Commit | Line | Data |
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252b5132 | 1 | /* Opcode table header for m680[01234]0/m6888[12]/m68851. |
3e602632 | 2 | Copyright 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2001, |
266abb8f | 3 | 2003, 2004, 2006 Free Software Foundation, Inc. |
252b5132 | 4 | |
3e602632 | 5 | This file is part of GDB, GAS, and the GNU binutils. |
252b5132 | 6 | |
3e602632 NC |
7 | GDB, GAS, and the GNU binutils are free software; you can redistribute |
8 | them and/or modify them under the terms of the GNU General Public | |
9 | License as published by the Free Software Foundation; either version | |
10 | 1, or (at your option) any later version. | |
252b5132 | 11 | |
3e602632 NC |
12 | GDB, GAS, and the GNU binutils are distributed in the hope that they |
13 | will be useful, but WITHOUT ANY WARRANTY; without even the implied | |
14 | warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
15 | the GNU General Public License for more details. | |
252b5132 | 16 | |
3e602632 NC |
17 | You should have received a copy of the GNU General Public License |
18 | along with this file; see the file COPYING. If not, write to the Free | |
e172dbf8 NC |
19 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
20 | 02110-1301, USA. */ | |
252b5132 RH |
21 | |
22 | /* These are used as bit flags for the arch field in the m68k_opcode | |
23 | structure. */ | |
24 | #define _m68k_undef 0 | |
3e602632 | 25 | #define m68000 0x001 |
3e602632 NC |
26 | #define m68010 0x002 |
27 | #define m68020 0x004 | |
28 | #define m68030 0x008 | |
3e602632 | 29 | #define m68040 0x010 |
3e602632 NC |
30 | #define m68060 0x020 |
31 | #define m68881 0x040 | |
3e602632 | 32 | #define m68851 0x080 |
6b6e92f4 | 33 | #define cpu32 0x100 /* e.g., 68332 */ |
266abb8f | 34 | #define m68k_mask 0x1ff |
6b6e92f4 NC |
35 | |
36 | #define mcfmac 0x200 /* ColdFire MAC. */ | |
37 | #define mcfemac 0x400 /* ColdFire EMAC. */ | |
38 | #define cfloat 0x800 /* ColdFire FPU. */ | |
39 | #define mcfhwdiv 0x1000 /* ColdFire hardware divide. */ | |
40 | ||
41 | #define mcfisa_a 0x2000 /* ColdFire ISA_A. */ | |
42 | #define mcfisa_aa 0x4000 /* ColdFire ISA_A+. */ | |
43 | #define mcfisa_b 0x8000 /* ColdFire ISA_B. */ | |
44 | #define mcfusp 0x10000 /* ColdFire USP instructions. */ | |
45 | ||
266abb8f | 46 | /* Handy aliases. */ |
3e602632 NC |
47 | #define m68040up (m68040 | m68060) |
48 | #define m68030up (m68030 | m68040up) | |
49 | #define m68020up (m68020 | m68030up) | |
50 | #define m68010up (m68010 | cpu32 | m68020up) | |
51 | #define m68000up (m68000 | m68010up) | |
3e602632 | 52 | |
266abb8f | 53 | #define mfloat (m68881 | m68040 | m68060) |
252b5132 RH |
54 | #define mmmu (m68851 | m68030 | m68040 | m68060) |
55 | ||
56 | /* The structure used to hold information for an opcode. */ | |
57 | ||
58 | struct m68k_opcode | |
59 | { | |
60 | /* The opcode name. */ | |
61 | const char *name; | |
be8c092b NC |
62 | /* The pseudo-size of the instruction(in bytes). Used to determine |
63 | number of bytes necessary to disassemble the instruction. */ | |
64 | unsigned int size; | |
252b5132 RH |
65 | /* The opcode itself. */ |
66 | unsigned long opcode; | |
67 | /* The mask used by the disassembler. */ | |
68 | unsigned long match; | |
69 | /* The arguments. */ | |
70 | const char *args; | |
71 | /* The architectures which support this opcode. */ | |
72 | unsigned int arch; | |
73 | }; | |
74 | ||
75 | /* The structure used to hold information for an opcode alias. */ | |
76 | ||
77 | struct m68k_opcode_alias | |
78 | { | |
79 | /* The alias name. */ | |
80 | const char *alias; | |
81 | /* The instruction for which this is an alias. */ | |
82 | const char *primary; | |
83 | }; | |
84 | ||
85 | /* We store four bytes of opcode for all opcodes because that is the | |
86 | most any of them need. The actual length of an instruction is | |
87 | always at least 2 bytes, and is as much longer as necessary to hold | |
88 | the operands it has. | |
89 | ||
90 | The match field is a mask saying which bits must match particular | |
91 | opcode in order for an instruction to be an instance of that | |
92 | opcode. | |
93 | ||
94 | The args field is a string containing two characters for each | |
95 | operand of the instruction. The first specifies the kind of | |
96 | operand; the second, the place it is stored. */ | |
97 | ||
98 | /* Kinds of operands: | |
fd99574b | 99 | Characters used: AaBbCcDdEeFfGgHIiJkLlMmnOopQqRrSsTtU VvWwXxYyZz01234|*~%;@!&$?/<>#^+- |
252b5132 RH |
100 | |
101 | D data register only. Stored as 3 bits. | |
102 | A address register only. Stored as 3 bits. | |
103 | a address register indirect only. Stored as 3 bits. | |
104 | R either kind of register. Stored as 4 bits. | |
105 | r either kind of register indirect only. Stored as 4 bits. | |
106 | At the moment, used only for cas2 instruction. | |
107 | F floating point coprocessor register only. Stored as 3 bits. | |
108 | O an offset (or width): immediate data 0-31 or data register. | |
109 | Stored as 6 bits in special format for BF... insns. | |
110 | + autoincrement only. Stored as 3 bits (number of the address register). | |
111 | - autodecrement only. Stored as 3 bits (number of the address register). | |
112 | Q quick immediate data. Stored as 3 bits. | |
113 | This matches an immediate operand only when value is in range 1 .. 8. | |
114 | M moveq immediate data. Stored as 8 bits. | |
115 | This matches an immediate operand only when value is in range -128..127 | |
116 | T trap vector immediate data. Stored as 4 bits. | |
117 | ||
118 | k K-factor for fmove.p instruction. Stored as a 7-bit constant or | |
119 | a three bit register offset, depending on the field type. | |
120 | ||
121 | # immediate data. Stored in special places (b, w or l) | |
122 | which say how many bits to store. | |
123 | ^ immediate data for floating point instructions. Special places | |
124 | are offset by 2 bytes from '#'... | |
125 | B pc-relative address, converted to an offset | |
126 | that is treated as immediate data. | |
127 | d displacement and register. Stores the register as 3 bits | |
128 | and stores the displacement in the entire second word. | |
129 | ||
130 | C the CCR. No need to store it; this is just for filtering validity. | |
131 | S the SR. No need to store, just as with CCR. | |
132 | U the USP. No need to store, just as with CCR. | |
fd99574b NC |
133 | E the MAC ACC. No need to store, just as with CCR. |
134 | e the EMAC ACC[0123]. | |
135 | G the MAC/EMAC MACSR. No need to store, just as with CCR. | |
136 | g the EMAC ACCEXT{01,23}. | |
1fca749b | 137 | H the MASK. No need to store, just as with CCR. |
fd99574b | 138 | i the MAC/EMAC scale factor. |
252b5132 RH |
139 | |
140 | I Coprocessor ID. Not printed if 1. The Coprocessor ID is always | |
141 | extracted from the 'd' field of word one, which means that an extended | |
142 | coprocessor opcode can be skipped using the 'i' place, if needed. | |
143 | ||
144 | s System Control register for the floating point coprocessor. | |
145 | ||
146 | J Misc register for movec instruction, stored in 'j' format. | |
147 | Possible values: | |
148 | 0x000 SFC Source Function Code reg [60, 40, 30, 20, 10] | |
149 | 0x001 DFC Data Function Code reg [60, 40, 30, 20, 10] | |
3e602632 | 150 | 0x002 CACR Cache Control Register [60, 40, 30, 20, mcf] |
252b5132 RH |
151 | 0x003 TC MMU Translation Control [60, 40] |
152 | 0x004 ITT0 Instruction Transparent | |
153 | Translation reg 0 [60, 40] | |
154 | 0x005 ITT1 Instruction Transparent | |
155 | Translation reg 1 [60, 40] | |
156 | 0x006 DTT0 Data Transparent | |
157 | Translation reg 0 [60, 40] | |
158 | 0x007 DTT1 Data Transparent | |
159 | Translation reg 1 [60, 40] | |
160 | 0x008 BUSCR Bus Control Register [60] | |
161 | 0x800 USP User Stack Pointer [60, 40, 30, 20, 10] | |
3e602632 | 162 | 0x801 VBR Vector Base reg [60, 40, 30, 20, 10, mcf] |
252b5132 RH |
163 | 0x802 CAAR Cache Address Register [ 30, 20] |
164 | 0x803 MSP Master Stack Pointer [ 40, 30, 20] | |
165 | 0x804 ISP Interrupt Stack Pointer [ 40, 30, 20] | |
166 | 0x805 MMUSR MMU Status reg [ 40] | |
167 | 0x806 URP User Root Pointer [60, 40] | |
168 | 0x807 SRP Supervisor Root Pointer [60, 40] | |
169 | 0x808 PCR Processor Configuration reg [60] | |
170 | 0xC00 ROMBAR ROM Base Address Register [520X] | |
171 | 0xC04 RAMBAR0 RAM Base Address Register 0 [520X] | |
172 | 0xC05 RAMBAR1 RAM Base Address Register 0 [520X] | |
173 | 0xC0F MBAR0 RAM Base Address Register 0 [520X] | |
3e602632 NC |
174 | 0xC04 FLASHBAR FLASH Base Address Register [mcf528x] |
175 | 0xC05 RAMBAR Static RAM Base Address Register [mcf528x] | |
252b5132 RH |
176 | |
177 | L Register list of the type d0-d7/a0-a7 etc. | |
178 | (New! Improved! Can also hold fp0-fp7, as well!) | |
179 | The assembler tries to see if the registers match the insn by | |
180 | looking at where the insn wants them stored. | |
181 | ||
182 | l Register list like L, but with all the bits reversed. | |
183 | Used for going the other way. . . | |
184 | ||
185 | c cache identifier which may be "nc" for no cache, "ic" | |
186 | for instruction cache, "dc" for data cache, or "bc" | |
187 | for both caches. Used in cinv and cpush. Always | |
188 | stored in position "d". | |
189 | ||
1fca749b ILT |
190 | u Any register, with ``upper'' or ``lower'' specification. Used |
191 | in the mac instructions with size word. | |
192 | ||
252b5132 RH |
193 | The remainder are all stored as 6 bits using an address mode and a |
194 | register number; they differ in which addressing modes they match. | |
195 | ||
196 | * all (modes 0-6,7.0-4) | |
197 | ~ alterable memory (modes 2-6,7.0,7.1) | |
198 | (not 0,1,7.2-4) | |
199 | % alterable (modes 0-6,7.0,7.1) | |
200 | (not 7.2-4) | |
201 | ; data (modes 0,2-6,7.0-4) | |
202 | (not 1) | |
203 | @ data, but not immediate (modes 0,2-6,7.0-3) | |
204 | (not 1,7.4) | |
205 | ! control (modes 2,5,6,7.0-3) | |
206 | (not 0,1,3,4,7.4) | |
207 | & alterable control (modes 2,5,6,7.0,7.1) | |
8577e690 | 208 | (not 0,1,3,4,7.2-4) |
252b5132 RH |
209 | $ alterable data (modes 0,2-6,7.0,7.1) |
210 | (not 1,7.2-4) | |
211 | ? alterable control, or data register (modes 0,2,5,6,7.0,7.1) | |
212 | (not 1,3,4,7.2-4) | |
213 | / control, or data register (modes 0,2,5,6,7.0-3) | |
214 | (not 1,3,4,7.4) | |
215 | > *save operands (modes 2,4,5,6,7.0,7.1) | |
216 | (not 0,1,3,7.2-4) | |
217 | < *restore operands (modes 2,3,5,6,7.0-3) | |
218 | (not 0,1,4,7.4) | |
219 | ||
220 | coldfire move operands: | |
221 | m (modes 0-4) | |
222 | n (modes 5,7.2) | |
223 | o (modes 6,7.0,7.1,7.3,7.4) | |
224 | p (modes 0-5) | |
225 | ||
226 | coldfire bset/bclr/btst/mulsl/mulul operands: | |
227 | q (modes 0,2-5) | |
228 | v (modes 0,2-5,7.0,7.1) | |
3e602632 NC |
229 | b (modes 0,2-5,7.2) |
230 | w (modes 2-5,7.2) | |
231 | y (modes 2,5) | |
232 | z (modes 2,5,7.2) | |
fd99574b NC |
233 | x mov3q immediate operand. |
234 | 4 (modes 2,3,4,5) | |
235 | */ | |
3e602632 NC |
236 | |
237 | /* For the 68851: */ | |
238 | /* I didn't use much imagination in choosing the | |
252b5132 RH |
239 | following codes, so many of them aren't very |
240 | mnemonic. -rab | |
241 | ||
242 | 0 32 bit pmmu register | |
243 | Possible values: | |
244 | 000 TC Translation Control Register (68030, 68851) | |
245 | ||
246 | 1 16 bit pmmu register | |
247 | 111 AC Access Control (68851) | |
248 | ||
249 | 2 8 bit pmmu register | |
250 | 100 CAL Current Access Level (68851) | |
251 | 101 VAL Validate Access Level (68851) | |
252 | 110 SCC Stack Change Control (68851) | |
253 | ||
254 | 3 68030-only pmmu registers (32 bit) | |
255 | 010 TT0 Transparent Translation reg 0 | |
256 | (aka Access Control reg 0 -- AC0 -- on 68ec030) | |
257 | 011 TT1 Transparent Translation reg 1 | |
258 | (aka Access Control reg 1 -- AC1 -- on 68ec030) | |
259 | ||
260 | W wide pmmu registers | |
261 | Possible values: | |
262 | 001 DRP Dma Root Pointer (68851) | |
263 | 010 SRP Supervisor Root Pointer (68030, 68851) | |
264 | 011 CRP Cpu Root Pointer (68030, 68851) | |
265 | ||
266 | f function code register (68030, 68851) | |
267 | 0 SFC | |
268 | 1 DFC | |
269 | ||
270 | V VAL register only (68851) | |
271 | ||
272 | X BADx, BACx (16 bit) | |
273 | 100 BAD Breakpoint Acknowledge Data (68851) | |
274 | 101 BAC Breakpoint Acknowledge Control (68851) | |
275 | ||
276 | Y PSR (68851) (MMUSR on 68030) (ACUSR on 68ec030) | |
277 | Z PCSR (68851) | |
278 | ||
279 | | memory (modes 2-6, 7.*) | |
280 | ||
281 | t address test level (68030 only) | |
282 | Stored as 3 bits, range 0-7. | |
283 | Also used for breakpoint instruction now. | |
284 | ||
285 | */ | |
286 | ||
287 | /* Places to put an operand, for non-general operands: | |
fd99574b | 288 | Characters used: BbCcDdFfGgHhIijkLlMmNnostWw123456789/ |
1fca749b | 289 | |
252b5132 RH |
290 | s source, low bits of first word. |
291 | d dest, shifted 9 in first word | |
292 | 1 second word, shifted 12 | |
293 | 2 second word, shifted 6 | |
294 | 3 second word, shifted 0 | |
295 | 4 third word, shifted 12 | |
296 | 5 third word, shifted 6 | |
297 | 6 third word, shifted 0 | |
298 | 7 second word, shifted 7 | |
299 | 8 second word, shifted 10 | |
300 | 9 second word, shifted 5 | |
301 | D store in both place 1 and place 3; for divul and divsl. | |
302 | B first word, low byte, for branch displacements | |
303 | W second word (entire), for branch displacements | |
304 | L second and third words (entire), for branch displacements | |
305 | (also overloaded for move16) | |
306 | b second word, low byte | |
307 | w second word (entire) [variable word/long branch offset for dbra] | |
308 | W second word (entire) (must be signed 16 bit value) | |
309 | l second and third word (entire) | |
310 | g variable branch offset for bra and similar instructions. | |
311 | The place to store depends on the magnitude of offset. | |
312 | t store in both place 7 and place 8; for floating point operations | |
313 | c branch offset for cpBcc operations. | |
314 | The place to store is word two if bit six of word one is zero, | |
315 | and words two and three if bit six of word one is one. | |
316 | i Increment by two, to skip over coprocessor extended operands. Only | |
317 | works with the 'I' format. | |
318 | k Dynamic K-factor field. Bits 6-4 of word 2, used as a register number. | |
319 | Also used for dynamic fmovem instruction. | |
320 | C floating point coprocessor constant - 7 bits. Also used for static | |
321 | K-factors... | |
322 | j Movec register #, stored in 12 low bits of second word. | |
1fca749b ILT |
323 | m For M[S]ACx; 4 bits split with MSB shifted 6 bits in first word |
324 | and remaining 3 bits of register shifted 9 bits in first word. | |
325 | Indicate upper/lower in 1 bit shifted 7 bits in second word. | |
326 | Use with `R' or `u' format. | |
327 | n `m' withouth upper/lower indication. (For M[S]ACx; 4 bits split | |
328 | with MSB shifted 6 bits in first word and remaining 3 bits of | |
329 | register shifted 9 bits in first word. No upper/lower | |
330 | indication is done.) Use with `R' or `u' format. | |
331 | o For M[S]ACw; 4 bits shifted 12 in second word (like `1'). | |
332 | Indicate upper/lower in 1 bit shifted 7 bits in second word. | |
333 | Use with `R' or `u' format. | |
334 | M For M[S]ACw; 4 bits in low bits of first word. Indicate | |
335 | upper/lower in 1 bit shifted 6 bits in second word. Use with | |
336 | `R' or `u' format. | |
337 | N For M[S]ACw; 4 bits in low bits of second word. Indicate | |
338 | upper/lower in 1 bit shifted 6 bits in second word. Use with | |
339 | `R' or `u' format. | |
340 | h shift indicator (scale factor), 1 bit shifted 10 in second word | |
252b5132 RH |
341 | |
342 | Places to put operand, for general operands: | |
343 | d destination, shifted 6 bits in first word | |
344 | b source, at low bit of first word, and immediate uses one byte | |
345 | w source, at low bit of first word, and immediate uses two bytes | |
346 | l source, at low bit of first word, and immediate uses four bytes | |
347 | s source, at low bit of first word. | |
348 | Used sometimes in contexts where immediate is not allowed anyway. | |
349 | f single precision float, low bit of 1st word, immediate uses 4 bytes | |
350 | F double precision float, low bit of 1st word, immediate uses 8 bytes | |
351 | x extended precision float, low bit of 1st word, immediate uses 12 bytes | |
352 | p packed float, low bit of 1st word, immediate uses 12 bytes | |
fd99574b NC |
353 | G EMAC accumulator, load (bit 4 2nd word, !bit8 first word) |
354 | H EMAC accumulator, non load (bit 4 2nd word, bit 8 first word) | |
355 | F EMAC ACCx | |
356 | f EMAC ACCy | |
357 | I MAC/EMAC scale factor | |
358 | / Like 's', but set 2nd word, bit 5 if trailing_ampersand set | |
359 | ] first word, bit 10 | |
252b5132 RH |
360 | */ |
361 | ||
362 | extern const struct m68k_opcode m68k_opcodes[]; | |
363 | extern const struct m68k_opcode_alias m68k_opcode_aliases[]; | |
364 | ||
365 | extern const int m68k_numopcodes, m68k_numaliases; | |
366 | ||
367 | /* end of m68k-opcode.h */ |