Initial data commit

Task/Exponentiation-operator/68000-Assembly/exponentiation-operator.68000

@@ -0,0 +1,27 @@
+ExponentUnsigned:
+	;input: D0.W = BASE
+	;	D1.W = EXPONENT
+	;	OUTPUTS TO D0
+	;	NO OVERFLOW PROTECTION - USE AT YOUR OWN RISK!
+	;HIGH WORDS OF D0 AND D1 ARE CLEARED.
+	;clobbers D1
+	
+	MOVE.L D2,-(SP)
+		
+		;using DBRAs lets us simultaneously subtract and compare
+		DBRA D1,.test_if_one
+		MOVEQ.L #1,D0		;executes only if D1 was 0 to start with
+.test_if_one:		
+		DBRA D1,.go
+		bra .done		;executes only if D1 was 1 to start with
+.go:
+		;else, multiply D0 by its ORIGINAL self repeatedly.
+		MOVE.L D0,D2
+.loop:
+		MULU D0,D2
+		DBRA D1,.loop
+		
+		MOVE.L D2,D0
+.done:
+	MOVE.L (SP)+,D2
+	RTS