- allow "xxx" * constexpr (where constexpr is not a number literal), now gives expression error not same type
- unify FunctioncallExpression + FunctioncallStatement and PipeExpression + Pipe statement classes, may require moving Expression/Statement into interfaces instead of abstract base classes
- for the pipe operator: recognise a placeholder (``?`` or ``%`` or ``_``) in a non-unary function call to allow non-unary functions in the chain; ``4 |> mkword(?, $44) |> print_uw``
but this requires all identifiers in the inlined expression to be changed to fully scoped names.
If we can do that why not perhaps also able to inline multi-line subroutines? Why would it be limited to just 1 line? Maybe to protect against code bloat.
- simplifyConditionalExpression() should not split expression if it still results in stack-based evaluation, but how does it know?
- simplifyConditionalExpression() sometimes introduces needless assignment to r9 tempvar (scenario sought)
- consider adding McCarthy evaluation to shortcircuit and and or expressions. First do ifs by splitting them up? Then do expressions that compute a value?
- make it possible to use cpu opcodes such as 'nop' as variable names by prefixing all asm vars with something such as ``p8v_``? Or not worth it (most 3 letter opcodes as variables are nonsensical anyway)
then we can get rid of the instruction lists in the machinedefinitions as well?
- [problematic due to 64tass:] add a compiler option to not remove unused subroutines. this allows for building library programs. But this won't work with 64tass's .proc ...
- Zig-like try-based error handling where the V flag could indicate error condition? and/or BRK to jump into monitor on failure? (has to set BRK vector for this)
- add special (u)word array type (or modifier?) that puts the array into memory as 2 separate byte-arrays 1 for LSB 1 for MSB -> allows for word arrays of length 256
- fix the problems in c128 target, and flesh out its libraries.
- c64: make the graphics.BITMAP_ADDRESS configurable (VIC banking)
- optimize several inner loops in gfx2 even further?
- add modes 2 and 3 to gfx2 (lowres 4 color and 16 color)?
- add a flood fill routine to gfx2?
- add a diskio.f_seek() routine for the Cx16 that uses its seek dos api? (only if that's stable)
Expressions:
- rethink the whole "isAugmentable" business. Because the way this is determined, should always also be exactly mirrorred in the AugmentableAssignmentAsmGen or you'll get a crash at code gen time.
- can we get rid of pieces of asmgen.AssignmentAsmGen by just reusing the AugmentableAssignment ? generated code should not suffer
- rewrite expression tree evaluation such that it doesn't use an eval stack but flatten the tree into linear code that uses a fixed number of predetermined value 'variables'?
- VariableAllocator: can we think of a smarter strategy for allocating variables into zeropage, rather than first-come-first-served
- translateFunctioncall() in BuiltinFunctionsAsmGen: should be able to assign parameters to a builtin function directly from register(s), this will make the use of a builtin function in a pipe expression more efficient without using a temporary variable
- translateNormalAssignment() -> better code gen for assigning boolean comparison expressions
- when a for loop's loopvariable isn't referenced in the body, and the iterations are known, replace the loop by a repeatloop
- automatically convert if statements that test for multiple values (if X==1 or X==2..) to if X in [1,2,..] statements, instead of just a warning.
