Re: A89: Re: Address Error: Original Question

To: <assembly-89@lists.ticalc.org>
Subject: Re: A89: Re: Address Error: Original Question
From: "Dux Gregis" <assets@eden.rutgers.edu>
Date: Tue, 8 Dec 1998 16:01:43 -0500
Delivered-To: assembly-89-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-89@lists.ticalc.org

>>
>>Dux Gregis wrote:
>>> >
>>> >  print_loop:
>>> >  add.l #1,d1
>>> >  divu #10,d0
>>> >  swap d0
>>> >  add.b #48,d0
>>> >  move.b d0,-(a0)
>>>
>>> This is where your problem lies.  a0 will decrement to an odd address
and
>>> thus cause a memory address error when you move d0 into the odd address
>of
>>> the odd pointer.
>>
>>But he is using move.b?  move.b you can do to an odd address...
>>
>>//Olle
>
>really?  that's going to help me alot
>so when exactly is the adressing the problem?
>

In that case, perhaps the problem is that the print_value method returns an
odd a0 in half the cases and so causes the ROM call to give an address
error?  Or is it safe to have a string begin on an odd byte of memory?

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