How to manipulate integer overflow in hexadecimal.(Ur gent)

[raghavendrap]

$tmp  = 0xc0211082;
 $tmp1 = 0xc0000082;
 

Hello friends,
I got doubt when i am converting negative hexadecimal to a decimal number.Please look at mentioned example below.
In the below example my question is when i am converting an hexadecimal to an decimal number i am getting integer overflow in hexadecimal? But the actual values of $tmp & $tmp1 in decimal is signed numbers i.e -1071574910,-1073741694 respectively.
How to manipulate this type of situations?

 $tmp  = 0xc0211082;
 $tmp1 = 0xc0000082;
 
 $tmp2_dec = hex($tmp);
 $tmp3_dec = hex($tmp1);
 
 printf("Decimal Value tmp is %d \n",$tmp);
 printf("Decimal Value tmp1 is %d \n",$tmp1);
 printf("Decimal Value tmp2 is %d \n",$tmp2_dec);
 printf("Decimal Value tmp3 is %d \n",$tmp3_dec);
 
if($tmp2_dec >0 && $tmp3_dec >0){
print("Temporary values are greater than Zero \n");
}else {
print("Temporary values are less than zero \n");
}
 

Thanks
Raghavendra

[KevinADC]

As the hex() functions manpage explains:

To convert strings that might start with either 0, 0x, or 0b, see oct .

http://perldoc.perl.org/functions/oct.html

[raghavendrap]

Hello,
Can you please be clear about what your are trying to explain me.



Thanks
Raghavendra

[KevinADC]

please read the links next time:

$tmp2_dec = oct('0xc0211082');
$tmp3_dec = oct('0xc0000082');
 
print "$tmp2_dec   $tmp3_dec\n";
 
$t2 = sprintf "%d", $tmp2_dec;
$t3 = sprintf "%d", $tmp3_dec;
 
print "$t2 $t3\n";
 
printf ("Decimal Value tmp is %d \n",$tmp2_dec);
printf("Decimal Value tmp1 is %d \n",$tmp3_dec);
 
if($t2 > 0 && $t3 > 0){
   print("Temporary values $t2 and $t3 are greater than Zero \n");
}else {
   print("Temporary values $t2 and $t3 are less than zero \n");
}

[raghavendrap]

Thank you very much kevin
Can u please provide me some useful links of perl, i need to write automation script for assembly instructions & need to generate .asm file..

Thanks
Raghvendra

[KevinADC]

http://bytes.com/forum/thread790489.html
http://www.perlmonks.com/index.pl?node=Tutorials