-/* Disassemble Motorolla M*Core instructions.
- Copyright (C) 1993, 1999 Free Software Foundation, Inc.
+/* Disassemble Motorola M*Core instructions.
+ Copyright 1993, 1999, 2000 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
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. */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+#include "sysdep.h"
#include <stdio.h>
#define STATIC_TABLE
#define DEFINE_TABLE
/* O0 */ 0xFFFF,
/* OT */ 0xFFFC,
/* O1 */ 0xFFF0,
- /* OC */ 0xFFE0,
+ /* OC */ 0xFE00,
/* O2 */ 0xFF00,
/* X1 */ 0xFFF0,
/* OI */ 0xFE00,
/* OMc */ 0xFF00,
/* SIa */ 0xFE00,
+ /* MULSH */ 0xFF00,
+ /* OPSR */ 0xFFF8, /* psrset/psrclr */
/* JC */ 0, /* JC,JU,JL don't appear in object */
/* JU */ 0,
mcore_opcode_info * op;
int status;
+ info->bytes_per_chunk = 2;
+
status = info->read_memory_func (memaddr, ibytes, 2, info);
if (status != 0)
return -1;
}
- inst = (ibytes[0] << 8) | ibytes[1];
+ if (info->endian == BFD_ENDIAN_BIG)
+ inst = (ibytes[0] << 8) | ibytes[1];
+ else if (info->endian == BFD_ENDIAN_LITTLE)
+ inst = (ibytes[1] << 8) | ibytes[0];
+ else
+ abort ();
/* Just a linear search of the table. */
for (op = mcore_table; op->name != 0; op ++)
- {
- if (op->inst == (inst & imsk[op->opclass]))
- break;
- }
+ if (op->inst == (inst & imsk[op->opclass]))
+ break;
if (op->name == 0)
- fprintf (stream, ".word 0x%04x", inst);
+ fprintf (stream, ".short 0x%04x", inst);
else
{
const char * name = grname[inst & 0x0F];
case JSR: fprintf (stream, "\t%s", name); break;
case OC: fprintf (stream, "\t%s, %s", name, crname[(inst >> 4) & 0x1F]); break;
case O1R1: fprintf (stream, "\t%s, r1", name); break;
+ case MULSH:
case O2: fprintf (stream, "\t%s, %s", name, grname[(inst >> 4) & 0xF]); break;
case X1: fprintf (stream, "\tr1, %s", name); break;
case OI: fprintf (stream, "\t%s, %d", name, ((inst >> 4) & 0x1F) + 1); break;
if (strcmp (op->name, "bsr") == 0)
{
- /* for bsr, we'll try to get a symbol for the target */
+ /* For bsr, we'll try to get a symbol for the target. */
val = memaddr + 2 + (val << 1);
if (info->print_address_func && val != 0)
if (status != 0)
{
info->memory_error_func (status, memaddr, info);
- return -1;
+ break;
}
- val = (ibytes[0] << 24) | (ibytes[1] << 16)
- | (ibytes[2] << 8) | (ibytes[3]);
+ if (info->endian == BFD_ENDIAN_LITTLE)
+ val = (ibytes[3] << 24) | (ibytes[2] << 16)
+ | (ibytes[1] << 8) | (ibytes[0]);
+ else
+ val = (ibytes[0] << 24) | (ibytes[1] << 16)
+ | (ibytes[2] << 8) | (ibytes[3]);
/* Removed [] around literal value to match ABI syntax 12/95. */
fprintf (stream, "\t%s, 0x%X", grname[(inst >> 8) & 0xF], val);
if (status != 0)
{
info->memory_error_func (status, memaddr, info);
- return -1;
+ break;
}
-
- val = (ibytes[0] << 24) | (ibytes[1] << 16)
- | (ibytes[2] << 8) | (ibytes[3]);
+
+ if (info->endian == BFD_ENDIAN_LITTLE)
+ val = (ibytes[3] << 24) | (ibytes[2] << 16)
+ | (ibytes[1] << 8) | (ibytes[0]);
+ else
+ val = (ibytes[0] << 24) | (ibytes[1] << 16)
+ | (ibytes[2] << 8) | (ibytes[3]);
/* Removed [] around literal value to match ABI syntax 12/95. */
fprintf (stream, "\t0x%X", val);
}
break;
+ case OPSR:
+ {
+ static char * fields[] =
+ {
+ "af", "ie", "fe", "fe,ie",
+ "ee", "ee,ie", "ee,fe", "ee,fe,ie"
+ };
+
+ fprintf (stream, "\t%s", fields[inst & 0x7]);
+ }
+ break;
+
default:
- /* if the disassembler lags the instruction set */
+ /* If the disassembler lags the instruction set. */
fprintf (stream, "\tundecoded operands, inst is 0x%04x", inst);
break;
}
}
- /* Say how many bytes we consumed? */
+ /* Say how many bytes we consumed. */
return 2;
}