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38 lines
1.2 KiB
Plaintext
38 lines
1.2 KiB
Plaintext
/* C02 Header File for Unexpanded VIC-20 */
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//Zero Page Variables
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char ptrhi, ptrlo; //Pointer Library
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char blkhi, blklo; //Block Pointer
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char srchi, srclo; //Source Pointer
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char dsthi, dstlo; //Destination Pointer
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//File Library Constants
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//define #fomax //Maximum Number of Open Files
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//define #fnmax //Maximum Filename Length
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//Static Library Variables
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char blklen; //Block Segment Length
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char blkshi, blkslo; //Block Start Address
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char blkehi, blkelo; //Block End Address
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//Temporary Variables - Used by Libraries
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char temp0, temp1, temp2, temp3;
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//Useful Areas in RAM
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char tbffr; //Tape Buffer (192 bytes)
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//Kernal Routines Memory Mapped I/O
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char chrin(); //Input Character to Channel
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void chrout(); //Output Character to Channel
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char getin(); //Read Character from Keyboard Buffer
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//System Subroutines
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char plkey(); //Poll Console for character
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char rdkey(); //Wait for character from Console
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char getkey(); //Read ASCII character from Console
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void newlin(); //Advance cursor to beginning of next line
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void prchr(); //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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