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26 lines
825 B
Plaintext
26 lines
825 B
Plaintext
/* Apple 1 Minimal Header File for Apple 1*/
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/* Monitor Variables */
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char xaml, xamh; //Examine Index
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char stl, sth; //Store Index
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char l,h; //Hex Data
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char ysave; //Y Register Storage
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char mode; //Mode: Store, Examine, Block Examine
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char buffer[]; //Input Buffer
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//PIA 6820 Registers
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char kbd; //Keyboard Data
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char kbdcr; //Keyboard Control Register
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char dsp; //Display Data
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char dspcr; //Display Control Register
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//Monitor Subroutines
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void echo(); //Print Character in Accumulator
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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 Subroutines
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char plkey(); //Poll Keyboard for raw character
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char rdkey(); //Wait for raw character from Keyboard
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