2000-05-28 13:40:48 +00:00
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;
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2002-05-26 09:08:52 +00:00
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; Zeropage and I/O definitions for the CBM 610
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2000-05-28 13:40:48 +00:00
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;
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2002-05-26 09:08:52 +00:00
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; Taken from a kernal disassembly done by myself in 1987.
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;
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; Ullrich von Bassewitz, 28.09.1998
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2000-05-28 13:40:48 +00:00
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; ---------------------------------------------------------------------------
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2002-05-26 09:08:52 +00:00
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; Zeropage stuff
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ExecReg = $0000
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IndReg = $0001
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; Up to $20 and $60-8F used by runtime and fixed values
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; -----------------------------------
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KbdScanBuf = $20 ; Intermediate for keyboard scan
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; RS232 stuff
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RecvHead = $21 ; Head of receive buffer
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RecvTail = $22 ; Tail of receive buffer
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RecvFreeCnt = $23 ; Number of bytes in receive buffer
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SendHead = $24 ; Head of send buffer
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SendTail = $25 ; Tail of send buffer
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SendFreeCnt = $26 ; Number of bytes free in send buffer
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FileNameAdrLo = $90
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FileNameAdrHi = $91
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FileNameAdrSeg = $92
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SaveAdrLow = $93
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SaveAdrHi = $94
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SaveAdrSeg = $95
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EndAdrLow = $96
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EndAdrHi = $97
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EndAdrSeg = $98
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StartAdrLow = $99
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StartAdrHi = $9A
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StartAdrSeg = $9B
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Status = $9C
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FileNameLen = $9D
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LogicalAdr = $9E
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FirstAdr = $9F
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SecondAdr = $A0
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DefInpDev = $A1
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DefOutDev = $A2
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TapeBufPtr = $A3
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TapeBufPtrSeg = $A5
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rs232BufPtr = $A6
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rs232BufPtrSeg = $A8
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StopKeyFlag = $A9
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CTemp = $AA
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snsw1 = $AB
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SegChgPtr = $AC
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PChighSave = $AE
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PClowSave = $AF
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SRSave = $B0
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ACSave = $B1
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XRSave = $B2
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YRSave = $B3
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SPSave = $B4
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IndSegSave = $B5
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IRQSaveHi = $B7
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IRQSaveLo = $B8
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Adr1 = $B9
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Adr2 = $BB
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MoniCntr = $BD
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MoniTmp = $BE
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MoniDevNr = $BF
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PgmKeyBuf = $C0
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PgmKeyPtr = $C2
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sedsal = $C4
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sedeal = $C6
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CharPtr = $C8
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CURS_Y = $CA
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CURS_X = $CB
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GrafMode = $CC
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LastIndex = $CD
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LastLine = $CE
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LastCol = $CF
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crsw = $D0
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KeyIndex = $D1
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QuoteSw = $D2
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Insrt = $D3
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Config = $D4
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LastLinePos = $D5
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PgmKeyIndex = $D6
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RepeatCount = $D7
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RepeatDelay = $D8
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sedt1 = $D9 ; Temp
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sedt2 = $DA ; Temp, frequently used
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PrtData = $DB
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ScreenTop = $DC
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ScreenBot = $DD
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ScreenLeft = $DE
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ScreenRight = $DF
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ModKey = $E0
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NorKey = $E1
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BitTable = $E2
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2000-05-28 13:40:48 +00:00
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; ---------------------------------------------------------------------------
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2002-05-26 09:08:52 +00:00
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; Page 3 variables
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;
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; system ram vectors
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;
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IRQVec = $0300
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BRKVec = $0302
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NMIVec = $0304
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openVec = $0306
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closeVec = $0308
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chkinVec = $030A
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ckoutVec = $030C
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clrchVec = $030E
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basinVec = $0310
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bsoutVec = $0312
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stopVec = $0314
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getinVec = $0316
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clallVec = $0318
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loadVec = $031A
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saveVec = $031C
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usrcmd = $031E
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escvec = $0320
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ctrlvec = $0322
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secndVec = $0324
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tksaVec = $0326
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acptrVec = $0328
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cioutVec = $032A
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untlkVec = $032C
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unlsnVec = $032E
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listnVec = $0330
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talkVec = $0332
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;
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;
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;
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LogicalAdrTable = $0334
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FirstAdrTable = $033E
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SecondAdrTable = $0348
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SysMemBot = $0352
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SysMemTop = $0355
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UsrMemBot = $0358
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UsrMemTop = $035B
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TimOut = $035E
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VerifyFlag = $035F
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DevTabIndex = $0360
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MsgFlag = $0361
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CassBufPtr = $0362
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t1 = $0363
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t2 = $0364
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XSave = $0365
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SaveX = $0366
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SaveXt = $0367
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temp = $0368
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alarm = $0369
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TapeVec = $036A
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LoadStAdr = $036F
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CassMotFlag = $0375
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m6551Ctrl = $0376
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m6551Cmd = $0377
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rs232status = $037A
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dcddsr = $037B
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rs232head = $037C
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rs232tail = $037D
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PgmKeyEnd = $0380
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PgmKeySeg = $0382
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PgmKeySize = $0383
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2002-12-19 20:29:27 +00:00
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RVS = $0397
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2002-05-26 09:08:52 +00:00
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linetmp = $0398
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LastPrtChar = $0399
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InsertFlag = $039A
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ScrollFlag = $039B
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FktTemp = $039C
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PgmKeyIdx = $039D
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LogScrollFlag = $039E
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BellMode = $039F ; Bell on/off 00 = an
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SegSave = $03A0
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TabStopTable = $03A1 ; 80 bits for tabstops
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KeyBuf = $03AB ; Keyboard buffer
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FUNKEY_VEC = $03B5 ; Vector for function key handline
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FunKeyTmp = $03B7
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sedt3 = $03B9
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MoniSegSave = $03f0
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wstvec = $03F8
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WstFlag = $03FA ; Warm start flag
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2003-04-09 19:34:57 +00:00
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; ---------------------------------------------------------------------------
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; Screen size
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XSIZE = 80
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YSIZE = 25
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2002-05-26 09:08:52 +00:00
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; ---------------------------------------------------------------------------
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; I/O definitions
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; I/O $d800: CRTC 6545
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2000-05-28 13:40:48 +00:00
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CRTC = $D800
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CRTC_ADDR = $00
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CRTC_DATA = $01
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2002-05-26 09:08:52 +00:00
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; I/O $da00: SID 6581
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; sid = $da00
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Osc1 = $00
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Osc2 = $07
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Osc3 = $0e
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FreqLo = $00
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FreqHi = $01
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PulseF = $02
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PulseC = $03
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OscCtl = $04
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AtkDcy = $05
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SusRel = $06
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FiCtlLo = $15
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FiCtlHi = $16
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Resonance = $17
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Volume = $18
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PotX = $19
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PotY = $1A
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Random = $1B
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Env3 = $1C
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; I/O $db00: CIA 6526 Inter Process Communication
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; IPCcia = $db00
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PortA = $00
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PortB = $01
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DDRA = $02
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DDRB = $03
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TimALo = $04
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TimAHi = $05
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TimBLo = $06
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TimBHi = $07
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TOD10 = $08
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TODsec = $09
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TODmin = $0A
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TODhour = $0B
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SerDataReg = $0C
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IntCtrReg = $0D
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CtrlA = $0E
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CtrlB = $0F
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; I/O $dc00: CIA 6526
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; cia = $dc00
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; I/O $dd00: ACIA 6551
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; acia = $dd00
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ADataReg = $00
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AStatusReg = $01
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ACmdReg = $02
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ACtrlReg = $03
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; I/O $de00: Triport #1 6525
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; tpi1 = $de00
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tpiPortA = $00
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tpiPortB = $01
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tpiPortC = $02
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tpiIntLatch = $02
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tpiDDRA = $03
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tpiDDRB = $04
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tpiDDRC = $05
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tpiIntMask = $05
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tpiCtrlReg = $06
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tpiActIntReg = $07
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; I/O $df00: Triport #2 6525
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; tpi2 = $df00
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