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//

//      $Id: x_bsun.S,v 1.2 2001-09-27 12:01:22 chris Exp $

//

//      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.

//

//              Copyright (C) Motorola, Inc. 1990

//                      All Rights Reserved

//

//      THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF MOTOROLA

//      The copyright notice above does not evidence any

//      actual or intended publication of such source code.

X_BSUN: //idnt    2,1 | Motorola 040 Floating Point Software Package

        |section        8

#include "fpsp.defs"

        |xref   real_bsun

        .global fpsp_bsun

fpsp_bsun:

//

        link            %a6,#-LOCAL_SIZE

        fsave           -(%a7)

        moveml          %d0-%d1/%a0-%a1,USER_DA(%a6)

        fmovemx %fp0-%fp3,USER_FP0(%a6)

        fmoveml %fpcr/%fpsr/%fpiar,USER_FPCR(%a6)

//

        movel           EXC_PC(%a6),USER_FPIAR(%a6)

//

        moveml          USER_DA(%a6),%d0-%d1/%a0-%a1

        fmovemx USER_FP0(%a6),%fp0-%fp3

        fmoveml USER_FPCR(%a6),%fpcr/%fpsr/%fpiar

        frestore        (%a7)+

        unlk            %a6

        bral            real_bsun

//

        |end