git.sur5r.net Git - cc65/blob - libsrc/c64/c64.inc

   1 ;
   2 ; C64 generic definitions. Stolen from Elite128
   3 ;
   4
   5
   6 ; ---------------------------------------------------------------------------
   7 ; Zero page, Commodore stuff
   8
   9 ST              = $90           ; IEC status byte
  10
  11 TIME            = $A0           ; 60 HZ clock
  12 FNAM_LEN        = $B7           ; Length of filename
  13 SECADR          = $B9           ; Secondary address
  14 DEVNUM          = $BA           ; Device number
  15 KEY_COUNT       = $C6           ; Number of keys in input buffer
  16 CURS_FLAG       = $CC           ; 1 = cursor off
  17 CURS_BLINK      = $CD           ; Blink counter
  18 CURS_CHAR       = $CE           ; Character under the cursor
  19 CURS_COLOR      = $287          ; Color under the cursor
  20 CURS_STATE      = $CF           ; Cursor blink state
  21 SCREEN_PTR      = $D1           ; Pointer to current char in text screen
  22 CURS_X          = $D3           ; Cursor column
  23 CURS_Y          = $D6           ; Cursor row
  24 CRAM_PTR        = $F3           ; Pointer to current char in color RAM
  25
  26 CHARCOLOR       = $286
  27 PALFLAG         = $2A6          ; $01 = PAL, $00 = NTSC
  28
  29
  30 ; ---------------------------------------------------------------------------
  31 ; Kernal routines
  32
  33 ; Direct entries
  34 CLRSCR          = $E544
  35 KBDREAD         = $E5B4
  36 NAMED_OPEN      = $F3D5
  37 NAMED_CLOSE     = $F642
  38 PLOTCHAR        = $EA1C         ; Char in A, color in X
  39
  40 ; ---------------------------------------------------------------------------
  41 ; Vector and other locations
  42
  43 IRQVec          = $0314
  44 BRKVec          = $0316
  45 NMIVec          = $0318
  46
  47 ; ---------------------------------------------------------------------------
  48 ; I/O: VIC
  49
  50 VIC             = $D000
  51 VIC_SPR0_X      = $D000
  52 VIC_SPR0_Y      = $D001
  53 VIC_SPR1_X      = $D002
  54 VIC_SPR1_Y      = $D003
  55 VIC_SPR2_X      = $D004
  56 VIC_SPR2_Y      = $D005
  57 VIC_SPR3_X      = $D006
  58 VIC_SPR3_Y      = $D007
  59 VIC_SPR4_X      = $D008
  60 VIC_SPR4_Y      = $D009
  61 VIC_SPR5_X      = $D00A
  62 VIC_SPR5_Y      = $D00B
  63 VIC_SPR6_X      = $D00C
  64 VIC_SPR6_Y      = $D00D
  65 VIC_SPR7_X      = $D00E
  66 VIC_SPR7_Y      = $D00F
  67 VIC_SPR_HI_X    = $D010
  68 VIC_SPR_ENA     = $D015
  69 VIC_SPR_EXP_X   = $D017
  70 VIC_SPR_EXP_Y   = $D01D
  71 VIC_SPR_MCOLOR  = $D01C
  72 VIC_SPR_BG_PRIO = $D01B
  73
  74 VIC_SPR_MCOLOR0 = $D025
  75 VIC_SPR_MCOLOR1 = $D026
  76
  77 VIC_SPR0_COLOR  = $D027
  78 VIC_SPR1_COLOR  = $D028
  79 VIC_SPR2_COLOR  = $D029
  80 VIC_SPR3_COLOR  = $D02A
  81 VIC_SPR4_COLOR  = $D02B
  82 VIC_SPR5_COLOR  = $D02C
  83 VIC_SPR6_COLOR  = $D02D
  84 VIC_SPR7_COLOR  = $D02E
  85
  86 VIC_CTRL1       = $D011
  87 VIC_CTRL2       = $D016
  88
  89 VIC_HLINE       = $D012
  90
  91 VIC_VIDEO_ADR   = $D018
  92
  93 VIC_IRR         = $D019         ; Interrupt request register
  94 VIC_IMR         = $D01A         ; Interrupt mask register
  95
  96 VIC_BORDERCOLOR = $D020
  97 VIC_BG_COLOR0   = $D021
  98 VIC_BG_COLOR1   = $D022
  99 VIC_BG_COLOR2   = $D023
 100 VIC_BG_COLOR3   = $D024
 101
 102 ; 128 stuff:
 103 VIC_KBD_128     = $D02F         ; Extended kbd bits (visible in 64 mode)
 104 VIC_CLK_128     = $D030         ; Clock rate register (visible in 64 mode)
 105
 106
 107 ; ---------------------------------------------------------------------------
 108 ; I/O: SID
 109
 110 SID             = $D400
 111 SID_S1Lo        = $D400
 112 SID_S1Hi        = $D401
 113 SID_PB1Lo       = $D402
 114 SID_PB1Hi       = $D403
 115 SID_Ctl1        = $D404
 116 SID_AD1         = $D405
 117 SID_SUR1        = $D406
 118
 119 SID_S2Lo        = $D407
 120 SID_S2Hi        = $D408
 121 SID_PB2Lo       = $D409
 122 SID_PB2Hi       = $D40A
 123 SID_Ctl2        = $D40B
 124 SID_AD2         = $D40C
 125 SID_SUR2        = $D40D
 126
 127 SID_S3Lo        = $D40E
 128 SID_S3Hi        = $D40F
 129 SID_PB3Lo       = $D410
 130 SID_PB3Hi       = $D411
 131 SID_Ctl3        = $D412
 132 SID_AD3         = $D413
 133 SID_SUR3        = $D414
 134
 135 SID_FltLo       = $D415
 136 SID_FltHi       = $D416
 137 SID_FltCtl      = $D417
 138 SID_Amp         = $D418
 139 SID_ADConv1     = $D419
 140 SID_ADConv2     = $D41A
 141 SID_Noise       = $D41B
 142 SID_Read3       = $D41C
 143
 144 ; ---------------------------------------------------------------------------
 145 ; I/O: VDC (128 only)
 146
 147 VDC_INDEX       = $D600
 148 VDC_DATA        = $D601
 149
 150 ; ---------------------------------------------------------------------------
 151 ; I/O: CIAs
 152
 153 CIA1            = $DC00
 154 CIA1_PRA        = $DC00
 155 CIA1_PRB        = $DC01
 156 CIA1_DDRA       = $DC02
 157 CIA1_DDRB       = $DC03
 158 CIA1_ICR        = $DC0D
 159 CIA1_CRA        = $DC0E
 160 CIA1_CRB        = $DC0F
 161
 162 CIA2            = $DD00
 163 CIA2_PRA        = $DD00
 164 CIA2_PRB        = $DD01
 165 CIA2_DDRA       = $DD02
 166 CIA2_DDRB       = $DD03
 167 CIA2_ICR        = $DD0D
 168 CIA2_CRA        = $DD0E
 169 CIA2_CRB        = $DD0F
 170
 171 ; ---------------------------------------------------------------------------
 172 ; Super CPU
 173
 174 SCPU_VIC_Bank1  = $D075
 175 SCPU_Slow       = $D07A
 176 SCPU_Fast       = $D07B
 177 SCPU_EnableRegs = $D07E
 178 SCPU_DisableRegs= $D07F
 179 SCPU_Detect     = $D0BC
 180
 181
 182 ; ---------------------------------------------------------------------------
 183 ; Processor Port at $01
 184
 185 LORAM           = $01           ; Enable the basic rom
 186 HIRAM           = $02           ; Enable the kernal rom
 187 IOEN            = $04           ; Enable I/O
 188 CASSDATA        = $08           ; Cassette data
 189 CASSPLAY        = $10           ; Cassette: Play
 190 CASSMOT         = $20           ; Cassette motor on
 191 TP_FAST         = $80           ; Switch Rossmoeller TurboProcess to fast mode
 192
 193 RAMONLY         = $F8           ; (~(LORAM | HIRAM | IOEN)) & $FF
 194
 195