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/**
* gets a bitmasked value in a variable
*
* @arg 0 - the variable
* @arg 1 - mask
* @arg 2 - shift
*/
function script bitwise_get {
return (getarg(0) & getarg(1)) >> getarg(2, 0);
}
/**
* sets a bitmasked value in a variable
*
* @arg 0 - the target variable
* @arg 1 - mask
* @arg 2 - shift
* @arg 3 - new value
* @return a reference to the variable
*/
function script bitwise_set {
return set(getarg(0), (getarg(0) & ~(getarg(1))) | (getarg(3, 0) << getarg(2, 0)));
}
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