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.


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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.
Subcategories Topics Posts Last Post
Information about the web site, the forum, etc. 11 11
by cadet1620
961 4510
by DK3250
426 1915
by WBahn
127 512
by guardiancrescent
284 1341
by WBahn
251 1104
by WBahn
Sub-Forums: Chapter 12 Project 12 
119 454
by ajstylesfan2002
Any ideas about new projects related to this book / course? Please share them with us! 106 387
by magiwanders
Posts about errors, bugs, or problems found in the book, projects, or software tools 159 621
by Yishail12
Posts that don't fall in any category go here 156 564
by DK3250
If you wish to say a few words about yourself, please write a post here. It's always fun to know who is using the book / course and in what capacity (instructor, student, self-learner, ...). 106 255
by Lozminda
How to implement 4 bit right shift register using D flip flop? Is there any way to convert universal logic gates ( or ) to DFF and then implement 4 bit right shift register? I am attaching the shift right code which I did using or gates, can you please help me to do the 4 bit right shift regis... 1 13
by WBahn
I use Pop! OS and not sure really how to run the tools as necessary. Since, Pop! OS is is based on Ubuntu so I presume it's the same. All I can find are directions based off of Ubuntu LTS 16 or the most recent Linux system being Linux Mint 19.... I tried giving permissions to execute but still... 1 4
by Lozminda
When I load the FullAdder.hdl in the Hardware Simulator, the HDL box stays blank. I can also load the script but cannot run it. I faced no such problem while creating Project01 and the HalfAdder. *FullAdder was created using two HalfAdders. * Untitled.jpg (151K) <http://nand2tetri... 1 1
by WBahn
What frequency does the CPU emulator run at when there are no animations and the slider is set to fast? I am creating the Nand2Tetris computer on breadboards (sort of like Ben Eaters breadbaord computer) and I want to know roughly what clock input to use. 2 8
by Gerrit0
Is there a software that transforms an HDL file into a graphic schematic presentation of the chip? Thank you very much, Rmai 2 4
by WBahn
Hi, I hope all is well. When I try to install the Software Simulator on my computer, Microsoft informs me that I would have to switch out of S Mode: "You may want to think twice about switching out of S mode. Especially if performance and peace of mind are your top priorities. S mo... 1 1
by WBahn
Are there stilll plans in releasing nand2tetris part 3, as Shimon says in unit 7.3 More Fun to Go ? 1 4
by ashort