/* Definitions of target machine for GNU compiler. Apollo 680X0 version.
- Copyright (C) 1989 Free Software Foundation, Inc.
+ Copyright (C) 1989,1992 Free Software Foundation, Inc.
This file is part of GNU CC.
#define DOLLARS_IN_IDENTIFIERS 2
-/* -m68000 requires special flags to the assembler.
- The -C flag is passed to a modified GNU assembler to cause COFF
- modules to be produced. Remove it if you're not using this.
- (See vasta@apollo.com.) */
+/* -m68000 requires special flags to the assembler. */
#define ASM_SPEC \
- "-C %{m68000:-mc68010}%{mc68000:-mc68010}%{!mc68000:%{!m68000:-mc68020}}"
+ "%{m68000:-mc68010}%{mc68000:-mc68010}%{!mc68000:%{!m68000:-mc68020}}"
/* STARTFILE_SPEC
Note that includes knowledge of the default specs for gcc, ie. no
#undef DBX_DEBUGGING_INFO
#undef SDB_DEBUGGING_INFO
+/* We have atexit(2). So C++ can use it for global destructors. */
+
+#define HAVE_ATEXIT
+
/* Every structure or union's size must be a multiple of 2 bytes. */
#define STRUCTURE_SIZE_BOUNDARY 16
+/* Boundary (in *bits*) on which stack pointer should be aligned. */
+#undef STACK_BOUNDARY
+#define STACK_BOUNDARY 32
+
/* Functions which return large structures get the address
- to place the wanted value at offset 8 from the frame. */
+ to place the wanted value from a hidden parameter. */
#undef PCC_STATIC_STRUCT_RETURN
#undef STRUCT_VALUE_REGNUM
-
-/* Caller treats address of return area like a parm. */
#define STRUCT_VALUE 0
-
-#define STRUCT_VALUE_INCOMING \
- gen_rtx (MEM, Pmode, \
- gen_rtx (PLUS, SImode, frame_pointer_rtx, \
- gen_rtx (CONST_INT, VOIDmode, 8)))
-
-/* Boundary (in *bits*) on which stack pointer should be aligned. */
-#undef STACK_BOUNDARY
-#define STACK_BOUNDARY 32
+#define STRUCT_VALUE_INCOMING 0
/* Specify how to pad function arguments.
Arguments are not padded at all; the stack is kept aligned on long
#define FUNCTION_ARG_PADDING(mode, size) none
-/* Short integral argument prototype promotion is not done */
-
-#undef PROMOTE_PROTOTYPES
-
/* The definition of this macro imposes a limit on the size of
an aggregate object which can be treated as if it were a scalar
- object. */
+ object. */
#define MAX_FIXED_MODE_SIZE BITS_PER_WORD
#define RETURN_IN_MEMORY(type) \
(GET_MODE_SIZE (TYPE_MODE (type)) > UNITS_PER_WORD)
-/* This is how to output a reference to a user-level label named NAME.
- In order to link to Apollo libraries, no underscore is prepended to names.
- `assemble_name' uses this. */
+/* In order to link with Apollo libraries, we can't prefix external
+ symbols with an underscore. */
+
+#undef USER_LABEL_PREFIX
+
+/* Use a prefix for local labels, just to be on the save side. */
+
+#undef LOCAL_LABEL_PREFIX
+#define LOCAL_LABEL_PREFIX "."
+
+/* Use a register prefix to avoid clashes with external symbols (classic
+ example: `extern char PC;' in termcap). */
+
+#undef REGISTER_PREFIX
+#define REGISTER_PREFIX "%"
+
+/* In the machine description we can't use %R, because it will not be seen
+ by ASM_FPRINTF. (Isn't that a design bug?). */
+
+#undef REGISTER_PREFIX_MD
+#define REGISTER_PREFIX_MD "%%"
+
+/* config/m68k.md has an explicit reference to the program counter,
+ prefix this by the register prefix. */
+
+#define ASM_RETURN_CASE_JUMP return "jmp %%pc@(2,%0:w)"
-#undef ASM_OUTPUT_LABELREF
-#define ASM_OUTPUT_LABELREF(FILE,NAME) \
- fprintf (FILE, "%s", NAME)
+/* Here are the new register names. */
+#undef REGISTER_NAMES
+#ifndef SUPPORT_SUN_FPA
+#define REGISTER_NAMES \
+{"%d0", "%d1", "%d2", "%d3", "%d4", "%d5", "%d6", "%d7", \
+ "%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%a6", "%sp", \
+ "%fp0", "%fp1", "%fp2", "%fp3", "%fp4", "%fp5", "%fp6", "%fp7" }
+#else /* SUPPORTED_SUN_FPA */
+#define REGISTER_NAMES \
+{"%d0", "%d1", "%d2", "%d3", "%d4", "%d5", "%d6", "%d7", \
+ "%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%a6", "%sp", \
+ "%fp0", "%fp1", "%fp2", "%fp3", "%fp4", "%fp5", "%fp6", "%fp7", \
+ "%fpa0", "%fpa1", "%fpa2", "%fpa3", "%fpa4", "%fpa5", "%fpa6", "%fpa7", \
+ "%fpa8", "%fpa9", "%fpa10", "%fpa11", "%fpa12", "%fpa13", "%fpa14", "%fpa15", \
+ "%fpa16", "%fpa17", "%fpa18", "%fpa19", "%fpa20", "%fpa21", "%fpa22", "%fpa23", \
+ "%fpa24", "%fpa25", "%fpa26", "%fpa27", "%fpa28", "%fpa29", "%fpa30", "%fpa31" }
+#endif /* defined SUPPORT_SUN_FPA */