aap_

31 ms·

331.
by aap_ 9y ago
> The first version of Unix was designed to run on a machine with in 24KB (that's kilobytes) of core memory The very first of UNIX actually ran on a machine that couldn't even address that much memory, the PDP-7 has 13 bit addr
332.
by aap_ 9y ago
mksh: docker: not found I see no reason to install docker to run simh when you can just install simh to run simh.
333.
by aap_ 9y ago
Yeah nice, but why use docker?!
334.
by aap_ 9y ago
The PiDP-11 is using simh already. I'm currently putting together a museum of PDP-11 UNICes for it. Although since the target is an 11/70 I'm not so sure we'll have v1.
335.
by aap_ 9y ago
I really like td's style of writing C. You can find some of his code here: http://www.iq0.com/duffgram/index.html
336.
by aap_ 9y ago
None of these are reasons one should consider it a creole language. It may have been influenced by other languages, but that doesn't make it a creole.
337.
by aap_ 9y ago
No, it's still Germanic. It just got a lot of loan words.
338.
by aap_ 9y ago
I actually thought about writing a tutorial on how to write a complete "classic" LISP implementation. I know there are already hundreds of toy LISP tutorials but having LISP 1.5 as a goal and implementing it in much the same way i
339.
by aap_ 10y ago
These are the operating systems the Blit ( https://www.youtube.com/watch?v=Pr1XXvSaVUQ ) was used with.
340.
by aap_ 10y ago
V8 runs in simh. I don't have installation instructions though :/
341.
by aap_ 10y ago
https://news.ycombinator.com/item?id=13971909 :)
342.
by aap_ 10y ago
Get them here: http://www.tuhs.org/Archive/Distributions/Research/
343.
Research Unix V8, V9 and V10 made public by Alcatel-Lucent [pdf](media-bell-labs-com.s3.amazonaws.com)
10 points by aap_ 10y ago|3 comments
344.
by aap_ 10y ago
The original UNIX ran on a PDP-7, which didn't have bytes. The memory was 8k of 18 bit words.
345.
by aap_ 10y ago
You don't even need a special option, just do rm ./-filename
346.
by aap_ 10y ago
> Writing a shell script that wants to read passwords? cat a file which disables input echoing. After invoking readline, cat a different file to re-enable it. "Feature". Sending control characters to the tty won't do that.
347.
by aap_ 10y ago
The digits and letters actually map quite nicely to punch cards. You can see how punches 0 - 9 map exaclty to EBCDIC F0-F9. And if you check how the letters are coded on punch cards (1 - 9 plus one punch "above" in the zone and 0
348.
by aap_ 10y ago
The ASR-33 even had [ \ ] ^ _ available only via shift + K L M N O. This is called a bit-paired keyboard.
349.
by aap_ 10y ago
Here is a nice history of ASCII: https://github.com/ericfischer/ascii
350.
by aap_ 10y ago
Or, you know, just build from this github repo.
351.
by aap_ 10y ago
For those wondering what ITS is. It's an operating system that was developed at MIT for the PDP-6 and later PDP-10 starting in the mid 60s. The last ITS system was shut down in 1990. A very cool thing about ITS is that DDT, the debugge
352.
by aap_ 10y ago
And yet he doesn't know the PDP-11 is an octal machine even though it's 16 bits.
353.
by aap_ 10y ago
It is the right way. Different terminals require different line endings and abstracting that to a single new line character makes sense. The UNIX tty driver then translates that new line character to what is appropriate to start a new lin
354.
by aap_ 10y ago
Who says you can't run the code? Sure, few people have a real PDP-11/{40,45,70} these days but if you only care about the software using an emulator is perfectly acceptable.
355.
by aap_ 10y ago
The other comments already explained it. I just wanted to add that we use <> to notate writing, so <þ> is the letter þ, not the sound. /þ/ and [þ] are the phoneme and the sound þ respectively (I don't want to go i
356.
by aap_ 10y ago
There are a few points wrong in this article. First of all the <y> of <ye> does not come from <ð> but from <þ>. Secondly in Old English the letters þ and ð are used promiscuously, voicing has nothing to do with it. I
357.
by aap_ 10y ago
I don't see an explanation of this comment at all. I don't think it's the context switching in general that we're not expected to understand, since it's pretty much the same in v7 but the comment is gone. Dmr actual
358.
by aap_ 10y ago
> CAR, CDR, RPLACA etc were machine instructions. Gordon Bell and Alan Kotok designed the -10 (and its predecessor the PDP-6) with Lisp in mind. The first Lisp Machines. The Stanford PDP-6 apparently even had a CONS instruction at opcode
359.
by aap_ 10y ago
> I program a UNISYS 2200 mainframe at work. This sounds awesome. I had no idea UNIVAC is still alive.
360.
by aap_ 10y ago
No. There's no way any Bell Labs UNIX could conform to either POSIX or SUS.

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