1 /* Disassemble SH instructions.
2 Copyright (C) 1993, 94, 95, 96, 1997 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. */
28 print_insn_shx (memaddr
, info
)
30 struct disassemble_info
*info
;
32 fprintf_ftype fprintf_fn
= info
->fprintf_func
;
33 void *stream
= info
->stream
;
34 unsigned char insn
[2];
35 unsigned char nibs
[4];
40 status
= info
->read_memory_func (memaddr
, insn
, 2, info
);
44 info
->memory_error_func (status
, memaddr
, info
);
48 if (info
->flags
& LITTLE_BIT
)
50 nibs
[0] = (insn
[1] >> 4) & 0xf;
51 nibs
[1] = insn
[1] & 0xf;
53 nibs
[2] = (insn
[0] >> 4) & 0xf;
54 nibs
[3] = insn
[0] & 0xf;
58 nibs
[0] = (insn
[0] >> 4) & 0xf;
59 nibs
[1] = insn
[0] & 0xf;
61 nibs
[2] = (insn
[1] >> 4) & 0xf;
62 nibs
[3] = insn
[1] & 0xf;
65 for (op
= sh_table
; op
->name
; op
++)
73 for (n
= 0; n
< 4; n
++)
75 int i
= op
->nibbles
[n
];
86 imm
= (nibs
[2] << 4) | (nibs
[3]);
89 imm
= ((char)imm
) * 2 + 4 ;
92 imm
= ((nibs
[1]) << 8) | (nibs
[2] << 4) | (nibs
[3]);
107 imm
= (nibs
[2] << 4) | nibs
[3];
110 imm
= ((nibs
[2] << 4) | nibs
[3]) <<1;
114 imm
= ((nibs
[2] << 4) | nibs
[3]) <<2;
118 imm
= ((nibs
[2] << 4) | nibs
[3]) <<1;
121 imm
= ((nibs
[2] << 4) | nibs
[3]) <<2;
124 imm
= (nibs
[2] << 4) | (nibs
[3]);
144 fprintf_fn (stream
,"%s\t", op
->name
);
145 for (n
= 0; n
< 3 && op
->arg
[n
] != A_END
; n
++)
147 if (n
&& op
->arg
[1] != A_END
)
148 fprintf_fn (stream
, ",");
152 fprintf_fn (stream
, "#%d", (char)(imm
));
155 fprintf_fn (stream
, "r0");
158 fprintf_fn (stream
, "r%d", rn
);
161 fprintf_fn (stream
, "@r%d+", rn
);
164 fprintf_fn (stream
, "@-r%d", rn
);
167 fprintf_fn (stream
, "@r%d", rn
);
170 fprintf_fn (stream
, "@(%d,r%d)", imm
, rn
);
173 fprintf_fn (stream
, "r%d", rm
);
176 fprintf_fn (stream
, "@r%d+", rm
);
179 fprintf_fn (stream
, "@-r%d", rm
);
182 fprintf_fn (stream
, "@r%d", rm
);
185 fprintf_fn (stream
, "@(%d,r%d)", imm
, rm
);
188 fprintf_fn (stream
, "r%d_bank", rb
);
191 fprintf_fn (stream
, "0x%0x", imm
+ 4 + (memaddr
& relmask
));
194 fprintf_fn (stream
, "@(r0,r%d)", rn
);
197 fprintf_fn (stream
, "@(r0,r%d)", rm
);
200 fprintf_fn (stream
, "@(%d,gbr)",imm
);
203 fprintf_fn (stream
, "@(r0,gbr)");
207 (*info
->print_address_func
) (imm
+ memaddr
, info
);
210 fprintf_fn (stream
, "sr");
213 fprintf_fn (stream
, "gbr");
216 fprintf_fn (stream
, "vbr");
219 fprintf_fn (stream
, "ssr");
222 fprintf_fn (stream
, "spc");
225 fprintf_fn (stream
, "mach");
228 fprintf_fn (stream
,"macl");
231 fprintf_fn (stream
, "pr");
234 fprintf_fn (stream
, "fr%d", rn
);
237 fprintf_fn (stream
, "fr%d", rm
);
241 fprintf_fn (stream
, "fpscr");
245 fprintf_fn (stream
, "fpul");
248 fprintf_fn (stream
, "fr0");
256 if (!(info
->flags
& 1)
257 && (op
->name
[0] == 'j'
258 || (op
->name
[0] == 'b'
259 && (op
->name
[1] == 'r'
260 || op
->name
[1] == 's'))
261 || (op
->name
[0] == 'r' && op
->name
[1] == 't')
262 || (op
->name
[0] == 'b' && op
->name
[2] == '.')))
265 fprintf_fn (stream
, "\t(slot ");
266 print_insn_shx (memaddr
+ 2, info
);
268 fprintf_fn (stream
, ")");
277 fprintf_fn (stream
, ".word 0x%x%x%x%x", nibs
[0], nibs
[1], nibs
[2], nibs
[3]);
282 print_insn_shl (memaddr
, info
)
284 struct disassemble_info
*info
;
288 info
->flags
= LITTLE_BIT
;
289 r
= print_insn_shx (memaddr
, info
);
294 print_insn_sh (memaddr
, info
)
296 struct disassemble_info
*info
;
301 r
= print_insn_shx (memaddr
, info
);
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