On Mon, Nov 18, 2013 at 3:07 AM, Mischa Baars <mjbaars1977@xxxxxxxxx> wrote: > On 11/18/2013 10:57 AM, Andrew Haley wrote: >> >> http://www.sco.com/developers/devspecs/abi386-4.pdf > > I see what you are pointing at (p.37), but it also says "DRAFT COPY" :) The version on the web site is a draft, but the exact same text appears in the book "System V Application Binary Interface Intel 386 Processor Supplement" published by AT&T in 1991. > This makes writing low-level functions very sensitive to errors. You are correct: writing low-level functions is very sensitive to errors. Ian