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authorNick Clifton <nickc@redhat.com>2005-07-01 11:16:33 +0000
committerNick Clifton <nickc@redhat.com>2005-07-01 11:16:33 +0000
commit47b0e7ad8c60ea4b45b22ad5cb376f068991bc88 (patch)
treebb27e86679b3604624116e9a81be6bb3bd7353f2 /opcodes/d30v-dis.c
parente4e8248d79d8461adf8b0cf22086e85a4c9ee0a4 (diff)
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Update function declarations to ISO C90 formatting
Diffstat (limited to 'opcodes/d30v-dis.c')
-rw-r--r--opcodes/d30v-dis.c244
1 files changed, 116 insertions, 128 deletions
diff --git a/opcodes/d30v-dis.c b/opcodes/d30v-dis.c
index d286e7b..c7385d9 100644
--- a/opcodes/d30v-dis.c
+++ b/opcodes/d30v-dis.c
@@ -1,19 +1,20 @@
/* Disassemble D30V instructions.
- Copyright 1997, 1998, 2000, 2001 Free Software Foundation, Inc.
+ Copyright 1997, 1998, 2000, 2001, 2005 Free Software Foundation, Inc.
-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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, 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 <stdio.h>
#include "sysdep.h"
@@ -23,100 +24,12 @@ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
#define PC_MASK 0xFFFFFFFF
-static int lookup_opcode PARAMS ((struct d30v_insn *insn, long num, int is_long));
-static void print_insn PARAMS ((struct disassemble_info *info, bfd_vma memaddr, long long num,
- struct d30v_insn *insn, int is_long, int show_ext));
-static int extract_value PARAMS ((long long num, struct d30v_operand *oper, int is_long));
-
-int
-print_insn_d30v (memaddr, info)
- bfd_vma memaddr;
- struct disassemble_info *info;
-{
- int status, result;
- bfd_byte buffer[12];
- unsigned long in1, in2;
- struct d30v_insn insn;
- long long num;
-
- insn.form = (struct d30v_format *) NULL;
-
- info->bytes_per_line = 8;
- info->bytes_per_chunk = 4;
- info->display_endian = BFD_ENDIAN_BIG;
-
- status = (*info->read_memory_func) (memaddr, buffer, 4, info);
- if (status != 0)
- {
- (*info->memory_error_func) (status, memaddr, info);
- return -1;
- }
- in1 = bfd_getb32 (buffer);
-
- status = (*info->read_memory_func) (memaddr + 4, buffer, 4, info);
- if (status != 0)
- {
- info->bytes_per_line = 8;
- if (!(result = lookup_opcode (&insn, in1, 0)))
- (*info->fprintf_func) (info->stream, ".long\t0x%x", in1);
- else
- print_insn (info, memaddr, (long long) in1, &insn, 0, result);
- return 4;
- }
- in2 = bfd_getb32 (buffer);
-
- if (in1 & in2 & FM01)
- {
- /* LONG instruction. */
- if (!(result = lookup_opcode (&insn, in1, 1)))
- {
- (*info->fprintf_func) (info->stream, ".long\t0x%x,0x%x", in1, in2);
- return 8;
- }
- num = (long long) in1 << 32 | in2;
- print_insn (info, memaddr, num, &insn, 1, result);
- }
- else
- {
- num = in1;
- if (!(result = lookup_opcode (&insn, in1, 0)))
- (*info->fprintf_func) (info->stream, ".long\t0x%x", in1);
- else
- print_insn (info, memaddr, num, &insn, 0, result);
-
- switch (((in1 >> 31) << 1) | (in2 >> 31))
- {
- case 0:
- (*info->fprintf_func) (info->stream, "\t||\t");
- break;
- case 1:
- (*info->fprintf_func) (info->stream, "\t->\t");
- break;
- case 2:
- (*info->fprintf_func) (info->stream, "\t<-\t");
- default:
- break;
- }
-
- insn.form = (struct d30v_format *) NULL;
- num = in2;
- if (!(result = lookup_opcode (&insn, in2, 0)))
- (*info->fprintf_func) (info->stream, ".long\t0x%x", in2);
- else
- print_insn (info, memaddr, num, &insn, 0, result);
- }
- return 8;
-}
-
/* Return 0 if lookup fails,
1 if found and only one form,
2 if found and there are short and long forms. */
static int
-lookup_opcode (insn, num, is_long)
- struct d30v_insn *insn;
- long num;
- int is_long;
+lookup_opcode (struct d30v_insn *insn, long num, int is_long)
{
int i = 0, index;
struct d30v_format *f;
@@ -173,14 +86,39 @@ lookup_opcode (insn, num, is_long)
return 1;
}
+static int
+extract_value (long long num, struct d30v_operand *oper, int is_long)
+{
+ int val;
+ int shift = 12 - oper->position;
+ int mask = (0xFFFFFFFF >> (32 - oper->bits));
+
+ if (is_long)
+ {
+ if (oper->bits == 32)
+ /* Piece together 32-bit constant. */
+ val = ((num & 0x3FFFF)
+ | ((num & 0xFF00000) >> 2)
+ | ((num & 0x3F00000000LL) >> 6));
+ else
+ val = (num >> (32 + shift)) & mask;
+ }
+ else
+ val = (num >> shift) & mask;
+
+ if (oper->flags & OPERAND_SHIFT)
+ val <<= 3;
+
+ return val;
+}
+
static void
-print_insn (info, memaddr, num, insn, is_long, show_ext)
- struct disassemble_info *info;
- bfd_vma memaddr;
- long long num;
- struct d30v_insn *insn;
- int is_long;
- int show_ext;
+print_insn (struct disassemble_info *info,
+ bfd_vma memaddr,
+ long long num,
+ struct d30v_insn *insn,
+ int is_long,
+ int show_ext)
{
int val, opnum, need_comma = 0;
struct d30v_operand *oper;
@@ -216,6 +154,7 @@ print_insn (info, memaddr, num, insn, is_long, show_ext)
while ((opnum = insn->form->operands[opind++]) != 0)
{
int bits;
+
oper = (struct d30v_operand *) &d30v_operand_table[opnum];
bits = oper->bits;
if (oper->flags & OPERAND_SHIFT)
@@ -269,6 +208,7 @@ print_insn (info, memaddr, num, insn, is_long, show_ext)
struct d30v_operand *oper3 =
(struct d30v_operand *) &d30v_operand_table[insn->form->operands[2]];
int id = extract_value (num, oper3, is_long);
+
found_control = 1;
switch (id)
{
@@ -357,6 +297,7 @@ print_insn (info, memaddr, num, insn, is_long, show_ext)
if (oper->flags & OPERAND_SIGNED)
{
int max = (1 << (bits - 1));
+
if (val & max)
{
val = -val;
@@ -375,33 +316,80 @@ print_insn (info, memaddr, num, insn, is_long, show_ext)
(*info->fprintf_func) (info->stream, ")");
}
-static int
-extract_value (num, oper, is_long)
- long long num;
- struct d30v_operand *oper;
- int is_long;
+int
+print_insn_d30v (bfd_vma memaddr, struct disassemble_info *info)
{
- int val;
- int shift = 12 - oper->position;
- int mask = (0xFFFFFFFF >> (32 - oper->bits));
+ int status, result;
+ bfd_byte buffer[12];
+ unsigned long in1, in2;
+ struct d30v_insn insn;
+ long long num;
- if (is_long)
+ insn.form = NULL;
+
+ info->bytes_per_line = 8;
+ info->bytes_per_chunk = 4;
+ info->display_endian = BFD_ENDIAN_BIG;
+
+ status = (*info->read_memory_func) (memaddr, buffer, 4, info);
+ if (status != 0)
{
- if (oper->bits == 32)
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ in1 = bfd_getb32 (buffer);
+
+ status = (*info->read_memory_func) (memaddr + 4, buffer, 4, info);
+ if (status != 0)
+ {
+ info->bytes_per_line = 8;
+ if (!(result = lookup_opcode (&insn, in1, 0)))
+ (*info->fprintf_func) (info->stream, ".long\t0x%x", in1);
+ else
+ print_insn (info, memaddr, (long long) in1, &insn, 0, result);
+ return 4;
+ }
+ in2 = bfd_getb32 (buffer);
+
+ if (in1 & in2 & FM01)
+ {
+ /* LONG instruction. */
+ if (!(result = lookup_opcode (&insn, in1, 1)))
{
- /* Piece together 32-bit constant. */
- val = ((num & 0x3FFFF)
- | ((num & 0xFF00000) >> 2)
- | ((num & 0x3F00000000LL) >> 6));
+ (*info->fprintf_func) (info->stream, ".long\t0x%x,0x%x", in1, in2);
+ return 8;
}
- else
- val = (num >> (32 + shift)) & mask;
+ num = (long long) in1 << 32 | in2;
+ print_insn (info, memaddr, num, &insn, 1, result);
}
else
- val = (num >> shift) & mask;
+ {
+ num = in1;
+ if (!(result = lookup_opcode (&insn, in1, 0)))
+ (*info->fprintf_func) (info->stream, ".long\t0x%x", in1);
+ else
+ print_insn (info, memaddr, num, &insn, 0, result);
- if (oper->flags & OPERAND_SHIFT)
- val <<= 3;
+ switch (((in1 >> 31) << 1) | (in2 >> 31))
+ {
+ case 0:
+ (*info->fprintf_func) (info->stream, "\t||\t");
+ break;
+ case 1:
+ (*info->fprintf_func) (info->stream, "\t->\t");
+ break;
+ case 2:
+ (*info->fprintf_func) (info->stream, "\t<-\t");
+ default:
+ break;
+ }
- return val;
+ insn.form = NULL;
+ num = in2;
+ if (!(result = lookup_opcode (&insn, in2, 0)))
+ (*info->fprintf_func) (info->stream, ".long\t0x%x", in2);
+ else
+ print_insn (info, memaddr, num, &insn, 0, result);
+ }
+ return 8;
}