6. Output Formats

The format of the assembler's output is selected by commandline options. These are:

-omf	Intel's "relocatable Object Module Format", including 32-bit MS extensions. It's the default.
-coff	(MS) COFF object module format, supports flat memory models only. It's usually used for 32-bit Windows modules.
-elf	32-Bit ELF ("Executable and Linkable Format") object modules.
-elf64	64-bit ELF object modules.
-win64	64-bit format for Win64 object modules. COFF variant with 64-bit extensions.
-djgpp	COFF variant used by DJGPP. Not active in precompiled binaries.
-bin	raw binary format.
-mz	DOS MZ binary format.
-pe	32- and 64-bit PE binaries.

The formats selected by -bin, -mz and -pe are binary formats, hence the output is not supposed to be fed to a linker.