Promote NES PowerPad Test Card (U) from _wip to top-level project
Moves NES PowerPad Test Card (U) from _wip/ to NES PowerPad Test Card (U)/ with full ROM build: - Adds header.s, chr.s, linker.cfg (HEADER+PRG+CHR segments) - Updates Makefile to build and verify reconstructed.nes vs rom.nes - Adds rom.nes copy + copilot/rom.nes symlink per repo convention - Verified byte-identical build Pass 1 complete: full code/data classification (~7.2% code / ~92.8% data) Pass 2 complete: routine headers for all ~50 labels, semantic naming for key routines (Reset, NmiHandler, VramWrite, ReadPad, ProcessPads, etc.), zero-page aliases in locals.inc (Zp00-Zp15) Pass 3 complete: data tables named (PaletteData at , PadBitTableLives at ) Root OVERVIEW.md updated: - Removes NES PowerPad Test Card from _wip skeleton table (21 → 20 skeletons) - Adds NES PowerPad Test Card as #15 in numbered inventory (BYTE-IDENTICAL, Pass 2/3) - Updates summary count from 14 to 15 projects
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CA65 ?= ca65
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LD65 ?= ld65
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all: reconstructed.nes verify
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prg.o: prg.s symbols.inc locals.inc
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$(CA65) -g -o $@ $<
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header.o: header.s
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$(CA65) -g -o $@ $<
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chr.o: chr.s
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$(CA65) -g -o $@ $<
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reconstructed.nes: header.o prg.o chr.o linker.cfg
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$(LD65) -C linker.cfg -m reconstructed.map -Ln reconstructed.lbl -o $@ header.o prg.o chr.o
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verify: reconstructed.nes
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cmp reconstructed.nes rom.nes
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@echo "Byte-identical ROM verified."
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clean:
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rm -f *.o reconstructed.nes reconstructed.map reconstructed.lbl
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.PHONY: all verify clean
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.segment "CHR"
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.incbin "chr.bin"
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.segment "HEADER"
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.incbin "header.bin"
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MEMORY {
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HEADER: start = $0000, size = $0010, fill = yes;
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PRG: start = $C000, size = $4000, file = %O, fill = yes;
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CHR: start = $0000, size = $2000, file = %O, fill = yes;
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}
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SEGMENTS {
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HEADER: load = HEADER, type = ro;
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PRG: load = PRG, type = ro;
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CHR: load = CHR, type = ro;
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}
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; NES PowerPad Test Card (U) zero-page aliases - Pass 2
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; Semantic names for addresses with observed usage patterns.
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Zp00 = $00 ; PPUCTRL shadow register
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Zp01 = $01 ; PPUMASK shadow register
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Zp02 = $02 ; VBlank flag (set by NMI, cleared by WaitForVBlank)
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Zp03 = $03 ; Frame counter / NMI tick counter
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Zp05 = $05 ; Score/digit temp
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Zp06 = $06 ; Pad 1 state byte 1 (shifted pad data)
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Zp07 = $07 ; Pad 1 state byte 2
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Zp08 = $08 ; Pad 1 state byte 3
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Zp09 = $09 ; Pad 1 state byte 4
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Zp0A = $0A ; Pad 2 state byte 1
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Zp0B = $0B ; Pad 2 state byte 2
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Zp0C = $0C ; Pad temp / swap variable
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Zp0D = $0D ; Pad mode / draw flag
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Zp0E = $0E ; Shift counter / temp
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Zp0F = $0F ; Delay counter
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Zp10 = $10 ; VRAM pointer low byte (indirect)
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Zp11 = $11 ; VRAM pointer high byte (indirect)
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Zp12 = $12 ; Score digit 1 accumulator
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Zp13 = $13 ; Score digit 2 accumulator
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Zp14 = $14 ; Score digit 3 accumulator
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Zp15 = $15 ; Score digit 4 accumulator
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Load diff
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al 00E548 .Label_E548
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al 00E53A .ClearScreen
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al 00E534 .ClearAPUNoise
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al 00E52E .SetAPUNoise
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al 00E522 .Label_E522
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al 00E514 .Label_E514
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al 00E52D .ProcessPadBitsDone
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al 00E509 .Label_E509
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al 00E4FA .ProcessPadBits
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al 00E4B4 .PadBitTableLives
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al 00E4AA .LoadPatternTable7
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al 00E4A0 .LoadPatternTable6
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al 00E49F .UpdatePadsDone
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al 00E48F .Label_E48F
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al 00E47F .UpdatePads
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al 00E47A .Label_E47A
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al 00E471 .Label_E471
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al 00E46F .ShiftVar4
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al 00E46A .Label_E46A
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al 00E45F .Label_E45F
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al 00E459 .ShiftVar3
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al 00E454 .Label_E454
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al 00E44B .Label_E44B
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al 00E449 .ShiftVar2
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al 00E444 .Label_E444
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al 00E439 .Label_E439
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al 00E433 .ShiftVar1
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al 00E424 .Label_E424
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al 00E42F .Label_E42F
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al 00E41E .Label_E41E
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al 00E407 .DrawLives
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al 00E3F8 .Label_E3F8
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al 00E403 .Label_E403
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al 00E3F5 .Label_E3F5
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al 00E3E1 .DrawScore
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al 00E3D8 .Label_E3D8
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al 00E3D1 .Label_E3D1
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al 00E3C3 .Label_E3C3
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al 00E3B5 .Label_E3B5
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al 00E3AE .Label_E3AE
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al 00E3A0 .Label_E3A0
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al 00E398 .ProcessPads
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al 00E37F .Label_E37F
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al 00E362 .ShiftPads
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al 00E35B .Label_E35B
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al 00E34D .Label_E34D
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al 00E361 .ReadPadDone
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al 00E338 .ReadPad
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al 00E32D .ClearGameVars
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al 00E326 .Label_E326
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al 00E312 .Label_E312
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al 00E2FE .Label_E2FE
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al 00E2F0 .ClearRows
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al 00E2B0 .DrawPlayer2Pad
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al 00E270 .DrawPlayer1Pad
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al 00E236 .InitRoundParams
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al 00E22D .ResetScroll
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al 00E219 .SetPPUCTRL_NMI
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al 00E1FB .DisableNMI
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al 00E1F1 .EnableNMI
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al 00E1E3 .Label_E1E3
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al 00E1F0 .VramWriteDone
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al 00E1D2 .Label_E1D2
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al 00E1CC .VramWrite
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al 00E1C2 .LoadPatternTable5
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al 00E1B8 .LoadPatternTable4
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al 00E1AE .LoadPatternTable3
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al 00E1A4 .LoadPatternTable2
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al 00E19A .LoadPatternTable1
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al 00E187 .ClearVRAM_FillFF
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al 00E16B .InitAPU
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al 00E164 .Label_E164
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al 00E150 .Label_E150
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al 00E142 .ClearVRAM_Fill23
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al 00E141 .ClearPaletteDone
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al 00E121 .PaletteData
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al 00E113 .Label_E113
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al 00E107 .LoadPalette
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al 00E0FB .Label_E0FB
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al 00E0EB .ClearVRAM
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al 00E0DD .Label_E0DD
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al 00E0CF .Label_E0CF
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al 00E0C9 .ClearRAM
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al 00E0B5 .Label_E0B5
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al 00E0B0 .Label_E0B0
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al 00E09B .ResetInit
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al 00E092 .WaitForVBlank
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al 00E06E .NmiHandler
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al 00E068 .Label_E068
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al 00E058 .Label_E058
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al 00E02F .Label_E02F
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al 00E02B .Label_E02B
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al 00E01E .Label_E01E
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al 00E000 .Reset
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Modules list:
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-------------
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header.o:
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HEADER Offs=000000 Size=000010 Align=00001 Fill=0000
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prg.o:
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PRG Offs=000000 Size=004000 Align=00001 Fill=0000
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chr.o:
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CHR Offs=000000 Size=002000 Align=00001 Fill=0000
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Segment list:
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-------------
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Name Start End Size Align
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----------------------------------------------------
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CHR 000000 001FFF 002000 00001
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HEADER 000000 00000F 000010 00001
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PRG 00C000 00FFFF 004000 00001
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Exports list by name:
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---------------------
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Exports list by value:
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----------------------
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Imports list:
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-------------
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../rom.nes
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; =============================================================================
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; Nintendo Entertainment System hardware symbols
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; =============================================================================
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; -----------------------------------------------------------------------------
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; PPU registers
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; -----------------------------------------------------------------------------
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PPUCTRL = $2000
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PPUMASK = $2001
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PPUSTATUS = $2002
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OAMADDR = $2003
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OAMDATA = $2004
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PPUSCROLL = $2005
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PPUADDR = $2006
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PPUDATA = $2007
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OAMDMA = $4014
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; -----------------------------------------------------------------------------
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; Controller ports
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;
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; $4016:
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; Write: controller strobe
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; Read: controller port 1
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;
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; $4017:
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; Read: controller port 2
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; Write: APU frame counter
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; -----------------------------------------------------------------------------
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JOY1 = $4016
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JOY2 = $4017
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; -----------------------------------------------------------------------------
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; APU pulse channel 1
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; -----------------------------------------------------------------------------
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APUPULSE1CTRL = $4000
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APUPULSE1SWEEP = $4001
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APUPULSE1TIMERLO = $4002
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APUPULSE1TIMERHI = $4003
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; -----------------------------------------------------------------------------
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; APU pulse channel 2
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; -----------------------------------------------------------------------------
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APUPULSE2CTRL = $4004
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APUPULSE2SWEEP = $4005
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APUPULSE2TIMERLO = $4006
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APUPULSE2TIMERHI = $4007
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; -----------------------------------------------------------------------------
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; APU triangle channel
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; -----------------------------------------------------------------------------
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APUTRIANGLECTRL = $4008
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APUTRIANGLETIMERLO = $400A
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APUTRIANGLETIMERHI = $400B
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; -----------------------------------------------------------------------------
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; APU noise channel
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; -----------------------------------------------------------------------------
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APUNOISECTRL = $400C
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APUNOISEPERIOD = $400E
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APUNOISELENGTH = $400F
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; -----------------------------------------------------------------------------
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; APU DMC channel
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; -----------------------------------------------------------------------------
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APUDMCCTRL = $4010
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APUDMCDIRECT = $4011
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APUDMCADDR = $4012
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APUDMCLENGTH = $4013
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; -----------------------------------------------------------------------------
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; APU status and frame counter
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;
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; $4015:
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; Write: enable or disable the five APU channels
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; Read: channel and interrupt status
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;
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; $4017:
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; Write: APU frame-counter mode and IRQ inhibit
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; Read: controller port 2
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; -----------------------------------------------------------------------------
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APUSTATUS = $4015
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APUFRAMECOUNTER = $4017
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; -----------------------------------------------------------------------------
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; Controller masks
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; -----------------------------------------------------------------------------
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PAD_RIGHT = $01
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PAD_LEFT = $02
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PAD_DOWN = $04
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PAD_UP = $08
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PAD_START = $10
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PAD_SELECT = $20
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PAD_B = $40
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PAD_A = $80
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PAD_HORIZONTAL = PAD_LEFT | PAD_RIGHT
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PAD_VERTICAL = PAD_UP | PAD_DOWN
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PAD_DPAD = PAD_HORIZONTAL | PAD_VERTICAL
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