Comp: O = Apple II+ E = Apple IIe C = Apple IIc G = Apple IIgs Act: R = Read W = Write 7 = Bit 7 V = Value Address Name Comp Act Description C000 49152 KBD OECG R Last Key Pressed + 128 80STOREOFF ECG W Use $C002-$C005 for Aux Memory C001 49153 80STOREON ECG W Use PAGE2 for Aux Memory C002 49154 RDMAINRAM ECG W If 80STORE Off: Read Main Mem $0200-$BFFF C003 49155 RDCARDRAM ECG W If 80STORE Off: Read Aux Mem $0200-$BFFF C004 49156 WRMAINRAM ECG W If 80STORE Off: Write Main Mem $0200-$BFFF C005 49157 WRCARDRAM ECG W If 80STORE Off: Write Aux Mem $0200-$BFFF C006 49158 SETSLOTCXROM E G W Peripheral ROM ($C100-$CFFF) C007 49159 SETINTCXROM E G W Internal ROM ($C100-$CFFF) C008 49160 SETSTDZP ECG W Main Stack and Zero Page C009 49161 SETALTZP ECG W Aux Stack and Zero Page C00A 49162 SETINTC3ROM E G W ROM in Slot 3 C00B 49163 SETSLOTC3ROM E G W ROM in Aux Slot C00C 49164 CLR80VID ECG W 40 Columns C00D 49165 SET80VID ECG W 80 Columns C00E 49166 CLRALTCHAR ECG W Primary Character Set C00F 49167 SETALTCHAR ECG W Alternate Character Set C010 49168 KBDSTRB OECG WR Keyboard Strobe C011 49169 RDLCBNK2 ECG R7 Status of Selected $Dx Bank C012 49170 RDLCRAM ECG R7 Status of $Dx ROM / $Dx RAM C013 49171 RDRAMRD ECG R7 Status of Main/Aux RAM Reading C014 49172 RDRAMWRT ECG R7 Status of Main/Aux RAM Writing C015 49173 RDCXROM E G R7 Status of Periph/ROM Access RSTXINT C R Reset Mouse X0 Interrupt C016 49174 RDALTZP ECG R7 Status of Main/Aux Stack and Zero Page C017 49175 RDC3ROM E G R7 Status of Slot 3/Aux Slot ROM RSTYINT C R Reset Mouse Y0 Interrupt C018 49176 RD80STORE ECG R7 Status of $C002-$C005/PAGE2 for Aux Mem C019 49177 RDVBL E G R7 Vertical Blanking (E:1=drawing G:0=drawing) RSTVBL C R Reset Vertical Blanking Interrupt C01A 49178 RDTEXT ECG R7 Status of Text/Graphics C01B 49179 RDMIXED ECG R7 Status of Full Screen/Mixed Graphics C01C 49180 RDPAGE2 ECG R7 Status of Page 1/Page 2 C01D 49181 RDHIRES ECG R7 Status of LoRes/HiRes C01E 49182 RDALTCHAR ECG R7 Status of Primary/Alternate Character Set C01F 49183 RD80VID ECG R7 Status of 40/80 Columns C020 49184 TAPEOUT OE R Toggle Cassette Tape Output C021 49185 MONOCOLOR G W 7 Color/Mono C022 49186 TBCOLOR G V Screen Color: Low Nibble is BG, High Nibble is Text C023 49187 VGCINT G V Video Graphics Controller Interrupts: b0-2=ext,scan,1sec enable b4-7=ext,scan,1sec,VGC C024 49188 MOUSEDATA G V Mouse Data: High Bit is Button, Other Bits are Movement C025 49189 KEYMODREG G V Modifier Keys: Bit 7: Command, Bit 6: Option, Bit 5: NotUsed, Bit 4: Keypad, Bit 3: Repeat, Bit 2: Caps, Bit 1: Control, Bit 0: Shift C026 49190 DATAREG G V ADB Command/Data b0-2=# b3=valid b4=clr buf b5=reboot b6=abort b7=status C027 49191 KMSTATUS G V ADB Status: b0=cmdFull b1=mouseX b2=keyIntr b3=key b4=cmdIntr b5=data 6=mouseInt 7=mouse C028 49192 ROMBANK ???? ROM bank select toggle C029 49193 NEWVIDEO G V New Video: 129=SHR, 1=None, Bit 6=Linearize, Bit 5=BW C02B 49195 LANGSEL G Bit 3=Secondary Bit 4=50Hz Bits 5-7=Display Language C02C 49196 CHARROM ???? Addr for test mode read of character ROM C02D 49197 SLTROMSEL G Slot Register; Bits 1-7=use slot card C02E 49198 VERTCNT ???? Addr for read of video cntr bits V5-VB C02F 49199 HORIZCNT ???? Addr for read of video cntr bits VA-H0 C030 48200 SPKR OECG R Toggle Speaker C031 49201 DISKREG G Disk Interface: Bit 6=3.5 Bit 7=RWHead 1 C032 49202 SCANINT G V VGC Interrupt-Clear C033 49203 CLOCKDATA G Interface to Battery RAM (undocumented) C034 49204 CLOCKCTL G b0-3=bcol b5=stopBit b6=read b7=start C035 49205 SHADOW G Inhibit Shadowing: Bit 6: I/O Memory, Bit 5: Alternate Display Mode, Bit 4: Auxilary HGR, Bit 3: Super HiRes, Bit 2: HiRes Page 2, Bit 1: HiRes Page 1, Bit 0: Text/LoRes C036 49206 CYAREG G Bits 0-3=Disk Detect Bit 4=Shadow All Banks Bit 7=Fast C037 49207 BMAREG G Bit 5=BW C038 49208 SCCBREG G SCC Command Channel B C039 49209 SCCAREG G SCC Command Channel A C03A 49210 SCCBDATA G SCC Data Channel B C03B 49211 SCCADATA G SCC Data Channel A C03C 49212 SOUNDCTL G V Sound Settings: Bits 0-3=Volume Bit 5=AutoIncr Bit 6=RAM Bit 7=Busy C03D 49213 SOUNDDATA G Sound Data C03E 49214 SOUNDADRL G Address Pointer L C03F 49215 SOUNDADRH G Address Pointer H C040 49216 OE R Game I/O Strobe Output RDXYMSK C R7 Read X0/Y0 Interrupt C041 49217 RDVBLMSK C R7 Read VBL Interrupt C042 49218 RDX0EDGE C R7 Read X0 Edge Selector C043 49219 RDY0EDGE C R7 Read Y0 Edge Selector C044 49220 MMDELTAX G V Mega II Mouse Delta Movement X C045 49221 MMDELTAY G V Mega II Mouse Delta Movement Y C046 49222 DIAGTYPE ???? Self or Burn-In diagdistics: Bit 7=burn-in diag INTFLAG ???? b0=IRQ b1=MMmov b2=MMbut b3=VBL b4=qsec b5=AN3 b6=mouse was down b7=mouse is down C047 49223 CLRVBLINT ???? Clear VBL Interrupt C048 49224 CLRXYINT ???? Clear MM Interrupt C048 49224 RSTXY C WR Reset X and Y Interrupts C050 49232 TXTCLR OECG WR Display Graphics C051 49233 TXTSET OECG WR Display Text C052 49234 MIXCLR OECG WR Display Full Screen C053 49235 MIXSET OECG WR Display Split Screen C054 49236 TXTPAGE1 OECG WR Display Page 1 C055 49237 TXTPAGE2 OECG WR If 80STORE Off: Display Page 2 ECG WR If 80STORE On: Read/Write Aux Display Mem C056 49238 LORES OECG WR Display LoRes Graphics C057 49239 HIRES OECG WR Display HiRes Graphics C058 49240 CLRAN0 OE G WR If IOUDIS off: Annunciator 0 Off DISXY C WR If IOUDIS on: Mask X0/Y0 Move Interrupts C059 49241 SETAN0 OE G WR If IOUDIS off: Annunciator 0 On ENBXY C WR If IOUDIS on: Allow X0/Y0 Move Interrupts C05A 49242 CLRAN1 OE G WR If IOUDIS off: Annunciator 1 Off DISVBL C WR If IOUDIS on: Disable VBL Interrupts C05B 49243 SETAN1 OE G WR If IOUDIS off: Annunciator 1 On ENVBL C WR If IOUDIS on: Enable VBL Interrupts C05C 49244 CLRAN2 OE G WR If IOUDIS off: Annunciator 2 Off X0EDGE C WR If IOUDIS on: Interrupt on X0 Rising C05D 49245 SETAN2 OE G WR If IOUDIS off: Annunciator 2 On X0EDGE C WR If IOUDIS on: Interrupt on X0 Falling C05E 49246 CLRAN3 OE G WR If IOUDIS off: Annunciator 3 Off Y0EDGE C WR If IOUDIS on: Interrupt on Y0 Rising DHIRESON ECG WR In 80-Column Mode: Double Width Graphics C05F 49247 SETAN3 OE G WR If IOUDIS off: Annunciator 3 On Y0EDGE C WR If IOUDIS on: Interrupt on Y0 Falling DHIRESOFF ECG WR In 80-Column Mode: Single Width Graphics C060 49248 OE R7 Read Cassette Input C R7 Status of 80/40 Column Switch BUTN3 G R7 Switch Input 3 C061 49249 RDBTN0 EC R7 Switch Input 0 / Open Apple C062 49250 BUTN1 E R7 Switch Input 1 / Solid Apple C063 49251 RD63 E R7 Switch Input 2 / Shift Key C R7 Bit 7 = Mouse Button Not Pressed C064 49252 PADDL0 OECG R7 Analog Input 0 C065 49253 PADDL1 OECG R7 Analog Input 1 C066 49254 PADDL2 OE G R7 Analog Input 2 RDMOUX1 C R7 Mouse Horiz Position C067 49255 PADDL3 OE G R7 Analog Input 3 RDMOUY1 C R7 Mouse Vert Position C068 49256 STATEREG G V b0=INTCXROM b1=ROMBANK b2=LCBNK2 b3=RDROM b4=RAMWRT b5=RAMRD b6=PAGE2 b7=ALTZP C06D 49261 TESTREG ???? Test Mode Bit Register C06E 49262 CLRTM ???? Clear Test Mode C06F 49263 ENTM ???? Enable Test Mode C070 49364 PTRIG E R Analog Input Reset C WR Analog Input Reset + Reset VBLINT Flag C078 49372 C W Disable IOU Access C079 49373 C W Enable IOU Access C07E 49278 IOUDISON EC W Disable IOU RDIOUDIS EC R7 Status of IOU Disabling C07F 49279 IOUDISOFF EC W Enable IOU RDDHIRES EC R7 Status of Double HiRes C080 49280 OECG R Read RAM bank 2; no write C081 49281 ROMIN OECG RR Read ROM; write RAM bank 2 C082 49282 OECG R Read ROM; no write C083 49283 LCBANK2 OECG RR Read/write RAM bank 2 C084 49284 OECG R Read RAM bank 2; no write C085 49285 ROMIN OECG RR Read ROM; write RAM bank 2 C086 49286 OECG R Read ROM; no write C087 49287 LCBANK2 OECG RR Read/write RAM bank 2 C088 49288 OECG R Read RAM bank 1; no write C089 49289 OECG RR Read ROM; write RAM bank 1 C08A 49290 OECG R Read ROM; no write C08B 49291 OECG RR Read/write RAM bank 1 C08C 49292 OECG R Read RAM bank 1; no write C08D 49293 OECG RR Read ROM; write RAM bank 1 C08E 49294 OECG R Read ROM; no write C08F 49295 OECG RR Read/write RAM bank 1 C090--C09F slot 1 C0A0--C0AF slot 2 C0B0--C0BF slot 3 C0C0--C0CF slot 4 C0D0--C0DF slot 5 C0E0--C0EF slot 6 C0F0--C0FF slot 7 -- /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/ jonrelay@napanet.net dimension18.cjb.net An Apple II fanatic since 1998! S0.5 LIS+++! Suzy+++! M1987 A Macintosh fanatic since 1996? OM0.1 OZY++ MIL+++! M1987 An Ozy & Millie fanatic since 2000. MC1.0 CHL+++! TAM+++! M1987 "Remember, if it's not a secure web server, it's an _insecure_ web server!" -- Me *_ Syntax Error: an error on a criminal's tax record. | Bad Subscript: a criminal reading a book on a subway. --- Unimplemented Trap: when a bear trap isn't set up |' ,| properly and thus does not work. --- Overflow: too many ice cubes. Don't forget: Tammy Day on February 15th! Please remove capital letters from my e-mail address to respond.