[Coco] Assemblers' Documentation

[William Astle]

On 13-01-23 10:08 PM, Luis Antoniosi (CoCoDemus) wrote:
> Hi William,
>
> i found some bugs on lwasm when you make a bad syntax like:
>
> leax #3,x
>
> will cause segmentation fault (ouch!) and you don't even know which line is
> the error.

Yes, that is clearly a bug. Thank you for reporting it. Which version of 
lwasm are you using? Did it happen with the new release today?

> Other problem I found it wont report any error with:
>
> inca var
>
> when you wanted:
>
> inc var
>
> Dunno if it generated a single inca ou some invalid bytes sequence.

This will have generated an inca instruction.

This is not a bug but a side effect of the source format which allows 
the comment field at the end of the line without a comment character. 
There is no possible way to detect whether you meant "inc var" or "inca" 
with a comment "var". You'll see this behaviour with any assembler that 
supports EDTASM style syntax.

>
> Regards,
>
> Luis Felipe.
>
>
> On Wed, Jan 23, 2013 at 11:27 PM, William Astle <lost at l-w.ca> wrote:
>
>> Howdy. The only complaint I'm going to make about your message is the lack
>> of paragraphs made it hard to read. Enough complaining.
>>
>> I happen to be the creator of one assembler for the 6809/6309 which is
>> part of lwtools (http://lwtools.projects.l-w.**ca/<http://lwtools.projects.l-w.ca/>).
>> It generally accepts standard Motorola syntax with extras like allowing ";"
>> to introduce comments (in addition to "*"). It happens to have a reasonably
>> complete manual (available at the project's web site).
>>
>> You will probably find that most assemblers will accept mostly standard
>> Motorola syntax often with extras.
>>
>> On 13-01-23 08:49 PM, Kip Koon wrote:
>>
>>> Hello Ya'll,
>>>
>>> I need help to figure out the proper documentation for all the different
>>> assemblers and cross-assemblers everyone is using as they relate to the
>>> 6809
>>> and the three Cocos.  The assemblers I know of are RMACxx, Mamou, C.ASM
>>> (OS-9), ASM (OS9) RMA (OS-9) and I know there has to be many more which
>>> I'm
>>> not remembering right now.  I am confused as to which ones follow Motorola
>>> guidelines.  I realize we all are from different backgrounds and I
>>> definitely do not wish to step on anyone's toes as they say, but from
>>> what I
>>> can figure out, I think the ";" semicolons seem to be used in a lot in
>>> Intel
>>> assemblers which I see ";" used a lot in some of the 6809 assembly
>>> language
>>> source code files I've been perusing lately for the Coco, and
>>> OS-9/NitrOS-9
>>> and I really don't understand why.  I've used 6800 and 6809 assemblers
>>> over
>>> the years as well as 8080 and I've almost never used ";" semicolons in
>>> assembler language source code for either the 6800 nor the 6809 processors
>>> if ever.  I cannot find any documentation for the Mamou and RMACxx
>>> assemblers and I'm assuming the C.ASM, ASM and RMA assemblers follow the
>>> guidelines given in the old Motorola programming manuals, but I'm not
>>> totally sure about that neither.  If I was learning to write Intel
>>> Assembly
>>> Language, I'd follow Intel's guidelines to the letter, but I'm programming
>>> for Motorola's 6809 processor which I dearly love as I know you all do
>>> also.
>>> I have no problem adjusting assemblers to follow guidelines from other
>>> processor manufacturers' assembly language guidelines as long as the
>>> assemblers for the 6800 & 6809 which everyone likes to use, also follow
>>> Motorola's guidelines to the letter as well.  I wish to do everything I
>>> can
>>> to help this group which I'm very glad I have found after over 30 years,
>>> but
>>> during the continuing development of my 6809 computer, I've found a lot of
>>> 6809 source code for many different 6809 projects which uses punctuation
>>> marks in 6809 assembly language source code in strange ways and I don't
>>> know
>>> which assembler or cross-assembler to use with which 6809 source code so I
>>> can assemble the program successfully into binary machine language so I
>>> can
>>> enjoy using it all in my little 6809 computer.  Help!  I don't know if any
>>> standard for 6809 assembly language source code programs is possible at
>>> this
>>> point in time,  especially since we have no support from the original
>>> manufacturer, but with such a wonderful mix of programmers and their
>>> backgrounds, I'd really like to see some type of 6809 standard definitely
>>> incorporating Motorola's standards to be used among all the 6809 assembler
>>> programs.  This would make things a lot easier.  I could be way off on
>>> this
>>> and if so I apologize, so please be kind as I have tried to be kind.  I
>>> just
>>> want to use some of this wonderful wealth of programs we all are sharing
>>> with each other.  For any newbie coming to this list, all the mismatching
>>> between 6809 assemblers with 6809 assembly source code can be quite
>>> daunting.  Again, please be kind, because as I write this, I'm feeling
>>> like
>>> I'm going to really get it from someone which of course I hope I don't.
>>>   So
>>> Have a lot of fun 6809ing and Cocoing.  J  Be Happy!
>>>
>>> Kip
>>>
>>>
>>>
>>>
>>> --
>>> Coco mailing list
>>> Coco at maltedmedia.com
>>> http://five.pairlist.net/**mailman/listinfo/coco<http://five.pairlist.net/mailman/listinfo/coco>
>>>
>>>
>>
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>>
>
>
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