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layout: page
title: DEC PDP-11 Diagnostic Publications
permalink: /pubs/dec/pdp11/diags/
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DEC PDP-11 Diagnostic Publications
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PDPjs development and testing relied on the following PDP-11 diagnostic publications:

- [MAINDEC-11-DZQAB MAINDEC USER REFERENCE MANUAL (Oct 1973)](http://archive.pcjs.org/pubs/dec/pdp11/diags/MAINDEC-11-DZQAB-B-D_User_Reference_Manual_Oct73.pdf)
- [MAINDEC-11-DCQKC 11/40 and 11/45 INSTRUCTION EXERCISER (Sep 1974)](http://archive.pcjs.org/pubs/dec/pdp11/diags/MAINDEC-11-DCQKC-D-D_1140_1145_INSTRUCTION_EXERCISER_Sep74.pdf)
- [MAINDEC-11-DZQXA XXDP USER MANUAL (Jul 1976)](http://archive.pcjs.org/pubs/dec/pdp11/diags/MAINDEC-11-DZQXA-I-D_XXDP_User_Manual_Jul76.pdf)
- [CEKBAD0 11/70 CPU #1 (May 1980)](http://archive.pcjs.org/pubs/dec/pdp11/diags/AH-7963D-MC_CEKBAD0_1170_CPU_1_May80.pdf)
- [CEKBBF0 11/70 CPU #2 (May 1980)](http://archive.pcjs.org/pubs/dec/pdp11/diags/AH-7968F-MC_CEKBBF0_1170_CPU_2_May80.pdf)
- [CEKBEE0 11/70 MEM MGMT (May 1980)](http://archive.pcjs.org/pubs/dec/pdp11/diags/AC-7975E-MC_CEKBEE0_1170_MEM_MGMT_May80.pdf)

The *MAINDEC-11-DZQAB MAINDEC USER REFERENCE MANUAL (Oct 1973)* was particularly useful for understanding DEC's
[Paper Tape Diagnostics](/apps/pdp11/tapes/diags/).

The *MAINDEC-11-DCQKC 11/40 and 11/45 INSTRUCTION EXERCISER (Sep 1974)* document was useful for understanding DEC's
[11/70 CPU EXERCISER](/apps/pdp11/tapes/diags/#md-11-1170-cpu-exerciser).

### Non-DEC Publications

- [PDP-11 DIAGNOSTIC HANDBOOK (1988)](http://archive.pcjs.org/pubs/dec/pdp11/diags/PDP11_DiagnosticHandbook_1988.pdf)
- [Notes for XXDP+ and XXDP V2 Operating Systems (Feb 1993)](http://archive.pcjs.org/pubs/dec/pdp11/diags/XXDP_Notes_Feb93.pdf)