2001-06-24 Ben Elliston <bje@redhat.com>
* m88k-dis.c: Format to conform to GNU coding standards.
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@ -1,3 +1,7 @@
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2001-06-24 Ben Elliston <bje@redhat.com>
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* m88k-dis.c: Format to conform to GNU coding standards.
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2001-06-23 Andreas Jaeger <aj@suse.de>
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* disassemble.c (disassembler_usage): Add unused attribute.
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@ -1,5 +1,5 @@
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/* Print instructions for the Motorola 88000, for GDB and GNU Binutils.
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Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1993, 1998, 2000
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Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1993, 1998, 2000, 2001
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Free Software Foundation, Inc.
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Contributed by Data General Corporation, November 1989.
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Partially derived from an earlier printcmd.c.
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@ -31,28 +31,16 @@ static int
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m88kdis PARAMS ((bfd_vma, unsigned long, struct disassemble_info *));
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static void
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printop PARAMS ((struct disassemble_info *, OPSPEC *,
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unsigned long, bfd_vma, int));
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printop PARAMS ((struct disassemble_info *, OPSPEC *, unsigned long, bfd_vma, int));
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static void
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init_disasm PARAMS ((void));
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static void
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install PARAMS ((INSTAB *instptr));
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/*
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* Disassemble an M88000 Instruction
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*
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*
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* This module decodes the instruction at memaddr.
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*
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* Revision History
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*
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* Revision 1.0 11/08/85 Creation date by Motorola
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* 05/11/89 R. Trawick adapted to GDB interface.
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* 07/12/93 Ian Lance Taylor updated to
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* binutils interface.
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*/
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/* Disassemble an M88000 instruction at `memaddr'. */
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int
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print_insn_m88k (memaddr, info)
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@ -62,7 +50,7 @@ print_insn_m88k (memaddr, info)
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bfd_byte buffer[4];
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int status;
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/* Instruction addresses may have low two bits set. Clear them. */
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/* Instruction addresses may have low two bits set. Clear them. */
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memaddr &=~ (bfd_vma) 3;
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status = (*info->read_memory_func) (memaddr, buffer, 4, info);
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@ -76,10 +64,11 @@ print_insn_m88k (memaddr, info)
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}
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/*
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* disassemble the instruction in 'instruction'.
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* 'pc' should be the address of this instruction, it will
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* be used to print the target address if this is a relative jump or call
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* the disassembled instruction is written to 'info'.
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* Disassemble the instruction in `instruction'.
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* `pc' should be the address of this instruction, it will be used to
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* print the target address if this is a relative jump or call the
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* disassembled instruction is written to `info'.
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*
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* The function returns the length of this instruction in bytes.
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*/
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@ -98,7 +87,7 @@ m88kdis (pc, instruction, info)
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if (! ihashtab_initialized)
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init_disasm ();
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/* create the appropriate mask to isolate the opcode */
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/* Create the appropriate mask to isolate the opcode. */
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opmask = DEFMASK;
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class = instruction & DEFMASK;
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if ((class >= SFU0) && (class <= SFU7))
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@ -113,10 +102,10 @@ m88kdis (pc, instruction, info)
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else if (class == RRI10)
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opmask = RRI10MASK;
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/* isolate the opcode */
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/* Isolate the opcode. */
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opcode = instruction & opmask;
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/* search the hash table with the isolated opcode */
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/* Search the hash table with the isolated opcode. */
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for (entry_ptr = hashtable[opcode % HASHVAL];
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(entry_ptr != NULL) && (entry_ptr->opcode != opcode);
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entry_ptr = entry_ptr->next)
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@ -136,35 +125,27 @@ m88kdis (pc, instruction, info)
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}
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/*
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* Decode an Operand of an Instruction
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*
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* Functional Description
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*
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* This module formats and writes an operand of an instruction to info
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* based on the operand specification. When the first flag is set this
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* is the first operand of an instruction. Undefined operand types
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* cause a <dis error> message.
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*
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* Parameters
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* disassemble_info where the operand may be printed
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* OPSPEC *opptr Pointer to an operand specification
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* UINT inst Instruction from which operand is extracted
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* UINT pc PC of instruction; used for pc-relative disp.
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* int first Flag which if nonzero indicates the first
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* operand of an instruction
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*
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* Output
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*
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* The operand specified is extracted from the instruction and is
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* written to buf in the format specified. The operand is preceded
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* by a comma if it is not the first operand of an instruction and it
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* is not a register indirect form. Registers are preceded by 'r' and
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* hex values by '0x'.
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*
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* Revision History
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*
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* Revision 1.0 11/08/85 Creation date
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*/
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* Decode an Operand of an instruction.
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*
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* This function formats and writes an operand of an instruction to
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* info based on the operand specification. When the `first' flag is
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* set this is the first operand of an instruction. Undefined operand
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* types cause a <dis error> message.
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*
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* Parameters:
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* disassemble_info where the operand may be printed
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* OPSPEC *opptr pointer to an operand specification
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* UINT inst instruction from which operand is extracted
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* UINT pc pc of instruction; used for pc-relative disp.
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* int first flag which if nonzero indicates the first
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* operand of an instruction
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*
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* The operand specified is extracted from the instruction and is
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* written to buf in the format specified. The operand is preceded by
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* a comma if it is not the first operand of an instruction and it is
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* not a register indirect form. Registers are preceded by 'r' and
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* hex values by '0x'.
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*/
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static void
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printop (info, opptr, inst, pc, first)
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@ -265,8 +246,8 @@ printop (info, opptr, inst, pc, first)
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case BF:
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(*info->fprintf_func) (info->stream, "%d<%d>",
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UEXT (inst, (opptr->offset) + 5, 5),
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UEXT (inst, opptr->offset, 5));
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UEXT (inst, (opptr->offset) + 5, 5),
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UEXT (inst, opptr->offset, 5));
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break;
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default:
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@ -276,48 +257,30 @@ printop (info, opptr, inst, pc, first)
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}
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/*
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* Initialize the Disassembler Instruction Table
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*
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* Initialize the hash table and instruction table for the disassembler.
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* This should be called once before the first call to disasm().
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*
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* Parameters
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*
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* Output
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*
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* If the debug option is selected, certain statistics about the hashing
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* distribution are written to stdout.
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*
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* Revision History
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*
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* Revision 1.0 11/08/85 Creation date
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*/
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* Initialize the disassembler instruction table.
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*
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* Initialize the hash table and instruction table for the
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* disassembler. This should be called once before the first call to
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* disasm().
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*/
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static void
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init_disasm ()
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{
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int i, size;
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int i, size;
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for (i = 0; i < HASHVAL; i++)
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hashtable[i] = NULL;
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for (i = 0; i < HASHVAL; i++)
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hashtable[i] = NULL;
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size = sizeof (instructions) / sizeof (INSTAB);
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for (i = 0; i < size; i++)
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install (&instructions[i]);
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size = sizeof (instructions) / sizeof (INSTAB);
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for (i = 0; i < size; i++)
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install (&instructions[i]);
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}
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/*
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* Insert an instruction into the disassembler table by hashing the
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* opcode and inserting it into the linked list for that hash value.
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*
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* Parameters
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*
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* INSTAB *instptr Pointer to the entry in the instruction table
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* to be installed
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*
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* Revision 1.0 11/08/85 Creation date
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* 05/11/89 R. TRAWICK ADAPTED FROM MOTOROLA
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*/
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* Insert an instruction into the disassembler table by hashing the
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* opcode and inserting it into the linked list for that hash value.
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*/
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static void
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install (instptr)
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