7 Dec
2024
7 Dec
'24
10:41 p.m.
On 7 Dec 2024, at 17:38, Warner Losh <imp(a)bsdimp.com> wrote:
Yes. There were namespace hooks of a sort that one
could hook into via a TSR... I wrote something for a DOS 3.1 system that had a few initial
UNDOCUMENTED interfaces. I couldn't ever get anything to work beyond the init...
Yes, TSRs… the art of loading them in the correct sequence so that you did not make your
machine unstable. Some we really quite useful, for example there was one which I seem to
recall was called “Tornado” which allowed you to write linked and indexed notes, a bit
like an early Hypercard?
Then there were the ones hooking services to give you access to the RAM between 640kB and
1MB, the ones to page in & out memory > 1MB, oh the horrors… I was really rather
pleased with my 386 running Unix!
Arrigo