RE: A92: Fargo on the 89?


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RE: A92: Fargo on the 89?




At 23:53 1998-06-26 -0400, you wrote:
>
>
>
>>-----Original Message-----
>>From: owner-assembly-92@lists.ticalc.org
>>[mailto:owner-assembly-92@lists.ticalc.org]On Behalf Of
>>TurboSoft@aol.com
>>Sent: Friday, June 26, 1998 11:01 PM
>>To: assembly-92@lists.ticalc.org
>>Subject: Re: A92: Fargo on the 89?
>>
>>
>>
>>In a message dated 6/26/98 12:45:58 PM Eastern Daylight Time,
>>brabeler@isd.ingham.k12.mi.us writes:
>>
>>> That's true, but the 83 didn't need a shell either and now we have
>>>  AShell83 and SOS.  David said he was probably going to make a special
>>>  version of Fargo for the 89.
>>
>>That would be cool.
>>
>>l have a question.  it's either smart or really dumb, l don't know because l
>>don't have a 92.  Anyway can calculators that have to have a hacked assembly
>>shell (like Fargo and then ZShell for the 85) have interrupts that work
during
>>normal use of the calculator?  like the interrupts and (l guess TSRs) on the
>>86.
>>
>
>no, fargo doesn't allow anyone to change the interrups for normal
operation. This is b/c relocation causes the interrupt called, to
>crash the calculator.
> 

It can be done, but

 1) The program must be on a steady location in memory, i.e. the bottom of
the stack or something.
 2) It mustn't call any library functions (except those in the ROM).


Niklas Brunlid - http://www.efd.lth.se/~e96nbr
PQF Quote follows:

"Are you a physicist?"
"Me? I don't know anything about science!"
"Marvellous! Ideal qualification!"
        -- (Terry Pratchett, Johnny and the dead)


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