/* Instruction printing code for the AMD 29000
- Copyright (C) 1990 Free Software Foundation, Inc.
+ Copyright 1990, 1993, 1994, 1995, 1998, 2000, 2001, 2002
+ Free Software Foundation, Inc.
Contributed by Cygnus Support. Written by Jim Kingdon.
-This file is part of GDB.
+ This file is part of GDB and GNU Binutils.
-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 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.
+ 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. */
+ 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., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+#include "sysdep.h"
#include "dis-asm.h"
#include "opcode/a29k.h"
register number NUM on STREAM.
NUM is a number as found in the instruction, not as found in
debugging symbols; it must be in the range 0-255. */
+
static void
-print_general (num, info)
- int num;
- struct disassemble_info *info;
+print_general (int num, struct disassemble_info *info)
{
if (num < 128)
(*info->fprintf_func) (info->stream, "gr%d", num);
}
/* Like print_general but a special-purpose register.
-
+
The mnemonics used by the AMD assembler are not quite the same
as the ones in the User's Manual. We use the ones that the
assembler uses. */
+
static void
-print_special (num, info)
- int num;
- struct disassemble_info *info;
+print_special (unsigned int num, struct disassemble_info *info)
{
/* Register names of registers 0-SPEC0_NUM-1. */
- static char *spec0_names[] = {
- "vab", "ops", "cps", "cfg", "cha", "chd", "chc", "rbp", "tmc", "tmr",
- "pc0", "pc1", "pc2", "mmu", "lru"
+ static char *spec0_names[] =
+ {
+ "vab", "ops", "cps", "cfg", "cha", "chd", "chc", "rbp", "tmc", "tmr",
+ "pc0", "pc1", "pc2", "mmu", "lru", "rsn", "rma0", "rmc0", "rma1", "rmc1",
+ "spc0", "spc1", "spc2", "iba0", "ibc0", "iba1", "ibc1", "dba", "dbc",
+ "cir", "cdr"
};
#define SPEC0_NUM ((sizeof spec0_names) / (sizeof spec0_names[0]))
/* Register names of registers 128-128+SPEC128_NUM-1. */
- static char *spec128_names[] = {
- "ipc", "ipa", "ipb", "q", "alu", "bp", "fc", "cr"
+ static char *spec128_names[] =
+ {
+ "ipc", "ipa", "ipb", "q", "alu", "bp", "fc", "cr"
};
#define SPEC128_NUM ((sizeof spec128_names) / (sizeof spec128_names[0]))
/* Register names of registers 160-160+SPEC160_NUM-1. */
- static char *spec160_names[] = {
- "fpe", "inte", "fps", "sr163", "exop"
+ static char *spec160_names[] =
+ {
+ "fpe", "inte", "fps", "sr163", "exop"
};
#define SPEC160_NUM ((sizeof spec160_names) / (sizeof spec160_names[0]))
}
/* Is an instruction with OPCODE a delayed branch? */
+
static int
-is_delayed_branch (opcode)
- int opcode;
+is_delayed_branch (int opcode)
{
return (opcode == 0xa8 || opcode == 0xa9 || opcode == 0xa0 || opcode == 0xa1
|| opcode == 0xa4 || opcode == 0xa5
}
/* Now find the four bytes of INSN and put them in *INSN{0,8,16,24}. */
+
static void
-find_bytes_big (insn, insn0, insn8, insn16, insn24)
- char *insn;
- unsigned char *insn0;
- unsigned char *insn8;
- unsigned char *insn16;
- unsigned char *insn24;
+find_bytes_big (char *insn,
+ unsigned char *insn0,
+ unsigned char *insn8,
+ unsigned char *insn16,
+ unsigned char *insn24)
{
*insn24 = insn[0];
*insn16 = insn[1];
}
static void
-find_bytes_little (insn, insn0, insn8, insn16, insn24)
- char *insn;
- unsigned char *insn0;
- unsigned char *insn8;
- unsigned char *insn16;
- unsigned char *insn24;
+find_bytes_little (char *insn,
+ unsigned char *insn0,
+ unsigned char *insn8,
+ unsigned char *insn16,
+ unsigned char *insn24)
{
*insn24 = insn[3];
*insn16 = insn[2];
*insn0 = insn[0];
}
-typedef (*find_byte_func_type)
- PARAMS ((char *, unsigned char *, unsigned char *,
- unsigned char *, unsigned char *));
+typedef void (*find_byte_func_type)
+ (char *, unsigned char *, unsigned char *,
+ unsigned char *, unsigned char *);
/* Print one instruction from MEMADDR on INFO->STREAM.
Return the size of the instruction (always 4 on a29k). */
static int
-print_insn (memaddr, info)
- bfd_vma memaddr;
- struct disassemble_info *info;
+print_insn (bfd_vma memaddr, struct disassemble_info *info)
{
/* The raw instruction. */
char insn[4];
find_byte_func_type find_byte_func = (find_byte_func_type)info->private_data;
- struct a29k_opcode CONST * opcode;
+ struct a29k_opcode const * opcode;
{
int status =
printf ("%02x%02x%02x%02x ", insn24, insn16, insn8, insn0);
- /* Handle the nop (aseq 0x40,gr1,gr1) specially */
- if ((insn24==0x70) && (insn16==0x40) && (insn8==0x01) && (insn0==0x01)) {
- (*info->fprintf_func) (info->stream,"nop");
- return 4;
- }
+ /* Handle the nop (aseq 0x40,gr1,gr1) specially. */
+ if ( (insn24 == 0x70)
+ && (insn16 == 0x40)
+ && (insn8 == 0x01)
+ && (insn0 == 0x01))
+ {
+ (*info->fprintf_func) (info->stream,"nop");
+ return 4;
+ }
/* The opcode is always in insn24. */
for (opcode = &a29k_opcodes[0];
opcode < &a29k_opcodes[num_opcodes];
++opcode)
{
- if ((insn24<<24) == opcode->opcode)
+ if (((unsigned long) insn24 << 24) == opcode->opcode)
{
char *s;
-
+
(*info->fprintf_func) (info->stream, "%s ", opcode->name);
for (s = opcode->args; *s != '\0'; ++s)
{
case 'a':
print_general (insn8, info);
break;
-
+
case 'b':
print_general (insn0, info);
break;
break;
case 'x':
- (*info->fprintf_func) (info->stream, "0x%x", (insn16 << 8) + insn0);
+ (*info->fprintf_func) (info->stream, "0x%x",
+ (insn16 << 8) + insn0);
break;
case 'h':
/* This used to be %x for binutils. */
(*info->fprintf_func) (info->stream, "0x%x",
- (insn16 << 24) + (insn0 << 16));
+ (insn16 << 24) + (insn0 << 16));
break;
case 'X':
(*info->fprintf_func) (info->stream, "%d",
- ((insn16 << 8) + insn0) | 0xffff0000);
+ ((insn16 << 8) + insn0) | 0xffff0000);
break;
case 'P':
(*info->fprintf_func) (info->stream, "%d", (insn0 >> 4) & 7);
break;
+ case 'I':
+ if ((insn16 & 3) != 0)
+ (*info->fprintf_func) (info->stream, "%d", insn16 & 3);
+ break;
+
case 'd':
(*info->fprintf_func) (info->stream, "%d", (insn0 >> 2) & 3);
break;
break;
case 'F':
- (*info->fprintf_func) (info->stream, "%d", (insn16 >> 2) & 15);
+ (*info->fprintf_func) (info->stream, "%d",
+ (insn16 >> 2) & 15);
break;
case 'C':
int errcode;
char prev_insn[4];
unsigned char prev_insn0, prev_insn8, prev_insn16, prev_insn24;
-
+
errcode = (*info->read_memory_func) (memaddr - 4,
(bfd_byte *) &prev_insn[0],
4,
/* If it is a delayed branch, we need to look at the
instruction before the delayed brach to handle
things like
-
+
const _foo
call _printf
consth _foo
*/
- (*find_byte_func) (prev_insn, &prev_insn0, &prev_insn8,
- &prev_insn16, &prev_insn24);
+ (*find_byte_func) (prev_insn, & prev_insn0, & prev_insn8,
+ & prev_insn16, & prev_insn24);
if (is_delayed_branch (prev_insn24))
{
errcode = (*info->read_memory_func)
- (memaddr - 8, (bfd_byte *) &prev_insn[0], 4, info);
- (*find_byte_func) (prev_insn, &prev_insn0, &prev_insn8,
- &prev_insn16, &prev_insn24);
+ (memaddr - 8, (bfd_byte *) & prev_insn[0], 4, info);
+ (*find_byte_func) (prev_insn, & prev_insn0, & prev_insn8,
+ & prev_insn16, & prev_insn24);
}
}
-
+
/* If there was a problem reading memory, then assume
the previous instruction was not const. */
if (errcode == 0)
}
/* Disassemble an big-endian a29k instruction. */
+
int
-print_insn_big_a29k (memaddr, info)
- bfd_vma memaddr;
- struct disassemble_info *info;
+print_insn_big_a29k (bfd_vma memaddr, struct disassemble_info *info)
{
info->private_data = (PTR) find_bytes_big;
return print_insn (memaddr, info);
}
/* Disassemble a little-endian a29k instruction. */
+
int
-print_insn_little_a29k (memaddr, info)
- bfd_vma memaddr;
- struct disassemble_info *info;
+print_insn_little_a29k (bfd_vma memaddr, struct disassemble_info *info)
{
info->private_data = (PTR) find_bytes_little;
return print_insn (memaddr, info);
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