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46 lines
1.6 KiB
Plaintext
46 lines
1.6 KiB
Plaintext
/* Apple ][ 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 $1B //Escape/Stop Key
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#define RTNKEY $0D //Return/Enter Key
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/* Standard Library Pointers */
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char srclo,srchi; //Source String Pointer for Library Functions
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char dstlo,dsthi; //Destination String Pointer for Library Functions
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char bfrlo,bfrhi; //Buffer Pointer for Library Functions
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char blklo,blkhi; //Block Segment Pointer
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char stklo,stkhi; //System Pointer
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/* Standard Library Variables */
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char blkslo, blkshi; //Block Start Address
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char blkelo, blkehi; //Block End Address
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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 Variables
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/* Platform Specific Variables */
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char invflg; //Video Invert Mask
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/* Keyboard I/O */
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char kbd; //Keyboard Data Register
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char akd; //Keyboard Strobe Register
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/* Monitor Subroutines */
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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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void clrscr(); //Clear the Screen
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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
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char getpos(); //Get Cursor Position
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char getsiz(); //Get Screen Size
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void newlin(); //Advance cursor to beginning of next line
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char polkey(); //Poll Console for character
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char putchr(); //Print ASCII character to Console
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void setpos(); //Set Cursor Position
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