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 (3191)
Replies Last Post Views Sub Forum
CPU.hdl: Comparison failure at line 29 by Chen Li
8
by cadet1620
Project 5
Supplied compiler doesn't agree what is true between if statement and while statement by bupjae
2
by ivant
Supplied Compiler
How to optimize drawRectangle or drawHorizontalLine? Pong games are very slow. by bin
2
by bin
Project 12
Why 16384 is not screen range? by bin
2
by bin
Project 12
my idea to resolve JMP in CPU by osma78
2
by osma78
Project 5
Problem with a WiteM bit in CPU CHIP by osma78
2
by osma78
Project 5
error installation by Bacte1968
1
by cadet1620
Chapter 9
Problem with the first Mux In diagram 5.8 of a CPU by osma78
2
by osma78
Project 5
Assembler listing file? by cadet1620
1
by pmk21
Project 6
POINTER (What is it ) ? by Minoshi
7
by Minoshi
Chapter 4
Boolean Logic Truth Table by pimaths66
4
by pimaths66
Book - 1st Edition
PUT A VALUE IN RAM by Minoshi
6
by Minoshi
Chapter 4
Appendix A Link? by peterdcasey
2
by peterdcasey
Other
How to copy a bit value by mslinklater
2
by mslinklater
Chapter 2
Problems with screen by Nick1999N2T
1
by cadet1620
Tool Suite
BIT CHIP by Minoshi
7
by Minoshi
Project 3
Confusion with the Control Bits within the ALU by cdrh
1
by cadet1620
Chapter 2
multi-bit internal signals by diffract|
4
by keithnier
Project 2
Problems with logisim by tyler1313
1
by cadet1620
Chapter 5
NestedCall Test failure by bin
2
by bin
Project 8
how machine language code can be burned inside ROM ? by trogne
4
by trogne
Chapter 5
Chinese version of the book? by atobe
1
by Faradenza
Other
how RAM64+ unit can read/write independant registers ? by trogne
10
by cadet1620
Project 3
Expanded SquareGame by Kcodarc
1
by cadet1620
Project 9
ALU pin inputs by chancharles
0
by chancharles
Chapter 5
Hardware insight - More fun and games! by jjmoore1970
1
by jjmoore1970
Other
Have problem with my pc.hdl by Chen Li
3
by cadet1620
Project 3
Memory leaks in 2048 game by isaevpd
2
by isaevpd
Chapter 9
Error?: A .cmp file for a test with extra or missing pin names is not warned about. by Michael Gainer
1
by cadet1620
Projects
Data flip flop has only one input and output?? by tyler1313
3
by cadet1620
Project 3
Having question about constructor by thomaschan
4
by cadet1620
Project 11
MemoryTest fail by chrisshyi
3
by cadet1620
Project 12
Thank You by virote328
2
by Jason Toams
More Fun to Go
Register.hdl by tyler1313
2
by tyler1313
Project 3
VM Language and Implementation Summary by cadet1620
0
by cadet1620
Virtual Machine
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