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tmerritt 6740550ac0 CDL re-trace: 1942 (JU) 46.6%, Galaga (U) 32.3% (Pass 2/3 complete)

Pass 3 _wip: semantic ZP aliases for Sqoon (U) (FrameCounter, PpuCtrlShadow, NmiFrameFlag) and Elevator Action (U) (PpuCtrlShadow, NmiSaveA/X/Y)
Pass 3 Slalom (U): semantic ZP aliases (PpuCtrlShadow, PpuMaskShadow)
Pass 3 Kung Fu (U): semantic ZP alias (PpuCtrlShadow)
Pass 3 Othello (U): semantic ZP alias (PpuCtrlShadow)
Pass 3 1942 (JU): semantic ZP alias (PpuCtrlShadow)
Pass 3 Galaga (U): semantic ZP aliases (PpuCtrlShadow, PpuMaskShadow)
Docs: add power-on flow + data-table inventory to READMEs of 13 promoted NROM projects
Pass 3 Elevator Action (U): add NmiFrameFlag alias
Pass 3 Elevator Action (U): full ZP naming (23 aliases) + 25 named data tables, 59.4% coverage
Pass 1/2/3 re-trace: recover unreached code in 7 NROM projects (Sqoon 56.4%, Elevator Action 59.3%, Kung Fu 52.1%, 1942 52.1%)
Pass 3 Sqoon (U): full ZP naming (22 aliases) + 17 named data tables
Pass 3 Kung Fu (U): full ZP naming (21 aliases) + 13 named data tables
Pass 3 Othello (U): full ZP naming (18 aliases) + 27 named data tables
Pass 3 1942 (JU): full ZP naming (14 aliases) + 19 named data tables
Pass 3 Galaga (U): full ZP naming (15 aliases) + 14 named data tables
Pass 3 Slalom (U): full ZP naming (16 aliases) + 16 named data tables
Pass 2/3: re-apply naming to Slalom (U), Othello (U), Galaga (U) after re-seed
Pass 1/2/3 re-trace: recover unreached code in 6 more promoted NROM projects
Pass 3 Stack-Up (JU): full ZP naming (15 aliases) + 12 named data tables
Pass 3 Tag Team Wrestling (U): full ZP naming (20 aliases) + 11 named data tables
Pass 3 Kung Fu (U) (a1): full ZP naming (20 aliases) + 12 named data tables
Pass 3 Magmax (U): full ZP naming (18 aliases) + 6 named data tables
Pass 3 Soccer (JU): full ZP naming (18 aliases) + 9 named data tables
Pass 3 Ms Pac-Man (Namco) (U): full ZP naming (18 aliases) + 8 named data tables
Docs: refresh coverage numbers and data-table inventories for 13 promoted NROM projects

2026-10-21 16:43:54 -04:00

2.9 KiB

Raw Blame History

Sqoon (U)

Status

Pass 3 complete; promoted. prg.s is a traced disassembly with all address-derived labels replaced, all jsr/jmp operands symbolic, hardware registers named via symbols.inc, and apply_symbols.py reporting 0 residue. Code coverage: 18,471 / 32,768 bytes (56.4%). make assembles and verifies byte-identical to rom.nes.

ROM

Property	Value
Format	iNES
Mapper	0 (NROM)
PRG	32 KB
CHR	8 KB
Mirroring	Vertical
NMI vector	$8014
RESET vector	$8000
IRQ vector	$80F1

Power-on flow

RESET enters at $8000:

ldx #$FF                       ; CPU:$8000 PRG:0000  A2 FF
txs                            ; CPU:$8002 PRG:0002  9A
stx NmiFrameFlag                       ; CPU:$8003 PRG:0003  86 FE
jsr Sub_82B2                   ; CPU:$8005 PRG:0005  20 B2 82
jsr Sub_817B                   ; CPU:$8008 PRG:0008  20 7B 81
lda #$00                       ; CPU:$800B PRG:000B  A9 00
sta NmiFrameFlag                       ; CPU:$800D PRG:000D  85 FE
sta Zp9A                       ; CPU:$800F PRG:000F  85 9A
jmp Sub_80EE                   ; CPU:$8011 PRG:0011  4C EE 80
pha                            ; CPU:$8014 PRG:0014  48
lda NmiFrameFlag                       ; CPU:$8015 PRG:0015  A5 FE
beq NmiHandler_Loop            ; CPU:$8017 PRG:0017  F0 03

NMI handler at $8014:

pha                            ; CPU:$8014 PRG:0014  48
lda NmiFrameFlag                       ; CPU:$8015 PRG:0015  A5 FE
beq NmiHandler_Loop            ; CPU:$8017 PRG:0017  F0 03
jmp IrqHandler                 ; CPU:$8019 PRG:0019  4C F1 80
inc NmiFrameFlag                       ; CPU:$801C PRG:001C  E6 FE
inc FrameCounter                       ; CPU:$801E PRG:001E  E6 54
jsr Sub_8158                   ; CPU:$8020 PRG:0020  20 58 81
lda PpuCtrlShadow                       ; CPU:$8023 PRG:0023  A5 1D

Data-table inventory (Pass 3)

$833A-$83A2 (105 bytes) - EnemyAnimationScriptTable
$83C2-$83D3 (18 bytes) - RoutinePointerTable
$84A0-$84AF (16 bytes) - EnemyPathDeltaTable
$85F3-$8606 (20 bytes) - GameOverText
$8690-$86A9 (26 bytes) - EnemyGraphicTileIndexTable
$8814-$8825 (18 bytes) - LevelObjectDefinitionTable
$8AB4-$8AD7 (36 bytes) - EnemyTileIndexTable
$8B48-$8B55 (14 bytes) - PhaseLeftText
$8BBD-$8BC7 (11 bytes) - LevelStartParameterTable
$8C41-$8C60 (32 bytes) - EnemyMovementParameterTable
$B5D5-$B5DD (9 bytes) - HomeDataText
$BB39-$DC18 (8416 bytes) - LevelGraphicData
$DC6E-$DC8A (29 bytes) - EnemySpeedParameterTable
$DD1A-$E08A (881 bytes) - SpriteGraphicData
$E134-$E238 (261 bytes) - EnemyHandlerPointerTable
$E4B7-$F5D3 (4381 bytes) - LevelCollisionData
$FFE8-$FFFF (24 bytes) - VectorTable

Build

Byte-identical ROM verified.

2.9 KiB Raw Blame History