DEBUG Variables and Functions

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____________	char	*A6PTR = 0L;		/* traceback a6 starting address */
____________	char	*A7PTR = 0L;		/* traceback a7 starting address */

____________	char	*A7TOP = 0x000FFFFFL;	/* traceback stack top */

____________	short	debugsw;		/* debug enable switch */

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____________	SCPanic()	print the control variables
____________	SCdump()	print the control variables and the current score
____________	SCcrash()	print all of the score related data and the current score
____________	DOA()		do a simple stack traceback
____________	DB_Dump()	dump and reset debug trace area

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