--- gcc/config/fx80/fx80.h	2018/04/24 18:10:25	1.1
+++ gcc/config/fx80/fx80.h	2018/04/24 18:15:28	1.1.1.2
@@ -26,7 +26,7 @@ the Free Software Foundation, 675 Mass A
 
 /* Names to predefine in the preprocessor for this target machine.  */
 
-#define CPP_PREDEFINES "-Dmc68000 -Dalliant -Dunix"
+#define CPP_PREDEFINES "-Dmc68000 -Dalliant -Dunix -Asystem(unix) -Acpu(m68k) -Amachine(m68k)"
 
 /* Print subsidiary information on the compiler version in use.  */
 
@@ -841,10 +841,9 @@ extern enum reg_class regno_reg_class[];
 /* Nonzero if access to memory by bytes is slow and undesirable.  */
 #define SLOW_BYTE_ACCESS 0
 
-/* Define if shifts truncate the shift count
-   which implies one can omit a sign-extension or zero-extension
-   of a shift count.  */
-#define SHIFT_COUNT_TRUNCATED
+/* Define this to be nonzero if shift instructions ignore all but the low-order
+   few bits. */
+#define SHIFT_COUNT_TRUNCATED 1
 
 /* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits
    is done just by pretending it is already truncated.  */