[erlang-questions] Pmods, packages, Unicode source code and column numbers in compiler - what will happen in R16?

Håkan Huss <>
Wed Oct 17 13:09:47 CEST 2012


On Wed, Oct 17, 2012 at 12:53 PM, Robert Virding
<> wrote:
>
> ----- Original Message -----
>> From: "Raimo Niskanen" <>
>> Sent: Wednesday, 17 October, 2012 11:36:19 AM
>>
>> On Tue, Oct 16, 2012 at 03:33:54PM +0100, Ian wrote:
>> > On 16/10/2012 15:25, Raimo Niskanen wrote:
>> > >If you have Latin-1 (8-bit ASCII) source code with codes > 255 it
>> > >is safest to
>> > >add an encoding comment.
>> > I think  you meant > 127 :)
>>
>> I was off by one. Thank you very much.
>>
>> >
>> > Getting a byte > 255  would be a fine trick if you could do it.
>> >
>>
>> All I need is some weird system with 9-bit bytes...
>
> The old PDP 10 had 36-bit words and in some uses (emacs) had 9-bit bytes, 4 to a word. IIRC the standard was 5 7-bit bytes but I can't remember how the last bit was used. I think this was continued into the Lisp-machines, at least the space-cadet kbd had lots of extra qualifiers: the "normal" ctrl, the META which set the 8th bit, another CTRL which set the 9th bit, and a HYPER and SUPER which I can't remember what they set.
>
And 6-bit bytes (SIXBIT) were used for e.g., file names.

Ah, the memories of trying to get a grip on what the ADJPB (adjust
byte pointer) instruction really did... :-)

/Håkan

> Robert
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