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(nasm.info)Chapter 6

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Chapter 6: Output Formats
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   NASM is a portable assembler, designed to be able to compile on any
ANSI C- supporting platform and produce output to run on a variety of
Intel x86 operating systems. For this reason, it has a large number of
available output formats, selected using the `-f' option on the NASM
command line. Each of these formats, along with its extensions to the
base NASM syntax, is detailed in this chapter.

   As stated in *Note Section 2.1.1::, NASM chooses a default name for
your output file based on the input file name and the chosen output
format. This will be generated by removing the extension (`.asm', `.s',
or whatever you like to use) from the input file name, and substituting
an extension defined by the output format. The extensions are given
with each format below.

Section 6.1

`bin': Flat-Form Binary Output

Section 6.2

`obj': Microsoft OMF Object Files

Section 6.3

`win32': Microsoft Win32 Object Files

Section 6.4

`coff': Common Object File Format

Section 6.5

`elf': Executable and Linkable Format Object Files

Section 6.6

`aout': Linux `a.out' Object Files

Section 6.7

`aoutb': NetBSD/FreeBSD/OpenBSD `a.out' Object Files

Section 6.8

`as86': Minix/Linux `as86' Object Files

Section 6.9

`rdf': Relocatable Dynamic Object File Format

Section 6.10

`dbg': Debugging Format