1 /* Disassemble ft32 instructions.
2 Copyright (C) 2013-2022 Free Software Foundation, Inc.
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 ft32_opcode1 (unsigned int iword,
44 struct disassemble_info *info)
46 const ft32_opc_info_t *oo;
48 for (oo = ft32_opc_info; oo->name; oo++)
49 if ((iword & oo->mask) == oo->bits)
57 fpr (stream, "%s", oo->name);
59 fpr (stream, ".%c ", "bsl"[(iword >> FT32_FLD_DW_BIT) & 3]);
72 imm = ((iword >> FT32_FLD_CB_BIT) & ((1 << FT32_FLD_CB_SIZ) - 1)) << 4;
73 imm |= ((iword >> FT32_FLD_CV_BIT) & ((1 << FT32_FLD_CV_SIZ) - 1));
76 case 0x00: fpr (stream, "nz"); break;
77 case 0x01: fpr (stream, "z"); break;
78 case 0x10: fpr (stream, "ae"); break;
79 case 0x11: fpr (stream, "b"); break;
80 case 0x20: fpr (stream, "no"); break;
81 case 0x21: fpr (stream, "o"); break;
82 case 0x30: fpr (stream, "ns"); break;
83 case 0x31: fpr (stream, "s"); break;
84 case 0x40: fpr (stream, "lt"); break;
85 case 0x41: fpr (stream, "gte"); break;
86 case 0x50: fpr (stream, "lte"); break;
87 case 0x51: fpr (stream, "gt"); break;
88 case 0x60: fpr (stream, "be"); break;
89 case 0x61: fpr (stream, "a"); break;
91 fpr (stream, "%d,$r30,%d", (imm >> 4), (imm & 1));
96 imm = (iword >> FT32_FLD_CB_BIT) & ((1 << FT32_FLD_CB_SIZ) - 1);
97 fpr (stream, "%d", imm);
100 fpr (stream, "$r%d", (iword >> FT32_FLD_R_D_BIT) & 0x1f);
103 imm = (iword >> FT32_FLD_CR_BIT) & ((1 << FT32_FLD_CR_SIZ) - 1);
104 fpr (stream, "$r%d", 28 + imm);
107 imm = (iword >> FT32_FLD_CV_BIT) & ((1 << FT32_FLD_CV_SIZ) - 1);
108 fpr (stream, "%d", imm);
111 fpr (stream, "$r%d", (iword >> FT32_FLD_R_1_BIT) & 0x1f);
114 imm = (iword >> FT32_FLD_RIMM_BIT) & ((1 << FT32_FLD_RIMM_SIZ) - 1);
116 fpr (stream, "%d", sign_extend (9, imm));
118 fpr (stream, "$r%d", imm & 0x1f);
121 fpr (stream, "$r%d", (iword >> FT32_FLD_R_2_BIT) & 0x1f);
124 imm = iword & ((1 << FT32_FLD_K20_SIZ) - 1);
125 fpr (stream, "%d", sign_extend (19, imm));
128 imm = (iword & ((1 << FT32_FLD_PA_SIZ) - 1)) << 2;
129 info->print_address_func ((bfd_vma) imm, info);
132 imm = iword & ((1 << FT32_FLD_AA_SIZ) - 1);
133 info->print_address_func ((1 << 23) | (bfd_vma) imm, info);
136 imm = iword & ((1 << FT32_FLD_K16_SIZ) - 1);
137 fpr (stream, "%d", imm);
140 imm = iword & ((1 << FT32_FLD_K15_SIZ) - 1);
141 fpr (stream, "%d", sign_extend (14, imm));
143 case FT32_FLD_R_D_POST:
144 fpr (stream, "$r%d", (iword >> FT32_FLD_R_D_BIT) & 0x1f);
146 case FT32_FLD_R_1_POST:
147 fpr (stream, "$r%d", (iword >> FT32_FLD_R_1_BIT) & 0x1f);
163 ft32_opcode (bfd_vma addr ATTRIBUTE_UNUSED,
165 struct disassemble_info *info)
168 if (ft32_decode_shortcode ((unsigned int) addr, iword, sc))
170 ft32_opcode1 (sc[0], info);
172 ft32_opcode1 (sc[1], info);
175 ft32_opcode1 (iword, info);
179 print_insn_ft32 (bfd_vma addr, struct disassemble_info *info)
182 stream = info->stream;
186 fpr = info->fprintf_func;
188 if ((status = info->read_memory_func (addr, buffer, 4, info)))
191 iword = bfd_getl32 (buffer);
193 fpr (stream, "%08x ", iword);
195 ft32_opcode (addr, iword, info);
200 info->memory_error_func (status, addr, info);