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# Incomplete awlsim TODO list
## S7 compatibility
* Add feature: Missing SFCs/SFBs
* Add feature: Missing library FCs/FBs
* Add feature: Parsing of attributes
* Add feature: Support for interrupt OBs
## core
* Improve performance (cython)
* Single download of symtab causes a redefinition error.
* Add feature: LAD (KOP) compiler
## AWL / STL optimizer
* Add optimization pass: O(UU)O(UU) -> UUOUU
* Add optimization pass: U(UU)= -> UU= (also for other insn types)
* Add optimization pass: Reordering of TEMP variables for space packing
## GUI
* Add feature: LAD (KOP) editor
* Add feature: Global find/replace
* Add feature: find/replace for symbol table editor
* Add feature: find/replace for library selection editor
* Add feature: Symbol table editor and interface editor: Copy/paste
* Add feature: Symbol table editor and interface editor: Context menu (right click).
* Add feature: Symbol table editor and interface editor: Data type auto completion. (Issue #23)
* Add feature: Symbol table editor and interface editor: Name suggestions based on existing names. (Issue #23)
* Add feature: Library selections editor copy/paste
## FBD / FUP GUI
* Rewrite wire drawing algorithm
* Improve performance in big diagrams
* Add feature: Support modifying wires by clicking onto them
* Add feature: Make width (and height?) of operands selectable
* Add feature: Exchange elements
* Add feature: Live view of signal states (online diagnosis)
* Add feature: find/replace for FUP editor
## FBD / FUP compiler
* Fix evaluation order in case of multiple parallel assignments and other elements
* Add element: CALL
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