diff --git a/38_decoder/38_decoder.bsf b/38_decoder/38_decoder.bsf
new file mode 100644
index 0000000..942dc3a
--- /dev/null
+++ b/38_decoder/38_decoder.bsf
@@ -0,0 +1,106 @@
+/*
+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 16 112 208)
+	(text "38_decoder" (rect 5 0 73 14)(font "Arial" (font_size 8)))
+	(text "inst" (rect 8 176 25 188)(font "Arial" ))
+	(port
+		(pt 0 32)
+		(input)
+		(text "I2" (rect 0 0 9 14)(font "Arial" (font_size 8)))
+		(text "I2" (rect 21 27 30 41)(font "Arial" (font_size 8)))
+		(line (pt 0 32)(pt 16 32)(line_width 1))
+	)
+	(port
+		(pt 0 48)
+		(input)
+		(text "I1" (rect 0 0 9 14)(font "Arial" (font_size 8)))
+		(text "I1" (rect 21 43 30 57)(font "Arial" (font_size 8)))
+		(line (pt 0 48)(pt 16 48)(line_width 1))
+	)
+	(port
+		(pt 0 64)
+		(input)
+		(text "I0" (rect 0 0 9 14)(font "Arial" (font_size 8)))
+		(text "I0" (rect 21 59 30 73)(font "Arial" (font_size 8)))
+		(line (pt 0 64)(pt 16 64)(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 80 176)(line_width 1))
+	)
+)
diff --git a/38_decoder/38_decoder.qsf b/38_decoder/38_decoder.qsf
index bc0dcab..bba5a3d 100644
--- a/38_decoder/38_decoder.qsf
+++ b/38_decoder/38_decoder.qsf
@@ -65,4 +65,5 @@ set_location_assignment PIN_145 -to Y3
 set_location_assignment PIN_146 -to Y4
 set_location_assignment PIN_147 -to Y5
 set_location_assignment PIN_149 -to Y6
-set_location_assignment PIN_150 -to Y7
\ No newline at end of file
+set_location_assignment PIN_150 -to Y7
+set_global_assignment -name RESERVE_ALL_UNUSED_PINS_NO_OUTPUT_GND "AS INPUT TRI-STATED"
\ No newline at end of file
diff --git a/ALU_parallel_8b/ALU_parallel_8b.bdf b/ALU_parallel_8b/ALU_parallel_8b.bdf
index 4d050cf..22e41a7 100644
--- a/ALU_parallel_8b/ALU_parallel_8b.bdf
+++ b/ALU_parallel_8b/ALU_parallel_8b.bdf
@@ -292,58 +292,26 @@ applicable agreement for further details.
 	)
 	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
 )
+(pin
+	(input)
+	(rect 104 224 272 240)
+	(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 104 256 272 272)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
-	(text "S0" (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 104 272 272 288)
-	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
-	(text "S1" (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 104 288 272 304)
-	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
-	(text "S2" (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 104 304 272 320)
-	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
 	(text "S3" (rect 5 0 17 12)(font "Arial" ))
 	(pt 168 8)
 	(drawing
@@ -358,9 +326,41 @@ applicable agreement for further details.
 )
 (pin
 	(input)
-	(rect 104 224 272 240)
+	(rect 104 272 272 288)
 	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
-	(text "C0" (rect 5 0 19 12)(font "Arial" ))
+	(text "S2" (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 104 288 272 304)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "S1" (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 104 304 272 320)
+	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
+	(text "S0" (rect 5 0 17 12)(font "Arial" ))
 	(pt 168 8)
 	(drawing
 		(line (pt 92 12)(pt 117 12)(line_width 1))
diff --git a/ALU_parallel_8b/ALU_parallel_8b.bsf b/ALU_parallel_8b/ALU_parallel_8b.bsf
new file mode 100644
index 0000000..d69bf7c
--- /dev/null
+++ b/ALU_parallel_8b/ALU_parallel_8b.bsf
@@ -0,0 +1,246 @@
+/*
+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 16 112 432)
+	(text "ALU_parallel_8b" (rect 5 0 98 14)(font "Arial" (font_size 8)))
+	(text "inst" (rect 8 400 25 412)(font "Arial" ))
+	(port
+		(pt 0 32)
+		(input)
+		(text "A0" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A0" (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 "B0" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B0" (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 "A1" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A1" (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 "B1" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B1" (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 "A2" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A2" (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 "B2" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B2" (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 "A3" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A3" (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 "B3" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B3" (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 "C0" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "C0" (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 "M" (rect 0 0 9 14)(font "Arial" (font_size 8)))
+		(text "M" (rect 21 171 30 185)(font "Arial" (font_size 8)))
+		(line (pt 0 176)(pt 16 176)(line_width 1))
+	)
+	(port
+		(pt 0 192)
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+	)
+	(port
+		(pt 0 208)
+		(input)
+		(text "S2" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "S2" (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 "S1" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "S1" (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 "S0" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "S0" (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 "A4" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A4" (rect 21 251 37 265)(font "Arial" (font_size 8)))
+		(line (pt 0 256)(pt 16 256)(line_width 1))
+	)
+	(port
+		(pt 0 272)
+		(input)
+		(text "B4" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B4" (rect 21 267 36 281)(font "Arial" (font_size 8)))
+		(line (pt 0 272)(pt 16 272)(line_width 1))
+	)
+	(port
+		(pt 0 288)
+		(input)
+		(text "A5" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A5" (rect 21 283 37 297)(font "Arial" (font_size 8)))
+		(line (pt 0 288)(pt 16 288)(line_width 1))
+	)
+	(port
+		(pt 0 304)
+		(input)
+		(text "B5" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B5" (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 "A6" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A6" (rect 21 315 37 329)(font "Arial" (font_size 8)))
+		(line (pt 0 320)(pt 16 320)(line_width 1))
+	)
+	(port
+		(pt 0 336)
+		(input)
+		(text "B6" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B6" (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 "A7" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A7" (rect 21 347 37 361)(font "Arial" (font_size 8)))
+		(line (pt 0 352)(pt 16 352)(line_width 1))
+	)
+	(port
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+		(input)
+		(text "B7" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B7" (rect 21 363 36 377)(font "Arial" (font_size 8)))
+		(line (pt 0 368)(pt 16 368)(line_width 1))
+	)
+	(port
+		(pt 96 32)
+		(output)
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+		(text "F0" (rect 61 27 75 41)(font "Arial" (font_size 8)))
+		(line (pt 96 32)(pt 80 32)(line_width 1))
+	)
+	(port
+		(pt 96 48)
+		(output)
+		(text "F1" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "F1" (rect 61 43 75 57)(font "Arial" (font_size 8)))
+		(line (pt 96 48)(pt 80 48)(line_width 1))
+	)
+	(port
+		(pt 96 64)
+		(output)
+		(text "F2" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "F2" (rect 61 59 75 73)(font "Arial" (font_size 8)))
+		(line (pt 96 64)(pt 80 64)(line_width 1))
+	)
+	(port
+		(pt 96 80)
+		(output)
+		(text "F3" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "F3" (rect 61 75 75 89)(font "Arial" (font_size 8)))
+		(line (pt 96 80)(pt 80 80)(line_width 1))
+	)
+	(port
+		(pt 96 96)
+		(output)
+		(text "C8" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "C8" (rect 60 91 75 105)(font "Arial" (font_size 8)))
+		(line (pt 96 96)(pt 80 96)(line_width 1))
+	)
+	(port
+		(pt 96 112)
+		(output)
+		(text "F4" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "F4" (rect 61 107 75 121)(font "Arial" (font_size 8)))
+		(line (pt 96 112)(pt 80 112)(line_width 1))
+	)
+	(port
+		(pt 96 128)
+		(output)
+		(text "F5" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "F5" (rect 61 123 75 137)(font "Arial" (font_size 8)))
+		(line (pt 96 128)(pt 80 128)(line_width 1))
+	)
+	(port
+		(pt 96 144)
+		(output)
+		(text "F6" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "F6" (rect 61 139 75 153)(font "Arial" (font_size 8)))
+		(line (pt 96 144)(pt 80 144)(line_width 1))
+	)
+	(port
+		(pt 96 160)
+		(output)
+		(text "F7" (rect 0 0 14 14)(font "Arial" (font_size 8)))
+		(text "F7" (rect 61 155 75 169)(font "Arial" (font_size 8)))
+		(line (pt 96 160)(pt 80 160)(line_width 1))
+	)
+	(drawing
+		(rectangle (rect 16 16 80 400)(line_width 1))
+	)
+)
diff --git a/ALU_parallel_8b/adder_parallel_8b.dpf b/ALU_parallel_8b/adder_parallel_8b.dpf
new file mode 100644
index 0000000..abe19d9
--- /dev/null
+++ b/ALU_parallel_8b/adder_parallel_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/ALU_parallel_8b/adder_parallel_8b.qsf b/ALU_parallel_8b/adder_parallel_8b.qsf
index fb75b66..7ef076f 100644
--- a/ALU_parallel_8b/adder_parallel_8b.qsf
+++ b/ALU_parallel_8b/adder_parallel_8b.qsf
@@ -36,12 +36,52 @@
 # -------------------------------------------------------------------------- #
 
 
-set_global_assignment -name FAMILY "Stratix II"
-set_global_assignment -name DEVICE AUTO
+set_global_assignment -name FAMILY "Cyclone II"
+set_global_assignment -name DEVICE EP2C8Q208C8
 set_global_assignment -name TOP_LEVEL_ENTITY ALU_parallel_8b
 set_global_assignment -name ORIGINAL_QUARTUS_VERSION "9.0 SP2"
 set_global_assignment -name PROJECT_CREATION_TIME_DATE "21:45:13  MARCH 09, 2022"
 set_global_assignment -name LAST_QUARTUS_VERSION "9.0 SP2"
 set_global_assignment -name BDF_FILE ALU_parallel_8b.bdf
-set_global_assignment -name USE_CONFIGURATION_DEVICE ON
-set_global_assignment -name RESERVE_ALL_UNUSED_PINS "AS INPUT TRI-STATED"
\ No newline at end of file
+set_global_assignment -name RESERVE_ALL_UNUSED_PINS "AS INPUT TRI-STATED"
+set_global_assignment -name MIN_CORE_JUNCTION_TEMP 0
+set_global_assignment -name MAX_CORE_JUNCTION_TEMP 85
+set_global_assignment -name MISC_FILE "D:/projects/quartus/ALU_parallel_8b/adder_parallel_8b.dpf"
+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 STRATIX_DEVICE_IO_STANDARD "3.3-V LVTTL"
+set_location_assignment PIN_77 -to A0
+set_location_assignment PIN_80 -to A1
+set_location_assignment PIN_81 -to A2
+set_location_assignment PIN_82 -to A3
+set_location_assignment PIN_84 -to A4
+set_location_assignment PIN_86 -to A5
+set_location_assignment PIN_87 -to A6
+set_location_assignment PIN_88 -to A7
+set_location_assignment PIN_67 -to B0
+set_location_assignment PIN_68 -to B1
+set_location_assignment PIN_69 -to B2
+set_location_assignment PIN_70 -to B3
+set_location_assignment PIN_72 -to B4
+set_location_assignment PIN_74 -to B5
+set_location_assignment PIN_75 -to B6
+set_location_assignment PIN_76 -to B7
+set_location_assignment PIN_129 -to C0
+set_location_assignment PIN_151 -to C8
+set_location_assignment PIN_142 -to F0
+set_location_assignment PIN_143 -to F1
+set_location_assignment PIN_144 -to F2
+set_location_assignment PIN_145 -to F3
+set_location_assignment PIN_146 -to F4
+set_location_assignment PIN_147 -to F5
+set_location_assignment PIN_149 -to F6
+set_location_assignment PIN_150 -to F7
+set_location_assignment PIN_208 -to M
+set_location_assignment PIN_23 -to S0
+set_location_assignment PIN_24 -to S1
+set_location_assignment PIN_27 -to S2
+set_location_assignment PIN_28 -to S3
+set_global_assignment -name RESERVE_ALL_UNUSED_PINS_NO_OUTPUT_GND "AS INPUT TRI-STATED"
\ No newline at end of file
diff --git a/README.md b/README.md
index a531c07..5089796 100644
--- a/README.md
+++ b/README.md
@@ -68,3 +68,17 @@ K10: LM
 LR0~LR7: Y0~Y7
 ```
 
+### ALU_parallel_8b
+
+八位并行超前进位运算器。
+
+```
+K0~K7: A0~A7
+K8~K15: B0~B7
+K16~K19: S0~S3
+K20: M
+K21: C0
+LR0~LR7: F0~F7
+LR8: C8
+```
+
diff --git a/adder_8b/adder_8b.bsf b/adder_8b/adder_8b.bsf
new file mode 100644
index 0000000..bc579e4
--- /dev/null
+++ b/adder_8b/adder_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 16 16 112 336)
+	(text "adder_8b" (rect 5 0 59 14)(font "Arial" (font_size 8)))
+	(text "inst" (rect 8 304 25 316)(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 "B7" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B7" (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 "A6" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A6" (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 "B6" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B6" (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 "A5" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A5" (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 "B5" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B5" (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 "A4" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A4" (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 "B4" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B4" (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 "A3" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A3" (rect 21 155 37 169)(font "Arial" (font_size 8)))
+		(line (pt 0 160)(pt 16 160)(line_width 1))
+	)
+	(port
+		(pt 0 176)
+		(input)
+		(text "B3" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B3" (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 "A2" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A2" (rect 21 187 37 201)(font "Arial" (font_size 8)))
+		(line (pt 0 192)(pt 16 192)(line_width 1))
+	)
+	(port
+		(pt 0 208)
+		(input)
+		(text "B2" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B2" (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 "A1" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A1" (rect 21 219 37 233)(font "Arial" (font_size 8)))
+		(line (pt 0 224)(pt 16 224)(line_width 1))
+	)
+	(port
+		(pt 0 240)
+		(input)
+		(text "B1" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "B1" (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 "A0" (rect 0 0 16 14)(font "Arial" (font_size 8)))
+		(text "A0" (rect 21 251 37 265)(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 0 288)
+		(input)
+		(text "CI" (rect 0 0 10 14)(font "Arial" (font_size 8)))
+		(text "CI" (rect 21 283 31 297)(font "Arial" (font_size 8)))
+		(line (pt 0 288)(pt 16 288)(line_width 1))
+	)
+	(port
+		(pt 96 32)
+		(output)
+		(text "CO" (rect 0 0 17 14)(font "Arial" (font_size 8)))
+		(text "CO" (rect 58 27 75 41)(font "Arial" (font_size 8)))
+		(line (pt 96 32)(pt 80 32)(line_width 1))
+	)
+	(port
+		(pt 96 48)
+		(output)
+		(text "S7" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "S7" (rect 60 43 75 57)(font "Arial" (font_size 8)))
+		(line (pt 96 48)(pt 80 48)(line_width 1))
+	)
+	(port
+		(pt 96 64)
+		(output)
+		(text "S6" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "S6" (rect 60 59 75 73)(font "Arial" (font_size 8)))
+		(line (pt 96 64)(pt 80 64)(line_width 1))
+	)
+	(port
+		(pt 96 80)
+		(output)
+		(text "S5" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "S5" (rect 60 75 75 89)(font "Arial" (font_size 8)))
+		(line (pt 96 80)(pt 80 80)(line_width 1))
+	)
+	(port
+		(pt 96 96)
+		(output)
+		(text "S4" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "S4" (rect 60 91 75 105)(font "Arial" (font_size 8)))
+		(line (pt 96 96)(pt 80 96)(line_width 1))
+	)
+	(port
+		(pt 96 112)
+		(output)
+		(text "S3" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "S3" (rect 60 107 75 121)(font "Arial" (font_size 8)))
+		(line (pt 96 112)(pt 80 112)(line_width 1))
+	)
+	(port
+		(pt 96 128)
+		(output)
+		(text "S2" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "S2" (rect 60 123 75 137)(font "Arial" (font_size 8)))
+		(line (pt 96 128)(pt 80 128)(line_width 1))
+	)
+	(port
+		(pt 96 144)
+		(output)
+		(text "S1" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "S1" (rect 60 139 75 153)(font "Arial" (font_size 8)))
+		(line (pt 96 144)(pt 80 144)(line_width 1))
+	)
+	(port
+		(pt 96 160)
+		(output)
+		(text "S0" (rect 0 0 15 14)(font "Arial" (font_size 8)))
+		(text "S0" (rect 60 155 75 169)(font "Arial" (font_size 8)))
+		(line (pt 96 160)(pt 80 160)(line_width 1))
+	)
+	(drawing
+		(rectangle (rect 16 16 80 304)(line_width 1))
+	)
+)
diff --git a/adder_8b/adder_8b.qsf b/adder_8b/adder_8b.qsf
index 360e6bc..7034422 100644
--- a/adder_8b/adder_8b.qsf
+++ b/adder_8b/adder_8b.qsf
@@ -80,4 +80,5 @@ set_location_assignment PIN_146 -to S4
 set_location_assignment PIN_147 -to S5
 set_location_assignment PIN_149 -to S6
 set_location_assignment PIN_150 -to S7
-set_location_assignment PIN_151 -to CO
\ No newline at end of file
+set_location_assignment PIN_151 -to CO
+set_global_assignment -name RESERVE_ALL_UNUSED_PINS_NO_OUTPUT_GND "AS INPUT TRI-STATED"
\ No newline at end of file
diff --git a/register_8b/register_8b.qsf b/register_8b/register_8b.qsf
index a8b14c3..de6d085 100644
--- a/register_8b/register_8b.qsf
+++ b/register_8b/register_8b.qsf
@@ -72,4 +72,5 @@ set_location_assignment PIN_149 -to Q6
 set_location_assignment PIN_150 -to Q7
 set_global_assignment -name MISC_FILE "D:/projects/quartus/register_8b/register_8b.dpf"
 set_global_assignment -name USE_CONFIGURATION_DEVICE ON
-set_global_assignment -name RESERVE_ALL_UNUSED_PINS "AS INPUT TRI-STATED"
\ No newline at end of file
+set_global_assignment -name RESERVE_ALL_UNUSED_PINS "AS INPUT TRI-STATED"
+set_global_assignment -name RESERVE_ALL_UNUSED_PINS_NO_OUTPUT_GND "AS INPUT TRI-STATED"
\ No newline at end of file