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Package flat assembler (fasm)
Titleflat assembler (fasm)
Version1.71.62
Date modified2017-05-12.0
Date entered2017-05-08
Descriptionfast but powerful 80x86 assembler
SummaryThe flat assembler (abbreviated to fasm) is a fast self-assembling assembler for DOS, Windows and Linux operating systems. It was designed primarily for the assembly of x86 instructions and it supports x86 and x86-64 instructions sets with MMX, 3DNow!, SSE up to SSE4, AVX, AVX2, XOP and AVX-512 extensions and can produce output in plain binary, MZ, PE, COFF or ELF format. It includes the powerful but easy to use macroinstruction support and does multiple passes to optimize the size of instruction codes. The flat assembler is self-hosting and the complete source code is included.
AuthorTomasz Grysztar <privalov _AT_ o2.pl>
Maintained byTomasz Grysztar <privalov _AT_ o2.pl>
Copying policyModified (2-Clause) BSD License
Keywordsassembler, asm, fasm
PlatformsDOS
Primary sitehttp:/​/​flatassembler.net/​
Original Sitehttp:/​/​fasm.sourceforge.net/​
CRC3274b27990
SHA15f526051f9300caf​60d80b7cf43edfaf​5e3a1daa
Package size422,645 bytes
Downloadfasm.zip
Screen shot images have not yet been implemented.
30 alternate versions
modified 2025-03-20.0version 1.73.32
modified 2023-07-16.0version 1.73.31
modified 2022-05-17.0version 1.73.30
modified 2022-02-20.0version 1.73.29
modified 2022-02-17.0version 1.73.28
modified 2021-03-18.0version 1.73.27a
modified 2021-01-31.0version 1.73.27
modified 2020-10-02.3version 1.73.25
modified 2020-07-11.0version 1.73.24
modified 2020-04-19.1version 1.73.23
modified 2020-02-28.2version 1.73.22
modified 2019-12-07.1version 1.73.21
modified 2019-12-01.1version 1.73.20
modified 2019-12-01.0version 1.73.19
modified 2019-11-22.4version 1.73.18
modified 2019-11-11.0version 1.73.17
modified 2019-09-28.0version 1.73.16
modified 2019-05-25.0version 1.73.12
modified 2019-04-20.0version 1.73.11
modified 2019-04-20.0version 1.73.10
modified 2019-02-23.0version 1.73.09
modified 2019-02-11.0version 1.73.08
modified 2019-01-06.0version 1.73.06
modified 2018-06-11.0version 1.73.04
modified 2017-11-19.0version 1.72
modified 2017-07-31.6version 1.71.64
modified 2017-05-05.0version 1.71.61
modified 2017-04-02.0version 1.71.60
modified 2016-10-29.6version 1.71.57
modified 2012-09-24.6version 1.70
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page last modified on Sun May 11 12:32:02 EDT 2025