trouble: for() iteration using INT32 variables

[ivanperino]

I`m working with a pic 16f88 on a CCS 4.023 and I have trouble when I use "for()" iteration with int32 variable but it works right if I do it with a "while()" iteration.
The piece of code that doesn`t work is:

#include <C:\Archivos de programa\CCS4\Devices\16F88.h>
#device ADC=10
#fuses NOWDT,INTRC_IO, PUT, NOBROWNOUT, NOLVP, NOWRT, NOPROTECT, MCLR
...
int32 aux_d;
int8 aux_dato;
...
for(aux_d=0x00000000; aux_d <= 0x0003ffff; dir++){
aux_dato = read_ext_eeprom(aux_d);
printf("%lx -- %x\n\r",aux_d,aux_dato);
if(aux_dato != 0xff){
aux_d = 0xffffffff;
dir = aux_d + 1;
printf("%lx -- %x\n\r",aux_d,aux_dato);
}
}
...
...
It run indefinitely, the statments printf aren´t necessary but they help me to debug the program. printf shows to me that for() doesn't break out.

In the other hand, the next piece of code runs right:

#include <C:\Archivos de programa\CCS4\Devices\16F88.h>
#device ADC=10
#fuses NOWDT,INTRC_IO, PUT, NOBROWNOUT, NOLVP, NOWRT, NOPROTECT, MCLR
...
int32 aux_d;
int8 aux_dato;
...
aux_d=0x0003ffff;
aux_dato = read_ext_eeprom(aux_d);
printf("%lx -- %x\n\r",aux_d,aux_dato);
while((0xff == aux_dato) & (aux_d != 0)){
aux_d--;
aux_dato = read_ext_eeprom(aux_d);
printf("%lx -- %x\n\r",aux_d,aux_dato);
}
dir = aux_d + 1;
...
using while() iteration, it works ok.

What is happening? May be a Compiler bug?
Thank you to everybody.

[Wayne_]

The condition for leaving the for loop will never be met because you are NOT incrementing aux_d.

no idea why you are incrementing dir or why it is there!
in the while loop you are actually going backwards through the addresses, why are you not doing the same in the for loop ?