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1.1 root 1: /*
2: * UAE - The Un*x Amiga Emulator
3: *
4: * Events
5: * These are best for low-frequency events. Having too many of them,
6: * or using them for events that occur too frequently, can cause massive
7: * slowdown.
8: *
9: * Copyright 1995-1998 Bernd Schmidt
10: */
11:
1.1.1.4 root 12: #ifndef UAE_EVENTS_H
13: #define UAE_EVENTS_H
14:
15: #include "uae/types.h"
16:
1.1 root 17: #undef EVENT_DEBUG
18:
1.1.1.4 root 19: #include "machdep/rpt.h"
1.1 root 20:
1.1.1.3 root 21: extern frame_time_t vsyncmintime, vsyncmaxtime, vsyncwaittime;
22: extern int vsynctimebase, syncbase;
1.1 root 23: extern void reset_frame_rate_hack (void);
1.1.1.3 root 24: extern unsigned long int vsync_cycles;
25: extern unsigned long start_cycles;
26: extern int event2_count;
27: extern bool event_wait;
1.1 root 28:
29: extern void compute_vsynctime (void);
30: extern void init_eventtab (void);
1.1.1.3 root 31: extern void do_cycles_ce (unsigned long cycles);
32: ////extern void do_cycles_ce_internal (unsigned long cycles);
1.1.1.5 ! root 33: #ifdef WINUAE_FOR_HATARI
! 34: extern void do_cycles_ce_hatari_blitter (unsigned long cycles);
! 35: #endif
1.1.1.3 root 36: #ifndef WINUAE_FOR_HATARI
37: extern void do_cycles_ce020 (unsigned long cycles);
38: ///extern void do_cycles_ce020_internal (unsigned long cycles);
39: #else
40: /* [NP] avoid conflict with do_cycles_ce020( int ) in cpu_prefetch.h */
41: extern void do_cycles_ce020_long (unsigned long cycles);
42: ///extern void do_cycles_ce020_internal_long (unsigned long cycles);
43: #endif
44: extern void events_schedule (void);
45: extern void do_cycles_slow (unsigned long cycles_to_add);
46: extern void do_cycles_fast (unsigned long cycles_to_add);
1.1 root 47:
1.1.1.3 root 48: extern int is_cycle_ce (void);
1.1 root 49:
1.1.1.3 root 50: extern unsigned long currcycle, nextevent;
51: extern int is_syncline, is_syncline_end;
1.1 root 52: typedef void (*evfunc)(void);
53: typedef void (*evfunc2)(uae_u32);
54:
55: typedef unsigned long int evt;
56:
57: struct ev
58: {
1.1.1.3 root 59: bool active;
1.1 root 60: evt evtime, oldcycles;
61: evfunc handler;
62: };
63:
64: struct ev2
65: {
1.1.1.3 root 66: bool active;
1.1 root 67: evt evtime;
68: uae_u32 data;
69: evfunc2 handler;
70: };
71:
72: enum {
1.1.1.3 root 73: ev_cia, ev_audio, ev_misc, ev_hsync,
1.1 root 74: ev_max
75: };
76:
77: enum {
78: ev2_blitter, ev2_disk, ev2_misc,
79: ev2_max = 12
80: };
81:
1.1.1.3 root 82: #define do_cycles do_cycles_slow
83:
1.1 root 84: extern struct ev eventtab[ev_max];
85: extern struct ev2 eventtab2[ev2_max];
86:
1.1.1.3 root 87: extern int hpos_offset;
88: extern int maxhpos;
1.1 root 89:
1.1.1.3 root 90: STATIC_INLINE void cycles_do_special (void)
91: {
1.1.1.4 root 92: /* Currently unused in Hatari */
1.1.1.3 root 93: }
94:
95: STATIC_INLINE void do_extra_cycles (unsigned long cycles_to_add)
96: {
1.1.1.4 root 97: /* Currently unused in Hatari */
1.1.1.3 root 98: }
99:
100: STATIC_INLINE unsigned long int get_cycles (void)
101: {
102: return currcycle;
103: }
104:
105: STATIC_INLINE void set_cycles (unsigned long int x)
106: {
107: currcycle = x;
108: eventtab[ev_hsync].oldcycles = x;
109: #ifdef EVT_DEBUG
110: if (currcycle & (CYCLE_UNIT - 1))
111: write_log (_T("%x\n"), currcycle);
1.1 root 112: #endif
1.1.1.3 root 113: }
1.1 root 114:
1.1.1.3 root 115: STATIC_INLINE int current_hpos_safe (void)
116: {
117: int hp = (get_cycles () - eventtab[ev_hsync].oldcycles) / CYCLE_UNIT;
118: return hp;
119: }
1.1 root 120:
1.1.1.3 root 121: extern int current_hpos(void);
1.1 root 122:
123: STATIC_INLINE bool cycles_in_range (unsigned long endcycles)
124: {
125: signed long c = get_cycles ();
126: return (signed long)endcycles - c > 0;
127: }
128:
1.1.1.3 root 129: extern void MISC_handler (void);
130: extern void event2_newevent_xx (int no, evt t, uae_u32 data, evfunc2 func);
1.1.1.4 root 131: extern void event2_newevent_x_replace(evt t, uae_u32 data, evfunc2 func);
1.1.1.3 root 132:
133: STATIC_INLINE void event2_newevent_x (int no, evt t, uae_u32 data, evfunc2 func)
134: {
135: if (((int)t) <= 0) {
136: func (data);
137: return;
138: }
139: event2_newevent_xx (no, t * CYCLE_UNIT, data, func);
140: }
141:
142: STATIC_INLINE void event2_newevent (int no, evt t, uae_u32 data)
143: {
144: event2_newevent_x (no, t, data, eventtab2[no].handler);
145: }
146: STATIC_INLINE void event2_newevent2 (evt t, uae_u32 data, evfunc2 func)
147: {
148: event2_newevent_x (-1, t, data, func);
149: }
150:
151: STATIC_INLINE void event2_remevent (int no)
152: {
153: eventtab2[no].active = 0;
154: }
155:
1.1.1.4 root 156: #endif /* UAE_EVENTS_H */
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