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- Newsgroups: comp.sys.mac.programmer
- Path: sparky!uunet!mnemosyne.cs.du.edu!nyx!rduta
- From: rduta@nyx.cs.du.edu (Radu)
- Subject: Re: using the A5 register (help wanted)
- Message-ID: <1993Jan4.051629.7363@mnemosyne.cs.du.edu>
- Keywords: Help wanted
- Sender: usenet@mnemosyne.cs.du.edu (netnews admin account)
- Organization: Nyx, Public Access Unix @ U. of Denver Math/CS dept.
- References: <1993Jan3.180416.2891@mnemosyne.cs.du.edu> <C0B4CL.LK@news.cso.uiuc.edu>
- Date: Mon, 4 Jan 93 05:16:29 GMT
- Lines: 15
-
- Ok, that's a start. So you say that A5 is used as a reference for the global
- application variables. Is this an agreed standard? For example, if i wrote
- a program strictly in asembly, would even need set up A5, from the description
- you gave me it sounds as though the compiler creates and uses A5 for it's
- own purposes, which i doubt. I think I heard somewhere that it's used to
- store QuickDraw information that pertains to the current application.
-
- In any case what exactly is A5, does it hold and pointer or handle, and what
- is the format for what it holds?
-
- radu
-
- --
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