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An isomorphic BASIC language compiler for retrocomputers
License: Apache License 2.0
This project forked from spotlessmind1975/ugbasic
An isomorphic BASIC language compiler for retrocomputers
License: Apache License 2.0
We shall collect info about temporaries during peephole analysis:
When peephole first finds CMPX _Ttmp<num>
add _Ttmp<num> equ *-2
right after so that _Ttmp<num>
is now inlined in the code. We must check that the temporary is 2bytes, and remove its previous definition
This makes code:
This reduces memory footprint
Sort collected temporaries by nums of Read+Write, and if enough room remains in direct page (how to know this?), move top used temporaries in there. Then in code replace all extended access by direct page access. This reduces the memory footprint and makes the code run faster.
This is caused by a line in the ASM being longer than MAX_TEMPORARY_STORAGE.
This is caused by a line in the ASM being longer than MAX_TEMPORARY_STORAGE.
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