Initial version

code/bin/noff.h

@@ -0,0 +1,28 @@
+/* noff.h 
+ *     Data structures defining the Nachos Object Code Format
+ *
+ *     Basically, we only know about three types of segments:
+ *	code (read-only), initialized data, and unitialized data
+ */
+
+#ifndef _NOFF_H
+#define _NOFF_H
+#define NOFFMAGIC	0xbadfad 	/* magic number denoting Nachos 
+					 * object code file 
+					 */
+
+typedef struct segment {
+  int virtualAddr;		/* location of segment in virt addr space */
+  int inFileAddr;		/* location of segment in this file */
+  int size;			/* size of segment */
+} Segment;
+
+typedef struct noffHeader {
+   int noffMagic;		/* should be NOFFMAGIC */
+   Segment code;		/* executable code segment */ 
+   Segment initData;		/* initialized data segment */
+   Segment uninitData;		/* uninitialized data segment --
+				 * should be zero'ed before use 
+				 */
+} NoffHeader;
+#endif /* _NOFF_H */