X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=Pico%2Fsound%2Fsound.c;h=64e172a07c3710875ea213b5d603f40cc9ce39dd;hb=1b13dae0c45a068382ce2422b1d407ff47374039;hp=d901a1dce8f210360d99ec6eafb9a3ee853c6c83;hpb=b542be4686241c9e0722ff8e452980f9ac2b4d7c;p=picodrive.git

diff --git a/Pico/sound/sound.c b/Pico/sound/sound.c
index d901a1d..64e172a 100644
--- a/Pico/sound/sound.c
+++ b/Pico/sound/sound.c
@@ -15,6 +15,8 @@
 #include "../cd/pcm.h"
 #include "mix.h"
 
+void (*PsndMix_32_to_16l)(short *dest, int *src, int count) = mix_32_to_16l_stereo;
+
 // master int buffer to mix to
 static int PsndBuffer[2*44100/50];
 
@@ -151,6 +153,9 @@ void PsndRerate(int preserve_state)
   memset32(PsndBuffer, 0, sizeof(PsndBuffer)/4);
   if (PsndOut)
     PsndClear();
+
+  // set mixer
+  PsndMix_32_to_16l = (PicoOpt & 8) ? mix_32_to_16l_stereo : mix_32_to_16_mono;
 }
 
 
@@ -227,6 +232,7 @@ PICO_INTERNAL int PsndRender(int offset, int length)
   int do_pcm = (PicoMCD&1) && (PicoOpt&0x400) && (Pico_mcd->pcm.control & 0x80) && Pico_mcd->pcm.enabled;
   offset <<= stereo;
 
+#if !SIMPLE_WRITE_SOUND
   if (offset == 0) { // should happen once per frame
     // compensate for float part of PsndLen
     PsndLen_exc_cnt += PsndLen_exc_add;
@@ -235,6 +241,7 @@ PICO_INTERNAL int PsndRender(int offset, int length)
       length++;
     }
   }
+#endif
 
   // PSG
   if (PicoOpt & 2)
@@ -260,9 +267,7 @@ PICO_INTERNAL int PsndRender(int offset, int length)
     mp3_update(buf32, length, stereo);
 
   // convert + limit to normal 16bit output
-  if (stereo)
-       mix_32_to_16l_stereo(PsndOut+offset, buf32, length);
-  else mix_32_to_16_mono   (PsndOut+offset, buf32, length);
+  PsndMix_32_to_16l(PsndOut+offset, buf32, length);
 
   return length;
 }
@@ -372,7 +377,7 @@ PICO_INTERNAL void z80_init(void)
   memset(&CZ80, 0, sizeof(CZ80));
   Cz80_Init(&CZ80);
   Cz80_Set_Fetch(&CZ80, 0x0000, 0x1fff, (UINT32)Pico.zram); // main RAM
-  Cz80_Set_Fetch(&CZ80, 0x2000, 0x3fff, (UINT32)Pico.zram - 0x2000); // mirror
+  Cz80_Set_Fetch(&CZ80, 0x2000, 0x3fff, (UINT32)Pico.zram); // mirror
   Cz80_Set_ReadB(&CZ80, (UINT8 (*)(UINT32 address))z80_read); // unused (hacked in)
   Cz80_Set_WriteB(&CZ80, z80_write);
   Cz80_Set_INPort(&CZ80, z80_in);
@@ -395,6 +400,9 @@ PICO_INTERNAL void z80_reset(void)
   drZ80.Z80SP = drZ80.z80_rebaseSP(0x2000); // 0xf000 ?
 #elif defined(_USE_CZ80)
   Cz80_Reset(&CZ80);
+  Cz80_Set_Reg(&CZ80, CZ80_IX, 0xffff);
+  Cz80_Set_Reg(&CZ80, CZ80_IY, 0xffff);
+  Cz80_Set_Reg(&CZ80, CZ80_SP, 0x2000);
 #endif
   Pico.m.z80_fakeval = 0; // for faking when Z80 is disabled
 }