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* $OpenBSD: x_bsun.sa,v 1.3 2002/01/23 19:16:09 fgsch Exp $
* $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 compatibility
*
* 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
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