OK, what was the standard (if there was one) number-base syntax for PDP-11
assembler?
Despite all the PDP-11 assembly info on web sites, this seems to be a buried
bit of info.
One assembler doc uses a prefix of "&o", another specifies octal as default and
prefix of zero for decimal (opposite of
On 1/8/2017 9:10 PM, Brent Hilpert wrote:
OK, what was the standard (if there was one) number-base syntax for PDP-11
assembler?
Despite all the PDP-11 assembly info on web sites, this seems to be a buried
bit of info.
One assembler doc uses a prefix of "&o", another specifies octal as default
> On Jan 9, 2017, at 12:38 AM, Don North wrote:
>
> On 1/8/2017 9:10 PM, Brent Hilpert wrote:
>> OK, what was the standard (if there was one) number-base syntax for PDP-11
>> assembler?
>>
>> Despite all the PDP-11 assembly info on web sites, this seems to be a buried
>> bit of info.
>> One a
wow ... the memories ... someday I've got to get a PDP-11 again :-).
had most of the opcodes memorized, for a story
Had a coworker who played the piano, he could enter/patch code from
the 11/35's panel from memory so fast all you saw was a blur.
When we replacing the 11/35's with 11/34A he
On 2017-Jan-09, at 6:27 AM, Pete Lancashire wrote:
> wow ... the memories ... someday I've got to get a PDP-11 again :-).
>
> had most of the opcodes memorized, for a story
>
> Had a coworker who played the piano, he could enter/patch code from
> the 11/35's panel from memory so fast all you
> From: Brent Hilpert
One assembler doc uses a prefix of "&o"
> So the answer is, by modern expectations the old standard would be
> ambiguous or misleading.
Well, the ideas of 'assembler' and 'standard' don't really go together in my
mind... :-)
But seriously, I don't know
Noel Chiappa wrote:
> Well, technically, DEC had PAL-11 and MACRO-11, but PAL-11 was
> basically a subset of MACRO-11, and used the same number syntax.)
I've been wondering about this!
What's the difference between PAL-11 and MACRO-11?
There's PAL III, PALX, PAL-D, PAL-8, PAL-10, and MACRO-8 for
> From: Lars Brinkhoff
> What's the difference between PAL-11 and MACRO-11?
Without going through the manuals at length, basically MACRO-11 supports
macros, and PAL-11 doesn't. The syntax is otherwise very similar.
> PALX is also the name for a cross assembler targeting PDP-11.
I kn
Noel Chiappa wrote:
> > What's the difference between PAL-11 and MACRO-11?
> Without going through the manuals at length, basically MACRO-11 supports
> macros, and PAL-11 doesn't. The syntax is otherwise very similar.
So I wonder if this holds true in general, PAL are simpler assemblers
withou
I've always assumed the P in PAL was for paper tape.
The Wikipedia artile for PDP-8 says that PAL-8 assembled from paper
tape into memory, so the A and L could have been for Assembler and Loader.
ISTR PAL-11A was also an "absolute" assembler (did not output REL
files), but there was also a PAL-11
> On Jan 10, 2017, at 11:37 AM, Phil Budne wrote:
>
> I've always assumed the P in PAL was for paper tape.
>
> The Wikipedia artile for PDP-8 says that PAL-8 assembled from paper
> tape into memory, so the A and L could have been for Assembler and Loader.
Could be. I took it to be PDP11 Assem
> On Jan 10, 2017, at 8:03 AM, Noel Chiappa wrote:
>
>> From: Brent Hilpert
>
> One assembler doc uses a prefix of "&o"
>
>> So the answer is, by modern expectations the old standard would be
>> ambiguous or misleading.
>
> Well, the ideas of 'assembler' and 'standard' don't really go tog
> From: Phil Budne
> I've always assumed the P in PAL was for paper tape.
> The Wikipedia artile for PDP-8 says that PAL-8 assembled from paper
> tape into memory, so the A and L could have been for Assembler and
> Loader.
I have a number of different versions of the "PDP-11 P
> From: Paul Koning
> Is that the Unix assembler convention?
Yup. From "Unix Assembler Reference Manual" (by DMR; no date, but the one I'm
looking at came with V6): "An octal constant consists of a sequence of digits
... A decimal constant consists of a sequence of digits terminated by a
Noel Chiappa wrote:
> > From: Phil Budne
> > I've always assumed the P in PAL was for paper tape.
> > The Wikipedia artile for PDP-8 says that PAL-8 assembled from paper
> > tape into memory, so the A and L could have been for Assembler and
> > Loader.
>
> I have a number of di
On 2017-Jan-10, at 5:03 AM, Noel Chiappa wrote:
>> From: Brent Hilpert
> One assembler doc uses a prefix of "&o"
>>
>> So the answer is, by modern expectations the old standard would be
>> ambiguous or misleading.
>
> Well, the ideas of 'assembler' and 'standard' don't really go together in m
On 2017-Jan-10, at 5:03 AM, Noel Chiappa wrote:
>> From: Brent Hilpert
> One assembler doc uses a prefix of "&o"
>>
>> So the answer is, by modern expectations the old standard would be
>> ambiguous or misleading.
>
> Well, the ideas of 'assembler' and 'standard' don't really go together in m
On 2017-Jan-10, at 5:03 AM, Noel Chiappa wrote:
>> From: Brent Hilpert
> One assembler doc uses a prefix of "&o"
>>
>> So the answer is, by modern expectations the old standard would be
>> ambiguous or misleading.
>
> Well, the ideas of 'assembler' and 'standard' don't really go together in m
> I've never heard of that '&o' bizzaro-stuff - where did you find that?
This one:
http://mdfs.net/Software/PDP11/Assembler/AsmPDP.txt
Reading more closely, the encoding has some relation back to BBC BASIC.
I was beginning to wonder if it was some html character-encoding screwup.
> I've never heard of that '&o' bizzaro-stuff - where did you find that?
This one:
http://mdfs.net/Software/PDP11/Assembler/AsmPDP.txt
Reading more closely, the encoding has some relation back to BBC BASIC.
I was beginning to wonder if it was some html character-encoding screwup.
> I've never heard of that '&o' bizzaro-stuff - where did you find that?
This one:
http://mdfs.net/Software/PDP11/Assembler/AsmPDP.txt
Reading more closely, the encoding has some relation back to BBC BASIC.
I was beginning to wonder if it was some html character-encoding screwup.
On 11/01/2017 08:02, Brent Hilpert wrote:
I've never heard of that '&o' bizzaro-stuff - where did you find that?
This one:
http://mdfs.net/Software/PDP11/Assembler/AsmPDP.txt
Reading more closely, the encoding has some relation back to BBC BASIC.
Yes, that syntax (&, &o, %) has nothi
> From: Brent Hilpert
> This one:
> ...
> Reading more closely, the encoding has some relation back to BBC BASIC.
Given this (from the documentation):
Assembler directives
#include Includes the specified file.
#ifndef Continue assembling
On 11/01/2017 14:07, Noel Chiappa wrote:
Although I note the documentation says "any valid value recognised by BBC
BASIC" - does BBC basic use the leading '%' notation for constants?
Sort of. BBC BASIC uses the prefix '&' to specify hexadecimal numbers,
so &FFFE is the exact equivalent of 0x
On 2017-Jan-11, at 12:04 AM, Brent Hilpert wrote:
>> I've never heard of that '&o' bizzaro-stuff - where did you find that?
>
> This one:
> http://mdfs.net/Software/PDP11/Assembler/AsmPDP.txt
>
> Reading more closely, the encoding has some relation back to BBC BASIC.
> I was beginning to wo
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