git.sur5r.net Git - cc65/blob - libsrc/cbm510/zeropage.inc

   1 ;
   2 ; Zero page variables for the CBM P500
   3 ;
   4 ; Taken from a kernal disassembly done by myself in 2000/2001.
   5 ;
   6 ; Ullrich von Bassewitz, 13.09.2001
   7
   8
   9 ExecReg         = $0000
  10 IndReg          = $0001
  11
  12 ; Up to $20 and $60-8F used by runtime and fixed values
  13 ; -----------------------------------
  14
  15 KbdScanBuf      = $20           ; Intermediate for keyboard scan
  16 ; RS232 stuff
  17 RecvHead        = $21           ; Head of receive buffer
  18 RecvTail        = $22           ; Tail of receive buffer
  19 RecvFreeCnt     = $23           ; Number of bytes in receive buffer
  20 SendHead        = $24           ; Head of send buffer
  21 SendTail        = $25           ; Tail of send buffer
  22 SendFreeCnt     = $26           ; Number of bytes free in send buffer
  23
  24 FileNameAdrLo   = $90
  25 FileNameAdrHi   = $91
  26 FileNameAdrSeg  = $92
  27 SaveAdrLow      = $93
  28 SaveAdrHi       = $94
  29 SaveAdrSeg      = $95
  30 EndAdrLow       = $96
  31 EndAdrHi        = $97
  32 EndAdrSeg       = $98
  33 StartAdrLow     = $99
  34 StartAdrHi      = $9A
  35 StartAdrSeg     = $9B
  36 Status          = $9C
  37 FileNameLen     = $9D
  38 LogicalAdr      = $9E
  39 FirstAdr        = $9F
  40 SecondAdr       = $A0
  41 DefInpDev       = $A1
  42 DefOutDev       = $A2
  43 TapeBufPtr      = $A3
  44 TapeBufPtrSeg   = $A5
  45 rs232BufPtr     = $A6
  46 rs232BufPtrSeg  = $A8
  47 StopKeyFlag     = $A9
  48 CTemp           = $AA
  49 snsw1           = $AB
  50 SegChgPtr       = $AC
  51 PChighSave      = $AE
  52 PClowSave       = $AF
  53 SRSave          = $B0
  54 ACSave          = $B1
  55 XRSave          = $B2
  56 YRSave          = $B3
  57 SPSave          = $B4
  58 IndSegSave      = $B5
  59 IRQSaveHi       = $B7
  60 IRQSaveLo       = $B8
  61 Adr1            = $B9
  62 Adr2            = $BB
  63 MoniCntr        = $BD
  64 MoniTmp         = $BE
  65 MoniDevNr       = $BF
  66 PgmKeyBuf       = $C0
  67 PgmKeyPtr       = $C2
  68 sedsal          = $C4
  69 sedeal          = $C6
  70 SCREEN_PTR      = $C8
  71 CURS_Y          = $CA
  72 CURS_X          = $CB
  73 GrafMode        = $CC
  74 LastIndex       = $CD
  75 LastLine        = $CE
  76 LastCol         = $CF
  77 crsw            = $D0
  78 KeyIndex        = $D1
  79 QuoteSw         = $D2
  80 Insrt           = $D3
  81 Config          = $D4
  82 LastLinePos     = $D5
  83 PgmKeyIndex     = $D6
  84 RepeatCount     = $D7
  85 RepeatDelay     = $D8
  86 sedt1           = $D9           ; Temp
  87 sedt2           = $DA           ; Temp, frequently used
  88 PrtData         = $DB
  89 ScreenTop       = $DC
  90 ScreenBot       = $DD
  91 ScreenLeft      = $DE
  92 ScreenRight     = $DF
  93 ModKey          = $E0
  94 NorKey          = $E1
  95 BitTable        = $E2
  96 CURS_FLAG       = $E6           ; 1 = no cursor
  97 CURS_BLINK      = $E7           ; cursor blink counter
  98 CRAM_PTR        = $E8
  99 TempColor       = $EA
 100 CURS_STATE      = $EB           ; Cursor blink state
 101 CHARCOLOR       = $EC
 102 CURS_COLOR      = $ED           ; Color behind cursor
 103 OutCharTmp      = $EE
 104 ScreenSeq       = $EF           ; Segment of video RAM
 105