1 /* Print TI TMS320C80 (MVP) instructions
2 Copyright 1996 Free Software Foundation, Inc.
4 This file 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. */
21 #include "opcode/tic80.h"
25 print_insn_tic80 (memaddr, info)
27 struct disassemble_info *info;
31 unsigned long insn[2];
32 const struct tic80_opcode *opcode;
33 const struct tic80_opcode *opcode_end;
34 const unsigned char *opindex;
35 const struct tic80_operand *operand;
40 status = (*info->read_memory_func) (memaddr, buffer, 4, info);
43 (*info->memory_error_func) (status, memaddr, info);
47 if (info -> endian == BFD_ENDIAN_LITTLE)
49 insn[0] = bfd_getl32 (buffer);
51 else if (info -> endian == BFD_ENDIAN_BIG)
53 insn[0] = bfd_getb32 (buffer);
57 /* FIXME: Should probably just default to one or the other */
61 /* Find the first opcode match in the opcodes table. FIXME: there should
62 be faster ways to find one (hash table or binary search), but don't
63 worry too much about it until other TIc80 support is finished. */
65 opcode_end = tic80_opcodes + tic80_num_opcodes;
66 for (opcode = tic80_opcodes; opcode < opcode_end; opcode++)
68 if ((insn[0] & opcode -> mask) == opcode -> opcode)
74 if (opcode == opcode_end)
76 /* No match found, just print the bits as a .word directive */
77 (*info -> fprintf_func) (info -> stream, ".word %#08lx", insn[0]);
81 /* Match found, decode the instruction. */
82 (*info -> fprintf_func) (info -> stream, "%s", opcode -> name);
84 /* Now extract and print the operands. */
87 if (opcode -> operands[0] != 0)
89 (*info -> fprintf_func) (info -> stream, "\t");
91 for (opindex = opcode -> operands; *opindex != 0; opindex++)
95 operand = tic80_operands + *opindex;
97 /* Extract the value from the instruction. */
98 if (operand -> extract)
100 value = (*operand -> extract) (insn[0], (int *) NULL);
102 else if (operand -> bits == 32)
104 status = (*info->read_memory_func) (memaddr + 4, buffer, 4, info);
107 (*info->memory_error_func) (status, memaddr, info);
111 if (info -> endian == BFD_ENDIAN_LITTLE)
113 insn[1] = bfd_getl32 (buffer);
115 else if (info -> endian == BFD_ENDIAN_BIG)
117 insn[1] = bfd_getb32 (buffer);
119 value = (long) insn[1];
124 value = (insn[0] >> operand -> shift) & ((1 << operand -> bits) - 1);
125 if ((operand -> flags & TIC80_OPERAND_SIGNED) != 0
126 && (value & (1 << (operand -> bits - 1))) != 0)
127 value -= 1 << operand -> bits;
132 (*info -> fprintf_func) (info -> stream, ",");
136 /* Print the operand as directed by the flags. */
137 if ((operand -> flags & TIC80_OPERAND_GPR) != 0)
139 (*info -> fprintf_func) (info -> stream, "r%ld", value);
141 else if ((operand -> flags & TIC80_OPERAND_FPA) != 0)
143 (*info -> fprintf_func) (info -> stream, "a%ld", value);
145 else if ((operand -> flags & TIC80_OPERAND_RELATIVE) != 0)
147 (*info -> print_address_func) (memaddr + 4 * value, info);
149 else if ((operand -> flags & TIC80_OPERAND_BITNUM) != 0)
152 "eq.b", "ne.b", "gt.b", "le.b", "lt.b", "ge.b",
153 "hi.b", "ls.b", "lo.b", "hs.b", "eq.h", "ne.h",
154 "gt.h", "le.h", "lt.h", "ge.h", "hi.h", "ls.h",
155 "lo.h", "hs.h", "eq.w", "ne.w", "gt.w", "le.w",
156 "lt.w", "ge.w", "hi.w", "ls.w", "lo.w", "hs.w"
158 int bitnum = ~value & 0x1F;
162 /* Found a value within range */
163 (*info -> fprintf_func) (info -> stream, "%s", syms[bitnum]);
167 /* Not in range, just print as bit number */
168 (*info -> fprintf_func) (info -> stream, "%ld", bitnum);
171 else if ((operand -> flags & TIC80_OPERAND_CC) != 0)
174 "nev.b", "gt0.b", "eq0.b", "ge0.b", "lt0.b", "ne0.b", "le0.b", "alw.b",
175 "nev.h", "gt0.h", "eq0.h", "ge0.h", "lt0.h", "ne0.h", "le0.h", "alw.h",
176 "nev.w", "gt0.w", "eq0.w", "ge0.w", "lt0.w", "ne0.w", "le0.w", "alw.w"
180 /* Found a value within range */
181 (*info -> fprintf_func) (info -> stream, "%s", syms[value]);
185 /* Not in range, just print as decimal digit. */
186 (*info -> fprintf_func) (info -> stream, "%ld", value);
189 else if ((operand -> flags & TIC80_OPERAND_CR) != 0)
194 case 0: tmp = "EPC"; break;
195 case 1: tmp = "EIP"; break;
196 case 2: tmp = "CONFIG"; break;
197 case 4: tmp = "INTPEN"; break;
198 case 6: tmp = "IE"; break;
199 case 8: tmp = "FPST"; break;
200 case 0xA: tmp = "PPERROR"; break;
201 case 0xD: tmp = "PKTREQ"; break;
202 case 0xE: tmp = "TCOUNT"; break;
203 case 0xF: tmp = "TSCALE"; break;
204 case 0x10: tmp = "FLTOP"; break;
205 case 0x11: tmp = "FLTADR"; break;
206 case 0x12: tmp = "FLTTAG"; break;
207 case 0x13: tmp = "FLTDTL"; break;
208 case 0x14: tmp = "FLTDTH"; break;
209 case 0x20: tmp = "SYSSTK"; break;
210 case 0x21: tmp = "SYSTMP"; break;
211 case 0x30: tmp = "MPC"; break;
212 case 0x31: tmp = "MIP"; break;
213 case 0x33: tmp = "ECOMCNTL"; break;
214 case 0x34: tmp = "ANASTAT"; break;
215 case 0x39: tmp = "BRK1"; break;
216 case 0x3A: tmp = "BRK2"; break;
217 case 0x200: tmp = "ITAG0"; break;
218 case 0x201: tmp = "ITAG1"; break;
219 case 0x202: tmp = "ITAG2"; break;
220 case 0x203: tmp = "ITAG3"; break;
221 case 0x204: tmp = "ITAG4"; break;
222 case 0x205: tmp = "ITAG5"; break;
223 case 0x206: tmp = "ITAG6"; break;
224 case 0x207: tmp = "ITAG7"; break;
225 case 0x208: tmp = "ITAG8"; break;
226 case 0x209: tmp = "ITAG9"; break;
227 case 0x20A: tmp = "ITAG10"; break;
228 case 0x20B: tmp = "ITAG11"; break;
229 case 0x20C: tmp = "ITAG12"; break;
230 case 0x20D: tmp = "ITAG13"; break;
231 case 0x20E: tmp = "ITAG14"; break;
232 case 0x20F: tmp = "ITAG15"; break;
233 case 0x300: tmp = "ILRU"; break;
234 case 0x400: tmp = "DTAG0"; break;
235 case 0x401: tmp = "DTAG1"; break;
236 case 0x402: tmp = "DTAG2"; break;
237 case 0x403: tmp = "DTAG3"; break;
238 case 0x404: tmp = "DTAG4"; break;
239 case 0x405: tmp = "DTAG5"; break;
240 case 0x406: tmp = "DTAG6"; break;
241 case 0x407: tmp = "DTAG7"; break;
242 case 0x408: tmp = "DTAG8"; break;
243 case 0x409: tmp = "DTAG9"; break;
244 case 0x40A: tmp = "DTAG10"; break;
245 case 0x40B: tmp = "DTAG11"; break;
246 case 0x40C: tmp = "DTAG12"; break;
247 case 0x40D: tmp = "DTAG13"; break;
248 case 0x40E: tmp = "DTAG14"; break;
249 case 0x40F: tmp = "DTAG15"; break;
250 case 0x500: tmp = "DLRU"; break;
251 case 0x4000: tmp = "IN0P"; break;
252 case 0x4001: tmp = "IN1P"; break;
253 case 0x4002: tmp = "OUTP"; break;
254 default: tmp = NULL; break;
258 (*info -> fprintf_func) (info -> stream, "%s", tmp);
262 (*info -> fprintf_func) (info -> stream, "%#lx", value);
267 if ((value > 999 || value < -999)
268 || operand -> flags & TIC80_OPERAND_BITFIELD)
270 (*info -> fprintf_func) (info -> stream, "%#lx", value);
274 (*info -> fprintf_func) (info -> stream, "%ld", value);
280 (*info -> fprintf_func) (info -> stream, ")");
284 if ((operand -> flags & TIC80_OPERAND_PARENS) == 0)
290 (*info -> fprintf_func) (info -> stream, "(");