libpcsxcore/spu.c

   1 /***************************************************************************
   2  *   Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team              *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA.           *
  18  ***************************************************************************/
  19
  20 /*
  21 * Sound (SPU) functions.
  22 */
  23
  24 #include "spu.h"
  25 #include "psxevents.h"
  26
  27 void CALLBACK SPUirq(int cycles_after) {
  28         if (cycles_after > 0) {
  29                 set_event(PSXINT_SPU_IRQ, cycles_after);
  30                 return;
  31         }
  32
  33         psxHu32ref(0x1070) |= SWAPu32(0x200);
  34 }
  35
  36 void spuDelayedIrq() {
  37         psxHu32ref(0x1070) |= SWAPu32(0x200);
  38 }
  39
  40 // spuUpdate
  41 void CALLBACK SPUschedule(unsigned int cycles_after) {
  42         set_event(PSXINT_SPU_UPDATE, cycles_after);
  43 }
  44
  45 void spuUpdate() {
  46         SPU_async(psxRegs.cycle, 0);
  47 }