X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=Pico%2FMemory.c;h=a9f0927434083ec96bb308a3ff3d849da1ef00b0;hb=453d2a6edadbd6a0977b76eba14961006c907f01;hp=fb6b99c41e6ab98bc94b9b461e3911c3be372dbc;hpb=538a6098d484745df10aa4923c69581b81e0c09d;p=picodrive.git

diff --git a/Pico/Memory.c b/Pico/Memory.c
index fb6b99c..a9f0927 100644
--- a/Pico/Memory.c
+++ b/Pico/Memory.c
@@ -883,14 +883,13 @@ int ym2612_write_local(u32 a, u32 d, int is_from_z80)
   return YM2612Write_(a, d);
 }
 
-// TODO: savestates
+
 #define ym2612_read_local() \
   if (xcycles >= timer_a_next_oflow) \
     ym2612.OPN.ST.status |= (ym2612.OPN.ST.mode >> 2) & 1; \
   if (xcycles >= timer_b_next_oflow) \
     ym2612.OPN.ST.status |= (ym2612.OPN.ST.mode >> 2) & 2
 
-
 u32 ym2612_read_local_z80(void)
 {
   int xcycles = z80_cyclesDone() << 8;
@@ -913,6 +912,23 @@ u32 ym2612_read_local_68k(void)
   return ym2612.OPN.ST.status;
 }
 
+// TODO: new ym2612 savestates
+void ym2612_unpack_state(void)
+{
+  int i;
+  YM2612PicoStateLoad();
+
+  // feed all the registers and update internal state
+  for (i = 0x20; i < 0xC0; i++) {
+    ym2612_write_local(0, i, 0);
+    ym2612_write_local(1, ym2612.REGS[i], 0);
+  }
+  for (i = 0x30; i < 0xC0; i++) {
+    ym2612_write_local(2, i, 0);
+    ym2612_write_local(3, ym2612.REGS[i|0x100], 0);
+  }
+}
+
 // -----------------------------------------------------------------
 //                        z80 memhandlers