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- /* Definitions of target machine for GNU compiler. "embedded" 68XXX.
- This is meant to be included after m68k.h.
- Copyright (C) 1994, 1995 Free Software Foundation, Inc. */
-
- #define PTRDIFF_TYPE "long int"
- #define SIZE_TYPE "long unsigned int"
-
- /* In order for bitfields to work on a 68000, or with -mnobitfield, we must
- define either PCC_BITFIELD_TYPE_MATTERS or STRUCTURE_SIZE_BOUNDARY.
- Defining STRUCTURE_SIZE_BOUNDARY results in structure packing problems,
- so we define PCC_BITFIELD_TYPE_MATTERS. */
- #define PCC_BITFIELD_TYPE_MATTERS 1
-
- /* Undef PCC_STATIC_STRUCT_RETURN so that we get a re-entrant calling
- convention. */
- #undef PCC_STATIC_STRUCT_RETURN
-
- /* Don't default to pcc-struct-return, so that we can return small structures
- and unions in registers, which is slightly more efficient. */
- #define DEFAULT_PCC_STRUCT_RETURN 0
-
- /* Return floating point values in a fp register. This make fp code a
- little bit faster. It also makes -msoft-float code incompatible with
- -m68881 code, so people have to be careful not to mix the two. */
- #undef FUNCTION_VALUE
- #define FUNCTION_VALUE(VALTYPE,FUNC) LIBCALL_VALUE (TYPE_MODE (VALTYPE))
-
- #undef LIBCALL_VALUE
- #define LIBCALL_VALUE(MODE) \
- gen_rtx (REG, (MODE), \
- ((TARGET_68881 \
- && ((MODE) == SFmode || (MODE) == DFmode || (MODE) == XFmode)) \
- ? 16 : 0))
-
- #undef FUNCTION_VALUE_REGNO_P
- #define FUNCTION_VALUE_REGNO_P(N) ((N) == 0 || (TARGET_68881 && (N) == 16))
-
- #undef NEEDS_UNTYPED_CALL
- #define NEEDS_UNTYPED_CALL 1
-
- /* crt0.o should be specified in the linker script. */
- #undef STARTFILE_SPEC
- #define STARTFILE_SPEC ""
-