RE: A85: A ROM function

To: assembly-85@lists.ticalc.org
Subject: RE: A85: A ROM function
From: Dines Christy Justesen <c958362@student.dtu.dk>
Date: Thu, 24 Sep 1998 02:09:04 +0200 (METDST)
Delivered-To: assembly-85-outgoing@towerguard.unix.edu.sollentuna.se
In-Reply-To: <Pine.SOL.3.94.980923090453.3825A-100000@triton>
Reply-To: assembly-85@lists.ticalc.org


This would not work. A lot of functions ends with a jr or jp, which the
program owuld not be able to handle. Some programs also pushes information
on the stack and then does a ret, which is actually then a JP.

DInes

__________________________________________

Dines Justesen
Email: c958362@student.dtu.dk
WWW  : http://www.student.dtu.dk/~c958362/
__________________________________________

On Wed, 23 Sep 1998, Humberto Yeverino wrote:

> 
> On Tue, 22 Sep 1998, Kaus .theman.com wrote:
> > Will this get me what i want though?  When you press a menu item, it 
> > just inserts its text into the home screen data area, not to be 
> > processed until enter is pressed with the rest of the arguments.
> > 
> > Isnt this the way it is?  I was thinking perhaps to put in an interrupt 
> > so that i could single step through the evalutuation of the statement, 
> > but this would be a long and tedious way to do it.
> > OR I oculd check the PC before i press enter, and look for the 
> > keyhandler that checks for enter, than just go through it all quickly in 
> > a disassembled rom dump. Any one of these methods would be hard and 
> > tediuos.  Dines:  what did you guys do to find out what was found out :)  
> > how did you guys find those math functions and such?
> > 
> > Jonathan
> > 
> couldn't you make a rom dum then write a program on the computer to search
> for functions.  Something like find all ret instructions.  Anything that
> follows is a function until the next ret.
> 
> Then you could print them out or if you want to get fancy, have the
> program browse through the routines.
> 
> Sounds like it would work, but then again I've never tried this stuff
> before.
> 
> later,
> 
> -Humberto Yeverino Jr.
> 
> "I kick ass for the Lord."
> 
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References:

RE: A85: A ROM function

From: Humberto Yeverino <humberto@engr.csufresno.edu>