mirror of
https://github.com/nathanriggs/AppleIIAsm-Collection.git
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c8cac53c5e
Massive updates that changes the way most subroutines are handled. Major bugfixes, various utilities added, started higher-level libraries.
39 lines
862 B
Plaintext
39 lines
862 B
Plaintext
*
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*``````````````````````````````*
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* DECLARATIONS.PUT *
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*- -*
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* USED IN CONJUNCTION WITH *
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* OTHER PUT FILES. DEFINES *
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* BASIC DECLARATIONS USED *
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* ACROSS DIFFERENT ROUTINES *
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*,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,*
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*
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** ADDRESS STORAGE LOCATIONS FOR
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** INDIRECT ADDRESSING.
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*
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ADDR1 EQU $06
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ADDR2 EQU $08
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ADDR3 EQU $EB
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ADDR4 EQU $ED
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*
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** SCRATCHPAD ZERO PAGE LOCATIONS AND
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** DEDICATED ZERO PAGE ADDRESS TO HOLD
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** A RETURN ADDRESS PASSED VIA THE STACK
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*
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SCRATCH EQU $19
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SCRATCH2 EQU $1E
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RETADR EQU $FE
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*
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** ZERO PAGE ADDRESSES DEDICATED TO PASSING
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** BACK RESULTS WHEN THERE ARE MORE THAN
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** THREE BYTES BEING PASSED (AXY) AND THE
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** USE OF THE STACK IS IMPRACTICAL OR TOO SLOW
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*
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RESULT EQU $FA
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RESULT2 EQU $FC
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*
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** VARIOUS HOOKS USED BY ALL ROUTINES
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*
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REENTRY EQU $3D0
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*
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