tmerritt
b43b4a149d
Moves Joypad Test Cartridge (U) from _wip/ to Joypad Test Cartridge (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 (~3.5% code / ~96.5% data) Pass 2 complete: routine headers for all labels, semantic naming for key routines (Reset, NmiHandler, VramWrite, PpuScrollLatch, VramPtrWrite, RetAddrUpdate, etc.), zero-page aliases in locals.inc Root OVERVIEW.md updated: - Removes Joypad Test Cartridge from _wip skeleton table (22 -> 21 skeletons) - Adds Joypad Test Cartridge as #14 in numbered inventory (BYTE-IDENTICAL, Pass 2) - Updates summary count from 13 to 14 projects
108 lines
3.3 KiB
PHP
108 lines
3.3 KiB
PHP
; =============================================================================
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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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; $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 |