[Info-vax] 64-bit (was Re: New CEO of VMS Software)

[Scott Dorsey]

In article <unkjij$26ao8$1 at dont-email.me>,
Lawrence D'Oliveiro  <ldo at nz.invalid> wrote:
>On 9 Jan 2024 22:56:47 -0000, Scott Dorsey wrote:
>
>> In article <unkdkr$25et9$1 at dont-email.me>,
>> Lawrence D'Oliveiro  <ldo at nz.invalid> wrote:
>>>
>>>On Tue, 9 Jan 2024 21:06 +0000 (GMT Standard Time), John Dallman wrote:
>>>
>>>> I was presuming that the 64-bit VMS APIs would have 64-bit specific
>>>> names ...
>>>
>>>Or use the same names, and just link against different versions of the
>>>libraries, located in suitable architecture-specific directories, as
>>>selected by the build script.
>> 
>> Linux did it with different versions in different directories with the
>> same name.  Solaris did it with different names.  In the end the Solaris
>> route was much less frustrating to debug.
>
>Solaris never ran on 2 dozen different architectures though, did it?

Not at the same time.  Only two at the same time.

Same with VMS, which did have a 16-bit compatibility mode to run code of
two different architectures at the same time early on.

The Pr1me fifty-series, now THOSE had dozens of different architectures in
the same box, seemingly.  Because you can never have enough mode bits.
--scott
-- 
"C'est un Nagra. C'est suisse, et tres, tres precis."