+/** Test register bank allocation for the "using" keyword.
+ using: no_proto, impl, both
+*/
+#include <testfwk.h>
+
+#define _{using}
+
+#if defined (SDCC_mcs51) && defined (SDCC_MODEL_SMALL)
+
+ #ifndef _no_proto
+ #if defined (_both)
+ void my_isr (void) interrupt (1) using (1);
+ #else
+ void my_isr (void) interrupt (1);
+ #endif
+ #endif
+
+ data char array[8];
+
+ void my_isr (void) interrupt (1) using (1)
+ {
+ array[array[0]] = 1; //generate some register pressure
+ }
+
+#endif
+
+void testUsing (void)
+{
+#if defined (SDCC_mcs51) && defined (SDCC_MODEL_SMALL)
+ ASSERT ((unsigned char)(&array[0]) >= 0x10);
+ ASSERT ((unsigned char)&__numTests >= 0x10);
+#endif
+}