along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+/* The mn10200 is little endian. */
#define TARGET_BYTE_ORDER LITTLE_ENDIAN
-/* 24 bit registers but we'll pretend that they are 32 bits */
+/* ints are only 16bits on the mn10200. */
+#undef TARGET_INT_BIT
+#define TARGET_INT_BIT 16
+
+/* The mn10200 doesn't support long long types. */
+#undef TARGET_LONG_LONG_BIT
+#define TARGET_LONG_LONG_BIT 32
+
+/* The mn10200 doesn't support double or long double either. */
+#undef TARGET_DOUBLE_BIT
+#undef TARGET_LONG_DOUBLE_BIT
+#define TARGET_DOUBLE_BIT 32
+#define TARGET_LONG_DOUBLE_BIT 32
+
+/* Not strictly correct, but the machine independent code is not
+ ready to handle any of the basic sizes not being a power of two. */
+#undef TARGET_PTR_BIT
+#define TARGET_PTR_BIT 32
+
+/* The mn10200 really has 24 bit registers but the simulator reads/writes
+ them as 32bit values, so we claim they're 32bits each. This may have
+ to be tweaked if the Matsushita emulator/board really deals with them
+ as 24bits each. */
#define REGISTER_SIZE 4
#define MAX_REGISTER_RAW_SIZE REGISTER_SIZE
#define MDR_REGNUM 9
#define PSW_REGNUM 10
-#define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
+/* Treat the registers as 32bit values. */
+#define REGISTER_VIRTUAL_TYPE(REG) builtin_type_long
#define REGISTER_BYTE(REG) ((REG) * REGISTER_SIZE)
#define REGISTER_VIRTUAL_SIZE(REG) REGISTER_SIZE
#define MAX_REGISTER_VIRTUAL_SIZE REGISTER_SIZE
+/* The breakpoint instruction must be the same size as te smallest
+ instruction in the instruction set.
+
+ The Matsushita mn10x00 processors have single byte instructions
+ so we need a single byte breakpoint. Matsushita hasn't defined
+ one, so we defined it ourselves.
+
+ 0xff is the only available single byte insn left on the mn10200. */
#define BREAKPOINT {0xff}
#define FUNCTION_START_OFFSET 0
#define DECR_PC_AFTER_BREAK 0
-#define INNER_THAN <
+/* Stacks grow the normal way. */
+#define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
#define SAVED_PC_AFTER_CALL(frame) \
- read_memory_integer (read_register (SP_REGNUM), REGISTER_SIZE)
+ (read_memory_integer (read_register (SP_REGNUM), REGISTER_SIZE) & 0xffffff)
#ifdef __STDC__
struct frame_info;
struct value;
#endif
-#define EXTRA_FRAME_INFO struct frame_saved_regs fsr;
+#define EXTRA_FRAME_INFO struct frame_saved_regs fsr; int status; int stack_size;
-extern void mn10200_init_extra_frame_info PARAMS ((struct frame_info *fi));
+extern void mn10200_init_extra_frame_info PARAMS ((struct frame_info *));
#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) mn10200_init_extra_frame_info (fi)
-#define INIT_FRAME_PC /* Not necessary */
+#define INIT_FRAME_PC(x,y)
-extern void mn10200_frame_find_saved_regs PARAMS ((struct frame_info *fi, struct frame_saved_regs *regaddr));
+extern void mn10200_frame_find_saved_regs PARAMS ((struct frame_info *,
+ struct frame_saved_regs *));
#define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
-extern CORE_ADDR mn10200_frame_chain PARAMS ((struct frame_info *fi));
+extern CORE_ADDR mn10200_frame_chain PARAMS ((struct frame_info *));
#define FRAME_CHAIN(fi) mn10200_frame_chain (fi)
#define FRAME_CHAIN_VALID(FP, FI) generic_frame_chain_valid (FP, FI)
-extern CORE_ADDR mn10200_find_callers_reg PARAMS ((struct frame_info *fi, int regnum));
+extern CORE_ADDR mn10200_find_callers_reg PARAMS ((struct frame_info *, int));
extern CORE_ADDR mn10200_frame_saved_pc PARAMS ((struct frame_info *));
#define FRAME_SAVED_PC(FI) (mn10200_frame_saved_pc (FI))
/* Extract from an array REGBUF containing the (raw) register state
a function return value of type TYPE, and copy that, in virtual format,
- into VALBUF. */
+ into VALBUF. */
#define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
- memcpy (VALBUF, REGBUF + REGISTER_BYTE (0), TYPE_LENGTH (TYPE))
+ { \
+ if (TYPE_LENGTH (TYPE) > 8) \
+ abort (); \
+ else if (TYPE_LENGTH (TYPE) > 2 && TYPE_CODE (TYPE) != TYPE_CODE_PTR) \
+ { \
+ memcpy (VALBUF, REGBUF + REGISTER_BYTE (0), 2); \
+ memcpy (VALBUF + 2, REGBUF + REGISTER_BYTE (1), 2); \
+ } \
+ else if (TYPE_CODE (TYPE) == TYPE_CODE_PTR)\
+ { \
+ memcpy (VALBUF, REGBUF + REGISTER_BYTE (4), TYPE_LENGTH (TYPE)); \
+ } \
+ else \
+ { \
+ memcpy (VALBUF, REGBUF + REGISTER_BYTE (0), TYPE_LENGTH (TYPE)); \
+ } \
+ }
#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
- extract_address (REGBUF + REGISTER_BYTE (0), \
- REGISTER_RAW_SIZE (0))
+ extract_address (REGBUF + REGISTER_BYTE (4), \
+ REGISTER_RAW_SIZE (4))
#define STORE_RETURN_VALUE(TYPE, VALBUF) \
- write_register_bytes(REGISTER_BYTE (0), VALBUF, TYPE_LENGTH (TYPE));
-
-extern CORE_ADDR mn10200_skip_prologue PARAMS ((CORE_ADDR pc));
+ { \
+ if (TYPE_LENGTH (TYPE) > 8) \
+ abort (); \
+ else if (TYPE_LENGTH (TYPE) > 2 && TYPE_CODE (TYPE) != TYPE_CODE_PTR) \
+ { \
+ write_register_bytes (REGISTER_BYTE (0), VALBUF, 2); \
+ write_register_bytes (REGISTER_BYTE (1), VALBUF + 2, 2); \
+ } \
+ else if (TYPE_CODE (TYPE) == TYPE_CODE_PTR)\
+ { \
+ write_register_bytes (REGISTER_BYTE (4), VALBUF, TYPE_LENGTH (TYPE)); \
+ } \
+ else \
+ { \
+ write_register_bytes (REGISTER_BYTE (0), VALBUF, TYPE_LENGTH (TYPE)); \
+ } \
+ }
+
+#define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) \
+ (SP) = mn10200_store_struct_return (STRUCT_ADDR, SP)
+
+extern CORE_ADDR mn10200_skip_prologue PARAMS ((CORE_ADDR));
#define SKIP_PROLOGUE(pc) pc = mn10200_skip_prologue (pc)
#define FRAME_ARGS_SKIP 0
#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
#define FRAME_NUM_ARGS(val, fi) ((val) = -1)
-extern void mn10200_pop_frame PARAMS ((struct frame_info *frame));
+extern void mn10200_pop_frame PARAMS ((struct frame_info *));
#define POP_FRAME mn10200_pop_frame (get_current_frame ())
#define USE_GENERIC_DUMMY_FRAMES
#define CALL_DUMMY {0}
-#undef CALL_DUMMY /* for now, no function calls */
#define CALL_DUMMY_START_OFFSET (0)
#define CALL_DUMMY_BREAKPOINT_OFFSET (0)
#define CALL_DUMMY_LOCATION AT_ENTRY_POINT
#define PUSH_DUMMY_FRAME generic_push_dummy_frame ()
extern CORE_ADDR
-mn10200_push_arguments PARAMS ((int nargs, struct value **args, CORE_ADDR sp,
- unsigned char struct_return,
- CORE_ADDR struct_addr));
+mn10200_push_arguments PARAMS ((int, struct value **, CORE_ADDR,
+ unsigned char, CORE_ADDR));
#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
(SP) = mn10200_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
-#define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)
-
#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP)
-#define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
- (TYPE_NFIELDS (TYPE) > 1 || TYPE_LENGTH (TYPE) > 4)
+#define REG_STRUCT_HAS_ADDR(gcc_p,TYPE) \
+ (TYPE_LENGTH (TYPE) > 8)
+
+extern use_struct_convention_fn mn10200_use_struct_convention;
+#define USE_STRUCT_CONVENTION(GCC_P, TYPE) mn10200_use_struct_convention (GCC_P, TYPE)
-/* override the default get_saved_register function with
- one that takes account of generic CALL_DUMMY frames */
+/* Override the default get_saved_register function with
+ one that takes account of generic CALL_DUMMY frames. */
#define GET_SAVED_REGISTER
/* Define this for Wingdb */
-
#define TARGET_MN10200
projects / thirdparty / binutils-gdb.git / blobdiff