Subject: Re: TRAP CALL IN CASE OF POWERPC
To: David Edelsohn <dje@watson.ibm.com>
From: karan khanna <karan@cdotd.ernet.in>
List: port-powerpc
Date: 08/19/2000 11:16:58
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David Edelsohn wrote:
> >>>>> karan khanna writes:
>
> karan> Can any body tell me how various TRAP calls ,which were implemented
> karan> earlier in previous versions of
> karan> Motorolla micro processors viz-68k family, can be implemented in case of
> karan> POWERPC.
> karan> There were many trap vectors provided in case of 68K family but in PPC
> karan> only one
> karan> unconditional trap is available. How can rest unconditional traps be
> karan> implemented.
>
> Pass a parameter in a register recognized by the trap handler if
> the trap was caused by a trap instruction?
>
> David
This could be true if we could have the flexibility to pass a parameter but when I
want to use trap as a breakpoint instruction i.e replace the instruction by a
simple trap call and also for similar more purposes. Is there any possible way
out??
karan
--
***************************************************************************
When the going gets tough...
The tough get going.
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David Edelsohn wrote:
<blockquote TYPE=CITE>>>>>> karan khanna writes:
<p>karan> Can any body tell me how various TRAP calls ,which were implemented
<br>karan> earlier in previous versions of
<br>karan> Motorolla micro processors viz-68k family, can be implemented
in case of
<br>karan> POWERPC.
<br>karan> There were many trap vectors provided in case of 68K family
but in PPC
<br>karan> only one
<br>karan> unconditional trap is available. How can rest unconditional
traps be
<br>karan> implemented.
<p> Pass a parameter in a register
recognized by the trap handler if
<br>the trap was caused by a trap instruction?
<p>David</blockquote>
This could be true if we could have the flexibility to pass a parameter
but when I want to use trap as a breakpoint instruction i.e replace the
instruction by a simple trap call and also for similar more purposes. Is
there any possible way out??
<p>karan
<pre>--
***************************************************************************
When the going gets tough...
The tough get going.
***************************************************************************</pre>
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