mirror of
https://github.com/RevCurtisP/C02.git
synced 2024-11-25 21:33:44 +00:00
26 lines
825 B
Plaintext
26 lines
825 B
Plaintext
|
/* Apple 1 Minimal Header File for Apple 1*/
|
||
|
|
|
||
|
|
/* Monitor Variables */
|
||
|
|
char xaml, xamh; //Examine Index
|
||
|
|
char stl, sth; //Store Index
|
||
|
|
char l,h; //Hex Data
|
||
|
|
char ysave; //Y Register Storage
|
||
|
|
char mode; //Mode: Store, Examine, Block Examine
|
||
|
|
char buffer[]; //Input Buffer
|
||
|
|
|
||
|
|
//PIA 6820 Registers
|
||
|
|
char kbd; //Keyboard Data
|
||
|
|
char kbdcr; //Keyboard Control Register
|
||
|
|
char dsp; //Display Data
|
||
|
|
char dspcr; //Display Control Register
|
||
|
|
|
||
|
|
//Monitor Subroutines
|
||
|
|
void echo(); //Print Character in Accumulator
|
||
|
|
void prbyte(); //Print Accumulator as Hexadadecimal number
|
||
|
|
void prhex(); //Print Low Nybble of Accumulator as Hex Digit
|
||
|
|
|
||
|
|
//System Subroutines
|
||
|
|
char plkey(); //Poll Keyboard for raw character
|
||
|
|
char rdkey(); //Wait for raw character from Keyboard
|
||
|
|
|