diff --git a/quarter_selector_8b/double_selector_8b.bdf b/quarter_selector_8b/double_selector_8b.bdf
new file mode 100644
index 0000000..b616c98
--- /dev/null
+++ b/quarter_selector_8b/double_selector_8b.bdf
@@ -0,0 +1,1791 @@
+/*
+WARNING: Do NOT edit the input and output ports in this file in a text
+editor if you plan to continue editing the block that represents it in
+the Block Editor! File corruption is VERY likely to occur.
+*/
+/*
+Copyright (C) 1991-2009 Altera Corporation
+Your use of Altera Corporation's design tools, logic functions 
+and other software and tools, and its AMPP partner logic 
+functions, and any output files from any of the foregoing 
+(including device programming or simulation files), and any 
+associated documentation or information are expressly subject 
+to the terms and conditions of the Altera Program License 
+Subscription Agreement, Altera MegaCore Function License 
+Agreement, or other applicable license agreement, including, 
+without limitation, that your use is for the sole purpose of 
+programming logic devices manufactured by Altera and sold by 
+Altera or its authorized distributors.  Please refer to the 
+applicable agreement for further details.
+*/
+//#pragma file_not_in_maxplusii_format
+(header "graphic" (version "1.3"))
+(pin
+	(input)
+	(rect 64 272 232 288)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "a0" (rect 5 0 16 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 64 296 232 312)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "a1" (rect 5 0 16 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 64 320 232 336)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "a2" (rect 5 0 16 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 64 344 232 360)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "a3" (rect 5 0 16 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 64 368 232 384)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "a4" (rect 5 0 16 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 64 392 232 408)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "a5" (rect 5 0 16 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 64 416 232 432)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "a6" (rect 5 0 16 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 64 440 232 456)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "a7" (rect 5 0 16 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 64 520 232 536)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "b0" (rect 5 0 16 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 64 544 232 560)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "b1" (rect 5 0 16 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 64 568 232 584)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "b2" (rect 5 0 16 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 64 592 232 608)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "b3" (rect 5 0 16 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 64 616 232 632)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "b4" (rect 5 0 16 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 64 640 232 656)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "b5" (rect 5 0 16 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 64 664 232 680)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "b6" (rect 5 0 16 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 64 688 232 704)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "b7" (rect 5 0 16 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 40 784 208 800)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "AY" (rect 5 0 20 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 40 808 208 824)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "BY" (rect 5 0 20 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(output)
+	(rect 816 72 992 88)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "Y0" (rect 90 0 104 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
+		(line (pt 0 8)(pt 52 8)(line_width 1))
+		(line (pt 52 4)(pt 78 4)(line_width 1))
+		(line (pt 52 12)(pt 78 12)(line_width 1))
+		(line (pt 52 12)(pt 52 4)(line_width 1))
+		(line (pt 78 4)(pt 82 8)(line_width 1))
+		(line (pt 82 8)(pt 78 12)(line_width 1))
+		(line (pt 78 12)(pt 82 8)(line_width 1))
+	)
+)
+(pin
+	(output)
+	(rect 816 128 992 144)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "Y1" (rect 90 0 104 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
+		(line (pt 0 8)(pt 52 8)(line_width 1))
+		(line (pt 52 4)(pt 78 4)(line_width 1))
+		(line (pt 52 12)(pt 78 12)(line_width 1))
+		(line (pt 52 12)(pt 52 4)(line_width 1))
+		(line (pt 78 4)(pt 82 8)(line_width 1))
+		(line (pt 82 8)(pt 78 12)(line_width 1))
+		(line (pt 78 12)(pt 82 8)(line_width 1))
+	)
+)
+(pin
+	(output)
+	(rect 816 184 992 200)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "Y2" (rect 90 0 104 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
+		(line (pt 0 8)(pt 52 8)(line_width 1))
+		(line (pt 52 4)(pt 78 4)(line_width 1))
+		(line (pt 52 12)(pt 78 12)(line_width 1))
+		(line (pt 52 12)(pt 52 4)(line_width 1))
+		(line (pt 78 4)(pt 82 8)(line_width 1))
+		(line (pt 82 8)(pt 78 12)(line_width 1))
+		(line (pt 78 12)(pt 82 8)(line_width 1))
+	)
+)
+(pin
+	(output)
+	(rect 816 240 992 256)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "Y3" (rect 90 0 104 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
+		(line (pt 0 8)(pt 52 8)(line_width 1))
+		(line (pt 52 4)(pt 78 4)(line_width 1))
+		(line (pt 52 12)(pt 78 12)(line_width 1))
+		(line (pt 52 12)(pt 52 4)(line_width 1))
+		(line (pt 78 4)(pt 82 8)(line_width 1))
+		(line (pt 82 8)(pt 78 12)(line_width 1))
+		(line (pt 78 12)(pt 82 8)(line_width 1))
+	)
+)
+(pin
+	(output)
+	(rect 816 296 992 312)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "Y4" (rect 90 0 104 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
+		(line (pt 0 8)(pt 52 8)(line_width 1))
+		(line (pt 52 4)(pt 78 4)(line_width 1))
+		(line (pt 52 12)(pt 78 12)(line_width 1))
+		(line (pt 52 12)(pt 52 4)(line_width 1))
+		(line (pt 78 4)(pt 82 8)(line_width 1))
+		(line (pt 82 8)(pt 78 12)(line_width 1))
+		(line (pt 78 12)(pt 82 8)(line_width 1))
+	)
+)
+(pin
+	(output)
+	(rect 816 352 992 368)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "Y5" (rect 90 0 104 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
+		(line (pt 0 8)(pt 52 8)(line_width 1))
+		(line (pt 52 4)(pt 78 4)(line_width 1))
+		(line (pt 52 12)(pt 78 12)(line_width 1))
+		(line (pt 52 12)(pt 52 4)(line_width 1))
+		(line (pt 78 4)(pt 82 8)(line_width 1))
+		(line (pt 82 8)(pt 78 12)(line_width 1))
+		(line (pt 78 12)(pt 82 8)(line_width 1))
+	)
+)
+(pin
+	(output)
+	(rect 816 408 992 424)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "Y6" (rect 90 0 104 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
+		(line (pt 0 8)(pt 52 8)(line_width 1))
+		(line (pt 52 4)(pt 78 4)(line_width 1))
+		(line (pt 52 12)(pt 78 12)(line_width 1))
+		(line (pt 52 12)(pt 52 4)(line_width 1))
+		(line (pt 78 4)(pt 82 8)(line_width 1))
+		(line (pt 82 8)(pt 78 12)(line_width 1))
+		(line (pt 78 12)(pt 82 8)(line_width 1))
+	)
+)
+(pin
+	(output)
+	(rect 816 464 992 480)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "Y7" (rect 90 0 104 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
+		(line (pt 0 8)(pt 52 8)(line_width 1))
+		(line (pt 52 4)(pt 78 4)(line_width 1))
+		(line (pt 52 12)(pt 78 12)(line_width 1))
+		(line (pt 52 12)(pt 52 4)(line_width 1))
+		(line (pt 78 4)(pt 82 8)(line_width 1))
+		(line (pt 82 8)(pt 78 12)(line_width 1))
+		(line (pt 78 12)(pt 82 8)(line_width 1))
+	)
+)
+(symbol
+	(rect 368 240 432 288)
+	(text "AND2" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "inst" (rect 3 37 20 49)(font "Arial" ))
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 14 16)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 14 32)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 42 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 12)(pt 30 12)(line_width 1))
+		(line (pt 14 37)(pt 31 37)(line_width 1))
+		(line (pt 14 12)(pt 14 37)(line_width 1))
+		(arc (pt 31 37)(pt 30 12)(rect 18 12 43 37)(line_width 1))
+	)
+)
+(symbol
+	(rect 368 296 432 344)
+	(text "AND2" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "inst18" (rect 3 37 32 49)(font "Arial" ))
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 14 16)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 14 32)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 42 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 12)(pt 30 12)(line_width 1))
+		(line (pt 14 37)(pt 31 37)(line_width 1))
+		(line (pt 14 12)(pt 14 37)(line_width 1))
+		(arc (pt 31 37)(pt 30 12)(rect 18 12 43 37)(line_width 1))
+	)
+)
+(symbol
+	(rect 368 352 432 400)
+	(text "AND2" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "inst19" (rect 3 37 32 49)(font "Arial" ))
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 14 16)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 14 32)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 42 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 12)(pt 30 12)(line_width 1))
+		(line (pt 14 37)(pt 31 37)(line_width 1))
+		(line (pt 14 12)(pt 14 37)(line_width 1))
+		(arc (pt 31 37)(pt 30 12)(rect 18 12 43 37)(line_width 1))
+	)
+)
+(symbol
+	(rect 368 408 432 456)
+	(text "AND2" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "inst20" (rect 3 37 32 49)(font "Arial" ))
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 14 16)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 14 32)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 42 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 12)(pt 30 12)(line_width 1))
+		(line (pt 14 37)(pt 31 37)(line_width 1))
+		(line (pt 14 12)(pt 14 37)(line_width 1))
+		(arc (pt 31 37)(pt 30 12)(rect 18 12 43 37)(line_width 1))
+	)
+)
+(symbol
+	(rect 368 184 432 232)
+	(text "AND2" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "inst21" (rect 3 37 32 49)(font "Arial" ))
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 14 16)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 14 32)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 42 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 12)(pt 30 12)(line_width 1))
+		(line (pt 14 37)(pt 31 37)(line_width 1))
+		(line (pt 14 12)(pt 14 37)(line_width 1))
+		(arc (pt 31 37)(pt 30 12)(rect 18 12 43 37)(line_width 1))
+	)
+)
+(symbol
+	(rect 368 128 432 176)
+	(text "AND2" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "inst22" (rect 3 37 32 49)(font "Arial" ))
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 14 16)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 14 32)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 42 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 12)(pt 30 12)(line_width 1))
+		(line (pt 14 37)(pt 31 37)(line_width 1))
+		(line (pt 14 12)(pt 14 37)(line_width 1))
+		(arc (pt 31 37)(pt 30 12)(rect 18 12 43 37)(line_width 1))
+	)
+)
+(symbol
+	(rect 368 72 432 120)
+	(text "AND2" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "inst23" (rect 3 37 32 49)(font "Arial" ))
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 14 16)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 14 32)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 42 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 12)(pt 30 12)(line_width 1))
+		(line (pt 14 37)(pt 31 37)(line_width 1))
+		(line (pt 14 12)(pt 14 37)(line_width 1))
+		(arc (pt 31 37)(pt 30 12)(rect 18 12 43 37)(line_width 1))
+	)
+)
+(symbol
+	(rect 368 16 432 64)
+	(text "AND2" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "inst24" (rect 3 37 32 49)(font "Arial" ))
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 14 16)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 14 32)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 42 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 12)(pt 30 12)(line_width 1))
+		(line (pt 14 37)(pt 31 37)(line_width 1))
+		(line (pt 14 12)(pt 14 37)(line_width 1))
+		(arc (pt 31 37)(pt 30 12)(rect 18 12 43 37)(line_width 1))
+	)
+)
+(symbol
+	(rect 368 504 432 552)
+	(text "AND2" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "inst25" (rect 3 37 32 49)(font "Arial" ))
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 14 16)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 14 32)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 42 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 12)(pt 30 12)(line_width 1))
+		(line (pt 14 37)(pt 31 37)(line_width 1))
+		(line (pt 14 12)(pt 14 37)(line_width 1))
+		(arc (pt 31 37)(pt 30 12)(rect 18 12 43 37)(line_width 1))
+	)
+)
+(symbol
+	(rect 368 560 432 608)
+	(text "AND2" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "inst26" (rect 3 37 32 49)(font "Arial" ))
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 14 16)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 14 32)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 42 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 12)(pt 30 12)(line_width 1))
+		(line (pt 14 37)(pt 31 37)(line_width 1))
+		(line (pt 14 12)(pt 14 37)(line_width 1))
+		(arc (pt 31 37)(pt 30 12)(rect 18 12 43 37)(line_width 1))
+	)
+)
+(symbol
+	(rect 368 616 432 664)
+	(text "AND2" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "inst27" (rect 3 37 32 49)(font "Arial" ))
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 14 16)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 14 32)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 42 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 12)(pt 30 12)(line_width 1))
+		(line (pt 14 37)(pt 31 37)(line_width 1))
+		(line (pt 14 12)(pt 14 37)(line_width 1))
+		(arc (pt 31 37)(pt 30 12)(rect 18 12 43 37)(line_width 1))
+	)
+)
+(symbol
+	(rect 368 672 432 720)
+	(text "AND2" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "inst28" (rect 3 37 32 49)(font "Arial" ))
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 14 16)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 14 32)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 42 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 12)(pt 30 12)(line_width 1))
+		(line (pt 14 37)(pt 31 37)(line_width 1))
+		(line (pt 14 12)(pt 14 37)(line_width 1))
+		(arc (pt 31 37)(pt 30 12)(rect 18 12 43 37)(line_width 1))
+	)
+)
+(symbol
+	(rect 368 728 432 776)
+	(text "AND2" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "inst29" (rect 3 37 32 49)(font "Arial" ))
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 14 16)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 14 32)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 42 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 12)(pt 30 12)(line_width 1))
+		(line (pt 14 37)(pt 31 37)(line_width 1))
+		(line (pt 14 12)(pt 14 37)(line_width 1))
+		(arc (pt 31 37)(pt 30 12)(rect 18 12 43 37)(line_width 1))
+	)
+)
+(symbol
+	(rect 368 784 432 832)
+	(text "AND2" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "inst30" (rect 3 37 32 49)(font "Arial" ))
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 14 16)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 14 32)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 42 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 12)(pt 30 12)(line_width 1))
+		(line (pt 14 37)(pt 31 37)(line_width 1))
+		(line (pt 14 12)(pt 14 37)(line_width 1))
+		(arc (pt 31 37)(pt 30 12)(rect 18 12 43 37)(line_width 1))
+	)
+)
+(symbol
+	(rect 368 840 432 888)
+	(text "AND2" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "inst31" (rect 3 37 32 49)(font "Arial" ))
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 14 16)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 14 32)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 42 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 12)(pt 30 12)(line_width 1))
+		(line (pt 14 37)(pt 31 37)(line_width 1))
+		(line (pt 14 12)(pt 14 37)(line_width 1))
+		(arc (pt 31 37)(pt 30 12)(rect 18 12 43 37)(line_width 1))
+	)
+)
+(symbol
+	(rect 368 896 432 944)
+	(text "AND2" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "inst32" (rect 3 37 32 49)(font "Arial" ))
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 14 16)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 14 32)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 42 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 12)(pt 30 12)(line_width 1))
+		(line (pt 14 37)(pt 31 37)(line_width 1))
+		(line (pt 14 12)(pt 14 37)(line_width 1))
+		(arc (pt 31 37)(pt 30 12)(rect 18 12 43 37)(line_width 1))
+	)
+)
+(symbol
+	(rect 664 56 728 104)
+	(text "OR2" (rect 1 0 19 10)(font "Arial" (font_size 6)))
+	(text "inst1" (rect 3 37 26 49)(font "Arial" ))
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 15 32)(line_width 1))
+	)
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 15 16)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 48 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 36)(pt 25 36)(line_width 1))
+		(line (pt 14 13)(pt 25 13)(line_width 1))
+		(arc (pt 7 29)(pt 7 19)(rect -14 8 19 41)(line_width 1))
+		(arc (pt 49 24)(pt 25 13)(rect -6 13 57 76)(line_width 1))
+		(arc (pt 25 35)(pt 49 24)(rect -6 -27 57 36)(line_width 1))
+	)
+)
+(symbol
+	(rect 664 112 728 160)
+	(text "OR2" (rect 1 0 19 10)(font "Arial" (font_size 6)))
+	(text "inst2" (rect 3 37 26 49)(font "Arial" ))
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 15 32)(line_width 1))
+	)
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 15 16)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 48 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 36)(pt 25 36)(line_width 1))
+		(line (pt 14 13)(pt 25 13)(line_width 1))
+		(arc (pt 7 29)(pt 7 19)(rect -14 8 19 41)(line_width 1))
+		(arc (pt 49 24)(pt 25 13)(rect -6 13 57 76)(line_width 1))
+		(arc (pt 25 35)(pt 49 24)(rect -6 -27 57 36)(line_width 1))
+	)
+)
+(symbol
+	(rect 664 168 728 216)
+	(text "OR2" (rect 1 0 19 10)(font "Arial" (font_size 6)))
+	(text "inst3" (rect 3 37 26 49)(font "Arial" ))
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 15 32)(line_width 1))
+	)
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 15 16)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 48 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 36)(pt 25 36)(line_width 1))
+		(line (pt 14 13)(pt 25 13)(line_width 1))
+		(arc (pt 7 29)(pt 7 19)(rect -14 8 19 41)(line_width 1))
+		(arc (pt 49 24)(pt 25 13)(rect -6 13 57 76)(line_width 1))
+		(arc (pt 25 35)(pt 49 24)(rect -6 -27 57 36)(line_width 1))
+	)
+)
+(symbol
+	(rect 664 224 728 272)
+	(text "OR2" (rect 1 0 19 10)(font "Arial" (font_size 6)))
+	(text "inst4" (rect 3 37 26 49)(font "Arial" ))
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 15 32)(line_width 1))
+	)
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 15 16)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 48 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 36)(pt 25 36)(line_width 1))
+		(line (pt 14 13)(pt 25 13)(line_width 1))
+		(arc (pt 7 29)(pt 7 19)(rect -14 8 19 41)(line_width 1))
+		(arc (pt 49 24)(pt 25 13)(rect -6 13 57 76)(line_width 1))
+		(arc (pt 25 35)(pt 49 24)(rect -6 -27 57 36)(line_width 1))
+	)
+)
+(symbol
+	(rect 664 280 728 328)
+	(text "OR2" (rect 1 0 19 10)(font "Arial" (font_size 6)))
+	(text "inst5" (rect 3 37 26 49)(font "Arial" ))
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 15 32)(line_width 1))
+	)
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 15 16)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 48 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 36)(pt 25 36)(line_width 1))
+		(line (pt 14 13)(pt 25 13)(line_width 1))
+		(arc (pt 7 29)(pt 7 19)(rect -14 8 19 41)(line_width 1))
+		(arc (pt 49 24)(pt 25 13)(rect -6 13 57 76)(line_width 1))
+		(arc (pt 25 35)(pt 49 24)(rect -6 -27 57 36)(line_width 1))
+	)
+)
+(symbol
+	(rect 664 336 728 384)
+	(text "OR2" (rect 1 0 19 10)(font "Arial" (font_size 6)))
+	(text "inst6" (rect 3 37 26 49)(font "Arial" ))
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 15 32)(line_width 1))
+	)
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 15 16)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 48 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 36)(pt 25 36)(line_width 1))
+		(line (pt 14 13)(pt 25 13)(line_width 1))
+		(arc (pt 7 29)(pt 7 19)(rect -14 8 19 41)(line_width 1))
+		(arc (pt 49 24)(pt 25 13)(rect -6 13 57 76)(line_width 1))
+		(arc (pt 25 35)(pt 49 24)(rect -6 -27 57 36)(line_width 1))
+	)
+)
+(symbol
+	(rect 664 392 728 440)
+	(text "OR2" (rect 1 0 19 10)(font "Arial" (font_size 6)))
+	(text "inst7" (rect 3 37 26 49)(font "Arial" ))
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 15 32)(line_width 1))
+	)
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 15 16)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 48 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 36)(pt 25 36)(line_width 1))
+		(line (pt 14 13)(pt 25 13)(line_width 1))
+		(arc (pt 7 29)(pt 7 19)(rect -14 8 19 41)(line_width 1))
+		(arc (pt 49 24)(pt 25 13)(rect -6 13 57 76)(line_width 1))
+		(arc (pt 25 35)(pt 49 24)(rect -6 -27 57 36)(line_width 1))
+	)
+)
+(symbol
+	(rect 664 448 728 496)
+	(text "OR2" (rect 1 0 19 10)(font "Arial" (font_size 6)))
+	(text "inst8" (rect 3 37 26 49)(font "Arial" ))
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 15 32)(line_width 1))
+	)
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 15 16)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 48 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 36)(pt 25 36)(line_width 1))
+		(line (pt 14 13)(pt 25 13)(line_width 1))
+		(arc (pt 7 29)(pt 7 19)(rect -14 8 19 41)(line_width 1))
+		(arc (pt 49 24)(pt 25 13)(rect -6 13 57 76)(line_width 1))
+		(arc (pt 25 35)(pt 49 24)(rect -6 -27 57 36)(line_width 1))
+	)
+)
+(connector
+	(pt 232 280)
+	(pt 240 280)
+)
+(connector
+	(pt 240 32)
+	(pt 240 280)
+)
+(connector
+	(pt 240 32)
+	(pt 368 32)
+)
+(connector
+	(pt 232 304)
+	(pt 248 304)
+)
+(connector
+	(pt 248 304)
+	(pt 248 88)
+)
+(connector
+	(pt 248 88)
+	(pt 368 88)
+)
+(connector
+	(pt 264 328)
+	(pt 232 328)
+)
+(connector
+	(pt 264 328)
+	(pt 264 144)
+)
+(connector
+	(pt 264 144)
+	(pt 368 144)
+)
+(connector
+	(pt 232 352)
+	(pt 272 352)
+)
+(connector
+	(pt 272 352)
+	(pt 272 200)
+)
+(connector
+	(pt 272 200)
+	(pt 368 200)
+)
+(connector
+	(pt 232 376)
+	(pt 280 376)
+)
+(connector
+	(pt 280 376)
+	(pt 280 256)
+)
+(connector
+	(pt 280 256)
+	(pt 368 256)
+)
+(connector
+	(pt 232 400)
+	(pt 288 400)
+)
+(connector
+	(pt 288 400)
+	(pt 288 312)
+)
+(connector
+	(pt 288 312)
+	(pt 368 312)
+)
+(connector
+	(pt 232 424)
+	(pt 296 424)
+)
+(connector
+	(pt 296 424)
+	(pt 296 368)
+)
+(connector
+	(pt 296 368)
+	(pt 368 368)
+)
+(connector
+	(pt 232 448)
+	(pt 304 448)
+)
+(connector
+	(pt 304 448)
+	(pt 304 424)
+)
+(connector
+	(pt 304 424)
+	(pt 368 424)
+)
+(connector
+	(pt 368 48)
+	(pt 216 48)
+)
+(connector
+	(pt 368 104)
+	(pt 216 104)
+)
+(connector
+	(pt 368 160)
+	(pt 216 160)
+)
+(connector
+	(pt 368 216)
+	(pt 216 216)
+)
+(connector
+	(pt 368 272)
+	(pt 216 272)
+)
+(connector
+	(pt 368 328)
+	(pt 304 328)
+)
+(connector
+	(pt 304 344)
+	(pt 304 328)
+)
+(connector
+	(pt 304 344)
+	(pt 216 344)
+)
+(connector
+	(pt 368 384)
+	(pt 216 384)
+)
+(connector
+	(pt 368 440)
+	(pt 216 440)
+)
+(connector
+	(pt 232 528)
+	(pt 240 528)
+)
+(connector
+	(pt 240 528)
+	(pt 240 520)
+)
+(connector
+	(pt 240 520)
+	(pt 368 520)
+)
+(connector
+	(pt 232 552)
+	(pt 360 552)
+)
+(connector
+	(pt 360 552)
+	(pt 360 576)
+)
+(connector
+	(pt 360 576)
+	(pt 368 576)
+)
+(connector
+	(pt 232 576)
+	(pt 352 576)
+)
+(connector
+	(pt 352 576)
+	(pt 352 632)
+)
+(connector
+	(pt 352 632)
+	(pt 368 632)
+)
+(connector
+	(pt 232 600)
+	(pt 344 600)
+)
+(connector
+	(pt 344 600)
+	(pt 344 688)
+)
+(connector
+	(pt 344 688)
+	(pt 368 688)
+)
+(connector
+	(pt 232 624)
+	(pt 336 624)
+)
+(connector
+	(pt 336 744)
+	(pt 336 624)
+)
+(connector
+	(pt 336 744)
+	(pt 368 744)
+)
+(connector
+	(pt 232 648)
+	(pt 328 648)
+)
+(connector
+	(pt 328 648)
+	(pt 328 800)
+)
+(connector
+	(pt 328 800)
+	(pt 368 800)
+)
+(connector
+	(pt 232 672)
+	(pt 320 672)
+)
+(connector
+	(pt 320 856)
+	(pt 320 672)
+)
+(connector
+	(pt 320 856)
+	(pt 368 856)
+)
+(connector
+	(pt 232 696)
+	(pt 304 696)
+)
+(connector
+	(pt 304 912)
+	(pt 304 696)
+)
+(connector
+	(pt 304 912)
+	(pt 368 912)
+)
+(connector
+	(pt 368 536)
+	(pt 288 536)
+)
+(connector
+	(pt 368 592)
+	(pt 288 592)
+)
+(connector
+	(pt 368 648)
+	(pt 352 648)
+)
+(connector
+	(pt 352 648)
+	(pt 352 640)
+)
+(connector
+	(pt 352 640)
+	(pt 288 640)
+)
+(connector
+	(pt 368 704)
+	(pt 288 704)
+)
+(connector
+	(pt 368 760)
+	(pt 288 760)
+)
+(connector
+	(pt 368 872)
+	(pt 288 872)
+)
+(connector
+	(pt 368 928)
+	(pt 288 928)
+)
+(connector
+	(pt 432 40)
+	(pt 448 40)
+)
+(connector
+	(pt 448 72)
+	(pt 448 40)
+)
+(connector
+	(pt 448 72)
+	(pt 664 72)
+)
+(connector
+	(pt 432 96)
+	(pt 448 96)
+)
+(connector
+	(pt 448 128)
+	(pt 448 96)
+)
+(connector
+	(pt 448 128)
+	(pt 664 128)
+)
+(connector
+	(pt 432 152)
+	(pt 448 152)
+)
+(connector
+	(pt 448 184)
+	(pt 448 152)
+)
+(connector
+	(pt 448 184)
+	(pt 664 184)
+)
+(connector
+	(pt 432 208)
+	(pt 448 208)
+)
+(connector
+	(pt 448 208)
+	(pt 448 240)
+)
+(connector
+	(pt 432 264)
+	(pt 448 264)
+)
+(connector
+	(pt 448 296)
+	(pt 448 264)
+)
+(connector
+	(pt 448 296)
+	(pt 664 296)
+)
+(connector
+	(pt 432 320)
+	(pt 448 320)
+)
+(connector
+	(pt 448 352)
+	(pt 448 320)
+)
+(connector
+	(pt 448 352)
+	(pt 664 352)
+)
+(connector
+	(pt 432 376)
+	(pt 448 376)
+)
+(connector
+	(pt 448 376)
+	(pt 448 408)
+)
+(connector
+	(pt 448 408)
+	(pt 664 408)
+)
+(connector
+	(pt 432 432)
+	(pt 448 432)
+)
+(connector
+	(pt 448 464)
+	(pt 448 432)
+)
+(connector
+	(pt 448 464)
+	(pt 664 464)
+)
+(connector
+	(pt 432 528)
+	(pt 488 528)
+)
+(connector
+	(pt 488 528)
+	(pt 488 88)
+)
+(connector
+	(pt 488 88)
+	(pt 664 88)
+)
+(connector
+	(pt 432 584)
+	(pt 504 584)
+)
+(connector
+	(pt 504 584)
+	(pt 504 144)
+)
+(connector
+	(pt 504 144)
+	(pt 664 144)
+)
+(connector
+	(pt 432 640)
+	(pt 528 640)
+)
+(connector
+	(pt 528 640)
+	(pt 528 200)
+)
+(connector
+	(pt 528 200)
+	(pt 664 200)
+)
+(connector
+	(pt 432 696)
+	(pt 552 696)
+)
+(connector
+	(pt 552 256)
+	(pt 664 256)
+)
+(connector
+	(pt 552 256)
+	(pt 552 696)
+)
+(connector
+	(pt 432 752)
+	(pt 576 752)
+)
+(connector
+	(pt 576 752)
+	(pt 576 312)
+)
+(connector
+	(pt 576 312)
+	(pt 664 312)
+)
+(connector
+	(pt 432 808)
+	(pt 600 808)
+)
+(connector
+	(pt 600 368)
+	(pt 664 368)
+)
+(connector
+	(pt 600 368)
+	(pt 600 808)
+)
+(connector
+	(pt 616 864)
+	(pt 432 864)
+)
+(connector
+	(pt 616 864)
+	(pt 616 424)
+)
+(connector
+	(pt 616 424)
+	(pt 664 424)
+)
+(connector
+	(pt 432 920)
+	(pt 632 920)
+)
+(connector
+	(pt 728 80)
+	(pt 816 80)
+)
+(connector
+	(pt 728 136)
+	(pt 816 136)
+)
+(connector
+	(pt 728 192)
+	(pt 816 192)
+)
+(connector
+	(pt 728 248)
+	(pt 816 248)
+)
+(connector
+	(pt 728 304)
+	(pt 816 304)
+)
+(connector
+	(pt 728 360)
+	(pt 816 360)
+)
+(connector
+	(pt 728 416)
+	(pt 816 416)
+)
+(connector
+	(pt 448 240)
+	(pt 664 240)
+)
+(connector
+	(pt 728 472)
+	(pt 816 472)
+)
+(connector
+	(pt 632 480)
+	(pt 632 920)
+)
+(connector
+	(pt 632 480)
+	(pt 664 480)
+)
+(connector
+	(pt 216 792)
+	(pt 208 792)
+)
+(connector
+	(pt 216 160)
+	(pt 216 216)
+)
+(connector
+	(pt 216 216)
+	(pt 216 272)
+)
+(connector
+	(pt 216 272)
+	(pt 216 344)
+)
+(connector
+	(pt 288 536)
+	(pt 288 592)
+)
+(connector
+	(pt 288 592)
+	(pt 288 640)
+)
+(connector
+	(pt 288 640)
+	(pt 288 704)
+)
+(connector
+	(pt 288 704)
+	(pt 288 760)
+)
+(connector
+	(pt 288 872)
+	(pt 288 928)
+)
+(connector
+	(pt 216 48)
+	(pt 216 104)
+)
+(connector
+	(pt 216 104)
+	(pt 216 160)
+)
+(connector
+	(pt 288 760)
+	(pt 288 816)
+)
+(connector
+	(pt 288 816)
+	(pt 288 872)
+)
+(connector
+	(pt 208 816)
+	(pt 288 816)
+)
+(connector
+	(pt 288 816)
+	(pt 368 816)
+)
+(connector
+	(pt 216 344)
+	(pt 216 384)
+)
+(connector
+	(pt 216 384)
+	(pt 216 440)
+)
+(connector
+	(pt 216 440)
+	(pt 216 792)
+)
+(junction (pt 216 104))
+(junction (pt 216 160))
+(junction (pt 216 216))
+(junction (pt 216 272))
+(junction (pt 216 344))
+(junction (pt 216 384))
+(junction (pt 288 592))
+(junction (pt 288 640))
+(junction (pt 288 704))
+(junction (pt 288 760))
+(junction (pt 288 872))
+(junction (pt 288 816))
+(junction (pt 216 440))
diff --git a/quarter_selector_8b/double_selector_8b.bsf b/quarter_selector_8b/double_selector_8b.bsf
new file mode 100644
index 0000000..5904e05
--- /dev/null
+++ b/quarter_selector_8b/double_selector_8b.bsf
@@ -0,0 +1,211 @@
+/*
+WARNING: Do NOT edit the input and output ports in this file in a text
+editor if you plan to continue editing the block that represents it in
+the Block Editor! File corruption is VERY likely to occur.
+*/
+/*
+Copyright (C) 1991-2009 Altera Corporation
+Your use of Altera Corporation's design tools, logic functions 
+and other software and tools, and its AMPP partner logic 
+functions, and any output files from any of the foregoing 
+(including device programming or simulation files), and any 
+associated documentation or information are expressly subject 
+to the terms and conditions of the Altera Program License 
+Subscription Agreement, Altera MegaCore Function License 
+Agreement, or other applicable license agreement, including, 
+without limitation, that your use is for the sole purpose of 
+programming logic devices manufactured by Altera and sold by 
+Altera or its authorized distributors.  Please refer to the 
+applicable agreement for further details.
+*/
+(header "symbol" (version "1.1"))
+(symbol
+	(rect 64 64 160 416)
+	(text "double_selector_8b" (rect 5 0 117 14)(font "Arial" (font_size 8)))
+	(text "inst" (rect 8 336 25 348)(font "Arial" ))
+	(port
+		(pt 0 144)
+		(input)
+		(text "a0" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a0" (rect 21 136 35 150)(font "Arial" (font_size 8)))
+		(line (pt 0 144)(pt 16 144)(line_width 1))
+	)
+	(port
+		(pt 0 128)
+		(input)
+		(text "a1" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a1" (rect 21 120 35 134)(font "Arial" (font_size 8)))
+		(line (pt 0 128)(pt 16 128)(line_width 1))
+	)
+	(port
+		(pt 0 112)
+		(input)
+		(text "a2" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a2" (rect 21 104 35 118)(font "Arial" (font_size 8)))
+		(line (pt 0 112)(pt 16 112)(line_width 1))
+	)
+	(port
+		(pt 0 96)
+		(input)
+		(text "a3" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a3" (rect 21 88 35 102)(font "Arial" (font_size 8)))
+		(line (pt 0 96)(pt 16 96)(line_width 1))
+	)
+	(port
+		(pt 0 80)
+		(input)
+		(text "a4" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a4" (rect 21 72 35 86)(font "Arial" (font_size 8)))
+		(line (pt 0 80)(pt 16 80)(line_width 1))
+	)
+	(port
+		(pt 0 64)
+		(input)
+		(text "a5" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a5" (rect 21 56 35 70)(font "Arial" (font_size 8)))
+		(line (pt 0 64)(pt 16 64)(line_width 1))
+	)
+	(port
+		(pt 0 48)
+		(input)
+		(text "a6" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a6" (rect 21 40 35 54)(font "Arial" (font_size 8)))
+		(line (pt 0 48)(pt 16 48)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "a7" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a7" (rect 21 24 35 38)(font "Arial" (font_size 8)))
+		(line (pt 0 32)(pt 16 32)(line_width 1))
+	)
+	(port
+		(pt 0 272)
+		(input)
+		(text "b0" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b0" (rect 21 267 35 281)(font "Arial" (font_size 8)))
+		(line (pt 0 272)(pt 16 272)(line_width 1))
+	)
+	(port
+		(pt 0 256)
+		(input)
+		(text "b1" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b1" (rect 21 251 35 265)(font "Arial" (font_size 8)))
+		(line (pt 0 256)(pt 16 256)(line_width 1))
+	)
+	(port
+		(pt 0 240)
+		(input)
+		(text "b2" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b2" (rect 21 235 35 249)(font "Arial" (font_size 8)))
+		(line (pt 0 240)(pt 16 240)(line_width 1))
+	)
+	(port
+		(pt 0 224)
+		(input)
+		(text "b3" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b3" (rect 21 219 35 233)(font "Arial" (font_size 8)))
+		(line (pt 0 224)(pt 16 224)(line_width 1))
+	)
+	(port
+		(pt 0 208)
+		(input)
+		(text "b4" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b4" (rect 21 203 35 217)(font "Arial" (font_size 8)))
+		(line (pt 0 208)(pt 16 208)(line_width 1))
+	)
+	(port
+		(pt 0 192)
+		(input)
+		(text "b5" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b5" (rect 21 187 35 201)(font "Arial" (font_size 8)))
+		(line (pt 0 192)(pt 16 192)(line_width 1))
+	)
+	(port
+		(pt 0 176)
+		(input)
+		(text "b6" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b6" (rect 21 171 35 185)(font "Arial" (font_size 8)))
+		(line (pt 0 176)(pt 16 176)(line_width 1))
+	)
+	(port
+		(pt 0 160)
+		(input)
+		(text "b7" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b7" (rect 21 155 35 169)(font "Arial" (font_size 8)))
+		(line (pt 0 160)(pt 16 160)(line_width 1))
+	)
+	(port
+		(pt 0 288)
+		(input)
+		(text "AY" (rect 0 0 18 14)(font "Arial" (font_size 8)))
+		(text "AY" (rect 21 283 39 297)(font "Arial" (font_size 8)))
+		(line (pt 0 288)(pt 16 288)(line_width 1))
+	)
+	(port
+		(pt 0 304)
+		(input)
+		(text "BY" (rect 0 0 17 14)(font "Arial" (font_size 8)))
+		(text "BY" (rect 21 299 38 313)(font "Arial" (font_size 8)))
+		(line (pt 0 304)(pt 16 304)(line_width 1))
+	)
+	(port
+		(pt 96 144)
+		(output)
+		(text "Y0" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y0" (rect 59 139 75 153)(font "Arial" (font_size 8)))
+		(line (pt 96 144)(pt 80 144)(line_width 1))
+	)
+	(port
+		(pt 96 128)
+		(output)
+		(text "Y1" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y1" (rect 59 123 75 137)(font "Arial" (font_size 8)))
+		(line (pt 96 128)(pt 80 128)(line_width 1))
+	)
+	(port
+		(pt 96 112)
+		(output)
+		(text "Y2" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y2" (rect 59 107 75 121)(font "Arial" (font_size 8)))
+		(line (pt 96 112)(pt 80 112)(line_width 1))
+	)
+	(port
+		(pt 96 96)
+		(output)
+		(text "Y3" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y3" (rect 59 91 75 105)(font "Arial" (font_size 8)))
+		(line (pt 96 96)(pt 80 96)(line_width 1))
+	)
+	(port
+		(pt 96 80)
+		(output)
+		(text "Y4" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y4" (rect 59 75 75 89)(font "Arial" (font_size 8)))
+		(line (pt 96 80)(pt 80 80)(line_width 1))
+	)
+	(port
+		(pt 96 64)
+		(output)
+		(text "Y5" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y5" (rect 59 59 75 73)(font "Arial" (font_size 8)))
+		(line (pt 96 64)(pt 80 64)(line_width 1))
+	)
+	(port
+		(pt 96 48)
+		(output)
+		(text "Y6" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y6" (rect 59 43 75 57)(font "Arial" (font_size 8)))
+		(line (pt 96 48)(pt 80 48)(line_width 1))
+	)
+	(port
+		(pt 96 32)
+		(output)
+		(text "Y7" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y7" (rect 59 27 75 41)(font "Arial" (font_size 8)))
+		(line (pt 96 32)(pt 80 32)(line_width 1))
+	)
+	(drawing
+		(rectangle (rect 16 16 80 336)(line_width 1))
+	)
+)
diff --git a/quarter_selector_8b/quarter_selector_8b.bdf b/quarter_selector_8b/quarter_selector_8b.bdf
new file mode 100644
index 0000000..f84de12
--- /dev/null
+++ b/quarter_selector_8b/quarter_selector_8b.bdf
@@ -0,0 +1,1742 @@
+/*
+WARNING: Do NOT edit the input and output ports in this file in a text
+editor if you plan to continue editing the block that represents it in
+the Block Editor! File corruption is VERY likely to occur.
+*/
+/*
+Copyright (C) 1991-2009 Altera Corporation
+Your use of Altera Corporation's design tools, logic functions 
+and other software and tools, and its AMPP partner logic 
+functions, and any output files from any of the foregoing 
+(including device programming or simulation files), and any 
+associated documentation or information are expressly subject 
+to the terms and conditions of the Altera Program License 
+Subscription Agreement, Altera MegaCore Function License 
+Agreement, or other applicable license agreement, including, 
+without limitation, that your use is for the sole purpose of 
+programming logic devices manufactured by Altera and sold by 
+Altera or its authorized distributors.  Please refer to the 
+applicable agreement for further details.
+*/
+//#pragma file_not_in_maxplusii_format
+(header "graphic" (version "1.3"))
+(pin
+	(input)
+	(rect 72 680 240 696)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "D0" (rect 5 0 19 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 664 240 680)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "D1" (rect 5 0 19 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 648 240 664)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "D2" (rect 5 0 19 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 632 240 648)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "D3" (rect 5 0 19 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 616 240 632)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "D4" (rect 5 0 19 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 600 240 616)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "D5" (rect 5 0 19 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 584 240 600)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "D6" (rect 5 0 19 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 568 240 584)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "D7" (rect 5 0 19 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 552 240 568)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "C0" (rect 5 0 19 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 536 240 552)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "C1" (rect 5 0 19 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 520 240 536)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "C2" (rect 5 0 19 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 504 240 520)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "C3" (rect 5 0 19 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 488 240 504)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "C4" (rect 5 0 19 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 472 240 488)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "C5" (rect 5 0 19 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 456 240 472)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "C6" (rect 5 0 19 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 440 240 456)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "C7" (rect 5 0 19 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 296 240 312)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "B0" (rect 5 0 17 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 280 240 296)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "B1" (rect 5 0 17 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 264 240 280)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "B2" (rect 5 0 17 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 248 240 264)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "B3" (rect 5 0 17 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 232 240 248)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "B4" (rect 5 0 17 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 216 240 232)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "B5" (rect 5 0 17 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 200 240 216)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "B6" (rect 5 0 17 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 184 240 200)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "B7" (rect 5 0 17 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 168 240 184)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "A0" (rect 5 0 17 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 152 240 168)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "A1" (rect 5 0 17 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 136 240 152)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "A2" (rect 5 0 17 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 120 240 136)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "A3" (rect 5 0 17 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 104 240 120)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "A4" (rect 5 0 17 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 88 240 104)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "A5" (rect 5 0 17 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 72 240 88)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "A6" (rect 5 0 17 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 56 240 72)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "A7" (rect 5 0 17 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 312 240 328)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "AY" (rect 5 0 20 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 328 240 344)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "BY" (rect 5 0 20 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 696 240 712)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "CY" (rect 5 0 21 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 72 712 240 728)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "DY" (rect 5 0 21 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
+		(line (pt 92 4)(pt 117 4)(line_width 1))
+		(line (pt 121 8)(pt 168 8)(line_width 1))
+		(line (pt 92 12)(pt 92 4)(line_width 1))
+		(line (pt 117 4)(pt 121 8)(line_width 1))
+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(output)
+	(rect 744 424 920 440)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "Y0" (rect 90 0 104 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
+		(line (pt 0 8)(pt 52 8)(line_width 1))
+		(line (pt 52 4)(pt 78 4)(line_width 1))
+		(line (pt 52 12)(pt 78 12)(line_width 1))
+		(line (pt 52 12)(pt 52 4)(line_width 1))
+		(line (pt 78 4)(pt 82 8)(line_width 1))
+		(line (pt 82 8)(pt 78 12)(line_width 1))
+		(line (pt 78 12)(pt 82 8)(line_width 1))
+	)
+)
+(pin
+	(output)
+	(rect 744 408 920 424)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "Y1" (rect 90 0 104 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
+		(line (pt 0 8)(pt 52 8)(line_width 1))
+		(line (pt 52 4)(pt 78 4)(line_width 1))
+		(line (pt 52 12)(pt 78 12)(line_width 1))
+		(line (pt 52 12)(pt 52 4)(line_width 1))
+		(line (pt 78 4)(pt 82 8)(line_width 1))
+		(line (pt 82 8)(pt 78 12)(line_width 1))
+		(line (pt 78 12)(pt 82 8)(line_width 1))
+	)
+)
+(pin
+	(output)
+	(rect 744 392 920 408)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "Y2" (rect 90 0 104 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
+		(line (pt 0 8)(pt 52 8)(line_width 1))
+		(line (pt 52 4)(pt 78 4)(line_width 1))
+		(line (pt 52 12)(pt 78 12)(line_width 1))
+		(line (pt 52 12)(pt 52 4)(line_width 1))
+		(line (pt 78 4)(pt 82 8)(line_width 1))
+		(line (pt 82 8)(pt 78 12)(line_width 1))
+		(line (pt 78 12)(pt 82 8)(line_width 1))
+	)
+)
+(pin
+	(output)
+	(rect 744 376 920 392)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "Y3" (rect 90 0 104 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
+		(line (pt 0 8)(pt 52 8)(line_width 1))
+		(line (pt 52 4)(pt 78 4)(line_width 1))
+		(line (pt 52 12)(pt 78 12)(line_width 1))
+		(line (pt 52 12)(pt 52 4)(line_width 1))
+		(line (pt 78 4)(pt 82 8)(line_width 1))
+		(line (pt 82 8)(pt 78 12)(line_width 1))
+		(line (pt 78 12)(pt 82 8)(line_width 1))
+	)
+)
+(pin
+	(output)
+	(rect 744 360 920 376)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "Y4" (rect 90 0 104 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
+		(line (pt 0 8)(pt 52 8)(line_width 1))
+		(line (pt 52 4)(pt 78 4)(line_width 1))
+		(line (pt 52 12)(pt 78 12)(line_width 1))
+		(line (pt 52 12)(pt 52 4)(line_width 1))
+		(line (pt 78 4)(pt 82 8)(line_width 1))
+		(line (pt 82 8)(pt 78 12)(line_width 1))
+		(line (pt 78 12)(pt 82 8)(line_width 1))
+	)
+)
+(pin
+	(output)
+	(rect 744 344 920 360)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "Y5" (rect 90 0 104 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
+		(line (pt 0 8)(pt 52 8)(line_width 1))
+		(line (pt 52 4)(pt 78 4)(line_width 1))
+		(line (pt 52 12)(pt 78 12)(line_width 1))
+		(line (pt 52 12)(pt 52 4)(line_width 1))
+		(line (pt 78 4)(pt 82 8)(line_width 1))
+		(line (pt 82 8)(pt 78 12)(line_width 1))
+		(line (pt 78 12)(pt 82 8)(line_width 1))
+	)
+)
+(pin
+	(output)
+	(rect 744 328 920 344)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "Y6" (rect 90 0 104 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
+		(line (pt 0 8)(pt 52 8)(line_width 1))
+		(line (pt 52 4)(pt 78 4)(line_width 1))
+		(line (pt 52 12)(pt 78 12)(line_width 1))
+		(line (pt 52 12)(pt 52 4)(line_width 1))
+		(line (pt 78 4)(pt 82 8)(line_width 1))
+		(line (pt 82 8)(pt 78 12)(line_width 1))
+		(line (pt 78 12)(pt 82 8)(line_width 1))
+	)
+)
+(pin
+	(output)
+	(rect 744 312 920 328)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "Y7" (rect 90 0 104 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
+		(line (pt 0 8)(pt 52 8)(line_width 1))
+		(line (pt 52 4)(pt 78 4)(line_width 1))
+		(line (pt 52 12)(pt 78 12)(line_width 1))
+		(line (pt 52 12)(pt 52 4)(line_width 1))
+		(line (pt 78 4)(pt 82 8)(line_width 1))
+		(line (pt 82 8)(pt 78 12)(line_width 1))
+		(line (pt 78 12)(pt 82 8)(line_width 1))
+	)
+)
+(symbol
+	(rect 368 32 464 384)
+	(text "double_selector_8b" (rect 5 0 117 14)(font "Arial" (font_size 8)))
+	(text "inst" (rect 8 336 25 348)(font "Arial" ))
+	(port
+		(pt 0 144)
+		(input)
+		(text "a0" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a0" (rect 21 136 35 150)(font "Arial" (font_size 8)))
+		(line (pt 0 144)(pt 16 144)(line_width 1))
+	)
+	(port
+		(pt 0 128)
+		(input)
+		(text "a1" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a1" (rect 21 120 35 134)(font "Arial" (font_size 8)))
+		(line (pt 0 128)(pt 16 128)(line_width 1))
+	)
+	(port
+		(pt 0 112)
+		(input)
+		(text "a2" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a2" (rect 21 104 35 118)(font "Arial" (font_size 8)))
+		(line (pt 0 112)(pt 16 112)(line_width 1))
+	)
+	(port
+		(pt 0 96)
+		(input)
+		(text "a3" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a3" (rect 21 88 35 102)(font "Arial" (font_size 8)))
+		(line (pt 0 96)(pt 16 96)(line_width 1))
+	)
+	(port
+		(pt 0 80)
+		(input)
+		(text "a4" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a4" (rect 21 72 35 86)(font "Arial" (font_size 8)))
+		(line (pt 0 80)(pt 16 80)(line_width 1))
+	)
+	(port
+		(pt 0 64)
+		(input)
+		(text "a5" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a5" (rect 21 56 35 70)(font "Arial" (font_size 8)))
+		(line (pt 0 64)(pt 16 64)(line_width 1))
+	)
+	(port
+		(pt 0 48)
+		(input)
+		(text "a6" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a6" (rect 21 40 35 54)(font "Arial" (font_size 8)))
+		(line (pt 0 48)(pt 16 48)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "a7" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a7" (rect 21 24 35 38)(font "Arial" (font_size 8)))
+		(line (pt 0 32)(pt 16 32)(line_width 1))
+	)
+	(port
+		(pt 0 272)
+		(input)
+		(text "b0" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b0" (rect 21 267 35 281)(font "Arial" (font_size 8)))
+		(line (pt 0 272)(pt 16 272)(line_width 1))
+	)
+	(port
+		(pt 0 256)
+		(input)
+		(text "b1" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b1" (rect 21 251 35 265)(font "Arial" (font_size 8)))
+		(line (pt 0 256)(pt 16 256)(line_width 1))
+	)
+	(port
+		(pt 0 240)
+		(input)
+		(text "b2" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b2" (rect 21 235 35 249)(font "Arial" (font_size 8)))
+		(line (pt 0 240)(pt 16 240)(line_width 1))
+	)
+	(port
+		(pt 0 224)
+		(input)
+		(text "b3" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b3" (rect 21 219 35 233)(font "Arial" (font_size 8)))
+		(line (pt 0 224)(pt 16 224)(line_width 1))
+	)
+	(port
+		(pt 0 208)
+		(input)
+		(text "b4" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b4" (rect 21 203 35 217)(font "Arial" (font_size 8)))
+		(line (pt 0 208)(pt 16 208)(line_width 1))
+	)
+	(port
+		(pt 0 192)
+		(input)
+		(text "b5" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b5" (rect 21 187 35 201)(font "Arial" (font_size 8)))
+		(line (pt 0 192)(pt 16 192)(line_width 1))
+	)
+	(port
+		(pt 0 176)
+		(input)
+		(text "b6" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b6" (rect 21 171 35 185)(font "Arial" (font_size 8)))
+		(line (pt 0 176)(pt 16 176)(line_width 1))
+	)
+	(port
+		(pt 0 160)
+		(input)
+		(text "b7" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b7" (rect 21 155 35 169)(font "Arial" (font_size 8)))
+		(line (pt 0 160)(pt 16 160)(line_width 1))
+	)
+	(port
+		(pt 0 288)
+		(input)
+		(text "AY" (rect 0 0 18 14)(font "Arial" (font_size 8)))
+		(text "AY" (rect 21 283 39 297)(font "Arial" (font_size 8)))
+		(line (pt 0 288)(pt 16 288)(line_width 1))
+	)
+	(port
+		(pt 0 304)
+		(input)
+		(text "BY" (rect 0 0 17 14)(font "Arial" (font_size 8)))
+		(text "BY" (rect 21 299 38 313)(font "Arial" (font_size 8)))
+		(line (pt 0 304)(pt 16 304)(line_width 1))
+	)
+	(port
+		(pt 96 144)
+		(output)
+		(text "Y0" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y0" (rect 59 139 75 153)(font "Arial" (font_size 8)))
+		(line (pt 96 144)(pt 80 144)(line_width 1))
+	)
+	(port
+		(pt 96 128)
+		(output)
+		(text "Y1" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y1" (rect 59 123 75 137)(font "Arial" (font_size 8)))
+		(line (pt 96 128)(pt 80 128)(line_width 1))
+	)
+	(port
+		(pt 96 112)
+		(output)
+		(text "Y2" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y2" (rect 59 107 75 121)(font "Arial" (font_size 8)))
+		(line (pt 96 112)(pt 80 112)(line_width 1))
+	)
+	(port
+		(pt 96 96)
+		(output)
+		(text "Y3" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y3" (rect 59 91 75 105)(font "Arial" (font_size 8)))
+		(line (pt 96 96)(pt 80 96)(line_width 1))
+	)
+	(port
+		(pt 96 80)
+		(output)
+		(text "Y4" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y4" (rect 59 75 75 89)(font "Arial" (font_size 8)))
+		(line (pt 96 80)(pt 80 80)(line_width 1))
+	)
+	(port
+		(pt 96 64)
+		(output)
+		(text "Y5" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y5" (rect 59 59 75 73)(font "Arial" (font_size 8)))
+		(line (pt 96 64)(pt 80 64)(line_width 1))
+	)
+	(port
+		(pt 96 48)
+		(output)
+		(text "Y6" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y6" (rect 59 43 75 57)(font "Arial" (font_size 8)))
+		(line (pt 96 48)(pt 80 48)(line_width 1))
+	)
+	(port
+		(pt 96 32)
+		(output)
+		(text "Y7" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y7" (rect 59 27 75 41)(font "Arial" (font_size 8)))
+		(line (pt 96 32)(pt 80 32)(line_width 1))
+	)
+	(drawing
+		(rectangle (rect 16 16 80 336)(line_width 1))
+	)
+)
+(symbol
+	(rect 368 416 464 768)
+	(text "double_selector_8b" (rect 5 0 117 14)(font "Arial" (font_size 8)))
+	(text "inst1" (rect 8 336 31 348)(font "Arial" ))
+	(port
+		(pt 0 144)
+		(input)
+		(text "a0" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a0" (rect 21 136 35 150)(font "Arial" (font_size 8)))
+		(line (pt 0 144)(pt 16 144)(line_width 1))
+	)
+	(port
+		(pt 0 128)
+		(input)
+		(text "a1" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a1" (rect 21 120 35 134)(font "Arial" (font_size 8)))
+		(line (pt 0 128)(pt 16 128)(line_width 1))
+	)
+	(port
+		(pt 0 112)
+		(input)
+		(text "a2" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a2" (rect 21 104 35 118)(font "Arial" (font_size 8)))
+		(line (pt 0 112)(pt 16 112)(line_width 1))
+	)
+	(port
+		(pt 0 96)
+		(input)
+		(text "a3" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a3" (rect 21 88 35 102)(font "Arial" (font_size 8)))
+		(line (pt 0 96)(pt 16 96)(line_width 1))
+	)
+	(port
+		(pt 0 80)
+		(input)
+		(text "a4" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a4" (rect 21 72 35 86)(font "Arial" (font_size 8)))
+		(line (pt 0 80)(pt 16 80)(line_width 1))
+	)
+	(port
+		(pt 0 64)
+		(input)
+		(text "a5" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a5" (rect 21 56 35 70)(font "Arial" (font_size 8)))
+		(line (pt 0 64)(pt 16 64)(line_width 1))
+	)
+	(port
+		(pt 0 48)
+		(input)
+		(text "a6" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a6" (rect 21 40 35 54)(font "Arial" (font_size 8)))
+		(line (pt 0 48)(pt 16 48)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "a7" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a7" (rect 21 24 35 38)(font "Arial" (font_size 8)))
+		(line (pt 0 32)(pt 16 32)(line_width 1))
+	)
+	(port
+		(pt 0 272)
+		(input)
+		(text "b0" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b0" (rect 21 267 35 281)(font "Arial" (font_size 8)))
+		(line (pt 0 272)(pt 16 272)(line_width 1))
+	)
+	(port
+		(pt 0 256)
+		(input)
+		(text "b1" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b1" (rect 21 251 35 265)(font "Arial" (font_size 8)))
+		(line (pt 0 256)(pt 16 256)(line_width 1))
+	)
+	(port
+		(pt 0 240)
+		(input)
+		(text "b2" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b2" (rect 21 235 35 249)(font "Arial" (font_size 8)))
+		(line (pt 0 240)(pt 16 240)(line_width 1))
+	)
+	(port
+		(pt 0 224)
+		(input)
+		(text "b3" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b3" (rect 21 219 35 233)(font "Arial" (font_size 8)))
+		(line (pt 0 224)(pt 16 224)(line_width 1))
+	)
+	(port
+		(pt 0 208)
+		(input)
+		(text "b4" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b4" (rect 21 203 35 217)(font "Arial" (font_size 8)))
+		(line (pt 0 208)(pt 16 208)(line_width 1))
+	)
+	(port
+		(pt 0 192)
+		(input)
+		(text "b5" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b5" (rect 21 187 35 201)(font "Arial" (font_size 8)))
+		(line (pt 0 192)(pt 16 192)(line_width 1))
+	)
+	(port
+		(pt 0 176)
+		(input)
+		(text "b6" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b6" (rect 21 171 35 185)(font "Arial" (font_size 8)))
+		(line (pt 0 176)(pt 16 176)(line_width 1))
+	)
+	(port
+		(pt 0 160)
+		(input)
+		(text "b7" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b7" (rect 21 155 35 169)(font "Arial" (font_size 8)))
+		(line (pt 0 160)(pt 16 160)(line_width 1))
+	)
+	(port
+		(pt 0 288)
+		(input)
+		(text "AY" (rect 0 0 18 14)(font "Arial" (font_size 8)))
+		(text "AY" (rect 21 283 39 297)(font "Arial" (font_size 8)))
+		(line (pt 0 288)(pt 16 288)(line_width 1))
+	)
+	(port
+		(pt 0 304)
+		(input)
+		(text "BY" (rect 0 0 17 14)(font "Arial" (font_size 8)))
+		(text "BY" (rect 21 299 38 313)(font "Arial" (font_size 8)))
+		(line (pt 0 304)(pt 16 304)(line_width 1))
+	)
+	(port
+		(pt 96 144)
+		(output)
+		(text "Y0" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y0" (rect 59 139 75 153)(font "Arial" (font_size 8)))
+		(line (pt 96 144)(pt 80 144)(line_width 1))
+	)
+	(port
+		(pt 96 128)
+		(output)
+		(text "Y1" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y1" (rect 59 123 75 137)(font "Arial" (font_size 8)))
+		(line (pt 96 128)(pt 80 128)(line_width 1))
+	)
+	(port
+		(pt 96 112)
+		(output)
+		(text "Y2" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y2" (rect 59 107 75 121)(font "Arial" (font_size 8)))
+		(line (pt 96 112)(pt 80 112)(line_width 1))
+	)
+	(port
+		(pt 96 96)
+		(output)
+		(text "Y3" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y3" (rect 59 91 75 105)(font "Arial" (font_size 8)))
+		(line (pt 96 96)(pt 80 96)(line_width 1))
+	)
+	(port
+		(pt 96 80)
+		(output)
+		(text "Y4" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y4" (rect 59 75 75 89)(font "Arial" (font_size 8)))
+		(line (pt 96 80)(pt 80 80)(line_width 1))
+	)
+	(port
+		(pt 96 64)
+		(output)
+		(text "Y5" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y5" (rect 59 59 75 73)(font "Arial" (font_size 8)))
+		(line (pt 96 64)(pt 80 64)(line_width 1))
+	)
+	(port
+		(pt 96 48)
+		(output)
+		(text "Y6" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y6" (rect 59 43 75 57)(font "Arial" (font_size 8)))
+		(line (pt 96 48)(pt 80 48)(line_width 1))
+	)
+	(port
+		(pt 96 32)
+		(output)
+		(text "Y7" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y7" (rect 59 27 75 41)(font "Arial" (font_size 8)))
+		(line (pt 96 32)(pt 80 32)(line_width 1))
+	)
+	(drawing
+		(rectangle (rect 16 16 80 336)(line_width 1))
+	)
+)
+(symbol
+	(rect 608 288 704 640)
+	(text "double_selector_8b" (rect 5 0 117 14)(font "Arial" (font_size 8)))
+	(text "inst2" (rect 8 336 31 348)(font "Arial" ))
+	(port
+		(pt 0 144)
+		(input)
+		(text "a0" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a0" (rect 21 136 35 150)(font "Arial" (font_size 8)))
+		(line (pt 0 144)(pt 16 144)(line_width 1))
+	)
+	(port
+		(pt 0 128)
+		(input)
+		(text "a1" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a1" (rect 21 120 35 134)(font "Arial" (font_size 8)))
+		(line (pt 0 128)(pt 16 128)(line_width 1))
+	)
+	(port
+		(pt 0 112)
+		(input)
+		(text "a2" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a2" (rect 21 104 35 118)(font "Arial" (font_size 8)))
+		(line (pt 0 112)(pt 16 112)(line_width 1))
+	)
+	(port
+		(pt 0 96)
+		(input)
+		(text "a3" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a3" (rect 21 88 35 102)(font "Arial" (font_size 8)))
+		(line (pt 0 96)(pt 16 96)(line_width 1))
+	)
+	(port
+		(pt 0 80)
+		(input)
+		(text "a4" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a4" (rect 21 72 35 86)(font "Arial" (font_size 8)))
+		(line (pt 0 80)(pt 16 80)(line_width 1))
+	)
+	(port
+		(pt 0 64)
+		(input)
+		(text "a5" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a5" (rect 21 56 35 70)(font "Arial" (font_size 8)))
+		(line (pt 0 64)(pt 16 64)(line_width 1))
+	)
+	(port
+		(pt 0 48)
+		(input)
+		(text "a6" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a6" (rect 21 40 35 54)(font "Arial" (font_size 8)))
+		(line (pt 0 48)(pt 16 48)(line_width 1))
+	)
+	(port
+		(pt 0 32)
+		(input)
+		(text "a7" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "a7" (rect 21 24 35 38)(font "Arial" (font_size 8)))
+		(line (pt 0 32)(pt 16 32)(line_width 1))
+	)
+	(port
+		(pt 0 272)
+		(input)
+		(text "b0" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b0" (rect 21 267 35 281)(font "Arial" (font_size 8)))
+		(line (pt 0 272)(pt 16 272)(line_width 1))
+	)
+	(port
+		(pt 0 256)
+		(input)
+		(text "b1" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b1" (rect 21 251 35 265)(font "Arial" (font_size 8)))
+		(line (pt 0 256)(pt 16 256)(line_width 1))
+	)
+	(port
+		(pt 0 240)
+		(input)
+		(text "b2" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b2" (rect 21 235 35 249)(font "Arial" (font_size 8)))
+		(line (pt 0 240)(pt 16 240)(line_width 1))
+	)
+	(port
+		(pt 0 224)
+		(input)
+		(text "b3" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b3" (rect 21 219 35 233)(font "Arial" (font_size 8)))
+		(line (pt 0 224)(pt 16 224)(line_width 1))
+	)
+	(port
+		(pt 0 208)
+		(input)
+		(text "b4" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b4" (rect 21 203 35 217)(font "Arial" (font_size 8)))
+		(line (pt 0 208)(pt 16 208)(line_width 1))
+	)
+	(port
+		(pt 0 192)
+		(input)
+		(text "b5" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b5" (rect 21 187 35 201)(font "Arial" (font_size 8)))
+		(line (pt 0 192)(pt 16 192)(line_width 1))
+	)
+	(port
+		(pt 0 176)
+		(input)
+		(text "b6" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b6" (rect 21 171 35 185)(font "Arial" (font_size 8)))
+		(line (pt 0 176)(pt 16 176)(line_width 1))
+	)
+	(port
+		(pt 0 160)
+		(input)
+		(text "b7" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "b7" (rect 21 155 35 169)(font "Arial" (font_size 8)))
+		(line (pt 0 160)(pt 16 160)(line_width 1))
+	)
+	(port
+		(pt 0 288)
+		(input)
+		(text "AY" (rect 0 0 18 14)(font "Arial" (font_size 8)))
+		(text "AY" (rect 21 283 39 297)(font "Arial" (font_size 8)))
+		(line (pt 0 288)(pt 16 288)(line_width 1))
+	)
+	(port
+		(pt 0 304)
+		(input)
+		(text "BY" (rect 0 0 17 14)(font "Arial" (font_size 8)))
+		(text "BY" (rect 21 299 38 313)(font "Arial" (font_size 8)))
+		(line (pt 0 304)(pt 16 304)(line_width 1))
+	)
+	(port
+		(pt 96 144)
+		(output)
+		(text "Y0" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y0" (rect 59 139 75 153)(font "Arial" (font_size 8)))
+		(line (pt 96 144)(pt 80 144)(line_width 1))
+	)
+	(port
+		(pt 96 128)
+		(output)
+		(text "Y1" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y1" (rect 59 123 75 137)(font "Arial" (font_size 8)))
+		(line (pt 96 128)(pt 80 128)(line_width 1))
+	)
+	(port
+		(pt 96 112)
+		(output)
+		(text "Y2" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y2" (rect 59 107 75 121)(font "Arial" (font_size 8)))
+		(line (pt 96 112)(pt 80 112)(line_width 1))
+	)
+	(port
+		(pt 96 96)
+		(output)
+		(text "Y3" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y3" (rect 59 91 75 105)(font "Arial" (font_size 8)))
+		(line (pt 96 96)(pt 80 96)(line_width 1))
+	)
+	(port
+		(pt 96 80)
+		(output)
+		(text "Y4" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y4" (rect 59 75 75 89)(font "Arial" (font_size 8)))
+		(line (pt 96 80)(pt 80 80)(line_width 1))
+	)
+	(port
+		(pt 96 64)
+		(output)
+		(text "Y5" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y5" (rect 59 59 75 73)(font "Arial" (font_size 8)))
+		(line (pt 96 64)(pt 80 64)(line_width 1))
+	)
+	(port
+		(pt 96 48)
+		(output)
+		(text "Y6" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y6" (rect 59 43 75 57)(font "Arial" (font_size 8)))
+		(line (pt 96 48)(pt 80 48)(line_width 1))
+	)
+	(port
+		(pt 96 32)
+		(output)
+		(text "Y7" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y7" (rect 59 27 75 41)(font "Arial" (font_size 8)))
+		(line (pt 96 32)(pt 80 32)(line_width 1))
+	)
+	(drawing
+		(rectangle (rect 16 16 80 336)(line_width 1))
+	)
+)
+(symbol
+	(rect 288 376 352 424)
+	(text "OR2" (rect 1 0 19 10)(font "Arial" (font_size 6)))
+	(text "inst9" (rect 3 37 26 49)(font "Arial" ))
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 15 32)(line_width 1))
+	)
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 15 16)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 48 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 36)(pt 25 36)(line_width 1))
+		(line (pt 14 13)(pt 25 13)(line_width 1))
+		(arc (pt 7 29)(pt 7 19)(rect -14 8 19 41)(line_width 1))
+		(arc (pt 49 24)(pt 25 13)(rect -6 13 57 76)(line_width 1))
+		(arc (pt 25 35)(pt 49 24)(rect -6 -27 57 36)(line_width 1))
+	)
+)
+(symbol
+	(rect 288 760 352 808)
+	(text "OR2" (rect 1 0 19 10)(font "Arial" (font_size 6)))
+	(text "inst10" (rect 3 37 32 49)(font "Arial" ))
+	(port
+		(pt 0 32)
+		(input)
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(text "IN2" (rect 2 23 19 35)(font "Courier New" (bold))(invisible))
+		(line (pt 0 32)(pt 15 32)(line_width 1))
+	)
+	(port
+		(pt 0 16)
+		(input)
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(text "IN1" (rect 2 7 19 19)(font "Courier New" (bold))(invisible))
+		(line (pt 0 16)(pt 15 16)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(text "OUT" (rect 48 15 65 27)(font "Courier New" (bold))(invisible))
+		(line (pt 48 24)(pt 64 24)(line_width 1))
+	)
+	(drawing
+		(line (pt 14 36)(pt 25 36)(line_width 1))
+		(line (pt 14 13)(pt 25 13)(line_width 1))
+		(arc (pt 7 29)(pt 7 19)(rect -14 8 19 41)(line_width 1))
+		(arc (pt 49 24)(pt 25 13)(rect -6 13 57 76)(line_width 1))
+		(arc (pt 25 35)(pt 49 24)(rect -6 -27 57 36)(line_width 1))
+	)
+)
+(connector
+	(pt 496 336)
+	(pt 608 336)
+)
+(connector
+	(pt 704 320)
+	(pt 744 320)
+)
+(connector
+	(pt 704 336)
+	(pt 744 336)
+)
+(connector
+	(pt 704 352)
+	(pt 744 352)
+)
+(connector
+	(pt 704 368)
+	(pt 744 368)
+)
+(connector
+	(pt 704 384)
+	(pt 744 384)
+)
+(connector
+	(pt 704 400)
+	(pt 744 400)
+)
+(connector
+	(pt 704 416)
+	(pt 744 416)
+)
+(connector
+	(pt 704 432)
+	(pt 744 432)
+)
+(connector
+	(pt 608 432)
+	(pt 592 432)
+)
+(connector
+	(pt 608 416)
+	(pt 576 416)
+)
+(connector
+	(pt 608 400)
+	(pt 560 400)
+)
+(connector
+	(pt 608 384)
+	(pt 544 384)
+)
+(connector
+	(pt 608 368)
+	(pt 528 368)
+)
+(connector
+	(pt 608 352)
+	(pt 512 352)
+)
+(connector
+	(pt 608 320)
+	(pt 480 320)
+)
+(connector
+	(pt 464 560)
+	(pt 608 560)
+)
+(connector
+	(pt 464 544)
+	(pt 608 544)
+)
+(connector
+	(pt 464 528)
+	(pt 608 528)
+)
+(connector
+	(pt 464 512)
+	(pt 608 512)
+)
+(connector
+	(pt 464 496)
+	(pt 608 496)
+)
+(connector
+	(pt 464 480)
+	(pt 608 480)
+)
+(connector
+	(pt 464 464)
+	(pt 608 464)
+)
+(connector
+	(pt 464 448)
+	(pt 608 448)
+)
+(connector
+	(pt 608 576)
+	(pt 528 576)
+)
+(connector
+	(pt 608 592)
+	(pt 528 592)
+)
+(connector
+	(pt 528 784)
+	(pt 528 592)
+)
+(connector
+	(pt 352 784)
+	(pt 528 784)
+)
+(connector
+	(pt 528 576)
+	(pt 528 400)
+)
+(connector
+	(pt 528 400)
+	(pt 352 400)
+)
+(connector
+	(pt 496 336)
+	(pt 496 80)
+)
+(connector
+	(pt 592 432)
+	(pt 592 176)
+)
+(connector
+	(pt 576 416)
+	(pt 576 160)
+)
+(connector
+	(pt 560 400)
+	(pt 560 144)
+)
+(connector
+	(pt 544 384)
+	(pt 544 128)
+)
+(connector
+	(pt 528 368)
+	(pt 528 112)
+)
+(connector
+	(pt 512 352)
+	(pt 512 96)
+)
+(connector
+	(pt 592 176)
+	(pt 464 176)
+)
+(connector
+	(pt 576 160)
+	(pt 464 160)
+)
+(connector
+	(pt 560 144)
+	(pt 464 144)
+)
+(connector
+	(pt 544 128)
+	(pt 464 128)
+)
+(connector
+	(pt 528 112)
+	(pt 464 112)
+)
+(connector
+	(pt 512 96)
+	(pt 464 96)
+)
+(connector
+	(pt 496 80)
+	(pt 464 80)
+)
+(connector
+	(pt 480 320)
+	(pt 480 64)
+)
+(connector
+	(pt 480 64)
+	(pt 464 64)
+)
+(connector
+	(pt 256 320)
+	(pt 256 392)
+)
+(connector
+	(pt 288 408)
+	(pt 272 408)
+)
+(connector
+	(pt 288 392)
+	(pt 256 392)
+)
+(connector
+	(pt 256 704)
+	(pt 256 776)
+)
+(connector
+	(pt 272 720)
+	(pt 272 792)
+)
+(connector
+	(pt 288 792)
+	(pt 272 792)
+)
+(connector
+	(pt 288 776)
+	(pt 256 776)
+)
+(connector
+	(pt 368 64)
+	(pt 240 64)
+)
+(connector
+	(pt 368 80)
+	(pt 240 80)
+)
+(connector
+	(pt 368 96)
+	(pt 240 96)
+)
+(connector
+	(pt 368 112)
+	(pt 240 112)
+)
+(connector
+	(pt 368 128)
+	(pt 240 128)
+)
+(connector
+	(pt 368 144)
+	(pt 240 144)
+)
+(connector
+	(pt 368 160)
+	(pt 240 160)
+)
+(connector
+	(pt 368 176)
+	(pt 240 176)
+)
+(connector
+	(pt 368 192)
+	(pt 240 192)
+)
+(connector
+	(pt 368 208)
+	(pt 240 208)
+)
+(connector
+	(pt 368 224)
+	(pt 240 224)
+)
+(connector
+	(pt 368 240)
+	(pt 240 240)
+)
+(connector
+	(pt 368 256)
+	(pt 240 256)
+)
+(connector
+	(pt 368 272)
+	(pt 240 272)
+)
+(connector
+	(pt 368 288)
+	(pt 240 288)
+)
+(connector
+	(pt 368 304)
+	(pt 240 304)
+)
+(connector
+	(pt 368 448)
+	(pt 240 448)
+)
+(connector
+	(pt 368 464)
+	(pt 240 464)
+)
+(connector
+	(pt 368 480)
+	(pt 240 480)
+)
+(connector
+	(pt 368 496)
+	(pt 240 496)
+)
+(connector
+	(pt 368 512)
+	(pt 240 512)
+)
+(connector
+	(pt 368 528)
+	(pt 240 528)
+)
+(connector
+	(pt 368 544)
+	(pt 240 544)
+)
+(connector
+	(pt 368 560)
+	(pt 240 560)
+)
+(connector
+	(pt 368 576)
+	(pt 240 576)
+)
+(connector
+	(pt 368 592)
+	(pt 240 592)
+)
+(connector
+	(pt 368 608)
+	(pt 240 608)
+)
+(connector
+	(pt 368 624)
+	(pt 240 624)
+)
+(connector
+	(pt 368 640)
+	(pt 240 640)
+)
+(connector
+	(pt 368 656)
+	(pt 240 656)
+)
+(connector
+	(pt 368 672)
+	(pt 240 672)
+)
+(connector
+	(pt 368 688)
+	(pt 240 688)
+)
+(connector
+	(pt 240 320)
+	(pt 256 320)
+)
+(connector
+	(pt 256 320)
+	(pt 368 320)
+)
+(connector
+	(pt 240 704)
+	(pt 256 704)
+)
+(connector
+	(pt 256 704)
+	(pt 368 704)
+)
+(connector
+	(pt 240 720)
+	(pt 272 720)
+)
+(connector
+	(pt 272 720)
+	(pt 368 720)
+)
+(connector
+	(pt 272 336)
+	(pt 272 408)
+)
+(connector
+	(pt 240 336)
+	(pt 272 336)
+)
+(connector
+	(pt 272 336)
+	(pt 368 336)
+)
+(junction (pt 256 320))
+(junction (pt 256 704))
+(junction (pt 272 720))
+(junction (pt 272 336))
diff --git a/quarter_selector_8b/quarter_selector_8b.bsf b/quarter_selector_8b/quarter_selector_8b.bsf
new file mode 100644
index 0000000..fb32777
--- /dev/null
+++ b/quarter_selector_8b/quarter_selector_8b.bsf
@@ -0,0 +1,337 @@
+/*
+WARNING: Do NOT edit the input and output ports in this file in a text
+editor if you plan to continue editing the block that represents it in
+the Block Editor! File corruption is VERY likely to occur.
+*/
+/*
+Copyright (C) 1991-2009 Altera Corporation
+Your use of Altera Corporation's design tools, logic functions 
+and other software and tools, and its AMPP partner logic 
+functions, and any output files from any of the foregoing 
+(including device programming or simulation files), and any 
+associated documentation or information are expressly subject 
+to the terms and conditions of the Altera Program License 
+Subscription Agreement, Altera MegaCore Function License 
+Agreement, or other applicable license agreement, including, 
+without limitation, that your use is for the sole purpose of 
+programming logic devices manufactured by Altera and sold by 
+Altera or its authorized distributors.  Please refer to the 
+applicable agreement for further details.
+*/
+(header "symbol" (version "1.1"))
+(symbol
+	(rect 64 64 160 704)
+	(text "quarter_selector_8b" (rect 5 0 120 14)(font "Arial" (font_size 8)))
+	(text "inst" (rect 8 624 25 636)(font "Arial" ))
+	(port
+		(pt 0 32)
+		(input)
+		(text "A7" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A7" (rect 21 27 37 41)(font "Arial" (font_size 8)))
+		(line (pt 0 32)(pt 16 32)(line_width 1))
+	)
+	(port
+		(pt 0 48)
+		(input)
+		(text "A6" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A6" (rect 21 43 37 57)(font "Arial" (font_size 8)))
+		(line (pt 0 48)(pt 16 48)(line_width 1))
+	)
+	(port
+		(pt 0 64)
+		(input)
+		(text "A5" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A5" (rect 21 59 37 73)(font "Arial" (font_size 8)))
+		(line (pt 0 64)(pt 16 64)(line_width 1))
+	)
+	(port
+		(pt 0 80)
+		(input)
+		(text "A4" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A4" (rect 21 75 37 89)(font "Arial" (font_size 8)))
+		(line (pt 0 80)(pt 16 80)(line_width 1))
+	)
+	(port
+		(pt 0 96)
+		(input)
+		(text "A3" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A3" (rect 21 91 37 105)(font "Arial" (font_size 8)))
+		(line (pt 0 96)(pt 16 96)(line_width 1))
+	)
+	(port
+		(pt 0 112)
+		(input)
+		(text "A2" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A2" (rect 21 107 37 121)(font "Arial" (font_size 8)))
+		(line (pt 0 112)(pt 16 112)(line_width 1))
+	)
+	(port
+		(pt 0 128)
+		(input)
+		(text "A1" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A1" (rect 21 123 37 137)(font "Arial" (font_size 8)))
+		(line (pt 0 128)(pt 16 128)(line_width 1))
+	)
+	(port
+		(pt 0 144)
+		(input)
+		(text "A0" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A0" (rect 21 139 37 153)(font "Arial" (font_size 8)))
+		(line (pt 0 144)(pt 16 144)(line_width 1))
+	)
+	(port
+		(pt 0 160)
+		(input)
+		(text "B7" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B7" (rect 21 155 36 169)(font "Arial" (font_size 8)))
+		(line (pt 0 160)(pt 16 160)(line_width 1))
+	)
+	(port
+		(pt 0 176)
+		(input)
+		(text "B6" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B6" (rect 21 171 36 185)(font "Arial" (font_size 8)))
+		(line (pt 0 176)(pt 16 176)(line_width 1))
+	)
+	(port
+		(pt 0 192)
+		(input)
+		(text "B5" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B5" (rect 21 187 36 201)(font "Arial" (font_size 8)))
+		(line (pt 0 192)(pt 16 192)(line_width 1))
+	)
+	(port
+		(pt 0 208)
+		(input)
+		(text "B4" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B4" (rect 21 203 36 217)(font "Arial" (font_size 8)))
+		(line (pt 0 208)(pt 16 208)(line_width 1))
+	)
+	(port
+		(pt 0 224)
+		(input)
+		(text "B3" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B3" (rect 21 219 36 233)(font "Arial" (font_size 8)))
+		(line (pt 0 224)(pt 16 224)(line_width 1))
+	)
+	(port
+		(pt 0 240)
+		(input)
+		(text "B2" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B2" (rect 21 235 36 249)(font "Arial" (font_size 8)))
+		(line (pt 0 240)(pt 16 240)(line_width 1))
+	)
+	(port
+		(pt 0 256)
+		(input)
+		(text "B1" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B1" (rect 21 251 36 265)(font "Arial" (font_size 8)))
+		(line (pt 0 256)(pt 16 256)(line_width 1))
+	)
+	(port
+		(pt 0 272)
+		(input)
+		(text "B0" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B0" (rect 21 267 36 281)(font "Arial" (font_size 8)))
+		(line (pt 0 272)(pt 16 272)(line_width 1))
+	)
+	(port
+		(pt 0 544)
+		(input)
+		(text "AY" (rect 0 0 18 14)(font "Arial" (font_size 8)))
+		(text "AY" (rect 21 539 39 553)(font "Arial" (font_size 8)))
+		(line (pt 0 544)(pt 16 544)(line_width 1))
+	)
+	(port
+		(pt 0 560)
+		(input)
+		(text "BY" (rect 0 0 17 14)(font "Arial" (font_size 8)))
+		(text "BY" (rect 21 555 38 569)(font "Arial" (font_size 8)))
+		(line (pt 0 560)(pt 16 560)(line_width 1))
+	)
+	(port
+		(pt 0 288)
+		(input)
+		(text "C7" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "C7" (rect 21 283 36 297)(font "Arial" (font_size 8)))
+		(line (pt 0 288)(pt 16 288)(line_width 1))
+	)
+	(port
+		(pt 0 304)
+		(input)
+		(text "C6" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "C6" (rect 21 299 36 313)(font "Arial" (font_size 8)))
+		(line (pt 0 304)(pt 16 304)(line_width 1))
+	)
+	(port
+		(pt 0 320)
+		(input)
+		(text "C5" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "C5" (rect 21 315 36 329)(font "Arial" (font_size 8)))
+		(line (pt 0 320)(pt 16 320)(line_width 1))
+	)
+	(port
+		(pt 0 336)
+		(input)
+		(text "C4" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "C4" (rect 21 331 36 345)(font "Arial" (font_size 8)))
+		(line (pt 0 336)(pt 16 336)(line_width 1))
+	)
+	(port
+		(pt 0 352)
+		(input)
+		(text "C3" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "C3" (rect 21 347 36 361)(font "Arial" (font_size 8)))
+		(line (pt 0 352)(pt 16 352)(line_width 1))
+	)
+	(port
+		(pt 0 368)
+		(input)
+		(text "C2" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "C2" (rect 21 363 36 377)(font "Arial" (font_size 8)))
+		(line (pt 0 368)(pt 16 368)(line_width 1))
+	)
+	(port
+		(pt 0 384)
+		(input)
+		(text "C1" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "C1" (rect 21 379 36 393)(font "Arial" (font_size 8)))
+		(line (pt 0 384)(pt 16 384)(line_width 1))
+	)
+	(port
+		(pt 0 400)
+		(input)
+		(text "C0" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "C0" (rect 21 395 36 409)(font "Arial" (font_size 8)))
+		(line (pt 0 400)(pt 16 400)(line_width 1))
+	)
+	(port
+		(pt 0 416)
+		(input)
+		(text "D7" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D7" (rect 21 411 36 425)(font "Arial" (font_size 8)))
+		(line (pt 0 416)(pt 16 416)(line_width 1))
+	)
+	(port
+		(pt 0 432)
+		(input)
+		(text "D6" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D6" (rect 21 427 36 441)(font "Arial" (font_size 8)))
+		(line (pt 0 432)(pt 16 432)(line_width 1))
+	)
+	(port
+		(pt 0 448)
+		(input)
+		(text "D5" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D5" (rect 21 443 36 457)(font "Arial" (font_size 8)))
+		(line (pt 0 448)(pt 16 448)(line_width 1))
+	)
+	(port
+		(pt 0 464)
+		(input)
+		(text "D4" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D4" (rect 21 459 36 473)(font "Arial" (font_size 8)))
+		(line (pt 0 464)(pt 16 464)(line_width 1))
+	)
+	(port
+		(pt 0 480)
+		(input)
+		(text "D3" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D3" (rect 21 475 36 489)(font "Arial" (font_size 8)))
+		(line (pt 0 480)(pt 16 480)(line_width 1))
+	)
+	(port
+		(pt 0 496)
+		(input)
+		(text "D2" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D2" (rect 21 491 36 505)(font "Arial" (font_size 8)))
+		(line (pt 0 496)(pt 16 496)(line_width 1))
+	)
+	(port
+		(pt 0 512)
+		(input)
+		(text "D1" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D1" (rect 21 507 36 521)(font "Arial" (font_size 8)))
+		(line (pt 0 512)(pt 16 512)(line_width 1))
+	)
+	(port
+		(pt 0 528)
+		(input)
+		(text "D0" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D0" (rect 21 523 36 537)(font "Arial" (font_size 8)))
+		(line (pt 0 528)(pt 16 528)(line_width 1))
+	)
+	(port
+		(pt 0 576)
+		(input)
+		(text "CY" (rect 0 0 17 14)(font "Arial" (font_size 8)))
+		(text "CY" (rect 21 571 38 585)(font "Arial" (font_size 8)))
+		(line (pt 0 576)(pt 16 576)(line_width 1))
+	)
+	(port
+		(pt 0 592)
+		(input)
+		(text "DY" (rect 0 0 17 14)(font "Arial" (font_size 8)))
+		(text "DY" (rect 21 587 38 601)(font "Arial" (font_size 8)))
+		(line (pt 0 592)(pt 16 592)(line_width 1))
+	)
+	(port
+		(pt 96 32)
+		(output)
+		(text "Y7" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y7" (rect 59 27 75 41)(font "Arial" (font_size 8)))
+		(line (pt 96 32)(pt 80 32)(line_width 1))
+	)
+	(port
+		(pt 96 48)
+		(output)
+		(text "Y6" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y6" (rect 59 43 75 57)(font "Arial" (font_size 8)))
+		(line (pt 96 48)(pt 80 48)(line_width 1))
+	)
+	(port
+		(pt 96 64)
+		(output)
+		(text "Y5" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y5" (rect 59 59 75 73)(font "Arial" (font_size 8)))
+		(line (pt 96 64)(pt 80 64)(line_width 1))
+	)
+	(port
+		(pt 96 80)
+		(output)
+		(text "Y4" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y4" (rect 59 75 75 89)(font "Arial" (font_size 8)))
+		(line (pt 96 80)(pt 80 80)(line_width 1))
+	)
+	(port
+		(pt 96 96)
+		(output)
+		(text "Y3" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y3" (rect 59 91 75 105)(font "Arial" (font_size 8)))
+		(line (pt 96 96)(pt 80 96)(line_width 1))
+	)
+	(port
+		(pt 96 112)
+		(output)
+		(text "Y2" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y2" (rect 59 107 75 121)(font "Arial" (font_size 8)))
+		(line (pt 96 112)(pt 80 112)(line_width 1))
+	)
+	(port
+		(pt 96 128)
+		(output)
+		(text "Y1" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y1" (rect 59 123 75 137)(font "Arial" (font_size 8)))
+		(line (pt 96 128)(pt 80 128)(line_width 1))
+	)
+	(port
+		(pt 96 144)
+		(output)
+		(text "Y0" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Y0" (rect 59 139 75 153)(font "Arial" (font_size 8)))
+		(line (pt 96 144)(pt 80 144)(line_width 1))
+	)
+	(drawing
+		(rectangle (rect 16 16 80 624)(line_width 1))
+	)
+)
diff --git a/quarter_selector_8b/quarter_selector_8b.dpf b/quarter_selector_8b/quarter_selector_8b.dpf
new file mode 100644
index 0000000..abe19d9
--- /dev/null
+++ b/quarter_selector_8b/quarter_selector_8b.dpf
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<pin_planner>
+	<pin_info>
+	</pin_info>
+	<buses>
+	</buses>
+	<group_file_association>
+	</group_file_association>
+	<pin_planner_file_specifies>
+	</pin_planner_file_specifies>
+</pin_planner>
diff --git a/quarter_selector_8b/quarter_selector_8b.qpf b/quarter_selector_8b/quarter_selector_8b.qpf
new file mode 100644
index 0000000..4b53b98
--- /dev/null
+++ b/quarter_selector_8b/quarter_selector_8b.qpf
@@ -0,0 +1,30 @@
+# -------------------------------------------------------------------------- #
+#
+# Copyright (C) 1991-2009 Altera Corporation
+# Your use of Altera Corporation's design tools, logic functions 
+# and other software and tools, and its AMPP partner logic 
+# functions, and any output files from any of the foregoing 
+# (including device programming or simulation files), and any 
+# associated documentation or information are expressly subject 
+# to the terms and conditions of the Altera Program License 
+# Subscription Agreement, Altera MegaCore Function License 
+# Agreement, or other applicable license agreement, including, 
+# without limitation, that your use is for the sole purpose of 
+# programming logic devices manufactured by Altera and sold by 
+# Altera or its authorized distributors.  Please refer to the 
+# applicable agreement for further details.
+#
+# -------------------------------------------------------------------------- #
+#
+# Quartus II
+# Version 9.0 Build 235 06/17/2009 Service Pack 2 SJ Web Edition
+# Date created = 16:03:48  April 07, 2022
+#
+# -------------------------------------------------------------------------- #
+
+QUARTUS_VERSION = "9.0"
+DATE = "16:03:48  April 07, 2022"
+
+# Revisions
+
+PROJECT_REVISION = "quarter_selector_8b"
diff --git a/quarter_selector_8b/quarter_selector_8b.qsf b/quarter_selector_8b/quarter_selector_8b.qsf
new file mode 100644
index 0000000..fd07a32
--- /dev/null
+++ b/quarter_selector_8b/quarter_selector_8b.qsf
@@ -0,0 +1,48 @@
+# -------------------------------------------------------------------------- #
+#
+# Copyright (C) 1991-2009 Altera Corporation
+# Your use of Altera Corporation's design tools, logic functions 
+# and other software and tools, and its AMPP partner logic 
+# functions, and any output files from any of the foregoing 
+# (including device programming or simulation files), and any 
+# associated documentation or information are expressly subject 
+# to the terms and conditions of the Altera Program License 
+# Subscription Agreement, Altera MegaCore Function License 
+# Agreement, or other applicable license agreement, including, 
+# without limitation, that your use is for the sole purpose of 
+# programming logic devices manufactured by Altera and sold by 
+# Altera or its authorized distributors.  Please refer to the 
+# applicable agreement for further details.
+#
+# -------------------------------------------------------------------------- #
+#
+# Quartus II
+# Version 9.0 Build 235 06/17/2009 Service Pack 2 SJ Web Edition
+# Date created = 16:03:48  April 07, 2022
+#
+# -------------------------------------------------------------------------- #
+#
+# Notes:
+#
+# 1) The default values for assignments are stored in the file:
+#		quarter_selector_8b_assignment_defaults.qdf
+#    If this file doesn't exist, see file:
+#		assignment_defaults.qdf
+#
+# 2) Altera recommends that you do not modify this file. This
+#    file is updated automatically by the Quartus II software
+#    and any changes you make may be lost or overwritten.
+#
+# -------------------------------------------------------------------------- #
+
+
+set_global_assignment -name FAMILY "Cyclone II"
+set_global_assignment -name DEVICE EP2C8Q208C8
+set_global_assignment -name TOP_LEVEL_ENTITY quarter_selector_8b
+set_global_assignment -name ORIGINAL_QUARTUS_VERSION "9.0 SP2"
+set_global_assignment -name PROJECT_CREATION_TIME_DATE "16:03:48  APRIL 07, 2022"
+set_global_assignment -name LAST_QUARTUS_VERSION "9.0 SP2"
+set_global_assignment -name USE_GENERATED_PHYSICAL_CONSTRAINTS OFF -section_id eda_blast_fpga
+set_global_assignment -name MIN_CORE_JUNCTION_TEMP 0
+set_global_assignment -name MAX_CORE_JUNCTION_TEMP 85
+set_global_assignment -name BDF_FILE quarter_selector_8b.bdf
\ No newline at end of file