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" <b...@softjar.se <mailto:b...@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: b...@softjar.se <mailto:b...@softjar.se> || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol _______________________________________________ Simh mailing list Simh@trailing-edge.com <mailto:Simh@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: b...@softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol _______________________________________________ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh