rtl refactoring

runtime/fileio/fileio.S

@@ -0,0 +1,49 @@
+
+#include "../config.h"
+
+# .section .FileIO
+
+# .type vx_close, @function
+# .global vx_close
+# vx_close:
+# 	nop
+# 	ret
+# 	nop
+# 	nop
+
+
+# .type vx_fstat, @function
+# .global vx_fstat
+# vx_fstat:
+# 	nop
+# 	ret
+# 	nop
+# 	nop
+
+# .type vx_isatty, @function
+# .global vx_isatty
+# vx_isatty:
+# 	nop
+# 	ret
+# 	nop
+# 	nop
+
+# .type vx_read, @function
+# .global vx_read
+# vx_read:
+# 	nop
+# 	ret
+# 	nop
+# 	nop
+
+# .type vx_write, @function
+# .global vx_write
+# vx_write:
+# 	nop
+# 	ret
+# 	nop
+# 	nop
+
+
+
+