Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

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|       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
|
|       For details on the license for this file, please see the
|       file, README, in this same directory.

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

        |section        8

#include "fpsp.h"

        |xref   real_bsun

        .global fpsp_bsun
fpsp_bsun:
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        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)

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