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diff --git a/student_files_2015/student_files_2015/prj2/quartus_proj/DE0_CAMERA_MOUSE/db/a_gray2bin_tgb.tdf b/student_files_2015/student_files_2015/prj2/quartus_proj/DE0_CAMERA_MOUSE/db/a_gray2bin_tgb.tdf
new file mode 100644
index 0000000..3e96f62
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+++ b/student_files_2015/student_files_2015/prj2/quartus_proj/DE0_CAMERA_MOUSE/db/a_gray2bin_tgb.tdf
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+--a_gray2bin carry_chain="MANUAL" carry_chain_length=48 device_family="Cyclone III" ignore_carry_buffers="OFF" WIDTH=10 bin gray
+--VERSION_BEGIN 13.0 cbx_a_gray2bin 2013:06:12:18:03:43:SJ cbx_mgl 2013:06:12:18:05:10:SJ  VERSION_END
+
+
+-- Copyright (C) 1991-2013 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.
+
+
+
+--synthesis_resources = 
+SUBDESIGN a_gray2bin_tgb
+( 
+	bin[9..0]	:	output;
+	gray[9..0]	:	input;
+) 
+VARIABLE 
+	xor0	: WIRE;
+	xor1	: WIRE;
+	xor2	: WIRE;
+	xor3	: WIRE;
+	xor4	: WIRE;
+	xor5	: WIRE;
+	xor6	: WIRE;
+	xor7	: WIRE;
+	xor8	: WIRE;
+
+BEGIN 
+	bin[] = ( gray[9..9], xor8, xor7, xor6, xor5, xor4, xor3, xor2, xor1, xor0);
+	xor0 = (gray[0..0] $ xor1);
+	xor1 = (gray[1..1] $ xor2);
+	xor2 = (gray[2..2] $ xor3);
+	xor3 = (gray[3..3] $ xor4);
+	xor4 = (gray[4..4] $ xor5);
+	xor5 = (gray[5..5] $ xor6);
+	xor6 = (gray[6..6] $ xor7);
+	xor7 = (gray[7..7] $ xor8);
+	xor8 = (gray[9..9] $ gray[8..8]);
+END;
+--VALID FILE