rcornwell.sims/SEL32

SEL32 Development Simulator

This is a working copy of a simulator for the SEL Concept/32 computer. The current test version is for the SEL 32/27, 32/67, 32/77, 32/87 and 32/97 computers. Initial support is provided for the V6 and V9 cpus. Support for 32/55 computers may be added in the future.

SEL Concept/32

This simulator is running a test version of MPX-32 1.5F. It is capable of creating a disk image of the O/S from a SDT tape. The disk image can be booted, initialized, and run many of the MPX utilities; including OPCOM & TSM. Eight terminals can be used to access TSM via Telnet port 4747. Initial support has been added for excess 64 floating point arithmetic. More testing is still required. The sim32disk.gz can be uncompressed and booted with the sel32.27.sim32.disk.ini initialization file. The sim32sdt.tap.gz file can also be uncompressed and started with the sel32.27.sim32.tape.ini initialization file to install to disk from tape.

Available tap tools: taptools.tgz - set of tools to work with .tap formatted tapes. Also tools to convert between MPX and UNIX file formats. See README file and source for descriptions.

Available disk images: sim32disk.gz - bootable 300mb disk with MPX1.5F installed. Unzip before any attempt to use it. Use sel32.27.sim32.disk.ini command file to start MPX 1.5. ./sel32 sel32.27.sim32.disk.ini

Available configuration SDT tapes: sim32sdt.tap - MPX 1.5f user SDT install tape. Uses 300mb disk, IOP 8-line serial terminals via telnet port 4747. Line printer, 4 mag tapes and console terminal. Terminal wakeup chan is ^G and console wakeup chars are @@A. Install using TSM from console after exiting opcom. Use filemgr to restore files from tape.

           TSM> A3 IN=M91000,TAP
           TSM> A4 SLO=UT
           TSM> FILEMGR
           FIL> RESTORE
           FIL> X

Available Level One Diagnostic boot tape: diag.ini command file to start diags. ./sel32 diag.ini diag.tap bootable level one diagnostic tape w/auto testing. Set cpu type to 32/27, 32/67, 32/87, 32/97, V6 or V9. All cpu models now run all diagnostics except cv.dxp which is used to run level 2 diagnostics. The diag stops at random places after a few characters are entered into the console.

           CV.CSL - Firmware control diag.  Disabled in auto testing.
           CV.CP1 - CPU diag part 1 runs OK.
           CV.CP2 - CPU diag part 2 runs OK.
           CV.CP3 - CPU diag part 3 runs OK.
           CV.EAD - Effective address diag runs OK.
           CV.BRD - Base register instruction diag runs OK, except 32/27.
           CV.INT - Interrupt diag runs OK.
           CV.TRP - Traps diag runs OK.
           CV.CMD - Cache/Shadow diag.  Disabled in auto testing.
           CN.MMM - Non virtual memory diag runs OK.
           VM.MMM - virtual memory diag for V6 & V9 runs OK.
           CV.IPT - IPU trap diag.  Disabled in auto testing.
           CV.CSD - WCS read/write trap diag.  Disabled in auto testing.
           CV.CON - Operators Console runs all tests for all CPUs.

           Set GPR[0] = 0xffffffff before booting from tape to disable the
           auto test and go to the Diagnostic Overlay Loader (DOL>) prompt.
           Testing is extremely difficult without any source for the
           diagnostics.  Updates to follow as tests are corrected.

Available UTX-21a install tape for testing: utxtape1.ini command file to start UTX install tape. ./sel32 utxtape1.ini utx21a1.tap bootable UTX install tape for testing basemode. The current V6 & V9 will boot UTX into single user mode. You can run a small subset of the commands that are on the installation tape. Prep, the disk preparation UTX program, can format a disk drive. Other files systems can be created, but cause the system to hang at various places during the fsck command. All basemode instructions have been tested with the CV.BRD diag. The virtual memory has been fully tested with the VM.MMM diag. UTX needs better support for the disk controller before we can move any farther with the installation.

Other MPX verion support: I am still looking for an MPX 3.X user or master SDT tape. I have much of the source, but no loadable code to create a bootable system. Please keep looking for anyone who can provide these tapes or a disk image of a bootable system..

James C. Bevier 03/30/2020