diff --git a/.gitignore b/.gitignore
index 67d74ee..1f3e507 100644
--- a/.gitignore
+++ b/.gitignore
@@ -49,3 +49,5 @@
 **/PLLJ_PLLSPE_INFO.txt # The generated PLL specification file
 
 ~$*
+machine_alpha/folderhighlight-c9e654c8-5e1c-4d2b-a086-fae9f3219630.ico
+machine_alpha/desktop.ini
diff --git a/test_MDR/MDR_8b.bdf b/test_MDR/MDR_8b.bdf
new file mode 100644
index 0000000..d7e14af
--- /dev/null
+++ b/test_MDR/MDR_8b.bdf
@@ -0,0 +1,1671 @@
+/*
+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
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+)
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diff --git a/test_MDR/MDR_8b.bsf b/test_MDR/MDR_8b.bsf
new file mode 100644
index 0000000..53c17f3
--- /dev/null
+++ b/test_MDR/MDR_8b.bsf
@@ -0,0 +1,218 @@
+/*
+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 64 240 304)
+	(text "MDR_8b" (rect 5 0 52 14)(font "Arial" (font_size 8)))
+	(text "inst" (rect 8 224 25 236)(font "Arial" ))
+	(port
+		(pt 0 48)
+		(input)
+		(text "CLR" (rect 0 0 23 14)(font "Arial" (font_size 8)))
+		(text "CLR" (rect 21 43 44 57)(font "Arial" (font_size 8)))
+		(line (pt 0 48)(pt 16 48)(line_width 1))
+	)
+	(port
+		(pt 0 64)
+		(input)
+		(text "CP" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "CP" (rect 21 59 36 73)(font "Arial" (font_size 8)))
+		(line (pt 0 64)(pt 16 64)(line_width 1))
+	)
+	(port
+		(pt 0 80)
+		(input)
+		(text "D7" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D7" (rect 21 75 36 89)(font "Arial" (font_size 8)))
+		(line (pt 0 80)(pt 16 80)(line_width 1))
+	)
+	(port
+		(pt 0 96)
+		(input)
+		(text "D6" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D6" (rect 21 91 36 105)(font "Arial" (font_size 8)))
+		(line (pt 0 96)(pt 16 96)(line_width 1))
+	)
+	(port
+		(pt 0 112)
+		(input)
+		(text "D5" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D5" (rect 21 107 36 121)(font "Arial" (font_size 8)))
+		(line (pt 0 112)(pt 16 112)(line_width 1))
+	)
+	(port
+		(pt 0 128)
+		(input)
+		(text "D4" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D4" (rect 21 123 36 137)(font "Arial" (font_size 8)))
+		(line (pt 0 128)(pt 16 128)(line_width 1))
+	)
+	(port
+		(pt 0 144)
+		(input)
+		(text "D3" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D3" (rect 21 139 36 153)(font "Arial" (font_size 8)))
+		(line (pt 0 144)(pt 16 144)(line_width 1))
+	)
+	(port
+		(pt 0 160)
+		(input)
+		(text "D2" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D2" (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 "D1" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D1" (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 "D0" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D0" (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 "1BUS2MDR" (rect 0 0 64 14)(font "Arial" (font_size 8)))
+		(text "1BUS2MDR" (rect 21 203 85 217)(font "Arial" (font_size 8)))
+		(line (pt 0 208)(pt 16 208)(line_width 1))
+	)
+	(port
+		(pt 32 0)
+		(output)
+		(text "Q7" (rect 208 0 224 14)(font "Arial" (font_size 8)))
+		(text "Q7" (rect 24 24 38 40)(font "Arial" (font_size 8))(vertical))
+		(line (pt 32 0)(pt 32 16)(line_width 1))
+	)
+	(port
+		(pt 48 0)
+		(output)
+		(text "Q6" (rect 208 0 224 14)(font "Arial" (font_size 8)))
+		(text "Q6" (rect 40 24 54 40)(font "Arial" (font_size 8))(vertical))
+		(line (pt 48 0)(pt 48 16)(line_width 1))
+	)
+	(port
+		(pt 64 0)
+		(output)
+		(text "Q5" (rect 208 0 224 14)(font "Arial" (font_size 8)))
+		(text "Q5" (rect 56 24 70 40)(font "Arial" (font_size 8))(vertical))
+		(line (pt 64 0)(pt 64 16)(line_width 1))
+	)
+	(port
+		(pt 80 0)
+		(output)
+		(text "Q4" (rect 208 0 224 14)(font "Arial" (font_size 8)))
+		(text "Q4" (rect 72 24 86 40)(font "Arial" (font_size 8))(vertical))
+		(line (pt 80 0)(pt 80 16)(line_width 1))
+	)
+	(port
+		(pt 96 0)
+		(output)
+		(text "Q3" (rect 208 0 224 14)(font "Arial" (font_size 8)))
+		(text "Q3" (rect 88 24 102 40)(font "Arial" (font_size 8))(vertical))
+		(line (pt 96 0)(pt 96 16)(line_width 1))
+	)
+	(port
+		(pt 112 0)
+		(output)
+		(text "Q2" (rect 208 0 224 14)(font "Arial" (font_size 8)))
+		(text "Q2" (rect 104 24 118 40)(font "Arial" (font_size 8))(vertical))
+		(line (pt 112 0)(pt 112 16)(line_width 1))
+	)
+	(port
+		(pt 128 0)
+		(output)
+		(text "Q1" (rect 208 0 224 14)(font "Arial" (font_size 8)))
+		(text "Q1" (rect 120 24 134 40)(font "Arial" (font_size 8))(vertical))
+		(line (pt 128 0)(pt 128 16)(line_width 1))
+	)
+	(port
+		(pt 144 0)
+		(output)
+		(text "Q0" (rect 208 0 224 14)(font "Arial" (font_size 8)))
+		(text "Q0" (rect 136 24 150 40)(font "Arial" (font_size 8))(vertical))
+		(line (pt 144 0)(pt 144 16)(line_width 1))
+	)
+	(port
+		(pt 176 80)
+		(bidir)
+		(text "M7" (rect 56 0 72 14)(font "Arial" (font_size 8)))
+		(text "M7" (rect 139 75 155 89)(font "Arial" (font_size 8)))
+		(line (pt 176 80)(pt 160 80)(line_width 1))
+	)
+	(port
+		(pt 176 96)
+		(bidir)
+		(text "M6" (rect 56 0 72 14)(font "Arial" (font_size 8)))
+		(text "M6" (rect 139 91 155 105)(font "Arial" (font_size 8)))
+		(line (pt 176 96)(pt 160 96)(line_width 1))
+	)
+	(port
+		(pt 176 112)
+		(bidir)
+		(text "M5" (rect 56 0 72 14)(font "Arial" (font_size 8)))
+		(text "M5" (rect 139 107 155 121)(font "Arial" (font_size 8)))
+		(line (pt 176 112)(pt 160 112)(line_width 1))
+	)
+	(port
+		(pt 176 128)
+		(bidir)
+		(text "M4" (rect 56 0 72 14)(font "Arial" (font_size 8)))
+		(text "M4" (rect 139 123 155 137)(font "Arial" (font_size 8)))
+		(line (pt 176 128)(pt 160 128)(line_width 1))
+	)
+	(port
+		(pt 176 144)
+		(bidir)
+		(text "M3" (rect 56 0 72 14)(font "Arial" (font_size 8)))
+		(text "M3" (rect 139 139 155 153)(font "Arial" (font_size 8)))
+		(line (pt 176 144)(pt 160 144)(line_width 1))
+	)
+	(port
+		(pt 176 160)
+		(bidir)
+		(text "M2" (rect 56 0 72 14)(font "Arial" (font_size 8)))
+		(text "M2" (rect 139 155 155 169)(font "Arial" (font_size 8)))
+		(line (pt 176 160)(pt 160 160)(line_width 1))
+	)
+	(port
+		(pt 176 176)
+		(bidir)
+		(text "M1" (rect 56 0 72 14)(font "Arial" (font_size 8)))
+		(text "M1" (rect 139 171 155 185)(font "Arial" (font_size 8)))
+		(line (pt 176 176)(pt 160 176)(line_width 1))
+	)
+	(port
+		(pt 176 192)
+		(bidir)
+		(text "M0" (rect 56 0 72 14)(font "Arial" (font_size 8)))
+		(text "M0" (rect 139 187 155 201)(font "Arial" (font_size 8)))
+		(line (pt 176 192)(pt 160 192)(line_width 1))
+	)
+	(drawing
+		(rectangle (rect 16 16 160 224)(line_width 1))
+	)
+)
diff --git a/test_MDR/double_selector_8b.bdf b/test_MDR/double_selector_8b.bdf
new file mode 100644
index 0000000..b616c98
--- /dev/null
+++ b/test_MDR/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
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diff --git a/test_MDR/double_selector_8b.bsf b/test_MDR/double_selector_8b.bsf
new file mode 100644
index 0000000..5904e05
--- /dev/null
+++ b/test_MDR/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)
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+		(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)
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+		(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)
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+		(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
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+		(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)
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+		(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
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+		(text "b6" (rect 21 171 35 185)(font "Arial" (font_size 8)))
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+	)
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+		(text "b7" (rect 21 155 35 169)(font "Arial" (font_size 8)))
+		(line (pt 0 160)(pt 16 160)(line_width 1))
+	)
+	(port
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+		(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
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+		(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
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+		(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/test_MDR/register_8b.bdf b/test_MDR/register_8b.bdf
new file mode 100644
index 0000000..58d2990
--- /dev/null
+++ b/test_MDR/register_8b.bdf
@@ -0,0 +1,1004 @@
+/*
+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 32 40 200 56)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "CP" (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
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+	(rect 32 8 200 24)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "CLR" (rect 5 0 27 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
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+	(rect 32 80 200 96)
+	(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))
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+		(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))
+	)
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+)
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+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "D6" (rect 5 0 19 12)(font "Arial" ))
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+		(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)))
+)
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+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
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+)
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+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
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+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
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+	(text "D2" (rect 5 0 19 12)(font "Arial" ))
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+	)
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+	)
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+	)
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+	)
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+	(text "DFF" (rect 1 0 19 10)(font "Arial" (font_size 6)))
+	(text "inst7" (rect 3 68 26 80)(font "Arial" ))
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+		(input)
+		(text "CLRN" (rect 21 59 44 71)(font "Courier New" (bold)))
+		(text "CLRN" (rect 21 58 44 70)(font "Courier New" (bold)))
+		(line (pt 32 80)(pt 32 76)(line_width 1))
+	)
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+		(pt 0 40)
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+		(text "CLK" (rect 3 29 20 41)(font "Courier New" (bold))(invisible))
+		(text "CLK" (rect 3 29 20 41)(font "Courier New" (bold))(invisible))
+		(line (pt 0 40)(pt 12 40)(line_width 1))
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+	)
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+		(text "PRN" (rect 24 13 41 25)(font "Courier New" (bold)))
+		(text "PRN" (rect 24 11 41 23)(font "Courier New" (bold)))
+		(line (pt 32 4)(pt 32 0)(line_width 1))
+	)
+	(port
+		(pt 64 24)
+		(output)
+		(text "Q" (rect 45 20 50 32)(font "Courier New" (bold)))
+		(text "Q" (rect 45 20 50 32)(font "Courier New" (bold)))
+		(line (pt 52 24)(pt 64 24)(line_width 1))
+	)
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+		(line (pt 12 32)(pt 20 40)(line_width 1))
+		(circle (rect 28 4 36 12)(line_width 1))
+		(circle (rect 28 68 36 76)(line_width 1))
+	)
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+	(rect 344 736 408 816)
+	(text "DFF" (rect 1 0 19 10)(font "Arial" (font_size 6)))
+	(text "inst8" (rect 3 68 26 80)(font "Arial" ))
+	(port
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+		(input)
+		(text "CLRN" (rect 21 59 44 71)(font "Courier New" (bold)))
+		(text "CLRN" (rect 21 58 44 70)(font "Courier New" (bold)))
+		(line (pt 32 80)(pt 32 76)(line_width 1))
+	)
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+		(text "CLK" (rect 3 29 20 41)(font "Courier New" (bold))(invisible))
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+	)
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+	)
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+	)
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diff --git a/test_MDR/register_8b.bsf b/test_MDR/register_8b.bsf
new file mode 100644
index 0000000..938b8cc
--- /dev/null
+++ b/test_MDR/register_8b.bsf
@@ -0,0 +1,155 @@
+/*
+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 16 16 112 240)
+	(text "register_8b" (rect 5 0 69 14)(font "Arial" (font_size 8)))
+	(text "inst" (rect 8 208 25 220)(font "Arial" ))
+	(port
+		(pt 0 32)
+		(input)
+		(text "CLR" (rect 0 0 23 14)(font "Arial" (font_size 8)))
+		(text "CLR" (rect 21 27 44 41)(font "Arial" (font_size 8)))
+		(line (pt 0 32)(pt 16 32)(line_width 1))
+	)
+	(port
+		(pt 0 48)
+		(input)
+		(text "CP" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "CP" (rect 21 43 36 57)(font "Arial" (font_size 8)))
+		(line (pt 0 48)(pt 16 48)(line_width 1))
+	)
+	(port
+		(pt 0 64)
+		(input)
+		(text "D7" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D7" (rect 21 59 36 73)(font "Arial" (font_size 8)))
+		(line (pt 0 64)(pt 16 64)(line_width 1))
+	)
+	(port
+		(pt 0 80)
+		(input)
+		(text "D6" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D6" (rect 21 75 36 89)(font "Arial" (font_size 8)))
+		(line (pt 0 80)(pt 16 80)(line_width 1))
+	)
+	(port
+		(pt 0 96)
+		(input)
+		(text "D5" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D5" (rect 21 91 36 105)(font "Arial" (font_size 8)))
+		(line (pt 0 96)(pt 16 96)(line_width 1))
+	)
+	(port
+		(pt 0 112)
+		(input)
+		(text "D4" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D4" (rect 21 107 36 121)(font "Arial" (font_size 8)))
+		(line (pt 0 112)(pt 16 112)(line_width 1))
+	)
+	(port
+		(pt 0 128)
+		(input)
+		(text "D3" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D3" (rect 21 123 36 137)(font "Arial" (font_size 8)))
+		(line (pt 0 128)(pt 16 128)(line_width 1))
+	)
+	(port
+		(pt 0 144)
+		(input)
+		(text "D2" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D2" (rect 21 139 36 153)(font "Arial" (font_size 8)))
+		(line (pt 0 144)(pt 16 144)(line_width 1))
+	)
+	(port
+		(pt 0 160)
+		(input)
+		(text "D1" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D1" (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 "D0" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D0" (rect 21 171 36 185)(font "Arial" (font_size 8)))
+		(line (pt 0 176)(pt 16 176)(line_width 1))
+	)
+	(port
+		(pt 96 32)
+		(output)
+		(text "Q7" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Q7" (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 "Q6" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Q6" (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 "Q5" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Q5" (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 "Q4" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Q4" (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 "Q3" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Q3" (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 "Q2" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Q2" (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 "Q1" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Q1" (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 "Q0" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "Q0" (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 80 208)(line_width 1))
+	)
+)
diff --git a/test_MDR/test_MDR.bdf b/test_MDR/test_MDR.bdf
new file mode 100644
index 0000000..915e9f4
--- /dev/null
+++ b/test_MDR/test_MDR.bdf
@@ -0,0 +1,767 @@
+/*
+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 640 504 808 520)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "Z0" (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 640 488 808 504)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "Z1" (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 640 472 808 488)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "Z2" (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 640 456 808 472)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "Z3" (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 640 440 808 456)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "Z4" (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 640 424 808 440)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "Z5" (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 640 408 808 424)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "Z6" (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 640 392 808 408)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "Z7" (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 616 568 784 584)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "1BUS2MDR" (rect 5 0 64 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 1168 280 1344 296)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "MDR0" (rect 90 0 120 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 1168 264 1344 280)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "MDR1" (rect 90 0 120 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 1168 248 1344 264)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "MDR2" (rect 90 0 120 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 1168 232 1344 248)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "MDR3" (rect 90 0 120 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 1168 216 1344 232)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "MDR4" (rect 90 0 120 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 1168 200 1344 216)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "MDR5" (rect 90 0 120 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
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+		(line (pt 52 4)(pt 78 4)(line_width 1))
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+		(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 1168 184 1344 200)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "MDR6" (rect 90 0 120 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))
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+		(line (pt 52 12)(pt 52 4)(line_width 1))
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+		(line (pt 82 8)(pt 78 12)(line_width 1))
+		(line (pt 78 12)(pt 82 8)(line_width 1))
+	)
+)
+(pin
+	(output)
+	(rect 1168 168 1344 184)
+	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
+	(text "MDR7" (rect 90 0 120 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))
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+		(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
+	(bidir)
+	(rect 1168 504 1344 520)
+	(text "BIDIR" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "RAM0" (rect 90 0 119 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
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+		(line (pt 56 4)(pt 52 8)(line_width 1))
+		(line (pt 52 8)(pt 56 12)(line_width 1))
+	)
+	(text "VCC" (rect 4 7 24 17)(font "Arial" (font_size 6)))
+)
+(pin
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+	(rect 1168 488 1344 504)
+	(text "BIDIR" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "RAM1" (rect 90 0 119 12)(font "Arial" ))
+	(pt 0 8)
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+		(line (pt 52 8)(pt 56 12)(line_width 1))
+	)
+	(text "VCC" (rect 4 7 24 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(bidir)
+	(rect 1168 472 1344 488)
+	(text "BIDIR" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "RAM2" (rect 90 0 119 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
+		(line (pt 56 4)(pt 78 4)(line_width 1))
+		(line (pt 0 8)(pt 52 8)(line_width 1))
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+		(line (pt 78 12)(pt 82 8)(line_width 1))
+		(line (pt 56 4)(pt 52 8)(line_width 1))
+		(line (pt 52 8)(pt 56 12)(line_width 1))
+	)
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+)
+(pin
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+	(rect 1168 456 1344 472)
+	(text "BIDIR" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "RAM3" (rect 90 0 119 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
+		(line (pt 56 4)(pt 78 4)(line_width 1))
+		(line (pt 0 8)(pt 52 8)(line_width 1))
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+		(line (pt 78 12)(pt 82 8)(line_width 1))
+		(line (pt 56 4)(pt 52 8)(line_width 1))
+		(line (pt 52 8)(pt 56 12)(line_width 1))
+	)
+	(text "VCC" (rect 4 7 24 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(bidir)
+	(rect 1168 440 1344 456)
+	(text "BIDIR" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "RAM4" (rect 90 0 119 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
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+		(line (pt 52 8)(pt 56 12)(line_width 1))
+	)
+	(text "VCC" (rect 4 7 24 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(bidir)
+	(rect 1168 424 1344 440)
+	(text "BIDIR" (rect 1 0 25 10)(font "Arial" (font_size 6)))
+	(text "RAM5" (rect 90 0 119 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
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+	)
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+)
+(pin
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+	(text "RAM6" (rect 90 0 119 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
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+		(line (pt 56 4)(pt 52 8)(line_width 1))
+		(line (pt 52 8)(pt 56 12)(line_width 1))
+	)
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+)
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+	(text "RAM7" (rect 90 0 119 12)(font "Arial" ))
+	(pt 0 8)
+	(drawing
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+		(line (pt 78 12)(pt 82 8)(line_width 1))
+		(line (pt 56 4)(pt 52 8)(line_width 1))
+		(line (pt 52 8)(pt 56 12)(line_width 1))
+	)
+	(text "VCC" (rect 4 7 24 17)(font "Arial" (font_size 6)))
+)
+(symbol
+	(rect 880 320 1056 560)
+	(text "MDR_8b" (rect 5 0 52 14)(font "Arial" (font_size 8)))
+	(text "inst" (rect 8 224 25 236)(font "Arial" ))
+	(port
+		(pt 0 48)
+		(input)
+		(text "CLR" (rect 0 0 23 14)(font "Arial" (font_size 8)))
+		(text "CLR" (rect 21 43 44 57)(font "Arial" (font_size 8)))
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+	)
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+		(input)
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+		(text "CP" (rect 21 59 36 73)(font "Arial" (font_size 8)))
+		(line (pt 0 64)(pt 16 64)(line_width 1))
+	)
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+		(input)
+		(text "D7" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D7" (rect 21 75 36 89)(font "Arial" (font_size 8)))
+		(line (pt 0 80)(pt 16 80)(line_width 1))
+	)
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+		(input)
+		(text "D6" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D6" (rect 21 91 36 105)(font "Arial" (font_size 8)))
+		(line (pt 0 96)(pt 16 96)(line_width 1))
+	)
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+		(input)
+		(text "D5" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D5" (rect 21 107 36 121)(font "Arial" (font_size 8)))
+		(line (pt 0 112)(pt 16 112)(line_width 1))
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+		(text "D4" (rect 21 123 36 137)(font "Arial" (font_size 8)))
+		(line (pt 0 128)(pt 16 128)(line_width 1))
+	)
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+		(input)
+		(text "D3" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D3" (rect 21 139 36 153)(font "Arial" (font_size 8)))
+		(line (pt 0 144)(pt 16 144)(line_width 1))
+	)
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+		(input)
+		(text "D2" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D2" (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 "D1" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D1" (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 "D0" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "D0" (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 "1BUS2MDR" (rect 0 0 64 14)(font "Arial" (font_size 8)))
+		(text "1BUS2MDR" (rect 21 203 85 217)(font "Arial" (font_size 8)))
+		(line (pt 0 208)(pt 16 208)(line_width 1))
+	)
+	(port
+		(pt 32 0)
+		(output)
+		(text "Q7" (rect 208 0 224 14)(font "Arial" (font_size 8)))
+		(text "Q7" (rect 24 24 38 40)(font "Arial" (font_size 8))(vertical))
+		(line (pt 32 0)(pt 32 16)(line_width 1))
+	)
+	(port
+		(pt 48 0)
+		(output)
+		(text "Q6" (rect 208 0 224 14)(font "Arial" (font_size 8)))
+		(text "Q6" (rect 40 24 54 40)(font "Arial" (font_size 8))(vertical))
+		(line (pt 48 0)(pt 48 16)(line_width 1))
+	)
+	(port
+		(pt 64 0)
+		(output)
+		(text "Q5" (rect 208 0 224 14)(font "Arial" (font_size 8)))
+		(text "Q5" (rect 56 24 70 40)(font "Arial" (font_size 8))(vertical))
+		(line (pt 64 0)(pt 64 16)(line_width 1))
+	)
+	(port
+		(pt 80 0)
+		(output)
+		(text "Q4" (rect 208 0 224 14)(font "Arial" (font_size 8)))
+		(text "Q4" (rect 72 24 86 40)(font "Arial" (font_size 8))(vertical))
+		(line (pt 80 0)(pt 80 16)(line_width 1))
+	)
+	(port
+		(pt 96 0)
+		(output)
+		(text "Q3" (rect 208 0 224 14)(font "Arial" (font_size 8)))
+		(text "Q3" (rect 88 24 102 40)(font "Arial" (font_size 8))(vertical))
+		(line (pt 96 0)(pt 96 16)(line_width 1))
+	)
+	(port
+		(pt 112 0)
+		(output)
+		(text "Q2" (rect 208 0 224 14)(font "Arial" (font_size 8)))
+		(text "Q2" (rect 104 24 118 40)(font "Arial" (font_size 8))(vertical))
+		(line (pt 112 0)(pt 112 16)(line_width 1))
+	)
+	(port
+		(pt 128 0)
+		(output)
+		(text "Q1" (rect 208 0 224 14)(font "Arial" (font_size 8)))
+		(text "Q1" (rect 120 24 134 40)(font "Arial" (font_size 8))(vertical))
+		(line (pt 128 0)(pt 128 16)(line_width 1))
+	)
+	(port
+		(pt 144 0)
+		(output)
+		(text "Q0" (rect 208 0 224 14)(font "Arial" (font_size 8)))
+		(text "Q0" (rect 136 24 150 40)(font "Arial" (font_size 8))(vertical))
+		(line (pt 144 0)(pt 144 16)(line_width 1))
+	)
+	(port
+		(pt 176 80)
+		(bidir)
+		(text "M7" (rect 56 0 72 14)(font "Arial" (font_size 8)))
+		(text "M7" (rect 139 75 155 89)(font "Arial" (font_size 8)))
+		(line (pt 176 80)(pt 160 80)(line_width 1))
+	)
+	(port
+		(pt 176 96)
+		(bidir)
+		(text "M6" (rect 56 0 72 14)(font "Arial" (font_size 8)))
+		(text "M6" (rect 139 91 155 105)(font "Arial" (font_size 8)))
+		(line (pt 176 96)(pt 160 96)(line_width 1))
+	)
+	(port
+		(pt 176 112)
+		(bidir)
+		(text "M5" (rect 56 0 72 14)(font "Arial" (font_size 8)))
+		(text "M5" (rect 139 107 155 121)(font "Arial" (font_size 8)))
+		(line (pt 176 112)(pt 160 112)(line_width 1))
+	)
+	(port
+		(pt 176 128)
+		(bidir)
+		(text "M4" (rect 56 0 72 14)(font "Arial" (font_size 8)))
+		(text "M4" (rect 139 123 155 137)(font "Arial" (font_size 8)))
+		(line (pt 176 128)(pt 160 128)(line_width 1))
+	)
+	(port
+		(pt 176 144)
+		(bidir)
+		(text "M3" (rect 56 0 72 14)(font "Arial" (font_size 8)))
+		(text "M3" (rect 139 139 155 153)(font "Arial" (font_size 8)))
+		(line (pt 176 144)(pt 160 144)(line_width 1))
+	)
+	(port
+		(pt 176 160)
+		(bidir)
+		(text "M2" (rect 56 0 72 14)(font "Arial" (font_size 8)))
+		(text "M2" (rect 139 155 155 169)(font "Arial" (font_size 8)))
+		(line (pt 176 160)(pt 160 160)(line_width 1))
+	)
+	(port
+		(pt 176 176)
+		(bidir)
+		(text "M1" (rect 56 0 72 14)(font "Arial" (font_size 8)))
+		(text "M1" (rect 139 171 155 185)(font "Arial" (font_size 8)))
+		(line (pt 176 176)(pt 160 176)(line_width 1))
+	)
+	(port
+		(pt 176 192)
+		(bidir)
+		(text "M0" (rect 56 0 72 14)(font "Arial" (font_size 8)))
+		(text "M0" (rect 139 187 155 201)(font "Arial" (font_size 8)))
+		(line (pt 176 192)(pt 160 192)(line_width 1))
+	)
+	(drawing
+		(rectangle (rect 16 16 160 224)(line_width 1))
+	)
+)
+(connector
+	(pt 1056 400)
+	(pt 1168 400)
+)
+(connector
+	(pt 1056 416)
+	(pt 1168 416)
+)
+(connector
+	(pt 1056 432)
+	(pt 1168 432)
+)
+(connector
+	(pt 1056 448)
+	(pt 1168 448)
+)
+(connector
+	(pt 1056 464)
+	(pt 1168 464)
+)
+(connector
+	(pt 1056 480)
+	(pt 1168 480)
+)
+(connector
+	(pt 1056 496)
+	(pt 1168 496)
+)
+(connector
+	(pt 1056 512)
+	(pt 1168 512)
+)
+(connector
+	(pt 808 512)
+	(pt 880 512)
+)
+(connector
+	(pt 808 496)
+	(pt 880 496)
+)
+(connector
+	(pt 808 480)
+	(pt 880 480)
+)
+(connector
+	(pt 808 464)
+	(pt 880 464)
+)
+(connector
+	(pt 808 448)
+	(pt 880 448)
+)
+(connector
+	(pt 808 432)
+	(pt 880 432)
+)
+(connector
+	(pt 808 416)
+	(pt 880 416)
+)
+(connector
+	(pt 808 400)
+	(pt 880 400)
+)
+(connector
+	(pt 784 576)
+	(pt 856 576)
+)
+(connector
+	(pt 856 576)
+	(pt 856 528)
+)
+(connector
+	(pt 856 528)
+	(pt 880 528)
+)
+(connector
+	(pt 1024 320)
+	(pt 1024 288)
+)
+(connector
+	(pt 1024 288)
+	(pt 1168 288)
+)
+(connector
+	(pt 1008 320)
+	(pt 1008 272)
+)
+(connector
+	(pt 1008 272)
+	(pt 1168 272)
+)
+(connector
+	(pt 992 320)
+	(pt 992 256)
+)
+(connector
+	(pt 992 256)
+	(pt 1168 256)
+)
+(connector
+	(pt 976 320)
+	(pt 976 240)
+)
+(connector
+	(pt 976 240)
+	(pt 1168 240)
+)
+(connector
+	(pt 960 320)
+	(pt 960 224)
+)
+(connector
+	(pt 960 224)
+	(pt 1168 224)
+)
+(connector
+	(pt 944 320)
+	(pt 944 208)
+)
+(connector
+	(pt 944 208)
+	(pt 1168 208)
+)
+(connector
+	(pt 928 320)
+	(pt 928 192)
+)
+(connector
+	(pt 928 192)
+	(pt 1168 192)
+)
+(connector
+	(pt 912 320)
+	(pt 912 176)
+)
+(connector
+	(pt 912 176)
+	(pt 1168 176)
+)
diff --git a/test_MDR/test_MDR.dpf b/test_MDR/test_MDR.dpf
new file mode 100644
index 0000000..abe19d9
--- /dev/null
+++ b/test_MDR/test_MDR.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/test_MDR/test_MDR.qpf b/test_MDR/test_MDR.qpf
new file mode 100644
index 0000000..fd3dce4
--- /dev/null
+++ b/test_MDR/test_MDR.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 = 19:33:16  May 18, 2022
+#
+# -------------------------------------------------------------------------- #
+
+QUARTUS_VERSION = "9.0"
+DATE = "19:33:16  May 18, 2022"
+
+# Revisions
+
+PROJECT_REVISION = "test_MDR"
diff --git a/test_MDR/test_MDR.qsf b/test_MDR/test_MDR.qsf
new file mode 100644
index 0000000..49be0bd
--- /dev/null
+++ b/test_MDR/test_MDR.qsf
@@ -0,0 +1,79 @@
+# -------------------------------------------------------------------------- #
+#
+# 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 = 19:33:16  May 18, 2022
+#
+# -------------------------------------------------------------------------- #
+#
+# Notes:
+#
+# 1) The default values for assignments are stored in the file:
+#		test_MDR_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 test_MDR
+set_global_assignment -name ORIGINAL_QUARTUS_VERSION "9.0 SP2"
+set_global_assignment -name PROJECT_CREATION_TIME_DATE "19:33:16  MAY 18, 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_instance_assignment -name PARTITION_HIERARCHY root_partition -to | -section_id Top
+set_global_assignment -name PARTITION_NETLIST_TYPE SOURCE -section_id Top
+set_global_assignment -name PARTITION_COLOR 16764057 -section_id Top
+set_global_assignment -name LL_ROOT_REGION ON -section_id "Root Region"
+set_global_assignment -name LL_MEMBER_STATE LOCKED -section_id "Root Region"
+set_global_assignment -name BDF_FILE test_MDR.bdf
+set_global_assignment -name STRATIX_DEVICE_IO_STANDARD "3.3-V LVTTL"
+set_location_assignment PIN_67 -to 1BUS2MDR
+set_location_assignment PIN_77 -to Z0
+set_location_assignment PIN_80 -to Z1
+set_location_assignment PIN_81 -to Z2
+set_location_assignment PIN_82 -to Z3
+set_location_assignment PIN_84 -to Z4
+set_location_assignment PIN_86 -to Z5
+set_location_assignment PIN_87 -to Z6
+set_location_assignment PIN_88 -to Z7
+set_location_assignment PIN_142 -to MDR0
+set_location_assignment PIN_143 -to MDR1
+set_location_assignment PIN_144 -to MDR2
+set_location_assignment PIN_145 -to MDR3
+set_location_assignment PIN_146 -to MDR4
+set_location_assignment PIN_147 -to MDR5
+set_location_assignment PIN_149 -to MDR6
+set_location_assignment PIN_150 -to MDR7
+set_location_assignment PIN_168 -to RAM0
+set_location_assignment PIN_169 -to RAM1
+set_location_assignment PIN_170 -to RAM2
+set_location_assignment PIN_171 -to RAM3
+set_location_assignment PIN_173 -to RAM4
+set_location_assignment PIN_175 -to RAM5
+set_location_assignment PIN_176 -to RAM6
+set_location_assignment PIN_179 -to RAM7
\ No newline at end of file