[Info-vax] completion status from LIB$SPAWN

[Jan-Erik Soderholm]

Johnny Billquist wrote 2012-04-29 21:40:
> On 2012-04-29 20:48, David Froble wrote:
>> Paul Sture wrote:
>>> On Sun, 29 Apr 2012 14:09:41 +0000, glen herrmannsfeldt wrote:
>>>
>>>> Paul Sture <paul at sture.ch> wrote:
>>>>
>>>> (snip)
>>>>> There's also the history of compilers to consider. In my experience
>>>>> many commercial users (as opposed to scientific or academic users) who
>>>>> came to VAX/VMS in the early 1980s fell into 2 main camps:
>>>>> a) those who came from PDPs or other minis where BASIC was very popular
>>>>> b) those who came from more traditional mainframes where COBOL was
>>>>> pretty much king for business applications (IBM also had PL/I users
>>>>> in this sector).
>>>> And scientific users, mostly using Fortran.
>>>>
>>>
>>> Yes, and FORTRAN was the only HLL available for VMS when it first
>>> became available to ordinary customers. Was the earliest FORTRAN-IV? I
>>> did have that available on VMS at the end of 1980 (and was very glad
>>> for business usage when FORTRAN-77 came along with character variables
>>> among other new features).
>>>
>>
>> With the introduction of the Vax 11/780 in 1978 the initial target was
>> scientific users. Back at that time, that was a large market for DEC.
>>
>> Later, Basic Plus 2 was released on the 11/780 using PDP-11
>> compatibility mode. Several of the early systems had the PDP-11
>> compatibility mode, 11/750 and 11/730, and perhaps a few more. It
>> worked, but, it was PDP-11 compatibility mode, with the addressing
>> limitations, and still used the dreaded TKB and overlays.
>
> Back in VMS V1, basically everything was running in compatibility mode,
> FORTRAN included. And you still used RSX tools in general.
> One by one, VMS versions were developed of everything.
>
> As for PDP-11 compatibility mode in hardware, that existed in every machine
> until the VAX 8600 (and 8650). After that, it was all done in software.
>
> Johnny
>

I had the impression that it was all VAX 11/xxx modells (that had HW
PDP-11 support), or is that a too simple answer ? :-)