Path: utzoo!attcan!uunet!husc6!mailrus!ames!pasteur!ucbvax!dewey.soe.berkeley.edu!oster
From: oster@dewey.soe.berkeley.edu (David Phillip Oster)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Absolute Assembly
Message-ID: <24687@ucbvax.BERKELEY.EDU>
Date: 14 Jun 88 04:08:50 GMT
References: <3049@polya.Stanford.EDU>
Sender: usenet@ucbvax.BERKELEY.EDU
Reply-To: oster@dewey.soe.berkeley.edu.UUCP (David Phillip Oster)
Organization: School of Education, UC-Berkeley
Lines: 13

Check out the Apple Addison-Weselly book on writing NuBus cards for the Mac II.
In it they use some clever MPW macros to lay out complex data structures
for Mac II card ROMs.

I've always just used MDS for this, but any assembler should work. Once
you have the code physically arranged in the ROM where you want it, I find
it convenient to access hardware registers by LEAing a pointer to them
into a register, and similarly for blocks of variables defined at a pc
relative address.

--- David Phillip Oster            --When you asked me to live in sin with you
Arpa: oster@dewey.soe.berkeley.edu --I didn't know you meant sloth.
Uucp: {uwvax,decvax,ihnp4}!ucbvax!oster%dewey.soe.berkeley.edu