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Diffstat (limited to 'gdb/tm-h8300.h')
| -rw-r--r-- | gdb/tm-h8300.h | 305 |
1 files changed, 0 insertions, 305 deletions
diff --git a/gdb/tm-h8300.h b/gdb/tm-h8300.h index a583ecc..e69de29 100644 --- a/gdb/tm-h8300.h +++ b/gdb/tm-h8300.h @@ -1,305 +0,0 @@ -/* Parameters for execution on a H8/300 series machine. - Copyright 1992, 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 UNSIGNED_SHORT(X) ((X) & 0xffff) - - -#define EXTRA_FRAME_INFO \ - struct frame_saved_regs *fsr; \ - CORE_ADDR from_pc; \ - CORE_ADDR args_pointer;\ - CORE_ADDR locals_pointer ; - - - -/* Zero the frame_saved_regs pointer when the frame is initialized, - so that FRAME_FIND_SAVED_REGS () will know to allocate and - initialize a frame_saved_regs struct the first time it is called. - Set the arg_pointer to -1, which is not valid; 0 and other values - indicate real, cached values. */ - -#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \ - init_extra_frame_info (fromleaf, fi) - -extern void init_extra_frame_info (); - - -#define IEEE_FLOAT -/* 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 16 - - -/* 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) = h8300_skip_prologue(ip);} -extern CORE_ADDR h8300_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) \ -UNSIGNED_SHORT(read_memory_integer (read_register (SP_REGNUM), 2)) - -/* Stack grows downward. */ - -#define INNER_THAN < - - -#define BREAKPOINT {0x53, 0x00} - - -/* 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. */ -/* 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) - -/* 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 short - -/*# define NUM_REGS 20 /* 20 for fake HW support */ -# define NUM_REGS 11 -# define REGISTER_BYTES (NUM_REGS*2) - - -/* Index within `registers' of the first byte of the space for - register N. */ - -#define REGISTER_BYTE(N) ((N) * 2) - -/* Number of bytes of storage in the actual machine representation - for register N. On the H8/300, all regs are 2 bytes. */ - -#define REGISTER_RAW_SIZE(N) 2 - -/* Number of bytes of storage in the program's representation - for register N. On the H8/300, all regs are 2 bytes. */ - -#define REGISTER_VIRTUAL_SIZE(N) 2 - -/* Largest value REGISTER_RAW_SIZE can have. */ - -#define MAX_REGISTER_RAW_SIZE 2 - -/* Largest value REGISTER_VIRTUAL_SIZE can have. */ - -#define MAX_REGISTER_VIRTUAL_SIZE 2 - -/* 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) */ - -/* Convert data from virtual format for register REGNUM - to raw format for register REGNUM. */ - -/*#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) */ - -/* Return the GDB type object for the "standard" data type - of data in register N. */ - -#define REGISTER_VIRTUAL_TYPE(N) builtin_type_unsigned_short - - -/* Initializer for an array of names of registers. - Entries beyond the first NUM_REGS are ignored. */ - -#if NUM_REGS==20 -#define REGISTER_NAMES \ - {"r0", "r1", "r2", "r3", "r4", "r5", "r6", "sp",\ - "ccr","pc","cycles","hcheck","tier","tcsr","frc",\ - "ocra","ocrb","tcr","tocr","icra"} -#else -#define REGISTER_NAMES \ - {"r0", "r1", "r2", "r3", "r4", "r5", "r6", "sp", "ccr","pc","cycles"} -#endif - -/* 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 FP_REGNUM 6 /* Contains address of executing stack frame */ -#define SP_REGNUM 7 /* Contains address of top of stack */ -#define CCR_REGNUM 8 /* Contains processor status */ -#define PC_REGNUM 9 /* Contains program counter */ - -/* 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)) - -/* Describe the pointer in each stack frame to the previous stack frame - (its caller). */ - -/* FRAME_CHAIN takes a frame's nominal address - and produces the frame's chain-pointer. - - However, if FRAME_CHAIN_VALID returns zero, - it means the given frame is the outermost one and has no caller. */ - -/* In the case of the H8/300, the frame's nominal address - is the address of a 2-byte word containing the calling frame's address. */ - -/* Use the alternate method of avoiding running up off the end of - the frame chain or following frames back into the startup code. - See the comments in objfile.h */ - -#define FRAME_CHAIN_VALID_ALTERNATE - -/* 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 REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) \ -{ memcpy((TO), (FROM), 2); } -#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) \ -{ memcpy((TO), (FROM), 2); } - -#define BEFORE_MAIN_LOOP_HOOK \ - hms_before_main_loop(); - -typedef unsigned short INSN_WORD; - -#define ADDR_BITS_REMOVE(addr) ((addr) & 0xffff) -#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) - |