pdp11.jl
ok
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pdp11.jl
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Ngn/k (free K implementation)
- No debugging at all. You run the code and pray for the best.
A year after we started my classmate decided to drop the project since he felt he couldn't keep up with the complexity: each line of code was non-trivial and really hard to understand.
Eventually we had to rewrite the whole project because GNUs interpreter didn't support big integers, and trying to circumvent that resulted in very poor performance. The new version was written in Julia (https://github.com/emlautarom1/Julia_Simulator), so we were able to reuse a lot of "array code". The project got cancelled in the middle of the rewrite and we kind of forgot about it.
ok
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Decker: A fantastic reincarnation of HyperCard with 1-bit graphics
Note that the author also made a k interpreter [0] which has a graphical env to play around with as well.
[0] https://github.com/JohnEarnest/ok
- Trees
- Programming in K
- k on pdp11
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Origins of J
This - https://github.com/JohnEarnest/ok - can also be used sometimes...
- Trees in K
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Coding in the Shadows: Hidden Gems of Lisp, Clojure, and friends
If you want to try out K, there are some open source implementations, like John Earnest's oK which has a REPL and a calculator-like interface for mobile phones with a charting feature.
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Why Lisp Syntax Works
and have the programmer use the word "barchart", they instead prefer to use the definition itself. The word "barchart" has a specific meaning (here, an ascii "bar chart" of 0s and 1s, showing the relative sizes of the values of input array x), but "{x>\:!|/x}" might be useful for more than just bar charts. This idiom contains smaller idioms like "count til max" (!|/) which in turn contains "max" (|/).
Being able to see the code makes it easier to explore and tweak to your specific needs. But more importantly, there are no "official" names for concepts like "count til max". That's just my personal name for it. A python programmer would call it "range". You could come up with your own name for (!|/) that makes perfect sense to you. But that name will probably be longer than its definition, and less flexible.
[1] https://github.com/JohnEarnest/ok/blob/gh-pages/examples/idi...
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Animated unknown pleasures in 3 lines of K
check out oK[0] by John Earnest, who is the author of the content of this post
it is well-written manual and is a great jumping off point
there is a k-enthusiast element.io server[1] where you can ask any question you like. folks are friendly!
[0] https://github.com/JohnEarnest/ok
[1] https://matrix.to/#/#aplfarm-k:matrix.org
What are some alternatives?
Kbd - Alternative unified APL keyboard layouts (AltGr, Backtick, Compositions)
weblog - a weblog
kona - Open-source implementation of the K programming language
PDP_11_Simulator - PDP11 Simulator written in APL
Co-dfns - High-performance, Reliable, and Parallel APL
kerf1 - Kerf (Kerf1) is a columnar tick database and time-series language for Linux/OSX/BSD/iOS/Android. It is written in C and natively speaks JSON and SQL. Kerf can be used for trading platforms, feedhandlers, low-latency networking, high-volume analysis of realtime and historical data, logfile processing, and more.
Pilot - Orca's best friend.
brs - An interpreter for the BrightScript language that runs on non-Roku platforms.
april - The APL programming language (a subset thereof) compiling to Common Lisp.
hackernews - Hacker News web site source code mirror.
pynapl - Dyalog APL ←→ Python interface