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authorJeff Law <law@redhat.com>1996-08-31 19:22:11 +0000
committerJeff Law <law@redhat.com>1996-08-31 19:22:11 +0000
commit529418ddc475e8e16b487b85e12a81c16abd12d0 (patch)
tree953c170ee13b221a3e417e63dc5f6a44417f660f /opcodes
parentba39d3dde1601a98887020c8bf1eeaf20c5e8709 (diff)
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* v850-dis.c: New file. Skeleton for disassembler support.
* Makefile.in Remove v850 references, they're not needed here and they weren't being sanitized away. * configure.in: Add v850-dis.o when building v850 toolchains. * configure: Rebuilt. * disassemble.c (disassembler): Call v850 disassembler.
Diffstat (limited to 'opcodes')
-rw-r--r--opcodes/v850-dis.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/opcodes/v850-dis.c b/opcodes/v850-dis.c
new file mode 100644
index 0000000..3ee3959
--- /dev/null
+++ b/opcodes/v850-dis.c
@@ -0,0 +1,78 @@
+/* Disassemble V850 instructions.
+ Copyright (C) 1996 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 distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+
+#include <stdio.h>
+
+#include "ansidecl.h"
+#include "opcode/v850.h"
+#include "dis-asm.h"
+
+int
+print_insn_v850 (memaddr, info)
+ bfd_vma memaddr;
+ struct disassemble_info *info;
+{
+ int status;
+ bfd_byte buffer[4];
+ unsigned long insn;
+
+ status = (*info->read_memory_func) (memaddr, buffer, 4, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ insn = bfd_getl32 (buffer);
+
+ disassemble (insn, info);
+ if ((insn & 0x0600) == 0x0600)
+ return 4;
+ else
+ return 2;
+}
+
+disassemble (insn, info)
+ unsigned long insn;
+ struct disassemble_info *info;
+{
+ struct v850_opcode *op = (struct v850_opcode *)v850_opcodes;
+ int match = 0;
+ /* If this is a two byte insn, then mask off the high bits. */
+ if ((insn & 0x0600) != 0x0600)
+ insn &= 0xffff;
+
+ /* Find the opcode. */
+ while (op->name)
+ {
+ if ((op->mask & insn) == op->opcode)
+ {
+ match = 1;
+ (*info->fprintf_func) (info->stream, "%s\t", op->name);
+ break;
+ }
+ op++;
+ }
+
+ if (!match)
+ {
+ if ((insn & 0x0600) != 0x0600)
+ (*info->fprintf_func) (info->stream, ".short\t0x%04x", insn);
+ else
+ (*info->fprintf_func) (info->stream, ".long\t0x%08x", insn);
+ }
+}