reset vector on a 68hc11

[TK]

C can produce some very compact code, but assembly is just a bit tighter.
Since the ecm is code doesn't require any high level routines, it made sense
to go that route. They are places where they are dang clever too.

Terry Kelley
-----Original Message-----
From: Roger Heflin <rah at horizon.hit.net>
To: gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>
Date: Friday, June 25, 1999 10:52 AM
Subject: Re: reset vector on a 68hc11


>
>
>On Fri, 25 Jun 1999 dhardin at ovec.com wrote:
>
>> yea I agree the C code would be much more friendly to tune.  I really
don't
>> understand why it wasn't done that way in the first place at GM.     doug
>>
>
>Because if straight assembly just barely fits in the address space you
>have and just barely runs fast enough, then the C is not going to cut
>it.  This is why in general assembly is used.  The address space
>on mine is pretty much used, they have maybe 6k more they could use,
>but they have basically 24k of code, and with C you would have more
>expansion than that.   Now it sounds like the newer computers (96+?)
>have quite a bit more address space, so then they could use a compiler
>and not run into problems.
>
> Roger
>
>