[thirdparty/gcc.git] / gcc / config / m68k / isi.h

/* Definitions of target machine for GNU compiler.  ISI 68000/68020 version.
   Intended only for use with GAS, and not ISI's assembler, which is buggy
   Copyright (C) 1988, 1996, 1998, 1999 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 2, or (at your option)
any later version.

GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING.  If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

#include "m68k/m68k.h"

/* See m68k.h.  7 means 68020 with 68881. */
#ifndef TARGET_DEFAULT
#define TARGET_DEFAULT (MASK_BITFIELD|MASK_68881|MASK_68020)
#endif

#if TARGET_DEFAULT & MASK_68881
/* Define __HAVE_68881__ in preprocessor, unless -msoft-float is specified.
   This will control the use of inline 68881 insns in certain macros.  */

#define CPP_SPEC "%{!msoft-float:-D__HAVE_68881__}"

/* If the 68881 is used, link must load libmc.a before libc.a.  */

#define LIB_SPEC "%{!msoft-float:%{!p:%{!pg:-lmc}}%{p:-lmc_p}%{pg:-lmc_p}} \
%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} %{g:-lg}"

#else
/* Define __HAVE_68881__ in preprocessor if -m68881 is specified.
   This will control the use of inline 68881 insns in certain macros.  */

#define CPP_SPEC "%{m68881:-D__HAVE_68881__}"

/* If the 68881 is used, link must load libmc.a instead of libc.a */

#define LIB_SPEC "%{m68881:%{!p:%{!pg:-lmc}}%{p:-lmc_p}%{pg:-lmc_p}} \
%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} %{g:-lg}"
#endif

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

#define CPP_PREDEFINES "-Dunix -Dmc68000 -Dis68k -Asystem(unix) -Asystem(bsd) -Acpu(m68k) -Amachine(m68k)"

/* This is BSD, so it wants DBX format.  */

#define DBX_DEBUGGING_INFO

/* Override parts of m68k.h to fit the ISI 68k machine.  */

#undef FUNCTION_VALUE
#undef LIBCALL_VALUE
#undef FUNCTION_VALUE_REGNO_P
#undef NEEDS_UNTYPED_CALL
#undef ASM_FILE_START

/* Every structure or union's size must be a multiple of 2 bytes.  */

#define STRUCTURE_SIZE_BOUNDARY 16

/* If TARGET_68881, return SF and DF values in f0 instead of d0.  */

#define FUNCTION_VALUE(VALTYPE,FUNC) LIBCALL_VALUE (TYPE_MODE (VALTYPE))

#define LIBCALL_VALUE(MODE) \
 gen_rtx_REG ((MODE), ((TARGET_68881 && ((MODE) == SFmode || (MODE) == DFmode)) ? 16 : 0))

/* 1 if N is a possible register number for a function value.
   D0 may be used, and F0 as well if -m68881 is specified.  */

#define FUNCTION_VALUE_REGNO_P(N) \
 ((N) == 0 || (TARGET_68881 && (N) == 16))

/* Define this to be true when FUNCTION_VALUE_REGNO_P is true for
   more than one register.  */

#define NEEDS_UNTYPED_CALL 1

/* Also output something to cause the correct _doprnt to be loaded.  */
#define ASM_FILE_START(FILE) fprintf (FILE, "#NO_APP\n%s\n", TARGET_68881 ? ".globl fltused" : "")
Commit	Line	Data
047292d2 RS	1	/* Definitions of target machine for GNU compiler. ISI 68000/68020 version.
047292d2 RS	2	Intended only for use with GAS, and not ISI's assembler, which is buggy
c5c76735	3	Copyright (C) 1988, 1996, 1998, 1999 Free Software Foundation, Inc.
047292d2 RS	4
	5	This file is part of GNU CC.
	6
	7	GNU CC is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 2, or (at your option)
	10	any later version.
	11
	12	GNU CC is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with GNU CC; see the file COPYING. If not, write to
0e29e3c9 RK	19	the Free Software Foundation, 59 Temple Place - Suite 330,
0e29e3c9 RK	20	Boston, MA 02111-1307, USA. */
047292d2	21
57e51b0e	22	#include "m68k/m68k.h"
047292d2	23
047292d2	24	/* See m68k.h. 7 means 68020 with 68881. */
047292d2	25	#ifndef TARGET_DEFAULT
9811059c	26	#define TARGET_DEFAULT (MASK_BITFIELD\|MASK_68881\|MASK_68020)
047292d2 RS	27	#endif
047292d2 RS	28
9811059c	29	#if TARGET_DEFAULT & MASK_68881
047292d2 RS	30	/* Define __HAVE_68881__ in preprocessor, unless -msoft-float is specified.
	31	This will control the use of inline 68881 insns in certain macros. */
	32
	33	#define CPP_SPEC "%{!msoft-float:-D__HAVE_68881__}"
	34
4239762d	35	/* If the 68881 is used, link must load libmc.a before libc.a. */
047292d2	36
4239762d RS	37	#define LIB_SPEC "%{!msoft-float:%{!p:%{!pg:-lmc}}%{p:-lmc_p}%{pg:-lmc_p}} \
4239762d RS	38	%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} %{g:-lg}"
047292d2 RS	39
	40	#else
	41	/* Define __HAVE_68881__ in preprocessor if -m68881 is specified.
	42	This will control the use of inline 68881 insns in certain macros. */
	43
	44	#define CPP_SPEC "%{m68881:-D__HAVE_68881__}"
	45
	46	/* If the 68881 is used, link must load libmc.a instead of libc.a */
	47
032b92e5 RS	48	#define LIB_SPEC "%{m68881:%{!p:%{!pg:-lmc}}%{p:-lmc_p}%{pg:-lmc_p}} \
032b92e5 RS	49	%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} %{g:-lg}"
047292d2 RS	50	#endif
	51
	52	/* Names to predefine in the preprocessor for this target machine. */
	53
65c42379	54	#define CPP_PREDEFINES "-Dunix -Dmc68000 -Dis68k -Asystem(unix) -Asystem(bsd) -Acpu(m68k) -Amachine(m68k)"
047292d2 RS	55
	56	/* This is BSD, so it wants DBX format. */
	57
	58	#define DBX_DEBUGGING_INFO
	59
	60	/* Override parts of m68k.h to fit the ISI 68k machine. */
	61
	62	#undef FUNCTION_VALUE
	63	#undef LIBCALL_VALUE
	64	#undef FUNCTION_VALUE_REGNO_P
7972af82	65	#undef NEEDS_UNTYPED_CALL
047292d2 RS	66	#undef ASM_FILE_START
047292d2 RS	67
118149af RS	68	/* Every structure or union's size must be a multiple of 2 bytes. */
	69
	70	#define STRUCTURE_SIZE_BOUNDARY 16
	71
047292d2 RS	72	/* If TARGET_68881, return SF and DF values in f0 instead of d0. */
	73
	74	#define FUNCTION_VALUE(VALTYPE,FUNC) LIBCALL_VALUE (TYPE_MODE (VALTYPE))
	75
	76	#define LIBCALL_VALUE(MODE) \
c5c76735	77	gen_rtx_REG ((MODE), ((TARGET_68881 && ((MODE) == SFmode \|\| (MODE) == DFmode)) ? 16 : 0))
047292d2 RS	78
	79	/* 1 if N is a possible register number for a function value.
	80	D0 may be used, and F0 as well if -m68881 is specified. */
	81
	82	#define FUNCTION_VALUE_REGNO_P(N) \
	83	((N) == 0 \|\| (TARGET_68881 && (N) == 16))
	84
7972af82 TW	85	/* Define this to be true when FUNCTION_VALUE_REGNO_P is true for
	86	more than one register. */
	87
	88	#define NEEDS_UNTYPED_CALL 1
	89
047292d2 RS	90	/* Also output something to cause the correct _doprnt to be loaded. */
047292d2 RS	91	#define ASM_FILE_START(FILE) fprintf (FILE, "#NO_APP\n%s\n", TARGET_68881 ? ".globl fltused" : "")