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44 lines
1.5 KiB
Plaintext
44 lines
1.5 KiB
Plaintext
/* run6502 Header File */
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//Platform Specific Constants
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#define DELKEY $08 //Delete/Backspace Key
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#define ESCKEY $18 //Escape/Stop Key
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#define RTNKEY $0A //Return/Enter Key
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#define SYSBFL 128 //System Buffer Length
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const char delnam; //Delete/Backspace Key Name
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const char escnam; //Escape/Stop Key Name
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const char rtnnam; //Return/Enter Key Name
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//Library Pointer Variables
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zeropage int srcptr, dstptr, bfrptr, blkptr;
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char bfrlo,bfrhi; //Buffer Pointer for Library Functions
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char stklo,stkhi; //Stack Pointer
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//Library Variables
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int blkbgn, blkend;
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char blklen; //Block Segment Length
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char stkslo, stkshi; //Stack Start Address
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char stkelo, stkehi; //Stsck End Address
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char random, rdseed; //Pseudo-Random Number Generation
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char temp0, temp1, temp2, temp3; //Temporary Storage
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char sysbfr[], sysbfp; //System String Buffer and Position
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//Memory Mapped I/O
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char putcon; //Write Character to Console
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char getcon; //Read Character from Console
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//System Subroutines
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void delchr(); //Delete previous character
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char getchr(); //Wait for character from Console
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char getkey(); //Read ASCII character from Console (Exits Emulator)
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void newlin(); //Advance cursor to beginning of next line
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char polkey(); //Poll Console for character (Exits Emulator)
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char putchr(); //Print ASCII character to Console
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void prbyte(); //Print Accumulator as Hexadadecimal number
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void prhex(); //Print Low Nybble of Accumulator as Hex Digit
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//System Labels
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start: //Start of Code
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exit: //Return to Operating System
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