Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!purdue!bu-cs!dartvax!eleazar.dartmouth.edu!jskuskin
From: jskuskin@eleazar.dartmouth.edu (Jeffrey Kuskin)
Newsgroups: comp.arch
Subject: Apple's use of A-line traps
Message-ID: <12259@dartvax.Dartmouth.EDU>
Date: 16 Feb 89 21:26:49 GMT
Sender: news@dartvax.Dartmouth.EDU
Reply-To: jskuskin@eleazar.dartmouth.edu (Jeffrey Kuskin)
Distribution: na
Organization: Dartmouth College, Hanover, NH
Lines: 14

I have a couple of questions about Apple's use of the 680x0's A-line
instructions to impelment toolbox calls:

   1)  Why did Apple choose this method?  Simply because it minimized
       code space (important on the 128K original Macs)?

   2)  Does Motorola plan to use the A-line instructions in the future or
       has Apple been promised that they will continue to be available?

Thanks.

-- Jeff Kuskin,  Dartmouth College

EMail:  jskuskin@eleazar.Dartmouth.Edu