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+	(pt 760 128)
+	(pt 760 -32)
+)
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+	(pt 288 -32)
+	(pt 760 -32)
+)
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+	(pt 768 112)
+	(pt 768 -40)
+)
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+	(pt 280 -40)
+	(pt 768 -40)
+)
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+	(pt 776 96)
+	(pt 776 -48)
+)
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+	(pt 272 -48)
+	(pt 776 -48)
+)
+(connector
+	(pt 784 80)
+	(pt 784 -56)
+)
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+	(pt 264 -56)
+	(pt 784 -56)
+)
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+	(pt 792 -64)
+)
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+	(pt 256 -64)
+	(pt 792 -64)
+)
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+	(pt 800 48)
+	(pt 800 -72)
+)
+(connector
+	(pt 248 -72)
+	(pt 800 -72)
+)
+(connector
+	(pt 808 32)
+	(pt 808 -80)
+)
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+	(pt 240 -80)
+	(pt 808 -80)
+)
+(connector
+	(pt 816 16)
+	(pt 816 -88)
+)
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+	(pt 232 -88)
+	(pt 816 -88)
+)
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+	(pt 744 16)
+	(pt 816 16)
+)
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+	(pt 816 16)
+	(pt 832 16)
+)
+(connector
+	(pt 744 32)
+	(pt 808 32)
+)
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+	(pt 808 32)
+	(pt 832 32)
+)
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+	(pt 744 48)
+	(pt 800 48)
+)
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+	(pt 800 48)
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+)
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+	(pt 744 64)
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+	(pt 792 64)
+	(pt 832 64)
+)
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+	(pt 744 80)
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+	(pt 784 80)
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+)
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+)
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+	(pt 776 96)
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+)
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+	(pt 744 112)
+	(pt 768 112)
+)
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+	(pt 768 112)
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+)
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+	(pt 744 128)
+	(pt 760 128)
+)
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+	(pt 760 128)
+	(pt 832 128)
+)
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+	(pt 304 288)
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+)
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+	(pt 304 304)
+	(pt 216 304)
+)
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+	(pt 216 288)
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+)
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+	(pt 216 288)
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+	(pt 616 432)
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+	(pt 632 400)
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+)
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+	(pt 616 16)
+	(pt 616 432)
+)
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+	(pt 632 32)
+	(pt 632 400)
+)
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+	(pt 216 304)
+	(pt 216 368)
+)
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+	(pt 416 288)
+	(pt 416 368)
+)
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+	(pt 200 368)
+	(pt 216 368)
+)
+(connector
+	(pt 216 368)
+	(pt 416 368)
+)
+(junction (pt 480 80))
+(junction (pt 480 112))
+(junction (pt 480 144))
+(junction (pt 480 176))
+(junction (pt 480 208))
+(junction (pt 480 240))
+(junction (pt 480 272))
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+(junction (pt 768 112))
+(junction (pt 776 96))
+(junction (pt 784 80))
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+(junction (pt 216 304))
+(junction (pt 216 368))
diff --git a/machine_alpha/machine_alpha.bdf b/machine_alpha/machine_alpha.bdf
index 47f55b9..8b007c8 100644
--- a/machine_alpha/machine_alpha.bdf
+++ b/machine_alpha/machine_alpha.bdf
@@ -20,6 +20,9 @@ applicable agreement for further details.
 */
 //#pragma file_not_in_maxplusii_format
 (header "graphic" (version "1.3"))
+(properties
+	(page_setup "header_footer\nDate: %D\n%f\nProject: %j\n\nPage %p of %P\nRevision: %a\nmargin\n1\n1\n1\n1\norientation\n2\npaper_size\n9\npaper_source\n15\nfit_page_wide\n1\nfit_page_tall\n1\n")
+)
 (pin
 	(input)
 	(rect 440 296 608 312)
diff --git a/machine_alpha/machine_alpha.qsf b/machine_alpha/machine_alpha.qsf
index d65cf84..263feb5 100644
--- a/machine_alpha/machine_alpha.qsf
+++ b/machine_alpha/machine_alpha.qsf
@@ -179,4 +179,9 @@ set_location_assignment PIN_40 -to Rj_4
 set_location_assignment PIN_41 -to Rj_5
 set_location_assignment PIN_43 -to Rj_6
 set_location_assignment PIN_44 -to Rj_7
-set_location_assignment PIN_94 -to uIR3
\ No newline at end of file
+set_location_assignment PIN_94 -to uIR3
+set_global_assignment -name BDF_FILE print1.bdf
+set_global_assignment -name BDF_FILE print2.bdf
+set_global_assignment -name BDF_FILE print3.bdf
+set_global_assignment -name BDF_FILE print4.bdf
+set_global_assignment -name BDF_FILE print5.bdf
\ No newline at end of file
diff --git a/machine_alpha/print1.bdf b/machine_alpha/print1.bdf
new file mode 100644
index 0000000..a311aa4
--- /dev/null
+++ b/machine_alpha/print1.bdf
@@ -0,0 +1,4345 @@
+/*
+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 0 304 168 320)
+	(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
+	(input)
+	(rect 0 24 168 40)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "HALT" (rect 5 0 32 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
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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)))
+)
+(pin
+	(input)
+	(rect 0 152 168 168)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "CK_C" (rect 5 0 34 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
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+		(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 0 240 168 256)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "CK" (rect 5 0 20 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
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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)))
+)
+(pin
+	(input)
+	(rect 0 368 168 384)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "C_EN" (rect 5 0 34 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
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+		(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))
+	)
+	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
+)
+(pin
+	(input)
+	(rect 0 96 168 112)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "2nd_EN" (rect 5 0 43 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
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+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
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+)
+(pin
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+	(rect 96 1032 264 1048)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "C" (rect 5 0 13 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
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+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
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+)
+(pin
+	(input)
+	(rect 96 984 264 1000)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "V" (rect 5 0 12 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
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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)))
+)
+(pin
+	(input)
+	(rect 96 936 264 952)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "N" (rect 5 0 13 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
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+	(text "Z" (rect 5 0 12 12)(font "Arial" ))
+	(pt 168 8)
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+		(line (pt 92 12)(pt 92 4)(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)))
+)
+(pin
+	(input)
+	(rect 648 584 816 600)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "IR4" (rect 5 0 22 12)(font "Arial" ))
+	(pt 168 8)
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+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
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+)
+(pin
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+	(text "IR5" (rect 5 0 22 12)(font "Arial" ))
+	(pt 168 8)
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+(pin
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+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
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+)
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+(pin
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+)
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+	)
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+)
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+)
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diff --git a/machine_alpha/print2.bdf b/machine_alpha/print2.bdf
new file mode 100644
index 0000000..da97e5a
--- /dev/null
+++ b/machine_alpha/print2.bdf
@@ -0,0 +1,5847 @@
+/*
+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.
+*/
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+(text "溢出判断电路" (rect 800 688 1047 724)(font "等线" (color 255 45 129)(font_size 26)(bold)))
+(text "零值判断电路" (rect 912 896 1159 932)(font "等线" (color 101 0 223)(font_size 26)(bold)))
+(text "选择使用加法器进位还是" (rect 1496 1024 1950 1060)(font "等线" (color 206 131 4)(font_size 26)(bold)))
+(text "移位器进位" (rect 1496 1072 1702 1108)(font "等线" (color 206 131 4)(font_size 26)(bold)))
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+(text "Z寄存器" (rect 840 392 988 428)(font "等线" (color 0 0 0)(font_size 26)(bold)))
+(text "程序状态字和上一次的状态字" (rect 1304 592 1840 628)(font "等线" (color 0 0 0)(font_size 26)(bold)))
+(text "ALU操作译码及解析" (rect 1584 1328 1950 1364)(font "等线" (color 0 0 0)(font_size 26)(bold)))
+(text "移位器左右串入" (rect 984 592 1223 622)(font "等线" (color 0 0 0)(font_size 22)(bold)))
+(text "ALU" (rect 1424 272 1564 339)(font "等线" (color 0 0 0)(font_size 48)(bold)))
+(text "加法器（采用" (rect 1416 1792 1869 1859)(font "等线" (color 0 0 0)(font_size 48)(bold)))
+(text "74181的反逻辑）" (rect 1416 1880 2006 1947)(font "等线" (color 0 0 0)(font_size 48)(bold)))
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+(rectangle (rect 1096 1392 1176 1424)(color 0 128 0))
diff --git a/machine_alpha/print3.bdf b/machine_alpha/print3.bdf
new file mode 100644
index 0000000..b2168ba
--- /dev/null
+++ b/machine_alpha/print3.bdf
@@ -0,0 +1,5920 @@
+/*
+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"))
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+	(rect 936 1008 1104 1024)
+	(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))
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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)))
+)
+(pin
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+	(rect 936 992 1104 1008)
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+	(text "D1" (rect 5 0 19 12)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(line_width 1))
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+		(line (pt 92 12)(pt 92 4)(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)))
+)
+(pin
+	(input)
+	(rect 936 976 1104 992)
+	(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))
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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)))
+)
+(pin
+	(input)
+	(rect 936 960 1104 976)
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+	(pt 168 8)
+	(drawing
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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)))
+)
+(pin
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+	(pt 168 8)
+	(drawing
+		(line (pt 92 12)(pt 117 12)(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)))
+)
+(pin
+	(input)
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+	(pt 168 8)
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+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
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diff --git a/machine_alpha/print4.bdf b/machine_alpha/print4.bdf
new file mode 100644
index 0000000..bb91764
--- /dev/null
+++ b/machine_alpha/print4.bdf
@@ -0,0 +1,7893 @@
+/*
+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.
+*/
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+(text "2-4译码器" (rect 872 528 1133 578)(font "等线" (color 0 0 0)(font_size 36)(bold)))
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diff --git a/machine_alpha/print5.bdf b/machine_alpha/print5.bdf
new file mode 100644
index 0000000..35d46ae
--- /dev/null
+++ b/machine_alpha/print5.bdf
@@ -0,0 +1,3908 @@
+/*
+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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+		(line (pt 117 12)(pt 121 8)(line_width 1))
+	)
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diff --git a/machine_alpha/register_4x.bdf b/machine_alpha/register_4x.bdf
index cb19f0d..7b99d6d 100644
--- a/machine_alpha/register_4x.bdf
+++ b/machine_alpha/register_4x.bdf
@@ -22,7 +22,7 @@ applicable agreement for further details.
 (header "graphic" (version "1.3"))
 (pin
 	(input)
-	(rect 448 232 616 248)
+	(rect 632 232 800 248)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "D0" (rect 5 0 19 12)(font "Arial" ))
 	(pt 168 8)
@@ -38,7 +38,7 @@ applicable agreement for further details.
 )
 (pin
 	(input)
-	(rect 448 216 616 232)
+	(rect 632 216 800 232)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "D1" (rect 5 0 19 12)(font "Arial" ))
 	(pt 168 8)
@@ -54,7 +54,7 @@ applicable agreement for further details.
 )
 (pin
 	(input)
-	(rect 448 200 616 216)
+	(rect 632 200 800 216)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "D2" (rect 5 0 19 12)(font "Arial" ))
 	(pt 168 8)
@@ -70,7 +70,7 @@ applicable agreement for further details.
 )
 (pin
 	(input)
-	(rect 448 184 616 200)
+	(rect 632 184 800 200)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "D3" (rect 5 0 19 12)(font "Arial" ))
 	(pt 168 8)
@@ -86,7 +86,7 @@ applicable agreement for further details.
 )
 (pin
 	(input)
-	(rect 448 168 616 184)
+	(rect 632 168 800 184)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "D4" (rect 5 0 19 12)(font "Arial" ))
 	(pt 168 8)
@@ -102,7 +102,7 @@ applicable agreement for further details.
 )
 (pin
 	(input)
-	(rect 448 152 616 168)
+	(rect 632 152 800 168)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "D5" (rect 5 0 19 12)(font "Arial" ))
 	(pt 168 8)
@@ -118,7 +118,7 @@ applicable agreement for further details.
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 (pin
 	(input)
-	(rect 448 136 616 152)
+	(rect 632 136 800 152)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "D6" (rect 5 0 19 12)(font "Arial" ))
 	(pt 168 8)
@@ -134,7 +134,7 @@ applicable agreement for further details.
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 )
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 )
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 )
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 )
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 )
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 )
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-	(pt 1160 576)
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-	(pt 1152 560)
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-	(pt 1104 -560)
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-	(pt 1096 -576)
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-)
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-	(pt 1336 208)
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-)
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-	(pt 1328 192)
-)
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-)
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-	(pt 960 176)
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-)
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-)
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-	(pt 1328 -112)
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-)
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-	(pt 1336 -96)
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-)
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-)
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-	(pt 1096 -576)
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-)
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-	(pt 1104 -560)
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-)
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-)
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-)
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-	(pt 1128 -512)
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-	(pt 1136 -496)
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-)
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-)
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-)
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-	(pt 1696 16)
-	(pt 1696 -48)
-)
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-)
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-	(pt 1704 -32)
-)
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-)
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-)
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-)
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-)
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-)
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-)
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-	(pt 1640 1600)
-	(pt 1640 1512)
-)
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-	(pt 1640 1512)
-	(pt 1696 1512)
-)
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-	(pt 1616 1616)
-	(pt 1648 1616)
-)
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-	(pt 1648 1616)
-	(pt 1648 1528)
-)
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-	(pt 1648 1528)
-	(pt 1696 1528)
-)
-(junction (pt 816 240))
-(junction (pt 800 224))
-(junction (pt 784 208))
-(junction (pt 768 192))
-(junction (pt 752 176))
-(junction (pt 736 160))
-(junction (pt 720 144))
-(junction (pt 704 128))
-(junction (pt 816 472))
-(junction (pt 800 456))
-(junction (pt 784 440))
-(junction (pt 768 424))
-(junction (pt 752 408))
-(junction (pt 736 392))
-(junction (pt 720 376))
-(junction (pt 704 360))
-(junction (pt 816 704))
-(junction (pt 800 688))
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-(junction (pt 768 656))
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-(junction (pt 720 608))
-(junction (pt 704 592))
-(junction (pt 288 32))
-(junction (pt 288 -32))
-(junction (pt 288 -96))
-(junction (pt 840 560))
-(junction (pt 840 328))
-(junction (pt 840 96))
 (junction (pt 1088 792))
 (junction (pt 1096 808))
 (junction (pt 1104 824))
@@ -3418,3 +3332,36 @@ applicable agreement for further details.
 (junction (pt 1320 176))
 (junction (pt 1328 192))
 (junction (pt 1336 208))
+(junction (pt 952 96))
+(junction (pt 952 328))
+(junction (pt 952 560))
+(junction (pt 816 128))
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+(junction (pt 864 640))
+(junction (pt 880 656))
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+(junction (pt 912 688))
+(junction (pt 928 704))
+(junction (pt 816 360))
+(junction (pt 832 376))
+(junction (pt 848 392))
+(junction (pt 864 408))
+(junction (pt 880 424))
+(junction (pt 896 440))
+(junction (pt 912 456))
+(junction (pt 928 472))
+(junction (pt 512 176))
+(junction (pt 512 240))
+(junction (pt 512 192))
+(junction (pt 512 256))
+(junction (pt 512 320))
+(junction (pt 512 304))
diff --git a/machine_alpha/shifter_8b.bdf b/machine_alpha/shifter_8b.bdf
index 3713a64..eafdc3a 100644
--- a/machine_alpha/shifter_8b.bdf
+++ b/machine_alpha/shifter_8b.bdf
@@ -22,7 +22,7 @@ applicable agreement for further details.
 (header "graphic" (version "1.3"))
 (pin
 	(input)
-	(rect 40 408 208 424)
+	(rect 72 408 240 424)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "A0" (rect 9 0 21 12)(font "Arial" ))
 	(pt 168 8)
@@ -39,7 +39,7 @@ applicable agreement for further details.
 )
 (pin
 	(input)
-	(rect 40 360 208 376)
+	(rect 72 360 240 376)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "A1" (rect 9 0 21 12)(font "Arial" ))
 	(pt 168 8)
@@ -56,7 +56,7 @@ applicable agreement for further details.
 )
 (pin
 	(input)
-	(rect 40 312 208 328)
+	(rect 72 312 240 328)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "A2" (rect 9 0 21 12)(font "Arial" ))
 	(pt 168 8)
@@ -73,7 +73,7 @@ applicable agreement for further details.
 )
 (pin
 	(input)
-	(rect 40 264 208 280)
+	(rect 72 264 240 280)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "A3" (rect 9 0 21 12)(font "Arial" ))
 	(pt 168 8)
@@ -90,7 +90,7 @@ applicable agreement for further details.
 )
 (pin
 	(input)
-	(rect 40 216 208 232)
+	(rect 72 216 240 232)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "A4" (rect 9 0 21 12)(font "Arial" ))
 	(pt 168 8)
@@ -107,7 +107,7 @@ applicable agreement for further details.
 )
 (pin
 	(input)
-	(rect 40 456 208 472)
+	(rect 72 456 240 472)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "LM" (rect 9 0 23 12)(font "Arial" ))
 	(pt 168 8)
@@ -124,7 +124,7 @@ applicable agreement for further details.
 )
 (pin
 	(input)
-	(rect 40 504 208 520)
+	(rect 72 504 240 520)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "DM" (rect 9 0 25 12)(font "Arial" ))
 	(pt 168 8)
@@ -141,7 +141,7 @@ applicable agreement for further details.
 )
 (pin
 	(input)
-	(rect 40 552 208 568)
+	(rect 72 552 240 568)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "RM" (rect 9 0 25 12)(font "Arial" ))
 	(pt 168 8)
@@ -158,7 +158,7 @@ applicable agreement for further details.
 )
 (pin
 	(input)
-	(rect 40 168 208 184)
+	(rect 72 168 240 184)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "A5" (rect 9 0 21 12)(font "Arial" ))
 	(pt 168 8)
@@ -175,7 +175,7 @@ applicable agreement for further details.
 )
 (pin
 	(input)
-	(rect 40 120 208 136)
+	(rect 72 120 240 136)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "A6" (rect 9 0 21 12)(font "Arial" ))
 	(pt 168 8)
@@ -192,7 +192,7 @@ applicable agreement for further details.
 )
 (pin
 	(input)
-	(rect 40 72 208 88)
+	(rect 72 72 240 88)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "A7" (rect 9 0 21 12)(font "Arial" ))
 	(pt 168 8)
@@ -209,7 +209,7 @@ applicable agreement for further details.
 )
 (pin
 	(input)
-	(rect 40 600 208 616)
+	(rect 72 600 240 616)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "R_in" (rect 5 0 27 12)(font "Arial" ))
 	(pt 168 8)
@@ -226,7 +226,7 @@ applicable agreement for further details.
 )
 (pin
 	(input)
-	(rect 40 648 208 664)
+	(rect 72 648 240 664)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "L_in" (rect 5 0 25 12)(font "Arial" ))
 	(pt 168 8)
@@ -780,86 +780,30 @@ applicable agreement for further details.
 	(pt 488 352)
 	(pt 472 352)
 )
-(connector
-	(pt 208 416)
-	(pt 472 416)
-)
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-	(pt 472 416)
-	(pt 488 416)
-)
 (connector
 	(pt 488 304)
 	(pt 456 304)
 )
-(connector
-	(pt 456 368)
-	(pt 488 368)
-)
 (connector
 	(pt 488 256)
 	(pt 440 256)
 )
-(connector
-	(pt 440 320)
-	(pt 488 320)
-)
 (connector
 	(pt 488 208)
 	(pt 424 208)
 )
-(connector
-	(pt 424 272)
-	(pt 488 272)
-)
-(connector
-	(pt 208 272)
-	(pt 424 272)
-)
-(connector
-	(pt 208 320)
-	(pt 440 320)
-)
-(connector
-	(pt 208 368)
-	(pt 456 368)
-)
 (connector
 	(pt 488 160)
 	(pt 408 160)
 )
-(connector
-	(pt 208 224)
-	(pt 408 224)
-)
-(connector
-	(pt 408 224)
-	(pt 488 224)
-)
 (connector
 	(pt 488 112)
 	(pt 392 112)
 )
-(connector
-	(pt 208 176)
-	(pt 392 176)
-)
-(connector
-	(pt 392 176)
-	(pt 488 176)
-)
 (connector
 	(pt 488 64)
 	(pt 376 64)
 )
-(connector
-	(pt 208 128)
-	(pt 376 128)
-)
-(connector
-	(pt 376 128)
-	(pt 488 128)
-)
 (connector
 	(pt 456 432)
 	(pt 488 432)
@@ -936,14 +880,6 @@ applicable agreement for further details.
 	(pt 488 144)
 	(pt 360 144)
 )
-(connector
-	(pt 208 80)
-	(pt 360 80)
-)
-(connector
-	(pt 360 80)
-	(pt 488 80)
-)
 (connector
 	(pt 488 480)
 	(pt 288 480)
@@ -952,34 +888,10 @@ applicable agreement for further details.
 	(pt 488 464)
 	(pt 272 464)
 )
-(connector
-	(pt 272 464)
-	(pt 272 512)
-)
-(connector
-	(pt 272 512)
-	(pt 208 512)
-)
-(connector
-	(pt 256 448)
-	(pt 256 464)
-)
-(connector
-	(pt 256 464)
-	(pt 208 464)
-)
 (connector
 	(pt 288 480)
 	(pt 288 560)
 )
-(connector
-	(pt 208 656)
-	(pt 304 656)
-)
-(connector
-	(pt 304 96)
-	(pt 304 656)
-)
 (connector
 	(pt 304 96)
 	(pt 488 96)
@@ -988,14 +900,6 @@ applicable agreement for further details.
 	(pt 488 400)
 	(pt 320 400)
 )
-(connector
-	(pt 320 608)
-	(pt 320 400)
-)
-(connector
-	(pt 208 608)
-	(pt 320 608)
-)
 (connector
 	(pt 472 352)
 	(pt 472 416)
@@ -1004,14 +908,6 @@ applicable agreement for further details.
 	(pt 472 416)
 	(pt 472 544)
 )
-(connector
-	(pt 208 560)
-	(pt 288 560)
-)
-(connector
-	(pt 288 560)
-	(pt 488 560)
-)
 (connector
 	(pt 472 544)
 	(pt 488 544)
@@ -1064,6 +960,110 @@ applicable agreement for further details.
 	(pt 648 560)
 	(pt 688 560)
 )
+(connector
+	(pt 272 464)
+	(pt 272 512)
+)
+(connector
+	(pt 272 512)
+	(pt 240 512)
+)
+(connector
+	(pt 256 448)
+	(pt 256 464)
+)
+(connector
+	(pt 256 464)
+	(pt 240 464)
+)
+(connector
+	(pt 304 656)
+	(pt 240 656)
+)
+(connector
+	(pt 304 96)
+	(pt 304 656)
+)
+(connector
+	(pt 320 400)
+	(pt 320 608)
+)
+(connector
+	(pt 320 608)
+	(pt 240 608)
+)
+(connector
+	(pt 240 80)
+	(pt 360 80)
+)
+(connector
+	(pt 360 80)
+	(pt 488 80)
+)
+(connector
+	(pt 240 128)
+	(pt 376 128)
+)
+(connector
+	(pt 376 128)
+	(pt 488 128)
+)
+(connector
+	(pt 240 176)
+	(pt 392 176)
+)
+(connector
+	(pt 392 176)
+	(pt 488 176)
+)
+(connector
+	(pt 240 224)
+	(pt 408 224)
+)
+(connector
+	(pt 408 224)
+	(pt 488 224)
+)
+(connector
+	(pt 240 272)
+	(pt 424 272)
+)
+(connector
+	(pt 424 272)
+	(pt 488 272)
+)
+(connector
+	(pt 240 320)
+	(pt 440 320)
+)
+(connector
+	(pt 440 320)
+	(pt 488 320)
+)
+(connector
+	(pt 240 368)
+	(pt 456 368)
+)
+(connector
+	(pt 456 368)
+	(pt 488 368)
+)
+(connector
+	(pt 240 416)
+	(pt 472 416)
+)
+(connector
+	(pt 472 416)
+	(pt 488 416)
+)
+(connector
+	(pt 240 560)
+	(pt 288 560)
+)
+(connector
+	(pt 288 560)
+	(pt 488 560)
+)
 (junction (pt 472 416))
 (junction (pt 456 368))
 (junction (pt 440 320))