# fsource-asm

Produces an assembly listing with source code annotations. This feature is only available for ifort.

## Syntax

Linux: | -fsource-asm

macOS: | -fsource-asm

Windows: | None

## Arguments

None

## Default

OFF | No source code annotations appear in the assembly listing file, if one is produced.

## Description

This option produces an assembly listing file with source code annotations. The assembly listing file shows the source code as interspersed comments.

To use this option, you must also specify option -S, which causes an assembly listing to be generated.

## IDE Equivalent

None

## Alternate Options

Linux and macOS: None

Windows: /FAs

Parent topic: Output, Debug, and Precompiled Header Options

## See Also

S compiler option