added v2.0

02_Boolean_Arithmetic/05_ALU/ALU_tb.gtkw

@@ -0,0 +1,48 @@
+[*]
+[*] GTKWave Analyzer v3.3.104 (w)1999-2020 BSI
+[*] Thu Dec 22 17:33:08 2022
+[*]
+[dumpfile] "/home/micha/gitlab/nand2tetris/02_Boolean_Arithmetic/05_ALU/ALU_tb.vcd"
+[dumpfile_mtime] "Thu Dec 22 17:32:45 2022"
+[dumpfile_size] 6961131
+[savefile] "/home/micha/gitlab/nand2tetris/02_Boolean_Arithmetic/05_ALU/ALU_tb.gtkw"
+[timestart] 0
+[size] 1920 963
+[pos] -1 -1
+*-1.000000 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
+[sst_width] 281
+[signals_width] 160
+[sst_expanded] 1
+[sst_vpaned_height] 258
+@200
+-IN
+@22
+ALU_tb.x[15:0]
+ALU_tb.y[15:0]
+@28
+ALU_tb.zx
+ALU_tb.nx
+ALU_tb.zy
+ALU_tb.ny
+ALU_tb.f
+ALU_tb.no
+@200
+-OUT
+@22
+ALU_tb.out[15:0]
+@28
+ALU_tb.zr
+ALU_tb.ng
+@200
+-CMP
+@22
+ALU_tb.out_cmp[15:0]
+@28
+ALU_tb.zr_cmp
+ALU_tb.ng_cmp
+@201
+-Test
+@28
+ALU_tb.fail
+[pattern_trace] 1
+[pattern_trace] 0

02_Boolean_Arithmetic/05_ALU/ALU_tb.v

@@ -0,0 +1,81 @@
+`default_nettype none
+module ALU_tb();
+
+	// IN,OUT
+	reg [15:0] x,y;
+	reg zx,nx,zy,ny,f,no;
+	wire [15:0] out;
+	wire zr,ng;
+
+	// Part	
+	ALU ALU(
+		.x(x),
+		.y(y),
+		.zx(zx),
+		.nx(nx),
+		.zy(zy),
+		.ny(ny),
+		.f(f),
+		.no(no),
+		.out(out),
+		.zr(zr),
+		.ng(ng)
+	);
+	
+	// Compare
+	wire [15:0] xx,yy,out_cmp;
+	wire zr_cmp,ng_cmp;
+	assign xx = nx?(zx?~0:~x):(zx?0:x);
+	assign yy = ny?(zy?~0:~y):(zy?0:y);
+	assign out_cmp= no?(f?~(xx+yy):~(xx&yy)):(f?(xx+yy):(xx&yy));
+	assign zr_cmp = (out==0);
+	assign ng_cmp = out[15];
+	
+	reg fail = 0;
+	reg [15:0] n = 0;
+	task check;
+		#1
+		if ((out != out_cmp) || (zr != zr_cmp) || (ng != ng_cmp)) 
+			begin
+				$display("FAIL: x=%16b, y=%16b, zx=%1b, nx=%1b, zy=%1b, ny=%1b, f=%1b, no=%1b, out=%16b, zr=%1b, ng=%1b",x,y,zx,nx,zy,ny,f,no,out,zr,ng);
+				fail=1;
+			end
+	endtask
+	  
+  	initial begin
+  		$dumpfile("ALU_tb.vcd");
+  		$dumpvars(0, ALU_tb);
+		
+		$display("------------------------");
+		$display("Testbench: ALU");
+		
+		for (n=0; n<100;n=n+1) 
+			begin
+				x=$random;
+				y=$random;
+				zx=1;nx=0;zy=1;ny=0;f=1;no=0;check();// 0
+				zx=1;nx=1;zy=1;ny=1;f=1;no=1;check();// 1
+				zx=1;nx=1;zy=1;ny=0;f=1;no=0;check();// -1
+				zx=0;nx=0;zy=1;ny=1;f=0;no=0;check();// x
+				zx=1;nx=1;zy=0;ny=0;f=0;no=0;check();// y
+				zx=0;nx=0;zy=1;ny=1;f=0;no=1;check();// !x
+				zx=1;nx=1;zy=0;ny=0;f=0;no=1;check();// !y
+				zx=0;nx=0;zy=1;ny=1;f=1;no=1;check();// -x
+				zx=1;nx=1;zy=0;ny=0;f=1;no=1;check();// -y
+				zx=0;nx=1;zy=1;ny=1;f=1;no=1;check();// x+1
+				zx=1;nx=1;zy=0;ny=1;f=1;no=1;check();// y+1
+				zx=0;nx=0;zy=1;ny=1;f=1;no=0;check();// x-1
+				zx=1;nx=1;zy=0;ny=0;f=1;no=0;check();// y-1
+				zx=0;nx=0;zy=0;ny=0;f=1;no=0;check();// x+y
+				zx=0;nx=1;zy=0;ny=0;f=1;no=1;check();// x-y
+				zx=0;nx=0;zy=0;ny=1;f=1;no=1;check();// y-x
+				zx=0;nx=0;zy=0;ny=0;f=0;no=0;check();// x&y
+				zx=0;nx=1;zy=0;ny=1;f=0;no=1;check();// x|y
+			end
+		
+		if (fail==0) $display("passed");
+		$display("------------------------");
+		$finish;
+	end
+
+endmodule

02_Boolean_Arithmetic/05_ALU/Include.v

@@ -0,0 +1,24 @@
+`include "../../01_Boolean_Logic/Nand.v"
+`include "../../01_Boolean_Logic/Not.v"
+`include "../../01_Boolean_Logic/Buffer.v"
+`include "../../01_Boolean_Logic/And.v"
+`include "../../01_Boolean_Logic/Or.v"
+`include "../../01_Boolean_Logic/Xor.v"
+`include "../../01_Boolean_Logic/Mux.v"
+`include "../../01_Boolean_Logic/DMux.v"
+`include "../../01_Boolean_Logic/Not16.v"
+`include "../../01_Boolean_Logic/And16.v"
+`include "../../01_Boolean_Logic/Or16.v"
+`include "../../01_Boolean_Logic/Mux16.v"
+`include "../../01_Boolean_Logic/Or8Way.v"
+`include "../../01_Boolean_Logic/Mux4Way16.v"
+`include "../../01_Boolean_Logic/Mux8Way16.v"
+`include "../../01_Boolean_Logic/DMux4Way.v"
+`include "../../01_Boolean_Logic/DMux8Way.v"
+
+`include "../../02_Boolean_Arithmetic/HalfAdder.v"
+`include "../../02_Boolean_Arithmetic/FullAdder.v"
+`include "../../02_Boolean_Arithmetic/Add16.v"
+`include "../../02_Boolean_Arithmetic/Inc16.v"
+`include "../../02_Boolean_Arithmetic/ALU.v"
+

02_Boolean_Arithmetic/05_ALU/apio.ini

@@ -0,0 +1,3 @@
+[env]
+board = iCE40-HX1K-EVB
+