Added gccHEADmaster

1 files changed, 1643 insertions, 0 deletions

diff --git a/gcc-1.40/config/tm-m68k.h b/gcc-1.40/config/tm-m68k.h
new file mode 100644
index 0000000..256b06e
--- /dev/null
+++ b/gcc-1.40/config/tm-m68k.h
@@ -0,0 +1,1643 @@
+/* Definitions of target machine for GNU compiler.  Sun 68000/68020 version.
+   Copyright (C) 1987, 1988 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.  */
+
+
+/* Note that some other tm- files include this one and then override
+   many of the definitions that relate to assembler syntax.  */
+
+
+/* Names to predefine in the preprocessor for this target machine.  */
+
+/* See tm-sun3.h, tm-sun2.h, tm-isi68.h for different CPP_PREDEFINES.  */
+
+/* Print subsidiary information on the compiler version in use.  */
+#ifdef MOTOROLA
+#define TARGET_VERSION fprintf (stderr, " (68k, Motorola syntax)");
+#else
+#define TARGET_VERSION fprintf (stderr, " (68k, MIT syntax)");
+#endif
+
+/* Run-time compilation parameters selecting different hardware subsets.  */
+
+extern int target_flags;
+
+/* Macros used in the machine description to test the flags.  */
+
+/* Compile for a 68020 (not a 68000 or 68010).  */
+#define TARGET_68020 (target_flags & 1)
+/* Compile 68881 insns for floating point (not library calls).  */
+#define TARGET_68881 (target_flags & 2)
+/* Compile using 68020 bitfield insns.  */
+#define TARGET_BITFIELD (target_flags & 4)
+/* Compile using rtd insn calling sequence.
+   This will not work unless you use prototypes at least
+   for all functions that can take varying numbers of args.  */
+#define TARGET_RTD (target_flags & 8)
+/* Compile passing first two args in regs 0 and 1.
+   This exists only to test compiler features that will
+   be needed for RISC chips.  It is not usable
+   and is not intended to be usable on this cpu.  */
+#define TARGET_REGPARM (target_flags & 020)
+/* Compile with 16-bit `int'.  */
+#define TARGET_SHORT (target_flags & 040)
+
+/* Compile with special insns for Sun FPA.  */
+#define TARGET_FPA (target_flags & 0100)
+
+/* Macro to define tables used to set the flags.
+   This is a list in braces of pairs in braces,
+   each pair being { "NAME", VALUE }
+   where VALUE is the bits to set or minus the bits to clear.
+   An empty string NAME is used to identify the default VALUE.  */
+
+#define TARGET_SWITCHES  \
+  { { "68020", 5},				\
+    { "c68020", 5},				\
+    { "68881", 2},				\
+    { "bitfield", 4},				\
+    { "68000", -5},				\
+    { "c68000", -5},				\
+    { "soft-float", -0102},			\
+    { "nobitfield", -4},			\
+    { "rtd", 8},				\
+    { "nortd", -8},				\
+    { "short", 040},				\
+    { "noshort", -040},				\
+    { "fpa", 0100},				\
+    { "nofpa", -0100},				\
+    { "", TARGET_DEFAULT}}
+/* TARGET_DEFAULT is defined in tm-sun*.h and tm-isi68.h, etc.  */
+
+/* Blow away 68881 flag silently on TARGET_FPA (since we can't clear
+   any bits in TARGET_SWITCHES above) */
+#define OVERRIDE_OPTIONS		\
+{					\
+  if (TARGET_FPA) target_flags &= ~2;	\
+}
+
+/* target machine storage layout */
+
+/* Define this if most significant bit is lowest numbered
+   in instructions that operate on numbered bit-fields.
+   This is true for 68020 insns such as bfins and bfexts.
+   We make it true always by avoiding using the single-bit insns
+   except in special cases with constant bit numbers.  */
+#define BITS_BIG_ENDIAN
+
+/* Define this if most significant byte of a word is the lowest numbered.  */
+/* That is true on the 68000.  */
+#define BYTES_BIG_ENDIAN
+
+/* Define this if most significant word of a multiword number is numbered.  */
+/* For 68000 we can decide arbitrarily
+   since there are no machine instructions for them.  */
+/* #define WORDS_BIG_ENDIAN */
+
+/* number of bits in an addressible storage unit */
+#define BITS_PER_UNIT 8
+
+/* Width in bits of a "word", which is the contents of a machine register.
+   Note that this is not necessarily the width of data type `int';
+   if using 16-bit ints on a 68000, this would still be 32.
+   But on a machine with 16-bit registers, this would be 16.  */
+#define BITS_PER_WORD 32
+
+/* Width of a word, in units (bytes).  */
+#define UNITS_PER_WORD 4
+
+/* Width in bits of a pointer.
+   See also the macro `Pmode' defined below.  */
+#define POINTER_SIZE 32
+
+/* Allocation boundary (in *bits*) for storing pointers in memory.  */
+#define POINTER_BOUNDARY 16
+
+/* Allocation boundary (in *bits*) for storing arguments in argument list.  */
+#define PARM_BOUNDARY (TARGET_SHORT ? 16 : 32)
+
+/* Boundary (in *bits*) on which stack pointer should be aligned.  */
+#define STACK_BOUNDARY 16
+
+/* Allocation boundary (in *bits*) for the code of a function.  */
+#define FUNCTION_BOUNDARY 16
+
+/* Alignment of field after `int : 0' in a structure.  */
+#define EMPTY_FIELD_BOUNDARY 16
+
+/* No data type wants to be aligned rounder than this.  */
+#define BIGGEST_ALIGNMENT 16
+
+/* Define this if move instructions will actually fail to work
+   when given unaligned data.  */
+#define STRICT_ALIGNMENT
+
+/* Define number of bits in most basic integer type.
+   (If undefined, default is BITS_PER_WORD).  */
+
+#define INT_TYPE_SIZE (TARGET_SHORT ? 16 : 32)
+
+/* Standard register usage.  */
+
+/* Number of actual hardware registers.
+   The hardware registers are assigned numbers for the compiler
+   from 0 to just below FIRST_PSEUDO_REGISTER.
+   All registers that the compiler knows about must be given numbers,
+   even those that are not normally considered general registers.
+   For the 68000, we give the data registers numbers 0-7,
+   the address registers numbers 010-017,
+   and the 68881 floating point registers numbers 020-027.  */
+#define FIRST_PSEUDO_REGISTER 56 /* 24 */
+
+/* 1 for registers that have pervasive standard uses
+   and are not available for the register allocator.
+   On the 68000, only the stack pointer is such.  */
+/* fpa0 is also reserved so that it can be used to move shit back and
+   forth between high fpa regs and everything else. */
+#define FIXED_REGISTERS  \
+ {0, 0, 0, 0, 0, 0, 0, 0, \
+  0, 0, 0, 0, 0, 0, 0, 1, \
+  0, 0, 0, 0, 0, 0, 0, 0, \
+  /* FPA registers.  */   \
+  1, 0, 0, 0, 0, 0, 0, 0, \
+  0, 0, 0, 0, 0, 0, 0, 0, \
+  0, 0, 0, 0, 0, 0, 0, 0, \
+  0, 0, 0, 0, 0, 0, 0, 0, }
+
+/* 1 for registers not available across function calls.
+   These must include the FIXED_REGISTERS and also any
+   registers that can be used without being saved.
+   The latter must include the registers where values are returned
+   and the register where structure-value addresses are passed.
+   Aside from that, you can include as many other registers as you like.  */
+#define CALL_USED_REGISTERS \
+ {1, 1, 0, 0, 0, 0, 0, 0, \
+  1, 1, 0, 0, 0, 0, 0, 1, \
+  1, 1, 0, 0, 0, 0, 0, 0, \
+  /* FPA registers.  */   \
+  1, 1, 1, 1, 0, 0, 0, 0, \
+  0, 0, 0, 0, 0, 0, 0, 0, \
+  0, 0, 0, 0, 0, 0, 0, 0, \
+  0, 0, 0, 0, 0, 0, 0, 0, }
+
+/* Make sure everything's fine if we *don't* have a given processor.
+   This assumes that putting a register in fixed_regs will keep the
+   compilers mitt's completely off it.  We don't bother to zero it out
+   of register classes.  If neither TARGET_FPA or TARGET_68881 is set,
+   the compiler won't touch since no instructions that use these
+   registers will be valid.  */
+#define CONDITIONAL_REGISTER_USAGE \
+{ 						\
+  int i; 					\
+  HARD_REG_SET x; 				\
+  if (!TARGET_FPA)				\
+    { 						\
+      COPY_HARD_REG_SET (x, reg_class_contents[(int)FPA_REGS]); \
+      for (i = 0; i < FIRST_PSEUDO_REGISTER; i++ ) \
+       if (TEST_HARD_REG_BIT (x, i)) 		\
+	fixed_regs[i] = call_used_regs[i] = 1; 	\
+    } 						\
+  if (TARGET_FPA)				\
+    { 						\
+      COPY_HARD_REG_SET (x, reg_class_contents[(int)FP_REGS]); \
+      for (i = 0; i < FIRST_PSEUDO_REGISTER; i++ ) \
+       if (TEST_HARD_REG_BIT (x, i)) 		\
+	fixed_regs[i] = call_used_regs[i] = 1; 	\
+    } 						\
+}
+
+/* Return number of consecutive hard regs needed starting at reg REGNO
+   to hold something of mode MODE.
+   This is ordinarily the length in words of a value of mode MODE
+   but can be less for certain modes in special long registers.
+
+   On the 68000, ordinary registers hold 32 bits worth;
+   for the 68881 registers, a single register is always enough for
+   anything that can be stored in them at all.  */
+#define HARD_REGNO_NREGS(REGNO, MODE)   \
+  ((REGNO) >= 16 ? 1				\
+   : ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD))
+
+/* Value is 1 if hard register REGNO can hold a value of machine-mode MODE.
+   On the 68000, the cpu registers can hold any mode but the 68881 registers
+   can hold only SFmode or DFmode.  And the 68881 registers can't hold anything
+   if 68881 use is disabled.  However, the Sun FPA register can
+   (apparently) hold whatever you feel like putting in them.  */
+#define HARD_REGNO_MODE_OK(REGNO, MODE) \
+  (((REGNO) < 16 &&						\
+    (!TARGET_FPA || (MODE) != DFmode || (REGNO) != 7))		\
+   || ((REGNO) < 24						\
+       ? TARGET_68881 && ((MODE) == SFmode || (MODE) == DFmode)	\
+       : ((REGNO) < 56						\
+	  ? TARGET_FPA : 0)))
+
+/* Value is 1 if it is a good idea to tie two pseudo registers
+   when one has mode MODE1 and one has mode MODE2.
+   If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2,
+   for any hard reg, then this must be 0 for correct output.  */
+#define MODES_TIEABLE_P(MODE1, MODE2)			\
+  (! TARGET_68881					\
+   || (((MODE1) == SFmode || (MODE1) == DFmode)		\
+       == ((MODE2) == SFmode || (MODE2) == DFmode)))
+
+/* Specify the registers used for certain standard purposes.
+   The values of these macros are register numbers.  */
+
+/* m68000 pc isn't overloaded on a register.  */
+/* #define PC_REGNUM  */
+
+/* Register to use for pushing function arguments.  */
+#define STACK_POINTER_REGNUM 15
+
+/* Base register for access to local variables of the function.  */
+#define FRAME_POINTER_REGNUM 14
+
+/* Value should be nonzero if functions must have frame pointers.
+   Zero means the frame pointer need not be set up (and parms
+   may be accessed via the stack pointer) in functions that seem suitable.
+   This is computed in `reload', in reload1.c.  */
+#define FRAME_POINTER_REQUIRED 0
+
+/* Base register for access to arguments of the function.  */
+#define ARG_POINTER_REGNUM 14
+
+/* Register in which static-chain is passed to a function.  */
+#define STATIC_CHAIN_REGNUM 8
+
+/* Register in which address to store a structure value
+   is passed to a function.  */
+#define STRUCT_VALUE_REGNUM 9
+
+/* Define the classes of registers for register constraints in the
+   machine description.  Also define ranges of constants.
+
+   One of the classes must always be named ALL_REGS and include all hard regs.
+   If there is more than one class, another class must be named NO_REGS
+   and contain no registers.
+
+   The name GENERAL_REGS must be the name of a class (or an alias for
+   another name such as ALL_REGS).  This is the class of registers
+   that is allowed by "g" or "r" in a register constraint.
+   Also, registers outside this class are allocated only when
+   instructions express preferences for them.
+
+   The classes must be numbered in nondecreasing order; that is,
+   a larger-numbered class must never be contained completely
+   in a smaller-numbered class.
+
+   For any two classes, it is very desirable that there be another
+   class that represents their union.  */
+
+/* The 68000 has three kinds of registers, so eight classes would be
+   a complete set.  One of them is not needed.  */
+
+/*
+ * Notes on final choices:
+ *
+ *   1) Didn't feel any need to union-ize LOW_FPA_REGS with anything
+ * else.
+ *   2) Removed all unions that involve address registers with
+ * floating point registers (left in unions of address and data with
+ * floating point).
+ *   3) Defined GENERAL_REGS as ADDR_OR_DATA_REGS.
+ *   4) Defined ALL_REGS as FPA_OR_FP_OR_GENERAL_REGS.
+ *   4) Left in everything else.
+ */
+enum reg_class { NO_REGS, LO_FPA_REGS, FPA_REGS, FP_REGS,
+  FP_OR_FPA_REGS, DATA_REGS, DATA_OR_FPA_REGS, DATA_OR_FP_REGS,
+  DATA_OR_FP_OR_FPA_REGS, ADDR_REGS, GENERAL_REGS,
+  GENERAL_OR_FPA_REGS, GENERAL_OR_FP_REGS, ALL_REGS,
+  LIM_REG_CLASSES };
+
+#define N_REG_CLASSES (int) LIM_REG_CLASSES
+
+/* Give names of register classes as strings for dump file.   */
+
+#define REG_CLASS_NAMES \
+ { "NO_REGS", "LO_FPA_REGS", "FPA_REGS", "FP_REGS",  \
+   "FP_OR_FPA_REGS", "DATA_REGS", "DATA_OR_FPA_REGS", "DATA_OR_FP_REGS",  \
+   "DATA_OR_FP_OR_FPA_REGS", "ADDR_REGS", "GENERAL_REGS",  \
+   "GENERAL_OR_FPA_REGS", "GENERAL_OR_FP_REGS", "ALL_REGS" }
+
+/* Define which registers fit in which classes.
+   This is an initializer for a vector of HARD_REG_SET
+   of length N_REG_CLASSES.  */
+
+#define REG_CLASS_CONTENTS \
+{							\
+ {0, 0},			/* NO_REGS */		\
+ {0xff000000, 0x000000ff},	/* LO_FPA_REGS */	\
+ {0xff000000, 0x00ffffff},	/* FPA_REGS */		\
+ {0x00ff0000, 0x00000000},	/* FP_REGS */		\
+ {0xffff0000, 0x00ffffff},	/* FP_OR_FPA_REGS */	\
+ {0x000000ff, 0x00000000},	/* DATA_REGS */		\
+ {0xff0000ff, 0x00ffffff},	/* DATA_OR_FPA_REGS */	\
+ {0x00ff00ff, 0x00000000},	/* DATA_OR_FP_REGS */	\
+ {0xffff00ff, 0x00ffffff},	/* DATA_OR_FP_OR_FPA_REGS */\
+ {0x0000ff00, 0x00000000},	/* ADDR_REGS */		\
+ {0x0000ffff, 0x00000000},	/* GENERAL_REGS */	\
+ {0xff00ffff, 0x00ffffff},	/* GENERAL_OR_FPA_REGS */\
+ {0x00ffffff, 0x00000000},	/* GENERAL_OR_FP_REGS */\
+ {0xffffffff, 0x00ffffff},	/* ALL_REGS */		\
+}
+
+/* The same information, inverted:
+   Return the class number of the smallest class containing
+   reg number REGNO.  This could be a conditional expression
+   or could index an array.  */
+
+extern enum reg_class regno_reg_class[];
+#define REGNO_REG_CLASS(REGNO) (regno_reg_class[(REGNO)>>3])
+
+/* The class value for index registers, and the one for base regs.  */
+
+#define INDEX_REG_CLASS GENERAL_REGS
+#define BASE_REG_CLASS ADDR_REGS
+
+/* Get reg_class from a letter such as appears in the machine description.
+   We do a trick here to modify the effective constraints on the
+   machine description; we zorch the constraint letters that aren't
+   appropriate for a specific target.  This allows us to guarantee
+   that a specific kind of register will not be used for a given target
+   without fiddling with the register classes above. */
+
+#define REG_CLASS_FROM_LETTER(C) \
+  ((C) == 'a' ? ADDR_REGS :			\
+   ((C) == 'd' ? DATA_REGS :			\
+    ((C) == 'f' ? (TARGET_68881 ? FP_REGS :	\
+		   NO_REGS) :			\
+     ((C) == 'x' ? (TARGET_FPA ? FPA_REGS :	\
+		    NO_REGS) :			\
+      ((C) == 'y' ? (TARGET_FPA ? LO_FPA_REGS :	\
+		     NO_REGS) :			\
+       NO_REGS)))))
+
+/* The letters I, J, K, L and M in a register constraint string
+   can be used to stand for particular ranges of immediate operands.
+   This macro defines what the ranges are.
+   C is the letter, and VALUE is a constant value.
+   Return 1 if VALUE is in the range specified by C.
+
+   For the 68000, `I' is used for the range 1 to 8
+   allowed as immediate shift counts and in addq.
+   `J' is used for the range of signed numbers that fit in 16 bits.
+   `K' is for numbers that moveq can't handle.
+   `L' is for range -8 to -1, range of values that can be added with subq.  */
+
+#define CONST_OK_FOR_LETTER_P(VALUE, C)  \
+  ((C) == 'I' ? (VALUE) > 0 && (VALUE) <= 8 :    \
+   (C) == 'J' ? (VALUE) >= -0x8000 && (VALUE) <= 0x7FFF :	\
+   (C) == 'K' ? (VALUE) < -0x80 || (VALUE) >= 0x80 :	\
+   (C) == 'L' ? (VALUE) < 0 && (VALUE) >= -8 : 0)
+
+/*
+ * A small bit of explanation:
+ * "G" defines all of the floating constants that are *NOT* 68881
+ * constants.  this is so 68881 constants get reloaded and the
+ * fpmovecr is used.  "H" defines *only* the class of constants that
+ * the fpa can use, because these can be gotten at in any fpa
+ * instruction and there is no need to force reloads.
+ */
+
+#define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C)  \
+  ((C) == 'G' ? ! (TARGET_68881 && standard_68881_constant_p (VALUE)) : \
+   (C) == 'H' ? (TARGET_FPA && standard_sun_fpa_constant_p (VALUE)) : 0)
+
+/* Given an rtx X being reloaded into a reg required to be
+   in class CLASS, return the class of reg to actually use.
+   In general this is just CLASS; but on some machines
+   in some cases it is preferable to use a more restrictive class.
+   On the 68000 series, use a data reg if possible when the
+   value is a constant in the range where moveq could be used
+   and we ensure that QImodes are reloaded into data regs.  */
+
+#define PREFERRED_RELOAD_CLASS(X,CLASS)  \
+  ((GET_CODE (X) == CONST_INT			\
+    && (unsigned) (INTVAL (X) + 0x80) < 0x100	\
+    && (CLASS) != ADDR_REGS)			\
+   ? DATA_REGS					\
+   : GET_MODE (X) == QImode			\
+   ? DATA_REGS					\
+   : (CLASS))
+
+/* Return the maximum number of consecutive registers
+   needed to represent mode MODE in a register of class CLASS.  */
+/* On the 68000, this is the size of MODE in words,
+   except in the FP regs, where a single reg is always enough.  */
+#define CLASS_MAX_NREGS(CLASS, MODE)	\
+ ((CLASS) == FP_REGS || (CLASS) == FPA_REGS || (CLASS) == LO_FPA_REGS ? 1 \
+  : ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD))
+
+/* Stack layout; function entry, exit and calling.  */
+
+/* Define this if pushing a word on the stack
+   makes the stack pointer a smaller address.  */
+#define STACK_GROWS_DOWNWARD
+
+/* Define this if the nominal address of the stack frame
+   is at the high-address end of the local variables;
+   that is, each additional local variable allocated
+   goes at a more negative offset in the frame.  */
+#define FRAME_GROWS_DOWNWARD
+
+/* Offset within stack frame to start allocating local variables at.
+   If FRAME_GROWS_DOWNWARD, this is the offset to the END of the
+   first local allocated.  Otherwise, it is the offset to the BEGINNING
+   of the first local allocated.  */
+#define STARTING_FRAME_OFFSET 0
+
+/* If we generate an insn to push BYTES bytes,
+   this says how many the stack pointer really advances by.
+   On the 68000, sp@- in a byte insn really pushes a word.  */
+#define PUSH_ROUNDING(BYTES) (((BYTES) + 1) & ~1)
+
+/* Offset of first parameter from the argument pointer register value.  */
+#define FIRST_PARM_OFFSET(FNDECL) 8
+
+/* Value is 1 if returning from a function call automatically
+   pops the arguments described by the number-of-args field in the call.
+   FUNTYPE is the data type of the function (as a tree),
+   or for a library call it is an identifier node for the subroutine name.
+
+   On the 68000, the RTS insn cannot pop anything.
+   On the 68010, the RTD insn may be used to pop them if the number
+     of args is fixed, but if the number is variable then the caller
+     must pop them all.  RTD can't be used for library calls now
+     because the library is compiled with the Unix compiler.
+   Use of RTD is a selectable option, since it is incompatible with
+   standard Unix calling sequences.  If the option is not selected,
+   the caller must always pop the args.  */
+
+#define RETURN_POPS_ARGS(FUNTYPE)   \
+  (TARGET_RTD && TREE_CODE (FUNTYPE) != IDENTIFIER_NODE		\
+   && (TYPE_ARG_TYPES (FUNTYPE) == 0				\
+       || TREE_VALUE (tree_last (TYPE_ARG_TYPES (FUNTYPE))) == void_type_node))
+
+/* Define how to find the value returned by a function.
+   VALTYPE is the data type of the value (as a tree).
+   If the precise function being called is known, FUNC is its FUNCTION_DECL;
+   otherwise, FUNC is 0.  */
+
+/* On the 68000 the return value is in D0 regardless.  */
+
+#define FUNCTION_VALUE(VALTYPE, FUNC)  \
+  gen_rtx (REG, TYPE_MODE (VALTYPE), 0)
+
+/* Define how to find the value returned by a library function
+   assuming the value has mode MODE.  */
+
+/* On the 68000 the return value is in D0 regardless.  */
+
+#define LIBCALL_VALUE(MODE)  gen_rtx (REG, MODE, 0)
+
+/* 1 if N is a possible register number for a function value.
+   On the 68000, d0 is the only register thus used.  */
+
+#define FUNCTION_VALUE_REGNO_P(N) ((N) == 0)
+
+/* Define this if PCC uses the nonreentrant convention for returning
+   structure and union values.  */
+
+#define PCC_STATIC_STRUCT_RETURN
+
+/* 1 if N is a possible register number for function argument passing.
+   On the 68000, no registers are used in this way.  */
+
+#define FUNCTION_ARG_REGNO_P(N) 0
+
+/* Define a data type for recording info about an argument list
+   during the scan of that argument list.  This data type should
+   hold all necessary information about the function itself
+   and about the args processed so far, enough to enable macros
+   such as FUNCTION_ARG to determine where the next arg should go.
+
+   On the m68k, this is a single integer, which is a number of bytes
+   of arguments scanned so far.  */
+
+#define CUMULATIVE_ARGS int
+
+/* Initialize a variable CUM of type CUMULATIVE_ARGS
+   for a call to a function whose data type is FNTYPE.
+   For a library call, FNTYPE is 0.
+
+   On the m68k, the offset starts at 0.  */
+
+#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE)	\
+ ((CUM) = 0)
+
+/* Update the data in CUM to advance over an argument
+   of mode MODE and data type TYPE.
+   (TYPE is null for libcalls where that information may not be available.)  */
+
+#define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED)	\
+ ((CUM) += ((MODE) != BLKmode			\
+	    ? (GET_MODE_SIZE (MODE) + 3) & ~3	\
+	    : (int_size_in_bytes (TYPE) + 3) & ~3))
+
+/* Define where to put the arguments to a function.
+   Value is zero to push the argument on the stack,
+   or a hard register in which to store the argument.
+
+   MODE is the argument's machine mode.
+   TYPE is the data type of the argument (as a tree).
+    This is null for libcalls where that information may
+    not be available.
+   CUM is a variable of type CUMULATIVE_ARGS which gives info about
+    the preceding args and about the function being called.
+   NAMED is nonzero if this argument is a named parameter
+    (otherwise it is an extra parameter matching an ellipsis).  */
+
+/* On the 68000 all args are pushed, except if -mregparm is specified
+   then the first two words of arguments are passed in d0, d1.
+   *NOTE* -mregparm does not work.
+   It exists only to test register calling conventions.  */
+
+#define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \
+((TARGET_REGPARM && (CUM) < 8) ? gen_rtx (REG, (MODE), (CUM) / 4) : 0)
+
+/* For an arg passed partly in registers and partly in memory,
+   this is the number of registers used.
+   For args passed entirely in registers or entirely in memory, zero.  */
+
+#define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) \
+((TARGET_REGPARM && (CUM) < 8					\
+  && 8 < ((CUM) + ((MODE) == BLKmode				\
+		      ? int_size_in_bytes (TYPE)		\
+		      : GET_MODE_SIZE (MODE))))  		\
+ ? 2 - (CUM) / 4 : 0)
+
+/* This macro generates the assembly code for function entry.
+   FILE is a stdio stream to output the code to.
+   SIZE is an int: how many units of temporary storage to allocate.
+   Refer to the array `regs_ever_live' to determine which registers
+   to save; `regs_ever_live[I]' is nonzero if register number I
+   is ever used in the function.  This macro is responsible for
+   knowing which registers should not be saved even if used.  */
+
+/* Note that the order of the bit mask for fmovem is the opposite
+   of the order for movem!  */
+
+#define FUNCTION_PROLOGUE(FILE, SIZE)     \
+{ register int regno;						\
+  register int mask = 0;					\
+  extern char call_used_regs[];					\
+  int fsize = ((SIZE) + 3) & -4;				\
+  if (frame_pointer_needed)					\
+    { if (TARGET_68020 || fsize < 0x8000)			\
+        fprintf (FILE, "\tlink a6,#%d\n", -fsize);		\
+      else							\
+	fprintf (FILE, "\tlink a6,#0\n\tsubl #%d,sp\n", fsize); }  \
+  for (regno = 24; regno < 56; regno++)				\
+    if (regs_ever_live[regno] && ! call_used_regs[regno])	\
+      fprintf(FILE, "\tfpmoved %s, sp@-\n",			\
+	      reg_names[regno]);				\
+  for (regno = 16; regno < 24; regno++)				\
+    if (regs_ever_live[regno] && ! call_used_regs[regno])	\
+       mask |= 1 << (regno - 16);				\
+  if ((mask & 0xff) != 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, "\tmovel %s,sp@-\n", reg_names[15 - exact_log2 (mask)]);  \
+  else if (mask) fprintf (FILE, "\tmoveml #0x%x,sp@-\n", mask); }
+
+/* Output assembler code to FILE to increment profiler label # LABELNO
+   for profiling a function entry.  */
+
+#define FUNCTION_PROFILER(FILE, LABELNO)  \
+  fprintf (FILE, "\tlea LP%d,a0\n\tjsr mcount\n", (LABELNO))
+
+/* Output assembler code to FILE to initialize this source file's
+   basic block profiling info, if that has not already been done.  */
+
+#define FUNCTION_BLOCK_PROFILER(FILE, LABELNO)  \
+  fprintf (FILE, "\ttstl LPBX0\n\tbne LPI%d\n\tpea LPBX0\n\tjsr ___bb_init_func\n\taddql #4,sp\nLPI%d:\n",  \
+	   LABELNO, LABELNO);
+
+/* Output assembler code to FILE to increment the entry-count for
+   the BLOCKNO'th basic block in this source file.  */
+
+#define BLOCK_PROFILER(FILE, BLOCKNO)	\
+  fprintf (FILE, "\taddql #1,LPBX2+%d\n", 4 * BLOCKNO)
+
+/* EXIT_IGNORE_STACK should be nonzero if, when returning from a function,
+   the stack pointer does not matter.  The value is tested only in
+   functions that have frame pointers.
+   No definition is equivalent to always zero.  */
+
+#define EXIT_IGNORE_STACK 1
+
+/* This macro generates the assembly code for function exit,
+   on machines that need it.  If FUNCTION_EPILOGUE is not defined
+   then individual return instructions are generated for each
+   return statement.  Args are same as for FUNCTION_PROLOGUE.
+
+   The function epilogue should not depend on the current stack pointer!
+   It should use the frame pointer only.  This is mandatory because
+   of alloca; we also take advantage of it to omit stack adjustments
+   before returning.  */
+
+#define FUNCTION_EPILOGUE(FILE, SIZE) \
+{ register int regno;						\
+  register int mask, fmask;					\
+  register int nregs;						\
+  int offset, foffset, fpoffset;				\
+  extern char call_used_regs[];					\
+  extern int current_function_pops_args;			\
+  extern int current_function_args_size;			\
+  int fsize = ((SIZE) + 3) & -4;				\
+  int big = 0;							\
+  FUNCTION_EXTRA_EPILOGUE (FILE, SIZE);				\
+  nregs = 0;  fmask = 0; fpoffset = 0;				\
+  for (regno = 24 ; regno < 56 ; regno++)			\
+    if (regs_ever_live[regno] && ! call_used_regs[regno])	\
+      nregs++;							\
+  fpoffset = nregs*8;						\
+  nregs = 0;							\
+  for (regno = 16; regno < 24; regno++)				\
+    if (regs_ever_live[regno] && ! call_used_regs[regno])	\
+      { nregs++; fmask |= 1 << (23 - regno); }			\
+  foffset = fpoffset + 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 					\
+      && (mask || fmask || fpoffset)) 				\
+    { fprintf (FILE, "\tmovel #%d,a0\n", -fsize);		\
+      fsize = 0, big = 1; }					\
+  if (exact_log2 (mask) >= 0) {					\
+    if (big)							\
+      fprintf (FILE, "\tmovel a6@(-%d,a0:l),%s\n",		\
+	       offset + fsize, reg_names[exact_log2 (mask)]);	\
+    else if (! frame_pointer_needed)				\
+      fprintf (FILE, "\tmovel sp@+,%s\n",			\
+	       reg_names[exact_log2 (mask)]);			\
+    else							\
+      fprintf (FILE, "\tmovel a6@(-%d),%s\n",			\
+	       offset + fsize, reg_names[exact_log2 (mask)]); }	\
+  else if (mask) {						\
+    if (big)							\
+      fprintf (FILE, "\tmoveml a6@(-%d,a0:l),#0x%x\n",		\
+	       offset + fsize, mask);				\
+    else if (! frame_pointer_needed)				\
+      fprintf (FILE, "\tmoveml sp@+,#0x%x\n", mask);		\
+    else							\
+      fprintf (FILE, "\tmoveml a6@(-%d),#0x%x\n",		\
+	       offset + fsize, mask); }				\
+  if (fmask) {							\
+    if (big)							\
+      fprintf (FILE, "\tfmovem a6@(-%d,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 a6@(-%d),#0x%x\n",		\
+	       foffset + fsize, fmask); }			\
+  if (fpoffset != 0)						\
+    for (regno = 55; regno >= 24; regno--)			\
+      if (regs_ever_live[regno] && ! call_used_regs[regno]) {	\
+	if (big)						\
+	  fprintf(FILE, "\tfpmoved a6@(-%d,a0:l), %s\n",	\
+		  fpoffset + fsize, reg_names[regno]);		\
+	else if (! frame_pointer_needed)			\
+	  fprintf(FILE, "\tfpmoved sp@+, %s\n",			\
+		  reg_names[regno]);				\
+	else							\
+	  fprintf(FILE, "\tfpmoved a6@(-%d), %s\n",		\
+		  fpoffset + fsize, reg_names[regno]);		\
+	fpoffset -= 8;						\
+      }								\
+  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"); }
+
+/* This is a hook for other tm files to change.  */
+#define FUNCTION_EXTRA_EPILOGUE(FILE, SIZE)
+
+/* If the memory address ADDR is relative to the frame pointer,
+   correct it to be relative to the stack pointer instead.
+   This is for when we don't use a frame pointer.
+   ADDR should be a variable name.  */
+
+#define FIX_FRAME_POINTER_ADDRESS(ADDR,DEPTH)  \
+{ int offset = -1;							\
+  rtx regs = stack_pointer_rtx;						\
+  if (ADDR == frame_pointer_rtx)					\
+    offset = 0;								\
+  else if (GET_CODE (ADDR) == PLUS && XEXP (ADDR, 0) == frame_pointer_rtx \
+	   && GET_CODE (XEXP (ADDR, 1)) == CONST_INT)			\
+    offset = INTVAL (XEXP (ADDR, 1));					\
+  else if (GET_CODE (ADDR) == PLUS && XEXP (ADDR, 0) == frame_pointer_rtx) \
+    { rtx other_reg = XEXP (ADDR, 1);					\
+      offset = 0;							\
+      regs = gen_rtx (PLUS, Pmode, stack_pointer_rtx, other_reg); }	\
+  else if (GET_CODE (ADDR) == PLUS && XEXP (ADDR, 1) == frame_pointer_rtx) \
+    { rtx other_reg = XEXP (ADDR, 0);					\
+      offset = 0;							\
+      regs = gen_rtx (PLUS, Pmode, stack_pointer_rtx, other_reg); }	\
+  else if (GET_CODE (ADDR) == PLUS					\
+	   && GET_CODE (XEXP (ADDR, 0)) == PLUS				\
+	   && XEXP (XEXP (ADDR, 0), 0) == frame_pointer_rtx		\
+	   && GET_CODE (XEXP (ADDR, 1)) == CONST_INT)			\
+    { rtx other_reg = XEXP (XEXP (ADDR, 0), 1);				\
+      offset = INTVAL (XEXP (ADDR, 1));					\
+      regs = gen_rtx (PLUS, Pmode, stack_pointer_rtx, other_reg); }	\
+  else if (GET_CODE (ADDR) == PLUS					\
+	   && GET_CODE (XEXP (ADDR, 0)) == PLUS				\
+	   && XEXP (XEXP (ADDR, 0), 1) == frame_pointer_rtx		\
+	   && GET_CODE (XEXP (ADDR, 1)) == CONST_INT)			\
+    { rtx other_reg = XEXP (XEXP (ADDR, 0), 0);				\
+      offset = INTVAL (XEXP (ADDR, 1));					\
+      regs = gen_rtx (PLUS, Pmode, stack_pointer_rtx, other_reg); }	\
+  if (offset >= 0)							\
+    { int regno;							\
+      extern char call_used_regs[];					\
+      for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++)		\
+        if (regs_ever_live[regno] && ! call_used_regs[regno])		\
+          offset += 12;							\
+      for (regno = 0; regno < 16; regno++)				\
+	if (regs_ever_live[regno] && ! call_used_regs[regno])		\
+	  offset += 4;							\
+      offset -= 4;							\
+      ADDR = plus_constant (regs, offset + (DEPTH)); } }		\
+
+/* Addressing modes, and classification of registers for them.  */
+
+#define HAVE_POST_INCREMENT
+/* #define HAVE_POST_DECREMENT */
+
+#define HAVE_PRE_DECREMENT
+/* #define HAVE_PRE_INCREMENT */
+
+/* Macros to check register numbers against specific register classes.  */
+
+/* These assume that REGNO is a hard or pseudo reg number.
+   They give nonzero only if REGNO is a hard reg of the suitable class
+   or a pseudo reg currently allocated to a suitable hard reg.
+   Since they use reg_renumber, they are safe only once reg_renumber
+   has been allocated, which happens in local-alloc.c.  */
+
+#define REGNO_OK_FOR_INDEX_P(REGNO) \
+((REGNO) < 16 || (unsigned) reg_renumber[REGNO] < 16)
+#define REGNO_OK_FOR_BASE_P(REGNO) \
+(((REGNO) ^ 010) < 8 || (unsigned) (reg_renumber[REGNO] ^ 010) < 8)
+#define REGNO_OK_FOR_DATA_P(REGNO) \
+((REGNO) < 8 || (unsigned) reg_renumber[REGNO] < 8)
+#define REGNO_OK_FOR_FP_P(REGNO) \
+(((REGNO) ^ 020) < 8 || (unsigned) (reg_renumber[REGNO] ^ 020) < 8)
+#define REGNO_OK_FOR_FPA_P(REGNO) \
+(((REGNO) >= 24 && (REGNO) < 56) || (reg_renumber[REGNO] >= 24 && reg_renumber[REGNO] < 56))
+
+/* Now macros that check whether X is a register and also,
+   strictly, whether it is in a specified class.
+
+   These macros are specific to the 68000, and may be used only
+   in code for printing assembler insns and in conditions for
+   define_optimization.  */
+
+/* 1 if X is a data register.  */
+
+#define DATA_REG_P(X) (REG_P (X) && REGNO_OK_FOR_DATA_P (REGNO (X)))
+
+/* 1 if X is an fp register.  */
+
+#define FP_REG_P(X) (REG_P (X) && REGNO_OK_FOR_FP_P (REGNO (X)))
+
+/* 1 if X is an address register  */
+
+#define ADDRESS_REG_P(X) (REG_P (X) && REGNO_OK_FOR_BASE_P (REGNO (X)))
+
+/* 1 if X is a register in the Sun FPA.  */
+#define FPA_REG_P(X) (REG_P (X) && REGNO_OK_FOR_FPA_P (REGNO (X)))
+
+/* Maximum number of registers that can appear in a valid memory address.  */
+
+#define MAX_REGS_PER_ADDRESS 2
+
+/* Recognize any constant value that is a valid address.  */
+
+#define CONSTANT_ADDRESS_P(X)  CONSTANT_P (X)
+
+/* Nonzero if the constant value X is a legitimate general operand.
+   It is given that X satisfies CONSTANT_P or is a CONST_DOUBLE.  */
+
+#define LEGITIMATE_CONSTANT_P(X) 1
+
+/* The macros REG_OK_FOR..._P assume that the arg is a REG rtx
+   and check its validity for a certain class.
+   We have two alternate definitions for each of them.
+   The usual definition accepts all pseudo regs; the other rejects
+   them unless they have been allocated suitable hard regs.
+   The symbol REG_OK_STRICT causes the latter definition to be used.
+
+   Most source files want to accept pseudo regs in the hope that
+   they will get allocated to the class that the insn wants them to be in.
+   Source files for reload pass need to be strict.
+   After reload, it makes no difference, since pseudo regs have
+   been eliminated by then.  */
+
+#ifndef REG_OK_STRICT
+
+/* Nonzero if X is a hard reg that can be used as an index
+   or if it is a pseudo reg.  */
+#define REG_OK_FOR_INDEX_P(X) ((REGNO (X) ^ 020) >= 8)
+/* Nonzero if X is a hard reg that can be used as a base reg
+   or if it is a pseudo reg.  */
+#define REG_OK_FOR_BASE_P(X) ((REGNO (X) & ~027) != 0)
+
+#else
+
+/* Nonzero if X is a hard reg that can be used as an index.  */
+#define REG_OK_FOR_INDEX_P(X) REGNO_OK_FOR_INDEX_P (REGNO (X))
+/* Nonzero if X is a hard reg that can be used as a base reg.  */
+#define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X))
+
+#endif
+
+/* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression
+   that is a valid memory address for an instruction.
+   The MODE argument is the machine mode for the MEM expression
+   that wants to use this address.
+
+   The other macros defined here are used only in GO_IF_LEGITIMATE_ADDRESS.  */
+
+#define INDIRECTABLE_1_ADDRESS_P(X)  \
+  (CONSTANT_ADDRESS_P (X)						\
+   || (GET_CODE (X) == REG && REG_OK_FOR_BASE_P (X))			\
+   || ((GET_CODE (X) == PRE_DEC || GET_CODE (X) == POST_INC)		\
+       && REG_P (XEXP (X, 0))						\
+       && REG_OK_FOR_BASE_P (XEXP (X, 0)))				\
+   || (GET_CODE (X) == PLUS						\
+       && REG_P (XEXP (X, 0)) && REG_OK_FOR_BASE_P (XEXP (X, 0))	\
+       && GET_CODE (XEXP (X, 1)) == CONST_INT				\
+       && ((unsigned) INTVAL (XEXP (X, 1)) + 0x8000) < 0x10000))
+
+#if 0
+/* This should replace the last two lines
+   except that Sun's assembler does not seem to handle such operands.  */
+       && (TARGET_68020 ? CONSTANT_ADDRESS_P (XEXP (X, 1))		\
+	   : (GET_CODE (XEXP (X, 1)) == CONST_INT			\
+	      && ((unsigned) INTVAL (XEXP (X, 1)) + 0x8000) < 0x10000))))
+#endif
+
+
+#define GO_IF_NONINDEXED_ADDRESS(X, ADDR)  \
+{ if (INDIRECTABLE_1_ADDRESS_P (X)) goto ADDR; }
+
+#define GO_IF_INDEXABLE_BASE(X, ADDR)	\
+{ if (GET_CODE (X) == LABEL_REF) goto ADDR;				\
+  if (GET_CODE (X) == REG && REG_OK_FOR_BASE_P (X)) goto ADDR; }
+
+#define GO_IF_INDEXING(X, ADDR)	\
+{ if (GET_CODE (X) == PLUS && LEGITIMATE_INDEX_P (XEXP (X, 0)))		\
+    { GO_IF_INDEXABLE_BASE (XEXP (X, 1), ADDR); }			\
+  if (GET_CODE (X) == PLUS && LEGITIMATE_INDEX_P (XEXP (X, 1)))		\
+    { GO_IF_INDEXABLE_BASE (XEXP (X, 0), ADDR); } }
+
+#define GO_IF_INDEXED_ADDRESS(X, ADDR)	 \
+{ GO_IF_INDEXING (X, ADDR);						\
+  if (GET_CODE (X) == PLUS)						\
+    { if (GET_CODE (XEXP (X, 1)) == CONST_INT				\
+	  && (unsigned) INTVAL (XEXP (X, 1)) + 0x80 < 0x100)		\
+	{ rtx go_temp = XEXP (X, 0); GO_IF_INDEXING (go_temp, ADDR); }	\
+      if (GET_CODE (XEXP (X, 0)) == CONST_INT				\
+	  && (unsigned) INTVAL (XEXP (X, 0)) + 0x80 < 0x100)		\
+	{ rtx go_temp = XEXP (X, 1); GO_IF_INDEXING (go_temp, ADDR); } } }
+
+#define LEGITIMATE_INDEX_REG_P(X)   \
+  ((GET_CODE (X) == REG && REG_OK_FOR_INDEX_P (X))	\
+   || (GET_CODE (X) == SIGN_EXTEND			\
+       && GET_CODE (XEXP (X, 0)) == REG			\
+       && GET_MODE (XEXP (X, 0)) == HImode		\
+       && REG_OK_FOR_INDEX_P (XEXP (X, 0))))
+
+#define LEGITIMATE_INDEX_P(X)   \
+   (LEGITIMATE_INDEX_REG_P (X)				\
+    || (TARGET_68020 && GET_CODE (X) == MULT		\
+	&& LEGITIMATE_INDEX_REG_P (XEXP (X, 0))		\
+	&& GET_CODE (XEXP (X, 1)) == CONST_INT		\
+	&& (INTVAL (XEXP (X, 1)) == 2			\
+	    || INTVAL (XEXP (X, 1)) == 4		\
+	    || INTVAL (XEXP (X, 1)) == 8)))
+
+#define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR)  \
+{ GO_IF_NONINDEXED_ADDRESS (X, ADDR);			\
+  GO_IF_INDEXED_ADDRESS (X, ADDR); }
+
+/* Try machine-dependent ways of modifying an illegitimate address
+   to be legitimate.  If we find one, return the new, valid address.
+   This macro is used in only one place: `memory_address' in explow.c.
+
+   OLDX is the address as it was before break_out_memory_refs was called.
+   In some cases it is useful to look at this to decide what needs to be done.
+
+   MODE and WIN are passed so that this macro can use
+   GO_IF_LEGITIMATE_ADDRESS.
+
+   It is always safe for this macro to do nothing.  It exists to recognize
+   opportunities to optimize the output.
+
+   For the 68000, we handle X+REG by loading X into a register R and
+   using R+REG.  R will go in an address reg and indexing will be used.
+   However, if REG is a broken-out memory address or multiplication,
+   nothing needs to be done because REG can certainly go in an address reg.  */
+
+#define LEGITIMIZE_ADDRESS(X,OLDX,MODE,WIN)   \
+{ register int ch = (X) != (OLDX);					\
+  if (GET_CODE (X) == PLUS)						\
+    { if (GET_CODE (XEXP (X, 0)) == MULT)				\
+	ch = 1, XEXP (X, 0) = force_operand (XEXP (X, 0), 0);		\
+      if (GET_CODE (XEXP (X, 1)) == MULT)				\
+	ch = 1, XEXP (X, 1) = force_operand (XEXP (X, 1), 0);		\
+      if (ch && GET_CODE (XEXP (X, 1)) == REG				\
+	  && GET_CODE (XEXP (X, 0)) == REG)				\
+	return X;							\
+      if (ch) { GO_IF_LEGITIMATE_ADDRESS (MODE, X, WIN); }		\
+      if (GET_CODE (XEXP (X, 0)) == REG					\
+	       || (GET_CODE (XEXP (X, 0)) == SIGN_EXTEND		\
+		   && GET_CODE (XEXP (XEXP (X, 0), 0)) == REG		\
+		   && GET_MODE (XEXP (XEXP (X, 0), 0)) == HImode))	\
+	{ register rtx temp = gen_reg_rtx (Pmode);			\
+	  register rtx val = force_operand (XEXP (X, 1), 0);		\
+	  emit_move_insn (temp, val);					\
+	  XEXP (X, 1) = temp;						\
+	  return X; }							\
+      else if (GET_CODE (XEXP (X, 1)) == REG				\
+	       || (GET_CODE (XEXP (X, 1)) == SIGN_EXTEND		\
+		   && GET_CODE (XEXP (XEXP (X, 1), 0)) == REG		\
+		   && GET_MODE (XEXP (XEXP (X, 1), 0)) == HImode))	\
+	{ register rtx temp = gen_reg_rtx (Pmode);			\
+	  register rtx val = force_operand (XEXP (X, 0), 0);		\
+	  emit_move_insn (temp, val);					\
+	  XEXP (X, 0) = temp;						\
+	  return X; }}}
+
+/* Go to LABEL if ADDR (a legitimate address expression)
+   has an effect that depends on the machine mode it is used for.
+   On the 68000, only predecrement and postincrement address depend thus
+   (the amount of decrement or increment being the length of the operand).  */
+
+#define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL)	\
+ if (GET_CODE (ADDR) == POST_INC || GET_CODE (ADDR) == PRE_DEC) goto LABEL
+
+/* Specify the machine mode that this machine uses
+   for the index in the tablejump instruction.  */
+#define CASE_VECTOR_MODE HImode
+
+/* Define this if the tablejump instruction expects the table
+   to contain offsets from the address of the table.
+   Do not define this if the table should contain absolute addresses.  */
+#define CASE_VECTOR_PC_RELATIVE
+
+/* Specify the tree operation to be used to convert reals to integers.  */
+#define IMPLICIT_FIX_EXPR FIX_ROUND_EXPR
+
+/* This is the kind of divide that is easiest to do in the general case.  */
+#define EASY_DIV_EXPR TRUNC_DIV_EXPR
+
+/* Define this as 1 if `char' should by default be signed; else as 0.  */
+#define DEFAULT_SIGNED_CHAR 1
+
+/* Max number of bytes we can move from memory to memory
+   in one reasonably fast instruction.  */
+#define MOVE_MAX 4
+
+/* Define this if zero-extension is slow (more than one real instruction).  */
+#define SLOW_ZERO_EXTEND
+
+/* Nonzero if access to memory by bytes is slow and undesirable.  */
+#define SLOW_BYTE_ACCESS 0
+
+/* Define if shifts truncate the shift count
+   which implies one can omit a sign-extension or zero-extension
+   of a shift count.  */
+#define SHIFT_COUNT_TRUNCATED
+
+/* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits
+   is done just by pretending it is already truncated.  */
+#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
+
+/* We assume that the store-condition-codes instructions store 0 for false
+   and some other value for true.  This is the value stored for true.  */
+
+#define STORE_FLAG_VALUE -1
+
+/* When a prototype says `char' or `short', really pass an `int'.  */
+#define PROMOTE_PROTOTYPES
+
+/* Specify the machine mode that pointers have.
+   After generation of rtl, the compiler makes no further distinction
+   between pointers and any other objects of this machine mode.  */
+#define Pmode SImode
+
+/* A function address in a call instruction
+   is a byte address (for indexing purposes)
+   so give the MEM rtx a byte's mode.  */
+#define FUNCTION_MODE QImode
+
+/* Compute the cost of computing a constant rtl expression RTX
+   whose rtx-code is CODE.  The body of this macro is a portion
+   of a switch statement.  If the code is computed here,
+   return it with a return statement.  Otherwise, break from the switch.  */
+
+#define CONST_COSTS(RTX,CODE) \
+  case CONST_INT:						\
+    /* Constant zero is super cheap due to clr instruction.  */	\
+    if (RTX == const0_rtx) return 0;				\
+    if ((unsigned) INTVAL (RTX) < 077) return 1;		\
+  case CONST:							\
+  case LABEL_REF:						\
+  case SYMBOL_REF:						\
+    return 3;							\
+  case CONST_DOUBLE:						\
+    return 5;
+
+/* Tell final.c how to eliminate redundant test instructions.  */
+
+/* Here we define machine-dependent flags and fields in cc_status
+   (see `conditions.h').  */
+
+/* Set if the cc value is actually in the 68881, so a floating point
+   conditional branch must be output.  */
+#define CC_IN_68881 04000
+
+/* Store in cc_status the expressions
+   that the condition codes will describe
+   after execution of an instruction whose pattern is EXP.
+   Do not alter them if the instruction would not alter the cc's.  */
+
+/* On the 68000, all the insns to store in an address register
+   fail to set the cc's.  However, in some cases these instructions
+   can make it possibly invalid to use the saved cc's.  In those
+   cases we clear out some or all of the saved cc's so they won't be used.  */
+
+/* It was claimed recently that addq, subq to an address register
+   do update the cc's, but the 68000 and 68020 manuals say otherwise.  */
+
+#define NOTICE_UPDATE_CC(EXP, INSN) \
+{								\
+  /* If the cc is being set from the fpa and the
+     expression is not an explicit floating point
+     test instruction (which has code to deal with
+     this), reinit the CC */					\
+  if (((cc_status.value1 && FPA_REG_P (cc_status.value1))	\
+       || (cc_status.value2 && FPA_REG_P (cc_status.value2)))	\
+      && !(GET_CODE(EXP) == PARALLEL				\
+	   && GET_CODE (XVECEXP(EXP, 0, 0)) == SET		\
+	   && XEXP (XVECEXP (EXP, 0, 0), 0) == cc0_rtx))	\
+    { CC_STATUS_INIT; }						\
+  else if (GET_CODE (EXP) == SET)				\
+    { if (ADDRESS_REG_P (SET_DEST (EXP)))			\
+	{ if (cc_status.value1					\
+	      && reg_overlap_mentioned_p (SET_DEST (EXP), cc_status.value1)) \
+	    cc_status.value1 = 0;				\
+	  if (cc_status.value2					\
+	      && reg_overlap_mentioned_p (SET_DEST (EXP), cc_status.value2)) \
+	    cc_status.value2 = 0; }				\
+      else if (!FP_REG_P (SET_DEST (EXP))			\
+	       && SET_DEST (EXP) != cc0_rtx			\
+	       && (FP_REG_P (SET_SRC (EXP))			\
+		   || GET_CODE (SET_SRC (EXP)) == FIX		\
+		   || GET_CODE (SET_SRC (EXP)) == FLOAT_TRUNCATE \
+		   || GET_CODE (SET_SRC (EXP)) == FLOAT_EXTEND)) \
+	{ CC_STATUS_INIT; }					\
+      /* A pair of move insns doesn't produce a useful overall cc.  */ \
+      else if (!FP_REG_P (SET_DEST (EXP))			\
+	       && !FP_REG_P (SET_SRC (EXP))			\
+	       && GET_MODE_SIZE (GET_MODE (SET_SRC (EXP))) > 4	\
+	       && (GET_CODE (SET_SRC (EXP)) == REG		\
+		   || GET_CODE (SET_SRC (EXP)) == MEM		\
+		   || GET_CODE (SET_SRC (EXP)) == CONST_DOUBLE))\
+	{ CC_STATUS_INIT; }					\
+      else if (GET_CODE (SET_SRC (EXP)) == CALL)		\
+	{ CC_STATUS_INIT; }					\
+      else if (XEXP (EXP, 0) != pc_rtx)				\
+	{ cc_status.flags = 0;					\
+	  cc_status.value1 = XEXP (EXP, 0);			\
+	  cc_status.value2 = XEXP (EXP, 1); } }			\
+  else if (GET_CODE (EXP) == PARALLEL				\
+	   && GET_CODE (XVECEXP (EXP, 0, 0)) == SET)		\
+    {								\
+      if (ADDRESS_REG_P (XEXP (XVECEXP (EXP, 0, 0), 0)))	\
+	CC_STATUS_INIT;						\
+      else if (XEXP (XVECEXP (EXP, 0, 0), 0) != pc_rtx)		\
+	{ cc_status.flags = 0;					\
+	  cc_status.value1 = XEXP (XVECEXP (EXP, 0, 0), 0);	\
+	  cc_status.value2 = XEXP (XVECEXP (EXP, 0, 0), 1); } }	\
+  else CC_STATUS_INIT;						\
+  if (cc_status.value2 != 0					\
+      && ADDRESS_REG_P (cc_status.value2)			\
+      && GET_MODE (cc_status.value2) == QImode)			\
+    CC_STATUS_INIT;						\
+  if (cc_status.value2 != 0					\
+      && !(cc_status.value1 && FPA_REG_P (cc_status.value1)))	\
+    switch (GET_CODE (cc_status.value2))			\
+      { case PLUS: case MINUS: case MULT: case UMULT:		\
+	case DIV: case UDIV: case MOD: case UMOD: case NEG:	\
+	case ASHIFT: case LSHIFT: case ASHIFTRT: case LSHIFTRT:	\
+	case ROTATE: case ROTATERT:				\
+	  if (GET_MODE (cc_status.value2) != VOIDmode)		\
+	    cc_status.flags |= CC_NO_OVERFLOW;			\
+	  break;						\
+	case ZERO_EXTEND:					\
+	case ZERO_EXTRACT:					\
+	  /* (SET r1 (ZERO_EXTEND r2)) on this machine
+	     ends with a move insn moving r2 in r2's mode.
+	     Thus, the cc's are set for r2.
+	     This can set N bit spuriously. */			\
+	  cc_status.flags |= CC_NOT_NEGATIVE; }			\
+  if (cc_status.value1 && GET_CODE (cc_status.value1) == REG	\
+      && cc_status.value2					\
+      && reg_overlap_mentioned_p (cc_status.value1, cc_status.value2))	\
+    cc_status.value2 = 0;					\
+  if (((cc_status.value1 && FP_REG_P (cc_status.value1))	\
+       || (cc_status.value2 && FP_REG_P (cc_status.value2)))	\
+      && !((cc_status.value1 && FPA_REG_P (cc_status.value1))	\
+	   || (cc_status.value2 && FPA_REG_P (cc_status.value2)))) \
+    cc_status.flags = CC_IN_68881; }
+
+#define OUTPUT_JUMP(NORMAL, FLOAT, NO_OV)  \
+do { if (cc_prev_status.flags & CC_IN_68881)			\
+       return FLOAT;						\
+     if (cc_prev_status.flags & CC_NO_OVERFLOW)			\
+       return NO_OV;						\
+     return NORMAL; } while (0)
+
+/* Control the assembler format that we output.  */
+
+/* Output at beginning of assembler file.  */
+
+#define ASM_FILE_START(FILE)	\
+  fprintf (FILE, "#NO_APP\n");
+
+/* Output to assembler file text saying following lines
+   may contain character constants, extra white space, comments, etc.  */
+
+#define ASM_APP_ON "#APP\n"
+
+/* Output to assembler file text saying following lines
+   no longer contain unusual constructs.  */
+
+#define ASM_APP_OFF "#NO_APP\n"
+
+/* Output before read-only data.  */
+
+#define TEXT_SECTION_ASM_OP ".text"
+
+/* Output before writable data.  */
+
+#define DATA_SECTION_ASM_OP ".data"
+
+/* How to refer to registers in assembler output.
+   This sequence is indexed by compiler's hard-register-number (see above).  */
+
+#define REGISTER_NAMES \
+{"d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7",	\
+ "a0", "a1", "a2", "a3", "a4", "a5", "a6", "sp",	\
+ "fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7", \
+ "fpa0", "fpa1", "fpa2", "fpa3", "fpa4", "fpa5", "fpa6", "fpa7", \
+ "fpa8", "fpa9", "fpa10", "fpa11", "fpa12", "fpa13", "fpa14", "fpa15", \
+ "fpa16", "fpa17", "fpa18", "fpa19", "fpa20", "fpa21", "fpa22", "fpa23", \
+ "fpa24", "fpa25", "fpa26", "fpa27", "fpa28", "fpa29", "fpa30", "fpa31", }
+
+/* How to renumber registers for dbx and gdb.
+   On the Sun-3, the floating point registers have numbers
+   18 to 25, not 16 to 23 as they do in the compiler.  */
+
+#define DBX_REGISTER_NUMBER(REGNO) ((REGNO) < 16 ? (REGNO) : (REGNO) + 2)
+
+/* This is how to output the definition of a user-level label named NAME,
+   such as the label on a static function or variable NAME.  */
+
+#define ASM_OUTPUT_LABEL(FILE,NAME)	\
+  do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0)
+
+/* 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 (".globl ", FILE); assemble_name (FILE, NAME); fputs ("\n", FILE);} while (0)
+
+/* This is how to output a reference to a user-level label named NAME.
+   `assemble_name' uses this.  */
+
+#define ASM_OUTPUT_LABELREF(FILE,NAME)	\
+  fprintf (FILE, "_%s", NAME)
+
+/* This is how to output an internal numbered label where
+   PREFIX is the class of label and NUM is the number within the class.  */
+
+#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM)	\
+  fprintf (FILE, "%s%d:\n", PREFIX, NUM)
+
+/* This is how to store into the string LABEL
+   the symbol_ref name of an internal numbered label where
+   PREFIX is the class of label and NUM is the number within the class.
+   This is suitable for output with `assemble_name'.  */
+
+#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)	\
+  sprintf (LABEL, "*%s%d", PREFIX, NUM)
+
+/* This is how to output an assembler line defining a `double' constant.  */
+
+#define ASM_OUTPUT_DOUBLE(FILE,VALUE)  \
+  fprintf (FILE, "\t.double 0r%.20g\n", (VALUE))
+
+/* This is how to output an assembler line defining a `float' constant.  */
+
+/* Sun's assembler can't handle floating constants written as floating.
+   However, when cross-compiling, always use that in case format differs.  */
+
+#ifdef CROSS_COMPILER
+
+#define ASM_OUTPUT_FLOAT(FILE,VALUE)  \
+  fprintf (FILE, "\t.float 0r%.10g\n", (VALUE))
+
+#else
+
+#define ASM_OUTPUT_FLOAT(FILE,VALUE)  \
+do { union { float f; long l;} tem;			\
+     tem.f = (VALUE);					\
+     fprintf (FILE, "\t.long 0x%x\n", tem.l);	\
+   } while (0)
+
+#endif /* not CROSS_COMPILER */
+
+/* This is how to output an assembler line defining an `int' constant.  */
+
+#define ASM_OUTPUT_INT(FILE,VALUE)  \
+( fprintf (FILE, "\t.long "),			\
+  output_addr_const (FILE, (VALUE)),		\
+  fprintf (FILE, "\n"))
+
+/* Likewise for `char' and `short' constants.  */
+
+#define ASM_OUTPUT_SHORT(FILE,VALUE)  \
+( fprintf (FILE, "\t.word "),			\
+  output_addr_const (FILE, (VALUE)),		\
+  fprintf (FILE, "\n"))
+
+#define ASM_OUTPUT_CHAR(FILE,VALUE)  \
+( fprintf (FILE, "\t.byte "),			\
+  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, "\t.byte 0x%x\n", (VALUE))
+
+/* This is how to output an insn to push a register on the stack.
+   It need not be very fast code.  */
+
+#define ASM_OUTPUT_REG_PUSH(FILE,REGNO)  \
+  fprintf (FILE, "\tmovel %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.  */
+
+#define ASM_OUTPUT_REG_POP(FILE,REGNO)  \
+  fprintf (FILE, "\tmovel sp@+,%s\n", reg_names[REGNO])
+
+/* This is how to output an element of a case-vector that is absolute.
+   (The 68000 does not use such vectors,
+   but we must define this macro anyway.)  */
+
+#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE)  \
+  fprintf (FILE, "\t.long L%d\n", VALUE)
+
+/* This is how to output an element of a case-vector that is relative.  */
+
+#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL)  \
+  fprintf (FILE, "\t.word L%d-L%d\n", VALUE, REL)
+
+/* This is how to output an assembler line
+   that says to advance the location counter
+   to a multiple of 2**LOG bytes.  */
+
+#define ASM_OUTPUT_ALIGN(FILE,LOG)	\
+  if ((LOG) == 1)			\
+    fprintf (FILE, "\t.even\n");	\
+  else if ((LOG) != 0)			\
+    abort ();
+
+#define ASM_OUTPUT_SKIP(FILE,SIZE)  \
+  fprintf (FILE, "\t.skip %u\n", (SIZE))
+
+/* This says how to output an assembler line
+   to define a global common symbol.  */
+
+#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED)  \
+( fputs (".comm ", (FILE)),			\
+  assemble_name ((FILE), (NAME)),		\
+  fprintf ((FILE), ",%u\n", (ROUNDED)))
+
+/* This says how to output an assembler line
+   to define a local common symbol.  */
+
+#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED)  \
+( fputs (".lcomm ", (FILE)),			\
+  assemble_name ((FILE), (NAME)),		\
+  fprintf ((FILE), ",%u\n", (ROUNDED)))
+
+/* 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)) + 10),	\
+  sprintf ((OUTPUT), "%s.%d", (NAME), (LABELNO)))
+
+/* Define the parentheses used to group arithmetic operations
+   in assembler code.  */
+
+#define ASM_OPEN_PAREN "("
+#define ASM_CLOSE_PAREN ")"
+
+/* Define results of standard character escape sequences.  */
+#define TARGET_BELL 007
+#define TARGET_BS 010
+#define TARGET_TAB 011
+#define TARGET_NEWLINE 012
+#define TARGET_VT 013
+#define TARGET_FF 014
+#define TARGET_CR 015
+
+/* Output a float value (represented as a C double) as an immediate operand.
+   This macro is a 68k-specific macro.  */
+#define ASM_OUTPUT_FLOAT_OPERAND(FILE,VALUE)				\
+  fprintf (FILE, "#0r%.9g", (VALUE))
+
+/* Output a double value (represented as a C double) as an immediate operand.
+   This macro is a 68k-specific macro.  */
+#define ASM_OUTPUT_DOUBLE_OPERAND(FILE,VALUE)				\
+  fprintf (FILE, "#0r%.20g", (VALUE))
+
+/* Print operand X (an rtx) in assembler syntax to file FILE.
+   CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified.
+   For `%' followed by punctuation, CODE is the punctuation and X is null.
+
+   On the 68000, we use several CODE characters:
+   '.' for dot needed in Motorola-style opcode names.
+   '-' for an operand pushing on the stack:
+       sp@-, -(sp) or -(%sp) depending on the style of syntax.
+   '+' for an operand pushing on the stack:
+       sp@+, (sp)+ or (%sp)+ depending on the style of syntax.
+   '@' for a reference to the top word on the stack:
+       sp@, (sp) or (%sp) depending on the style of syntax.
+   '#' for an immediate operand prefix (# in MIT and Motorola syntax
+       but & in SGS syntax).
+   '!' for the cc register (used in an `and to cc' insn).
+
+   'b' for byte insn (no effect, on the Sun; this is for the ISI).
+   'd' to force memory addressing to be absolute, not relative.
+   'f' for float insn (print a CONST_DOUBLE as a float rather than in hex)
+   'w' for FPA insn (print a CONST_DOUBLE as a SunFPA constant rather
+       than directly).  Second part of 'y' below.
+   'x' for float insn (print a CONST_DOUBLE as a float rather than in hex),
+       or print pair of registers as rx:ry.
+   'y' for a FPA insn (print pair of registers as rx:ry).  This also outputs
+       CONST_DOUBLE's as SunFPA constant RAM registers if
+       possible, so it should not be used except for the SunFPA. */
+
+#define PRINT_OPERAND_PUNCT_VALID_P(CODE)				\
+  ((CODE) == '.' || (CODE) == '#' || (CODE) == '-'			\
+   || (CODE) == '+' || (CODE) == '@' || (CODE) == '!')
+
+/* This assumes the compiler is running on a big-endian machine.
+   The support for the other case is left for version 2.  */
+#define PRINT_OPERAND_EXTRACT_FLOAT(X)					\
+      u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X);
+
+#ifdef CROSS_COMPILER
+#define PRINT_OPERAND_PRINT_FLOAT(CODE, FILE)   \
+  ASM_OUTPUT_FLOAT_OPERAND (FILE, u1.f);
+#else
+#define PRINT_OPERAND_PRINT_FLOAT(CODE, FILE)   \
+{ if (CODE == 'f')							\
+    ASM_OUTPUT_FLOAT_OPERAND (FILE, u1.f);				\
+  else									\
+    fprintf (FILE, "#0x%x", u1.i); }
+#endif
+
+#define PRINT_OPERAND(FILE, X, CODE)  \
+{ int i;								\
+  if (CODE == '.') ;							\
+  else if (CODE == '#') fprintf (FILE, "#");				\
+  else if (CODE == '-') fprintf (FILE, "sp@-");				\
+  else if (CODE == '+') fprintf (FILE, "sp@+");				\
+  else if (CODE == '@') fprintf (FILE, "sp@");				\
+  else if (CODE == '!') fprintf (FILE, "cc");				\
+  else if (GET_CODE (X) == REG)						\
+    { if (REGNO (X) < 16 && (CODE == 'y' || CODE == 'x') && GET_MODE (X) == DFmode)	\
+        fprintf (FILE, "%s:%s", reg_names[REGNO (X)], reg_names[REGNO (X)+1]); \
+      else								\
+        fprintf (FILE, "%s", reg_names[REGNO (X)]);			\
+    }									\
+  else if (GET_CODE (X) == MEM)						\
+    {									\
+      output_address (XEXP (X, 0));					\
+      if (CODE == 'd' && ! TARGET_68020					\
+	  && CONSTANT_ADDRESS_P (XEXP (X, 0))				\
+	  && !(GET_CODE (XEXP (X, 0)) == CONST_INT			\
+	       && INTVAL (XEXP (X, 0)) < 0x8000				\
+	       && INTVAL (XEXP (X, 0)) >= -0x8000))			\
+	fprintf (FILE, ":l");						\
+    }									\
+  else if ((CODE == 'y' || CODE == 'w')					\
+	   && GET_CODE(X) == CONST_DOUBLE				\
+	   && (i = standard_sun_fpa_constant_p (X)))			\
+    fprintf (FILE, "%%%d", i & 0x1ff);					\
+  else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == SFmode)	\
+    { union { double d; int i[2]; } u;					\
+      union { float f; int i; } u1;					\
+      PRINT_OPERAND_EXTRACT_FLOAT (X);					\
+      u1.f = u.d;							\
+      PRINT_OPERAND_PRINT_FLOAT (CODE, FILE); }				\
+  else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) != DImode)	\
+    { union { double d; int i[2]; } u;					\
+      PRINT_OPERAND_EXTRACT_FLOAT (X);					\
+      ASM_OUTPUT_DOUBLE_OPERAND (FILE, u.d); }				\
+  else { putc ('#', FILE); output_addr_const (FILE, X); }}
+
+/* Note that this contains a kludge that knows that the only reason
+   we have an address (plus (label_ref...) (reg...))
+   is in the insn before a tablejump, and we know that m68k.md
+   generates a label LInnn: on such an insn.  */
+#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_names[REGNO (addr)]);			\
+      break;								\
+    case PRE_DEC:							\
+      fprintf (FILE, "%s@-", reg_names[REGNO (XEXP (addr, 0))]);	\
+      break;								\
+    case POST_INC:							\
+      fprintf (FILE, "%s@+", reg_names[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, "pc@(L%d-LI%d-2:b,%s:w",			\
+		     CODE_LABEL_NUMBER (XEXP (addr, 0)),		\
+		     CODE_LABEL_NUMBER (XEXP (addr, 0)),		\
+		     reg_names[REGNO (XEXP (ireg, 0))]); 		\
+	  else								\
+	    fprintf (FILE, "pc@(L%d-LI%d-2:b,%s:l",			\
+		     CODE_LABEL_NUMBER (XEXP (addr, 0)),		\
+		     CODE_LABEL_NUMBER (XEXP (addr, 0)),		\
+		     reg_names[REGNO (ireg)]);				\
+	  if (scale != 1) fprintf (FILE, ":%d", scale);			\
+	  putc (')', FILE);						\
+	  break; }							\
+      if (breg != 0 && ireg == 0 && GET_CODE (addr) == LABEL_REF)	\
+        { fprintf (FILE, "pc@(L%d-LI%d-2:b,%s:l",			\
+		   CODE_LABEL_NUMBER (XEXP (addr, 0)),			\
+		   CODE_LABEL_NUMBER (XEXP (addr, 0)),			\
+		   reg_names[REGNO (breg)]);				\
+	  putc (')', FILE);						\
+	  break; }							\
+      if (ireg != 0 || breg != 0)					\
+	{ int scale = 1;						\
+	  if (breg == 0)						\
+	    abort ();							\
+	  if (addr && GET_CODE (addr) == LABEL_REF) abort ();		\
+	  fprintf (FILE, "%s@(", reg_names[REGNO (breg)]);		\
+	  if (addr != 0)						\
+	    output_addr_const (FILE, addr);				\
+	  if (addr != 0 && 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_names[REGNO (XEXP (ireg, 0))]);	\
+	  else if (ireg != 0)						\
+	    fprintf (FILE, "%s:l", reg_names[REGNO (ireg)]);		\
+	  if (scale != 1) fprintf (FILE, ":%d", scale);			\
+	  putc (')', FILE);						\
+	  break;							\
+	}								\
+      else if (reg1 != 0 && GET_CODE (addr) == LABEL_REF)		\
+	{ fprintf (FILE, "pc@(L%d-LI%d-2:b,%s:l)",			\
+		   CODE_LABEL_NUMBER (XEXP (addr, 0)),			\
+		   CODE_LABEL_NUMBER (XEXP (addr, 0)),			\
+		   reg_names[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);					\
+    }}
+
+/*
+Local variables:
+version-control: t
+End:
+*/