Function __DSPHandler

src/dolphin/src/dsp/dsp_task.c:12–216

BOOL __DSP_rude_task_pending;

DECL_WEAK void __DSPHandler(__OSInterrupt, OSContext* context)
{
    DSPTaskInfo* tmp_task;
    OSContext exceptionContext;
    u16 tmp;
    u32 mail;

    tmp = __DSPRegs[5];
    tmp = (u16)(tmp & ~0x28) | 0x80;
    __DSPRegs[5] = tmp;

    OSClearContext(&exceptionContext);
    OSSetCurrentContext(&exceptionContext);

    while (!DSPCheckMailFromDSP())
        ;
    mail = DSPReadMailFromDSP();

    if ((__DSP_curr_task->flags & DSP_TASK_FLAG_CANCEL) && (mail == 0xDCD10002))
    {
        mail = 0xDCD10003;
    }

    switch (mail)
    {
    case 0xDCD10000:
        __DSP_curr_task->state = DSP_TASK_STATE_RUN;

        if (__DSP_curr_task->init_cb)
        {
            (*(__DSP_curr_task->init_cb))((void*)(__DSP_curr_task));
        }
        break;
    case 0xDCD10001:
        __DSP_curr_task->state = DSP_TASK_STATE_RUN;
        if (__DSP_curr_task->res_cb)
        {
            (*(__DSP_curr_task->res_cb))((void*)(__DSP_curr_task));
        }
        break;
    case 0xDCD10002:
        if (__DSP_rude_task_pending)
        {
            if (__DSP_curr_task == __DSP_rude_task)
            {
                DSPSendMailToDSP(0xCDD10003);
                while (DSPCheckMailToDSP())
                {
                }

                __DSP_rude_task = NULL;
                __DSP_rude_task_pending = FALSE;

                if (__DSP_curr_task->res_cb)
                {
                    (*(__DSP_curr_task->res_cb))((void*)(__DSP_curr_task));
                }