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Added some reserved addresses for the BASIC sinus generation.
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@ -11,10 +11,10 @@ import java.util.*;
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/**
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/**
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* Use the call graph to coalesce zero page registers.
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* Use the call graph to coalesce zero page registers.
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* For all variables:
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* For each live range equivalence class:
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* - Look up through the call graph and avoid all variables declared in the scopes there
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* - Look up through the call graph and avoid all variables declared in the scopes there
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* - Go through the zero pages from low to high and try to coalesce with the lowest possible one.
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* - Go through already handled live range equivalence classes and if any exist with no scope overlap with the call graph - try to coalesce
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*
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* - Add to the list of already handled live range equivalence classes
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*/
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*/
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public class Pass4ZeroPageCoalesceCallGraph extends Pass2Base {
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public class Pass4ZeroPageCoalesceCallGraph extends Pass2Base {
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@ -172,6 +172,9 @@ void gen_chargen_sprite(byte ch, byte* sprite) {
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asm { cli }
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asm { cli }
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}
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}
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// Reserve zeropage addresses used by the BASIC FP operations
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#reserve(0x07, 0x0d, 0x0e, 0x12)
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// Generate a sinus table using BASIC floats
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// Generate a sinus table using BASIC floats
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// - sintab is a pointer to the table to fill
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// - sintab is a pointer to the table to fill
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// - length is the length of the sine table
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// - length is the length of the sine table
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