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Type-Qualifier static Variable is globally active and initialized to 0. Only accessible from this compilation unit. auto Variable exists only while the procedure is active. This is the default and AUTO need not be used. double Is a reserved word but is not a supported data type. extern External variable used with multiple compilation units. No storage is allocated. Is used to make otherwise out of scope data accessible. there must be a non-extern definition at the global level in some compilation unit. register Is allowed as a qualifier however, has no effect. _ fixed(n) Creates a fixed point decimal number where n is how many decimal places to implement. unsigned Data is always positive. This is the default data type if not specified. signed Data can be negative or positive. volatile Tells the compiler optimizer that this variable can be changed at any point during execution. const Data is read-only. Depending on compiler configuration, this qualifier may just make the data read-only -AND/OR- it may place the data into program memory to save space. (see #DEVICE const=) rom Forces data into program memory. Pointers may be used to this data but they can not be mixed with RAM pointers. void Built-in basic type. Type void is used to indicate no specific type in places where a type is required. readonly Writes to this variable should be dis-allowed
