- printf "ADV (MAD version code): %d\n", $gdp & 0b00000011;
- printf "MA (multiapplication): %s\n", $gdp & 0b01000000 ? 'yes' : 'monoaplication';
- printf "DA (MAD available): %s\n", $gdp & 0b10000000 ? 'yes' : 'no';
+ $ADV = $gdp & 0b00000011;
+ $MA = $gdp & 0b01000000;
+ $DA = $gdp & 0b10000000;
+ printf "ADV (MAD version code): %d\n", $ADV;
+ printf "MA (multiapplication): %s\n", $MA ? 'yes' : 'monoaplication';
+ printf "DA (MAD available): %s\n", $DA ? 'yes' : 'no';