Pdp-8/e emulator. Contribute to wvdmark/pdp8 development by creating an account on GitHub.
MAINDECs passed by the PDP-8/E Simulator
Most of the MAINDEC hardware diagnostic programs do not depend on exacttiming and can be run successfully on slow Macintoshs or with the simulatedPDP-8/E running as fast as possible. In case of doubt, the MAINDEC passeswith the PDP-8/E and the I/O devices set to run with real time speed runningon a sufficiently fast Macintosh (that is a 140 MHz Power Mac for the PDP-8/E Simulator 1.x version or a Mac with an Intel Core 2 Duo CPU for the 2.x version).
Serval of the hardware diagnostics create pretty patterns in the PDP-8 memory, as seen in the Memory Content plug-in window of the PDP-8/E Simulator. Some screenshots of this window are attached to this page.
- Spin off: PDP-8/e for the RealConsole. This page is written in a chronological sequence, as the project evolved. That means that a finished job, for example the mechanical construction of the pdp8/e simulator, is not a complete chapter but consists of several snippets scattered 'all over the place'.
- The simulator fetches instructions and then executes them. All PDP-8 instructions occupy a single twelve-bit word. Of an instruction identify one of eight instructions. Six of the instructions operate on memory locations addressed by the remainder of the instruction word.
- The PDP-8/E Simulator is an emulator for the Digital Equipment Corporation PDP-8/E minicomputer, a famouse computer of the early 1970 years. The simulator, first released 1994, provides a.
KE8-E CPU
MAINDEC-8E-D0AB-PBInstruction Test Part 1 (Binary)MAINDEC-8E-D0AB-D Instruction Test Part 1 (Documentation)
MAINDEC-8E-D0BB-PBInstruction Test Part 2 (Binary)
MAINDEC-8E-D0BB-D Instruction Test Part 2 (Documentation)
MAINDEC-8E-D0CC-PBAdder Test (Binary)
MAINDEC-8E-D0CC-D Adder Test (Documentation)
From a note of Bob Supnik: Start at 0200 with SR=0000.Runs about 35 minutes without any output until the very end (unless error).Then prints as an acceptance indicator on the console:
MAINDEC-8E-D0DB-PBRandom AND Test (Binary)
MAINDEC-8E-D0DB-D Random AND Test (Documentation)
MAINDEC-8E-D0EB-PBRandom TAD Test (Binary)
MAINDEC-8E-D0EB-D Random TAD Test (Documentation)
MAINDEC-8E-D0FC-PBRandom ISZ Test (Binary)
MAINDEC-8E-D0FC-D Random ISZ Test (Documentation)
MAINDEC-8E-D0GC-PBRandom DCA Test (Binary)
MAINDEC-8E-D0GC-D Random DCA Test (Documentation)
MAINDEC-8E-D0HC-PBRandom JMP Test (Binary)
MAINDEC-8E-D0HC-D Random JMP Test (Documentation)
MAINDEC-8E-D0IB-PBBasic JMP-JMS Test (Binary)
MAINDEC-8E-D0IB-D Basic JMP-JMS Test (Documentation)
MAINDEC-8E-D0JC-PBRandom JMP-JMS Test (Binary)
MAINDEC-8E-D0JC-D Random JMP-JMS Test (Documentation)
MAINDEC-8E-D1AA-PBMM8E 4K Memory Checkerboard (Binary)
MAINDEC-8E-D1AB-D MM8E 4K Memory Checkerboard (Documentation)
MAINDEC-8E-D1EC-PBMemory Address Test (Binary)
MAINDEC-8E-D1EC-D Memory Address Test (Documentation)
MAINDEC-8E-D1GB-PBPDP-8/E Memory Power On/Off Test (Binary)
MAINDEC-8E-D1GB-D PDP-8/E Memory Power On/Off Test (Documentation)
The PDP-8/E Simulator version 1.3 (or later) passes this test“better” than a hardware PDP-8/E. After turning off the PDP-8/Ewith the power key of the KC8-EA Console, the simulator quits. Afterrestarting the simulator, you only must operate the continue key of theconsole, you need not to load restart address 0201 because the simulatornot only preserves the memory content, but the register content, too.(With older versions of the simulator, you must save the configurationexplicitly because they do not save the current PDP-8/E state in thepreferences file of the simulator automatically.)
KM8-E Memory Extension
MAINDEC-8E-D1BB-PBKM8-E 4K Extended Memory Checkerboard (Binary)
MAINDEC-8E-D1BB-D KM8-E 4K Extended Memory Checkerboard (Documentation)
The original documentation is not available. Set SR9-11 to the number of memory fields to check. After each successful cycle, the digit “5” is printed on the teletype. Set SR5 or SR4 to halt the test and set SR3 to avoid relocating of the program.
MAINDEC-8E-D1FB-PBPDP-8/E Extended Memory Address Test (Binary)
MAINDEC-8E-D1FB-DPDP-8/E Extended Memory Address Test (Documentation)
MAINDEC-8E-D1HA-PBPDP-8/E Memory Extension and Timeshare Test (Binary)
MAINDEC-8E-D1HA-DPDP-8/E Memory Extension and Timeshare Test (Documentation)
Thanks to Willem van der Mark for the scan of his original documentation.
KE8-E Extended Arithmetic Element
MAINDEC-08-DHKEA-A-PBKE8-E EAE Extended Memory Exerciser (Binary)MAINDEC-08-DHKEA-A-DKE8-E EAE Extended Memory Exerciser (Documentation)
MAINDEC-8E-D0LB-PBKE8-E EAE Instruction Test Part 1 (Binary)
MAINDEC-8E-D0LB-DKE8-E EAE Instruction Test Part 1 (Documentation)
MAINDEC-8E-D0MB-PBKE8-E EAE Instruction Test Part 2 (Binary)
MAINDEC-8E-D0MB-DKE8-E EAE Instruction Test Part 2 (Documentation)
RK8-E Disk Cartridge System
Note that the following paper tapes MAINDEC-08-DHRKA-B-PB,MAINDEC-08-DHRKB-E-PB, MAINDEC-08-DHRKC-H-PB and MAINDEC-08-DHRKD-A-PB contain someASCII text before the leader that must be overread before they can be loaded withthe BIN loader.MAINDEC-08-DHRKA-B-PBRK8-E Diskless Control Test (Binary)
MAINDEC-08-DHRKA-E-D RK8-E Diskless Control Test (Documentation)
A table fortranslating the addresses from the listing of the E version documentationto the B version binary.
MAINDEC-08-DHRKB-E-PBRK8-E Disk Drive Control Test (Binary)
MAINDEC-08-DHRKB-G-D RK8-E Disk Drive Control Test (Documentation)
When PDP-8/E Simulator 1.x runs with PDP-8/E real time speed, this MAINDEC sometimeshalts with a STATUS REGISTER ERROR at PC:2054 in TST28, the consecutivesector timing test, or at PC:2132 in TST29, the non-consecutivesector timing test. The tests use a 2.5 ms resp. 40 ms delay loop to checkif the READ ALL and WRITE ALL commands are able to act on two consecutivesectors and to check if the READ and WRITE commands need a complete diskrevolution (that takes 40 ms) to access consecutive sectors. The internaltiming of the simulator is not precise enough to always meet this conditions.The faster the Mac is, the more likely these tests pass.PDP-8/E Simulator 2.x runs this test without any problems.
A tablefor translating the addresses from the listing of the G versiondocumentation to the E version binary.
MAINDEC-08-DHRKC-H-PBRK8-E/RK8-L Data Reliability Program (Binary)
MAINDEC-08-DHRKC-H-D RK8-E/RK8-L Data Reliability Program (Documentation)
This MAINDEC runs about 16 hours for an RK8-E with four RK05 drives.
MAINDEC-08-DHRKD-A-PBRK8-E/RK8-L Disk Formatter Program (Binary)
MAINDEC-08-DHRKD-D-D RK8-E/RK8-L Disk Formatter Program (Documentation)
TC08 DECtape System
Note that the TC08 DECtape Controller Maintenance Manual (table 4-1 on page 4-5) explicitly lists these TC01 MAINDECs for use with the TC08.MAINDEC-08-D3BC-PB TC01 Basic Exerciser
MAINDEC-08-D3BB-DTC01 Basic Exerciser (Documentation)
MAINDEC-08-D3EB-PBTC01 Extended Memory Exerciser
MAINDEC-08-D3EB-DTC01 Extended memory Exerciser
MAINDEC-08-D3RA-PBDECTREX 1 TC01 Random Exerciser
MAINDEC-08-D3RA-DDECTREX 1 TC01 Random Exerciser (Documentation)
Thanks to Volker Hermann for providing the scan of the DECTREX 1 documentation and thanks to Vincent Slyngstad for hosting it on his site.
DEC-08-EUFB-PBTC01-TU55 DECtape Formatter
DEC-08-EUFB-DTC01-TU55 DECtape Formatter (Documentation)
The DECtape Formatter is very timing critical. Even when the timing precision of the PDP-8/E Simulator is set to a small value, not every run of the formatter succeeds with a correctly formatted DECtape.
PC8-E High Speed Paper Tape Reader & Punch
MAINDEC-08-DHPCAB-PBPC8-E Paper Tape Reader & Punch Diagnostics (Binary)MAINDEC-08-DHPCAB-DPC8-E Paper Tape Reader & Punch Diagnostics (Documentation)
This is the PC8-E Diagnostics restored by Willem van der Mark, the original DEC version is available on his tests page, too.To run it, three test tapesMAINDEC-00-D2G1, MAINDEC-00-D2G2 andMAINDEC-00-D2G4 are required.This test only runs with PDP-8/E Simulator 2.x, not with the old 1.x version.
DK8-EA and DK8-EC Real Time Clock
MAINDEC-8E-D8AC-PBDK8-E Clocks Diagnostics (Binary)Pdp 8 Simulator
MAINDEC-8E-D8AC-D DK8-E Clocks Diagnostics (Documentation)
With PDP-8/E Simulator 1.x, for all kinds of real time clocks,this MAINDEC halts at various tests because the timing resolutionof the simulator is not precise enough to match the clock frequencies. PDP-8/E Simulator 2.2 passes this MAINDEC for all clock speeds.(In case of doubt, a fast multi-core Mac passes the timing tests better whenall but two cores are turned offline using the “cpuctl” utility.)
DKC8-AA Real Time Clock
MAINDEC-08-DJDKA-B-PBDKC8-AA Option Test #1 (Binary)MAINDEC-08-DJDKA-B-DDKC8-AA Option Test #1 (Documentation)
PDP-8/E Simulator 2.2 only has the clock of the DKC8-AA I/O option board, so it only passes the Real Time Clock Timing Test (section 4.6).
TSC8-75 Board
TSC8.SV V2.003 TSC8-75 Hardware Diagnostic (Binary)TSC8.SV V2.003 TSC8-75 Hardware Diagnostic (Documentation)
Pdp-8/e Simulator
The binary can be found on the ETOS system disk and the documentation in theETOS manuals, see here.
| Bernhard Baehr | 09.11.2020 20:00:00 |