diff -r 000000000000 -r 0c6405ab2ff4 npp/02.read_uint16_ASCII.c.x
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/npp/02.read_uint16_ASCII.c.x	Mon Jan 26 22:08:20 2009 -0500
@@ -0,0 +1,90 @@
+/* purpose: conversion of binary data with little-endian to ASCII
+   Sep. 8, 2006 by Maosheng Zhao */
+
+/* I also accounts for the possible different CPU on different platforms,
+   and therefore, it should work on different machines without problem */
+
+#include<stdio.h>
+#define COLS 7200
+#define ROWS 3600
+#define DATA_TYPE unsigned short
+
+/*$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$*/
+#define IN_FILE_NAME  "Npp_0.05deg_mean.int16"
+#define OUT_FILE_NAME "Npp_0.05deg_mean.ASCII2"
+/*$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$*/
+int main()
+{
+    /* definiation of variables will be used */
+    FILE *in_f, *out_f;
+    static DATA_TYPE data_in[ROWS][COLS];
+    int i,j;
+
+    /* the follow definition is for determination the type of CPU */
+    int  is_big_endian=0;
+    short one=1;
+    char *cp;
+
+    /* define a buffer pointer to swap bytes if it is big-endian CPU */
+    char temp_char[sizeof(DATA_TYPE)];
+    DATA_TYPE *buffer_data; 
+    int m;
+
+    /*################################################################*/
+    /* main program starts */
+    /* open the data file and read all the data */
+    in_f = fopen(IN_FILE_NAME,"rb");
+    if(in_f == NULL)
+    {
+	printf("cannot open %s, exit...\n",IN_FILE_NAME);
+	exit(0);
+    }
+    else  /* reading the data */
+    {
+	/* tell the type of CPU */
+	cp = (char*)&one;
+	if(*cp == 0)
+	   is_big_endian = 1;  /* yes, this is a big-endian CPU */
+	else
+	   is_big_endian = 0;  /* this is a little-endian CPU */
+
+	if(is_big_endian == 0)
+	{
+	   printf("This is a little-endian CPU, no need to swap bytes\n");
+	   printf("reading data now, please waiting for...\n");
+	   fread(data_in,sizeof(DATA_TYPE),COLS*ROWS,in_f);
+	}
+	else
+	{
+	   printf("This is a big-endian CPU, which needs to swap bytes\n");
+	   printf("reading data now, please waiting for...\n");
+	   for(i=0;i<ROWS;i++)
+		for(j=0;j<COLS;j++)
+		{
+	   	   for(m=0;m<sizeof(DATA_TYPE);m++)
+			fread(&temp_char[sizeof(DATA_TYPE)-1-m],1,1,in_f);
+
+		   /* swap the byte order */
+		   buffer_data = (DATA_TYPE*)temp_char;
+		   data_in[i][j] = *buffer_data;
+		} /* end of nested loops for i and j */
+	}
+    }
+
+    /* close the input file */
+    fclose(in_f);
+
+
+    /* write the ASCII to a new file */
+    out_f = fopen(OUT_FILE_NAME,"w");
+    printf("Please waiting for writing data to %s\n",OUT_FILE_NAME);
+    for(i=0;i<ROWS;i++)
+	for(j=0;j<COLS;j++)
+	    fprintf(out_f,"%6d\n",data_in[i][j]);
+
+    fclose(out_f);
+
+    printf("Finished conversion of binary to ASCII\n");
+
+    return(0);
+}