[Info-vax] OpenVMS 35th anniversary

[Johnny Billquist]

On 2012-10-04 15:38, John Reagan wrote:
>
>
>> "Johnny Billquist"  wrote in message
>> news:k4jnq5$hp6$1 at Iltempo.Update.UU.SE...
>>
>> User space CUSPs and languages in VMS was pretty much RSX-11M for the
>> first couple of years, though.
>
> My understanding was that the early bootstrapping was with
> cross-compilers on TOPS-20.  When I joined the compiler group in summer
> 1983, they were just disassembling the DECSYSTEM-20 used for BLISS-36
> development and the prior cross-builds.  Everything was native built by
> the time I got there.

Well, what system they used for some of the tools and compilers for RSX 
I'll leave unsaid.
However, in the early VMS days, they literally used the RSX binaries.

The same for the VMS tools. How those were built, I don't know. My 
comment was just that in the early days, VMS didn't have any languages 
or tools. Only the kernel, DCL, and some select libraries in VMS 1.0 
(pretty much) was a VAX binary. Everything else was just straight RSX 
binaries running on the VAX in compatibility mode.

	Johnny