/********************************************************************************
INT_Int.c:  CPU accept external interrupt request during ISR.

Compiler: BC++ 3.1, 
          Turbo C ++ 1.01(3.01) (free from http://community.borland.com/museum)
          MSC 6.0,
          MSVC 1.52.
          
Compile mode: large

Project: INT_int.c
         ..\Lib\(8000E.Lib,8000.Lib)                                                         
                                                                        
[24 Mar,2005] by Bill                                                   
*********************************************************************************/
#include "..\..\Lib\8000E.h"
#include "..\..\lib\8048.h"
#include <stdlib.h>

void interrupt far ISR_Function(void);

int iSlot;

void main(void)
{
    char *cSlot;                                
    
    InitLib();                      
                                    
    Print("Please selection Slot:");
    *cSlot=Getch();                 
    iSlot=atoi(cSlot);              
    Print("iSlot==%d\n\r",iSlot);   
    
    i8048_Init(iSlot);
    
    //Enable channel 0 as rising edge interrupt.
    i8048_Set_RisingReg(iSlot,0,1);     //channel 0 , 1=Enable  
    
    //Install ISR
    i8048_InstallISR(iSlot,(unsigned long *)&ISR_Function,6);
}

/********************************************************       
User can use the Print or printCom1 function in ISR,        
*********************************************************/      
void interrupt far ISR_Function(void)
{
                           
    i8048_UnFreezeCPU(iSlot);  
    _asm sti    //CPU accepts other interrupt request.
    
    if(i8048_Read_RisingEvent(iSlot,0)) //for channel 0
    {
        Print("INT\n\r");
    }
    
    i8048_UnFreezeINT(iSlot); //Clear interrupt status of 8048.   
}