[TUHS] Design of the AT&T assembly syntax

Alexander Voropay alec at sensi.org
Tue Oct 29 07:48:29 AEST 2019

Robert Clausecker <fuz at fuz.su>wrote:

> The one thing in this chain I have never found is an AT&T style
> assembler for x86 before ELF was introduced.

There were alot of AT&T codebase ports to x86 architecture except Xenix:
Microport, INTERACTIVE, Everex, Wyse e.t.c. using AT&T x86 syntax.

I've tried Microport SystemV /386 (SysV R3.2). It uses COFF
as format for executables:
(Rather interesting kernel ABI/Call convention)


There were also SystemV R2 to i286 ports i.e.:
with a.out binary format.

More information about the TUHS mailing list