Re-organisation of video emulation.

src/vid_ics2595.h

@@ -1,2 +1,12 @@
-void ics2595_write(int strobe, int dat);
-extern double ics2595_output_clock;
+typedef struct ics2595_t
+{
+        int oldfs3, oldfs2;
+        int dat;
+        int pos;
+        int state;
+
+        double clocks[16];
+        double output_clock;
+} ics2595_t;
+
+void ics2595_write(ics2595_t *ics2595, int strobe, int dat);