Page 0
| adress | hexaddress | NAME | description | OS |
|---|---|---|---|---|
| 0,1 | $0000,$0001 | LINZBS | both | |
| 2,3 | $0002,$0003 | CASINI | both | |
| 4,5 | $0004,$0005 | RAMLO | both | |
| 6 | $0006 | TRAMSZ | both | |
| 7 | $0007 | TSTDAT | ||
| 8 | $0008 | WARMST | ||
| 9 | $0009 | BOOT? | ||
| 10,11 | $000A,$000B | DOSVEC | ||
| 12,13 | $000C,$000D | DOSINI | ||
| 14,15 | $000E,$000F | APPMHI | ||
| 16 | $0010 | POKMSK | ||
| 17 | $0011 | BRKKEY | ||
| 18,19,20 | $0012,$0013,$0014 | RTCLOK | ||
| 21,22 | $0015,$0016 | BUFADR | ||
| 23 | $0017 | ICCOMT | ||
| 24,25 | $0018,$0019 | DSKFMS | ||
| 26,27 | $001A,$001B | DSKUTL | ||
| 28 | $001C | PTIMOT | ||
| 29 | $001D | PBPNT | ||
| 30 | $001E | PBUFSZT | ||
| 31 | $001F | PTEMP | ||
| 32 | $0020 | ICHIDZ | ||
| 33 | $0021 | PTIMOT | ||
| 34 | $0022 | PTIMOT | ||
| 35 | $0023 | PTIMOT | ||
| 36,37 | $0024,$0025 | ICBALZ,ICBAHZ | ||
| 38,39 | $0026,$0027 | ICPTLZ,ICPTHZ | ||
| 40,41 | $0028,$0029 | ICBLLZ,ICBLHZ | ||
| 42 | $002A | ICAX1Z | ||
| 43 | $002B | ICAX2Z | ||
| 44,45 | $002C,$002D | ICAX3Z,ICAX4Z | ||
| 46 | $002E | ICAX5Z | ||
| 47 | $002F | ICAX6Z | ||
| 48 | $0030 | STATUS | ||
| 49 | $0031 | CHKSUM | ||
| 50,51 | $0032,$0033 | BUFRLO,BUFRHI | ||
| 52,53 | $0034,$0035 | BFENLO,BFENHI | ||
| 54 | $0036 | CRETRY | ||
| 55 | $0037 | DRETRY | ||
| 56 | $0038 | BUFRFL | ||
| 57 | $0039 | RECVDN | ||
| 58 | $003A | XMTDON | ||
| 59 | $003B | CHKSNT | ||
| 60 | $003C | NOCKSM | ||
| 61 | $003D | BPTR | ||
| 62 | $003E | FTYPE | ||
| 63 | $003F | FEOF | ||
| 64 | $0040 | FREQ | ||
| 65 | $0041 | SOUNDR | ||
| 66 | $0042 | CRITIC | ||
| 67-73 | $0043-$0049 | FMZSPG | ||
| 67,68 | $0043,$0044 | ZBUFP | ||
| 69,70 | $0045,$0046 | ZDRVA | ||
| 71,72 | $0047,$0048 | ZSBA | ||
| 73 | $0049 | ERRNO | ||
| 74 | $004A | CKEY | ||
| 75 | $004B | CASSBT | ||
| 76 | $004C | DSTAT | ||
| 77 | $004D | ATRACT | ||
| 78 | $004E | DRKMSK | ||
| 79 | $004F | COLRSH | ||
| 80 | $0050 | TEMP | ||
| 81 | $0051 | HOLD1 | ||
| 82 | $0052 | LMARGN | ||
| 83 | $0053 | RMARGN | ||
| 84 | $0054 | ROWCRS | ||
| 85,86 | $0055,$0056 | COLCRS | ||
| 87 | $0057 | DINDEX | ||
| 88,89 | $0058,$0059 | SAVMSC | ||
| 90 | $005A | OLDROW | ||
| 91,92 | $005B,$005C | OLDCOL | ||
| 93 | $005D | OLDCHR | ||
| 94,95 | $005E,$005F | OLDADR | ||
| 96 | $0060 | NEWROW | ||
| 97,98 | $0061,$0062 | NEWCOL | ||
| 99 | $0063 | LOGCOL | ||
| 100,101 | $0064;$0065 | ADRESS | ||
| 102,103 | $0066,$0067 | MLTTMP | ||
| 104,105 | $0068,$0069 | SAVADR | ||
| 106 | $006A | RAMTOP | ||
| 107 | $006B | BUFCNT | ||
| 108,109 | $006C,$006D | BUFSTR | ||
| 110 | $006E | BITMSK | ||
| 111 | $006F | SHFAMT | ||
| 112,113 | $0070,$0071 | ROWAC | ||
| 114,115 | $0072,$0073 | COLAC | ||
| 116,117 | $0074,$0075 | ENDPT | ||
| 118 | $0076 | DELTAR | ||
| 119,120 | $0077,$0078 | DELTAC | ||
| 121 | $0079 | ROWINC | ||
| 122 | $007A | COLINC | ||
| 123 | $007B | SWPFLG | ||
| 124 | $007C | HOLDCH | ||
| 125 | $007D | INSDAT | ||
| 126,127 | $007E,$007F | COUNTR | ||
| 128,129 | $0080,$0081 | LOMEM | ||
| 130,131 | $0082,$0083 | VNTP | ||
| 132,133 | $0084,$0085 | VNTD | ||
| 134,135 | $0086,$0087 | VVTP | ||
| 136,137 | $0088,$0089 | STMTAB | ||
| 138,139 | $008A,$008B | STMCUR | ||
| 140,141 | $008C,$008D | STARP | ||
| 142,143 | $008E,$008F | RUNSTK | ||
| 144,145 | $0090,$0091 | MEMTOP | ||
| 146-202 | $0092-$00CA | reserved for BASIC ROM | ||
| 195 | $00C3 | ERRSAVE | ||
| 201 | $00C9 | PTABW | ||
| 203-207 | $00CB-$00CF | unused by BASIC and ASSEMBLER | ||
| 208,209 | $00D0,$00D1 | unused by BASIC | ||
| 210,211 | $00D2,$00D3 | reserved for BASIC or cartridge use | ||
| 212-217 | $00D4-$00D9 | FR0 | ||
| 218-223 | $00D1-$00DF | FRE | ||
| 224-229 | $00E0-$00E5 | FR1 | ||
| 230-235 | $00E6-$00EB | FR2 | ||
| 236 | $00EC | FRX | ||
| 237 | $00ED | EEXP | ||
| 238 | $00EE | NSIGN | ||
| 239 | $00EF | ESIGN | ||
| 240 | $00F0 | FCHRFLG | ||
| 241 | $00F1 | DIGRT | ||
| 242 | $00F2 | CIX | ||
| 243,244 | $00F3,$00F4 | INBUFF | ||
| 245,246 | $00F5,$00F6 | ZTEMP1 | ||
| 247,248 | $00F7,$00F8 | ZTEMP4 | ||
| 249,250 | $00F9,$00FA | ZTEMP3 | ||
| 251 | $00FB | RADFLG | ||
| 252,253 | $00FC,$00FD | FLPTR | ||
| 254,255 | $00FE,$00FF | FPTR2 |
Page 1
| adress | hexaddress | NAME | description | OS |
|---|---|---|---|---|
| 256-511 | $0100-$01FF | The OS/DOS/BASIC stack |
Page 2
| adress | hexaddress | NAME | description | OS |
|---|---|---|---|---|
| 512,513 | $0200,$0201 | VDSLST | ||
| 514,515 | VPRCED | |||
| 516,517 | VINTER | |||
| 518,519 | VBREAK | |||
| 520,521 | VKEYBD | |||
| 522,523 | VSERIN | |||
| 524,525 | VSEROR | |||
| 526,527 | VSEROC | |||
| 528,529 | VTIMR1 | |||
| 530,531 | VTIMR2 | |||
| 532,533 | VTIMR4 | |||
| 534,535 | VIMIRQ | |||
| 536,537 | CDTMV1 | |||
| 538,539 | CDTMV2 | |||
| 540,541 | CDTMV3 | |||
| 542,543 | CDTMV4 | |||
| 544,545 | CDTMV5 | |||
| 546,547 | VVBLKI | |||
| 548,549 | VVBLKD | |||
| 550,551 | CDTMA1 | |||
| 552,553 | CDTMA2 | |||
| 554 | CDTMF3 | |||
| 555 | SRTIMR | |||
| 556 | CDTMF4 | |||
| 557 | INTEMP | |||
| 558 | CDTMF5 | |||
| 559 | $022F | SDMCTL | Schattenregister zu DMACTL | |
| 560,561 | $0230,$0231 | SDLSTL,SDLSTH | ||
| 562 | $0233 | SSKCTL | ||
| 563 | $0233 | SPARE | ||
| 564 | $0234 | LPENH | ||
| 565 | $0235 | LPENV | ||
| 566,567 | $0236,$0237 | BRKKEY | Break key Interrupt vector | OS B |
| 568,569 | $0238,$0239 | two spare bytes | ||
| 570 | $023A | CDEVIC | ||
| 571 | $023B | CCOMND | ||
| 572 | $023C | CAUX1 | ||
| 573 | $023D | CAUX2 | ||
| 574 | $023E | TEMP | ||
| 575 | $023F | ERRFLG | ||
| 576 | $0240 | DFLAGS | ||
| 577 | $0241 | DESECT | ||
| 578,579 | $0242,$0243 | BOOTAD | ||
| 580 | $0244 | COLDST | ||
| 581 | $0245 | spare | ||
| 582 | $0246 | DSKTIM | ||
| 583-622 | $0247-$026E | LINBUF | ||
| 623 | $026F | GPRIOR | ||
| 624 | $0270 | PADDL0 | ||
| 625 | $0271 | PADDL1 | ||
| 626 | $0272 | PADDL2 | ||
| 627 | $0273 | PADDL3 | ||
| 628 | $0274 | PADDL4 | ||
| 629 | $0275 | PADDL5 | ||
| 630 | $0276 | PADDL6 | ||
| 631 | $0277 | PADDL7 | ||
| 632 | $0278 | STICK0 | ||
| 633 | $0279 | STICK1 | ||
| 634 | $027A | STICK2 | ||
| 635 | $027B | STICK3 | ||
| 636 | $027C | PTRIG0 | ||
| 637 | $027D | PTRIG1 | ||
| 638 | $027E | PTRIG2 | ||
| 639 | $027F | PTRIG3 | ||
| 640 | $0280 | PTRIG4 | ||
| 641 | $0281 | PTRIG5 | ||
| 642 | $0282 | PTRIG6 | ||
| 643 | $0283 | PTRIG7 | ||
| 644 | $0284 | STRIG0 | ||
| 645 | $0285 | STRIG1 | ||
| 646 | $0286 | STRIG2 | ||
| 647 | $0287 | STRIG3 | ||
| 648 | $0288 | CSTAT | ||
| 649 | $0289 | WMODE | ||
| 650 | $028A | BLIM | ||
| 651-655 | $028B-$028F | unused | ||
| 656 | $0290 | TXTROW | ||
| 657,658 | $0291,$0292 | TXTCOL | ||
| 659 | $0293 | TINDEX | ||
| 660,661 | $0294,$0295 | TXTMSC | ||
| 662-667 | $0296-$029B | TXTOLD | ||
| 668 | $029C | TMPX1 | ||
| 669 | $029D | HOLD3 | ||
| 670 | $029E | SUBTMP | ||
| 671 | $029F | HOLD2 | ||
| 672 | $02A0 | DMASK | ||
| 673 | $02A1 | TMPLBT | ||
| 674 | $02A2 | ESCFLG | ||
| 675-689 | $02A3-$02B1 | TABMAP | ||
| 690-693 | $02B2-$02B5 | LOGMAP | ||
| 694 | $02B6 | INVFLG | ||
| 695 | $02B7 | FILFLG | ||
| 696 | $02B8 | TMPROW | ||
| 697,698 | $02B9,$02BA | TMPCOL | ||
| 699 | $02BB | SCRFLG | ||
| 700 | $02BC | HOLD4 | ||
| 701 | $02BD | HOLD5 | ||
| 702 | $02BE | SHFLOK | ||
| 703 | $02BF | BOTSCR | ||
| 704 | $02C0 | PCOLR0 | Color of Player 0 and Missile 0 | both |
| 705 | $02C1 | PCOLR1 | Color of Player 1 and Missile 1 | both |
| 706 | $02C2 | PCOLR2 | Color of Player 3 and Missile 2 | both |
| 707 | $02C3 | PCOLR3 | Color of Player 3 and Missile 3 | both |
| 708 | $02C4 | COLOR0 | Color Register 0 | both |
| 709 | $02C5 | COLOR1 | Color Register 1 | both |
| 710 | $02C6 | COLOR2 | Color Register 2 | both |
| 711 | $02C7 | COLOR3 | Color Register 3 | both |
| 712 | $02C8 | COLOR4 | Color Register 4 | both |
| 732 | $02FC | HELPFG | both | |
| 736,737 | $02E0,$02E1 | RUNAD | both | |
| 752 | $02F0 | CRSINH | Sichtbarkeit Cursor | both |
| 756 | $02F4 | CHBAS | Zeichensatzadresse | both |
| 762 | $02FA | CHAR | both | |
| 763 | $02FB | ATACHR | both | |
| 764 | $02FC | CH | both | |
| 765 | $02FD | FILDAT | both | |
| 766 | $02FE | DSPFLG | both | |
| 767 | $02FF | SSFLAG | both |
Page 3
| adress | hexaddress | NAME | description | OS |
|---|---|---|---|---|
| 768 | $0300 | DDEVIC | both | |
| 769 | $0301 | DUNIT | both | |
| 770 | $0302 | DCOMND | both | |
| 771 | $0303 | DSTATS | both | |
| 772,773 | $0304,$0305 | DBUFLO,DBUFHI | both | |
| 774 | $0306 | DTIMLO | both | |
| 775 | $0307 | DUNUSE | both | |
| 776,777 | $0308,$0309 | DBYTLO,DBYTHI | both | |
| 778,779 | $030A,$030B | DAUX1,DAUX2 | both | |
| 780,781 | $030C,$030D | TIMER1 | both | |
| 782 | $0D30E | ADDCOR | both | |
| 783 | $030F | CASFLG | both | |
| 784,785 | $0310,$0311 | TIMER2 | both | |
| 786,787 | $0312,$0313 | TEMP1 | both | |
| 788 | $0314 | TEMP2 | both | |
| 789 | $0315 | TEMP3 | both | |
| 790 | $0316 | SAVIO | both | |
| 791 | $0317 | TIMFLG | both | |
| 792 | $0318 | STACKP | both | |
| 793 | $0319 | TSTAT | both | |
| 794-831 | $031A-$033F | HATABS | 38 Bytes Handler Address Table | both |
| 832-847 | $0340-$034F | IOCB0 | both | |
| 848-863 | $0350-$035F | IOCB1 | both | |
| 864-879 | $0360-$036F | IOCB2 | both | |
| 880-895 | $0370-$037F | IOCB3 | both | |
| 896-911 | $0380-$038F | IOCB4 | both | |
| 912-927 | $0390-$039F | IOCB5 | both | |
| 928-943 | $03A0-$03AF | IOCB6 | both | |
| 944-959 | $03B0-$03BF | IOCB7 | both | |
| 960-999 | $03C0-$03E7 | PRNBUF | both | |
| 1000-1020 | $03E8-$03FC | reserved buffer | both | |
| 1021-1151 | $03FD-$047F | CASBUF | both | |
Page 6
| adress | hexaddress | NAME | description | OS |
|---|---|---|---|---|
| 1536-1791 | $0600-$06FF | "Page 6" free for user | both | |
GTIA (CTIA)
| adress | hexaddress | NAME | description | OS |
|---|---|---|---|---|
| 53248 | $D000 | HPOSP0,M0PF | both | |
| 53249 | $D001 | HPOSP1,M1PF | both | |
| 53250 | $D002 | HPOSP2,M2PF | both | |
| 53251 | $D003 | HPOSP3,M3PF | both | |
| 53252 | $D004 | HPOSM0,P0PF | both | |
| 53253 | $D005 | HPOSM1,P1PF | both | |
| 53254 | $D006 | HPOSM2,P2PF | both | |
| 53255 | $D007 | HPOSM3,P3PF | both | |
| 53256 | $D008 | SIZEP0,M0PL | both | |
| 53257 | $D009 | SIZEP1,M1PL | both | |
| 53258 | $D00A | SIZEP2,M2PL | both | |
| 53259 | $D00B | SIZEP3,M3PL | both | |
| 53260 | $D00C | SIZEM,P0PL | both | |
| 53261 | $D00D | GRAFP0,P1PL | both | |
| 53262 | $D00E | GRAFP1,P2PL | both | |
| 53263 | $D00F | GRAFP2,P3PL | both | |
| 53264 | $D010 | GRAFP3,TRIG0 | both | |
| 53265 | $D011 | GRAFM,TRIG1 | both | |
| 53266 | $D012 | COLPM0,TRIG2 | both | |
| 53267 | $D013 | COLPM1,TRIG3 | both | |
| 53268 | $D014 | COLPM2,PAL | both | |
| 53269 | $D015 | COLPM3 | both | |
| 53270 | $D016 | COLPF0 | both | |
| 53271 | $D017 | COLPF1 | both | |
| 53272 | $D018 | COLPF2 | both | |
| 53273 | $D019 | COLPF3 | both | |
| 53274 | $D01A | COLBAK | both | |
| 53275 | $D01B | VDELAY | both | |
| 53276 | $D01C | VDELAY | both | |
| 53277 | $D01D | GRACTL | both | |
| 53278 | $D01E | HITCLR | both | |
| 53279 | $D01F | CONSOL | both | |
| 53280-53503 | $D020-$D0FF | repeats 53248-53279, do not use | ||
| 53504-53759 | $D100-$D1FF | unused and unusable |
POKEY
| adress | hexaddress | NAME | description | OS |
|---|---|---|---|---|
| 53760 | $D200 | AUDF1,POT0 | ||
| 53761 | $D201 | AUDC1,POT1 | ||
| 53762 | $D202 | AUDF2,POT2 | ||
| 53763 | $D203 | AUDC2,POT3 | ||
| 53764 | $D204 | AUDF3,POT4 | ||
| 53765 | $D205 | AUDC3,POT5 | ||
| 53766 | $D206 | AUDF4,POT6 | ||
| 53767 | $D207 | AUDC4,POT7 | ||
| 53768 | $D208 | AUDCTL,ALLPOT | ||
| 53769 | $D209 | STIMER,KBCODE | ||
| 53770 | $D20A | SKREST,RANDOM | ||
| 53771 | $D20B | POTGO,RANDOM | ||
| 53772 | $D20C | unused | ||
| 53773 | $D20D | SEROUT,SERIN | ||
| 53774 | $D20E | IRQEN,IRQST | ||
| 53775 | $D20F | SKCTL,SKSTAT | ||
| 53776-54015 | $D210-$D2FF | repeats 53760-53775, no special use |
PIA
| adress | hexaddress | NAME | description | OS |
|---|---|---|---|---|
| 54016 | $D300 | PORTA | ||
| 54017 | $D301 | PORTB | ||
| 54018 | $D302 | PACTL | ||
| 54019 | $D303 | PBCTL | ||
| 54020-54271 | $D304-$D3FF | repeats 54016-54019, no special use |
ANTIC
| adress | hexaddress | NAME | description | OS |
|---|---|---|---|---|
| 54272 | $D400 | DMACTL | ||
| 54273 | $D401 | CHACTL | ||
| 54274,54275 | $D402,$D403 | DLISTL,DLISTH | ||
| 54276 | $D404 | HSCROL | ||
| 54277 | $D405 | VSCROL | ||
| 54278 | $D406 | unused | ||
| 54279 | $D407 | PMBASE | ||
| 54280 | $D408 | unused | ||
| 54281 | $D409 | CHBASE | ||
| 54282 | $D40A | WSYNC | ||
| 54283 | $D40B | VCOUNT | ||
| 54284 | $D40C | PENH | ||
| 54285 | $D40D | PENV | ||
| 54286 | $D40E | NMIEN | ||
| 54287 | $D40F | NMIRES,NMIST | ||
| 54288-54303 | $D410-$D41F | repeats 54272-54287 |
ROM
| adress | hexaddress | NAME | description | OS |
|---|---|---|---|---|
| 58400 | $E420 | KEYBDV | Jump Table for Keyboard driver "K:" | OSA/OSB/XL |