home *** CD-ROM | disk | FTP | other *** search
- /* 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 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. */
-
- #include "tm-m68k.h"
-
- /* See tm-m68k.h. 7 means 68020 with 68881. */
-
- #define TARGET_DEFAULT 7
-
- /* Define __HAVE_FPU__ 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_FPU__}"
-
- /* If the 68881 is used, link must load libmc.a instead of libc.a */
-
- #define LIB_SPEC "%{msoft-float:%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}%{!msoft-float:%{!p:%{!pg:-lmc}}%{p:-lmc_p}%{pg:-lmc_p}}"
-
- /* Names to predefine in the preprocessor for this target machine. */
-
- #define CPP_PREDEFINES "-Dunix -Dmc68000 -Dis68k"
-
- /* This is BSD, so it wants DBX format. */
-
- #define DBX_DEBUGGING_INFO
-
- /* Override parts of tm-m68000.h to fit the ISI 68k machine. */
-
- #undef FUNCTION_VALUE
- #undef LIBCALL_VALUE
- #undef FUNCTION_VALUE_REGNO_P
- #undef ASM_FILE_START
-
- /* 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))
-
- /* Also output something to cause the correct _doprnt to be loaded. */
- #define ASM_FILE_START(FILE) fprintf (FILE, "#NO_APP\n.globl fltused\n")
-