Re: A89: Re: disp d0

To: <assembly-89@lists.ticalc.org>
Subject: Re: A89: Re: disp d0
From: "Dux Gregis" <dux@acz.org>
Date: Wed, 12 May 1999 16:58:10 -0400
Delivered-To: assembly-89-outgoing@towerguard.unix.edu.sollentuna.se
Delivered-To: assembly-89@lists.ticalc.org
References: <007901be9c07$b9c8c7c0$dd02e0c7@desktop> <005301be9c66$173b1da0$8d018ad1@rutgers.edu> <005901be9c6a$ee7712c0$8d018ad1@rutgers.edu> <373969EF.F12E3141@hem.passagen.se>
Reply-To: assembly-89@lists.ticalc.org




>
> Dux Gregis wrote:
> > there's really any benift though, since the rom_call macro is only
6
> > bytes (jsr tios::DrawStrXY is also 6 bytes?).
>
> hmm.. I get it to 12 bytes..  I think you forgot about the arguments
to the
> instructions..
> Personally I like to let a6 always point to jumptable and just do
romcalls like
> this:
>
> move.l romcall(a6),a0
> jsr (a0)
>
> and saves some 6 bytes per call :)

yeah, that's what I was counting the 6 bytes as :-) .. only I use a5
for the jumptable.

References:

Re: A89: Tilemap

From: "Scott Noveck" <noveck@pluto.njcc.com>

A89: disp d0

From: "Dux Gregis" <dux@acz.org>

A89: Re: disp d0

From: "Dux Gregis" <dux@acz.org>

Re: A89: Re: disp d0

From: Olle Hedman <oh@hem.passagen.se>