A83: Sv: rom redundancy

To: <assembly-83@lists.ticalc.org>
Subject: A83: Sv: rom redundancy
From: "Andreas" <ahj@trition.dk>
Date: Sat, 29 Apr 2000 12:48:56 +0200
References: <20000429081002.62749.qmail@hotmail.com>
Reply-To: assembly-83@lists.ticalc.org


Whats the name of the disassembler? I can't find a good one that dose ti roms #)


Andreas Hjordt

----- Original Message ----- 
From: Doug Torrance <profzoom@hotmail.com>
To: <assembly-83@lists.ticalc.org>
Sent: Saturday, April 29, 2000 10:10 AM
Subject: A83: rom redundancy


> 
> I was messing around, comparing the disassembled roms of the 82 and 83, and 
> I noticed something interesting.  Most of the 83's commonly used rom calls 
> in the $4000's actually just call another routine earlier on in the rom.  
> For instance, take a look at _getcsc, located at $4014:
> call $268
> ret
> I tested out a little program using $268 instead of $4014, and of course it 
> worked perfectly.  Plus I saved a few clock cycles.  Any idea why TI might 
> have done this?
> 
> Doug
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References:

A83: rom redundancy

From: "Doug Torrance" <profzoom@hotmail.com>