h8300.h

linux下的gcc编译器

   GCC requires SIZE_TYPE to be the same size as pointers.  */
#define SIZE_TYPE								\
  (TARGET_H8300 || TARGET_NORMAL_MODE ? "unsigned int" : "long unsigned int")
#define PTRDIFF_TYPE						\
  (TARGET_H8300 || TARGET_NORMAL_MODE ? "int" : "long int")

#define POINTER_SIZE							\
  ((TARGET_H8300H || TARGET_H8300S) && !TARGET_NORMAL_MODE ? 32 : 16)

#define WCHAR_TYPE "short unsigned int"
#define WCHAR_TYPE_SIZE 16
#define MAX_WCHAR_TYPE_SIZE 16

/* 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

#define ADJUST_INSN_LENGTH(INSN, LENGTH) \
  LENGTH += h8300_adjust_insn_length (INSN, LENGTH);

/* 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 DEFAULT_RTX_COSTS(RTX, CODE, OUTER_CODE) \
  return (const_costs (RTX, CODE, OUTER_CODE));

#define BRANCH_COST 0

/* We say that MOD and DIV are so cheap because otherwise we'll
   generate some really horrible code for division of a power of two.  */

/* Provide the costs of a rtl expression.  This is in the body of a
   switch on CODE.  */

#define RTX_COSTS(RTX, CODE, OUTER_CODE)		\
  case AND:						\
    return COSTS_N_INSNS (h8300_and_costs (RTX));	\
  case MOD:						\
  case DIV:						\
    return 60;						\
  case MULT:						\
    return 20;						\
  case ASHIFT:						\
  case ASHIFTRT:					\
  case LSHIFTRT:					\
    return COSTS_N_INSNS (h8300_shift_costs (RTX));	\
  case ROTATE:						\
  case ROTATERT:					\
    if (GET_MODE (RTX) == HImode) return 2;		\
    return 8;

/* Tell final.c how to eliminate redundant test instructions.  */

/* Here we define machine-dependent flags and fields in cc_status
   (see `conditions.h').  No extra ones are needed for the h8300.  */

/* 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.  */

#define NOTICE_UPDATE_CC(EXP, INSN) notice_update_cc (EXP, INSN)

/* The add insns don't set overflow in a usable way.  */
#define CC_OVERFLOW_UNUSABLE 01000
/* The mov,and,or,xor insns don't set carry.  That's OK though as the
   Z bit is all we need when doing unsigned comparisons on the result of
   these insns (since they're always with 0).  However, conditions.h has
   CC_NO_OVERFLOW defined for this purpose.  Rename it to something more
   understandable.  */
#define CC_NO_CARRY CC_NO_OVERFLOW

/* Control the assembler format that we output.  */

/* Output at beginning/end of assembler file.  */

#define ASM_FILE_START(FILE) asm_file_start (FILE)

#define ASM_FILE_END(FILE) asm_file_end (FILE)

/* 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"

#define FILE_ASM_OP "\t.file\n"
#define IDENT_ASM_OP "\t.ident\t"

/* The assembler op to get a word, 2 bytes for the H8/300, 4 for H8/300H.  */
#define ASM_WORD_OP							\
  (TARGET_H8300 || TARGET_NORMAL_MODE ? "\t.word\t" : "\t.long\t")

#define TEXT_SECTION_ASM_OP "\t.section .text"
#define DATA_SECTION_ASM_OP "\t.section .data"
#define BSS_SECTION_ASM_OP "\t.section .bss"
#define INIT_SECTION_ASM_OP "\t.section .init"
#define READONLY_DATA_SECTION_ASM_OP "\t.section .rodata"

#undef DO_GLOBAL_CTORS_BODY
#define DO_GLOBAL_CTORS_BODY			\
{						\
  typedef (*pfunc)();				\
  extern pfunc __ctors[];			\
  extern pfunc __ctors_end[];			\
  pfunc *p;					\
  for (p = __ctors_end; p > __ctors; )		\
    {						\
      (*--p)();					\
    }						\
}

#undef DO_GLOBAL_DTORS_BODY
#define DO_GLOBAL_DTORS_BODY			\
{						\
  typedef (*pfunc)();				\
  extern pfunc __dtors[];			\
  extern pfunc __dtors_end[];			\
  pfunc *p;					\
  for (p = __dtors; p < __dtors_end; p++)	\
    {						\
      (*p)();					\
    }						\
}

#define TINY_DATA_NAME_P(NAME) (*(NAME) == '&')

/* How to refer to registers in assembler output.
   This sequence is indexed by compiler's hard-register-number (see above).  */

#define REGISTER_NAMES \
{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "sp", "mac", "ap", "rap" }

#define ADDITIONAL_REGISTER_NAMES \
{ {"er0", 0}, {"er1", 1}, {"er2", 2}, {"er3", 3}, {"er4", 4}, \
  {"er5", 5}, {"er6", 6}, {"er7", 7}, {"r7", 7} }

#define SDB_DEBUGGING_INFO 1
#define SDB_DELIM	"\n"

/* Support -gstabs.  */

#include "dbxcoff.h"

/* Override definition in dbxcoff.h.  */
/* Generate a blank trailing N_SO to mark the end of the .o file, since
   we can't depend upon the linker to mark .o file boundaries with
   embedded stabs.  */

#undef DBX_OUTPUT_MAIN_SOURCE_FILE_END
#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME)			\
  fprintf (FILE,							\
	   "\t.text\n.stabs \"\",%d,0,0,.Letext\n.Letext:\n", N_SO)

/* Switch into a generic section.  */
#define TARGET_ASM_NAMED_SECTION h8300_asm_named_section

#define ASM_OUTPUT_LABELREF(FILE, NAME)  \
  asm_fprintf ((FILE), "%U%s", (NAME) + (TINY_DATA_NAME_P (NAME) ? 1 : 0))

#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME)

/* Globalizing directive for a label.  */
#define GLOBAL_ASM_OP "\t.global "

#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
   ASM_OUTPUT_LABEL (FILE, NAME)

/* The prefix to add to user-visible assembler symbols.  */

#define USER_LABEL_PREFIX "_"

/* This is how to output an internal numbered label where
   PREFIX is the class of label and NUM is the number within the class.

   N.B.: The h8300.md branch_true and branch_false patterns also know
   how to generate internal labels.  */

#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 insn to push a register on the stack.
   It need not be very fast code.  */

#define ASM_OUTPUT_REG_PUSH(FILE, REGNO) \
  fprintf (FILE, "\t%s\t%s\n", h8_push_op, h8_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, "\t%s\t%s\n", h8_pop_op, h8_reg_names[REGNO])

/* This is how to output an element of a case-vector that is absolute.  */

#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
  fprintf (FILE, "%s.L%d\n", ASM_WORD_OP, VALUE)

/* This is how to output an element of a case-vector that is relative.  */

#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
  fprintf (FILE, "%s.L%d-.L%d\n", ASM_WORD_OP, 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) != 0)				\
    fprintf (FILE, "\t.align %d\n", (LOG))

/* This is how to output an assembler line
   that says to advance the location counter by SIZE bytes.  */

#define ASM_OUTPUT_IDENT(FILE, NAME)			\
  fprintf (FILE, "%s\"%s\"\n", IDENT_ASM_OP, NAME)

#define ASM_OUTPUT_SKIP(FILE, SIZE) \
  fprintf (FILE, "\t.space %d\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 ("\t.comm ", (FILE)),				\
  assemble_name ((FILE), (NAME)),			\
  fprintf ((FILE), ",%d\n", (SIZE)))

/* This says how to output the assembler to define a global
   uninitialized but not common symbol.
   Try to use asm_output_bss to implement this macro.  */

#define ASM_OUTPUT_BSS(FILE, DECL, NAME, SIZE, ROUNDED)		\
  asm_output_bss ((FILE), (DECL), (NAME), (SIZE), (ROUNDED))

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

#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED)	\
( fputs ("\t.lcomm ", (FILE)),				\
  assemble_name ((FILE), (NAME)),			\
  fprintf ((FILE), ",%d\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)) + 10),	\
  sprintf ((OUTPUT), "%s___%d", (NAME), (LABELNO)))

/* Print an instruction operand X on file FILE.
   Look in h8300.c for details.  */

#define PRINT_OPERAND_PUNCT_VALID_P(CODE) \
  ((CODE) == '#')

#define PRINT_OPERAND(FILE, X, CODE) print_operand (FILE, X, CODE)

/* Print a memory operand whose address is X, on file FILE.
   This uses a function in h8300.c.  */

#define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address (FILE, ADDR)

/* H8300 specific pragmas.  */
#define REGISTER_TARGET_PRAGMAS(PFILE)					\
  do									\
    {									\
      cpp_register_pragma (PFILE, 0, "saveall", h8300_pr_saveall);	\
      cpp_register_pragma (PFILE, 0, "interrupt", h8300_pr_interrupt);	\
    }									\
  while (0)

#define FINAL_PRESCAN_INSN(insn, operand, nop)	\
  final_prescan_insn (insn, operand, nop)

/* Define this macro if GNU CC should generate calls to the System V
   (and ANSI C) library functions `memcpy' and `memset' rather than
   the BSD functions `bcopy' and `bzero'.  */

#define TARGET_MEM_FUNCTIONS 1

#define MULHI3_LIBCALL	"__mulhi3"
#define DIVHI3_LIBCALL	"__divhi3"
#define UDIVHI3_LIBCALL	"__udivhi3"
#define MODHI3_LIBCALL	"__modhi3"
#define UMODHI3_LIBCALL	"__umodhi3"

/* Perform target dependent optabs initialization.  */

#define INIT_TARGET_OPTABS					\
  do								\
    {								\
      smul_optab->handlers[(int) HImode].libfunc		\
	= init_one_libfunc (MULHI3_LIBCALL);			\
      sdiv_optab->handlers[(int) HImode].libfunc		\
	= init_one_libfunc (DIVHI3_LIBCALL);			\
      udiv_optab->handlers[(int) HImode].libfunc		\
	= init_one_libfunc (UDIVHI3_LIBCALL);			\
      smod_optab->handlers[(int) HImode].libfunc		\
	= init_one_libfunc (MODHI3_LIBCALL);			\
      umod_optab->handlers[(int) HImode].libfunc		\
	= init_one_libfunc (UMODHI3_LIBCALL);			\
    }								\
  while (0)

#define MOVE_RATIO 3

#endif /* ! GCC_H8300_H */