/* Parameters for execution on a H8/500 series machine. Copyright 1993, 1994, 1995, 1998, 1999, 2000, 2001, 2002, 2003 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. */ #include "regcache.h" /* NOTE: cagney/2002-11-24: This is a guess. */ #define DEPRECATED_USE_GENERIC_DUMMY_FRAMES 0 #define CALL_DUMMY_LOCATION ON_STACK #define DEPRECATED_PC_IN_CALL_DUMMY(pc, sp, frame_address) deprecated_pc_in_call_dummy_on_stack (pc, sp, frame_address) /* Contributed by Steve Chamberlain sac@cygnus.com */ #define GDB_TARGET_IS_H8500 /* 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) (h8500_skip_prologue (ip)) extern CORE_ADDR h8500_skip_prologue (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 (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 (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 (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)); internal_error (__FILE__, __LINE__, "failed internal consistency check"); } */ /* 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 DEPRECATED_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 DEPRECATED_STORE_RETURN_VALUE(TYPE,VALBUF) \ deprecated_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 DEPRECATED_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_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 (struct frame_info *); #define FRAME_SAVED_PC(FRAME) frame_saved_pc(FRAME) extern CORE_ADDR frame_saved_pc (struct frame_info *frame); #define FRAME_ARGS_ADDRESS(fi) (get_frame_base (fi)) #define FRAME_LOCALS_ADDRESS(fi) (get_frame_base (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(fi) (-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 (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 (void); #define SHORT_INT_MAX 32767 #define SHORT_INT_MIN -32768 typedef unsigned short INSN_WORD; extern CORE_ADDR h8500_addr_bits_remove (CORE_ADDR); #define ADDR_BITS_REMOVE(addr) h8500_addr_bits_remove (addr) #define read_memory_short(x) (read_memory_integer(x,2) & 0xffff) extern void h8500_do_registers_info (int regnum, int all); #define DEPRECATED_DO_REGISTERS_INFO(REGNUM,ALL) \ h8500_do_registers_info (REGNUM, ALL) 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 (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 (void); extern void h8500_write_sp (CORE_ADDR); extern CORE_ADDR h8500_read_fp (void); extern CORE_ADDR h8500_read_pc (ptid_t); extern void h8500_write_pc (CORE_ADDR, ptid_t); #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()