Adding minimal set of changes to the savestate procedures to ensure full re-record sync

core/input_hw/gamepad.c

@@ -40,13 +40,7 @@
 #include "shared.h"
 #include "gamepad.h"
 
-static struct
-{
-  uint8 State;
-  uint8 Counter;
-  uint8 Timeout;
-  uint32 Latency;
-} gamepad[MAX_DEVICES];
+struct gamepad_t gamepad[MAX_DEVICES];
 
 static struct
 {
@@ -56,7 +50,6 @@ static struct
 
 static uint8 latch;
 
-
 void gamepad_reset(int port)
 {
   /* default state (Gouketsuji Ichizoku / Power Instinct, Samurai Spirits / Samurai Shodown) */

core/input_hw/gamepad.h

@@ -40,6 +40,16 @@
 #ifndef _GAMEPAD_H_
 #define _GAMEPAD_H_
 
+struct gamepad_t
+{
+  uint8 State;
+  uint8 Counter;
+  uint8 Timeout;
+  uint32 Latency;
+};
+
+extern struct gamepad_t gamepad[MAX_DEVICES];
+
 /* Function prototypes */
 extern void gamepad_reset(int port);
 extern void gamepad_refresh(int port);

core/shared.h

@@ -21,6 +21,7 @@
 #include "membnk.h"
 #include "io_ctrl.h"
 #include "input.h"
+#include "gamepad.h"
 #include "sound.h"
 #include "psg.h"
 #include "ym2413.h"

core/state.c

@@ -71,6 +71,9 @@ int state_load(unsigned char *state)
     zbank_memory_map[i].write   = zbank_write_vdp;
   }
 
+  /* SYSTEM */
+  load_param(&pause_b, sizeof(pause_b));
+
   /* GENESIS */
   if ((system_hw & SYSTEM_PBC) == SYSTEM_MD)
   {
@@ -109,6 +112,9 @@ int state_load(unsigned char *state)
     io_reg[0] = 0x80 | (region_code >> 1);
   }
 
+  /* CONTROLLERS */
+  load_param(gamepad, sizeof(gamepad));
+
   /* VDP */
   bufferptr += vdp_context_load(&state[bufferptr]);
 
@@ -152,6 +158,7 @@ int state_load(unsigned char *state)
     load_param(&m68k.cycles, sizeof(m68k.cycles));
     load_param(&m68k.int_level, sizeof(m68k.int_level));
     load_param(&m68k.stopped, sizeof(m68k.stopped));
+    load_param(&m68k.refresh_cycles, sizeof(m68k.refresh_cycles));
   }
 
   /* Z80 */ 
@@ -200,6 +207,9 @@ int state_save(unsigned char *state)
   memcpy(version,STATE_VERSION,16);
   save_param(version, 16);
 
+  /* SYSTEM */
+  save_param(&pause_b, sizeof(pause_b));
+
   /* GENESIS */
   if ((system_hw & SYSTEM_PBC) == SYSTEM_MD)
   {
@@ -215,7 +225,10 @@ int state_save(unsigned char *state)
 
   /* IO */
   save_param(io_reg, sizeof(io_reg));
-
+  
+  /* CONTROLLERS */
+  save_param(gamepad, sizeof(gamepad));
+  
   /* VDP */
   bufferptr += vdp_context_save(&state[bufferptr]);
 
@@ -251,6 +264,7 @@ int state_save(unsigned char *state)
     save_param(&m68k.cycles, sizeof(m68k.cycles));
     save_param(&m68k.int_level, sizeof(m68k.int_level));
     save_param(&m68k.stopped, sizeof(m68k.stopped));
+    save_param(&m68k.refresh_cycles, sizeof(m68k.refresh_cycles));
   }
 
   /* Z80 */ 

core/system.c

@@ -51,7 +51,7 @@ uint8 system_bios;
 uint32 system_clock;
 int16 SVP_cycles = 800; 
 
-static uint8 pause_b;
+uint8 pause_b;
 static EQSTATE eq[2];
 static int16 llp,rrp;
 

core/system.h

@@ -103,6 +103,7 @@ extern int16 SVP_cycles;
 extern uint8 system_hw;
 extern uint8 system_bios;
 extern uint32 system_clock;
+extern uint8 pause_b;
 
 /* Function prototypes */
 extern int audio_init(int samplerate, double framerate);