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annotate src/video/xbios/SDL_xbios_blowup.h @ 3954:649fba69eccd SDL-1.2

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Set supervisor as volatile as it is modified from an interrupt
author Patrice Mandin <patmandin@gmail.com>
date Fri, 08 Jun 2007 21:44:40 +0000
parents d910939febfa
children 782fd950bd46 c121d94672cb a1b03ba2fcd0
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 /*
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25 Blowup extension definitions
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26
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27 Patrice Mandin
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28 */
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29
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30 #ifndef _SDL_xbios_blowup_h
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31 #define _SDL_xbios_blowup_h
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32
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33 #include "SDL_xbios.h"
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34
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35 /*--- Types ---*/
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36
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37 typedef struct {
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38 /* 64 bytes */
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39 unsigned short enabled; /* Extended mode enabled ? 0=yes, <>0=no */
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40 unsigned short dummy10[6];
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41 unsigned short registers_0E; /* value for register 0xffff820e */
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42 unsigned short registers_10; /* value for register 0xffff8210 */
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43 unsigned short dummy11[23];
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44
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45 /* 64 bytes */
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46 unsigned short width; /* width-1 */
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47 unsigned short height; /* height-1 */
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48 unsigned short dummy20;
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49 unsigned long screensize; /* screensize in bytes */
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50 unsigned short dummy21[8];
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51 unsigned short virtual; /* Virtual screen ? */
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52 unsigned short virwidth; /* Virtual screen width */
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53 unsigned short virheight; /* Virtual screen height */
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54
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55 unsigned short dummy22;
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56 unsigned short monitor; /* Monitor defined for this mode */
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57 unsigned short extension; /* Extended mode defined ? 0=yes, 1=no */
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58 unsigned short dummy23[13];
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59
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60 /* 64 bytes */
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61 unsigned short dummy30;
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62 unsigned short registers_82[6]; /* values for registers 0xffff8282-8c */
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63 unsigned short dummy31[9];
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64
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65 unsigned short dummy32;
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66 unsigned short registers_A2[6]; /* values for registers 0xffff82a2-ac */
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67 unsigned short dummy33[9];
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68
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69 /* 64 bytes */
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70 unsigned short registers_C0; /* value for register 0xffff82c0 */
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71 unsigned short registers_C2; /* value for register 0xffff82c2 */
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72 unsigned short dummy40[30];
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73 } __attribute__((packed)) blow_mode_t;
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74
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75 typedef struct {
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76 blow_mode_t blowup_modes[10];
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77 unsigned char num_mode[6];
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78 unsigned long dummy;
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79 unsigned short montype;
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80 } __attribute__((packed)) blow_cookie_t;
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81
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82 /*--- Functions prototypes ---*/
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83
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84 void SDL_XBIOS_BlowupInit(_THIS, blow_cookie_t *cookie_blow);
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85
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86 #endif /* _SDL_xbios_blowup_h */