added very simple example user prog for adding.

1 files changed, 37 insertions, 0 deletions

diff --git a/userspace/add.c b/userspace/add.c
new file mode 100644
index 0000000..17ddb64
--- /dev/null
+++ b/userspace/add.c
@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include <string.h>
+#include "syscalls.c"
+#include "../fs/fs.h"
+
+
+int main(int argc, char **argv) 
+{
+    syscalls_init();
+
+    FILE *input;
+    input=fopen(1,"r");
+    char *buf=malloc(256);
+
+    int sum=0;
+    int i=0;
+
+    while(1)
+    {
+	printf("enter numer %i: ",i+1);
+        fgets(buf,255,input);
+	if(buf[1]=='x')break;
+	i++;
+	sum+=atoi(buf);
+
+    }
+
+    printf("sum = %i \n",sum);
+    printf("avg = %i \n\n",sum/i);
+
+    execve(15,0,0);
+}
+
+
+
+
+