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10
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1 /*
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2 FILE : TIMER.H
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3
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4 DOS-based Timer Interrupt functions
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5 Includes defines for TIMER.C and VTIMER.C
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6 */
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7
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8 #ifndef VTIMER_H
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9 #define VTIMER_H
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10
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11 #include "tdefs.h"
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12
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13 #define VT_VRSYNC 1
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14 #define VT_CALLOLD 2
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15
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16 #ifdef __cplusplus
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17 extern "C" {
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18 #endif
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19
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20 // Defined in TIMER.C
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21
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22 void Timer_Exit(void);
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23 void Timer_Init(int rate, void (*handler)(void));
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24 void Timer_SetSpeed(UWORD rate);
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25 void Timer_Start(void);
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26 void Timer_Stop(void);
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27
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28
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29 // Defined in VTIMER.C
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30 void VT_Exit(void);
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31 void VT_Init(void);
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32 SWORD VT_Alloc(void);
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33 void VT_Free(SWORD handle);
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34 void VT_SetHandler(SWORD handle,void (*handler)(void));
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35 void VT_SetSpeed(SWORD handle,SLONG speed);
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36 void VT_SetBPM(SWORD handle,UBYTE bpm);
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37 void VT_Start(SWORD handle);
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38 void VT_Stop(SWORD handle);
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39 void VT_Mode(UBYTE flags);
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40 void VT_V0Handler(void (*handler)(void));
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41 void VT_V1Handler(void (*handler)(void));
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42
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43 #ifdef __cplusplus
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44 }
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45 #endif
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46
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47
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48 extern volatile int framecount;
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49 void framecounter(void);
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50
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51 // COUNTER.C defnitions
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52 // (ObjectGraphics Library)
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53
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54 #define CNT_ACTIVE 16
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55 #define CNT_VALUE 0
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56 #define CNT_POINTER 1
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57 #define CNT_FUNCTION 2
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58 #define CNT_TYPE 15
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59
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60 typedef struct COUNTER
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61 { struct COUNTER *next, *prev;
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62 UBYTE flags;
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63 ULONG counter;
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64 ULONG resetcount;
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65 int increment;
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66 int value;
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67 int stopvalue;
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68 } COUNTER;
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69
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70
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71 // Defined in COUNTER.C
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72 // (ObjectGraphics Library)
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73
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74 COUNTER *RegisterCounter(ULONG initcount, ULONG resetcount, int value, int increment, int stopvalue, UBYTE flags);
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75 void RemoveCounter(COUNTER *counter);
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76 void StartCounter(COUNTER *counter);
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77 void StopCounter(COUNTER *counter);
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78
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79 #ifdef DJGPP
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80 #include <dpmi.h>
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81 typedef void (*PVI)();
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82 #define interrupt
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83 #define far
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84 void _dos_setvect(unsigned vector, PVI handler);
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85 PVI _dos_getvect(unsigned vector);
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86 #endif
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87
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88 #endif
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