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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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
Please read The Hardware Construction Survival Kit for answers to common questions and other useful information. 993 4742
by bojo
452 2086
by TimHortons
133 552
by Lozminda
290 1366
by WBahn
261 1156
by Ichiro
Sub-Forums: Chapter 12 Project 12
123 474
by WBahn
Any ideas about new projects related to this book / course? Please share them with us! 111 427
by jack chan
Posts about errors, bugs, or problems found in the book, projects, or software tools 171 656
by WBahn
Posts that don't fall in any category go here 163 598
by fei
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, ...). 114 273
by WBahn
Why not remove the special constructor subroutine and replace it with a normal function ? : class Point { field int mX, mY; method void cons ( int x, int y ) { let mX = x; let mY = y; return; } function Point make ( int x, int y ) { var Point p; let p = Memory.... 1 3
by ivant
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 5
by Prashanth Kumar
My c-instruction at the highlighted part has '001' for the last three digits. We have agreed that as long as there is no jump, the PC will increment by 1. Yet the correct value is supposed to be 26 for the PC counter, not 1000, which is the value of A-reg. But instruction[16] does have a jump... 1 3
by WBahn
Hi, I was wondering, why does the course not include the clock when discussing the Hack Computer architecture? From what I understood, the clock is a key component of a sequential computer, such as the Hack machine undoubtedly is.... I also feel that I lack a truly solid understanding of c... 1 1
by WBahn
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
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