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 (3168)
Replies Last Post Views Sub Forum
Call and Return as global functions (and LT,GT,and EQ too) by virote328
5
by cadet1620
Project 8
Thinking of starting - where are chapters 7 through 12? by Paul
4
by cadet1620
Other
Instruction MD=D-1 by Clive Barker
5
by Clive Barker
Chapter 5
RAM and ROM by ysh443
4
by cadet1620
Chapter 6
zr & ng implementation by Loafers
2
by cadet1620
Project 2
where to start by ysh443
1
by cadet1620
Project 6
programming ability as only prerequisite? by Maesltrom
4
by Maesltrom
Chapter 1
Project 4: "Programs" section, Comments/Tests paragraph. by John
0
by John
Web site
Controlling the a-bit by ninmurai
1
by cadet1620
Chapter 4
The Jump specification by AndyGeo
2
by AndyGeo
Chapter 4
nult.tst checking for things not in spec? by WBahn
1
by AndyGeo
Project 4
D and A register manipulation by AndyGeo
1
by cadet1620
Chapter 4
The keyboard by virote328
1
by cadet1620
CPU Emulator
is my DMux4Way solution inelegant? by Loafers
6
by Loafers
Chapter 1
Thoughts on the course so far by Mark M
0
by Mark M
Users Forum
Implementing secondPass by Jer
1
by krakerjak
Project 6
Contradictory specs in memory.hdl by WBahn
0
by WBahn
Project 5
Why n is always a power of 2? by aexpert999
2
by virote328
Other
Curious ALU problem. by Mark M
2
by Mark M
Chapter 2
Pong Shematic: Logic Gates by moarmango
0
by moarmango
Other
"Cannot connect part's output pin to gate's input pin" by ninmurai
2
by ninmurai
Chapter 2
Minor Compiler bug by MarkR
0
by MarkR
Supplied Compiler
testing the bit by mike2549
1
by cadet1620
Chapter 3
eq implementation by aexpert999
1
by aexpert999
Project 7
using only A and D on HACK by ysh443
3
by cadet1620
Project 4
ALU operations by AndyGeo
3
by cadet1620
Chapter 2
Is it ok to do whatever we want with invalid memory address inputs? by chris1255
2
by chris1255
Chapter 5
Spent almost 40 minutes implementing NOT by Sazi
7
by cadet1620
Chapter 1
multiply action on reduced clock cycle by ysh443
3
by cadet1620
Project 4
Andy's Journo by AndyGeo
0
by AndyGeo
Users Forum
[Workaround] Can't resize HW Simulator window to see error output? by mmiller7
12
by Albert G
Hardware Simulator
ALU Completed by Ken Singleotn
1
by ybakos
Chapter 2
Variable declarations in the asm language by Albert G
1
by cadet1620
Chapter 4
Number of transistors on a Intel chip by BLOB
4
by BLOB
Other
I feel left out! by BLOB
1
by cadet1620
Users Forum
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