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include/_6525.h

@@ -0,0 +1,38 @@
+/*
+ * _6525.h
+ *
+ * Ullrich von Bassewitz, 22.09.1998
+ *
+ * Internal include file, do not use directly.
+ *
+ */
+
+
+
+#ifndef __6525_H
+#define __6525_H
+
+
+
+/* Define a structure with the 6525 register offsets. The shadow registers
+ * (if port C is unused) are currently not implemented, we would need a
+ * union to do that, however that would introduce an additional name.
+ */
+struct __6525 {
+    unsigned char	pra;		/* Port register A */
+    unsigned char	prb;		/* Port register B */
+    unsigned char      	prc;		/* Port register C */
+    unsigned char	ddra;		/* Data direction register A */
+    unsigned char	ddrb;		/* Data direction register B */
+    unsigned char	ddrc;  	       	/* Data direction register C */
+    unsigned char	cr;		/* Control register */
+    unsigned char	air;		/* Active interrupt register */
+};
+
+
+
+/* End of _6525.h */
+#endif
+
+
+