git.sur5r.net Git - cc65/blob - libsrc/cbm610/cbm610.inc

   1 ;
   2 ; Zeropage and I/O definitions for the CBM 610
   3 ;
   4 ; Taken from a kernal disassembly done by myself in 1987.
   5 ;
   6 ; Ullrich von Bassewitz, 28.09.1998
   7
   8
   9 ; ---------------------------------------------------------------------------
  10 ; Zeropage stuff
  11
  12 ExecReg         = $0000
  13 IndReg          = $0001
  14
  15 ; Up to $20 and $60-8F used by runtime and fixed values
  16 ; -----------------------------------
  17
  18 KbdScanBuf      = $20           ; Intermediate for keyboard scan
  19 ; RS232 stuff
  20 RecvHead        = $21           ; Head of receive buffer
  21 RecvTail        = $22           ; Tail of receive buffer
  22 RecvFreeCnt     = $23           ; Number of bytes in receive buffer
  23 SendHead        = $24           ; Head of send buffer
  24 SendTail        = $25           ; Tail of send buffer
  25 SendFreeCnt     = $26           ; Number of bytes free in send buffer
  26
  27 FileNameAdrLo   = $90
  28 FileNameAdrHi   = $91
  29 FileNameAdrSeg  = $92
  30 SaveAdrLow      = $93
  31 SaveAdrHi       = $94
  32 SaveAdrSeg      = $95
  33 EndAdrLow       = $96
  34 EndAdrHi        = $97
  35 EndAdrSeg       = $98
  36 StartAdrLow     = $99
  37 StartAdrHi      = $9A
  38 StartAdrSeg     = $9B
  39 Status          = $9C
  40 FileNameLen     = $9D
  41 LogicalAdr      = $9E
  42 FirstAdr        = $9F
  43 SecondAdr       = $A0
  44 DefInpDev       = $A1
  45 DefOutDev       = $A2
  46 TapeBufPtr      = $A3
  47 TapeBufPtrSeg   = $A5
  48 rs232BufPtr     = $A6
  49 rs232BufPtrSeg  = $A8
  50 StopKeyFlag     = $A9
  51 CTemp           = $AA
  52 snsw1           = $AB
  53 SegChgPtr       = $AC
  54 PChighSave      = $AE
  55 PClowSave       = $AF
  56 SRSave          = $B0
  57 ACSave          = $B1
  58 XRSave          = $B2
  59 YRSave          = $B3
  60 SPSave          = $B4
  61 IndSegSave      = $B5
  62 IRQSaveHi       = $B7
  63 IRQSaveLo       = $B8
  64 Adr1            = $B9
  65 Adr2            = $BB
  66 MoniCntr        = $BD
  67 MoniTmp         = $BE
  68 MoniDevNr       = $BF
  69 PgmKeyBuf       = $C0
  70 PgmKeyPtr       = $C2
  71 sedsal          = $C4
  72 sedeal          = $C6
  73 CharPtr         = $C8
  74 CURS_Y          = $CA
  75 CURS_X          = $CB
  76 GrafMode        = $CC
  77 LastIndex       = $CD
  78 LastLine        = $CE
  79 LastCol         = $CF
  80 crsw            = $D0
  81 KeyIndex        = $D1
  82 QuoteSw         = $D2
  83 Insrt           = $D3
  84 Config          = $D4
  85 LastLinePos     = $D5
  86 PgmKeyIndex     = $D6
  87 RepeatCount     = $D7
  88 RepeatDelay     = $D8
  89 sedt1           = $D9           ; Temp
  90 sedt2           = $DA           ; Temp, frequently used
  91 PrtData         = $DB
  92 ScreenTop       = $DC
  93 ScreenBot       = $DD
  94 ScreenLeft      = $DE
  95 ScreenRight     = $DF
  96 ModKey          = $E0
  97 NorKey          = $E1
  98 BitTable        = $E2
  99
 100
 101 ; ---------------------------------------------------------------------------
 102 ; Page 3 variables
 103
 104 ;
 105 ; system ram vectors
 106 ;
 107
 108 IRQVec               = $0300
 109 BRKVec               = $0302
 110 NMIVec               = $0304
 111 openVec              = $0306
 112 closeVec             = $0308
 113 chkinVec             = $030A
 114 ckoutVec             = $030C
 115 clrchVec             = $030E
 116 basinVec             = $0310
 117 bsoutVec             = $0312
 118 stopVec              = $0314
 119 getinVec             = $0316
 120 clallVec             = $0318
 121 loadVec              = $031A
 122 saveVec              = $031C
 123 usrcmd               = $031E
 124 escvec               = $0320
 125 ctrlvec              = $0322
 126 secndVec             = $0324
 127 tksaVec              = $0326
 128 acptrVec             = $0328
 129 cioutVec             = $032A
 130 untlkVec             = $032C
 131 unlsnVec             = $032E
 132 listnVec             = $0330
 133 talkVec              = $0332
 134
 135 ;
 136 ;
 137 ;
 138
 139 LogicalAdrTable      = $0334
 140 FirstAdrTable        = $033E
 141 SecondAdrTable       = $0348
 142 SysMemBot            = $0352
 143 SysMemTop            = $0355
 144 UsrMemBot            = $0358
 145 UsrMemTop            = $035B
 146 TimOut               = $035E
 147 VerifyFlag           = $035F
 148 DevTabIndex          = $0360
 149 MsgFlag              = $0361
 150 CassBufPtr           = $0362
 151 t1                   = $0363
 152 t2                   = $0364
 153 XSave                = $0365
 154 SaveX                = $0366
 155 SaveXt               = $0367
 156 temp                 = $0368
 157 alarm                = $0369
 158 TapeVec              = $036A
 159 LoadStAdr            = $036F
 160 CassMotFlag          = $0375
 161 m6551Ctrl            = $0376
 162 m6551Cmd             = $0377
 163 rs232status          = $037A
 164 dcddsr               = $037B
 165 rs232head            = $037C
 166 rs232tail            = $037D
 167 PgmKeyEnd            = $0380
 168 PgmKeySeg            = $0382
 169 PgmKeySize           = $0383
 170 RVS                  = $0397
 171 linetmp              = $0398
 172 LastPrtChar          = $0399
 173 InsertFlag           = $039A
 174 ScrollFlag           = $039B
 175 FktTemp              = $039C
 176 PgmKeyIdx            = $039D
 177 LogScrollFlag        = $039E
 178 BellMode             = $039F    ; Bell on/off 00 = an
 179 SegSave              = $03A0
 180 TabStopTable         = $03A1    ; 80 bits for tabstops
 181 KeyBuf               = $03AB    ; Keyboard buffer
 182 FUNKEY_VEC           = $03B5    ; Vector for function key handline
 183 FunKeyTmp            = $03B7
 184 sedt3                = $03B9
 185 MoniSegSave          = $03f0
 186 wstvec               = $03F8
 187 WstFlag              = $03FA    ; Warm start flag
 188
 189
 190 ; ---------------------------------------------------------------------------
 191 ; Screen size
 192
 193 XSIZE           = 80
 194 YSIZE           = 25
 195
 196 ; ---------------------------------------------------------------------------
 197 ; I/O definitions
 198
 199
 200 ; I/O  $d800: CRTC 6545
 201
 202 CRTC            = $D800
 203 CRTC_ADDR       = $00
 204 CRTC_DATA       = $01
 205
 206
 207 ; I/O  $da00: SID 6581
 208
 209 ;       sid             =       $da00
 210
 211 Osc1            =       $00
 212 Osc2            =       $07
 213 Osc3            =       $0e
 214
 215 FreqLo          =       $00
 216 FreqHi          =       $01
 217 PulseF          =       $02
 218 PulseC          =       $03
 219 OscCtl          =       $04
 220 AtkDcy          =       $05
 221 SusRel          =       $06
 222
 223 FiCtlLo         =       $15
 224 FiCtlHi         =       $16
 225 Resonance       =       $17
 226 Volume          =       $18
 227 PotX            =       $19
 228 PotY            =       $1A
 229 Random          =       $1B
 230 Env3            =       $1C
 231
 232
 233
 234 ; I/O  $db00: CIA 6526 Inter Process Communication
 235
 236 ;       IPCcia          =       $db00
 237
 238 PortA           =       $00
 239 PortB           =       $01
 240 DDRA            =       $02
 241 DDRB            =       $03
 242 TimALo          =       $04
 243 TimAHi          =       $05
 244 TimBLo          =       $06
 245 TimBHi          =       $07
 246 TOD10           =       $08
 247 TODsec          =       $09
 248 TODmin          =       $0A
 249 TODhour         =       $0B
 250 SerDataReg      =       $0C
 251 IntCtrReg       =       $0D
 252 CtrlA           =       $0E
 253 CtrlB           =       $0F
 254
 255
 256
 257 ; I/O  $dc00: CIA 6526
 258
 259 ;       cia             =       $dc00
 260
 261
 262
 263 ; I/O  $dd00: ACIA 6551
 264
 265 ;       acia            =       $dd00
 266
 267 ADataReg        =       $00
 268 AStatusReg      =       $01
 269 ACmdReg         =       $02
 270 ACtrlReg        =       $03
 271
 272
 273
 274 ; I/O  $de00: Triport #1 6525
 275
 276 ;       tpi1            =       $de00
 277
 278 tpiPortA        =       $00
 279 tpiPortB        =       $01
 280 tpiPortC        =       $02
 281 tpiIntLatch     =       $02
 282 tpiDDRA         =       $03
 283 tpiDDRB         =       $04
 284 tpiDDRC         =       $05
 285 tpiIntMask      =       $05
 286 tpiCtrlReg      =       $06
 287 tpiActIntReg    =       $07
 288
 289
 290
 291 ; I/O  $df00: Triport #2 6525
 292
 293 ;       tpi2            =       $df00
 294
 295