tmerritt
6740550ac0
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
Stack-Up (JU)
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: 10,586 / 32,768 bytes (32.3%).
make assembles and verifies byte-identical to rom.nes.
ROM
| Property | Value |
|---|---|
| Format | iNES |
| Mapper | 0 (NROM) |
| PRG | 32 KB |
| CHR | 8 KB |
| Mirroring | Horizontal |
| NMI vector | $81AD |
| RESET vector | $8100 |
| IRQ vector | $81E6 |
Power-on flow
RESET enters at $8100:
cld ; CPU:$8100 PRG:0100 D8
sei ; CPU:$8101 PRG:0101 78
ldx #$00 ; CPU:$8102 PRG:0102 A2 00
stx PPUCTRL ; CPU:$8104 PRG:0104 8E 00 20
stx PPUMASK ; CPU:$8107 PRG:0107 8E 01 20
lda PPUSTATUS ; CPU:$810A PRG:010A AD 02 20
bpl Reset_OnNonnegative ; CPU:$810D PRG:010D 10 FB
dex ; CPU:$810F PRG:010F CA
txs ; CPU:$8110 PRG:0110 9A
ldx Zp2F ; CPU:$8111 PRG:0111 A6 2F
ldy #$07 ; CPU:$8113 PRG:0113 A0 07
sty Zp01 ; CPU:$8115 PRG:0115 84 01
NMI handler at $81AD:
pha ; CPU:$81AD PRG:01AD 48
txa ; CPU:$81AE PRG:01AE 8A
pha ; CPU:$81AF PRG:01AF 48
tya ; CPU:$81B0 PRG:01B0 98
pha ; CPU:$81B1 PRG:01B1 48
lda #$00 ; CPU:$81B2 PRG:01B2 A9 00
sta OAMADDR ; CPU:$81B4 PRG:01B4 8D 03 20
lda #$02 ; CPU:$81B7 PRG:01B7 A9 02
Data-table inventory (Pass 3)
$8000-$80FF(256 bytes) -CopyrightText$82EA-$8309(32 bytes) -PlayerNameTable$8827-$8875(79 bytes) -LevelHandlerPointerTable$8BFD-$8C04(8 bytes) -BlockHeightTable$8C3A-$8C69(48 bytes) -BlockPatternTable$8FCF-$8FE3(21 bytes) -BlockShapeTable$9017-$9066(80 bytes) -BlockLayoutTable$9090-$9317(648 bytes) -BlockPlacementCode$9344-$935D(26 bytes) -BlockAttributeTable$943F-$99FD(1471 bytes) -BlockPointerTable$9A2C-$9A96(107 bytes) -BlockColorTable$9AB4-$9AC7(20 bytes) -BlockCountTable$9C52-$9C5E(13 bytes) -BlockSizeTable
Build
Byte-identical ROM verified.