Data commit

Task/Matrix-transposition/68000-Assembly/matrix-transposition.68000

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+Transpose2DArray_B:
+	;INPUT:
+	;A0 = POINTER TO SOURCE ARRAY
+	;A1 = POINTER TO BACKUP AREA
+	;	(YOU NEED THE SAME AMOUNT OF FREE SPACE AS THE SOURCE ARRAY.)
+	;	(IT'S YOUR RESPONSIBILITY TO KNOW WHERE THAT IS.)
+	;D0.W = ARRAY ROW LENGTH-1
+        ;D1.W = ARRAY COLUMN HEIGHT-1
+
+	MOVEM.L D2-D7,-(SP)
+		MOVE.W D0,D4	;width - this copy is our loop counter
+
+.outerloop:
+		MOVE.W D1,D7	;height
+		MOVEQ.L #0,D3
+		MOVE.W D0,D6	;width - this copy is used to offset the array
+		ADDQ.L #1,D6
+
+.innerloop:
+		MOVE.B (A0,D3),(A1)+
+		ADD.W D6,D3
+		DBRA D7,.innerloop
+
+		ADDA.L #1,A0
+		DBRA D4,.outerloop
+
+	MOVEM.L (SP)+,D2-D7
+	RTS