instability in Berkeley versus AT&T releases
Peter da Silva
peter at baylor.UUCP
Tue Aug 13 11:24:30 AEST 1985
> > IBM is pretty braindamaged but even they don't require you to run MVS on
> > your XT.
>
> That's a remarkably irrelevant example, considering 1) it has nothing to do
> with internal vs. external releases and 2) since MVS is written in 360
> assembler and PL/S, and since the former *can't* run on an 8088 without a
> slow simulator and the latter probably has lots of 360-dependent goo in it,
> you couldn't run MVS on a PC anyway.
OK. Take any IBM operating system and stick it in there. I'm not an expert
on IBM.
> > Also most "non AT&T" UNIX systems predate System V. The ones that claim to
> > be System III are almost all Microsoft or Unisoft releases
>
> The HP ones? The CCI one? (more on that one later) The Plexus one?
No, just most. A goodly percentage are TRS-80 model 16s.
> > and are V7 with SIII patches
>
> So what? The TTY driver seems to be your primary source of dyspepsia; I
> suspect most systems which are "V7 with S3 patches" have S3 libraries and a
> kernel which started out as a V7 kernel and got changed to resemble S3,
> including having the S3 tty driver dropped into it (I know that's how the
> CCI system was done, since I was one of the people who did it). As such,
> well, if it looks like a duck, and walks like a duck, and quacks like a
> duck, who cares if it's a goose with duck patches?
It doesn't quack like a duck since I took a program from V7 to Unisoft SIII
and compiled it and it ran. No problems.
> > (which is why I didn't have to know about MIN & TIME when I was working
> > on Xenix 3.0. Nice of Microsoft to tell me).
>
> This has been explained to you elsewhere, but if you're clearing the ICANON
Yes, it was explained by the OEM the "SIII" came from, after I asked him
why the SIII wasn't SV compatible.
> bit, you either have to set MIN and TIME to get reliable results or they
> botched the tty driver.
They didn't appear to have attempted to convert the TTY driver. VMIN and
VTIME should never have been part of c_cc[] in the first place, so if they
had converted it and made them seperate somewhere I'd hardly call it a botch.
> Guy Harris
Peter da Silva (wondering why he's still flaming me over VMIN and VTIME).
PS: I don't know what current Xenix3 or Uniplus+ are like, so if they have
"fixed" these "bugs" since the systems I was trying to port things between
were released don't flame me for that. I get enough of it from Guy & Bill.
--
Peter da Silva (the mad Australian)
UUCP: ...!shell!neuro1!{hyd-ptd,baylor,datafac}!peter
MCI: PDASILVA; CIS: 70216,1076
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