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