1 /* Disassemble V850 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. */
22 #include "opcode/v850.h"
25 static const char *const v850_reg_names
[] =
26 { "r0", "r1", "r2", "sp", "gp", "r5", "r6", "r7",
27 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
28 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
29 "r24", "r25", "r26", "r27", "r28", "r29", "ep", "r31" };
31 static const char *const v850_sreg_names
[] =
32 { "eipc", "eipsw", "fepc", "fepsw", "ecr", "psw", "sr6", "sr7",
33 "sr8", "sr9", "sr10", "sr11", "sr12", "sr13", "sr14", "sr15",
34 "sr16", "sr17", "sr18", "sr19", "sr20", "sr21", "sr22", "sr23",
35 "sr24", "sr25", "sr26", "sr27", "sr28", "sr29", "sr30", "sr31" };
37 static const char *const v850_cc_names
[] =
38 { "v", "c/l", "z", "nh", "s/n", "t", "lt", "le",
39 "nv", "nc/nl", "nz", "h", "ns/p", "sa", "lt", "ge",
43 print_insn_v850 (memaddr
, info
)
45 struct disassemble_info
*info
;
51 status
= (*info
->read_memory_func
) (memaddr
, buffer
, 4, info
);
54 (*info
->memory_error_func
) (status
, memaddr
, info
);
57 insn
= bfd_getl32 (buffer
);
59 disassemble (insn
, info
);
60 if ((insn
& 0x0600) == 0x0600)
66 disassemble (insn
, info
)
68 struct disassemble_info
*info
;
70 struct v850_opcode
*op
= (struct v850_opcode
*)v850_opcodes
;
71 const struct v850_operand
*operand
;
73 /* If this is a two byte insn, then mask off the high bits. */
74 if ((insn
& 0x0600) != 0x0600)
77 /* Find the opcode. */
80 if ((op
->mask
& insn
) == op
->opcode
)
82 const unsigned char *opindex_ptr
;
85 (*info
->fprintf_func
) (info
->stream
, "%s\t", op
->name
);
87 /* Now print the operands. */
88 for (opindex_ptr
= op
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
92 operand
= &v850_operands
[*opindex_ptr
];
95 value
= (operand
->extract
) (insn
, 0);
97 value
= (insn
>> operand
->shift
) & ((1 << operand
->bits
) - 1);
99 if ((operand
->flags
& V850_OPERAND_SIGNED
) != 0)
100 value
= ((signed long)(value
<< (32 - operand
->bits
))
101 >> (32 - operand
->bits
));
102 if ((operand
->flags
& V850_OPERAND_REG
) != 0)
103 (*info
->fprintf_func
) (info
->stream
, "%s",
104 v850_reg_names
[value
]);
105 else if ((operand
->flags
& V850_OPERAND_SRG
) != 0)
106 (*info
->fprintf_func
) (info
->stream
, "%s",
107 v850_sreg_names
[value
]);
108 else if ((operand
->flags
& V850_OPERAND_CC
) != 0)
109 (*info
->fprintf_func
) (info
->stream
, "%s",
110 v850_cc_names
[value
]);
111 else if ((operand
->flags
& V850_OPERAND_EP
) != 0)
112 (*info
->fprintf_func
) (info
->stream
, "ep");
114 (*info
->fprintf_func
) (info
->stream
, "%d", value
);
125 if ((insn
& 0x0600) != 0x0600)
126 (*info
->fprintf_func
) (info
->stream
, ".short\t0x%04x", insn
);
128 (*info
->fprintf_func
) (info
->stream
, ".long\t0x%08x", insn
);
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