| 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 | ||
| 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 | both | |
| 710 | $02C6 | COLOR2 | both | |
| 711 | $02C7 | COLOR3 | both | |
| 712 | $02C8 | COLOR4 | both | |
| 732 | $02FC | HELPFG | both | |
| 736,737 | $02E0,$02E1 | RUNAD | 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 |
| 768 | $0300F | 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 | |
| 1536-1791 | $0600-$06FF | Page 6 | both | |
| 53279 | $D01F | CONSOL | both |
