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# as
> Portable GNU assembler.
> Primarily intended to assemble output from `gcc` to be used by `ld`.
> More information: <https://manned.org/as>.
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- Assemble a file, writing the output to `a.out`:
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`as {{path/to/file.s}}`
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- Assemble the output to a given file:
`as {{path/to/file.s}} -o {{path/to/output_file.o}}`
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- Generate output faster by skipping whitespace and comment preprocessing. (Should only be used for trusted compilers):
`as -f {{path/to/file.s}}`
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- Include a given path to the list of directories to search for files specified in `.include` directives:
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`as -I {{path/to/directory}} {{path/to/file.s}}`