| 1 | /* Disassembler code for Renesas RX. |
| 2 | Copyright 2008, 2009 Free Software Foundation, Inc. |
| 3 | Contributed by Red Hat. |
| 4 | Written by DJ Delorie. |
| 5 | |
| 6 | This file is part of the GNU opcodes library. |
| 7 | |
| 8 | This library is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 3, or (at your option) |
| 11 | any later version. |
| 12 | |
| 13 | It is distributed in the hope that it will be useful, but WITHOUT |
| 14 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| 15 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public |
| 16 | License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 21 | MA 02110-1301, USA. */ |
| 22 | |
| 23 | #include <stdio.h> |
| 24 | |
| 25 | #include "bfd.h" |
| 26 | #include "dis-asm.h" |
| 27 | #include "opcode/rx.h" |
| 28 | |
| 29 | typedef struct |
| 30 | { |
| 31 | bfd_vma pc; |
| 32 | disassemble_info * dis; |
| 33 | } RX_Data; |
| 34 | |
| 35 | static int |
| 36 | rx_get_byte (void * vdata) |
| 37 | { |
| 38 | bfd_byte buf[1]; |
| 39 | RX_Data *rx_data = (RX_Data *) vdata; |
| 40 | |
| 41 | rx_data->dis->read_memory_func (rx_data->pc, |
| 42 | buf, |
| 43 | 1, |
| 44 | rx_data->dis); |
| 45 | |
| 46 | rx_data->pc ++; |
| 47 | return buf[0]; |
| 48 | } |
| 49 | |
| 50 | static char const * size_names[] = |
| 51 | { |
| 52 | "", ".b", ".ub", ".b", ".w", ".uw", ".w", ".a", ".l" |
| 53 | }; |
| 54 | |
| 55 | static char const * opsize_names[] = |
| 56 | { |
| 57 | "", ".b", ".b", ".b", ".w", ".w", ".w", ".a", ".l" |
| 58 | }; |
| 59 | |
| 60 | static char const * register_names[] = |
| 61 | { |
| 62 | /* general registers */ |
| 63 | "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", |
| 64 | "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", |
| 65 | /* control register */ |
| 66 | "psw", "pc", "usp", "fpsw", "", "", "", "wr", |
| 67 | "bpsw", "bpc", "isp", "fintv", "intb", "", "", "", |
| 68 | "pbp", "pben", "", "", "", "", "", "", |
| 69 | "bbpsw", "bbpc", "", "", "", "", "", "" |
| 70 | }; |
| 71 | |
| 72 | static char const * condition_names[] = |
| 73 | { |
| 74 | /* condition codes */ |
| 75 | "eq", "ne", "c", "nc", "gtu", "leu", "pz", "n", |
| 76 | "ge", "lt", "gt", "le", "o", "no", "always", "never" |
| 77 | }; |
| 78 | |
| 79 | static const char * flag_names[] = |
| 80 | { |
| 81 | "c", "z", "s", "o", "", "", "", "", |
| 82 | "", "", "", "", "", "", "", "", |
| 83 | "i", "u", "", "", "", "", "", "" |
| 84 | "", "", "", "", "", "", "", "", |
| 85 | }; |
| 86 | |
| 87 | int |
| 88 | print_insn_rx (bfd_vma addr, disassemble_info * dis) |
| 89 | { |
| 90 | int rv; |
| 91 | RX_Data rx_data; |
| 92 | RX_Opcode_Decoded opcode; |
| 93 | const char * s; |
| 94 | |
| 95 | rx_data.pc = addr; |
| 96 | rx_data.dis = dis; |
| 97 | |
| 98 | rv = rx_decode_opcode (addr, &opcode, rx_get_byte, &rx_data); |
| 99 | |
| 100 | dis->bytes_per_line = 10; |
| 101 | |
| 102 | #define PR (dis->fprintf_func) |
| 103 | #define PS (dis->stream) |
| 104 | #define PC(c) PR (PS, "%c", c) |
| 105 | |
| 106 | for (s = opcode.syntax; *s; s++) |
| 107 | { |
| 108 | if (*s != '%') |
| 109 | { |
| 110 | PC (*s); |
| 111 | } |
| 112 | else |
| 113 | { |
| 114 | RX_Opcode_Operand * oper; |
| 115 | int do_size = 0; |
| 116 | int do_hex = 0; |
| 117 | int do_addr = 0; |
| 118 | |
| 119 | s ++; |
| 120 | |
| 121 | if (*s == 'S') |
| 122 | { |
| 123 | do_size = 1; |
| 124 | s++; |
| 125 | } |
| 126 | if (*s == 'x') |
| 127 | { |
| 128 | do_hex = 1; |
| 129 | s++; |
| 130 | } |
| 131 | if (*s == 'a') |
| 132 | { |
| 133 | do_addr = 1; |
| 134 | s++; |
| 135 | } |
| 136 | |
| 137 | switch (*s) |
| 138 | { |
| 139 | case '%': |
| 140 | PC ('%'); |
| 141 | break; |
| 142 | |
| 143 | case 's': |
| 144 | PR (PS, "%s", opsize_names[opcode.size]); |
| 145 | break; |
| 146 | |
| 147 | case '0': |
| 148 | case '1': |
| 149 | case '2': |
| 150 | oper = opcode.op + *s - '0'; |
| 151 | if (do_size) |
| 152 | { |
| 153 | if (oper->type == RX_Operand_Indirect) |
| 154 | PR (PS, "%s", size_names[oper->size]); |
| 155 | } |
| 156 | else |
| 157 | switch (oper->type) |
| 158 | { |
| 159 | case RX_Operand_Immediate: |
| 160 | if (do_addr) |
| 161 | dis->print_address_func (oper->addend, dis); |
| 162 | else if (do_hex |
| 163 | || oper->addend > 999 |
| 164 | || oper->addend < -999) |
| 165 | PR (PS, "%#x", oper->addend); |
| 166 | else |
| 167 | PR (PS, "%d", oper->addend); |
| 168 | break; |
| 169 | case RX_Operand_Register: |
| 170 | PR (PS, "%s", register_names[oper->reg]); |
| 171 | break; |
| 172 | case RX_Operand_Indirect: |
| 173 | if (oper->addend) |
| 174 | PR (PS, "%d[%s]", oper->addend, register_names[oper->reg]); |
| 175 | else |
| 176 | PR (PS, "[%s]", register_names[oper->reg]); |
| 177 | break; |
| 178 | case RX_Operand_Postinc: |
| 179 | PR (PS, "[%s+]", register_names[oper->reg]); |
| 180 | break; |
| 181 | case RX_Operand_Predec: |
| 182 | PR (PS, "[-%s]", register_names[oper->reg]); |
| 183 | break; |
| 184 | case RX_Operand_Condition: |
| 185 | PR (PS, "%s", condition_names[oper->reg]); |
| 186 | break; |
| 187 | case RX_Operand_Flag: |
| 188 | PR (PS, "%s", flag_names[oper->reg]); |
| 189 | break; |
| 190 | default: |
| 191 | PR (PS, "[???]"); |
| 192 | break; |
| 193 | } |
| 194 | } |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | return rv; |
| 199 | } |