insertion of interrupt-code from unit

[jpc]

i noticed that in case of using a unit containing ISR's these are automatically inserted in the code by the compiler , even if they are not used. This can be a problem as they occupy ROM and possibly RAM. I can see this is a nasty situation , the compiler recognizes the ISR-vectors in the ORG-ed procedures , automatically generates the vector and now needs to add the code. Maybe this needs some rethinking.