X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=cpu%2Ffame%2Ffamec.c;h=0bb0f9ba1dd625dc1698e3942c518d3e4f43f9f1;hb=8b99ab90aa519639a87c302c9a26fef526febde9;hp=6b147b28b0b9fa7f125c9a51bfefd57a31611e4e;hpb=8022f53da61b8e70420a3bac97250119bbe26457;p=picodrive.git

diff --git a/cpu/fame/famec.c b/cpu/fame/famec.c
index 6b147b2..0bb0f9b 100644
--- a/cpu/fame/famec.c
+++ b/cpu/fame/famec.c
@@ -4,7 +4,7 @@
 /* Autor: Oscar Orallo Pelaez                                               */
 /* Fecha de comienzo: 03-10-2006                                            */
 /* Ultima actualizacion: 08-10-2006                                         */
-/* Based on the excellent FAMEC emulator by Stèphane Dallongueville          */
+/* Based on the excellent C68K emulator by Stèphane Dallongueville          */
 /****************************************************************************/
 
 #include <stdio.h>
@@ -20,7 +20,7 @@
 #define FAMEC_CHECK_BRANCHES
 #define FAMEC_EXTRA_INLINE
 // #define FAMEC_DEBUG
-//#define FAMEC_NO_GOTOS
+#define FAMEC_NO_GOTOS
 #define FAMEC_ADR_BITS  24
 // #define FAMEC_FETCHBITS 8
 #define FAMEC_DATABITS  8
@@ -280,11 +280,18 @@ typedef signed int	s32;
 	((u32)PC - BasePC)
 
 
+#ifdef FAMEC_CHECK_BRANCHES
+#define FORCE_ALIGNMENT(pc)
+#else
+#define FORCE_ALIGNMENT(pc) pc&=~1;
+#endif
+
 #ifndef FAMEC_32BIT_PC
 
 #define SET_PC(A)               \
 { \
     u32 pc = A; \
+    FORCE_ALIGNMENT(pc); \
     BasePC = m68kcontext.Fetch[(pc >> M68K_FETCHSFT) & M68K_FETCHMASK];    \
     PC = (u16*)((pc & M68K_ADR_MASK) + BasePC);	\
 }
@@ -294,6 +301,7 @@ typedef signed int	s32;
 #define SET_PC(A)               \
 { \
     u32 pc = A; \
+    FORCE_ALIGNMENT(pc); \
     BasePC = m68kcontext.Fetch[(pc >> M68K_FETCHSFT) & M68K_FETCHMASK];    \
     BasePC -= pc & 0xFF000000;    \
     PC = (u16*)(pc + BasePC); \
@@ -734,7 +742,9 @@ static FAMEC_EXTRA_INLINE u32 execute_exception(s32 vect, u32 oldPC, u32 oldSR)
 #ifndef FAMEC_32BIT_PC
 	newPC&=M68K_ADR_MASK
 #endif
+#ifdef FAMEC_CHECK_BRANCHES
 	newPC&=~1; // don't crash on games with bad vector tables
+#endif
 
 	// SET_PC(newPC)
 
@@ -948,6 +958,7 @@ famec_End:
 #ifdef PICODRIVE_HACK
 dualcore_mode:
 
+	while (1)
 	{
 		extern int SekCycleAim, SekCycleCnt, SekCycleAimS68k, SekCycleCntS68k;
 		#define PS_STEP_M68K ((488<<16)/20) // ~24
@@ -989,7 +1000,6 @@ dualcore_mode:
 			}
 			cycles = m68kcontext.io_cycle_counter = 0;
 		}
-		goto dualcore_mode;
 	}
 #endif