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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