creating interface i/o functions

src/interface.c

@@ -0,0 +1,35 @@
+#include <curses.h>
+#include "inc/interface.h"
+#include "inc/memory.h"
+
+void io_init()
+{
+    initscr();
+    noecho();
+    cbreak();
+    nodelay(stdscr, TRUE);
+}
+
+void input()
+{
+    int ch = getch();
+    if (ch != ERR)
+    {
+        keyboard_buffer  = ch | 0x80;
+        keyboard_control = 0xFF;
+    }
+}
+
+void output()
+{
+    // display is ready to ouptup
+    if (display_buffer & 0x80)
+    {
+        // outputs the buffer character
+        display_buffer = display_buffer & 0x7F;
+        addch(display_buffer);
+        //refresh();
+    }
+    
+    //refresh();
+}