Subject: Re: ROM Maps
To: Daniel R. Killoran,Ph.D. <firstname.lastname@example.org>
From: Dave Huang <email@example.com>
Date: 02/28/1999 15:50:54
On Sun, 28 Feb 1999, Daniel R. Killoran,Ph.D. wrote:
> That's impossible! Apple could have ADDED traps (and did), but if they
> moved them it would break most existing programs!
No, it's not like on the Apple II where programs would jump to the ROM
routine directly. On the Mac, programs use the trap number (which does
remain constant across all ROMs). The ROMs then handle figuring out
where the actual address of the routine is.
Name: Dave Huang | Mammal, mammal / their names are called /
INet: firstname.lastname@example.org | they raise a paw / the bat, the cat /
FurryMUCK: Dahan | dolphin and dog / koala bear and hog -- TMBG
Dahan: Hani G Y+C 23 Y++ L+++ W- C++ T++ A+ E+ S++ V++ F- Q+++ P+ B+ PA+ PL++