More general changes and cleanups, mostly in machine/ now. Also updated SCSI and Network device drivers to use new device init method.

src/machine/machine_xt_laserxt.c

@@ -7,8 +7,7 @@
 #include "../cpu/cpu.h"
 #include "../io.h"
 #include "../mem.h"
-#include "machine_xt.h"
-#include "machine_xt_laserxt.h"
+#include "machine.h"
 
 
 static int laserxt_emspage[4];
@@ -129,8 +128,10 @@ static void laserxt_init(void)
 }
 
 
-void machine_xt_laserxt_init(void)
+void
+machine_xt_laserxt_init(machine_t *model)
 {
-        machine_xt_init();
+        machine_xt_init(model);
+
         laserxt_init();
 }