mdec: timing hacks

libretro/pcsx_rearmed#846

diff --git a/libpcsxcore/database.c b/libpcsxcore/database.c
index a393ee9..8e2a31a 100644 (file)
--- a/libpcsxcore/database.c
+++ b/libpcsxcore/database.c
@@ -145,14 +145,16 @@ cycle_multiplier_overrides[] =
        /* Syphon Filter - reportedly hangs under unknown conditions */
        { 169, { "SCUS94240" } },
        /* Psychic Detective - some weird race condition in the game's cdrom code */
-       { 222, { "SLUS00165", "SLUS00166", "SLUS00167" } },
-       { 222, { "SLES00070", "SLES10070", "SLES20070" } },
+       { 200, { "SLUS00165", "SLUS00166", "SLUS00167" } },
+       { 200, { "SLES00070", "SLES10070", "SLES20070" } },
        /* Vib-Ribbon - cd timing issues (PAL+ari64drc only?) */
        { 200, { "SCES02873" } },
        /* Zero Divide - sometimes too fast */
        { 200, { "SLUS00183", "SLES00159", "SLPS00083", "SLPM80008" } },
        /* Eagle One: Harrier Attack - hangs (but not in standalone build?) */
        { 153, { "SLUS00943" } },
+       /* Sol Divide: FMV timing */
+       { 200, { "SLUS01519", "SCPS45260", "SLPS01463" } },
 };
 
 /* Function for automatic patching according to GameID. */

diff --git a/libpcsxcore/mdec.c b/libpcsxcore/mdec.c
index d02a419..f42e67b 100644 (file)
--- a/libpcsxcore/mdec.c
+++ b/libpcsxcore/mdec.c
@@ -34,10 +34,12 @@
  */
  
 /*
- * >= 10 for Galerians
+ * >= 14 for Sol Divide
  * <= 18 for "Disney's Treasure Planet"
+ * Psychic Detective may break on *any* change
  */
-#define MDEC_BIAS 10
+#define MDEC_BIAS 14
+#define MDEC_DELAY 1024
 
 #define DSIZE                  8
 #define DSIZE2                 (DSIZE * DSIZE)
@@ -654,9 +656,9 @@ void psxDma1(u32 adr, u32 bcr, u32 chcr) {
                log_unhandled("mdec: bork\n");
        
        /* define the power of mdec */
-       set_event(PSXINT_MDECOUTDMA, words * MDEC_BIAS);
+       set_event(PSXINT_MDECOUTDMA, words * MDEC_BIAS + MDEC_DELAY);
        /* some CPU stalling */
-       psxRegs.cycle += words;
+       psxRegs.cycle += words * MDEC_BIAS / 4;
 }
 
 void mdec1Interrupt() {