diff --git a/1ano/2semestre/lsd/pratica03/ALUDemo/ALUDemo.bdf b/1ano/2semestre/lsd/pratica03/ALUDemo/ALUDemo.bdf
index 8789a97..c84eb4a 100644
--- a/1ano/2semestre/lsd/pratica03/ALUDemo/ALUDemo.bdf
+++ b/1ano/2semestre/lsd/pratica03/ALUDemo/ALUDemo.bdf
@@ -20,28 +20,11 @@ refer to the applicable agreement for further details, at
 https://fpgasoftware.intel.com/eula.
 */
 (header "graphic" (version "1.4"))
-(pin
-	(input)
-	(rect 272 144 440 160)
-	(text "INPUT" (rect 125 0 154 10)(font "Arial" (font_size 6)))
-	(text "SW[7..4]" (rect 5 0 47 11)(font "Arial" ))
-	(pt 168 8)
-	(drawing
-		(line (pt 84 12)(pt 109 12))
-		(line (pt 84 4)(pt 109 4))
-		(line (pt 113 8)(pt 168 8))
-		(line (pt 84 12)(pt 84 4))
-		(line (pt 109 4)(pt 113 8))
-		(line (pt 109 12)(pt 113 8))
-	)
-	(text "VCC" (rect 128 7 149 17)(font "Arial" (font_size 6)))
-	(annotation_block (location)(rect 208 160 272 176))
-)
 (pin
 	(input)
 	(rect 272 160 440 176)
 	(text "INPUT" (rect 125 0 154 10)(font "Arial" (font_size 6)))
-	(text "SW[3..0]" (rect 5 0 48 13)(font "Intel Clear" ))
+	(text "SW[5..0]" (rect 5 0 48 13)(font "Intel Clear" ))
 	(pt 168 8)
 	(drawing
 		(line (pt 84 12)(pt 109 12))
@@ -54,11 +37,28 @@ https://fpgasoftware.intel.com/eula.
 	(text "VCC" (rect 128 7 149 17)(font "Arial" (font_size 6)))
 	(annotation_block (location)(rect 208 176 272 192))
 )
+(pin
+	(input)
+	(rect 272 144 440 160)
+	(text "INPUT" (rect 125 0 154 10)(font "Arial" (font_size 6)))
+	(text "SW[11..6]" (rect 5 0 54 11)(font "Arial" ))
+	(pt 168 8)
+	(drawing
+		(line (pt 84 12)(pt 109 12))
+		(line (pt 84 4)(pt 109 4))
+		(line (pt 113 8)(pt 168 8))
+		(line (pt 84 12)(pt 84 4))
+		(line (pt 109 4)(pt 113 8))
+		(line (pt 109 12)(pt 113 8))
+	)
+	(text "VCC" (rect 128 7 149 17)(font "Arial" (font_size 6)))
+	(annotation_block (location)(rect 208 160 272 176))
+)
 (pin
 	(input)
 	(rect 272 176 440 192)
 	(text "INPUT" (rect 125 0 154 10)(font "Arial" (font_size 6)))
-	(text "SW[10..8]" (rect 5 0 54 11)(font "Arial" ))
+	(text "SW[14..12]" (rect 5 0 61 11)(font "Arial" ))
 	(pt 168 8)
 	(drawing
 		(line (pt 84 12)(pt 109 12))
@@ -73,9 +73,9 @@ https://fpgasoftware.intel.com/eula.
 )
 (pin
 	(output)
-	(rect 616 144 792 160)
+	(rect 624 160 800 176)
 	(text "OUTPUT" (rect 1 0 41 10)(font "Arial" (font_size 6)))
-	(text "LEDR[3..0]" (rect 90 0 144 11)(font "Arial" ))
+	(text "LEDR[11..6]" (rect 90 0 150 13)(font "Intel Clear" ))
 	(pt 0 8)
 	(drawing
 		(line (pt 0 8)(pt 52 8))
@@ -86,13 +86,13 @@ https://fpgasoftware.intel.com/eula.
 		(line (pt 82 8)(pt 78 12))
 		(line (pt 78 12)(pt 82 8))
 	)
-	(annotation_block (location)(rect 792 160 856 176))
+	(annotation_block (location)(rect 800 176 856 192))
 )
 (pin
 	(output)
-	(rect 616 160 792 176)
+	(rect 624 144 800 160)
 	(text "OUTPUT" (rect 1 0 41 10)(font "Arial" (font_size 6)))
-	(text "LEDR[7..4]" (rect 90 0 143 13)(font "Intel Clear" ))
+	(text "LEDR[5..0]" (rect 90 0 144 11)(font "Arial" ))
 	(pt 0 8)
 	(drawing
 		(line (pt 0 8)(pt 52 8))
@@ -103,24 +103,24 @@ https://fpgasoftware.intel.com/eula.
 		(line (pt 82 8)(pt 78 12))
 		(line (pt 78 12)(pt 82 8))
 	)
-	(annotation_block (location)(rect 792 176 848 192))
+	(annotation_block (location)(rect 800 160 864 176))
 )
 (symbol
-	(rect 448 120 608 232)
-	(text "ALU4" (rect 5 0 34 11)(font "Arial" ))
+	(rect 448 120 616 232)
+	(text "ALUN" (rect 5 0 34 11)(font "Arial" ))
 	(text "inst" (rect 8 96 26 107)(font "Arial" ))
 	(port
 		(pt 0 32)
 		(input)
-		(text "a[3..0]" (rect 0 0 30 11)(font "Arial" ))
-		(text "a[3..0]" (rect 21 27 51 38)(font "Arial" ))
+		(text "a[n-1..0]" (rect 0 0 41 11)(font "Arial" ))
+		(text "a[n-1..0]" (rect 21 27 62 38)(font "Arial" ))
 		(line (pt 0 32)(pt 16 32)(line_width 3))
 	)
 	(port
 		(pt 0 48)
 		(input)
-		(text "b[3..0]" (rect 0 0 30 11)(font "Arial" ))
-		(text "b[3..0]" (rect 21 43 51 54)(font "Arial" ))
+		(text "b[n-1..0]" (rect 0 0 41 11)(font "Arial" ))
+		(text "b[n-1..0]" (rect 21 43 62 54)(font "Arial" ))
 		(line (pt 0 48)(pt 16 48)(line_width 3))
 	)
 	(port
@@ -131,22 +131,28 @@ https://fpgasoftware.intel.com/eula.
 		(line (pt 0 64)(pt 16 64)(line_width 3))
 	)
 	(port
-		(pt 160 32)
+		(pt 168 32)
 		(output)
-		(text "r[3..0]" (rect 0 0 28 11)(font "Arial" ))
-		(text "r[3..0]" (rect 116 27 144 38)(font "Arial" ))
-		(line (pt 160 32)(pt 144 32)(line_width 3))
+		(text "r[n-1..0]" (rect 0 0 38 11)(font "Arial" ))
+		(text "r[n-1..0]" (rect 115 27 153 38)(font "Arial" ))
+		(line (pt 168 32)(pt 152 32)(line_width 3))
 	)
 	(port
-		(pt 160 48)
+		(pt 168 48)
 		(output)
-		(text "m[3..0]" (rect 0 0 34 11)(font "Arial" ))
-		(text "m[3..0]" (rect 111 43 145 54)(font "Arial" ))
-		(line (pt 160 48)(pt 144 48)(line_width 3))
+		(text "m[n-1..0]" (rect 0 0 43 11)(font "Arial" ))
+		(text "m[n-1..0]" (rect 111 43 154 54)(font "Arial" ))
+		(line (pt 168 48)(pt 152 48)(line_width 3))
 	)
+	(parameter
+		"N"
+		"6"
+		""
+		(type "PARAMETER_SIGNED_DEC")	)
 	(drawing
-		(rectangle (rect 16 16 144 96))
+		(rectangle (rect 16 16 152 96))
 	)
+	(annotation_block (parameter)(rect 616 88 787 118))
 )
 (connector
 	(pt 448 152)
@@ -164,12 +170,12 @@ https://fpgasoftware.intel.com/eula.
 	(bus)
 )
 (connector
-	(pt 608 152)
 	(pt 616 152)
+	(pt 624 152)
 	(bus)
 )
 (connector
-	(pt 608 168)
 	(pt 616 168)
+	(pt 624 168)
 	(bus)
 )
diff --git a/1ano/2semestre/lsd/pratica03/ALUDemo/ALUN.bsf b/1ano/2semestre/lsd/pratica03/ALUDemo/ALUN.bsf
new file mode 100644
index 0000000..1bf1ca4
--- /dev/null
+++ b/1ano/2semestre/lsd/pratica03/ALUDemo/ALUN.bsf
@@ -0,0 +1,71 @@
+/*
+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) 2020  Intel Corporation. All rights reserved.
+Your use of Intel Corporation's design tools, logic functions 
+and other software and tools, and any 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 Intel Program License 
+Subscription Agreement, the Intel Quartus Prime License Agreement,
+the Intel FPGA IP License Agreement, or other applicable license
+agreement, including, without limitation, that your use is for
+the sole purpose of programming logic devices manufactured by
+Intel and sold by Intel or its authorized distributors.  Please
+refer to the applicable agreement for further details, at
+https://fpgasoftware.intel.com/eula.
+*/
+(header "symbol" (version "1.1"))
+(symbol
+	(rect 16 16 184 128)
+	(text "ALUN" (rect 5 0 33 12)(font "Arial" ))
+	(text "inst" (rect 8 96 20 108)(font "Arial" ))
+	(port
+		(pt 0 32)
+		(input)
+		(text "a[n-1..0]" (rect 0 0 30 12)(font "Arial" ))
+		(text "a[n-1..0]" (rect 21 27 51 39)(font "Arial" ))
+		(line (pt 0 32)(pt 16 32)(line_width 3))
+	)
+	(port
+		(pt 0 48)
+		(input)
+		(text "b[n-1..0]" (rect 0 0 30 12)(font "Arial" ))
+		(text "b[n-1..0]" (rect 21 43 51 55)(font "Arial" ))
+		(line (pt 0 48)(pt 16 48)(line_width 3))
+	)
+	(port
+		(pt 0 64)
+		(input)
+		(text "op[2..0]" (rect 0 0 29 12)(font "Arial" ))
+		(text "op[2..0]" (rect 21 59 50 71)(font "Arial" ))
+		(line (pt 0 64)(pt 16 64)(line_width 3))
+	)
+	(port
+		(pt 168 32)
+		(output)
+		(text "r[n-1..0]" (rect 0 0 29 12)(font "Arial" ))
+		(text "r[n-1..0]" (rect 118 27 147 39)(font "Arial" ))
+		(line (pt 168 32)(pt 152 32)(line_width 3))
+	)
+	(port
+		(pt 168 48)
+		(output)
+		(text "m[n-1..0]" (rect 0 0 34 12)(font "Arial" ))
+		(text "m[n-1..0]" (rect 113 43 147 55)(font "Arial" ))
+		(line (pt 168 48)(pt 152 48)(line_width 3))
+	)
+	(parameter
+		"N"
+		"8"
+		""
+		(type "PARAMETER_SIGNED_DEC")	)
+	(drawing
+		(rectangle (rect 16 16 152 96)(line_width 1))
+	)
+	(annotation_block (parameter)(rect 184 -64 284 16))
+)
diff --git a/1ano/2semestre/lsd/pratica03/ALUDemo/ALUN.vhd b/1ano/2semestre/lsd/pratica03/ALUDemo/ALUN.vhd
new file mode 100644
index 0000000..8f0ad4a
--- /dev/null
+++ b/1ano/2semestre/lsd/pratica03/ALUDemo/ALUN.vhd
@@ -0,0 +1,36 @@
+library IEEE;
+use IEEE.STD_LOGIC_1164.all;
+use IEEE.NUMERIC_STD.all;
+
+entity ALUN is
+	generic (N : positive := 8);
+	port
+	(
+		a,b  : in  std_logic_vector((N-1) downto 0);
+		op   : in  std_logic_vector(2 downto 0);
+		r, m : out std_logic_vector((N-1) downto 0)
+	);
+end ALUN;
+
+architecture Behavioral of ALUN is
+	signal s_a, s_b, s_r : unsigned((N-1) downto 0);
+	signal s_m           : unsigned(((N*2)-1) downto 0);
+begin
+	s_a <= unsigned(a);
+	s_b <= unsigned(b);
+	
+	s_m <= s_a * s_b;
+	
+	with op select
+		s_r <= s_a  +  s_b     when "000",
+				 s_a  -  s_b     when "001",
+				 s_m((N-1) downto 0) when "010",
+				 s_a  /  s_b     when "011",
+				 s_a rem s_b     when "100",
+				 s_a and s_b     when "101",
+				 s_a or  s_b     when "110",
+				 s_a xor s_b	  when "111";
+	
+	r <= std_logic_vector(s_r);
+	m <= std_logic_vector(s_m(((N*2)-1) downto N)) when (op = "010") else (others => '0');
+end Behavioral;
\ No newline at end of file
diff --git a/1ano/2semestre/lsd/pratica03/ALUDemo/output_files/ALUDemo.sof b/1ano/2semestre/lsd/pratica03/ALUDemo/output_files/ALUDemo.sof
index 446fe14..4c36467 100644
Binary files a/1ano/2semestre/lsd/pratica03/ALUDemo/output_files/ALUDemo.sof and b/1ano/2semestre/lsd/pratica03/ALUDemo/output_files/ALUDemo.sof differ