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6502bench/SourceGen/RuntimeData/Apple/Cxxx-IO.sym65

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; Copyright 2018 faddenSoft. All Rights Reserved.
; See the LICENSE.txt file for distribution terms (Apache 2.0).
;
; Sources:
; NiftyList, by Dave Lyons
; Various Apple II reference materials found online
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*SYNOPSIS Symbols from the Cxxx I/O area, common to most Apple II models.
; There's a lot here that you wouldn't find on an Apple ][+, but since
; this is for a disassembler it's okay to have extra stuff so long as it
; doesn't conflict.
KBD < $C000 ;R last key pressed + 128
CLR80COL > $C000 ;W use $C002-C005 for aux mem (80STOREOFF)
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SET80COL @ $C001 ;W use PAGE2 for aux mem (80STOREON)
RDMAINRAM @ $C002 ;W if 80STORE off: read main mem $0200-BFFF
RDCARDRAM @ $C003 ;W if 80STORE off: read aux mem $0200-BFFF
WRMAINRAM @ $C004 ;W if 80STORE off: write main mem $0200-BFFF
WRCARDRAM @ $C005 ;W if 80STORE off: write aux mem $0200-BFFF
SETSLOTCXROM @ $C006 ;W use peripheral ROM ($C100-CFFF)
SETINTCXROM @ $C007 ;W use internal ROM ($C100-CFFF)
SETSTDZP @ $C008 ;W use main stack and zero page
SETALTZP @ $C009 ;W use aux stack and zero page
SETINTC3ROM @ $C00A ;W use internal slot 3 ROM
SETSLOTC3ROM @ $C00B ;W use external slot 3 ROM
CLR80VID @ $C00C ;W disable 80-column display mode
SET80VID @ $C00D ;W enable 80-column display mode
CLRALTCHAR @ $C00E ;W use primary char set
SETALTCHAR @ $C00F ;W use alternate char set
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KBDSTRB @ $C010 ;RW keyboard strobe
RDLCBNK2 @ $C011 ;R bit 7: reading from LC bank 2 ($Dx)?
RDLCRAM @ $C012 ;R bit 7: reading from LC RAM?
RDRAMRD @ $C013 ;R bit 7: reading from aux/alt 48K?
RDRAMWRT @ $C014 ;R bit 7: writing to aux/alt 48K?
RDCXROM @ $C015 ;R bit 7: using internal slot ROM?
RDALTZP @ $C016 ;R bit 7: using alt zero page, stack, & LC?
RDC3ROM @ $C017 ;R bit 7: using external (slot 3) ROM?
RD80COL @ $C018 ;R bit 7: 80STORE is on?
RDVBLBAR @ $C019 ;R bit 7: not VBL (VBL signal is low)?
RDTEXT @ $C01A ;R bit 7: using text mode?
RDMIX @ $C01B ;R bit 7: using mixed mode?
RDPAGE2 @ $C01C ;R bit 7: using page 2?
RDHIRES @ $C01D ;R bit 7: using hi-res graphics?
ALTCHARSET @ $C01E ;R bit 7: using alt char set?
RD80VID @ $C01F ;R bit 7: using 80 columns?
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TAPEOUT @ $C020 ;RW toggle caseette tape output
MONOCOLOR @ $C021 ;W color/mono
TBCOLOR @ $C022 ;RW screen color (low is BG, high is FG)
VGCINT @ $C023 ;R VGC interrupts
MOUSEDATA @ $C024 ;R mouse data: high bit is button
KEYMODREG @ $C025 ;R modifier key state
DATAREG @ $C026 ;RW ADB command/data
KMSTATUS @ $C027 ;RW ADB status
ROMBANK @ $C028 ;RW ROM bank select (IIc Plus)
NEWVIDEO @ $C029 ;RW video select (SHR)
LANGSEL @ $C02B ;RW ROM bank select
CHARROM @ $C02C ;R addr for character ROM test
SLTROMSEL @ $C02D ;RW slot vs. ROM selection
VERTCNT @ $C02E ;R read video counter bits (V5-VB)
HORIZCNT @ $C02F ;R read video counter bits (VA-H0)
SPKR @ $C030 ;RW toggle speaker
DISKREG @ $C031 ;RW disk interface
SCANINT @ $C032 ;W VGC interrupt clear
CLOCKDATA @ $C033 ;RW battery RAM interface
CLOCKCTL @ $C034 ;RW bits 0-3 = border color
SHADOW @ $C035 ;RW inhibit shadowing
CYAREG @ $C036 ;RW Configure Your Apple
DMAREG @ $C037 ;RW
SCCBREG @ $C038 ;RW SCC command channel B
SCCAREG @ $C039 ;RW SCC command channel A
SCCBDATA @ $C03A ;RW SCC data channel B
SCCADATA @ $C03B ;RW SCC data channel A
SOUNDCTL @ $C03C ;RW sound settings (0-3=volume)
SOUNDDATA @ $C03D ;RW sound data
SOUNDADRL @ $C03E ;RW low pointer
SOUNDADRH @ $C03F ;RW high pointer
STROBE @ $C040 ;R game I/O strobe
INTEN @ $C041 ;RW read VBL interrupt
MMDELTAX @ $C044 ;R mouse delta movement X
MMDELTAY @ $C045 ;R mouse delta movement Y
DIAGTYPE @ $C046 ;W self-test diagnostics
CLRVBLINT @ $C047 ;W clear VBL interrupt
CLRXYINT @ $C048 ;W clear XY interrupt
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EMUBYTE @ $C04F ;RW used by emulators to identify themselves
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TXTCLR @ $C050 ;RW display graphics
TXTSET @ $C051 ;RW display text
MIXCLR @ $C052 ;RW display full screen
MIXSET @ $C053 ;RW display split screen
TXTPAGE1 @ $C054 ;RW display page 1
TXTPAGE2 @ $C055 ;RW display page 2 (or read/write aux mem)
LORES @ $C056 ;RW display lo-res graphics
HIRES @ $C057 ;RW display hi-res graphics
SETAN0 @ $C058 ;RW annunciator 0 off
CLRAN0 @ $C059 ;RW annunciator 0 on
SETAN1 @ $C05A ;RW annunciator 1 off
CLRAN1 @ $C05B ;RW annunciator 1 on
SETAN2 @ $C05C ;RW annunciator 2 off
CLRAN2 @ $C05D ;RW annunciator 2 on
SETAN3 @ $C05E ;RW annunciator 3 off
SETDHIRES = $C05E ;W if IOUDIS set, turn on double hi-res
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CLRAN3 @ $C05F ;RW annunciator 3 on
CLRDHIRES = $C05F ;W if IOUDIS set, turn off double hi-res
TAPEIN @ $C060 ;R read cassette input
BUTN3 = $C060 ;R switch input 3
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BUTN0 @ $C061 ;R switch input 0 / open-apple
BUTN1 @ $C062 ;R switch input 1 / closed-apple
BUTN2 @ $C063 ;R switch input 2 / shift key
PADDL0 @ $C064 ;R analog input 0
PADDL1 @ $C065 ;R analog input 1
PADDL2 @ $C066 ;R analog input 2
PADDL3 @ $C067 ;R analog input 3
STATEREG @ $C068 ;RW address state
TESTREG @ $C06D ;test mode
CLTRM @ $C06E ;clear test mode
ENTM @ $C06F ;enable test mode
PTRIG @ $C070 ;RW analog input reset
RDIOUDIS < $C07E ;R status of IOU disabling
SETIOUDIS > $C07E ;W disable IOU
RDDHIRES < $C07F ;R status of double hi-res
CLRIOUDIS > $C07F ;W enable IOU
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LCBANK2_RW @ $C080 ;RW read RAM bank 2, write off
ROMIN @ $C081 ;RWx2 read ROM, write RAM bank 2
ROMIN_RO @ $C082 ;RW read ROM, no write
LCBANK2 @ $C083 ;RWx2 read/write RAM bank 2
; C084-C087 repeats
LCBANK1_RW @ $C088 ;RW read RAM bank 1, write off
ROMIN1 @ $C089 ;RW read ROM, write RAM bank 1
ROMIN1_RO @ $C08A ;RW read ROM, no write
LCBANK1 @ $C08B ;RWx2 read/write RAM bank 1
; C08C-C08F repeats
CLRROM @ $CFFF ;disable slot C8 ROM
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; Not strictly I/O locations, but they're in the neighborhood.
ROM_AUXMOVE @ $C311
ROM_XFER @ $C314
;
; I/O scratchpad RAM addresses
;
; Each slot has 8 bytes of storage available in the "screen holes" in
; text page 1. See Apple II Reference Manual table page 83,
; "Peripheral Slot Scratchpad RAM", and
; https://retrocomputing.stackexchange.com/a/2541/56
;
; Slot number:
; * 1 2 3 4 5 6 7
; $0478 $0479 $047A $047B $047C $047D $047E $047F
; $04F8 $04F9 $04FA $04FB $04FC $04FD $04FE $04FF
; $0578 $0579 $057A $057B $057C $057D $057E $057F
; $05F8 $05F9 $05FA $05FB $05FC $05FD $0SFE $05FF
; $0678 $0679 $067A $067B $067C $067D $067E $067F
; $06F8 $06F9 $06FA $06FB $06FC $06FD $06FE $06FF
; $0778 $0779 $077A $077B $077C $077D $077E $077F
; $07F8 $07F9 $07FA $07FB $07FC $07FD $07FE $07FF
;
; The slot 0 holes are shared among peripheral cards and the operating
; system, e.g. DOS puts the slot number of the peripheral card from
; which it was booted into $5F8.
;
SCRNHOLE0 @ $0478 8 ;text page 1 screen holes
SCRNHOLE1 @ $04F8 8 ;text page 1 screen holes
SCRNHOLE2 @ $0578 8 ;text page 1 screen holes
SCRNHOLE3 @ $05F8 8 ;text page 1 screen holes
SCRNHOLE4 @ $0678 8 ;text page 1 screen holes
SCRNHOLE5 @ $06F8 8 ;text page 1 screen holes
SCRNHOLE6 @ $0778 8 ;text page 1 screen holes
SCRNHOLE7 @ $07F8 8 ;text page 1 screen holes
ACTV_PERIP_SLOT @ $07F8 ;slot num ($Cn) of active peripheral card