1 files changed, 53 insertions, 0 deletions
diff --git a/reference/C/PROBLEMS/binary_op.c b/reference/C/PROBLEMS/binary_op.c
new file mode 100644
index 0000000..2e5a214
--- /dev/null
+++ b/reference/C/PROBLEMS/binary_op.c
@@ -0,0 +1,53 @@
+/************************************************************************
+ *
+ * Purpose: Display a byte in binary format.
+ * 
+ * Author:  M.J. Leslie.
+ *
+ * Date:    19-Mar-95
+ *
+ * Improvements: 
+ *	1) Return the result to the calling function.
+ *	2) Make it work on integers (4 bytes long).
+ *
+ ************************************************************************/
+
+void binary_op(char byte);		/* Print a byte in binary.	*/
+
+/************************************************************************/
+
+main()
+   {
+   char byte=55;	
+
+   binary_op(byte);			/* Print a byte in binary.	*/
+   }
+
+/************************************************************************/
+
+void binary_op(char byte)
+   {
+   int count=8;				/* Number of bits in a byte.	*/
+
+   while(count--)
+      {
+					/* AND the high order bit (the
+					 * left one) If the bit is set,
+					 * print a ONE.			*/
+      printf("%d", ( byte & 128 ) ? 1 : 0 );
+
+					/* Move all the bits LEFT.	*/
+      byte <<= 1;
+      } 
+
+   printf("\n");
+   }
+
+/************************************************************************
+ *
+ *	Program results.
+ *	----------------
+ *
+ *	00110111
+ *
+ ************************************************************************/