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36 lines
1.7 KiB
ReStructuredText
36 lines
1.7 KiB
ReStructuredText
TODO
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====
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c64 (and cx16 as well) fileselector has 2 issues when using ^^ubyte (code size and compiler error about return statement)
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cx16 life code size regression when using ^^ubyte
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pointer arithmetic precedence issue?:
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^^uword values
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cx16.r0 = values + (pos-1) ; different outcome as:
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cx16.r0 = values + pos -1
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sorting.gnomesort_uw() : when converted to ^^uword, the resulting code is MUCH larger than before (peek/poke code gen problem?)
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(same with shellsort_uw and others)
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this doesn't work but probably should:
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^^uword xpositions_ptr
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repeat num_sprites {
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pokew(cx16.VERA_DATA0, xpositions_ptr^^) ; must set data0 and data1 at the same time
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xpositions_ptr ++
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}
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STRUCTS and TYPED POINTERS (6502 codegen specific)
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--------------------------------------------------
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- implement the TODO's in PointerAssignmentsGen.
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- fix code size regressions (if any left)
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- update structpointers.rst docs with 6502 specific things?
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- optimize deref() to not always add the field offset to the pointer value but using it in the Y register instead
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- optimize deref() when field offset is 0, don't use a temporary at all if the var is in zp already (maybe already solved by the previous one?)
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- optimize the multiplications in assignAddressOfIndexedPointer()
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- optimize the float copying in assignIndexedPointer() (also word?)
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- implement some more struct instance assignments (via memcopy) in CodeDesugarer (see the TODO) (add to documentation as well, paragraph 'Structs')
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- try to optimize pointer arithmetic used in peek/poke a bit more so the routines in sorting module can use typed pointers without increasing code size
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