Annotation of sys/arch/m68k/fpsp/x_bsun.sa, Revision 1.1.1.1
1.1 nbrk 1: * $OpenBSD: x_bsun.sa,v 1.3 2002/01/23 19:16:09 fgsch Exp $
2: * $NetBSD: x_bsun.sa,v 1.2 1994/10/26 07:50:22 cgd Exp $
3:
4: * MOTOROLA MICROPROCESSOR & MEMORY TECHNOLOGY GROUP
5: * M68000 Hi-Performance Microprocessor Division
6: * M68040 Software Package
7: *
8: * M68040 Software Package Copyright (c) 1993, 1994 Motorola Inc.
9: * All rights reserved.
10: *
11: * THE SOFTWARE is provided on an "AS IS" basis and without warranty.
12: * To the maximum extent permitted by applicable law,
13: * MOTOROLA DISCLAIMS ALL WARRANTIES WHETHER EXPRESS OR IMPLIED,
14: * INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
15: * PARTICULAR PURPOSE and any warranty against infringement with
16: * regard to the SOFTWARE (INCLUDING ANY MODIFIED VERSIONS THEREOF)
17: * and any accompanying written materials.
18: *
19: * To the maximum extent permitted by applicable law,
20: * IN NO EVENT SHALL MOTOROLA BE LIABLE FOR ANY DAMAGES WHATSOEVER
21: * (INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS
22: * PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR
23: * OTHER PECUNIARY LOSS) ARISING OF THE USE OR INABILITY TO USE THE
24: * SOFTWARE. Motorola assumes no responsibility for the maintenance
25: * and support of the SOFTWARE.
26: *
27: * You are hereby granted a copyright license to use, modify, and
28: * distribute the SOFTWARE so long as this entire notice is retained
29: * without alteration in any modified and/or redistributed versions,
30: * and that such modified versions are clearly identified as such.
31: * No licenses are granted by implication, estoppel or otherwise
32: * under any patents or trademarks of Motorola, Inc.
33:
34: *
35: * x_bsun.sa 3.3 7/1/91
36: *
37: * fpsp_bsun --- FPSP handler for branch/set on unordered exception
38: *
39: * Copy the PC to FPIAR to maintain 881/882 compatibility
40: *
41: * The real_bsun handler will need to perform further corrective
42: * measures as outlined in the 040 User's Manual on pages
43: * 9-41f, section 9.8.3.
44: *
45:
46: X_BSUN IDNT 2,1 Motorola 040 Floating Point Software Package
47:
48: section 8
49:
50: include fpsp.h
51:
52: xref real_bsun
53:
54: xdef fpsp_bsun
55: fpsp_bsun:
56: *
57: link a6,#-LOCAL_SIZE
58: fsave -(a7)
59: movem.l d0-d1/a0-a1,USER_DA(a6)
60: fmovem.x fp0-fp3,USER_FP0(a6)
61: fmovem.l fpcr/fpsr/fpiar,USER_FPCR(a6)
62:
63: *
64: move.l EXC_PC(a6),USER_FPIAR(a6)
65: *
66: movem.l USER_DA(a6),d0-d1/a0-a1
67: fmovem.x USER_FP0(a6),fp0-fp3
68: fmovem.l USER_FPCR(a6),fpcr/fpsr/fpiar
69: frestore (a7)+
70: unlk a6
71: bra.l real_bsun
72: *
73: end
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