getSibling method
void
getSibling()
Implementation
void getSibling() {
//Debugger.verbose('${pcHex(-1)} [get_sibling]');
final operand = visitOperandsShortForm();
final resultTo = readb();
GameObject obj = GameObject(operand.value);
writeVariable(resultTo, obj.sibling);
branch(obj.sibling != 0);
}