Added function [loader].Symbol.isCode.
Added PIC-14 byte-orientated file register instructions.
Added PIC-14 bit set, clear and test instructions.
Added PIC-14 immediate instructions.
Added class [db].Database.
Added CALL and GOTO instructions for PIC-14.
Added RETURN, RETFIE, SLEEP and CLRWDT instructions for PIC-14.
Added class [db].Reference.
Corrected error in 6500 condition codes, which were incorrectly using <ref> in place of <register> elements.
Added missing resolveReferences and resolveRegisters methods in [cpudl].expr.Conditional.
Added method [cpudl].expr.Expression.listAssignments, with implementations.
Changed first argument of [cpudl].expr.Register.make from Context to Architecture, so that it is possible to create register references without the need for a lexical context.
Changed the meaning of a <ref> element within an expression to refer to the effect of an instruction fragment, as opposed to the fragment itself.
Added class [db].Line.
Added class [analysis].InstructionClassifier.
Corrected behaviour of 6500 BRK instruction, which should read the vector stored at  and jump to it (as opposed to jumping to ).
In [db].Reference, added ability to record references to subroutines.