Initial revision

From-SVN: r7584

2 files changed, 143 insertions, 0 deletions

diff --git a/gcc/config/m68k/atari.h b/gcc/config/m68k/atari.h
new file mode 100644
index 0000000..8b18c5a
--- /dev/null
+++ b/gcc/config/m68k/atari.h
@@ -0,0 +1,100 @@
+/* Definitions of target machine for GNU compiler.
+   Atari TT ASV version.
+   Copyright (C) 1994 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 "m68k/m68kv4.h"
+
+/* Alter assembler syntax for fsgldiv and fsglmul.
+   It is highly likely that this is a generic SGS m68k assembler dependency.
+   If so, it should eventually be handled in the m68k/sgs.h ASM_OUTPUT_OPCODE
+   macro, like the other SGS assembler quirks.  -fnf */
+
+#define FSGLDIV_USE_S		/* Use fsgldiv.s, not fsgldiv.x */
+#define FSGLMUL_USE_S		/* Use fsglmul.s, not fsglmul.x */
+
+/* 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 making the 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 (switch_table_difference_label_flag)				\
+    asm_fprintf ((FILE), "\t%s %LLD%d,%LL%d\n", SET_ASM_OP, (NUM), (NUM));\
+  switch_table_difference_label_flag = 0;				\
+} while (0)
+
+int switch_table_difference_label_flag;
+
+/* This definition of ASM_OUTPUT_ASCII is the same as the one in m68k/sgs.h,
+   which has been overridden by the one in svr4.h.  However, we can't use
+   the one in svr4.h because the ASV 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), "\t%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\t%s ", BYTE_ASM_OP);		\
+	  }							\
+	else							\
+	  {							\
+	    putc (',', (FILE));					\
+	  }							\
+      }								\
+  } while (sp < (LEN));						\
+  putc ('\n', (FILE));						\
+}
+
+/* Override these for the sake of an assembler bug: the ASV
+   assembler can't handle .LC0@GOT syntax.  This pollutes the final
+   table for shared librarys but what's a poor soul to do; sigh... RFH */
+
+#undef ASM_GENERATE_INTERNAL_LABEL
+#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)	\
+  if (flag_pic && !strcmp(PREFIX,"LC"))			\
+    sprintf (LABEL, "*%s%%%d", PREFIX, NUM);		\
+  else							\
+    sprintf (LABEL, "*%s%s%d", LOCAL_LABEL_PREFIX, PREFIX, NUM)
+
+#undef ASM_OUTPUT_INTERNAL_LABEL
+#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM)	\
+  if (flag_pic && !strcmp(PREFIX,"LC"))			\
+    asm_fprintf (FILE, "%s%%%d:\n", PREFIX, NUM);	\
+  else							\
+    asm_fprintf (FILE, "%0L%s%d:\n", PREFIX, NUM)
diff --git a/gcc/config/m68k/xm-atari.h b/gcc/config/m68k/xm-atari.h
new file mode 100644
index 0000000..7a40afe
--- /dev/null
+++ b/gcc/config/m68k/xm-atari.h
@@ -0,0 +1,43 @@
+/* Definitions of host machine for GNU compiler.
+   Atari TT ASV version.
+   Copyright (C) 1994 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 "m68k/xm-m68kv.h"	/* Use the System V flavor of m68k host */
+
+#define HAVE_VPRINTF            /* Host has vprintf() in library */
+
+/* ASV does not define HZ, so we have to do it ourselves. */
+
+#define HZ 128			/* System clock */
+
+/* Define FULL_PROTOTYPES for protoize.c, to get <unistd.h> included.
+   We need this file for things like R_OK, not necessarily prototypes. */
+
+#define FULL_PROTOTYPES
+
+#if defined (__GNUC__) && __GNUC__ == 1
+#define alloca __builtin_alloca
+#endif
+
+/* The m88k and mips ports make use of fancy_abort to give possibly helpful
+   abort information rather than just dumping core.  They do it in their
+   tm-* files.  It seems more logical that this is a characteristic of
+   the host machine and not the target machine, so we do it here. */
+
+#define abort fancy_abort       /* give possibly helpful abort info */