pdp8\/e maintenance manual volume 2 (DEC-8E-HMM2A-D-D)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"The MI8-E is a “hardware bootstrap loader” for a PDP-8\/e. It has a large diode matrix that allows a 32-word bootstrap loader to be effectively coded in as a ROM. A series of wire links are inserted or removed to configure the load and start addresses. I have one of these boards. It came with ..<\/p>\n
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Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3204","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/P7xTsk-PG","jetpack-related-posts":[{"id":3372,"url":"https:\/\/avitech.com.au\/?page_id=3372","url_meta":{"origin":3204,"position":0},"title":"OMNIBUS Bootstrap Loader Prototype v1.0","author":"malcolm","date":"23-July-2018","format":false,"excerpt":"This is my first attempt to build a Bootstrap Loader board for the OMNIBUS. The mode of operation is largely modelled on the MI8-E (M847). I have some more information about a real MI8-E here. The OMNIBUS Bootstrap Loader Prototype v1.0 has been constructed and is working well (July 2018).\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2018\/07\/omnibus-bootloader-300x169.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":3267,"url":"https:\/\/avitech.com.au\/?page_id=3267","url_meta":{"origin":3204,"position":1},"title":"OMNIBUS Bootstrap Loader Project – Design Notes","author":"malcolm","date":"26-April-2018","format":false,"excerpt":"I am in the process of developing a multi-device \"Omnibus Bootstrap Loader\" board. The purpose of this project is to transfer bootstrap loader code into the PDP-8's core memory, using a similar technique to DEC's MI8-E board. This page captures my random thoughts and observations throughout the project. Interfacing to\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3697,"url":"https:\/\/avitech.com.au\/?page_id=3697","url_meta":{"origin":3204,"position":2},"title":"UNIX V6 on QBUS PDP-11","author":"malcolm","date":"17-November-2019","format":false,"excerpt":"I've starting playing around with UNIX v6 on the PDP-11. I'm using the \"v6_rl02_unknown\" image, which is discussed and available for download from https:\/\/github.com\/eunuchs\/unix-archive\/tree\/master\/PDP-11\/Boot_Images. This is an RL02 image. It must have a modified kernel, as apparently V6 was not originally distributed on RL02 media. Hardware The hardware used was\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":709,"url":"https:\/\/avitech.com.au\/?page_id=709","url_meta":{"origin":3204,"position":3},"title":"PDP-11 Paper Tape BASIC","author":"malcolm","date":"3-July-2016","format":false,"excerpt":"Introduction This page provides an overview of PDP-11 paper tape BASIC, and the computer equipment it was typically used with. It then describes how to load and run PDP-11 BASIC on real PDP-11 hardware, and how it can be run instead on a modern Windows-based PC, under the open-source SIMH\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"DEC-11-AJPB-PB","src":"https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2016\/07\/DEC-11-AJPB-PB-300x44.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":2722,"url":"https:\/\/avitech.com.au\/?page_id=2722","url_meta":{"origin":3204,"position":4},"title":"GRC TBC QBUS Board","author":"malcolm","date":"15-October-2017","format":false,"excerpt":"The \"GRC TBC\" is a bootstrap and terminator board designed for PDP-11 QBUS systems. The manufacturer is General Robotics Corporation. The TBC provides the following functionality: Termination for QBUS backplane signals On-board EPROMs (for bootstrap or other purposes) Support for front-panel functionality (run status indicator, enable\/halt switch and LTC switch)\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2017\/10\/grc-tbc-pcb-300x174.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":12693,"url":"https:\/\/avitech.com.au\/?page_id=12693","url_meta":{"origin":3204,"position":5},"title":"PDP-8 notes: Dumprest and paper-tape diagnostics","author":"malcolm","date":"29-June-2025","format":false,"excerpt":"These are my rough notes about using paper-tape diagnostics and dumprest on the PDP-8. This page focuses in particular on using dumprest on a Windows machine in a Cygwin environment. I have a separate page here that provides some tips for setting up Cygwin. Dumprest Dumprest is a series of\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/avitech.com.au\/index.php?rest_route=\/wp\/v2\/pages\/3204","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/avitech.com.au\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/avitech.com.au\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/avitech.com.au\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/avitech.com.au\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3204"}],"version-history":[{"count":18,"href":"https:\/\/avitech.com.au\/index.php?rest_route=\/wp\/v2\/pages\/3204\/revisions"}],"predecessor-version":[{"id":3386,"href":"https:\/\/avitech.com.au\/index.php?rest_route=\/wp\/v2\/pages\/3204\/revisions\/3386"}],"wp:attachment":[{"href":"https:\/\/avitech.com.au\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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