Path: utzoo!utgpu!water!watmath!clyde!cbosgd!osu-cis!tut!cedar!mills-cl
From: mills-cl@cedar.cis.ohio-state.edu (christopher mills)
Newsgroups: comp.sys.amiga
Subject: Re: amiga.lib calls...
Message-ID: <6418@tut.cis.ohio-state.edu>
Date: 11 Feb 88 00:05:19 GMT
References: <8802091727.AA09035@jade.berkeley.edu>
Sender: news@tut.cis.ohio-state.edu
Organization: The Ohio State University Dept of Computer and Information Science
Lines: 31

[]

>    Does anyone know how to [c]all routines in the amiga.lib library from
>assembly language?

	I certanly hope so.

	The ones with the LVO's are called with the parameters in registers,
relative to the library base pointer in A6, ie:

	xref	LVOOpenScreen
	move.l	_IntuitionBase,a6
	lea	newscreen,a0
	jsr	LVOOpenScreen(a6)

	The ones that don't have LVO's are C calls, and have their args on
the stack.  They have an underscore in front, ie:

	xref	_OpenScreen
	pea	newscreen
	jsr	_OpenScreen

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
 _____________________           |     Christopher Mills.
(_)________________   \          |     mills-cl@polaris.cis.ohio-state.edu
  ________________|\   \         |
 (_)______________\_\   \        |     Current thought: Death before dongles.
   ______________________\       |
  (_)____________________|       |     DISCLAMER: I really wish I could blame
                                 |          my thoughts on someone else...
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