git.sur5r.net Git - cc65/blob - asminc/cbm510.inc

   1 ;
   2 ; Zero page variables and I/O definitions for the CBM 510
   3 ;
   4 ; Taken from a kernal disassembly done by myself in 2000/2001.
   5 ;
   6 ; Ullrich von Bassewitz, 13.09.2001
   7
   8
   9 ;-----------------------------------------------------------------------------
  10 ; Zeropage stuff
  11
  12 ExecReg         = $0000
  13 IndReg          = $0001
  14
  15 ; ---------------------------------------------------------------------------
  16 ; Screen size
  17
  18 XSIZE           = 40
  19 YSIZE           = 25
  20
  21 ;-----------------------------------------------------------------------------
  22 ; I/O Definitions
  23
  24 ; I/O  $d800: VIC
  25
  26 VIC_SPR0_X      = $00
  27 VIC_SPR0_Y      = $01
  28 VIC_SPR1_X      = $02
  29 VIC_SPR1_Y      = $03
  30 VIC_SPR2_X      = $04
  31 VIC_SPR2_Y      = $05
  32 VIC_SPR3_X      = $06
  33 VIC_SPR3_Y      = $07
  34 VIC_SPR4_X      = $08
  35 VIC_SPR4_Y      = $09
  36 VIC_SPR5_X      = $0A
  37 VIC_SPR5_Y      = $0B
  38 VIC_SPR6_X      = $0C
  39 VIC_SPR6_Y      = $0D
  40 VIC_SPR7_X      = $0E
  41 VIC_SPR7_Y      = $0F
  42 VIC_SPR_HI_X    = $10
  43 VIC_SPR_ENA     = $15
  44 VIC_SPR_EXP_Y   = $17
  45 VIC_SPR_EXP_X   = $1D
  46 VIC_SPR_MCOLOR  = $1C
  47 VIC_SPR_BG_PRIO = $1B
  48
  49 VIC_SPR_MCOLOR0 = $25
  50 VIC_SPR_MCOLOR1 = $26
  51
  52 VIC_SPR0_COLOR  = $27
  53 VIC_SPR1_COLOR  = $28
  54 VIC_SPR2_COLOR  = $29
  55 VIC_SPR3_COLOR  = $2A
  56 VIC_SPR4_COLOR  = $2B
  57 VIC_SPR5_COLOR  = $2C
  58 VIC_SPR6_COLOR  = $2D
  59 VIC_SPR7_COLOR  = $2E
  60
  61 VIC_CTRL1       = $11
  62 VIC_CTRL2       = $16
  63
  64 VIC_HLINE       = $12
  65
  66 VIC_VIDEO_ADR   = $18
  67
  68 VIC_IRR         = $19           ; Interrupt request register
  69 VIC_IMR         = $1A           ; Interrupt mask register
  70
  71 VIC_BORDERCOLOR = $20
  72 VIC_BG_COLOR0   = $21
  73 VIC_BG_COLOR1   = $22
  74 VIC_BG_COLOR2   = $23
  75 VIC_BG_COLOR3   = $24
  76
  77
  78
  79 ; I/O  $da00: SID 6581
  80
  81 SID_S1Lo        = $00
  82 SID_S1Hi        = $01
  83 SID_PB1Lo       = $02
  84 SID_PB1Hi       = $03
  85 SID_Ctl1        = $04
  86 SID_AD1         = $05
  87 SID_SUR1        = $06
  88
  89 SID_S2Lo        = $07
  90 SID_S2Hi        = $08
  91 SID_PB2Lo       = $09
  92 SID_PB2Hi       = $0A
  93 SID_Ctl2        = $0B
  94 SID_AD2         = $0C
  95 SID_SUR2        = $0D
  96
  97 SID_S3Lo        = $0E
  98 SID_S3Hi        = $0F
  99 SID_PB3Lo       = $10
 100 SID_PB3Hi       = $11
 101 SID_Ctl3        = $12
 102 SID_AD3         = $13
 103 SID_SUR3        = $14
 104
 105 SID_FltLo       = $15
 106 SID_FltHi       = $16
 107 SID_FltCtl      = $17
 108 SID_Amp         = $18
 109 SID_ADConv1     = $19
 110 SID_ADConv2     = $1A
 111 SID_Noise       = $1B
 112 SID_Read3       = $1C
 113
 114
 115 ; I/O  $db00: CIA 6526 Inter Process Communication
 116 ; I/O  $dc00: CIA 6526
 117
 118 .struct CIA
 119         PRA     .byte
 120         PRB     .byte
 121         DDRA    .byte
 122         DDRB    .byte
 123         .union
 124             .struct
 125                 TALO    .byte
 126                 TAHI    .byte
 127             .endstruct
 128             TA          .word
 129         .endunion
 130         .union
 131             .struct
 132                 TBLO    .byte
 133                 TBHI    .byte
 134             .endstruct
 135             TB          .word
 136         .endunion
 137         TOD10   .byte
 138         TODSEC  .byte
 139         TODMIN  .byte
 140         TODHR   .byte
 141         SDR     .byte
 142         ICR     .byte
 143         CRA     .byte
 144         CRB     .byte
 145 .endstruct
 146
 147
 148 ; I/O  $dd00: ACIA 6551
 149
 150 .struct ACIA
 151         DATA    .byte
 152         STATUS  .byte
 153         CMD     .byte
 154         CTRL    .BYTE
 155 .endstruct
 156
 157
 158 ; I/O  $de00: Triport #1 6525
 159 ; I/O  $df00: Triport #2 6525
 160
 161 .struct TPI
 162         PRA     .byte
 163         PRB     .byte
 164         .union
 165                 PRC     .byte
 166                 INT     .byte
 167         .endunion
 168         DDRA    .byte
 169         DDRB    .byte
 170         .union
 171                 DDRC    .byte
 172                 IMR     .byte
 173         .endunion
 174         CR      .byte
 175         AIR     .byte
 176 .endstruct
 177
 178
 179 ; Out video memory address
 180
 181 COLOR_RAM   = $D400                     ; System bank
 182