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

   1 ;*
   2 ;** VTech Creativision Definitions
   3 ;*
   4
   5 ;** Screen
   6 SCREEN_ROWS             = 24
   7 SCREEN_COLS             = 32
   8 SCREEN_PTR              = $3A
   9 CURSOR_X                = $3C
  10 CURSOR_Y                = $3D
  11
  12 ;** VDP
  13 VDP_DATA_R              = $2000
  14 VDP_STATUS_R            = $2001
  15 VDP_DATA_W              = $3000
  16 VDP_CONTROL_W           = $3001
  17
  18 ;** PIA
  19 PIA0_DATA               = $1000
  20 PIA0_STATUS             = $1001
  21 PIA1_DATA               = $1002
  22 PIA1_STATUS             = $1003
  23
  24 ;** General
  25 CH_VLINE                = 33
  26 CH_HLINE                = 34
  27 CH_ULCORNER             = 35
  28 CH_URCORNER             = 36
  29 CH_LLCORNER             = 37
  30 CH_LRCORNER             = 38
  31
  32 ;** I/O (Zero-page variables)
  33 ZP_KEYBOARD             = $10
  34 ZP_JOY0_DIR             = $11
  35 ZP_JOY1_DIR             = $13
  36 ZP_JOY0_BUTTONS         = $16
  37 ZP_JOY1_BUTTONS         = $17
  38
  39 ;** Joystick direction values (ZP_JOY0_DIR/ZP_JOY1_DIR)
  40 JOY_N                   = $49
  41 JOY_NNE                 = $48
  42 JOY_NE                  = $47
  43 JOY_ENE                 = $46
  44 JOY_E                   = $45
  45 JOY_ESE                 = $44
  46 JOY_SE                  = $43
  47 JOY_SSE                 = $42
  48 JOY_S                   = $41
  49 JOY_SSW                 = $40
  50 JOY_SW                  = $4F
  51 JOY_WSW                 = $4E
  52 JOY_W                   = $4D
  53 JOY_WNW                 = $4C
  54 JOY_NW                  = $4B
  55 JOY_NNW                 = $4A
  56
  57 ;** BIOS
  58 BIOS_IRQ1_ADDR          = $FF3F
  59 BIOS_IRQ2_ADDR          = $FF52
  60 BIOS_NMI_RESET_ADDR     = $F808
  61 BIOS_WRITE_VDP_REG      = $FE1F