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pdp-11
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Revengineered ancient PDP-11 CPUs, originals and clones
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Jun 6, 2020 - Verilog
Using the historical unix 2.11 BSD operating system on the PiDP-11. With examples such as cool-retro-weatherstation.
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Feb 1, 2020 - C
PTAP2DXF - Generate CNC-cut paper tapes from .PTAP or other binaries on a home stencil cutting machine
ascii
tape
morse-code
dotnet-core
cutter
retrocomputing
dxf
pdp-11
altair
punch
teletype
simh
inch
baudot
paper-tape
ptap
stencil-cutting-machine
vintage-computers
imsai
minicomputer
asr33
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Mar 26, 2020 - C#
Cross-linker, porting PDP-11 LINK to C/C++, WIP 🚧
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Jan 19, 2020 - C++
TU56 DECtape on-screen emulator for SimH, PiDP-11 and PiDP-8
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Jan 6, 2020 - C
Unix V6 with Arpanet support
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Nov 29, 2018 - C
TU77 magnetic tape on-screen emulator for SimH and PiDP-11
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Jan 1, 2020 - C
code cross-generation for PDP-11 using Python
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Oct 10, 2017 - Python
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Apr 29, 2019 - C
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The MMU should issue an mmu trap if the instruction clearing the 'mmu trap enable' bit (bit 9 in ssr0) itself causes a trap. The 11/70 documentation clearly describes this behavior.
This is the reason why test 063 of the
ekbee1diagnostics currently fails.Since the MMU trap mechanism is is only available on 11/45 and 11/70, but not in the J11, it is not used by common operating systems.