Initial revision

From-SVN: r222
1992-01-20 06:29:14 +00:00 · 1992-01-20 06:29:14 +00:00 · 70beb07542
commit 70beb07542
parent e0c17b2d5a
1 changed files with 118 additions and 0 deletions
--- a/gcc/config/m68k/amix.h
+++ b/gcc/config/m68k/amix.h
@ -0,0 +1,118 @@
+/* Definitions of target machine for GNU compiler.
+   Commodore Amiga A3000UX version.
+
+   Copyright (C) 1991 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 1, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+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.  */
+
+#include "m68kv4.h"
+
+/* Names to predefine in the preprocessor for this target machine.  For the
+   Amiga, these definitions match those of the native AT&T compiler.  Note
+   that we override the definition in m68kv4.h, where SVR4 is defined and
+   AMIX isn't. */
+
+#undef CPP_PREDEFINES
+#define CPP_PREDEFINES \
+  "-Dm68k -Dunix -DAMIX -Amachine(m68k) -Acpu(m68k) -Asystem(unix) -Alint(off)"
+
+/* This is the library routine that is used to transfer control from
+   the trampoline to the actual nested function.  FIXME:  This needs to
+   be implemented still.  -fnf */
+
+#undef TRANSFER_FROM_TRAMPOLINE
+
+/* At end of a switch table, define LDnnn iff the symbol LInnn was defined.
+   Some SGS assemblers have a bug such that "Lnnn-LInnn-2.b(pc,d0.l*2)"
+   fails to assemble.  Luckily "Lnnn(pc,d0.l*2)" produces the results
+   we want.  This difference can be accommodated by using an assembler
+   define such "LDnnn" to be either "Lnnn-LInnn-2.b", "Lnnn", or any other
+   string, as necessary.  This is accomplished via the ASM_OUTPUT_CASE_END
+   macro. (the Amiga assembler has this bug) */
+
+#undef ASM_OUTPUT_CASE_END
+#define ASM_OUTPUT_CASE_END(FILE,NUM,TABLE)				\
+do {									\
+  if (RTX_INTEGRATED_P (TABLE))						\
+    asm_fprintf ((FILE), "%s %LLD%d,%LL%d\n", SET_ASM_OP, (NUM), (NUM));\
+} while (0)
+
+/* This says how to output assembler code to declare an
+   uninitialized external linkage data object.  Under SVR4,
+   the linker seems to want the alignment of data objects
+   to depend on their types.  We do exactly that here.
+   [This macro overrides the one in svr4.h because the amix assembler
+    has a minimum default alignment of 4, and will not accept any
+    explicit alignment smaller than this.  -fnf] */
+
+#undef ASM_OUTPUT_ALIGNED_COMMON
+#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN)		\
+do {									\
+  fputs ("\t.comm\t", (FILE));						\
+  assemble_name ((FILE), (NAME));					\
+  fprintf ((FILE), ",%u,%u\n", (SIZE), MAX ((ALIGN) / BITS_PER_UNIT, 4)); \
+} while (0)
+
+/* This says how to output assembler code to declare an
+   uninitialized internal linkage data object.  Under SVR4,
+   the linker seems to want the alignment of data objects
+   to depend on their types.  We do exactly that here.
+   [This macro overrides the one in svr4.h because the amix assembler
+    has a minimum default alignment of 4, and will not accept any
+    explicit alignment smaller than this.  -fnf] */
+
+#undef ASM_OUTPUT_ALIGNED_LOCAL
+#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN)		\
+do {									\
+  fprintf ((FILE), "%s\t%s,%u,%u\n",					\
+	   BSS_ASM_OP, (NAME), (SIZE), MAX ((ALIGN) / BITS_PER_UNIT, 4)); \
+} while (0)
+
+/* This definition of ASM_OUTPUT_ASCII is the same as the one in m68ksgs.h,
+   which has been overridden by the one in svr4.h.  However, we can't use
+   the one in svr4.h because the amix assembler croaks on some of the
+   strings that it emits (such as .string "\"%s\"\n"). */
+
+#undef ASM_OUTPUT_ASCII
+#define ASM_OUTPUT_ASCII(FILE,PTR,LEN)				\
+{								\
+  register int sp = 0, lp = 0, ch;				\
+  fprintf ((FILE), "%s ", BYTE_ASM_OP);				\
+  do {								\
+    ch = (PTR)[sp];						\
+    if (ch > ' ' && ! (ch & 0x80) && ch != '\\')		\
+      {								\
+	fprintf ((FILE), "'%c", ch);				\
+      }								\
+    else							\
+      {								\
+	fprintf ((FILE), "0x%x", ch);				\
+      }								\
+    if (++sp < (LEN))						\
+      {								\
+	if ((sp % 10) == 0)					\
+	  {							\
+	    fprintf ((FILE), "\n%s ", BYTE_ASM_OP);		\
+	  }							\
+	else							\
+	  {							\
+	    putc (',', (FILE));					\
+	  }							\
+      }								\
+  } while (sp < (LEN));						\
+  putc ('\n', (FILE));						\
+}