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44 lines
2.7 KiB
ReStructuredText
44 lines
2.7 KiB
ReStructuredText
TODO
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====
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For next release
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^^^^^^^^^^^^^^^^
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- rename libdirs option to srcdirs?
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- can we derive module.name from module.source (taking just the filename base)?
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- can Position.file be a Path- making the source variable for nodes unnecessary?
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- refactor code to improve testability and other things, see [CompilerDevelopment](CompilerDevelopment.md)
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- simplify cx16.joystick_get2() once this cx16 rom issue is resolved: https://github.com/commanderx16/x16-rom/issues/203
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(I hope this will still be included into the final v39 roms release for the cx16)
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Future
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^^^^^^
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- get rid of all other TODO's in the code ;-)
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- see if we can remove more ".typeOrElse(DataType.UNDEFINED)"
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- should we introduce more optionals to get rid of more null pointers?
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- c64: make the graphics.BITMAP_ADDRESS configurable (VIC banking)
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- optimize several inner loops in gfx2 even further?
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- add modes 2 and 3 to gfx2 (lowres 4 color and 16 color)?
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- add a flood fill routine to gfx2?
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- add a diskio.f_seek() routine for the Cx16 that uses its seek dos api?
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- make it possible for diskio to read and write from more than one file at the same time (= use multiple io channels)?
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- refactor the asmgen into own project submodule
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- refactor the compiler optimizers into own project submodule
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- make it possible to use cpu opcodes such as 'nop' as variable names by prefixing all asm vars with something such as ``v_``
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- [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 ...
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Perhaps replace all uses of .proc/.pend by .block/.bend will fix that?
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(but we lose the optimizing aspect of the assembler where it strips out unused code.
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There's not really a dynamic switch possible as all assembly lib code is static and uses one or the other)
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- introduce byte-index operator to avoid index multiplications in loops over arrays?
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see https://www.reddit.com/r/programming/comments/alhj59/creating_a_programming_language_and_cross/eg898b9?utm_source=share&utm_medium=web2x&context=3
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More code optimizations
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^^^^^^^^^^^^^^^^^^^^^^^
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- a way to optimize if-statement codegen so that "if var & %10000" doesn't use stack & subroutine call, but also that the simple case "if X {...}" remains fast
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- detect proper variables that are written but never read - mark those as unused too and remove them, such as ``uword unused = memory("unused222", 20)`` - also remove this memory slab allocation
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- 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'
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- this removes the need for the BinExprSplitter (which is problematic now)
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