[Info-vax] VAX vs. MV/8000 [was Re: Hard links on VMS ODS5 disks]

[bill]

On 8/29/2023 1:33 PM, Simon Clubley wrote:
> On 2023-08-29, Johnny Billquist <bqt at softjar.se> wrote:
>>
>> Oh, I agree that we're splitting hairs. But I do think DG went a bit
>> further than AMD did, with the goal of being able to basically just move
>> the binaries over and run them. Hence the two stacks, and all that ugliness.
>> Yes, the OS might still need to set some things up, but I don't think
>> it's completely comparable what DG did with what AMD did, just as it
>> isn't the same as what DEC did.
>>
>> And with all that said, I do think DG made a bad choice. AMD basically
>> did a good choice (or better, at least - anything involving the x86 is
>> inherently bad... ;-) ).
>>
> 
> And none of that compares to the extreme compatibility that IBM maintains
> with its mainframe architecture. It's reported that you can _still_ run
> S/360 application programs unchanged on modern mainframes...
> 
> Simon.
> 

I'm not positive as it has been a long time since I was really active
in that world but I think the same is true of Unisys and old 1100 code.

bill