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simh | 8bc | |
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39 | 5 | |
1,614 | 38 | |
0.9% | - | |
8.9 | 0.0 | |
about 1 month ago | over 4 years ago | |
C | C | |
GNU General Public License v3.0 or later | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
simh
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SIMH – Old Computer Emulator
It sounds like there was a config option available to disable the signature addition to the image file ( https://github.com/simh/simh/issues/1059#issuecomment-108689... ). I could see a benefits for having an embedded image signature for preservation and corruption detection issues.
I don't think complaining about the design is toxic, but recruiting uninvolved people on twitter, and harassing out of ban certainly is. Also reading the bug thread it seems the person with the issue wasn't the same as the one who instigated the harasment. (https://github.com/simh/simh/issues/1059#issuecomment-108675...)
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Multics Simulator
Perhaps, however, SIMH (http://simh.trailing-edge.com/, https://opensimh.org/) also calls itself a simulator rather than an emulator. Six of one, half dozen of the other, I guess!
- Mystery? Of the few 1968 Honeywell Kitchen (Pedestal )Computers built, where are they now?
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Winner of the lookalike contest
You can get emulators for the machine: SIMH
- How many platforms do you deal with?
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Anyone know how to attach a network device to a simulated VAX in simh?
I looked into this recently too, given the large amount of instructions at https://github.com/simh/simh/blob/master/0readme_ethernet.txt I decided it was too much bother for now.
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Pico_1140: A PDP11/40 emulator that will run Unix v5/v6 on a Raspberry Pi Pico
In case anyone was wondering:
> The de facto emulator for most old computers is Simh https://github.com/simh/simh. The size and complexity of the individual machine apps is such that a direct port to a memory limited system is not feasible.
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GCC gets a new frontend for Rust
VAX has its die hard fans, and the historical value of the VAX and what it did to shape our computing world can't be overstated. As both a learning tool and a way to preserve history, simh and VAX emulation are wonderfully accessible. VAX running modern NetBSD does an excellent job illustrating where performance regressions happen and where bad assumptions are made. None of these are compelling reasons to target a new toolchain to a classic architecture by themselves, but the interest is there.
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Zork compiled from MDL source code
A long time ago you posted a suggestion in the original SIMH GitHub as an issue to have Interlan NI1010A added. https://github.com/simh/simh/issues/380
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The IBM 701
https://github.com/simh/simh
Richard Cornwell has implemented the IBM 701, IBM 704, IBM 7010/1410, IBM 7070/7074, IBM 7080/702/705/7053 and IBM 7090/7094/709/704 simulators.
8bc
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Is it me or is Grub2 outputting "GRUB" on error the worst thing in software design ever?
I have written quite a bit of PDP-8 code, including a B compiler. I also do size coding; believe me when I say that space is tight in an MBR. You should really try it for yourself! It's surprisingly hard to fit more than the bare minimum into it.
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Early version of the very first c compiler
I agree with /u/kotzkroete, it's a fun project to do. I've done so too.
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Simulating PDP-8 basic computer
Simulating a basic PDP-8 is pretty easy. I've not done that before, but I've written a B compiler for it before and that B compiler has some of the logic you need to simulate a PDP-8.
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how were arrays used in B and BCPL?
I've written a B compiler in 2019 and can confirm that this is exactly how it works.
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Would it be worth it learning very little of binary/machine language directly?
Note that the PDP-8 is traditionally programmed by switches on the front panel or by punched tape. A good simulator can be found in the SIMH collection. I've previously written a B compiler for the same system.
What are some alternatives?
AppleWin - Apple II emulator for Windows
grub2 - Ongoing downstream work on grub2, including Fedora and RHEL. ***This is not upstream; please send code upstream first***
windows
unix-history-repo - Continuous Unix commit history from 1970 until today
GW-BASIC - Assembling Microsoft GW-BASIC from 1983, with MASM or JWasm • "pre-release" binaries at https://codeberg.org/tkchia/GW-BASIC/releases • source mirror of https://codeberg.org/tkchia/GW-BASIC • fork of https://github.com/dspinellis/GW-BASIC
b - B compiler
GW-BASIC - The original source code of Microsoft GW-BASIC from 1983
Pico_1140 - A PDP11/40 emulator that will run Unix v5/6
Arduino - Arduino IDE 1.x
GW-BASIC - Assembling Microsoft GW-BASIC from 1983
KallistiOS - A pseudo-operating system for the Sega Dreamcast. This repository is a mirror of the official SourceForge repository for KOS.
cargo-gccrs - Gaining support for cargo via rustc-wrapper