s_si.c

/*
# _____     ___ ____     ___ ____
#  ____|   |    ____|   |        | |____|
# |     ___|   |____ ___|    ____| |    \    PS2DEV Open Source Project.
#-----------------------------------------------------------------------
# Copyright ps2dev - http://www.ps2dev.org
# Licenced under Academic Free License version 2.0
# Review ps2sdk README & LICENSE files for further details.
*/
 
#include "libspu2_internal.h"
 
int SpuSetIRQ(int on_off)
{
    int v7;
 
    switch ( on_off )
    {
        case SPU_OFF:
        case SPU_RESET:
        {
            vu16 *v2;
            unsigned int v3;
 
            v2 = &_spu_RXX[512 * _spu_core];
            v2[205] &= ~0x40u;
            v3 = 1;
            while ( (v2[205] & 0x40) != 0 )
            {
                if ( v3 >= 0xF01 )
                {
                    printf("SPU:T/O [%s]\n", "wait (IRQ/ON)");
                    return -1;
                }
                v3 += 1;
            }
            DisableIntr(IOP_IRQ_SPU, &v7);
            break;
        }
        default:
            break;
    }
    switch ( on_off )
    {
        case SPU_ON:
        case SPU_RESET:
        {
            vu16 *v5;
            unsigned int v6;
 
            v5 = &_spu_RXX[512 * _spu_core];
            v5[205] |= 0x40u;
            v6 = 1;
            while ( (v5[205] & 0x40) == 0 )
            {
                if ( v6 >= 0xF01 )
                {
                    printf("SPU:T/O [%s]\n", "wait (IRQ/OFF)");
                    return -1;
                }
                v6 += 1;
            }
            EnableIntr(IOP_IRQ_SPU);
            break;
        }
        default:
            break;
    }
    return on_off;
}