Nand2Tetris Questions and Answers Forum

If you have questions about Nand2Tetris projects or software, you are in the right place. Please select a sub-forum and review the posts; there is a good chance that a similar question was previously asked and answered. If not,  post your question, and we will answer it shortly. If you feel like answering some of the questions yourself, feel free. Please avoid posting solutions or solution segments (a few lines of code is fine). It's important to let people have the freedom to build the computer on their own.


Due to a large number of spam posts, you must be a registered member to post to the forum.

We are in the process of moving the nand2tetris.or site to another hosting service. Links may be temporarily bad.
If you find a bad link please report it in the "Errata/web site" section of this forum.


You can download the nand2tetris.zip file here if that link is still broken.
123456 ... 85
Topics (2945)
Replies Last Post Views Sub Forum
ALU.hdl not running by nemo
2
by nemo
Hack Memory System Explanation Confusion by jav4di
3
by jav4di
Chapter 4
Draw and Simulate your chips / logic gates by ashort
5
by AndyPro720
More Fun to Go
Suggestions for improvements in the book by aloha12
2
by andi
Book
For loop by Shagystan
1
by Shagystan
Chapter 1
HELP: Project 5 CPU Jump? by PAcmpstudent
0
by PAcmpstudent
Can somebody run my ALU hdl for me? by HighSchoolerWhoAsksH...
1
by HighSchoolerWhoAsksH...
Chapter 2
HardwareSimulator Calculator icon not becoming active by noob69
3
by rleininger
Software installation
Hi from Germany, introduce myself by HeinzWW
1
by sjain1
Users Forum
ALU working except for comparison failure at line 1. by HighSchoolerWhoAsksH...
10
by HighSchoolerWhoAsksH...
Chapter 2
in vm emulator,how do we set the ram value? by redemptionc
1
by redemptionc
Project 11
Is someone able to see my misstake? by sturmund
3
by sturmund
Hardware
Pong test does not display by LinearChaos
0
by LinearChaos
Project 12
How to use the hardware simulaitor? how can i impelement a nad gatter in a hdi? by kiohoilgb8
5
by rleininger
Hardware
CREATING PROGRAM COUNTER by Dan1984mor2017
3
by WBahn
Don't understand the use of Compilation Engine by sarthak
5
by redemptionc
Chapter 11
Project 11>Pong>VM Emulator runtime error: Illegal Rectangle Coordinates by johnnyFive
1
by johnnyFive
Project 11
Edition 2, Chapter 8 typos with Fibonacci by phayter
0
by phayter
Book
CPUEmulator by paul23
5
by paul23
Other
I did it !!!!!!!!!!!!!!!!!!!!!!!!!!!! by pawdwanlearner
1
by ishwar
Chapter 11
can't find bit.tst script by paul23
1
by paul23
Project 3
Efficiency... by aetesaki
6
by WBahn
Project 7
Confused about two's complement with ALU. by HighSchoolerWhoAsksH...
11
by WBahn
Chapter 2
Hi from the UK (again) by burge91
1
by chclau
Users Forum
Hi everyone from Israel by chclau
0
by chclau
Users Forum
MUX8WAY16 not working. I have no clue what is wrong. by HighSchoolerWhoAsksH...
11
by HighSchoolerWhoAsksH...
Chapter 1
Feedback on Edition 2 CPU project by phayter
1
by WBahn
Hardware
Feedback on Edition 2 CPU project by phayter
2
by phayter
Chapter 1
YAE (Yet Another Error)? by Simon
5
by redemptionc
Project 8
Add16 by ron2308
1
by WBahn
Chapter 2
Can't run Mult.tst: a .hdl file is expected by burge91
1
by burge91
Chapter 4
Incomplete PC chip specification by phayter
4
by WBahn
Errata, Bugs, and Such
RISC/CISC Hack Architecture by thatwillchaiguy
12
by yhirshhorn
Architecture
Stall states by yhirshhorn
1
by WBahn
Architecture
Stronger condition test by pmk21
4
by ashort
Project 8
123456 ... 85