spu: rework irq handling and loop reloading

irq might be too early, but this seems to be better than was before.
Special thanks to Ryphecha for some ideas again.

1 files changed, 1 insertions, 5 deletions

diff --git a/plugins/dfsound/registers.c b/plugins/dfsound/registers.c
index 1a51cd7..45df2eb 100644
--- a/plugins/dfsound/registers.c
+++ b/plugins/dfsound/registers.c
@@ -173,10 +173,6 @@ void CALLBACK SPUwriteRegister(unsigned long reg, unsigned short val)
      //------------------------------------------------//

      case 14:                                          // loop?

        s_chan[ch].pLoop=spuMemC+((val&~1)<<3);

-       if(s_chan[ch].bJump)

-        // real machine would be most likely still doing the last block and use new value for the jump;

-        // but we decode ahead a bit and already did the jump part, so compensate for that now.

-        s_chan[ch].pCurr=s_chan[ch].pLoop;

        break;

      //------------------------------------------------//

     }

@@ -428,7 +424,7 @@ static void SoundOn(int start,int end,unsigned short val)
      s_chan[ch].bStop=0;

      s_chan[ch].pCurr=spuMemC+((regAreaGet(ch,6)&~1)<<3); // must be block aligned

      s_chan[ch].pLoop=spuMemC+((regAreaGet(ch,14)&~1)<<3);

-     s_chan[ch].bJump=0;

+     s_chan[ch].prevflags=2;

 

      dwNewChannel|=(1<<ch);                            // bitfield for faster testing

      dwChannelOn|=1<<ch;