binutils-gdb/gdb/h8500-tdep.c

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/* Target-machine dependent code for Hitachi H8/500, for GDB.
General cleanup and simplication of disassembler interface. * a29k-pinsn.c, arm-pinsn.c, convex-pinsn.c, gould-pinsn.c, hppa-pinsn.c, i386-pinsn.c, i960-pinsn.c, m68k-pinsn.c, m88k-pinsn.c, mips-pinsn.c, ns32k-pinsn.c, pyr-pinsn.c, rs6000-pinsn.c, sparc-pinsn.c, tahoe-pinsn.c, vax-pinsn.c: Remove. * gould-tdep.c, ns32k-tdep.c, tahoe-tdep.c, vax-tdep.c: New files, had been -pinsn.c files. * Makefile.in (ALLDEPFILES): Remove removed files. (a29k-pinsn.o, arm-pinsn.o, convex-pinsn.o, gould-pinsn.o, hppa-pinsn.o, i386-pinsn.o, i960-pinsn.o, m68k-pinsn.o, m88k-pinsn.o, mips-pinsn.o, ns32k-pinsn.o, pyr-pinsn.o, rs6000-pinsn.o, sparc-pinsn.o, tahoe-pinsn.o, vax-pinsn.o): Remove compile actions. * arm-tdep.o, gould-tdep.o, ns32k-tdep.o, tahoe-tdep.o, vax-tdep.o: Add compile actions. * defs.h (tm_print_insn): New global. * a29k-tdep.c (gdb_print_insn_a29k): New function. (_initialize_a29k_tdep): Rename from _initialize_29k, set tm_print_insn. * alpha-tdep.c (print_insn): Remove. (_initialize_alpha_tdep): Set tm_print_insn. * arm-tdep.c (arm_print_insn): New function, was print_insn in arm-pinsn.c. * convex-tdep.c (convex_print_insn): New function, was print_insn in convex-pinsn.c. * h8300-tdep.c (print_insn): Remove. (gdb_print_insn_h8300): New function. (_initialize_h8300_tdep): New function. * h8500-tdep.c (print_insn): Remove. (_initialize_h8500_tdep): New function. * hppa-tdep.c (_initialize_hppa_tdep): Set tm_print_insn. * i386-tdep.c (_initialize_i386_tdep): New function. * i960-tdep.c (mem, next_insn): New functions, were in i960-pinsn.c. (_initialize_i960_tdep): Set tm_print_insn. * m68k-tdep.c (_initialize_m68k_tdep): New function. * m88k-tdep.c (_initialize_m88k_tdep): New function. * mips-tdep.c (gdb_print_insn_mips): New function. (_initialize_mips_tdep): Set tm_print_insn. * pyr-tdep.c (pyr_print_insn): New function, was print_insn in pyr-pinsn.c. * rs6000-tdep.c (_initialize_rs6000_tdep): New function. * sh-tdep.c (print_insn): Remove. (gdb_print_insn_sh): New function. (_initialize_sh_tdep): Set tm_print_insn. * sparc-tdep.c (_initialize_sparc_tdep): New function. * w65-tdep.c (print_insn): Remove. (_initialize_w65_tdep): New function. * z8k-tdep.c (print_insn): Remove. (gdb_print_insn_z8k): New function. (_initialize_z8k_tdep): Set tm_print_insn. * printcmd.c (print_insn): New function, generic disassembler. * config/*/*.mt (TDEPFILES): Remove refs to *-pinsn.o. * defs.h (query_hook, error_hook): Fix prototypes.
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Copyright 1993, 1994, 1995 Free Software Foundation, Inc.
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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
*/
#include "defs.h"
#include "frame.h"
#include "obstack.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "gdbcmd.h"
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
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#include "value.h"
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#include "dis-asm.h"
#include "../opcodes/h8500-opc.h"
;
#define UNSIGNED_SHORT(X) ((X) & 0xffff)
int code_size = 2;
int data_size = 2;
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/* Shape of an H8/500 frame :
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arg-n
..
arg-2
arg-1
return address <2 or 4 bytes>
old fp <2 bytes>
auto-n
..
auto-1
saved registers
*/
/* an easy to debug H8 stack frame looks like:
0x6df6 push r6
0x0d76 mov.w r7,r6
0x6dfn push reg
0x7905 nnnn mov.w #n,r5 or 0x1b87 subs #2,sp
0x1957 sub.w r5,sp
*/
#define IS_PUSH(x) (((x) & 0xff00)==0x6d00)
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#define IS_LINK_8(x) ((x) == 0x17)
#define IS_LINK_16(x) ((x) == 0x1f)
#define IS_MOVE_FP(x) ((x) == 0x0d76)
#define IS_MOV_SP_FP(x) ((x) == 0x0d76)
#define IS_SUB2_SP(x) ((x) == 0x1b87)
#define IS_MOVK_R5(x) ((x) == 0x7905)
#define IS_SUB_R5SP(x) ((x) == 0x1957)
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#define LINK_8 0x17
#define LINK_16 0x1f
int minimum_mode = 1;
CORE_ADDR examine_prologue ();
void frame_find_saved_regs ();
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
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CORE_ADDR
h8500_skip_prologue (start_pc)
CORE_ADDR start_pc;
{
short int w;
w = read_memory_integer (start_pc, 1);
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if (w == LINK_8)
{
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
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start_pc += 2;
w = read_memory_integer (start_pc, 1);
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}
if (w == LINK_16)
{
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
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start_pc += 3;
w = read_memory_integer (start_pc, 2);
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}
return start_pc;
}
/* Given a GDB frame, determine the address of the calling function's frame.
This will be used to create a new GDB frame struct, and then
INIT_EXTRA_FRAME_INFO and INIT_FRAME_PC will be called for the new frame.
For us, the frame address is its stack pointer value, so we look up
the function prologue to determine the caller's sp value, and return it. */
CORE_ADDR
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
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h8500_frame_chain (thisframe)
struct frame_info *thisframe;
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{
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
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if (!inside_entry_file (thisframe->pc))
return (read_memory_integer (FRAME_FP (thisframe), PTR_SIZE));
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
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else
return 0;
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}
/* Fetch the instruction at ADDR, returning 0 if ADDR is beyond LIM or
is not the address of a valid instruction, the address of the next
instruction beyond ADDR otherwise. *PWORD1 receives the first word
of the instruction.*/
CORE_ADDR
NEXT_PROLOGUE_INSN (addr, lim, pword1)
CORE_ADDR addr;
CORE_ADDR lim;
char *pword1;
{
if (addr < lim + 8)
{
read_memory (addr, pword1, 1);
read_memory (addr, pword1 + 1, 1);
return 1;
}
return 0;
}
/* Examine the prologue of a function. `ip' points to the first instruction.
`limit' is the limit of the prologue (e.g. the addr of the first
linenumber, or perhaps the program counter if we're stepping through).
`frame_sp' is the stack pointer value in use in this frame.
`fsr' is a pointer to a frame_saved_regs structure into which we put
info about the registers saved by this frame.
`fi' is a struct frame_info pointer; we fill in various fields in it
to reflect the offsets of the arg pointer and the locals pointer. */
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/* Return the saved PC from this frame. */
CORE_ADDR
frame_saved_pc (frame)
struct frame_info *frame;
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{
return read_memory_integer (FRAME_FP (frame) + 2, PTR_SIZE);
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}
CORE_ADDR
frame_locals_address (fi)
struct frame_info *fi;
{
return fi->frame;
}
/* Return the address of the argument block for the frame
described by FI. Returns 0 if the address is unknown. */
CORE_ADDR
frame_args_address (fi)
struct frame_info *fi;
{
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
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return fi->frame;
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}
void
h8300_pop_frame ()
{
unsigned regnum;
struct frame_saved_regs fsr;
struct frame_info *frame = get_current_frame ();
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get_frame_saved_regs (frame, &fsr);
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for (regnum = 0; regnum < 8; regnum++)
{
if (fsr.regs[regnum])
write_register (regnum, read_memory_short (fsr.regs[regnum]));
flush_cached_frames ();
}
}
void
print_register_hook (regno)
{
if (regno == CCR_REGNUM)
{
/* CCR register */
int C, Z, N, V;
unsigned char b[2];
unsigned char l;
read_relative_register_raw_bytes (regno, b);
l = b[1];
printf_unfiltered ("\t");
printf_unfiltered ("I-%d - ", (l & 0x80) != 0);
1993-03-20 00:05:34 +01:00
N = (l & 0x8) != 0;
Z = (l & 0x4) != 0;
V = (l & 0x2) != 0;
C = (l & 0x1) != 0;
printf_unfiltered ("N-%d ", N);
printf_unfiltered ("Z-%d ", Z);
printf_unfiltered ("V-%d ", V);
printf_unfiltered ("C-%d ", C);
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if ((C | Z) == 0)
printf_unfiltered ("u> ");
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if ((C | Z) == 1)
printf_unfiltered ("u<= ");
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if ((C == 0))
printf_unfiltered ("u>= ");
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if (C == 1)
printf_unfiltered ("u< ");
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if (Z == 0)
printf_unfiltered ("!= ");
1993-03-20 00:05:34 +01:00
if (Z == 1)
printf_unfiltered ("== ");
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if ((N ^ V) == 0)
printf_unfiltered (">= ");
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if ((N ^ V) == 1)
printf_unfiltered ("< ");
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if ((Z | (N ^ V)) == 0)
printf_unfiltered ("> ");
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if ((Z | (N ^ V)) == 1)
printf_unfiltered ("<= ");
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}
}
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
int
h8500_register_size (regno)
int regno;
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{
switch (regno) {
case SEG_C_REGNUM:
case SEG_D_REGNUM:
case SEG_E_REGNUM:
case SEG_T_REGNUM:
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
return 1;
case R0_REGNUM:
case R1_REGNUM:
case R2_REGNUM:
case R3_REGNUM:
case R4_REGNUM:
case R5_REGNUM:
case R6_REGNUM:
case R7_REGNUM:
case CCR_REGNUM:
return 2;
case PR0_REGNUM:
case PR1_REGNUM:
case PR2_REGNUM:
case PR3_REGNUM:
case PR4_REGNUM:
case PR5_REGNUM:
case PR6_REGNUM:
case PR7_REGNUM:
case PC_REGNUM:
return 4;
}
1993-03-20 00:05:34 +01:00
}
struct type *
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
h8500_register_virtual_type (regno)
int regno;
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{
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
switch (regno)
1993-03-20 00:05:34 +01:00
{
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
case SEG_C_REGNUM:
case SEG_E_REGNUM:
case SEG_D_REGNUM:
case SEG_T_REGNUM:
1993-03-20 00:05:34 +01:00
return builtin_type_unsigned_char;
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
case R0_REGNUM:
case R1_REGNUM:
case R2_REGNUM:
case R3_REGNUM:
case R4_REGNUM:
case R5_REGNUM:
case R6_REGNUM:
case R7_REGNUM:
1993-03-20 00:05:34 +01:00
case CCR_REGNUM:
return builtin_type_unsigned_short;
case PR0_REGNUM:
case PR1_REGNUM:
case PR2_REGNUM:
case PR3_REGNUM:
case PR4_REGNUM:
case PR5_REGNUM:
case PR6_REGNUM:
case PR7_REGNUM:
case PC_REGNUM:
return builtin_type_unsigned_long;
1993-03-20 00:05:34 +01:00
default:
abort ();
1993-03-20 00:05:34 +01:00
}
}
/* 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. */
void
frame_find_saved_regs (frame_info, frame_saved_regs)
struct frame_info *frame_info;
struct frame_saved_regs *frame_saved_regs;
{
register int regnum;
register int regmask;
register CORE_ADDR next_addr;
register CORE_ADDR pc;
unsigned char thebyte;
1993-09-01 23:56:42 +02:00
memset (frame_saved_regs, '\0', sizeof *frame_saved_regs);
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if ((frame_info)->pc >= (frame_info)->frame - CALL_DUMMY_LENGTH - FP_REGNUM * 4 - 4
&& (frame_info)->pc <= (frame_info)->frame)
{
next_addr = (frame_info)->frame;
pc = (frame_info)->frame - CALL_DUMMY_LENGTH - FP_REGNUM * 4 - 4;
}
else
{
pc = get_pc_function_start ((frame_info)->pc);
/* Verify we have a link a6 instruction next;
if not we lose. If we win, find the address above the saved
regs using the amount of storage from the link instruction.
*/
thebyte = read_memory_integer (pc, 1);
1993-03-20 00:05:34 +01:00
if (0x1f == thebyte)
next_addr = (frame_info)->frame + read_memory_integer (pc += 1, 2), pc += 2;
else if (0x17 == thebyte)
next_addr = (frame_info)->frame + read_memory_integer (pc += 1, 1), pc += 1;
else
goto lose;
#if 0
/* FIXME steve */
/* If have an add:g.waddal #-n, sp next, adjust next_addr. */
if ((0x0c0177777 & read_memory_integer (pc, 2)) == 0157774)
next_addr += read_memory_integer (pc += 2, 4), pc += 4;
1993-03-20 00:05:34 +01:00
#endif
}
thebyte = read_memory_integer (pc, 1);
if (thebyte == 0x12)
{
/* Got stm */
pc++;
regmask = read_memory_integer (pc, 1);
pc++;
for (regnum = 0; regnum < 8; regnum++, regmask >>= 1)
{
if (regmask & 1)
{
(frame_saved_regs)->regs[regnum] = (next_addr += 2) - 2;
}
}
thebyte = read_memory_integer (pc, 1);
}
1993-03-20 00:05:34 +01:00
/* Maybe got a load of pushes */
while (thebyte == 0xbf)
{
pc++;
regnum = read_memory_integer (pc, 1) & 0x7;
pc++;
(frame_saved_regs)->regs[regnum] = (next_addr += 2) - 2;
thebyte = read_memory_integer (pc, 1);
}
lose:;
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/* Remember the address of the frame pointer */
(frame_saved_regs)->regs[FP_REGNUM] = (frame_info)->frame;
/* This is where the old sp is hidden */
(frame_saved_regs)->regs[SP_REGNUM] = (frame_info)->frame;
/* And the PC - remember the pushed FP is always two bytes long */
(frame_saved_regs)->regs[PC_REGNUM] = (frame_info)->frame + 2;
}
saved_pc_after_call (frame)
1993-03-20 00:05:34 +01:00
{
int x;
int a = read_register (SP_REGNUM);
x = read_memory_integer (a, code_size);
if (code_size == 2)
{
/* Stick current code segement onto top */
x &= 0xffff;
x |= read_register (SEG_C_REGNUM) << 16;
}
x &= 0xffffff;
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return x;
}
/* Nonzero if instruction at PC is a return instruction. */
about_to_return (pc)
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{
int b1 = read_memory_integer (pc, 1);
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switch (b1)
1993-03-20 00:05:34 +01:00
{
case 0x14: /* rtd #8 */
case 0x1c: /* rtd #16 */
case 0x19: /* rts */
case 0x1a: /* rte */
return 1;
case 0x11:
{
int b2 = read_memory_integer (pc + 1, 1);
switch (b2)
1993-03-20 00:05:34 +01:00
{
case 0x18: /* prts */
case 0x14: /* prtd #8 */
case 0x16: /* prtd #16 */
return 1;
}
}
}
return 0;
}
void
h8500_set_pointer_size (newsize)
int newsize;
{
static int oldsize = 0;
if (oldsize != newsize)
{
printf_unfiltered ("pointer size set to %d bits\n", newsize);
1993-03-20 00:05:34 +01:00
oldsize = newsize;
if (newsize == 32)
{
minimum_mode = 0;
}
else
{
minimum_mode = 1;
}
_initialize_gdbtypes ();
}
}
struct cmd_list_element *setmemorylist;
#define C(name,a,b,c) name () { h8500_set_pointer_size(a); code_size = b; data_size = c; }
1993-03-20 00:05:34 +01:00
C(big_command, 32,4,4);
C(medium_command, 32, 4,2);
C(compact_command, 32,2,4);
C(small_command, 16,2,2);
1993-03-20 00:05:34 +01:00
static void
set_memory (args, from_tty)
char *args;
int from_tty;
{
printf_unfiltered ("\"set memory\" must be followed by the name of a memory subcommand.\n");
help_list (setmemorylist, "set memory ", -1, gdb_stdout);
1993-03-20 00:05:34 +01:00
}
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
/* See if variable name is ppc or pr[0-7] */
1993-03-20 00:05:34 +01:00
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
int
h8500_is_trapped_internalvar (name)
char *name;
{
if (name[0] != 'p')
return 0;
if (strcmp (name + 1, "pc") == 0)
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
return 1;
if (name[1] == 'r'
&& name[2] >= '0'
&& name[2] <= '7'
&& name[3] == '\000')
return 1;
else
return 0;
}
value_ptr
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
h8500_value_of_trapped_internalvar (var)
struct internalvar *var;
{
LONGEST regval;
unsigned char regbuf[4];
int page_regnum, regnum;
regnum = var->name[2] == 'c' ? PC_REGNUM : var->name[2] - '0';
switch (var->name[2])
{
case 'c':
page_regnum = SEG_C_REGNUM;
break;
case '0':
case '1':
case '2':
case '3':
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
page_regnum = SEG_D_REGNUM;
break;
case '4':
case '5':
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
page_regnum = SEG_E_REGNUM;
break;
case '6':
case '7':
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
page_regnum = SEG_T_REGNUM;
break;
}
get_saved_register (regbuf, NULL, NULL, selected_frame, page_regnum, NULL);
regval = regbuf[0] << 16;
get_saved_register (regbuf, NULL, NULL, selected_frame, regnum, NULL);
regval |= regbuf[0] << 8 | regbuf[1]; /* XXX host/target byte order */
free (var->value); /* Free up old value */
var->value = value_from_longest (builtin_type_unsigned_long, regval);
release_value (var->value); /* Unchain new value */
VALUE_LVAL (var->value) = lval_internalvar;
VALUE_INTERNALVAR (var->value) = var;
return var->value;
}
void
h8500_set_trapped_internalvar (var, newval, bitpos, bitsize, offset)
struct internalvar *var;
int offset, bitpos, bitsize;
value_ptr newval;
1993-03-20 00:05:34 +01:00
{
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
char *page_regnum, *regnum;
char expression[100];
unsigned new_regval;
struct type *type;
enum type_code newval_type_code;
type = VALUE_TYPE (newval);
newval_type_code = TYPE_CODE (type);
if ((newval_type_code != TYPE_CODE_INT
&& newval_type_code != TYPE_CODE_PTR)
|| TYPE_LENGTH (type) != sizeof (new_regval))
error ("Illegal type (%s) for assignment to $%s\n",
TYPE_NAME (type), var->name);
1993-03-20 00:05:34 +01:00
new_regval = *(long *) VALUE_CONTENTS_RAW (newval);
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
regnum = var->name + 1;
switch (var->name[2])
{
case 'c':
page_regnum = "cp";
break;
case '0':
case '1':
case '2':
case '3':
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
page_regnum = "dp";
break;
case '4':
case '5':
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
page_regnum = "ep";
break;
case '6':
case '7':
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
page_regnum = "tp";
break;
}
sprintf (expression, "$%s=%d", page_regnum, new_regval >> 16);
parse_and_eval (expression);
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
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sprintf (expression, "$%s=%d", regnum, new_regval & 0xffff);
parse_and_eval (expression);
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
}
void
* findvar.c (read_register, write_register): Make these capable of reading/writing registers that are shorter than REGISTER_TYPE. * (value_from_register): Install H8500 specific code to return proper value when register is being used as a pointer. * h8500-tdep.c: Remove extra defines of NUM_REGS. (h8500_skip_prologue): Use correct lengths for LINK instructions. (FRAME_CHAIN): Change name to h8500_frame_chain. Rewrite code to chain frames properly by combining frame pointer with T reg. (init_extra_frame_info): Delete. It's now a macro. (frame_args_address): Don't add PTR_SIZE. Stack args are already offset by the correct amount off of the frame pointer. (register_byte): Delete. It's now a macro. (register_raw_size, register_virtual_size): Delete. Replaced by common routine h8500_register_size, cuz there's no difference between the raw & virtual sizes on this machine. (register_convert_to_raw, register_convert_to_virtual): Delete, cuz there's no difference between the raw & virtual forms. Replaced by memcpy in tm file. (register_virtual_type): Rename to h8500_register_virtual_type. Get rid of pointer pseudo-regs, use _REGNUM with all reg names. (_initialize_h8500_tdep): Get rid of crock to ensure that GDB & emulator have same reg offsets. This is all handled in the simulator code now. (h8500_trapped_internalvar): New routine to detect references to convenience vars acting as pointer pseudo-regs. (h8500_value_trapped_internalvar): Conjure up value of pointer pseudo-regs. (h8500_set_trapped_internalvar): Convert set value in real register references. infcmd.c (read_pc, write_pc): Add h8500 specific code to handle code segment register. infrun.c (proceed): Simplify. Call write_pc instead of doing it by hand. (wait_for_inferior): Add h8500 specific code to add stack segment when reading SP register. remote-sim.c (fetch_register): Spacing. tm-h8500.h: #define GDB_TARGET_IS_H8500 to make it easier to detect cruft. Redo all register manipulation stuff. Get rid of pointer pseudo-regs. (INIT_EXTRA_FRAME_INFO): Adds stack segment to frame pointer. (IS_TRAPPED_INTERNALVAL, VALUE_OF_TRAPPED_INTERNALVAR, SET_TRAPPED_INTERNALVAR): Use these to create internal vars for pointer pseudo-regs.
1993-03-25 23:34:26 +01:00
_initialize_h8500_tdep ()
{
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add_prefix_cmd ("memory", no_class, set_memory,
"set the memory model", &setmemorylist, "set memory ", 0,
&setlist);
add_cmd ("small", class_support, small_command,
"Set small memory model. (16 bit code, 16 bit data)", &setmemorylist);
add_cmd ("big", class_support, big_command,
"Set big memory model. (32 bit code, 32 bit data)", &setmemorylist);
add_cmd ("medium", class_support, medium_command,
"Set medium memory model. (32 bit code, 16 bit data)", &setmemorylist);
add_cmd ("compact", class_support, compact_command,
"Set compact memory model. (16 bit code, 32 bit data)", &setmemorylist);
1993-03-20 00:05:34 +01:00
}
CORE_ADDR
h8500_read_sp ()
{
return read_register (PR7_REGNUM);
}
void
h8500_write_sp (v)
CORE_ADDR v;
{
write_register (PR7_REGNUM, v);
}
CORE_ADDR
h8500_read_pc (pid)
int pid;
{
return read_register (PC_REGNUM);
}
void
h8500_write_pc (v, pid)
CORE_ADDR v;
int pid;
{
write_register (PC_REGNUM, v);
}
CORE_ADDR
h8500_read_fp ()
{
return read_register (PR6_REGNUM);
}
void
h8500_write_fp (v)
CORE_ADDR v;
{
write_register (PR6_REGNUM, v);
}
General cleanup and simplication of disassembler interface. * a29k-pinsn.c, arm-pinsn.c, convex-pinsn.c, gould-pinsn.c, hppa-pinsn.c, i386-pinsn.c, i960-pinsn.c, m68k-pinsn.c, m88k-pinsn.c, mips-pinsn.c, ns32k-pinsn.c, pyr-pinsn.c, rs6000-pinsn.c, sparc-pinsn.c, tahoe-pinsn.c, vax-pinsn.c: Remove. * gould-tdep.c, ns32k-tdep.c, tahoe-tdep.c, vax-tdep.c: New files, had been -pinsn.c files. * Makefile.in (ALLDEPFILES): Remove removed files. (a29k-pinsn.o, arm-pinsn.o, convex-pinsn.o, gould-pinsn.o, hppa-pinsn.o, i386-pinsn.o, i960-pinsn.o, m68k-pinsn.o, m88k-pinsn.o, mips-pinsn.o, ns32k-pinsn.o, pyr-pinsn.o, rs6000-pinsn.o, sparc-pinsn.o, tahoe-pinsn.o, vax-pinsn.o): Remove compile actions. * arm-tdep.o, gould-tdep.o, ns32k-tdep.o, tahoe-tdep.o, vax-tdep.o: Add compile actions. * defs.h (tm_print_insn): New global. * a29k-tdep.c (gdb_print_insn_a29k): New function. (_initialize_a29k_tdep): Rename from _initialize_29k, set tm_print_insn. * alpha-tdep.c (print_insn): Remove. (_initialize_alpha_tdep): Set tm_print_insn. * arm-tdep.c (arm_print_insn): New function, was print_insn in arm-pinsn.c. * convex-tdep.c (convex_print_insn): New function, was print_insn in convex-pinsn.c. * h8300-tdep.c (print_insn): Remove. (gdb_print_insn_h8300): New function. (_initialize_h8300_tdep): New function. * h8500-tdep.c (print_insn): Remove. (_initialize_h8500_tdep): New function. * hppa-tdep.c (_initialize_hppa_tdep): Set tm_print_insn. * i386-tdep.c (_initialize_i386_tdep): New function. * i960-tdep.c (mem, next_insn): New functions, were in i960-pinsn.c. (_initialize_i960_tdep): Set tm_print_insn. * m68k-tdep.c (_initialize_m68k_tdep): New function. * m88k-tdep.c (_initialize_m88k_tdep): New function. * mips-tdep.c (gdb_print_insn_mips): New function. (_initialize_mips_tdep): Set tm_print_insn. * pyr-tdep.c (pyr_print_insn): New function, was print_insn in pyr-pinsn.c. * rs6000-tdep.c (_initialize_rs6000_tdep): New function. * sh-tdep.c (print_insn): Remove. (gdb_print_insn_sh): New function. (_initialize_sh_tdep): Set tm_print_insn. * sparc-tdep.c (_initialize_sparc_tdep): New function. * w65-tdep.c (print_insn): Remove. (_initialize_w65_tdep): New function. * z8k-tdep.c (print_insn): Remove. (gdb_print_insn_z8k): New function. (_initialize_z8k_tdep): Set tm_print_insn. * printcmd.c (print_insn): New function, generic disassembler. * config/*/*.mt (TDEPFILES): Remove refs to *-pinsn.o. * defs.h (query_hook, error_hook): Fix prototypes.
1995-01-17 05:36:51 +01:00
void
_initialize_h8500_tdep ()
{
tm_print_insn = gdb_print_insn_sh;
}