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as — Portable GNU assembler. Primarily intended to assemble output from `gcc` to be used by `ld`. More in

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Problem

How to use the as command: Portable GNU assembler. Primarily intended to assemble output from gcc to be used by ld. More information: <https://keith.github.io/xcode-man-pages/as.1.html>.

Solution

as — Portable GNU assembler. Primarily intended to assemble output from gcc to be used by ld. More information: <https://keith.github.io/xcode-man-pages/as.1.html>.

Assemble a file, writing the output to a.out:
as {{path/to/file.s}}


Assemble the output to a given file:
as {{path/to/file.s}} -o {{path/to/output_file.o}}


Generate output faster by skipping whitespace and comment preprocessing. (Should only be used for trusted compilers):
as -f {{path/to/file.s}}


Include a given path to the list of directories to search for files specified in .include directives:
as -I {{path/to/directory}} {{path/to/file.s}}

Code Snippets

Assemble a file, writing the output to `a.out`

as {{path/to/file.s}}

Assemble the output to a given file

as {{path/to/file.s}} -o {{path/to/output_file.o}}

Generate output faster by skipping whitespace and comment preprocessing. (Should only be used for trusted compilers)

as -f {{path/to/file.s}}

Include a given path to the list of directories to search for files specified in `.include` directives

as -I {{path/to/directory}} {{path/to/file.s}}

Context

tldr-pages: osx/as

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