1 /* Disassemble D10V instructions.
2 Copyright (C) 1996 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21 #include "opcode/d10v.h"
24 static void dis_2_short
PARAMS ((unsigned long insn
, char *str
, int order
));
25 static void dis_long
PARAMS ((unsigned long insn
, char *str
));
28 print_insn_d10v (memaddr
, info
)
30 struct disassemble_info
*info
;
37 strcpy (str
, "unknown");
39 status
= (*info
->read_memory_func
) (memaddr
, buffer
, 4, info
);
42 (*info
->memory_error_func
) (status
, memaddr
, info
);
45 insn
= bfd_getb32 (buffer
);
50 dis_2_short (insn
, str
, 2);
53 dis_2_short (insn
, str
, 0);
56 dis_2_short (insn
, str
, 1);
62 (*info
->fprintf_func
) (info
->stream
, "\t%s", str
, insn
);
67 print_operand (buf
, oper
, insn
, op
)
69 struct d10v_operand
*oper
;
71 struct d10v_opcode
*op
;
75 if (oper
->flags
== OPERAND_ATMINUS
)
80 if (oper
->flags
== OPERAND_MINUS
)
85 if (oper
->flags
== OPERAND_PLUS
)
90 if (oper
->flags
== OPERAND_ATSIGN
)
95 if (oper
->flags
== OPERAND_ATPAR
)
103 /* the LONG_L format shifts registers over by 15 */
104 if (op
->format
== LONG_L
&& (oper
->flags
& OPERAND_REG
))
107 num
= (insn
>> shift
) & (0x7FFFFFFF >> (31 - oper
->bits
));
109 if (oper
->flags
& OPERAND_ACC
)
111 else if (oper
->flags
& OPERAND_CONTROL
)
116 else if(oper
->flags
& OPERAND_REG
)
119 if (oper
->flags
& OPERAND_REG
)
120 sprintf (buf
, "%d", num
);
122 sprintf (buf
, "0x%x", num
);
133 struct d10v_opcode
*op
= (struct d10v_opcode
*)d10v_opcodes
;
134 struct d10v_operand
*oper
;
139 if ((op
->format
& LONG_OPCODE
) && ((op
->mask
& insn
) == op
->opcode
))
141 strcpy (str
, op
->name
);
143 for ( i
=0; op
->operands
[i
]; i
++)
145 oper
= (struct d10v_operand
*)&d10v_operands
[op
->operands
[i
]];
146 if (oper
->flags
== OPERAND_ATPAR
)
148 print_operand (buf
, oper
, insn
, op
);
150 if (op
->operands
[i
+1] && oper
->bits
&&
151 d10v_operands
[op
->operands
[i
+1]].flags
!= OPERAND_PLUS
&&
152 d10v_operands
[op
->operands
[i
+1]].flags
!= OPERAND_MINUS
)
164 dis_2_short (insn
, str
, order
)
172 struct d10v_opcode
*op
;
174 int match
, num_match
=0;
175 struct d10v_operand
*oper
;
178 ins
[0] = (insn
& 0x3FFFFFFF) >> 15;
179 ins
[1] = insn
& 0x00007FFF;
185 op
= (struct d10v_opcode
*)d10v_opcodes
;
189 if ((op
->format
& SHORT_OPCODE
) && ((op
->mask
& ins
[j
]) == op
->opcode
))
191 strcat (str
, op
->name
);
193 for (i
=0; op
->operands
[i
]; i
++)
195 oper
= (struct d10v_operand
*)&d10v_operands
[op
->operands
[i
]];
196 if (oper
->flags
== OPERAND_ATPAR
)
198 print_operand (buf
, oper
, ins
[j
], op
);
200 if (op
->operands
[i
+1] && oper
->bits
&&
201 d10v_operands
[op
->operands
[i
+1]].flags
!= OPERAND_PLUS
&&
202 d10v_operands
[op
->operands
[i
+1]].flags
!= OPERAND_MINUS
)
212 strcat (str
, "unknown");
217 strcat ( str
, "\t->\t");
221 strcat (str
, "\t<-\t");
225 strcat (str
, "\t||\t");
234 sprintf (str
, ".long\t0x%08x", insn
);
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