This is the project webpage for the Netwide Assembler (NASM), an asssembler for the x86 CPU architecture portable to nearly every modern platform, and with code generation for many platforms old and new.
As of version 2.07, NASM is now under the Simplified (2-clause) BSD license. The details of the license are available in the documentation.
On July 1, 2020, the official NASM git repository moved to github.
The previous repository on repo.or.cz is no longer maintained.
NASM was originally developed by Simon Tatham and Julian Hall, and is now maintained by a team led by H. Peter Anvin.
Currently active team members are:
... with support from many others, and we are always looking for more developers.
We're looking for your comments, suggestions and, of course, bug-reports. Report any suspicious behavior you encounter to help us improve the NASM for everyone!
Please post your messages to the mailing list, or file a bug report.
Don't worry if your report is not immediately addressed, even within the first few days, as this is usual for us. Your report will, however, be recorded and dealt with, of course, as time permits.