git.sur5r.net Git - cc65/blob - asminc/tgi-kernel.inc

   1 ;*****************************************************************************/
   2 ;*                                                                           */
   3 ;*                                tgi-kernel.inc                             */
   4 ;*                                                                           */
   5 ;*                             TGI kernel interface                          */
   6 ;*                                                                           */
   7 ;*                                                                           */
   8 ;*                                                                           */
   9 ;* (C) 2002-2009, Ullrich von Bassewitz                                      */
  10 ;*                Roemerstrasse 52                                           */
  11 ;*                D-70794 Filderstadt                                        */
  12 ;* EMail:         uz@cc65.org                                                */
  13 ;*                                                                           */
  14 ;*                                                                           */
  15 ;* This software is provided 'as-is', without any expressed or implied       */
  16 ;* warranty.  In no event will the authors be held liable for any damages    */
  17 ;* arising from the use of this software.                                    */
  18 ;*                                                                           */
  19 ;* Permission is granted to anyone to use this software for any purpose,     */
  20 ;* including commercial applications, and to alter it and redistribute it    */
  21 ;* freely, subject to the following restrictions:                            */
  22 ;*                                                                           */
  23 ;* 1. The origin of this software must not be misrepresented; you must not   */
  24 ;*    claim that you wrote the original software. If you use this software   */
  25 ;*    in a product, an acknowledgment in the product documentation would be  */
  26 ;*    appreciated but is not required.                                       */
  27 ;* 2. Altered source versions must be plainly marked as such, and must not   */
  28 ;*    be misrepresented as being the original software.                      */
  29 ;* 3. This notice may not be removed or altered from any source              */
  30 ;*    distribution.                                                          */
  31 ;*                                                                           */
  32 ;*****************************************************************************/
  33
  34
  35
  36 ;------------------------------------------------------------------------------
  37 ; The driver header
  38
  39 .struct TGI_HDR
  40         ID                  .byte   3   ; Contains 0x74, 0x67, 0x69 ("tgi")
  41         VERSION             .byte   1   ; Interface version
  42         VARS                .struct
  43             XRES            .word   1   ; X resolution
  44             YRES            .word   1   ; Y resolution
  45             COLORCOUNT      .byte   1   ; Number of available colors
  46             PAGECOUNT       .byte   1   ; Number of screens available
  47             FONTWIDTH       .byte   1   ; System font width
  48             FONTHEIGHT      .byte   1   ; System font height
  49             ASPECTRATIO     .word   1   ; Fixed point 8.8 format
  50         .endstruct
  51         JUMPTAB             .struct
  52             INSTALL         .addr       ; INSTALL routine
  53             UNINSTALL       .addr       ; UNINSTALL routine
  54             INIT            .addr       ; INIT routine
  55             DONE            .addr       ; DONE routine
  56             GETERROR        .addr       ; GETERROR routine
  57             CONTROL         .addr       ; CONTROL routine
  58             CLEAR           .addr       ; CLEAR routine
  59             SETVIEWPAGE     .addr       ; SETVIEWPAGE routine
  60             SETDRAWPAGE     .addr       ; SETDRAWPAGE routine
  61             SETCOLOR        .addr       ; SETCOLOR routine
  62             SETPALETTE      .addr       ; SETPALETTE routine
  63             GETPALETTE      .addr       ; GETPALETTE routine
  64             GETDEFPALETTE   .addr       ; GETDEFPALETTE routine
  65             SETPIXEL        .addr       ; SETPIXEL routine
  66             GETPIXEL        .addr       ; GETPIXEL routine
  67             LINE            .addr       ; LINE routine
  68             BAR             .addr       ; BAR routine
  69             TEXTSTYLE       .addr       ; TEXTSTYLE routine
  70             OUTTEXT         .addr       ; OUTTEXT routine
  71             IRQ             .addr       ; IRQ routine
  72         .endstruct
  73 .endstruct
  74
  75 ;------------------------------------------------------------------------------
  76 ; The TGI API version, stored at TGI_HDR_VERSION
  77
  78 TGI_API_VERSION         = $03
  79
  80 ;------------------------------------------------------------------------------
  81 ; Color and text constants
  82
  83 TGI_COLOR_BLACK         = 0
  84 TGI_COLOR_WHITE         = 1
  85
  86 TGI_FONT_BITMAP         = 0
  87 TGI_FONT_VECTOR         = 1
  88
  89 TGI_TEXT_HORIZONTAL     = 0
  90 TGI_TEXT_VERTICAL       = 1
  91
  92 ;------------------------------------------------------------------------------
  93 ; Variables
  94
  95         .global _tgi_drv                ; Pointer to driver
  96         .global _tgi_error              ; Last error code
  97         .global _tgi_gmode              ; Flag: graphics mode active
  98         .global _tgi_curx               ; Current drawing cursor X
  99         .global _tgi_cury               ; Current drawing cursor Y
 100         .global _tgi_color              ; Current drawing color
 101         .global _tgi_font               ; Which font to use
 102         .global _tgi_textdir            ; Current text direction
 103         .global _tgi_textscalew         ; Text magnification for the width
 104         .global _tgi_textscaleh         ; Text magnification for the height
 105         .global _tgi_charwidth          ; Width of scaled system font char
 106         .global _tgi_charheight         ; Height of scaled system font char
 107         .global _tgi_xres               ; X resolution of the current mode
 108         .global _tgi_yres               ; Y resolution of the current mode
 109         .global _tgi_colorcount         ; Number of available colors
 110         .global _tgi_pagecount          ; Number of available screen pages
 111         .global _tgi_fontwidth          ; System font width
 112         .global _tgi_fontheight         ; System font height
 113         .global _tgi_aspectratio        ; Aspect ratio, fixed point 8.8
 114
 115 ;------------------------------------------------------------------------------
 116 ; Driver entry points
 117
 118         .global tgi_install
 119         .global tgi_uninstall
 120         .global tgi_init
 121         .global tgi_done
 122         .global tgi_geterror
 123         .global tgi_control
 124         .global tgi_clear
 125         .global tgi_setviewpage
 126         .global tgi_setdrawpage
 127         .global tgi_setcolor
 128         .global tgi_setpalette
 129         .global tgi_getpalette
 130         .global tgi_getdefpalette
 131         .global tgi_setpixel
 132         .global tgi_getpixel
 133         .global tgi_line
 134         .global tgi_bar
 135         .global tgi_textstyle
 136         .global tgi_outtext
 137
 138 ;------------------------------------------------------------------------------
 139 ; ASM functions
 140
 141         .global tgi_getset
 142         .global tgi_inv_arg
 143         .global tgi_inv_drv
 144         .global tgi_linepop
 145         .global tgi_set_ptr
 146         .global tgi_popxy
 147         .global tgi_popxy2
 148         .global tgi_curtoxy
 149
 150 ;------------------------------------------------------------------------------
 151 ; C callable functions
 152
 153         .global _tgi_load
 154         .global _tgi_load_driver
 155         .global _tgi_unload
 156         .global _tgi_install
 157         .global _tgi_uninstall
 158         .global _tgi_init
 159         .global _tgi_ioctl
 160         .global _tgi_done
 161         .global _tgi_geterror
 162         .global _tgi_geterrormsg
 163         .global _tgi_clear
 164         .global _tgi_getpagecount
 165         .global _tgi_setviewpage
 166         .global _tgi_setdrawpage
 167         .global _tgi_getcolorcount
 168         .global _tgi_getmaxcolor
 169         .global _tgi_setcolor
 170         .global _tgi_getcolor
 171         .global _tgi_setpalette
 172         .global _tgi_getpalette
 173         .global _tgi_getdefpalette
 174         .global _tgi_getxres
 175         .global _tgi_getmaxx
 176         .global _tgi_getyres
 177         .global _tgi_getmaxy
 178         .global _tgi_getpixel
 179         .global _tgi_setpixel
 180         .global _tgi_gotoxy
 181         .global _tgi_line
 182         .global _tgi_lineto
 183         .global _tgi_circle
 184         .global _tgi_ellipse
 185         .global _tgi_bar
 186         .global _tgi_textscale
 187         .global _tgi_textstyle
 188         .global _tgi_textwidth
 189         .global _tgi_textheight
 190         .global _tgi_outtext
 191         .global _tgi_outtextxy
 192
 193