9bd1ba7c47
which included commits to RCS files with non-trunk default branches.
62 lines
2.7 KiB
C
62 lines
2.7 KiB
C
/*
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THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
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END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
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ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
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IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
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SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
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FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
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CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
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AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
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COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
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*/
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#ifndef _TIMER_H
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#define _TIMER_H
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#include "pstypes.h"
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#include "fix.h"
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//==========================================================================
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// This installs the timer services and interrupts at the rate specified by
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// count_val. If 'function' isn't 0, the function pointed to by function will
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// be called 'freq' times per second. Should be > 19 and anything around
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// 2-3000 is gonna start slowing down the system. Count_val should be
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// 1,193,180 divided by your target frequency. Use 0 for the normal 18.2 Hz
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// interrupt rate.
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#define TIMER_FREQUENCY 1193180
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extern void timer_init();
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extern void timer_close();
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extern void timer_set_rate(int count_val);
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extern void timer_set_function( void _far * function );
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//==========================================================================
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// These functions return the time since the timer was initialized in
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// some various units. The total length of reading time varies for each
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// one. They will roll around after they read 2^32.
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// There are milliseconds, milliseconds times 10, milliseconds times 100,
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// and microseconds. They time out after 1000 hrs, 100 hrs, 10 hrs, and
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// 1 hr, respectively.
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extern fix timer_get_fixed_seconds(); // Rolls about every 9 hours...
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extern fix timer_get_fixed_secondsX(); // Assume interrupts already disabled
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extern fix timer_get_approx_seconds(); // Returns time since program started... accurate to 1/120th of a second
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//NOT_USED extern unsigned int timer_get_microseconds();
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//NOT_USED extern unsigned int timer_get_milliseconds100();
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//NOT_USED extern unsigned int timer_get_milliseconds10();
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//NOT_USED extern unsigned int timer_get_milliseconds();
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//NOT_USED extern unsigned int timer_get_millisecondsX(); // Assume interrupts disabled
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//==========================================================================
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// Use to access the BIOS ticker... ie... i = TICKER
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void timer_delay(fix seconds);
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//#define USECS_PER_READING( start, stop, frames ) (((stop-start)*54945)/frames)
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#endif
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