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https://github.com/cc65/cc65.git
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101 lines
2.2 KiB
PHP
101 lines
2.2 KiB
PHP
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; Zero page variables for the CBM 610
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;
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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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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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