Gas, commanded as as when typed from the shell, is the GNU assembler. It is the default GNU Compiler Collection back-end and is used to compile Linux and other operating systems such as the GNU operating system. It is a part of the GNU Binutils package.

Gas runs and assembles on and for a number of different architectures. One source of criticism is the fact that it uses the AT&T assembler syntax, rather than the Intel syntax used in many other assemblers; later versions do however support the Intel syntax.

It is free software, and is released under the GNU General Public License.

See also

• GNU toolchain
• FASM (Flat Assembler)
• HLA (High Level Assembler)
• MASM (Macro/MS Assembler)
• NASM (Netwide Assembler)
• TASM (Turbo Assembler)

External links

• GNU Binutils homepage

Assemblers | GNU project software | Free compilers and interpreters

GNU Assembler | GNU Assembler