Checkpoint for Stu

1 files changed, 293 insertions, 0 deletions

diff --git a/gdb/tm-h8500.h b/gdb/tm-h8500.h
new file mode 100644
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--- /dev/null
+++ b/gdb/tm-h8500.h
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+/* Parameters for execution on a H8/500 series machine.
+   Copyright (C) 1993 Free Software Foundation, Inc.
+
+This file is part of GDB.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+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.  */
+
+/* Contributed by Steve Chamberlain sac@cygnus.com */
+
+
+
+#define IEEE_FLOAT 1
+
+/* Define the bit, byte, and word ordering of the machine.  */
+
+#define TARGET_BYTE_ORDER BIG_ENDIAN
+
+#undef TARGET_INT_BIT
+#define TARGET_INT_BIT 16
+
+#undef TARGET_PTR_BIT
+#define TARGET_PTR_BIT (minimum_mode ? 16 : 32)
+
+
+/* Offset from address of function to start of its code.
+   Zero on most machines.  */
+
+#define FUNCTION_START_OFFSET 0
+
+/* Advance PC across any function entry prologue instructions
+   to reach some "real" code.  */
+
+#define SKIP_PROLOGUE(ip)   {(ip) = h8500_skip_prologue(ip);}
+extern CORE_ADDR h8500_skip_prologue ();
+
+
+/* Immediately after a function call, return the saved pc.
+   Can't always go through the frames for this because on some machines
+   the new frame is not set up until the new function executes
+   some instructions.  */
+
+#define SAVED_PC_AFTER_CALL(frame) saved_pc_after_call(frame)
+
+
+/* Stack grows downward.  */
+
+#define INNER_THAN <
+
+/* Illegal instruction - used by the simulator for breakpoint
+   detection */
+#define BREAKPOINT {0x0b}
+
+
+/* If your kernel resets the pc after the trap happens you may need to
+   define this before including this file.  */
+
+#define DECR_PC_AFTER_BREAK 0
+
+
+/* Nonzero if instruction at PC is a return instruction.  */
+
+#define ABOUT_TO_RETURN(pc) about_to_return(pc)
+
+/* Return 1 if P points to an invalid floating point value.  */
+
+#define INVALID_FLOAT(p, len) 0   /* Just a first guess; not checked */
+
+/* Say how long registers are.  */
+
+#define REGISTER_TYPE  unsigned long
+
+/* Say how much memory is needed to store a copy of the register set */
+
+#define REGISTER_BYTES    ((NUM_REGS)*4) 
+
+/* Index within `registers' of the first byte of the space for
+   register N.  */
+
+#define REGISTER_BYTE(N)  ((N)*4)
+
+/* Number of bytes of storage in the actual machine representation
+   for register N.  */
+
+#define REGISTER_RAW_SIZE(N)  register_raw_size(N)
+
+#define REGISTER_VIRTUAL_SIZE(N) register_virtual_size(N)
+
+/* Largest value REGISTER_RAW_SIZE can have.  */
+
+#define MAX_REGISTER_RAW_SIZE 4
+
+/* Largest value REGISTER_VIRTUAL_SIZE can have.  */
+
+#define MAX_REGISTER_VIRTUAL_SIZE 4
+
+/* Nonzero if register N requires conversion
+   from raw format to virtual format.  */
+
+#define REGISTER_CONVERTIBLE(N) 1
+
+/* Convert data from raw format for register REGNUM
+   to virtual format for register REGNUM.  */
+
+#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO)  \
+     register_convert_to_virtual(REGNUM, FROM, TO)
+
+/* Convert data from virtual format for register REGNUM
+   to raw format for register REGNUM.  */
+
+#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO)   \
+   register_convert_to_raw(REGNUM, FROM, TO)
+
+/* Return the GDB type object for the "standard" data type
+   of data in register N.  */
+struct type *register_virtual_type();
+
+#define REGISTER_VIRTUAL_TYPE(N) register_virtual_type(N)
+
+
+/* Initializer for an array of names of registers.
+   Entries beyond the first NUM_REGS are ignored.  */
+
+#define REGISTER_NAMES \
+  {"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
+   "pr0", "pr1","pr2","pr3","pr4","pr5","pr6","pr7", \
+   "ccr","pc", \
+    "cp","dp","ep","tp" }
+
+/* Register numbers of various important registers.
+   Note that some of these values are "real" register numbers,
+   and correspond to the general registers of the machine,
+   and some are "phony" register numbers which are too large
+   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 R0  		0
+#define R1  		1
+#define R2  		2
+#define R3  		3
+#define R4  		4
+#define R5  		5
+#define R6  		6
+#define R7  		7
+
+#define PR0  		8      /* R0-R7 with seg prefixed */
+#define PR1  		9
+#define PR2  		10
+#define PR3  		11
+#define PR4  		12
+#define PR5  		13
+#define PR6  		14
+#define PR7  		15
+
+#define SP_REGNUM       PR7	/* Contains address of top of stack */
+#define FP_REGNUM       PR6	/* Contains address of executing stack frame */
+
+#define CCR_REGNUM      16	/* Contains processor status */
+#define PC_REGNUM       17	/* Contains program counter */
+
+#define SEG_C  		18	/* Segment registers */
+#define SEG_D  		19
+#define SEG_E  		20
+#define SEG_T  		21
+
+#define NUM_REGS 	22
+
+#define PTR_SIZE (minimum_mode ? 2: 4)
+#define PTR_MASK (minimum_mode ? 0x0000ffff : 0x00ffffff)
+
+/* Store the address of the place in which to copy the structure the
+   subroutine will return.  This is called from call_function. */
+
+/*#define STORE_STRUCT_RETURN(ADDR, SP) \
+  { write_register (0, (ADDR)); abort(); }*/
+
+/* 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.  */
+
+#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
+  bcopy ((char *)(REGBUF), VALBUF, TYPE_LENGTH(TYPE))
+
+
+/* Write into appropriate registers a function return value
+   of type TYPE, given in virtual format.  Assumes floats are passed
+   in d0/d1.  */
+
+
+#define STORE_RETURN_VALUE(TYPE,VALBUF) \
+  write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE))
+
+
+/* Extract from an array REGBUF containing the (raw) register state
+   the address in which a function should return its structure value,
+   as a CORE_ADDR (or an expression that can be used as one).  */
+
+#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (*(CORE_ADDR *)(REGBUF))
+
+
+/* Define other aspects of the stack frame.  */
+
+/* A macro that tells us whether the function invocation represented
+   by FI does not have a frame on the stack associated with it.  If it
+   does not, FRAMELESS is set to 1, else 0.  */
+#define FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) \
+  (FRAMELESS) = frameless_look_for_prologue(FI)
+
+/* Any function with a frame looks like this
+   SECOND ARG
+   FIRST ARG
+   RET PC
+   SAVED R2
+   SAVED R3
+   SAVED FP   <-FP POINTS HERE
+   LOCALS0
+   LOCALS1    <-SP POINTS HERE
+   
+   */
+#define FRAME_SAVED_PC(FRAME) frame_saved_pc(FRAME)
+
+#define FRAME_ARGS_ADDRESS(fi) frame_args_address(fi)
+
+#define FRAME_LOCALS_ADDRESS(fi) frame_locals_address(fi);
+
+/* Set VAL to the number of args passed to frame described by FI.
+   Can set VAL to -1, meaning no way to tell.  */
+
+/* We can't tell how many args there are
+   now that the C compiler delays popping them.  */
+
+#define FRAME_NUM_ARGS(val,fi) (val = -1)
+
+/* Return number of bytes at start of arglist that are not really args.  */
+
+#define FRAME_ARGS_SKIP 0
+
+/* Put here the code to store, into a struct frame_saved_regs,
+   the addresses of the saved registers of frame described by FRAME_INFO.
+   This includes special registers such as pc and fp saved in special
+   ways in the stack frame.  sp is even more special:
+   the address we return for it IS the sp for the next frame.  */
+
+#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs)	    \
+   frame_find_saved_regs(frame_info, &(frame_saved_regs))
+
+
+/* Push an empty stack frame, to record the current PC, etc.  */
+
+/*#define PUSH_DUMMY_FRAME	{ h8300_push_dummy_frame (); }*/
+
+/* Discard from the stack the innermost frame, restoring all registers.  */
+
+#define POP_FRAME		{ h8300_pop_frame (); }
+
+#define SHORT_INT_MAX 32767
+#define SHORT_INT_MIN -32768
+
+
+
+#define	BEFORE_MAIN_LOOP_HOOK	\
+  hms_before_main_loop();
+
+
+#define NAMES_HAVE_UNDERSCORE
+
+typedef unsigned short INSN_WORD;
+
+#define ADDR_BITS_REMOVE(addr) ((addr) & 0xffffff)
+#define ADDR_BITS_SET(addr) (((addr)))
+
+#define read_memory_short(x)  (read_memory_integer(x,2) & 0xffff)
+#define DONT_USE_REMOTE
+
+
+#define	PRINT_REGISTER_HOOK(regno) print_register_hook(regno)
+
+
+int minimum_mode;
+
+#define CALL_DUMMY_LENGTH 10