On Mon, Dec 31, 2018, 1:38 PM Noel Chiappa <jnc(a)mercury.lcs.mit.edu wrote:
What is magic number 0411? That one I've
never heard of before.
It's a PDP-11-ism. Separate I+D.
Venix/86, a v7 sys iii hybrid that ran on 8086/286 also uses it for
basically the same thing... its compiler was limited to one 64k code
segment and one 64k data / stack segment. The syscall interface depends on
this quirk as well...