Initial Source Code commit
Initial commit of original Tiberian Dawn and Red Alert source code converted to build as DLLs, and compatible with the release version of Command & Conquer Remastered.
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REDALERT/WIN32LIB/TIMERINI.CPP
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REDALERT/WIN32LIB/TIMERINI.CPP
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//
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// Copyright 2020 Electronic Arts Inc.
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//
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is free
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// software: you can redistribute it and/or modify it under the terms of
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// the GNU General Public License as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is distributed
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// in the hope that it will be useful, but with permitted additional restrictions
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// under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT
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// distributed with this program. You should have received a copy of the
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// GNU General Public License along with permitted additional restrictions
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// with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
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/***************************************************************************
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** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S **
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***************************************************************************
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* *
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* Project Name : Temp timer for 32bit lib *
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* *
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* File Name : TIMERINI.CPP *
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* *
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* Programmer : Scott K. Bowen *
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* *
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* Start Date : July 6, 1994 *
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* *
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* Last Update : July 6, 1994 [SKB] *
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* *
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*-------------------------------------------------------------------------*
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* Functions: *
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* Init_Timer_System -- Initialize the WW timer system. *
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* Remove_Timer_System -- Removes the timer system. *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#include <wwstd.h>
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#include <mmsystem.h>
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#include "timer.H"
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#include <profile.h>
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#include <stdio.h>
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/////////////////////////////////////////////////////////////////////////////////
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/////////////////////////////////// Defines /////////////////////////////////////
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#define COPY_FROM_MEM TRUE
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/////////////////////////////////////////////////////////////////////////////////
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////////////////////////////// timera.asm functions//////////////////////////////
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern BOOL Install_Timer_Interrupt(VOID *bin_ptr, UINT rm_size, UINT freq, BOOL partial);
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extern BOOL Remove_Timer_Interrupt(VOID);
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#ifdef __cplusplus
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}
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#endif
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/////////////////////////////////////////////////////////////////////////////////
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/////////////////////////////// Global Data /////////////////////////////////////
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BOOL TimerSystemOn = FALSE;
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// Global timers that the library or user can count on existing.
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TimerClass TickCount(BT_SYSTEM);
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CountDownTimerClass CountDown(BT_SYSTEM, 0);
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// Prototype for timer callback
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void CALLBACK Timer_Callback ( UINT event_id, UINT res1 , DWORD user, DWORD res2, DWORD res3 );
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HANDLE TimerThreadHandle = 0; //Handle of timer thread
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int InTimerCallback = 0; //Flag to say if we are in a timer callback
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/////////////////////////////////////////////////////////////////////////////////
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/////////////////////////////////// Code ////////////////////////////////////////
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#pragma warning (disable : 4996)
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/***************************************************************************
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* WinTimerClass::WinTimerClass -- Initialize the WW timer system. *
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* *
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* *
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* INPUT: UINT : user timer frequency. *
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* *
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* OUTPUT: *
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* *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 10/5/95 3:47PM : ST Created. *
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*=========================================================================*/
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WinTimerClass::WinTimerClass (UINT freq, BOOL partial)
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{
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BOOL success;
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//
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// Inform windows that we want a higher than normal
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// timer resolution
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//
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#ifdef __SW_EP
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timeBeginPeriod(1000/PROFILE_RATE);
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Frequency = PROFILE_RATE;
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#else
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timeBeginPeriod ( 1000/freq );
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Frequency = freq;
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#endif
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SysTicks = 0;
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UserTicks = 0;
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//
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// Install the timer callback event handler
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//
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//TimerHandle = timeSetEvent ( 1000/freq , 1 , Timer_Callback , 0 , TIME_PERIODIC);
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// Add TIME_KILL_SYNCHRONOUS flag. ST - 2/13/2019 5:07PM
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TimerHandle = timeSetEvent ( 1000/freq , 1 , Timer_Callback , 0 , TIME_PERIODIC | TIME_KILL_SYNCHRONOUS);
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TimerSystemOn = success = ( TimerHandle !=0 );
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if (success) {
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if (!partial) {
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WindowsTimer=this;
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TickCount.Start();
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}
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}else{
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char error_str [128];
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sprintf (error_str, "Error - timer system failed to start. Error code %d\n", GetLastError());
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OutputDebugString(error_str);
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}
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}
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/***************************************************************************
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* WinTimerClass::~WinTimerClass -- Removes the timer system. *
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* *
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* *
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* INPUT: NONE. *
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* *
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* OUTPUT: BOOL was it removed successfuly *
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* *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 10/5/95 3:47PM : ST Created. *
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*=========================================================================*/
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WinTimerClass::~WinTimerClass( void )
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{
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if ( TimerHandle ){
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timeKillEvent ( TimerHandle );
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TimerHandle = 0; //ST - 2/13/2019 5:12PM
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}
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TimerSystemOn = FALSE;
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timeEndPeriod ( 1000/Frequency );
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}
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/***********************************************************************************************
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* Timer_Callback -- Main timer callback. Equivalent to a timer interrupt handler *
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* *
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* *
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* *
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* INPUT: uint timer ID *
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* uint reserved *
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* long 0 (application defined) *
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* long reserved *
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* long reserved *
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* *
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* OUTPUT: Nothing *
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* *
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* WARNINGS: None *
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* *
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* HISTORY: *
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* 10/5/95 3:19PM ST : Created *
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*=============================================================================================*/
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void CALLBACK Timer_Callback (UINT , UINT , DWORD , DWORD , DWORD)
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{
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//CONTEXT context;
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InTimerCallback++;
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// Removed. ST - 2/13/2019 5:11PM
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//if (!TimerThreadHandle){
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// DuplicateHandle (GetCurrentProcess(), GetCurrentThread() , GetCurrentProcess() ,&TimerThreadHandle , 0 , TRUE , DUPLICATE_SAME_ACCESS);
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//}
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if (WindowsTimer) {
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WindowsTimer->Update_Tick_Count();
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}
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InTimerCallback--;
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}
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/***********************************************************************************************
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* WinTimerClass::Update_Tick_Count -- update westwood timers *
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* *
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* *
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* *
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* INPUT: Nothing *
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* *
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* OUTPUT: Nothing *
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* *
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* WARNINGS: None *
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* *
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* HISTORY: *
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* 10/5/95 3:58PM ST : Created *
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*=============================================================================================*/
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void WinTimerClass::Update_Tick_Count ( void )
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{
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/*
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*
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* Increment westwood timers
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*
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*/
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SysTicks++;
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UserTicks++;
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}
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/*
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;***************************************************************************
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;* GET_NUM_INTERRUPTS -- Returns the number of interrupts that have occured*
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;* *
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;* INPUT: TRUE - returns num RM ints. *
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;* FALSE - return num PM ints. *
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;* *
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;* OUTPUT: *
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;* *
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;* WARNINGS: *
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;* *
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;* HISTORY: *
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;* 07/12/1994 SKB : Created. *
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;*=========================================================================*
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PROC Get_Num_Interrupts C Near
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USES esi
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ARG realmode:DWORD
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mov esi,[RealModePtr]
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cmp [realmode],0
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je ??prot_mode
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mov eax,[(TimerType PTR esi).NumRMInts]
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ret
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??prot_mode:
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mov eax,[(TimerType PTR esi).NumPMInts]
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ret
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ENDP
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*/
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/***********************************************************************************************
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* WinTimerClass::Get_System_Tick_Count -- returns the system tick count *
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* *
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* INPUT: Nothing *
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* *
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* OUTPUT: tick count *
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* *
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* WARNINGS: None *
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* *
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* HISTORY: *
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* 10/5/95 4:02PM ST : Created *
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*=============================================================================================*/
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unsigned WinTimerClass::Get_System_Tick_Count ( void )
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{
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return ( SysTicks );
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}
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/***********************************************************************************************
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* WinTimerClass::Get_User_Tick_Count -- returns the user tick count *
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* *
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* INPUT: Nothing *
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* *
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* OUTPUT: tick count *
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* *
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* WARNINGS: None *
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* *
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* HISTORY: *
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* 10/5/95 4:02PM ST : Created *
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*=============================================================================================*/
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unsigned WinTimerClass::Get_User_Tick_Count ( void )
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{
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return ( UserTicks );
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}
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