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0ed44354b5
SEL32: Add debug dump memory functions. SEL32: Correct line count in sel32_lpr.c. SEL32: Correct BSR/BSF code in sel32_mt.c for MPX3X SDT handling. SEL32: General cleanup/speedup of sel32_mt.c code. SEL32: Add master SDT tape creation in taptools/mkvmtape.c. SEL32: Fix EOF detection code in taptools/tapdump.c.
117 lines
6.3 KiB
Markdown
117 lines
6.3 KiB
Markdown
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# SEL32 Concept/32 Simulator
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This is a working simulator for the SEL Concept/32 computer. The
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current version is for the SEL 32/27, 32/67, 32/77, 32/87, 32/97, V6,
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and V9 computers. All of the processors except for the 32/77 can run
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the Gould diags. Operational support for the 32/77 computers may be
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added in the future.
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# SEL Concept/32
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This simulator is capable of running UTX2.1A, UTX2.1B, MPX 1.5F, MPX 3.4,
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MPX 3.5, and MPX 3.6. It is capable of creating a disk image for the
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O/S from a UTX or MPX SDT tape. The disk image can be booted, initialized,
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and can run many of the UTX and MPX utilities and programs. Ethernet is
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supported on UTX and will be added to MPX in the future. Eight terminals
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can be used to access MPX or UTX via Telnet port 4747. The sumulator has
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support for excess 64 floating point arithmetic and passes the 32/27 and
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32/67 FP diags. UTX is the SEL version of System V Unix and BSD Unix
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ported to the V6 and V9 processors. UTX utilizes the basemode instruction
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set and a virtual memory system supported by the V6 & V9 CPUs. The system
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needs further testing to solidify the SEL32 simulator code in all of the
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supported environmenets.
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The sim32disk.gz file is a prebuilt MPX 1.5F system disk. It can be
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uncompressed and booted with the sel32.27.sim32.disk.ini initialization
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file. The sim32sdt.tap.gz file can also be uncompressed and started with
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the sel32.27.sim32.tape.ini initialization file to do a sdt install to
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disk from tape. There are three test versions of UTX. Utxtest1a.ini,
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utxtest1b.ini, utxtest1c.ini are three initialization files to build a
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UTX 2.1A system. Utxtest1a.ini builds and loads the root filesystem on
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/dev/dk0a. Utxtest1b.ini boots the new root file system from disk and
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builds the usr file system on /dev/dk0d. Utxtest1c.ini boots the UTX
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system from disk and enters multi-user mode. Utxtest2[a-c].ini files
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do the same thing for UTX 2.1B. Utxscsi[a-c].ini builds a MFP SCSI disk
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UTX 2.1B system. These files are only available from my sims project at
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https://github.com/AZBevier/sims. A MPX 3.X test version will be added
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in the future when testing is complete.
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Available tap tools in taptools directory:
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./taptools - set of tools to work with .tap formatted tapes. Also tools
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to convert between MPX and UNIX file formats. See README
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file and source for descriptions.
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Available disk images:
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sim32disk.gz - bootable 300mb disk with MPX1.5F installed. Unzip before
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any attempt to use it. Use sel32.27.sim32.disk.ini command
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file to start MPX 1.5. Type "./sel32 sel32.27.sim32.disk.ini"
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Available configuration SDT tapes:
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sim32sdt.tap - MPX 1.5f user SDT install tape. Uses 300mb disk, IOP 8-line
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serial terminals via telnet port 4747. Line printer, 4 mag
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tapes and console terminal. Terminal wakeup chan is ^G and
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console wakeup chars are @@A. Install using TSM from console
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after exiting opcom. Use filemgr to restore files from tape.
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TSM> A3 IN=M91000,TAP
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TSM> A4 SLO=UT
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TSM> FILEMGR
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FIL> RESTORE
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FIL> X
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Available Level One Diagnostic boot tape in tests directory:
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diag.ini - command file to start diags. Type "./sel32 tests/diag.ini"
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diag.tap - bootable level one diagnostic tape w/auto testing.
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Set cpu type to 32/27, 32/67, 32/87, 32/97, V6 or V9. All
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cpu models now run all diagnostics provided on the
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diagnostic tape. Running DEXP stand alone causes input
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to stop after a few characters are entered. More testing
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is still required.
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CV.CSL - Firmware control diag. Disabled in auto testing.
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CV.CP1 - CPU diag part 1 runs OK.
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CV.CP2 - CPU diag part 2 runs OK.
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CV.CP3 - CPU diag part 3 runs OK.
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CV.EAD - Effective address diag runs OK.
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CV.BRD - Base register instruction diag runs OK, except 32/27.
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CV.INT - Interrupt diag runs OK.
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CV.TRP - Traps diag runs OK.
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CV.CMD - Cache/Shadow diag. Disabled in auto testing.
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CN.MMM - Non virtual memory diag runs OK.
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VM.MMM - Virtual memory diag for V6 & V9 runs OK.
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CV.IPT - IPU trap diag. Disabled in auto testing.
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CV.CSD - WCS read/write trap diag. Disabled in auto testing.
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CV.CON - Operators Console runs all tests for all CPUs.
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CV.DXP - Diagnostic executive for level 2 diags. OK in batch.
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67.FPT - Level two floating point diag runs under DXP OK.
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CV.ITD - Level two interval timer diag runs under DXP OK.
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Set GPR[0] = 0xffffffff before booting from tape to disable the
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auto test and go to the Diagnostic Overlay Loader (DOL>) prompt.
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Testing is extremely difficult without any source for the
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diagnostics. Updates to follow as tests are corrected.
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Available UTX-21a install tape for testing:
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utxtest1a.ini command file to start UTX install tape. "./sel32 utxtest1a.ini"
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utx21a1.tap bootable UTX install tape for testing basemode. The current
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V6 & V9 will boot UTX into single/multi user mode. You can run
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the full set of the commands that are on the installation tapes.
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Prep, the disk preparation UTX program, can format a disk
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drive. Other file systems can be created and saves restored.
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All basemode instructions have been tested with the CV.BRD diag.
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The virtual memory has been fully tested with the VM.MMM diag.
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Other MPX verions support:
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I have recently received some old MPX 3.X save tapes. Using these
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I have been able to hand build a MPX3.6 SDT tape that can be used
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to install MPX3.6. Once installed, the system can be used to build
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a new user SDT tape and install it elsewhere. Both based and non-
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based O/S images can be created. More images for installation will
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be made available in the future as I work my way through the save
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tapes.
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James C. Bevier
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06/20/2021
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