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todo porting guide

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Irmen de Jong 2021-12-30 18:20:09 +01:00
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docs/source/todo.rst
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@ -14,6 +14,7 @@ Blocked by an official Commander-x16 v39 release
Future
^^^^^^
- make some sort of "porting guide" with things required to support a new target platform
- make it possible to use cpu opcodes such as 'nop' as variable names by prefixing all asm vars with something such as ``v_``
then we can get rid of the instruction lists in the machinedefinitions as well?
- fix the asm-labels problem (github issue #62)
@ -41,7 +42,6 @@ Future
More code optimization ideas
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- 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
-
- byte typed expressions should be evaluated in the accumulator where possible, without (temp)var
for instance value = otherbyte >> 1 --> lda otherbite ; lsr a; sta value
- 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'