--- a/src/dreamcast.c	Sun Dec 11 12:00:09 2005 +0000
+++ b/src/dreamcast.c	Mon Dec 12 13:11:11 2005 +0000
@@ -4,35 +4,110 @@
 #include "asic.h"
 #include "ide.h"
 #include "dreamcast.h"
+#include "modules.h"
+
 /* Central switchboard for the system */
 
+#define MAX_MODULES 32
+static int num_modules = 0;
+static int dreamcast_state = 0;
+dreamcast_module_t modules[];
+
+void dreamcast_configure( )
+{
+    dreamcast_register_module( &mem_module );
+    dreamcast_register_module( &sh4_module );
+    dreamcast_register_module( &asic_module );
+    dreamcast_register_module( &pvr2_module );
+    dreamcast_register_module( &aica_module );
+    dreamcast_register_module( &maple_module );
+    dreamcast_register_module( &ide_module );
+}
+
+void dreamcast_register_module( dreamcast_module_t module ) 
+{
+    modules[num_modules++] = module;
+}
+
+
 void dreamcast_init( void )
 {
-    mem_init();
-    mem_create_ram_region( 0x0C000000, 16 MB, MEM_REGION_MAIN );
-    mem_create_ram_region( 0x05000000, 8 MB, MEM_REGION_VIDEO );
-    mem_create_ram_region( 0x00800000, 2 MB, MEM_REGION_AUDIO );
-    mem_create_ram_region( 0x00703000, 8 KB, MEM_REGION_AUDIO_SCRATCH ); /*???*/
+    int i;
+    dreamcast_configure();
+    for( i=0; i<num_modules; i++ ) {
+	if( modules[i]->init != NULL )
+	    modules[i]->init();
+    }
     mem_load_rom( "dcboot.rom", 0x00000000, 0x00200000, 0x89f2b1a1 );
     mem_load_rom( "dcflash.rom",0x00200000, 0x00020000, 0x357c3568 );
-
-    sh4_init();
-    asic_init();
-    pvr2_init();
-    aica_init();
-    ide_reset();
-
 }
 
 void dreamcast_reset( void )
 {
-    sh4_reset();
-    mem_reset();
-//    pvr2_reset();
-    aica_reset();
+    int i;
+    for( i=0; i<num_modules; i++ ) {
+	if( modules[i]->reset != NULL )
+	    modules[i]->reset();
+    }
 }
 
+void dreamcast_start( void )
+{
+    int i;
+    for( i=0; i<num_modules; i++ ) {
+	if( modules[i]->start != NULL )
+	    modules[i]->start();
+    }
+}
 void dreamcast_stop( void )
 {
-    sh4_stop();
+    int i;
+    for( i=0; i<num_modules; i++ ) {
+	if( modules[i]->stop != NULL )
+	    modules[i]->stop();
+    }
 }
+
+struct save_state_header {
+    char magic[16];
+    uint32_t version;
+};
+
+void dreamcast_load_state( FILE *f )
+{
+    int i;
+    struct save_state_header header;
+
+    fread( &header, sizeof(header), 1, f );
+    if( strncmp( header.magic, DREAMCAST_SAVE_MAGIC, 16 ) != 0 ) {
+	ERROR( "Not a DreamOn save state file" );
+	return;
+    }
+    if( header.version != DREAMCAST_SAVE_VERSION ) {
+	ERROR( "DreamOn save state version not supported" );
+	return;
+    }
+
+    for( i=0; i<num_modules; i++ ) {
+	if( modules[i]->load != NULL )
+	    modules[i]->load(f);
+	else if( modules[i]->reset != NULL )
+	    modules[i]->reset();
+    }
+}
+
+void dreamcast_save_state( FILE *f )
+{
+    int i;
+    struct save_state_header header;
+    
+    strcpy( header.magic, DREAMCAST_SAVE_MAGIC );
+    header.version = DREAMCAST_SAVE_VERSION;
+    fwrite( &header, sizeof(header), 1, f );
+    for( i=0; i<num_modules; i++ ) {
+	if( modules[i]->save != NULL ) {
+	    modules[i]->save(f);
+	}
+    }
+}
+