--- gcc/config/m68k/tower.h	2018/04/24 18:10:24	1.1.1.1
+++ gcc/config/m68k/tower.h	2018/04/24 18:28:26	1.1.1.4
@@ -1,5 +1,5 @@
 /* Definitions of target machine for GNU compiler.
-   Copyright (C) 1990 Free Software Foundation, Inc.
+   Copyright (C) 1990, 1994 Free Software Foundation, Inc.
 
    Written by Robert Andersson, International Systems, Oslo, Norway.
    Please send bug reports, questions and improvements to ra@intsys.no.
@@ -31,7 +31,8 @@ GNU General Public License for more deta
 
 You should have received a copy of the GNU General Public License
 along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
 
 
 #include "m68k/m68k.h"
@@ -47,22 +48,22 @@ the Free Software Foundation, 675 Mass A
 
 /* Names to predefine in the preprocessor for this target machine.  */
 
-#define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_200"
+#define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_200 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
 
 #if 0  /* It is incorrect to test these symbols.
 	  They describe the host, not the target.
 	  It should not matter which model is specified.  */
 #ifdef tower32_600
-#define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_600"
+#define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_600 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
 #endif
 #ifdef tower32_700
-#define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_700"
+#define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_700 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
 #endif
 #ifdef tower32_800
-#define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_800"
+#define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_800 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
 #endif
 #ifdef tower32_850
-#define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_850"
+#define CPP_PREDEFINES "-Dunix -Dtower32 -Dtower32_850 -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)"
 #endif
 #endif
 
@@ -96,6 +97,12 @@ the Free Software Foundation, 675 Mass A
  "%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%a6", "%sp",                      \
  "%fp0", "%fp1", "%fp2", "%fp3", "%fp4", "%fp5", "%fp6", "%fp7"};
 
+#undef REGISTER_PREFIX
+#define REGISTER_PREFIX "%"
+
+#undef IMMEDIATE_PREFIX
+#define IMMEDIATE_PREFIX "&"
+
 /* We do not want leading underscores.  */
 
 #undef ASM_OUTPUT_LABELREF