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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Software and tools can be downloaded from the Nand2Tetris site.
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Topics (3170)
Replies Last Post Views Sub Forum
projects\01\Mux.hdl - Not always returns 1 by robotron
2
by robotron
Projects
drawing screen pixels and output characters by cipherdog
2
by cipherdog
Project 12
Clarification needed in the ALU part of CPU.hdl. by wangdw406
2
by wangdw406
Project 5
negative values by yoniman
1
by cadet1620
Chapter 2
Hardware simulator - implementation artifact? by Foggerty
3
by cadet1620
Hardware Simulator
Not16 Incomplete Truth Table? by Nick Lee
4
by Nick Lee
Project 1
Help needed with PC - not sure where to get output from? by dhruvkapur91
1
by cadet1620
Project 3
Why does 0 And 1 = 0? by 25b4a97a
2
by 25b4a97a
Chapter 1
Please help with the ALU code bug. by rajat
2
by rajat
Project 2
hello from a cygwin user by invitro
1
by cadet1620
Users Forum
How to run assembler from the command line? by cdg
4
by cdg
Project 6
Alien Language by runningbio
1
by cadet1620
Users Forum
How can I understand time sequence in “Bit.cmp” by Desmond.Song
2
by Desmond
Project 3
mux4way16,help please!what's wrong with it? by bluce
3
by bluce
Chapter 1
Question About Screen Memory Map by Jatudrea
10
by cadet1620
Chapter 4
Keyboard Commands Don't Work in VmEmulator by blossoms75
4
by blossoms75
Chapter 9
Why is out = 1 when all the control bits are set to 1? by wetFence
4
by cadet1620
Chapter 2
Translating Logic Tables into boolean algebra functions by jeatontech
3
by Thyreen
Chapter 1
HardwareSimulator.sh on Ubuntu 16.04 SIGSEGV by SteveGreen
2
by SteveGreen
Hardware Simulator
Multiple Options for Not by runningbio
5
by cadet1620
Chapter 1
DMux4Way Selector Ordering by wrinklytech
7
by cadet1620
Chapter 1
Fill.asm screen flickering by ElliottS
2
by ElliottS
Project 4
update of A register over time by cdg
2
by cdg
Project 5
Adjusting command line execution for all the tests by longj_silver
6
by cadet1620
Hardware Simulator
Internal pin to bus by pouzzler
18
by pango333
Appendix A (HDL)
Add16 outputs by pango333
2
by pango333
Chapter 2
problem With D-Latch by sarthak
3
by cadet1620
Chapter 1
Not gate by dsvyatet
1
by cadet1620
Chapter 1
clock speed by rickx34
3
by ybakos
Chapter 3
Re: Problem with arithmetic implementation of ALU by Juanaian
3
by cadet1620
Chapter 2
Trouble with an error in hardware simulator by Jeff Solin
12
by ybakos
Chapter 2
How can I choose a jump command for if-goto? by Jack ZRP
1
by cadet1620
Project 8
Just starting out ? ...no source pin by mailbox@pmdennis.com
2
by mailbox@pmdennis.com
Chapter 1
Registry implemtation alternative without time input by rickx34
2
by cadet1620
Chapter 3
Hardware Simulator Keeps Crashing when testing RAM64 by Jibberish
4
by cadet1620
Chapter 3
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