[Simh] RT-11 source

[Johnny Billquist]

On 2016-10-22 20:21, Ray Jewhurst wrote:
> I know some of the code is already there but I need comments since I am
> not an expert or even a real advanced programmer in assembly. Also, the
> beauty of running a simulator is that hardware resources are not as much
> of a problem so I more to fill in the gaps for the stuff I am unsure of.
> My personal assembly "bible " covers some systems programming but not
> all. I will have to share the title of the book when I am near it. It is
> available on Amazon. What my plans are is to make a simple OS with a
> dual command set using both the RT-11 command line interface and RSX
> style DCL. Just something fun to play with....

The command line interface is really a very simple and small part of it 
all. First you need to have the actual kernel, which manage memory and 
devices. You need device drivers. And you need an API to access it all.
The you need some CUSPs.

The command line interface is really not even properly a part of the kernel.

	Johnny

>
>
> On Oct 22, 2016 11:58 AM, "Johnny Billquist" <bqt at softjar.se
> <mailto:bqt at softjar.se>> wrote:
>
>     On 2016-10-22 16:44, Ray Jewhurst wrote:
>
>         I know that RT-11 is under license from Mentec but is there a
>         way to get
>         the sources for it?  I would like preferably v5.3.  I have an
>         idea for
>         project to teach my self rudimentary OS design and I would like
>         to use
>         RT-11 as an example since PDP-11 assembly is the only assembly I
>         know
>         and I am already comfortable with RT-11.
>
>
>     Unless I'm confused, RT-11 already comes with some sources, but they
>     are stripped of comments.
>
>     Also, as an OS, it is rather rudimentary. And the code is sometimes
>     not that easy to follow, since they have used a lot of tricks to
>     squeeze the most functionality with the minimal amount of memory use.
>
>             Johnny
>
>     --
>     Johnny Billquist                  || "I'm on a bus
>                                       ||  on a psychedelic trip
>     email: bqt at softjar.se <mailto:bqt at softjar.se>             ||
>     Reading murder books
>     pdp is alive!                     ||  tryin' to stay hip" - B. Idol
>     _______________________________________________
>     Simh mailing list
>     Simh at trailing-edge.com <mailto:Simh at trailing-edge.com>
>     http://mailman.trailing-edge.com/mailman/listinfo/simh
>     <http://mailman.trailing-edge.com/mailman/listinfo/simh>
>


-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol