Pointers gone mad!

Hello,

This is a simple questions about pointers! I can't believe I am asking this.
But here it goes. Please note that an integer is 8 bits long (1 byte)! Please
view question which is commented in code below.

=====================================Calling routine!
int spiA0=0,spiA1=0,spiA2=1;

//INCREMENT_ADDRESS BY AMOUNT OF INCREMENTATIONS REQUIRED
INC_ADDR(16,&spiA2, &spiA1,&spiA0);

=========================================Function!
void INC_ADDR( //***INCREMENT_ADDRESS***
int INCBY, //AMOUNT OF INCREMENTATIONS REQUIRED
int *A2, //MSB OF MESSAGE ADDRESS IN PAR FLASH
int *A1, //MIDSB OF MESSAGE ADDRESS IN PAR FLASH
int *A0) //LSB OF MESSAGE ADDRESS IN PAR FLASH
{
int i;

for(i=0;i<INCBY;i++)
{
if((*A0)==255) //Before A0 turns to 0, statement is true
{(*A1)++; //Increment central byte of flash adress
if((*A1)==255) //Before A1 to 0, statement is true
{ (*A2)++; //Increment MSBYTE of flash adress
}
}
/////////When the next line is executed (While i=0 during 1st iteration of
for loop)
//////// A0 increments to 1. But why does A1 get assigned the value of
256?????
(*A0)++;
}
}
================================================

Confused!

--
Best regards
Robert
.

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