32x: improved lockstep mode, allows compatibility over 50%

[picodrive.git] / pico / cd / pico.c

diff --git a/pico/cd/pico.c b/pico/cd/pico.c
index 8c0bf25..8b65f4f 100644 (file)
--- a/pico/cd/pico.c
+++ b/pico/cd/pico.c
@@ -30,7 +30,6 @@ PICO_INTERNAL void PicoPowerMCD(void)
   memset(Pico_mcd->pcm_ram,    0, sizeof(Pico_mcd->pcm_ram));
   memset(Pico_mcd->bram, 0, sizeof(Pico_mcd->bram));
   memcpy(Pico_mcd->bram + sizeof(Pico_mcd->bram) - fmt_size, formatted_bram, fmt_size);
-  PicoMemRemapCD(1);
 }
 
 PICO_INTERNAL int PicoResetMCD(void)
@@ -212,6 +211,16 @@ static __inline void update_chips(void)
 
 
 #define PICO_CD
+#define CPUS_RUN(m68k_cycles,s68k_cycles) \
+{ \
+    if ((PicoOpt&POPT_EN_MCD_PSYNC) && (Pico_mcd->m.busreq&3) == 1) { \
+      SekRunPS(m68k_cycles, s68k_cycles); /* "better/perfect sync" */ \
+    } else { \
+      SekRunM68k(m68k_cycles); \
+      if ((Pico_mcd->m.busreq&3) == 1) /* no busreq/no reset */ \
+        SekRunS68k(s68k_cycles); \
+    } \
+}
 #include "../pico_cmn.c"