dpx2.h

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/* Definitions of target machine for GNU compiler.  
   Bull DPX/2 200 and 300 systems (m68k, SysVr3).
   Copyright (C) 1987, 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
   Contributed by Frederic Pierresteguy ([e-mail]).

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 2, 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, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */


#ifndef USE_GAS
#define MOTOROLA	   /* Use Motorola syntax rather than "MIT" */
#define SGS_NO_LI	   /* Suppress jump table label usage */
#define VERSADOS           /* This is the name of the assembler we have */
#endif

#include "m68k/m68k.h"
#undef SELECT_RTX_SECTION
#include "svr3.h"

/* See m68k.h.  7 means 68020 with 68881.
 * We really have 68030 and 68882,
 * but this will get us going.  
 */
#ifndef TARGET_DEFAULT
#define TARGET_DEFAULT (MASK_BITFIELD|MASK_68881|MASK_68020)
#endif

#define OBJECT_FORMAT_COFF
#define NO_SYS_SIGLIST

#ifdef CPP_PREDEFINES
#undef CPP_PREDEFINES
#endif
/*
 * define all the things the compiler should
 */
#ifdef ncl_mr
# define CPP_PREDEFINES "-Dunix -Dbull -DDPX2 -DSVR3 -Dmc68000 -Dmc68020 -Dncl_mr=1 -D_BULL_SOURCE -D_POSIX_SOURCE -D_XOPEN_SOURCE -Asystem(unix) -Asystem(svr3)  -Acpu(m68k) -Amachine(m68k)"
#else
# ifdef ncl_el
# define CPP_PREDEFINES "-Dunix -Dbull -DDPX2 -DSVR3 -Dmc68000 -Dmc68020 -Dncl_el -D_BULL_SOURCE -D_POSIX_SOURCE -D_XOPEN_SOURCE -Asystem(unix) -Asystem(svr3)  -Acpu(m68k) -Amachine(m68k)"
# else
#   define CPP_PREDEFINES "-Dunix -Dbull -DDPX2 -DSVR3 -Dmc68000 -Dmc68020 -D_BULL_SOURCE -D_POSIX_SOURCE -D_XOPEN_SOURCE -Asystem(unix) -Asystem(svr3)  -Acpu(m68k) -Amachine(m68k)"
# endif
#endif

#undef	CPP_SPEC
/*
 * you can't get a DPX/2 without a 68882 but allow it
 * to be ignored...
 */
# define __HAVE_68881__ 1
# define CPP_SPEC "%{!msoft-float:-D__HAVE_68881__ }"

#define HAVE_ATEXIT
#undef DO_GLOBAL_CTORS_BODY		/* don't use svr3.h version */
#undef DO_GLOBAL_DTORS_BODY

#ifndef USE_GAS
/*
 * handle the native MOTOROLA VERSAdos assembler.
 */

/* See m68k.h.  3 means 68020 with 68881 and no bitfield
 * bitfield instructions do not seem to work a clean way.
 */
#undef TARGET_DEFAULT
#define TARGET_DEFAULT (MASK_68881|MASK_68020)

/* The native assembler doesn't support fmovecr.  */
#define NO_ASM_FMOVECR

#undef EXTRA_SECTIONS
#undef EXTRA_SECTION_FUNCTIONS
#undef READONLY_DATA_SECTION
#define READONLY_DATA_SECTION data_section
#undef SELECT_SECTION
#undef SELECT_RTX_SECTION
#define fini_section() while (0)

#undef CTORS_SECTION_ASM_OP
#define CTORS_SECTION_ASM_OP "\tsection 15"
#undef DTORS_SECTION_ASM_OP
#define DTORS_SECTION_ASM_OP "\tsection 15"
#undef INIT_SECTION_ASM_OP
#define BSS_SECTION_ASM_OP     "\tsection 14"
#undef TEXT_SECTION_ASM_OP
#define TEXT_SECTION_ASM_OP    "\tsection 10"
#undef DATA_SECTION_ASM_OP
#define DATA_SECTION_ASM_OP  "\tsection 15"


/* Don't try using XFmode.  */
#undef LONG_DOUBLE_TYPE_SIZE
#define LONG_DOUBLE_TYPE_SIZE 64

/* Define if you don't want extended real, but do want to use the
   software floating point emulator for REAL_ARITHMETIC and
   decimal <-> binary conversion. */
#define REAL_ARITHMETIC 

#undef ASM_OUTPUT_SOURCE_FILENAME
#define ASM_OUTPUT_SOURCE_FILENAME(FILE, NA)	\
  do { fprintf ((FILE), "\t.file\t'%s'\n", (NA)); } while (0)

/* Assembler pseudos to introduce constants of various size.  */

#undef ASM_BYTE_OP
#define ASM_BYTE_OP "\tdc.b"
#undef ASM_LONG
#define ASM_LONG "\tdc.l"

/* 
 * we don't seem to support any of:
 * .globl
 * .even
 * .align
 * .ascii
 */
#undef ASM_OUTPUT_SKIP
#define ASM_OUTPUT_SKIP(FILE,SIZE)  \
  fprintf (FILE, "\tdcb.b %u,0\n", (SIZE))

#undef GLOBAL_ASM_OP 
#define GLOBAL_ASM_OP "\txdef"

#undef ASM_OUTPUT_ALIGN
#define ASM_OUTPUT_ALIGN(FILE,LOG)	\
  if ((LOG) >= 1)			\
    fprintf (FILE, "\tds.w 0\n");


#define STRING_LIMIT	(0)
#undef ASM_APP_ON
#define ASM_APP_ON ""
#undef ASM_APP_OFF
#define ASM_APP_OFF ""
/*
 * dc.b 'hello, world!'
 * dc.b 10,0
 * is how we have to output "hello, world!\n"
 */
#undef ASM_OUTPUT_ASCII
#define ASM_OUTPUT_ASCII(asm_out_file, p, thissize)		\
  do { register int i, c, f=0, len=0;				\
  for (i = 0; i < thissize; i++) { 				\
    c = p[i];							\
    if (c == '\'' || c < ' ' || c > 127) {			\
      switch(f) {						\
      case 0: /* need to output dc.b etc */			\
	fprintf(asm_out_file, "\tdc.b %d", c);			\
	f=1;							\
	break;							\
      case 1:							\
	fprintf(asm_out_file, ",%d", c);			\
	break;							\
      default:							\
	/* close a string */					\
	fprintf(asm_out_file, "'\n\tdc.b %d", c);		\
	f=1;							\
	break;							\
      }								\
    } else {							\
      switch(f) {						\
      case 0:							\
	fprintf(asm_out_file, "\tdc.b '%c", c);			\
	f=2;							\
	break;							\
      case 2:							\
        if (len >= 79) {					\
          fprintf(asm_out_file, "'\n\tdc.b '%c", c); 	        \
          len = 0; }						\
        else							\
	  fprintf(asm_out_file, "%c", c);			\
	break;							\
      default:							\
	len = 0;						\
	fprintf(asm_out_file, "\n\tdc.b '%c", c);		\
	f=2;							\
	break;							\
      }								\
    }								\
    len++;                                   			\
  }								\
  if (f==2)							\
    putc('\'', asm_out_file);					\
  putc('\n', asm_out_file); } while (0)

/* This is how to output an insn to push a register on the stack.
   It need not be very fast code.  */

#undef ASM_OUTPUT_REG_PUSH
#define ASM_OUTPUT_REG_PUSH(FILE,REGNO)  \
  fprintf (FILE, "\tmove.l %s,-(sp)\n", reg_names[REGNO])

/* This is how to output an insn to pop a register from the stack.
   It need not be very fast code.  */

#undef ASM_OUTPUT_REG_POP
#define ASM_OUTPUT_REG_POP(FILE,REGNO)  \
  fprintf (FILE, "\tmove.l (sp)+,%s\n", reg_names[REGNO])


#define PUT_SDB_FUNCTION_START(LINE)		\
  fprintf (asm_out_file,			\
	   "\t.def\t.bf%s\t.val\t*%s\t.scl\t101%s\t.line\t%d%s\t.endef\n", \
	   SDB_DELIM, SDB_DELIM, SDB_DELIM, (LINE), SDB_DELIM)

#define PUT_SDB_FUNCTION_END(LINE)		\
  fprintf (asm_out_file,			\
	   "\t.def\t.ef%s\t.val\t*%s\t.scl\t101%s\t.line\t%d%s\t.endef\n", \
	   SDB_DELIM, SDB_DELIM, SDB_DELIM, (LINE), SDB_DELIM)

#define PUT_SDB_BLOCK_START(LINE)		\
  fprintf (asm_out_file,			\
	   "\t.def\t.bb%s\t.val\t*%s\t.scl\t100%s\t.line\t%d%s\t.endef\n", \
	   SDB_DELIM, SDB_DELIM, SDB_DELIM, (LINE), SDB_DELIM)

#define PUT_SDB_BLOCK_END(LINE)			\
  fprintf (asm_out_file,			\
	   "\t.def\t.eb%s\t.val\t*%s\t.scl\t100%s\t.line\t%d%s\t.endef\n",  \
	   SDB_DELIM, SDB_DELIM, SDB_DELIM, (LINE), SDB_DELIM)

#define PUT_SDB_EPILOGUE_END(NAME)	

/* Output type in decimal not in octal as done in sdbout.c */	
#define PUT_SDB_TYPE(a) fprintf(asm_out_file, "\t.type\t0%d%s", a, SDB_DELIM)
		
#undef FUNCTION_PROLOGUE
#define FUNCTION_PROLOGUE(FILE, SIZE)                                 \
{                                                                     \
  register int regno;                                                 \
  register int mask = 0;                                              \
  int num_saved_regs = 0, first = 1;                                  \
  extern char call_used_regs[];                                       \
  int fsize = ((SIZE) + 3) & -4;                                      \
                                                                      \
                                                                      \
  if (frame_pointer_needed)                                           \
    {                                                                 \
      /* Adding negative number is faster on the 68040.  */           \
      if (fsize < 0x8000 && !TARGET_68040)                            \
	{                                                             \
	  fprintf (FILE, "\tlink %s,#%d\n", 	                      \
		       reg_names[FRAME_POINTER_REGNUM], -fsize);      \
	}                                                             \
      else if (TARGET_68020)                                          \
	{                                                             \
	  fprintf (FILE, "\tlink %s,#%d\n",	                      \
		       reg_names[FRAME_POINTER_REGNUM], -fsize);      \
	}                                                             \
      else                                                            \
	{                                                             \
	  fprintf (FILE, "\tlink %s,#0\n\tadd.l #%d,sp\n",	      \
		       reg_names[FRAME_POINTER_REGNUM], -fsize);      \
	}							      \
    }								      \
  else if (fsize)						      \
    {								      \
      /* Adding negative number is faster on the 68040.  */	      \
      if (fsize + 4 < 0x8000)					      \