Hi can any one tell me why this program does not write to EEPROM. After setting IE0, the program jumps to its respective ISR but it does not write to EEPROM. It reads from, but it does not write to memory. I am using the emulator.
Thank you


#include <Reg932.h>
#include <stdio.h>
void init(void);
void brkrst_init(void);
sbit Pulse = P1^3; //port to recieve pulses

#define ADDR 0x05 //Low byte
#define ADDR1 0x06 //high byte

void EEPROMwrite(unsigned int adr,unsigned char dat);
unsigned char EEPROMread(unsigned int adr);

unsigned int pus = 0, glass = 0;
unsigned int Ldata, P_Counter;
unsigned char Low, High;

void Main(void)
{
P0 = 0x00;
P1 = 0x00; // turn off all P1 Pins. All pins unused
P2 = 0x00; // turn off all P2 Pins. All pins unused
P3 = 0x00; // turn off all P3 Pins. All pins unused

init(); // configure ports as inputs or outputs
// P0 Output and inputs, P1 Output and inputs
// P2 all pins are outputs
brkrst_init();
P_Counter = 0; P1 = 0x38;

IT0 = 1;
EX0 = 1;
IT1 = 1;
EX1 = 1;
EA = 1;
High= EEPROMread(ADDR1);
Low = EEPROMread(ADDR);
Ldata = High;
Ldata <<= (0x08);
Ldata |= Low;
if (Ldata == 0xFFFF)
{
Ldata = 0;
}
glass = Ldata;
P2 = glass;

while(1)
{
PCONA = 0xEF;
PCON = 0x11; // Stay on Idle mode
}
}

void init(void)
{
P0M1 = 0x00;
P0M2 = 0xCD;
P1M1 = 0x00; // Push-pull clk, reset, TX
P1M2 = 0x3F;
P2M1 = 0x00; // push pull output, for display only
P2M2 = 0xFF;
P1M1 |= 0x1A; // make INT0 and INT1 input pins
P1M2 &= 0xED;
ES = 1; // enable UART interrupt
//EA = 1;
}

void brkrst_init(void) // This function allows ISP entry through the UART break detect
{
SCON = 0x50; // select the BRG as UART baud rate source, pg. 60
SSTAT = 0x00; //Timer1
BRGR0 = 0xF0; // 9600 BAUD at @ 7.373MHz internal RC oscillator
BRGR1 = 0x02; //timer increments every .0271 microsec.
BRGCON = 0x03; // enable BRG, pg. 59
AUXR1 |= 0x80; // Clock Low Power Select
}

void UART(void) interrupt 4 //Interrupt number for serial port
{
RI = 0; // clear receive interrupt flag
}


void Interrupt_Pulses (void) interrupt 0
{
P_Counter++; // increment pulse counter
if (P_Counter == 1)
{ P_Counter = 0;
glass--;
P2 = glass;
pus = glass;
EEPROMwrite(ADDR, pus); // write new value back to EEPROM
pus >>= (0x08); // write high byte
EEPROMwrite(ADDR1, pus);
}
}

/*********************************Write to Memory***************************************/
void EEPROMwrite(unsigned int adr, unsigned char dat)
{
EA=0; // disable Interrupts during write
DEECON=(unsigned int)((adr>>8)&0x01); // mode: write byte, set address
DEEDAT=dat; // set write data
DEEADR=(unsigned char) adr; // start write
EA=1;
while((DEECON&0x80)==0); // wait until write is complete
}
/**************************************************************************************/
/*********************************Read from Memory*************************************/
unsigned char EEPROMread(unsigned int adr)
{
DEECON=(unsigned char)((adr>>8)&0x01); // mode: read byte, set adress
DEEADR=(unsigned char) adr; // start read, contains 0x05
while((DEECON&0x80)==0); // wait until read is complete
DEECON &= ~0x8E;
return (DEEDAT); // return data
}
/**************************************************************************************/