xref: /src/sys/arch/m68k/fpsp/x_bsun.sa

*	$NetBSD: x_bsun.sa,v 1.2 1994/10/26 07:50:22 cgd Exp $

*	MOTOROLA MICROPROCESSOR & MEMORY TECHNOLOGY GROUP
*	M68000 Hi-Performance Microprocessor Division
*	M68040 Software Package 
*
*	M68040 Software Package Copyright (c) 1993, 1994 Motorola Inc.
*	All rights reserved.
*
*	THE SOFTWARE is provided on an "AS IS" basis and without warranty.
*	To the maximum extent permitted by applicable law,
*	MOTOROLA DISCLAIMS ALL WARRANTIES WHETHER EXPRESS OR IMPLIED,
*	INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
*	PARTICULAR PURPOSE and any warranty against infringement with
*	regard to the SOFTWARE (INCLUDING ANY MODIFIED VERSIONS THEREOF)
*	and any accompanying written materials. 
*
*	To the maximum extent permitted by applicable law,
*	IN NO EVENT SHALL MOTOROLA BE LIABLE FOR ANY DAMAGES WHATSOEVER
*	(INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS
*	PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR
*	OTHER PECUNIARY LOSS) ARISING OF THE USE OR INABILITY TO USE THE
*	SOFTWARE.  Motorola assumes no responsibility for the maintenance
*	and support of the SOFTWARE.  
*
*	You are hereby granted a copyright license to use, modify, and
*	distribute the SOFTWARE so long as this entire notice is retained
*	without alteration in any modified and/or redistributed versions,
*	and that such modified versions are clearly identified as such.
*	No licenses are granted by implication, estoppel or otherwise
*	under any patents or trademarks of Motorola, Inc.

*
*	x_bsun.sa 3.3 7/1/91
*
*	fpsp_bsun --- FPSP handler for branch/set on unordered exception
*
*	Copy the PC to FPIAR to maintain 881/882 compatability
*
*	The real_bsun handler will need to perform further corrective
*	measures as outlined in the 040 User's Manual on pages
*	9-41f, section 9.8.3.
*

X_BSUN	IDNT    2,1 Motorola 040 Floating Point Software Package

	section	8

	include	fpsp.h

	xref	real_bsun

	xdef	fpsp_bsun
fpsp_bsun:
*
	link		a6,#-LOCAL_SIZE
	fsave		-(a7)
	movem.l		d0-d1/a0-a1,USER_DA(a6)
	fmovem.x	fp0-fp3,USER_FP0(a6)
	fmovem.l	fpcr/fpsr/fpiar,USER_FPCR(a6)

*
	move.l		EXC_PC(a6),USER_FPIAR(a6)
*
	movem.l		USER_DA(a6),d0-d1/a0-a1
	fmovem.x	USER_FP0(a6),fp0-fp3
	fmovem.l	USER_FPCR(a6),fpcr/fpsr/fpiar
	frestore	(a7)+
	unlk		a6
	bra.l		real_bsun
*
	end