodes whose handler's first instructions are
'lda ($1A),Y / iny', so they consume the following byte inline:
  $CB LOOP_BEGIN  -> $7C,X count + $7E,X body address
  $D1 SET_RATE    -> $43,X
  $D7 DRAW_SPRITE -> count for the $A660 blit
  $E1 SET_WAIT    -> $7A,X
$CB and $C9 are the loop pair: LOOP_END decrements $7C,X and, if non-zero,
reloads Y from $7E,X, rewinding the interpreter to the top of the body.

Decoded 377 opcodes and 937 literal operands across 42 programs; all 40 defined
opcodes are used, so the opcode set is complete.

Two standalone programs contain no byte in $C8-$EF at all, so every byte takes
the literal path - the listing states that rather than implying code.

Each mnemonic was read off its handler's own straight-line path up to its first
'jmp $9AE8' / 'jmp $9B25'. Handlers that only tail-call a game routine are named
for the routine rather than guessed at, since the semantics live in the callee.

bytecode_dis.py inserts comment lines only; .byte data is copied through
verbatim. Verified: all 16,384 PRG bytes still emitted exactly once, every value
equal to the ROM, zero audit mismatches, and 'make regen' (pass1 -> pass2 ->
pass3) reproduces prg.s byte-for-byte. Byte-identical ROM verified.

MUSCLE (U): trace the stage payload with py65 (Pass 3c)

The stage payload at $B0FB-$BEBF could not be decoded statically, and the
trace confirms why: across all 16 KB of code there is exactly ONE operand in
that range - $BD28, the literal pointer table itself. The real address is
formed at runtime by 'adc $BD28,X', where A is a value carried in the
bytecode stream, so the readers are indexed by a runtime value and cannot be
enumerated by searching the code.

FCEUX cannot observe this either: its Lua API offers registerexec /
registerexecute / registerrun / registerwrite but no memory-read hook, and with
no static list of readers there is nothing to hook.

_tools/trace_stage_payload.py therefore uses py65's
ObservableMemory.subscribe_to_read, which fires on every read of a range and
can report PC from inside the hook. py65 is only a 6502 core, so the tracer
adds the minimum hardware to boot the game: a scanline counter off
processorCycles, $2002 vblank at scanline 241 cleared on read, NMI at the same
scanline, $4014 OAM DMA, and the $2005/$2006/$2007 latches. Without NMI the
game never leaves $80E0 (lda $0321 / beq), because $0321 is the flag the
bytecode VM raises.

Results over 300 frames (26.8M cycles, 4,071 NMIs): 2,548 payload reads from
44 distinct reader PCs, touching 914 of 3,421 bytes.

Findings:
- The hottest reader is $AC82, the compressed-VRAM RLE decoder: 1,046 of its
  1,128 reads advance by exactly +1, comparing each byte against $C0.
- $9B50 is a backward copy (lda ($12),Y / sta ($10),Y / dey), stepping -1.
- 107 distinct 8-byte blocks had all eight bytes read, with spacing dominated
  by $08 - a dense 8-byte record array - plus a sparser group on a $D0 stride
  ($BBE0, $BCB0, $BD80, $BE50).
- Readers use three disciplines: forward sequential, backward sequential, and
  variable stride consistent with a fixed-offset field walk.

py65 is deliberately NOT a build dependency: the tool documents unpacking the
wheel on demand. 'make regen' is unaffected. Byte-identical ROM verified.

MUSCLE (U): fix the NMI/controller bugs in the payload tracer; correct the Pass 3c model

The Pass 3c tracer had two bugs that were suppressing all progress, both now
fixed in _tools/trace_stage_payload.py (previously scratch, now durable):

* NMI re-armed by $2002 reads. The vblank flag must be cleared once per frame,
  not on every read of $2002 -- the main loop polls $2002 and spins on the
  bytecode VM flag at $8226, so each poll cleared bit 7 and re-armed NMI inside
  the same scanline. That gave 40,900 NMIs across 3,000 frames and corrupted all
  game state. A per-frame nmi_fired flag restores exactly one NMI per frame
  (verified: 600 frames -> 600 NMIs).

* Input went to $4017. The poll routine at $AA69 is `lda $4016,X` with X=1 and
  only compares bits 0-1, so driving $4017 consumed nothing -- all masks tested
  gave byte-identical traces. The game consumes joy1 on $4016 and needs a real
  latch/shift register. With it, START matters: 47.7% coverage vs 39.0%.
  Match entry is two discrete START presses (title -> char select -> match).

Coverage 26.3% -> 40.9%. Both bugs and the port subtlety are documented in the
tool header so they are not re-derived.

Corrects the Pass 3c conclusion. $B0FB-$BEBF is NOT per-stage level data:

* $BD28 is an 8-entry per-ACTOR entry-offset table, not a stage table.
  $A063 `adc $BD28,X` with X = ActorIndex ($1E), plus #$32 at $A071 when
  PlayerActiveFlag ($78,X) is set. Observed actors are $00-$04.
  Forcing all 8 actor indices adds zero new bytes.

* The sound engine reads the same window: $B03C `lda (SoundReadPointerLo),Y`
  with `cmp #$F0 / sbc #$F0 / tay / lda $B0E3,y` is note decoding, which is
  where the $FF/$F0 high-nibble terminators come from.

So the window is a shared pool -- per-actor bytecode, compressed-VRAM RLE, and
music note streams -- and stage cycling cannot raise coverage past ~40%. The
remaining 2,161 B need other music tracks and scripted match play, not taps.

Also corrects two stale claims: $0326 is not a level byte (never leaves $00 even
in a confirmed match), and $0320 is a boolean, not a screen-state machine.

Build unaffected: byte-identical, and `make regen` still reproduces prg.s
byte-for-byte.

MUSCLE (U): promote to the top-level inventory as #16

git mv _wip/MUSCLE (U) -> MUSCLE (U). The relative symlink
copilot/rom.nes -> ../M.U.S.C.L.E. (U).nes survives the move untouched.

* copilot/Makefile: tool paths ../../../_tools/ -> ../../_tools/ for NESDIS,
  PASS2 and BYTECODE. `make` prints the byte-identity message and `make regen`
  still reproduces prg.s byte-for-byte, both verified after the move.
* MUSCLE (U)/OVERVIEW.md: ROM/build paths updated; the "promote to the numbered
  inventory" item is now closed.
* Root OVERVIEW.md: added as #16, removed from the _wip skeleton table
  (20 -> 19), added a ### 16 detail section, and its vector/mapping notes moved
  out of the skeleton section.

All 16 top-level projects verified byte-identical.

Add Pass 1 verification tool; teach nesdis.py the undocumented opcodes

_tools/verify_pass1.py verifies Pass 1 across every top-level project in two
independent directions:

  * Faithful  - does the source still rebuild its ROM byte-identical?
  * Complete  - does the committed source claim as much code as a fresh trace
                can actually reach?

The second is the one that catches real problems. A project can reproduce all
16,384 bytes perfectly while calling 95% of them data, because the tracer gave
up early. Instruction *counts* are compared rather than bytes, so the check is
independent of comment style (which is not uniform across the repo).

Result: all 16 projects are faithful, and Joypad Test Cartridge is the only
truncated Pass 1 -- 282 committed instructions against 1,773 reachable.

nesdis.py gains three fixes needed to make that verdict trustworthy:

* --undocumented (default OFF) decodes the 105 undocumented NMOS opcodes.
  They are used as NOP padding and as real RMW ops, and a tracer that halts on
  them loses most of the code: Joypad goes 580 -> 3,846 code bytes. Default off
  so MUSCLE's `make regen` still reproduces prg.s byte-for-byte.

* Undocumented opcodes are emitted as explicit `.byte` with the disassembly in
  the comment. ca65 V2.19 implements none of them, so they cannot be written as
  mnemonics; keeping them in the code region preserves the code/data split and
  the audit trail. Official 0xEA NOP still encodes normally.

* Two latent bugs, both now reachable:
  - RESET and IRQ are commonly the same address, and the semantic-name map was
    overwriting, renaming the primary entry point to `IrqHandler`. Now
    setdefault, in RESET/NMI/IRQ priority order.
  - render() stamped every branch operand as Label_XXXX and never reconciled it
    with the semantic name map, so a branch into a named routine emitted a label
    that was never defined and the file would not assemble.

Joypad Test Cartridge (U): redo Pass 1, complete Pass 2; merge _wip into the inventory

Pass 1 (redone). The committed split claimed 282 instructions / 580 bytes (3.5%).
The tracer halted at $C09E on `DCP $3C20` ($CF) -- an undocumented opcode used as
ordinary code -- and filed 3,256 bytes of real code as `.byte` data.

Now 1,773 instructions / 3,836 bytes (23.4%), a 6.6x increase. Verified against a
fresh trace: 1,769 emitted instructions + 4 undocumented opcodes written as
explicit bytes = 1,773, an exact match. Byte accounting stays exact at
3,836 + 12,548 = 16,384.

ca65 V2.19 implements none of the undocumented opcodes, so the 4 affected
instructions (DCP $3C20, LAX $20D4, NOP $C1,X, RRA ($D0),X) are emitted as
explicit `.byte` with the disassembly in the comment. They stay in the code
region, so the split and the audit trail are both preserved.

Pass 2 (complete). All 202 labels renamed; zero `Label_Cxxxx` remaining. Renames
are keyed by address and verified to have bound to the intended address, not just
to some address. 202 routine headers, every one describing real behaviour -- no
"undetermined in Pass 1" boilerplate left. `locals.inc` carries 99 aliases, the
proven semantic ones sitting beside the generated `ZpXX` entries per the alias
pattern in AGENTS.md.

Two naming errors in the previous draft are corrected: $55 is MarkerValue (it
holds $70/$88/$A0 and is compared against them), not a "P1 Down timer"; and the
twelve MarkerVar variables are named by position because which player/button
each belongs to is not established.

Pass 3 is now outstanding, and the old Pass 3 was wrong: it described
$C09E-$C173 and $C17F-$CCF6 as data, and both are code. After the redo there is
exactly one data region, $CF06-$FFFF, confirmed by orphan scan.

Documentation.

The root inventory now lists all 36 projects in one table -- the 20 `_wip/`
projects are rows 17-36 rather than a second table that could drift. That second
table had wrong mirroring for 12 of them (Duck Hunt, Golf, Hogan's Alley, Ice
Climber, DK Jr Math, Lode Runner, Lunar Pool, Mario Bros, Millipede, Pyramid,
Raid [a2], Urban Champion were all recorded H when they are V, and vice versa);
every value is now read from the ROM rather than trusted.

Build status is split into two honest tiers: rows 1-16 are BYTE-IDENTICAL and
compare the whole ROM, rows 17-36 are PRG-IDENTICAL because their Makefiles only
run `cmp reconstructed_prg.bin prg.bin`. Header and CHR are not proven for those.
All 36 build cleanly; the WIP count was also corrected from 19 to 20.

`_tools/verify_pass1.py` checks all 36 and reports none truncated.

Mario Bros (JU): Pass 1 disassembly, 14.6% -> 72.2% code

The skeleton prg.s was a 12-line .incbin of the whole PRG. It is now a real
disassembly: 5,735 instructions, 11,829 code bytes (72.2%), 937 labels and
routine headers, byte accounting exact at 11,800 + 4,584 = 16,384, and
BYTE-IDENTICAL against prg.bin.

Coverage came from four steps, not one:

  vectors + direct jsr/jmp/branch, official opcodes   1,185 instr   14.6%
  --undocumented (105 extra NMOS opcodes)            1,210 instr   14.9%
  --auto-seed (61 table-referenced entries)          4,187 instr   51.1%
  --extra-seed 0xC0B6,0xC5A3                         5,735 instr   72.2%

Almost everything sits behind computed dispatch. Three mechanisms are now
documented in the project OVERVIEW:

* $CD9E is a stack-based indirect call: it pops the table address with `pla`,
  indexes it by A*2 with `lda ($14),y`, then `jmp ($0014)`. Because the pointer
  arrives on the stack it cannot be followed statically from the dispatcher.
* $C5A3 is a 20-entry table of `JSR` thunks ending in `rts`. Probing it linearly
  gives twenty valid targets, and seeding it recovers most of the last 21%.
* $C0B6 is the NMI phase dispatcher, reachable only by computed dispatch.

Two overlapping-decode bugs in _tools/nesdis.py had to be fixed first:

* Control-flow targets must win over fall-through. `bne` at $C4BA targets $C528,
  but the fall-through path had decoded $C527 as a 2-byte `NOP #$A5` whose
  operand swallowed $C528. No assembler branches into the middle of an
  instruction, so the spanning decode is now dropped in favour of the target;
  its bytes fall out as data, leaving byte accounting unchanged.
* Branch targets inside a surviving instruction must be pruned from the target
  set. Otherwise emit_code's linear walk consumes those bytes as an operand, so
  the label is referenced but never defined and the file does not assemble at
  all -- `Error: Symbol 'Label_C528' is undefined`.

Neither change disturbs an existing pipeline: MUSCLE's `make regen` still
reproduces prg.s byte-for-byte, Joypad Test Cartridge still builds byte-identical,
and _tools/verify_pass1.py reports all 16 top-level projects faithful with none
truncated.

Mario Bros (JU): Pass 2, partial -- make the call graph readable

Two mechanical wins, in order of value:

* **477 jsr/jmp operands rewritten from raw $XXXX to labels.** The tracer emits
  call and jump targets as hex, so the call graph was unreadable -- the most
  called routine appeared as `jsr $CCA0` 14 times over. Every one of those sites
  already had a label at its target address, so the substitution is purely
  mechanical and byte-preserving. Zero raw hex call operands remain.

* **13 landmark routines named** from verified instruction evidence:
  WaitVblank1, ClearRamPageLoop, NmiPhaseDispatch ($C0B6), JsrThunkTable
  ($C5A3), DispatchViaStackPointer ($CD9E), AdvanceDispatchPointer ($CDB4),
  PushTablePointerDispatch ($CCA0), DispatchTableF393 ($CAB9),
  InitSpritesOffscreen ($DFC4), AdjustDecimalColumns ($D15A),
  TestRamFlagPair0500 ($D328), NextIndex ($CE84).

**922 labels remain unnamed, and that is recorded as the honest state** rather
than papered over. They sit 15-25 per page across $CC00-$CFFF, which is just
the game logic: naming them means reading ~5,700 instructions across 935
routines. Guessing from the call graph and the NES convention would be exactly
the guessy rewrite PROMPTS.md rules out.

The productive next step is more reach, not more naming. The 4,555 unreached
bytes are where most unnamed routines live, and they are gated behind the
stack-pointer dispatch at $CD9E, whose pushed table addresses are only known in
the callers' frames.

Still BYTE-IDENTICAL; all 16 top-level projects remain faithful.

Record audit-comment work for Excitebike and Pac-Man as a TODO

Both projects are hand-written sources with semantic labels but no
byte-identity audit comment, so a source line cannot be mapped back to exact
ROM bytes without re-assembling. Every other project in the repo carries one.

Documented what was tried and why it was dropped rather than left implicit.
Addresses from 'ca65 -l' work fine -- the listing offset indexes prg.bin
directly -- but the listing carries no source line numbers, so entries cannot
be keyed back to source lines. Byte values also have to come from prg.bin
rather than the listing, since ca65 prints 'rr rr' for relocatable words.

No tool was committed, because the one written does not work. Both projects
verified still byte-identical; no source file was changed.

Add TODO.md handoff; bring AGENTS.md back in line with the repo

AGENTS.md had drifted on facts that are now wrong, not just incomplete:

* "Eleven disassemblies" -> 36 (16 top-level, 20 in _wip). The index it points
  at had the same stale count.
* The audit-comment convention was stated as `; PRG:$xxxx AA BB`, but the
  dominant spelling is `; CPU:$xxxx PRG:xxxx  AA BB` and five other variants are
  in use, with Excitebike and Pac-Man carrying none at all. Now stated accurately
  as "preserve whatever spelling a file uses", with the gap pointed at.
* `_tools/` was described as holding splitnes.py and chr2gif.py. It holds six
  tools now, including the Pass 1 tracer and the verifier.
* ROM filenames "contain spaces" -> spaces *and parentheses*, which is also what
  makes FCEUX hang headless.

Added, because each one costs real time if rediscovered:

* The two build tiers. The 20 _wip projects only `cmp reconstructed_prg.bin
  prg.bin`, so their header and CHR are NOT proven -- calling them
  byte-identical to the ROM is wrong.
* A promotion procedure, since that has now been done twice.
* A tracer/toolchain gotchas section: undocumented opcodes truncating traces
  (and ca65 being unable to encode them), vectors living at the end of the PRG
  rather than in the iNES header, the RESET==IRQ name collision, control-flow
  targets beating fall-through, the branch-target pruning that stops a file
  failing to assemble, NMI firing once per frame rather than per $2002 read,
  joy1 being $4016, and ca65 listings carrying no source line numbers.

TODO.md is the handoff document: open work per project with enough detail to
resume, the residue counts, and the reasoning behind each abandoned approach so
it is not silently retried.

Nothing rebuilt or changed; all projects still verify.

Joypad Test Cartridge (U): Pass 3 complete — data region named and VRAM command stream decoded

The monolithic `.byte $CF06-$FFFF` block (12,538 bytes) has been broken into 20 named sub-blocks:

VRAM command streams ($CF06-$D4AD): three command streams separated by $FF terminators, read by VramWriteLoop via RetAddrUpdate. Opcode set decoded: $4C = jump, $60 = deferred PPUCTRL, bit-7-clear = VRAM write (PPU addr + data, bit 6 of data = long/short selector).

OAM tables ($D4E3-$D6A3): 12 groups of 32-byte tables (8 entries of Y/tile/attr/X), read by CopyOamFromTable ($D4E3) and CopyOamFromTable70 ($D5C4).

Sprite templates ($D6A5-$D6E4): sprite template read by CopySpriteTemplateTable ($D6A5) and button OAM template read by PrepareButtonOam ($D6C5).

Padding: $FF ROM padding ($D6E5-$FFF9) and vectors ($FFFA-$FFFF).

OVERVIEW.md updated: section 8 documents all 20 sub-blocks with the VRAM command stream format and OAM table structure; section 11 marks Pass 3 complete with remaining work (MarkerVar player/button mapping, HandleButtonPress sprite order).

Build verified byte-identical.

Root OVERVIEW.md: mark Joypad Pass 3 complete

Update summary table (row 14: Pass Pass 2 → Pass 3 complete), detail section
(section 14: Pass 2/3 → Pass 3 complete with VRAM command stream decoded),
methodology note table (Pass 2 complete → Pass 3 complete), and notable
observations (Joypad at Pass 2/3 → Pass 3 complete).

Joypad Test Cartridge is now fully Pass 3 complete: all 20 data sub-blocks
named, VRAM command stream opcode set decoded, OAM table structure documented.

TODO.md: mark Joycad Test Cartridge Pass 3 complete

Mario Bros (JU): Pass 2 substantial — 252 subroutine entry points named

All 252 jsr/jmp targets resolved from raw $XXXX to labels:
- 90 semantic names: audio/sound routines ($F8xx-$F9xx: AudioPulse1CtrlSetup,
  WritePulse2Freq, ProcessTriangleChannel, SetupAudioChannel, etc.), gameplay
  helpers (CheckZpB3Return, CheckRangeReturn012, ToggleZpFC_Bit3, etc.)
- 165 address-based names (SubCxxxx) for the remainder
- Zero raw $XXXX call operands remain

667 Label_Cxxxx internal branch targets remain — these are local control-flow
destinations within routines, not subroutine entry points, and do not need
semantic names for the call graph to be readable.

Build verified BYTE-IDENTICAL. Root OVERVIEW.md updated (row 26: Pass 0 skeleton
→ Pass 1 complete, Pass 2 substantial). TODO.md updated.

Lunar Pool (U): Pass 1 complete, 57.8% code; nesdis.py opcode/emitter fixes

The skeleton prg.s was a 12-line .incbin of the whole PRG. It is now a real
disassembly: 4,586 instructions, 9,475 code bytes (57.8%), 6,909 data bytes,
byte accounting exact at 9,403 + 6,981 = 16,384, BYTE-IDENTICAL.

Coverage: vectors + direct jsr/jmp/branch reached 1,259 instructions (15.6%).
--undocumented took it to 4,572 (57.6%), and --auto-seed (48 table-referenced
entries) plus --extra-seed 0xE80C (the non-$C000 RESET vector) took it to
4,586 (57.8%).

Three undocumented opcodes were missing from nesdis.py and are added:
* $72 RRA abs (the RRA family was missing the $72 absolute form)
* $42 NOP #imm (the NOP-immediate family was missing $42)
* $FA NOP abs,X (the NOP-abs,X family was missing $FA)

One emitter fix: ca65 silently rewrites an operand whose high byte is $00 in
the shorter zero-page form -- `sta $00FF,x` assembles as `sta $FF,x` ($95
instead of $9D). render() now emits the `a:` prefix for ABS/ABSX/ABSY/IND
operands with a high byte of $00, forcing the absolute form so the emitted
bytes match the ROM. operand_value() strips the prefix when parsing.

These changes are general and verified not to disturb existing pipelines:
MUSCLE's `make regen` still reproduces prg.s byte-for-byte.

Remaining gaps: 6,909 bytes (42.2%) still data, gated behind jmp ($7961) at
three sites (RAM-pointer dispatch; the blocks after them hold the screen text
"strings" "game over" and "hi`score__") and stack-based dispatch at $CBDC --
the same pattern as Mario Bros (JU)'s $CD9E.

TODO.md: add Lunar Pool as an open item

Adds comments for all lines to Pacman and Excitebike
Moves Pacman 'locals' and 'symbols' definitions into the right places
2026-10-17 17:36:28 -04:00

6.1 KiB
Raw Blame History

10x8000Reset
20x800EWaitForFirstPpuWarmup
30x8019WaitForSecondPpuWarmup
40x802CInitializeGameState
50x8052UpdateNametableFromStream
60x80ACStartStageSequence
70x8132UpdateFadeFlashSprites
80x8164InitializeRound
90x8226MainGameLoop
100x82ACDivideBy20
110x82E1SilenceSoundChannels1And3
120x82EDSilenceSoundChannel3
130x82FAStartIntroMusic
140x82FFStartMusicSequence
150x832AUpdateHudTallyTiles
160x8353UpdateScoreTallyDigits
170x8372WriteScoreTallyDigits
180x8399LoadOamShadowFromTable
190x83A7UpdateActorPositions
200x845CUpdateRoundTimers
210x856CPlayRoundChangeMusic
220x8596UpdateScrollTarget
230x8598UpdateScrollTargetAlt
240x8639BeginVblankFrame
250x8644ForceRenderingOff
260x8653SetRenderingOffAndSignalVblank
270x865DUpdateRoundLogic
280x86CBNmiHandler
290x8751FinishNmiUpdates
300x8759FinishNmiRegisters
310x8764IrqHandler
320x8765SetSoundSequenceChannel1
330x877CRunGameStateDispatcher
340x87BFUpdateTimersAlt
350x87D1PollControllerStart
360x87F2UpdateFlashCounter
370x8837PlayDeathSequence
380x8848PollControllerBits
390x885BPollControllerAndAdvance
400x886CPollControllerBitsAlt
410x887CSignalVblankComplete
420x8882PollControllerAndCheckRound
430x88A4BuildOamList
440x88B0EmitOamEntry
450x88EBEmitOamBlankEntry
460x88F9EmitOamFromTable
470x88FFEmitOamAtOffset
480x8936FindFreeOamSlot
490x8986CompactOamList
500x89CEReadControllerAndInit
510x8A28UpdateStageActors
520x8A5ESpawnStageActors
530x8AE8UpdateAttributeTable
540x8B07ClearScrollLatch
550x8B20WriteNametableTile
560x8B33ClearAttributeRegion
570x8B92RenderHudDigits
580x8BEFRenderHudDigitDescriptor
590x8BF8SetRenderingOn
600x8C05AdvanceAnimationSlot
610x8C0EQueueVramTransfer
620x8C11QueueVramTransferAlt
630x8C65ExecuteVramTransfer
640x8CB8QueueVramDescriptor
650x934BUpdateActorX
660x9371UpdateActorTile
670x9374UpdateActorTileAlt
680x94B1TestPlayerFacing
690x94C7SelectActorSlot
700x94C8SelectActorSlotAlt
710x94CFClearActorPosition
720x94D7ClearActorFields
730x94FESetActorFlag
740x9585UpdateActorState
750x95AEComputeActorLeftEdge
760x95D2ComputeActorRightEdge
770x95D9CompareActorToLimit
780x9653SetActorTileFromPalette
790x9667StoreActorTile
800x969EAdvanceActorCounter
810x96AASetActorTileValue
820x96C8TestActorCollisionFlag
830x96F7ComputeActorLeftEdgeAlt
840x9722ComputeActorRightEdgeAlt
850x9729TestActorRange
860x9732MoveActorByStep
870x97BCSetActorAnimation63
880x97C0SetActorAnimation62
890x97C4SetActorAnimation61
900x97D5UpdateActorAnimation
910x97FCTestAnimationSlot
920x982AComputeActorLeftEdgeAt
930x9858ComputeActorRightEdgeAt
940x985FTestActorValue
950x98E6ComputeActorLeftEdgeAlt2
960x9911UpdateActorTileFromIndex
970x9918UpdateActorTileFromIndexAlt
980x99A3SetSoundSequenceChannel2
990x99E2LookupActorTileId
1000x99E4LookupActorTileIdAlt
1010x9A24StoreActorCoordinates
1020x9A2EStoreActorCoordinatesAlt
1030x9A3FFlipActorFacing
1040x9A4ESpawnActorPair
1050x9A6BSpawnActorPairAlt
1060x9AE8RunBytecodeInterpreter
1070x9B05DispatchThroughPointer
1080x9B25RunBytecodeProgram
1090x9CBBResetBytecodeState
1100x9D4ECopyActorCoordinates
1110x9DD6SetActorBounds
1120x9DE6LoadActorTileIndex
1130x9E6EUpdateActorFacing
1140x9E7FQueueNametableWrite
1150x9F14FlushNametableWrite
1160x9F4BUpdateActorMovement
1170x9F54MoveActorByOpcode
1180x9FDFAddToNametableValue
1190xA002SubtractFromNametableValue
1200xA01DProcessBytecodeOpcode
1210xA085ComputeBytecodeOffset
1220xA0A5ResetBytecodeAccumulator
1230xA0C6ResetBytecodeAccumulatorAlt
1240xA0F4AdvanceBytecodeProgram
1250xA0FBResetBytecodeStateAlt
1260xA12EComputeActorTileRow
1270xA15DResetBytecodePointers
1280xA17FRunActorScript
1290xA250LoadActorConfigByte
1300xA253ComputeActorConfigOffset
1310xA25FCopyConfigBytes
1320xA270LoadActorConfigRecord
1330xA298CompareConfigValue
1340xA2C8ReturnFromConfigLoad
1350xA2C9LoadActorConfigFields
1360xA316StoreActorPaletteByte
1370xA32CStoreActorControlByte
1380xA338ReadActorConfigByte
1390xA435CompareActorConfigValue
1400xA46FStoreActorConfigResult
1410xA482LoadActorConfigAlt
1420xA49FStoreActorConfigResultAlt
1430xA4AALoadActorFacingFlag
1440xA4C7LoadActorConfigBlock
1450xA4DFTestSoundChannelState
1460xA4F2SetSoundSequenceChannel2Alt
1470xA4FFFlipObjectIndex
1480xA508LookupObjectIndex
1490xA512UpdateObjectSlots
1500xA51BAdvanceObjectSlot
1510xA5DDWriteNametableBytes
1520xA660SetSoundSequenceChannel4
1530xA68EUpdateObjectList
1540xA695UpdateObjectListEntry
1550xA6F8UpdateObjectCollisions
1560xA79FCheckObjectScroll
1570xA82FClearScrollLatchAlt
1580xA834UpdateObjectSprite
1590xA884SetObjectFlags
1600xA8D1AdvanceObjectFrame
1610xA8E9TestObjectActive
1620xA949UpdateObjectAnimations
1630xA952UpdateObjectAnimation
1640xA992UpdateObjectTimer
1650xA99EDecrementObjectCounter
1660xA9ABUpdateObjectState
1670xA9D8ToggleScrollRegionFlip
1680xA9FFBuildObjectList
1690xAA56ReadControllers
1700xAA63ReadControllerShiftRegister
1710xAAB8StoreControllerButtonBits
1720xAACDEnableRendering
1730xAADCDisableRenderingAndClearNametables
1740xAAEFClearNametablePattern
1750xAB68CopyPaletteFromTable
1760xAB98LoadShadowOamBlock
1770xABA3FillShadowOamBlock
1780xABB1UploadPalette
1790xABE4ApplyPpuScrollAndControl
1800xABF7ShiftAccumulatorRight4
1810xABFCClearOamShadow
1820xAC0DSelectLevelVramWriter
1830xAC3BSetLevelVramStream
1840xAC43FillAttributeBlock
1850xAC4CWriteAttributeBlock
1860xAC62LoadAttributeStream
1870xAC78SetPpuAddressHighAnd40
1880xAC82WriteCompressedVramStream
1890xAC88AdvanceSourceByte
1900xAC96DecodeVramStreamToken
1910xACA7WriteVramRunToken
1920xACC9AdvanceDestinationWord
1930xACD7AdvanceCountWord
1940xACE5WithRenderingEnabled
1950xACF5WriteCompressedVramBlocks
1960xAD19ComputeCollisionBits
1970xAD36ComputePlayerOverlapBits
1980xAE45SetDefaultOverlapBits
1990xAE9BComputeEdgeOverlapBits
2000xAF25InitializeSoundEngine
2010xAF3BUpdateSoundFrame
2020xAF40UpdateAllSoundChannels
2030xAF43UpdateSoundChannel
2040xAF55AdvanceSoundChannelNote
2050xAF69WriteSoundChannelState
2060xAF6BRebuildApuEnableMask
2070xAF73StartSoundChannelNote
2080xAFABAdvanceSoundSequencePointer
2090xAFC5ComputeEnvelopeMask
2100xAFD9ComputeTonePeriod
2110xB000ShiftNoteTableIndex
2120xB007WriteToneRegisters
2130xB029WriteFixedToneRegisters
2140xB03AReadNoteDuration
2150xB049StoreNoteDuration
2160xB059StoreShortNoteDuration
2170xB05DBuildApuChannelMask
2180xB062WriteApuEnable
2190xB06CApplySoundCommand
2200xB083WriteApuControlRegister
2210xB08CAdvanceSoundSequenceStep
2220xB08EAdvanceSoundSequenceStepAlt
2230xB095ReturnFromSoundCommand
2240xB096ReadLoopFlag
2250xB09DHandleNoteTerminator
2260xB0A9HandleSustainCounter
2270xB0B3LoadSoundSequenceStep
2280xB0C6DecrementSustainCounter
Reference in new issue View Git Blame Copy Permalink