4way mux hdl. Each will take as inputs the sel value and two of your in lines and generate a single out line. Inferring Shift Registers in HDL Code 2. */ CHIP Mux4Way16 { IN a [16], b [16], c [16], d [16], sel [2]; OUT out [16]; PARTS: // first we choose based on the first bit of information Contribute to csy-16/Nand2Tetris development by creating an account on GitHub. //The value of the 2bit selector is passed to each of the 4 way mux gates to //ensure that each time, only the bit from the desired set is selected. It seems we both misunderstood the sel [0] and sel [1]. Contribute to GabrielGallagher/nand2tetris development by creating an account on GitHub. (this project is hosted on Github) Note: schematics, truth tables, and HDL are only included where appropriate. You've got the right idea! A Mux converts two inputs into a single output. Good old column -t. Inferring ROM Functions from HDL Code 2. // File name: projects/01/Mux8Way16. If the simulator fails to find a Mux. answered Nov 24, 2019 at 19:44 Trebor the MadOverlord 1,299712 Start asking to get answers Oct 8, 2025 · A multiplexer is a combinational circuit that has many data inputs and a single output, depending on control or select inputs. * h if sel==111 */ CHIP Mux8Way16 { IN a[16], b[16], c[16], d[16], e[16], f[16], g[16], h[16], sel[3]; OUT out[16]; PARTS: Mux16(a=a,b=b,sel=sel[0],out=q); Mux16(a=c,b=d,sel=sel[0],out=r); Mux16(a=e,b=f,sel=sel[0],out=s); For example, consider the skeletal Mux. * out = a if sel==000 * b if sel==001 * etc. Use Synchronous Memory Blocks 2. Projects for The Elements of Computing Systems by Nisan and Schocken - tecs/Project1/Mux4Way16. hdl file in the current folder, it automatically invokes the built-in Mux implementation, which is part of the supplied simulator's environment. hdl program supplied in this project. // File name: projects/01/Mux4Way16. // This file is part of www. This is not a problem, thanks to the following convention. - aleksamarkoni/nand2tetris_coursera_solutions Nov 26, 2019 · You cannot have multiple components generating the same outputs. How to Build the Mux4Way16 Chip in Nand2Tetris Project [1] – Step-by-Step Tutorial! Mux4Way16(a=a,b=b,c=c,d=d,sel=sel[0. While the code is focused, press Alt+F1 for a menu of operations. hdl file in the current directory, it automatically invokes # Logic Gate ###### tags: `computerArchitecture` `digitalLogic` > [TOC] [Reference Video](https: 计算机系统要素，从零开始构建现代计算机. Contribute to Ads98/Hardware-simulation- development by creating an account on GitHub. * {a,b,c,d} = {in,0,0,0} if sel==00 * {0,in,0,0} if sel==01 * {0,0,in,0} if sel==10 * {0,0,0,in} if sel==11 */ CHIP DMux4Way { IN in, sel[2]; OUT a, b, c, d; PARTS: DMux(in=in,sel=sel[1],a=ao,b=bo); DMux(in=ao,sel=sel[0],a=a,b=b); DMux(in=bo,sel=sel[0],a=c,b=d); } Solutions to the Nand2Tetris course projects, available from https://www. nand2tetris. Inferring RAM functions from HDL Code 2. 1],out=out2); Mux16(a=out1,b=out2,sel=sel[2],out=out); // Put your code here: Which HDL are you trying to write your stuff in? It doesn't look either like VHDL or Verilog – Waiting for Dev Wow, I wrote the exact same code as yours. hdl /** * 8-way 16-bit multiplexor. 1],out=out1); Mux4Way16(a=e,b=f,c=g,d=h,sel=sel[0. Avoid Unsupported Reset and Control Conditions 2. // File name: projects/01/Mux. hdl at master · shriramch/Nand2Tetris Jul 15, 2025 · The Verilog Hardware Description Language is an important language in the world of digital design where electronic systems are modeled using it. hdl Building a computer from first principles. Jun 23, 2018 · An analog multiplexer implements the same function as digital MUX selecting the source of a signal from different analog source instead of digital. 4. GitHub Gist: instantly share code, notes, and snippets. This built-in Mux implementation has the same interface and functionality as those of the Mux chip described in the book. Multiplexers are also known as "N-to-1 selectors," parallel-to-serial converters, many-to-one circuits, and universal logic circuits. It provides a way of describing and simulating both the behavior and structure of digital circuits; hence, it is an important tool for engineers in hardware design and verification. Suppose that for one reason or another you did not complete the implementation of Mux, but you still want to use Mux chips as internal parts in other chip designs. In [0, 1], sel [0] = 1, sel [1] = 0. Check Read-During-Write Behavior 2. hdl /** * 4-way 16-bit multiplexor. . They are nand2tetris part 1, a practical course on how a computers work, you learn this by building your own simulated computer from logic gates all the way to the CPU and building programs that run on this Introduction to basic logic gates . Inferring RAM functions from HDL Code x 2. org/ - Nand2Tetris/Project 1/Mux4Way16. This document details API, schematic design, and HDL implementation for the nand2tetris course (based on "The Elements of Computing Systems"). As clear in Figure1, a MUX can be visualized as an n-way virtual switch whose output can be connected to one of the different input sources. All HDL implementations have been tested through the Hardware Simulator. // File name: projects/01/Mux16 Solution to programming assignments for nand2tetris course of coursera. You have 4 output lines, so you need to use 4 simple 1 bit muxes. 1. hdl at master · indragiek/tecs /* * 4 way 16 bit (bus) multiplexor requiring 2 control inputs * * sel [1] sel [0] | out * 0 0 | a * 0 1 | b * 1 0 | c * 1 1 | d * * In this case the diagram above is probably the simplest way to understand * how this actually works. 2. Jan 26, 2020 · A complete explanation of the Verilog code for a 4x1 Multiplexer (MUX) using Gate level, Dataflow, Behavioral, and Structural modeling along with the testbench. Contribute to gomezc08/Logic-Gates development by creating an account on GitHub. 3. In general, when doing these kinds of problems, the KISS principle holds; Keep It Simple and Stupid. Contribute to AllenWrong/nand2tetris development by creating an account on GitHub. You don't need any fancy logical manipulation of your sel [] bits, you can just use 2. Jan 12, 2021 · Your logic for selecting what input to pass through appears to be incorrect. So then to convert four inputs into a single output, we need to combine the output from two individual Mux chips into one single Mux chip. If our simulator fails to find a Mux. org // and the book "The Elements of Computing Systems" // by Nisan and Schocken, MIT Press. /** * 4-way demultiplexor. We would like to show you a description here but the site won’t allow us. // This file is part of www. For N input lines, log2(N) selection lines are required, or equivalently, for 2n input lines, n selection lines are needed. Verilog HDL provides for the making of detailed specifications of Nand2Tetris Project 1: Logic Gates. You should test it by creating a truth table for finalSel, notFinalSel, aAndB, cAndd and out for each of the 4 control conditions. s3j wz uay5 1x jcm wd 0opabfq cv7z 2m 1s3