s_svada.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"
 
static void __attribute__((optimize("no-unroll-loops"))) _spu_wait_SpuSetVoiceADSRAttr(void)
{
    int i;
    int v1;
 
    v1 = 1;
    for ( i = 0; i < 2; i += 1 )
    {
        v1 *= 13;
        __asm__ __volatile__("" : "+g"(v1) : :);
    }
}
 
void SpuSetVoiceADSRAttr(int v_num, u16 ar, u16 dr, u16 sr, u16 rr, u16 sl, int ar_mode, int sr_mode, int rr_mode)
{
    s16 v9;
    s16 v10;
    int v11;
    s16 v12;
    u16 v13;
 
    v9 = ((ar & 0x7F) << 8) | (16 * (dr & 0xF));
    v10 = ((sr & 0x7F) << 6) | (rr & 0x1F);
    v11 = 8 * v_num;
    _spu_RXX[512 * _spu_core + 3 + 8 * v_num] = v9 | (sl & 0xF) | ((ar_mode == SPU_VOICE_EXPIncN) << 15);
    switch ( sr_mode )
    {
        case SPU_VOICE_LINEARIncN:
            v12 = 0;
            break;
        case SPU_VOICE_EXPIncN:
            v12 = 0x8000;
            break;
        case SPU_VOICE_EXPDec:
            v12 = 0xC000;
            break;
        default:
            v12 = 0x4000;
            break;
    }
    v13 = v10 | v12;
    if ( rr_mode == SPU_VOICE_EXPDec )
        v13 = v10 | v12 | 0x20;
    _spu_RXX[512 * _spu_core + 4 + v11] = v13;
    _spu_wait_SpuSetVoiceADSRAttr();
}