gnu1987/gnu1988/gcc-1.21/tm-hp9k320.h

/* Definitions of target machine for GNU compiler.  HP-UX 68000/68020 version.
   Copyright (C) 1987, 1988 Free Software Foundation, Inc.

This file is part of GNU CC.

GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY.  No author or distributor
accepts responsibility to anyone for the consequences of using it
or for whether it serves any particular purpose or works at all,
unless he says so in writing.  Refer to the GNU CC General Public
License for full details.

Everyone is granted permission to copy, modify and redistribute
GNU CC, but only under the conditions described in the
GNU CC General Public License.   A copy of this license is
supposed to have been given to you along with GNU CC so you
can know your rights and responsibilities.  It should be in a
file named COPYING.  Among other things, the copyright notice
and this notice must be preserved on all copies.  */

/* Define USE_GAS if GCC is supposed to work with the GNU assembler,
   GNU linker and GNU debugger using DBX debugging information.
   (In other words, much of HPUX has been cast aside.)
   Undefine USE_GAS if you want GCC to feed the HP assembler.  */

/* #define USE_GAS */  /* Use tm-hpgnu.h if you want this.  */

/* Control assembler-syntax conditionals in m68k.md.  */

#ifndef USE_GAS
#define MOTOROLA
#define SGS
#define HPUX_ASM
#endif

#include "tm-m68k.h"

/* See tm-m68k.h.  7 means 68020 with 68881.  */

#define	TARGET_DEFAULT 7

/* Names to predefine in the preprocessor for this target machine.  */

#ifdef HPUX_ASM
/* This is needed because some programs, particularly GDB, need to
   know which assembler is being used so that the correct `asm'
   instructions can be used. */
#define CPP_PREDEFINES "-Dhp9000s200 -Dhp9000s300 -DPWB -Dmc68k -Dmc68000 -Dhpux -Dunix -D__HPUX_ASM__"
#else
#define CPP_PREDEFINES "-Dhp9000s200 -Dhp9000s300 -DPWB -Dmc68k -Dmc68000 -Dhpux -Dunix"
#endif

/* Generate calls to memcpy, memcmp and memset.  */
#define TARGET_MEM_FUNCTIONS

/* Function calls don't save any fp registers on hpux.  */

#undef CALL_USED_REGISTERS
#define CALL_USED_REGISTERS						\
 {1, 1, 0, 0, 0, 0, 0, 0,						\
  1, 1, 0, 0, 0, 0, 0, 1,						\
  1, 1, 1, 1, 1, 1, 1, 1}

#ifdef HPUX_ASM

/* Override parts of tm-m68k.h to fit the HPUX assembler.  */

#undef TARGET_VERSION
#undef REGISTER_NAMES
#undef FUNCTION_PROLOGUE
#undef FUNCTION_EPILOGUE
#undef ASM_FILE_START
#undef ASM_APP_ON
#undef ASM_APP_OFF
#undef TEXT_SECTION_ASM_OP
#undef DATA_SECTION_ASM_OP
#undef ASM_OUTPUT_DOUBLE
#undef ASM_OUTPUT_FLOAT
#undef ASM_OUTPUT_INT
#undef ASM_OUTPUT_SHORT
#undef ASM_OUTPUT_CHAR
#undef ASM_OUTPUT_BYTE
#undef ASM_OUTPUT_ADDR_VEC_ELT
#undef ASM_OUTPUT_ADDR_DIFF_ELT
#undef ASM_OUTPUT_ALIGN
#undef ASM_OUTPUT_SKIP
#undef ASM_OUTPUT_COMMON
#undef ASM_OUTPUT_LOCAL
#undef ASM_FORMAT_PRIVATE_NAME
#undef PRINT_OPERAND
#undef PRINT_OPERAND_ADDRESS
#undef FUNCTION_PROFILER
#undef ASM_GLOBALIZE_LABEL
#undef ASM_OUTPUT_INTERNAL_LABEL

#define TARGET_VERSION printf (" (68k, SGS/hpux syntax)");

#define NO_DBX_FORMAT

#define ASM_SPEC "%{m68000:+X}"

#define REGISTER_NAMES \
{"%d0", "%d1", "%d2", "%d3", "%d4", "%d5", "%d6", "%d7",	\
 "%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%fp", "%sp",	\
 "%fp0", "%fp1", "%fp2", "%fp3", "%fp4", "%fp5", "%fp6", "%fp7"}

#define FUNCTION_PROLOGUE(FILE, SIZE)     \
{ register int regno;						\
  register int mask = 0;					\
  static char *reg_names[] = REGISTER_NAMES;			\
  extern char call_used_regs[];					\
  int fsize = (SIZE);						\
  if (frame_pointer_needed)					\
    { if (TARGET_68020 || fsize < 0x8000)			\
        fprintf (FILE, "\tlink.w %%a6,&%d\n", -fsize);		\
      else							\
	fprintf (FILE, "\tlink.w %%a6,&0\n\tsub.l &%d,%%sp\n", fsize); }  \
  for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++)	\
    if (regs_ever_live[regno] && ! call_used_regs[regno])	\
       mask |= 1 << (regno - 16);				\
  if (mask != 0)						\
    fprintf (FILE, "\tfmovem &0x%x,-(%%sp)\n", mask & 0xff);       \
  mask = 0;							\
  for (regno = 0; regno < 16; regno++)				\
    if (regs_ever_live[regno] && ! call_used_regs[regno])	\
       mask |= 1 << (15 - regno);				\
  if (frame_pointer_needed)					\
    mask &= ~ (1 << (15-FRAME_POINTER_REGNUM));			\
  if (exact_log2 (mask) >= 0)					\
    fprintf (FILE, "\tmov.l %s,-(%%sp)\n", reg_names[15 - exact_log2 (mask)]);  \
  else if (mask) fprintf (FILE, "\tmovm.l &0x%x,-(%%sp)\n", mask); }

#define FUNCTION_PROFILER(FILE, LABEL_NO) \
   fprintf (FILE, "\tmov.l &LP%d,%%d0\n\tjsr mcount\n", (LABEL_NO));

#define FUNCTION_EPILOGUE(FILE, SIZE) \
{ register int regno;						\
  register int mask, fmask;					\
  register int nregs;						\
  int offset, foffset;						\
  extern char call_used_regs[];					\
  static char *reg_names[] = REGISTER_NAMES;			\
  extern int current_function_pops_args;			\
  extern int current_function_args_size;			\
  int fsize = (SIZE);						\
  int big = 0;							\
  nregs = 0;  fmask = 0;					\
  for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++)	\
    if (regs_ever_live[regno] && ! call_used_regs[regno])	\
      { nregs++; fmask |= 1 << (23 - regno); }			\
  foffset = nregs * 12;						\
  nregs = 0;  mask = 0;						\
  if (frame_pointer_needed) regs_ever_live[FRAME_POINTER_REGNUM] = 0; \
  for (regno = 0; regno < 16; regno++)				\
    if (regs_ever_live[regno] && ! call_used_regs[regno])	\
      { nregs++; mask |= 1 << regno; }				\
  offset = foffset + nregs * 4;					\
  if (offset + fsize >= 0x8000 && frame_pointer_needed)		\
    { fprintf (FILE, "\tmov.l &%d,%%a0\n", -fsize);		\
      fsize = 0, big = 1; }					\
  if (exact_log2 (mask) >= 0) {					\
    if (big)							\
      fprintf (FILE, "\tmov.l -%d(%%a6,%%a0.l),%s\n",		\
	       offset + fsize, reg_names[exact_log2 (mask)]);	\
    else if (! frame_pointer_needed)				\
      fprintf (FILE, "\tmov.l (%%sp)+,%s\n",			\
	       reg_names[exact_log2 (mask)]);			\
    else							\
      fprintf (FILE, "\tmov.l -%d(%%a6),%s\n",			\
	       offset + fsize, reg_names[exact_log2 (mask)]); }	\
  else if (mask) {						\
    if (big)							\
      fprintf (FILE, "\tmovm.l -%d(%%a6,%%a0.l),&0x%x\n",	\
	       offset + fsize, mask);				\
    else if (! frame_pointer_needed)				\
      fprintf (FILE, "\tmovm.l (%%sp)+,&0x%x\n", mask);		\
    else							\
      fprintf (FILE, "\tmovm.l -%d(%%a6),&0x%x\n",		\
	       offset + fsize, mask); }				\
  if (fmask) {							\
    if (big)							\
      fprintf (FILE, "\tfmovem -%d(%%a6,%%a0.l),&0x%x\n",	\
	       foffset + fsize, fmask);				\
    else if (! frame_pointer_needed)				\
      fprintf (FILE, "\tfmovem (%%sp)+,&0x%x\n", fmask);	\
    else							\
      fprintf (FILE, "\tfmovem -%d(%%a6),&0x%x\n",		\
	       foffset + fsize, fmask); }			\
  if (frame_pointer_needed)					\
    fprintf (FILE, "\tunlk %%a6\n");				\
  if (current_function_pops_args && current_function_args_size)	\
    fprintf (FILE, "\trtd &%d\n", current_function_args_size);	\
  else fprintf (FILE, "\trts\n"); }

#define ASM_FILE_START ""

#define ASM_APP_ON ""

#define ASM_APP_OFF ""

#define TEXT_SECTION_ASM_OP "\ttext"

#define DATA_SECTION_ASM_OP "\tdata"

#define	ASCII_DATA_ASM_OP "\tbyte"

/* This says how to output an assembler line
   to define a global common symbol.  */

#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE)  \
( fputs ("\tcomm ", (FILE)),			\
  assemble_name ((FILE), (NAME)),		\
  fprintf ((FILE), ",%d\n", (SIZE)))

/* This says how to output an assembler line
   to define a local common symbol.  */

#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE)  \
( fputs ("\tlcomm ", (FILE)),			\
  assemble_name ((FILE), (NAME)),		\
  fprintf ((FILE), ",%d,2\n", (SIZE)))

/* Store in OUTPUT a string (made with alloca) containing
   an assembler-name for a local static variable named NAME.
   LABELNO is an integer which is different for each call.  */

#define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO)	\
( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 12),	\
  sprintf ((OUTPUT), "%s___%d", (NAME), (LABELNO)))

/* This is how to output a command to make the user-level label named NAME
   defined for reference from other files.  */

#define ASM_GLOBALIZE_LABEL(FILE,NAME)	\
  do { fputs ("\tglobal ", FILE); assemble_name (FILE, NAME); fputs ("\n", FILE);} while (0)

#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM)	\
do{  if (PREFIX[0] == 'L' && PREFIX[1] == 'I')		\
    fprintf(FILE, "\tset %s%d,.+2\n", PREFIX, NUM);	\
  else							\
    fprintf (FILE, "%s%d:\n", PREFIX, NUM);		\
} while(0)

#if 0
/* Are these definitions necessary? */

#define ASM_OUTPUT_DOUBLE(FILE,VALUE)  \
do { union { double d; long l[2]; } tem;		\
     tem.d = (VALUE);					\
     fprintf(FILE, "\tlong 0x%x,0x%x\n", tem.l[0], tem.l[1]); \
   } while (0)

#define ASM_OUTPUT_FLOAT(FILE,VALUE)  \
do { union { float f; long l;} tem;			\
     tem.f = (VALUE);					\
     fprintf (FILE, "\tlong 0x%x\n", tem.l);	\
   } while (0)
#endif

#define ASM_OUTPUT_DOUBLE(FILE, VALUE)					\
  fprintf (FILE, "\tdouble 0f%.20g\n", (VALUE))

#define ASM_OUTPUT_FLOAT(FILE, VALUE)					\
  fprintf (FILE, "\tfloat 0f%.9g\n", (VALUE))

/* This is how to output an assembler line defining an `int' constant.  */

#define ASM_OUTPUT_INT(FILE,VALUE)  \
( fprintf (FILE, "\tlong "),			\
  output_addr_const (FILE, (VALUE)),		\
  fprintf (FILE, "\n"))

/* Likewise for `char' and `short' constants.  */

#define ASM_OUTPUT_SHORT(FILE,VALUE)  \
( fprintf (FILE, "\tshort "),			\
  output_addr_const (FILE, (VALUE)),		\
  fprintf (FILE, "\n"))

#define ASM_OUTPUT_CHAR(FILE,VALUE)  \
( fprintf (FILE, "\tbyte "),			\
  output_addr_const (FILE, (VALUE)),		\
  fprintf (FILE, "\n"))

/* This is how to output an assembler line for a numeric constant byte.  */

#define ASM_OUTPUT_BYTE(FILE,VALUE)  \
  fprintf (FILE, "\tbyte 0x%x\n", (VALUE))

#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE)  \
  fprintf (FILE, "\tlong L%d\n", VALUE)

#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL)  \
  fprintf (FILE, "\tshort L%d-L%d\n", VALUE, REL)

#define ASM_OUTPUT_ALIGN(FILE,LOG)	\
  if ((LOG) == 1)			\
    fprintf (FILE, "\tlalign 2\n");	\
  else if ((LOG) != 0)			\
    abort ();

#define ASM_OUTPUT_SKIP(FILE,SIZE)  \
  fprintf (FILE, "\tspace %d\n", (SIZE))

#define ASM_OUTPUT_SOURCE_FILENAME(FILE, FILENAME)
#define ASM_OUTPUT_SOURCE_LINE(FILE, LINENO)

#define PRINT_OPERAND(FILE, X, CODE)  \
{ if (CODE == '.') fprintf (FILE, ".");					\
  else if (CODE == '#') fprintf (FILE, "&");				\
  else if (CODE == '-') fprintf (FILE, "-(%%sp)");			\
  else if (CODE == '+') fprintf (FILE, "(%%sp)+");			\
  else if (CODE == 's') fprintf (FILE, "(%%sp)");			\
  else if (CODE == '!') fprintf (FILE, "%%cc");				\
  else if (GET_CODE (X) == REG)						\
    fprintf (FILE, "%s", reg_name [REGNO (X)]);				\
  else if (GET_CODE (X) == MEM)						\
    output_address (XEXP (X, 0));					\
  else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == SFmode)	\
    { union { double d; int i[2]; } u;					\
      union { float f; int i; } u1;					\
      u.i[0] = XINT (X, 0); u.i[1] = XINT (X, 1);			\
      u1.f = u.d;							\
      if (CODE == 'f')							\
        fprintf (FILE, "&0f%.9g", u1.f);				\
      else								\
        fprintf (FILE, "&0x%x", u1.i); }				\
  else if (GET_CODE (X) == CONST_DOUBLE)				\
    { union { double d; int i[2]; } u;					\
      u.i[0] = XINT (X, 0); u.i[1] = XINT (X, 1);			\
      fprintf (FILE, "&0f%.20g", u.d); }				\
  else { putc ('&', FILE); output_addr_const (FILE, X); }}

#define PRINT_OPERAND_ADDRESS(FILE, ADDR)  \
{ register rtx reg1, reg2, breg, ireg;					\
  register rtx addr = ADDR;						\
  rtx offset;								\
  switch (GET_CODE (addr))						\
    {									\
    case REG:								\
      fprintf (FILE, "(%s)", reg_name [REGNO (addr)]);			\
      break;								\
    case PRE_DEC:							\
      fprintf (FILE, "-(%s)", reg_name [REGNO (XEXP (addr, 0))]);	\
      break;								\
    case POST_INC:							\
      fprintf (FILE, "(%s)+", reg_name [REGNO (XEXP (addr, 0))]);	\
      break;								\
    case PLUS:								\
      reg1 = 0;	reg2 = 0;						\
      ireg = 0;	breg = 0;						\
      offset = 0;							\
      if (CONSTANT_ADDRESS_P (XEXP (addr, 0)))				\
	{								\
	  offset = XEXP (addr, 0);					\
	  addr = XEXP (addr, 1);					\
	}								\
      else if (CONSTANT_ADDRESS_P (XEXP (addr, 1)))			\
	{								\
	  offset = XEXP (addr, 1);					\
	  addr = XEXP (addr, 0);					\
	}								\
      if (GET_CODE (addr) != PLUS) ;					\
      else if (GET_CODE (XEXP (addr, 0)) == SIGN_EXTEND)		\
	{								\
	  reg1 = XEXP (addr, 0);					\
	  addr = XEXP (addr, 1);					\
	}								\
      else if (GET_CODE (XEXP (addr, 1)) == SIGN_EXTEND)		\
	{								\
	  reg1 = XEXP (addr, 1);					\
	  addr = XEXP (addr, 0);					\
	}								\
      else if (GET_CODE (XEXP (addr, 0)) == MULT)			\
	{								\
	  reg1 = XEXP (addr, 0);					\
	  addr = XEXP (addr, 1);					\
	}								\
      else if (GET_CODE (XEXP (addr, 1)) == MULT)			\
	{								\
	  reg1 = XEXP (addr, 1);					\
	  addr = XEXP (addr, 0);					\
	}								\
      else if (GET_CODE (XEXP (addr, 0)) == REG)			\
	{								\
	  reg1 = XEXP (addr, 0);					\
	  addr = XEXP (addr, 1);					\
	}								\
      else if (GET_CODE (XEXP (addr, 1)) == REG)			\
	{								\
	  reg1 = XEXP (addr, 1);					\
	  addr = XEXP (addr, 0);					\
	}								\
      if (GET_CODE (addr) == REG || GET_CODE (addr) == MULT		\
	  || GET_CODE (addr) == SIGN_EXTEND)				\
	{ if (reg1 == 0) reg1 = addr; else reg2 = addr; addr = 0; }	\
/*  for OLD_INDEXING							\
      else if (GET_CODE (addr) == PLUS)					\
	{								\
	  if (GET_CODE (XEXP (addr, 0)) == REG)				\
	    {								\
	      reg2 = XEXP (addr, 0);					\
	      addr = XEXP (addr, 1);					\
	    }								\
	  else if (GET_CODE (XEXP (addr, 1)) == REG)			\
	    {								\
	      reg2 = XEXP (addr, 1);					\
	      addr = XEXP (addr, 0);					\
	    }								\
	}								\
  */									\
      if (offset != 0) { if (addr != 0) abort (); addr = offset; }	\
      if ((reg1 && (GET_CODE (reg1) == SIGN_EXTEND			\
		    || GET_CODE (reg1) == MULT))			\
	  || (reg2 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg2))))		\
	{ breg = reg2; ireg = reg1; }					\
      else if (reg1 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg1)))		\
	{ breg = reg1; ireg = reg2; }					\
      if (ireg != 0 && breg == 0 && GET_CODE (addr) == LABEL_REF)	\
        { int scale = 1;						\
	  if (GET_CODE (ireg) == MULT)					\
	    { scale = INTVAL (XEXP (ireg, 1));				\
	      ireg = XEXP (ireg, 0); }					\
	  if (GET_CODE (ireg) == SIGN_EXTEND)				\
	    fprintf (FILE, "L%d-LI%d(%%pc,%s.w",			\
		     CODE_LABEL_NUMBER (XEXP (addr, 0)),		\
		     CODE_LABEL_NUMBER (XEXP (addr, 0)),		\
		     reg_name[REGNO (XEXP (ireg, 0))]); 		\
	  else								\
	    fprintf (FILE, "L%d-LI%d(%%pc,%s.l",			\
		     CODE_LABEL_NUMBER (XEXP (addr, 0)),		\
		     CODE_LABEL_NUMBER (XEXP (addr, 0)),		\
		     reg_name[REGNO (ireg)]);				\
	  if (scale != 1) fprintf (FILE, "*%d", scale);			\
	  putc (')', FILE);						\
	  break; }							\
      if (ireg != 0 || breg != 0)					\
	{ int scale = 1;						\
	  if (breg == 0)						\
	    abort ();							\
	  if (addr != 0)						\
	    output_addr_const (FILE, addr);				\
	  fprintf (FILE, "(%s", reg_name[REGNO (breg)]);		\
	  if (ireg != 0)						\
	    putc (',', FILE);						\
	  if (ireg != 0 && GET_CODE (ireg) == MULT)			\
	    { scale = INTVAL (XEXP (ireg, 1));				\
	      ireg = XEXP (ireg, 0); }					\
	  if (ireg != 0 && GET_CODE (ireg) == SIGN_EXTEND)		\
	    fprintf (FILE, "%s.w", reg_name[REGNO (XEXP (ireg, 0))]);	\
	  else if (ireg != 0)						\
	    fprintf (FILE, "%s.l", reg_name[REGNO (ireg)]);		\
	  if (scale != 1) fprintf (FILE, "*%d", scale);			\
	  putc (')', FILE);						\
	  break;							\
	}								\
      else if (reg1 != 0 && GET_CODE (addr) == LABEL_REF)		\
	{ fprintf (FILE, "L%d-LI%d(%%pc,%s.w)",				\
		   CODE_LABEL_NUMBER (XEXP (addr, 0)),			\
		   CODE_LABEL_NUMBER (XEXP (addr, 0)),			\
		   reg_name[REGNO (reg1)]);				\
	  break; }							\
    default:								\
      if (GET_CODE (addr) == CONST_INT					\
	  && INTVAL (addr) < 0x8000					\
	  && INTVAL (addr) >= -0x8000)					\
	fprintf (FILE, "%d.w", INTVAL (addr));				\
      else								\
        output_addr_const (FILE, addr);					\
    }}

#define	ASM_OUTPUT_ASCII(f, p, size)	\
{ register int i;			\
  int inside;				\
  inside = FALSE;			\
  for (i = 0; i < size; i++) {		\
    if (i % 8 == 0) {			\
      if (i != 0) {			\
	if (inside)			\
	  putc('"', f);			\
	putc('\n', f);			\
	inside = FALSE;			\
      }					\
      fprintf(f, "%s ", ASCII_DATA_ASM_OP);	\
    }					\
    if (p[i] < 32 || p[i] == '\\' || p[i] == '"' || p[i] == 127) {	\
      if (inside) {			\
	putc('"', f);			\
	inside = FALSE;			\
      }					\
      if (i % 8 != 0)			\
	putc(',', f);			\
      fprintf(f, "%d", p[i]);		\
    } else {				\
      if (!inside) {			\
	if (i % 8 != 0)			\
	  putc(',', f);			\
	putc('"', f);			\
	inside = TRUE;			\
      }					\
      putc(p[i], f);			\
    }					\
  }					\
  if (inside)				\
    putc('"', f);			\
  putc('\n', f);			\
}

/* Translate Motorola opcodes such as `jbeq'
   into SGS opcodes such as `beq.w'.
   Delete the `e' in `move...' and `fmove'.
   Change `ftst' to `ftest'.  */

#define ASM_OUTPUT_OPCODE(FILE, PTR)			\
{ if ((PTR)[0] == 'j' && (PTR)[1] == 'b')		\
    { ++(PTR);						\
      while (*(PTR) != ' ')				\
	{ putc (*(PTR), (FILE)); ++(PTR); }		\
      fprintf ((FILE), ".w"); }				\
  else if ((PTR)[0] == 'f')				\
    {							\
      if (!strncmp ((PTR), "fmove", 5))			\
	{ fprintf ((FILE), "fmov"); (PTR) += 5; }	\
      else if (!strncmp ((PTR), "ftst", 4))		\
	{ fprintf ((FILE), "ftest"); (PTR) += 4; }	\
    }							\
  else if ((PTR)[0] == 'm' && (PTR)[1] == 'o'		\
	   && (PTR)[2] == 'v' && (PTR)[3] == 'e')	\
    { fprintf ((FILE), "mov"); (PTR) += 4; }		\
}

#else /* not HPUX_ASM */

#undef FUNCTION_PROFILER
#define FUNCTION_PROFILER(FILE, LABELNO)  \
   fprintf (FILE, "\tmovl #LP%d,d0\n\tjsr mcount\n", (LABELNO));

#endif /* not HPUX_ASM */