Function __OSUnhandledException

src/dolphin/src/os/OSError.c:114–231

}

void __OSUnhandledException(__OSException exception, OSContext* context, u32 dsisr, u32 dar)
{
    OSTime now;

    now = OSGetTime();

    if (!(context->srr1 & MSR_RI))
    {
        OSReport("Non-recoverable Exception %d", exception);
    }
    else
    {
        if (exception == __OS_EXCEPTION_PROGRAM && (context->srr1 & (0x80000000 >> 11)) &&
            __OSErrorTable[OS_ERROR_FPE] != 0)
        {
            u32 fpscr;
            u32 msr;

            exception = OS_ERROR_FPE;

            msr = PPCMfmsr();
            PPCMtmsr(msr | MSR_FP);

            if (__OSFPUContext)
            {
                OSSaveFPUContext((OSContext*)__OSFPUContext);
            }

            fpscr = PPCMffpscr();
            fpscr &= ~(FPSCR_VXVC | FPSCR_VXIMZ | FPSCR_VXZDZ | FPSCR_VXIDI | FPSCR_VXISI |
                       FPSCR_VXSNAN | FPSCR_VXSOFT | FPSCR_VXSQRT | FPSCR_VXCVI | FPSCR_XX |
                       FPSCR_ZX | FPSCR_UX | FPSCR_OX | FPSCR_FX | FPSCR_FI);
            PPCMtfpscr(fpscr);

            PPCMtmsr(msr);

            if (__OSFPUContext == context)
            {
                OSDisableScheduler();
                __OSErrorTable[exception](exception, context, dsisr, dar);
                context->srr1 &= ~MSR_FP;
                __OSFPUContext = NULL;

                context->fpscr &=
                    ~(FPSCR_VXVC | FPSCR_VXIMZ | FPSCR_VXZDZ | FPSCR_VXIDI | FPSCR_VXISI |
                      FPSCR_VXSNAN | FPSCR_VXSOFT | FPSCR_VXSQRT | FPSCR_VXCVI | FPSCR_XX |
                      FPSCR_ZX | FPSCR_UX | FPSCR_OX | FPSCR_FX | FPSCR_FI);
                OSEnableScheduler();
                __OSReschedule();
            }
            else
            {
                context->srr1 &= ~MSR_FP;
                __OSFPUContext = NULL;
            }

            OSLoadContext(context);
        }