[Simh] 7094 emulator and CTSS

[Andrew Warkentin]

SPC wrote:
>
> Just curious... How goes the IBM 7094 emulation and CTSS run ? Some 
> advances ?
>
(oops, this should have been sent to the list)

Richard Cornwell (http://sky-visions.com/) had managed to get some of 
the standalone utilities working in his simulator (which is SIMH-based, 
but shares no code other than the SCP with the one included in the main 
SIMH distribution) a while ago. The disks and drum can be formatted, and 
the filesystem can be initialized, but there is currently no way to 
restore any files to the filesystem.

I am in the process of converting all of the listings into usable 
sources, and writing a few simple standalone utilities based on CTSS's 
filesystem code to make UFDs and write files into the filesystem. To 
actually get CTSS running, my plan is something like this:

Build the supervisor, FAP, and MAD with asm7090 and lnk7090
Convert the FAP and MAD lnk7090 object files into CTSS executable core 
images with a script
Write the FAP and MAD core images into the appropriate place in the 
filesystem with a standalone 7094 program
Write all of the sources into the filesystem with a standalone 7094 program
Load the supervisor object file into the simulator and run it
Use FAP and MAD under CTSS to build the rest of the system