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21 lines
483 B
Plaintext
21 lines
483 B
Plaintext
/***************************************
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* ECHO - Demo C02 program for Apple 1 *
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* using minimal header file *
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* Echos typed keys to display *
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* ESC key aborts to monitor *
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***************************************/
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#include "a1min.h02"
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char key; //Key value
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main:
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while() {
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key = rdkey(); //Read keyboard
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if (key == $9B) //If ESCAPE pressed
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break; //exit loop
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echo(key); //Display character on screen
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}
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goto exit;
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