1 /* Disassemble ft32 instructions.
2 Copyright (C) 2013-2017 Free Software Foundation, Inc.
3 Contributed by FTDI (support@ftdichip.com)
5 This file is part of the GNU opcodes library.
7 This library is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 It is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
27 #include "opcode/ft32.h"
28 #include "disassemble.h"
30 extern const ft32_opc_info_t ft32_opc_info
[128];
32 static fprintf_ftype fpr
;
36 sign_extend(int bit
, int value
)
38 int onebit
= (1 << bit
);
39 return (value
& (onebit
- 1)) - (value
& onebit
);
43 print_insn_ft32 (bfd_vma addr
, struct disassemble_info
*info
)
46 stream
= info
->stream
;
49 const ft32_opc_info_t
*oo
;
51 fpr
= info
->fprintf_func
;
53 if ((status
= info
->read_memory_func (addr
, buffer
, 4, info
)))
56 iword
= bfd_getl32 (buffer
);
58 for (oo
= ft32_opc_info
; oo
->name
; oo
++)
59 if ((iword
& oo
->mask
) == oo
->bits
)
67 fpr (stream
, "%08x %s", iword
, oo
->name
);
70 fpr (stream
, ".%c ", "bsl"[(iword
>> FT32_FLD_DW_BIT
) & 3]);
86 imm
= ((iword
>> FT32_FLD_CB_BIT
) & ((1 << FT32_FLD_CB_SIZ
) - 1)) << 4;
87 imm
|= ((iword
>> FT32_FLD_CV_BIT
) & ((1 << FT32_FLD_CV_SIZ
) - 1));
90 case 0x00: fpr(stream
, "nz"); break;
91 case 0x01: fpr(stream
, "z"); break;
92 case 0x10: fpr(stream
, "ae"); break;
93 case 0x11: fpr(stream
, "b"); break;
94 case 0x20: fpr(stream
, "no"); break;
95 case 0x21: fpr(stream
, "o"); break;
96 case 0x30: fpr(stream
, "ns"); break;
97 case 0x31: fpr(stream
, "s"); break;
98 case 0x40: fpr(stream
, "lt"); break;
99 case 0x41: fpr(stream
, "gte"); break;
100 case 0x50: fpr(stream
, "lte"); break;
101 case 0x51: fpr(stream
, "gt"); break;
102 case 0x60: fpr(stream
, "be"); break;
103 case 0x61: fpr(stream
, "a"); break;
104 default: fpr(stream
, "%d,$r30,%d", (imm
>> 4), (imm
& 1)); break;
108 imm
= (iword
>> FT32_FLD_CB_BIT
) & ((1 << FT32_FLD_CB_SIZ
) - 1);
109 fpr(stream
, "%d", imm
);
112 fpr(stream
, "$r%d", (iword
>> FT32_FLD_R_D_BIT
) & 0x1f);
115 imm
= (iword
>> FT32_FLD_CR_BIT
) & ((1 << FT32_FLD_CR_SIZ
) - 1);
116 fpr(stream
, "$r%d", 28 + imm
);
119 imm
= (iword
>> FT32_FLD_CV_BIT
) & ((1 << FT32_FLD_CV_SIZ
) - 1);
120 fpr(stream
, "%d", imm
);
123 fpr(stream
, "$r%d", (iword
>> FT32_FLD_R_1_BIT
) & 0x1f);
126 imm
= (iword
>> FT32_FLD_RIMM_BIT
) & ((1 << FT32_FLD_RIMM_SIZ
) - 1);
128 fpr(stream
, "%d", sign_extend(9, imm
));
130 fpr(stream
, "$r%d", imm
& 0x1f);
133 fpr(stream
, "$r%d", (iword
>> FT32_FLD_R_2_BIT
) & 0x1f);
136 imm
= iword
& ((1 << FT32_FLD_K20_SIZ
) - 1);
137 fpr(stream
, "%d", sign_extend(19, imm
));
140 imm
= (iword
& ((1 << FT32_FLD_PA_SIZ
) - 1)) << 2;
141 info
->print_address_func ((bfd_vma
) imm
, info
);
144 imm
= iword
& ((1 << FT32_FLD_AA_SIZ
) - 1);
145 info
->print_address_func ((1 << 23) | (bfd_vma
) imm
, info
);
148 imm
= iword
& ((1 << FT32_FLD_K16_SIZ
) - 1);
149 fpr(stream
, "%d", imm
);
152 imm
= iword
& ((1 << FT32_FLD_K8_SIZ
) - 1);
153 fpr(stream
, "%d", sign_extend(7, imm
));
155 case FT32_FLD_R_D_POST
:
156 fpr(stream
, "$r%d", (iword
>> FT32_FLD_R_D_BIT
) & 0x1f);
158 case FT32_FLD_R_1_POST
:
159 fpr(stream
, "$r%d", (iword
>> FT32_FLD_R_1_BIT
) & 0x1f);
174 fpr (stream
, "%08x!", iword
);
180 info
->memory_error_func (status
, addr
, info
);