projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 5f0a312d | 1 | /* Definitions for Motorola 680x0 running LynxOS. |
| c5c76735 | 2 | Copyright (C) 1993, 94, 95, 96, 98, 1999 Free Software Foundation, Inc. |
| 3151d2aa JW |
3 | |
| 4 | This file is part of GNU CC. | |
| 5 | ||
| 6 | GNU CC is free software; you can redistribute it and/or modify | |
| 7 | it under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 2, or (at your option) | |
| 9 | any later version. | |
| 10 | ||
| 11 | GNU CC is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | GNU General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU General Public License | |
| 17 | along with GNU CC; see the file COPYING. If not, write to | |
| 0e29e3c9 RK |
18 | the Free Software Foundation, 59 Temple Place - Suite 330, |
| 19 | Boston, MA 02111-1307, USA. */ | |
| 3151d2aa | 20 | |
| f17dfa93 RK |
21 | #include <m68k/m68k.h> |
| 22 | #include <m68k/coff.h> | |
| 5f0a312d RS |
23 | |
| 24 | #undef CTORS_SECTION_ASM_OP | |
| 25 | #undef DTORS_SECTION_ASM_OP | |
| 26 | #undef ASM_OUTPUT_DESTRUCTOR | |
| 27 | #undef SELECT_RTX_SECTION | |
| 28 | ||
| 29 | #define BSS_SECTION_ASM_OP ".bss" | |
| 30 | ||
| 31 | #define ASM_LONG ".long" | |
| 32 | ||
| f17dfa93 | 33 | #include <lynx.h> |
| 3151d2aa JW |
34 | |
| 35 | /* See m68k.h. 7 means 68020 with 68881. */ | |
| 36 | ||
| 37 | #ifndef TARGET_DEFAULT | |
| 9811059c | 38 | #define TARGET_DEFAULT (MASK_BITFIELD|MASK_68881|MASK_68020) |
| 3151d2aa JW |
39 | #endif |
| 40 | ||
| 41 | /* Names to predefine in the preprocessor for this target machine. */ | |
| 5f0a312d | 42 | |
| 3151d2aa | 43 | #undef CPP_PREDEFINES |
| 5f0a312d | 44 | #define CPP_PREDEFINES "-Dunix -Dmc68000 -DM68K -DLynx -DIBITS32 -Asystem(unix) -Asystem(lynx) -Acpu(m68k) -Amachine(m68k)" |
| 3151d2aa JW |
45 | |
| 46 | /* Every structure or union's size must be a multiple of 2 bytes. */ | |
| 47 | ||
| 48 | #define STRUCTURE_SIZE_BOUNDARY 16 | |
| 8d60a67d RK |
49 | |
| 50 | /* Lynx uses d2 and d3 as scratch registers. */ | |
| 51 | #undef CALL_USED_REGISTERS | |
| 52 | #define CALL_USED_REGISTERS \ | |
| 53 | {1, 1, 1, 1, 0, 0, 0, 0, \ | |
| 54 | 1, 1, 0, 0, 0, 0, 0, 1, \ | |
| 55 | 1, 1, 0, 0, 0, 0, 0, 0 } | |
| 51600f3d DE |
56 | |
| 57 | /* Return floating point values in a fp register. This make fp code a | |
| 58 | little bit faster. It also makes -msoft-float code incompatible with | |
| 59 | -m68881 code, so people have to be careful not to mix the two. */ | |
| 60 | #undef FUNCTION_VALUE | |
| 61 | #define FUNCTION_VALUE(VALTYPE,FUNC) LIBCALL_VALUE (TYPE_MODE (VALTYPE)) | |
| 62 | ||
| 63 | #undef LIBCALL_VALUE | |
| 64 | #define LIBCALL_VALUE(MODE) \ | |
| c5c76735 JL |
65 | gen_rtx_REG ((MODE), \ |
| 66 | ((TARGET_68881 \ | |
| 67 | && ((MODE) == SFmode || (MODE) == DFmode \ | |
| 68 | || (MODE) == XFmode)) \ | |
| 51600f3d DE |
69 | ? 16 : 0)) |
| 70 | ||
| 71 | #undef FUNCTION_VALUE_REGNO_P | |
| 72 | #define FUNCTION_VALUE_REGNO_P(N) ((N) == 0 || (TARGET_68881 && (N) == 16)) | |
| 73 | ||
| 74 | #undef NEEDS_UNTYPED_CALL | |
| 75 | #define NEEDS_UNTYPED_CALL 1 |