[Info-vax] New CEO of VMS Software

[Arne Vajhøj]

On 1/5/2024 1:01 PM, bill wrote:
> On 1/5/2024 9:08 AM, Arne Vajhøj wrote:
>> On 1/4/2024 11:44 PM, Lawrence D'Oliveiro wrote:
>>> On Fri, 5 Jan 2024 03:09:37 -0000 (UTC), Dan Cross wrote:
>>>> I think, again, you are talking at cross-purposes: my suspicion is that
>>>> Arne is referring to a VMS compatibility layer built on top of Linux,
>>>> not the effort of porting VMS to x86_64.
>>>
>>> I thought I made it pretty clear early on that I was only talking about
>>> porting across userland executables and DCL command procedures--just the
>>> parts of VMS that users care about, nothing more.
>>
>> If the goal is 90% compatibility, then it is reasonable easy and
>> low cost. But no customer demand.
>>
>> If the goal is 100% compatibility, then it becomes tricky and expensive.
>>
>> There will be both some hard problems and a gazillion trivial problems
>> to deal with.
>>
>> Let me be specific. It is not difficult creating functions named
>> LIB$GETJPI and SYS$GETJPIW accepting certain argument. But what are
>> they going to return when asked for an item that does not exist
>> on Linux?
>>
> 
> What would they return if asked for an item that does not exist on VMS?

SS$_BADPARAM I believe.

But returning that for items codes working on VMS could
easily break code.

Arne