/ CONWAY'S GAME OF LIFE - BREED LIFE ON YOUR PDP8!

/********************************************************************
/********************************************************************
/
/ PAL-8 IMPLEMENTATION OF CONWAY'S GAME OF LIFE
/
/ PHILIPP HACHTMANN, JULY 2010
/
/ REVISIONS:
/
/            2010-07-24 - INITIAL RELEASE



/********************************************************************
/********************************************************************
/ DISPLAY API FOR PLUGGABLE DISPLAY DRIVERS
/
/ THE DRIVER MUST KEEP TRACK OF CURSOR POSITIONS AND DECIDE
/ HOW TO REALIZE THE DESIRED FUNCTIONALITY.

/ THE DRIVER USES THE FOLLOWING CALL TO SEND A BYTE DOWN THE LINE:
/
/	JMS I	XTTOUT	WITH DATA IN AC
/ ... AND NOTHING ELSE!
/
/ THE DRIVER IS OBLIGED TO SAVE AC AND LINK ON EVERY CALL.

/*************************************************
/ DSSET - SET THE CURSOR TO A SPECIFIED POSITION
/
/	JMS	DSSET	
/	<COLUMN>
/	<ROW>
/	ERROR RETURN
/	NORMAL RETURN

/*************************************************
/ DSCLS - CLEAR SCREEN
/
/	JMS	DSCLS
/	ERROR RETURN
/	NORMAL RETURN

/*************************************************
/ DSEOL - CLEAR FROM CURSOR POSITION TO END OF LINE
/
/ THE CURRENT CURSOR POSITION REMAINS UNCHANGED.
/
/	JMS	DSCLS
/	ERROR RETURN
/	NORMAL RETURN

/*************************************************
/ DSEOS - CLEAR FROM CURSOR POSITION TO END OF SCREEN
/
/ THE CURRENT CURSOR POSITION REMAINS UNCHANGED.
/
/	JMS	DSCLS
/	ERROR RETURN
/	NORMAL RETURN

/*************************************************
/ DSOUT	- SEND A CHARACTER TO THE SCREEN
/
/ ONLY PRINTABLE CHARACTERS AND CR/LF ARE ALLOWED!
/
/	JMS	DSOUT	WITH ARGUMENT IN AC
/	ERROR RETURN
/	NORMAL RETURN


/*************************************************
/ DSBEL - MAKE SOME NOISE
/
/	JMS	DSBEL
/	ERROR RETURN
/	NORMAL RETURN

/*************************************************