[TUHS] Unix quix

[Paul Winalski]

On 1/22/20, Noel Chiappa <jnc at mercury.lcs.mit.edu> wrote:
>
> Pretty interesting machine, if you study its instruction set, BTW; with no
> stack, subroutines are 'interesting'.

The IBM S/360/370 operating systems such as DOS/360 and DOS/VS didn't
use a stack, either, unless you were doing recursion.  When we got our
VAX, I was puzzled as to why they would throw away an entire register
just to point at a stack.

-Paul W.