You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Generic 68000 stuff, to be included by other tm-*.h files. */
to reach some "real" code. */
#if !defined(SKIP_PROLOGUE)
-#define SKIP_PROLOGUE(ip) {(ip) = m68k_skip_prologue(ip);}
-extern CORE_ADDR m68k_skip_prologue PARAMS ((CORE_ADDR ip));
+#define SKIP_PROLOGUE(ip) (m68k_skip_prologue (ip))
#endif
+extern CORE_ADDR m68k_skip_prologue PARAMS ((CORE_ADDR ip));
/* Immediately after a function call, return the saved pc.
Can't always go through the frames for this because on some machines
#ifdef __STDC__
struct frame_info;
+struct frame_saved_regs;
#endif
extern CORE_ADDR m68k_saved_pc_after_call PARAMS ((struct frame_info *));
+extern void m68k_find_saved_regs PARAMS ((struct frame_info *, struct frame_saved_regs *));
#define SAVED_PC_AFTER_CALL(frame) \
m68k_saved_pc_after_call(frame)
/* Stack grows downward. */
-#define INNER_THAN <
+#define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
+
+/* Stack must be kept short aligned when doing function calls. */
+
+#define STACK_ALIGN(ADDR) (((ADDR) + 1) & ~1)
/* Sequence of bytes for breakpoint instruction.
This is a TRAP instruction. The last 4 bits (0xf below) is the
#define DECR_PC_AFTER_BREAK 2
#endif
-/* Nonzero if instruction at PC is a return instruction. */
-/* Allow any of the return instructions, including a trapv and a return
- from interupt. */
-
-#define ABOUT_TO_RETURN(pc) ((read_memory_integer (pc, 2) & ~0x3) == 0x4e74)
-
/* Say how long (ordinary) registers are. This is a piece of bogosity
used in push_word and a few other places; REGISTER_RAW_SIZE is the
real way to know how big a register is. */
#define NUM_REGS 29
#endif
+#define NUM_FREGS (NUM_REGS-24)
+
#ifndef REGISTER_BYTES_OK
#define REGISTER_BYTES_OK(b) \
((b) == REGISTER_BYTES_FP \
to virtual format with type TYPE in buffer TO. */
#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \
-{ \
- double val; \
- floatformat_to_double (&floatformat_m68881_ext, (FROM), &val); \
- store_floating ((TO), TYPE_LENGTH (TYPE), val); \
-}
+do \
+ { \
+ DOUBLEST dbl_tmp_val; \
+ floatformat_to_doublest (&floatformat_m68881_ext, (FROM), &dbl_tmp_val); \
+ store_floating ((TO), TYPE_LENGTH (TYPE), dbl_tmp_val); \
+ } while (0)
/* Convert data from virtual format with type TYPE in buffer FROM
to raw format for register REGNUM in buffer TO. */
#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \
-{ \
- double val = extract_floating ((FROM), TYPE_LENGTH (TYPE)); \
- floatformat_from_double (&floatformat_m68881_ext, &val, (TO)); \
-}
-
-/* Return the GDB type object for the "standard" data type
- of data in register N. */
-/* Note, for registers which contain addresses return
- pointer to void, not pointer to char, because we don't
- want to attempt to print the string after printing the address. */
+do \
+ { \
+ DOUBLEST dbl_tmp_val; \
+ dbl_tmp_val = extract_floating ((FROM), TYPE_LENGTH (TYPE)); \
+ floatformat_from_doublest (&floatformat_m68881_ext, &dbl_tmp_val, (TO)); \
+ } while (0)
+
+/* Return the GDB type object for the "standard" data type of data
+ in register N. This should be int for D0-D7, double for FP0-FP7,
+ and void pointer for all others (A0-A7, PC, SR, FPCONTROL etc).
+ Note, for registers which contain addresses return pointer to void,
+ not pointer to char, because we don't want to attempt to print
+ the string after printing the address. */
+
#define REGISTER_VIRTUAL_TYPE(N) \
- (((unsigned)(N) - FP0_REGNUM) < 8 ? builtin_type_double : \
- (N) == PC_REGNUM || (N) == FP_REGNUM || (N) == SP_REGNUM ? \
- lookup_pointer_type (builtin_type_void) : builtin_type_int)
+ ((unsigned) (N) >= FPC_REGNUM ? lookup_pointer_type (builtin_type_void) : \
+ (unsigned) (N) >= FP0_REGNUM ? builtin_type_double : \
+ (unsigned) (N) >= A0_REGNUM ? lookup_pointer_type (builtin_type_void) : \
+ builtin_type_int)
/* Initializer for an array of names of registers.
Entries beyond the first NUM_REGS are ignored. */
to be actual register numbers as far as the user is concerned
but do serve to get the desired values when passed to read_register. */
+#define D0_REGNUM 0
+#define A0_REGNUM 8
#define A1_REGNUM 9
#define FP_REGNUM 14 /* Contains address of executing stack frame */
#define SP_REGNUM 15 /* Contains address of top of stack */
/* Offset from SP to first arg on stack at first instruction of a function */
#define SP_ARG0 (1 * 4)
+
+#define TARGET_M68K
projects / deliverable / binutils-gdb.git / blobdiff