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Diffstat (limited to 'gdb/config/h8500/tm-h8500.h')
| -rw-r--r-- | gdb/config/h8500/tm-h8500.h | 293 |
1 files changed, 293 insertions, 0 deletions
diff --git a/gdb/config/h8500/tm-h8500.h b/gdb/config/h8500/tm-h8500.h new file mode 100644 index 00000000000..8f7d9664efd --- /dev/null +++ b/gdb/config/h8500/tm-h8500.h @@ -0,0 +1,293 @@ +/* Parameters for execution on a H8/500 series machine. + Copyright (C) 1993, 1995 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* Contributed by Steve Chamberlain sac@cygnus.com */ + +#define GDB_TARGET_IS_H8500 + +#define IEEE_FLOAT 1 + +/* Define the bit, byte, and word ordering of the machine. */ + +#define TARGET_BYTE_ORDER BIG_ENDIAN + +/* Define the sizes of integers and pointers. */ + +#define TARGET_INT_BIT 16 + +#define TARGET_LONG_BIT 32 + +#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 PARAMS ((CORE_ADDR)); + +/* 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() +extern CORE_ADDR saved_pc_after_call PARAMS ((void)); + +/* Stack grows downward. */ + +#define INNER_THAN(lhs,rhs) ((lhs) < (rhs)) + +/* 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 + +/* 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) h8500_register_size(N) +extern int h8500_register_size PARAMS ((int regno)); + +#define REGISTER_SIZE 4 + +#define REGISTER_VIRTUAL_SIZE(N) h8500_register_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 + +/* Return the GDB type object for the "standard" data type + of data in register N. */ + +#define REGISTER_VIRTUAL_TYPE(N) h8500_register_virtual_type(N) +extern struct type *h8500_register_virtual_type PARAMS ((int regno)); + +/* 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", \ + "cp", "dp", "ep", "tp", "sr", "pc"} + +/* 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_REGNUM 0 +#define R1_REGNUM 1 +#define R2_REGNUM 2 +#define R3_REGNUM 3 +#define R4_REGNUM 4 +#define R5_REGNUM 5 +#define R6_REGNUM 6 +#define R7_REGNUM 7 + +#define PR0_REGNUM 8 +#define PR1_REGNUM 9 +#define PR2_REGNUM 10 +#define PR3_REGNUM 11 +#define PR4_REGNUM 12 +#define PR5_REGNUM 13 +#define PR6_REGNUM 14 +#define PR7_REGNUM 15 + +#define SEG_C_REGNUM 16 /* Segment registers */ +#define SEG_D_REGNUM 17 +#define SEG_E_REGNUM 18 +#define SEG_T_REGNUM 19 + +#define CCR_REGNUM 20 /* Contains processor status */ +#define PC_REGNUM 21 /* Contains program counter */ + +#define NUM_REGS 22 + +#define SP_REGNUM PR7_REGNUM /* Contains address of top of stack */ +#define FP_REGNUM PR6_REGNUM /* Contains address of executing stack frame */ + +#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) \ + memcpy (VALBUF, (char *)(REGBUF), TYPE_LENGTH(TYPE)) + +/* Write into appropriate registers a function return value + of type TYPE, given in virtual format. */ + +#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 INIT_EXTRA_FRAME_INFO(fromleaf, fci) ; +/* (fci)->frame |= read_register(SEG_T_REGNUM) << 16;*/ + +#define FRAME_CHAIN(FRAME) h8500_frame_chain(FRAME) +struct frame_info; +extern CORE_ADDR h8500_frame_chain PARAMS ((struct frame_info *)); + +#define FRAME_SAVED_PC(FRAME) frame_saved_pc(FRAME) +extern CORE_ADDR frame_saved_pc PARAMS ((struct frame_info *frame)); + +#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame) + +#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) + +/* 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)) +struct frame_saved_regs; +extern void frame_find_saved_regs PARAMS ((struct frame_info *frame_info, struct frame_saved_regs *frame_saved_regs)); + + +/* Discard from the stack the innermost frame, restoring all registers. */ + +#define POP_FRAME { h8500_pop_frame (); } +extern void h8500_pop_frame PARAMS ((void)); + +#define SHORT_INT_MAX 32767 +#define SHORT_INT_MIN -32768 + +#define NAMES_HAVE_UNDERSCORE + +typedef unsigned short INSN_WORD; + +extern CORE_ADDR h8500_addr_bits_remove PARAMS ((CORE_ADDR)); +#define ADDR_BITS_REMOVE(addr) h8500_addr_bits_remove (addr) + +#define read_memory_short(x) (read_memory_integer(x,2) & 0xffff) + +#define PRINT_REGISTER_HOOK(regno) print_register_hook(regno) +extern void print_register_hook PARAMS ((int)); + +extern int minimum_mode; + +#define CALL_DUMMY_LENGTH 10 + +/* Fake variables to make it easy to use 24 bit register pointers */ + +#define IS_TRAPPED_INTERNALVAR h8500_is_trapped_internalvar +extern int h8500_is_trapped_internalvar PARAMS ((char *name)); + +#define VALUE_OF_TRAPPED_INTERNALVAR h8500_value_of_trapped_internalvar +extern struct value * h8500_value_of_trapped_internalvar (/* struct internalvar *var */); + +#define SET_TRAPPED_INTERNALVAR h8500_set_trapped_internalvar +extern void h8500_set_trapped_internalvar (/* struct internalvar *var, value newval, int bitpos, int bitsize, int offset */); + +extern CORE_ADDR h8500_read_sp PARAMS ((void)); +extern void h8500_write_sp PARAMS ((CORE_ADDR)); + +extern CORE_ADDR h8500_read_fp PARAMS ((void)); +extern void h8500_write_fp PARAMS ((CORE_ADDR)); + +extern CORE_ADDR h8500_read_pc PARAMS ((int)); +extern void h8500_write_pc PARAMS ((CORE_ADDR, int)); + +#define TARGET_READ_SP() h8500_read_sp() +#define TARGET_WRITE_SP(x) h8500_write_sp(x) + +#define TARGET_READ_PC(pid) h8500_read_pc(pid) +#define TARGET_WRITE_PC(x,pid) h8500_write_pc(x,pid) + +#define TARGET_READ_FP() h8500_read_fp() +#define TARGET_WRITE_FP(x) h8500_write_fp(x) |