Re: A85: Re: Tyrant ports

To: assembly-85@lists.ticalc.org
Subject: Re: A85: Re: Tyrant ports
From: Humberto Yeverino <humberto@engr.csufresno.edu>
Date: Fri, 13 Nov 1998 10:23:21 -0800 (PST)
Delivered-To: assembly-85-outgoing@towerguard.unix.edu.sollentuna.se
In-Reply-To: <004601be0e92$4bb63900$5ad2928b@david>
Reply-To: assembly-85@lists.ticalc.org


On Thu, 12 Nov 1998, David Phillips wrote:
> But aren't programs for Usgard smaller and faster in size, due to the
> programs being relocated?  I thought every absolute jump or call inside the
> program had to be fixed to add the program address.  Or is the code patched
> as it is being loaded?  (I like the 86, code is relocated by the TI-OS :-)
> 
Yeah, I guess it would save a little, but only for absolute jumps.  There
are so many calls it would be pointless to use Usgards built in
relocation.  But there aren't as many absolute jumps.  I think Usgard save
1 byte over Zshell for abs jumps.. I can't imagine the game having more
than 30 absloute jumps.. saving 30 bytes.

On the side, even with no overhead for calls, there is still overhead just
because I have to call so many routines.  I've though of a way to save a
byte by writing a routine that calls a bunch of addresses stored in a
table somewhere.

-Humberto Yeverino Jr.

"I kick ass for the Lord."
-Dead Alive (1992)

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References:

A85: Re: Tyrant ports

From: "David Phillips" <electrum@tfs.net>