1 /* Opcode table header for m680[01234]0/m6888[12]/m68851.
2 Copyright 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2001,
3 2003, 2004, 2006, 2010 Free Software Foundation, Inc.
5 This file is part of GDB, GAS, and the GNU binutils.
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 3,
10 or (at your option) any later version.
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.
17 You should have received a copy of the GNU General Public License
18 along with this file; see the file COPYING3. If not, write to the Free
19 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
22 /* These are used as bit flags for the arch field in the m68k_opcode
33 #define cpu32 0x100 /* e.g., 68332 */
35 #define m68k_mask 0x3ff
37 #define mcfmac 0x400 /* ColdFire MAC. */
38 #define mcfemac 0x800 /* ColdFire EMAC. */
39 #define cfloat 0x1000 /* ColdFire FPU. */
40 #define mcfhwdiv 0x2000 /* ColdFire hardware divide. */
42 #define mcfisa_a 0x4000 /* ColdFire ISA_A. */
43 #define mcfisa_aa 0x8000 /* ColdFire ISA_A+. */
44 #define mcfisa_b 0x10000 /* ColdFire ISA_B. */
45 #define mcfisa_c 0x20000 /* ColdFire ISA_C. */
46 #define mcfusp 0x40000 /* ColdFire USP instructions. */
47 #define mcf_mask 0x7e400
50 #define m68040up (m68040 | m68060)
51 #define m68030up (m68030 | m68040up)
52 #define m68020up (m68020 | m68030up)
53 #define m68010up (m68010 | cpu32 | fido_a | m68020up)
54 #define m68000up (m68000 | m68010up)
56 #define mfloat (m68881 | m68040 | m68060)
57 #define mmmu (m68851 | m68030 | m68040 | m68060)
59 /* The structure used to hold information for an opcode. */
63 /* The opcode name. */
65 /* The pseudo-size of the instruction(in bytes). Used to determine
66 number of bytes necessary to disassemble the instruction. */
68 /* The opcode itself. */
70 /* The mask used by the disassembler. */
74 /* The architectures which support this opcode. */
78 /* The structure used to hold information for an opcode alias. */
80 struct m68k_opcode_alias
84 /* The instruction for which this is an alias. */
88 /* We store four bytes of opcode for all opcodes because that is the
89 most any of them need. The actual length of an instruction is
90 always at least 2 bytes, and is as much longer as necessary to hold
93 The match field is a mask saying which bits must match particular
94 opcode in order for an instruction to be an instance of that
97 The args field is a string containing two characters for each
98 operand of the instruction. The first specifies the kind of
99 operand; the second, the place it is stored.
101 If the first char of args is '.', it indicates that the opcode is
102 two words. This is only necessary when the match field does not
103 have any bits set in the second opcode word. Such a '.' is skipped
104 for operand processing. */
106 /* Kinds of operands:
107 Characters used: AaBbCcDdEeFfGgHIiJjKkLlMmnOopQqRrSsTtUuVvWwXxYyZz01234|*~%;@!&$?/<>#^+-
109 D data register only. Stored as 3 bits.
110 A address register only. Stored as 3 bits.
111 a address register indirect only. Stored as 3 bits.
112 R either kind of register. Stored as 4 bits.
113 r either kind of register indirect only. Stored as 4 bits.
114 At the moment, used only for cas2 instruction.
115 F floating point coprocessor register only. Stored as 3 bits.
116 O an offset (or width): immediate data 0-31 or data register.
117 Stored as 6 bits in special format for BF... insns.
118 + autoincrement only. Stored as 3 bits (number of the address register).
119 - autodecrement only. Stored as 3 bits (number of the address register).
120 Q quick immediate data. Stored as 3 bits.
121 This matches an immediate operand only when value is in range 1 .. 8.
122 M moveq immediate data. Stored as 8 bits.
123 This matches an immediate operand only when value is in range -128..127
124 T trap vector immediate data. Stored as 4 bits.
126 k K-factor for fmove.p instruction. Stored as a 7-bit constant or
127 a three bit register offset, depending on the field type.
129 # immediate data. Stored in special places (b, w or l)
130 which say how many bits to store.
131 ^ immediate data for floating point instructions. Special places
132 are offset by 2 bytes from '#'...
133 B pc-relative address, converted to an offset
134 that is treated as immediate data.
135 d displacement and register. Stores the register as 3 bits
136 and stores the displacement in the entire second word.
138 C the CCR. No need to store it; this is just for filtering validity.
139 S the SR. No need to store, just as with CCR.
140 U the USP. No need to store, just as with CCR.
141 E the MAC ACC. No need to store, just as with CCR.
142 e the EMAC ACC[0123].
143 G the MAC/EMAC MACSR. No need to store, just as with CCR.
144 g the EMAC ACCEXT{01,23}.
145 H the MASK. No need to store, just as with CCR.
146 i the MAC/EMAC scale factor.
148 I Coprocessor ID. Not printed if 1. The Coprocessor ID is always
149 extracted from the 'd' field of word one, which means that an extended
150 coprocessor opcode can be skipped using the 'i' place, if needed.
152 s System Control register for the floating point coprocessor.
154 J Misc register for movec instruction, stored in 'j' format.
156 0x000 SFC Source Function Code reg [60, 40, 30, 20, 10]
157 0x001 DFC Data Function Code reg [60, 40, 30, 20, 10]
158 0x002 CACR Cache Control Register [60, 40, 30, 20, mcf]
159 0x003 TC MMU Translation Control [60, 40]
160 0x004 ITT0 Instruction Transparent
161 Translation reg 0 [60, 40]
162 0x005 ITT1 Instruction Transparent
163 Translation reg 1 [60, 40]
164 0x006 DTT0 Data Transparent
165 Translation reg 0 [60, 40]
166 0x007 DTT1 Data Transparent
167 Translation reg 1 [60, 40]
168 0x008 BUSCR Bus Control Register [60]
169 0x800 USP User Stack Pointer [60, 40, 30, 20, 10]
170 0x801 VBR Vector Base reg [60, 40, 30, 20, 10, mcf]
171 0x802 CAAR Cache Address Register [ 30, 20]
172 0x803 MSP Master Stack Pointer [ 40, 30, 20]
173 0x804 ISP Interrupt Stack Pointer [ 40, 30, 20]
174 0x805 MMUSR MMU Status reg [ 40]
175 0x806 URP User Root Pointer [60, 40]
176 0x807 SRP Supervisor Root Pointer [60, 40]
177 0x808 PCR Processor Configuration reg [60]
178 0xC00 ROMBAR ROM Base Address Register [520X]
179 0xC04 RAMBAR0 RAM Base Address Register 0 [520X]
180 0xC05 RAMBAR1 RAM Base Address Register 0 [520X]
181 0xC0F MBAR0 RAM Base Address Register 0 [520X]
182 0xC04 FLASHBAR FLASH Base Address Register [mcf528x]
183 0xC05 RAMBAR Static RAM Base Address Register [mcf528x]
185 L Register list of the type d0-d7/a0-a7 etc.
186 (New! Improved! Can also hold fp0-fp7, as well!)
187 The assembler tries to see if the registers match the insn by
188 looking at where the insn wants them stored.
190 l Register list like L, but with all the bits reversed.
191 Used for going the other way. . .
193 c cache identifier which may be "nc" for no cache, "ic"
194 for instruction cache, "dc" for data cache, or "bc"
195 for both caches. Used in cinv and cpush. Always
196 stored in position "d".
198 u Any register, with ``upper'' or ``lower'' specification. Used
199 in the mac instructions with size word.
201 The remainder are all stored as 6 bits using an address mode and a
202 register number; they differ in which addressing modes they match.
204 * all (modes 0-6,7.0-4)
205 ~ alterable memory (modes 2-6,7.0,7.1)
207 % alterable (modes 0-6,7.0,7.1)
209 ; data (modes 0,2-6,7.0-4)
211 @ data, but not immediate (modes 0,2-6,7.0-3)
213 ! control (modes 2,5,6,7.0-3)
215 & alterable control (modes 2,5,6,7.0,7.1)
217 $ alterable data (modes 0,2-6,7.0,7.1)
219 ? alterable control, or data register (modes 0,2,5,6,7.0,7.1)
221 / control, or data register (modes 0,2,5,6,7.0-3)
223 > *save operands (modes 2,4,5,6,7.0,7.1)
225 < *restore operands (modes 2,3,5,6,7.0-3)
228 coldfire move operands:
231 o (modes 6,7.0,7.1,7.3,7.4)
234 coldfire bset/bclr/btst/mulsl/mulul operands:
236 v (modes 0,2-5,7.0,7.1)
241 x mov3q immediate operand.
242 j coprocessor ET operand.
243 K coprocessor command number.
248 /* I didn't use much imagination in choosing the
249 following codes, so many of them aren't very
252 0 32 bit pmmu register
254 000 TC Translation Control Register (68030, 68851)
256 1 16 bit pmmu register
257 111 AC Access Control (68851)
259 2 8 bit pmmu register
260 100 CAL Current Access Level (68851)
261 101 VAL Validate Access Level (68851)
262 110 SCC Stack Change Control (68851)
264 3 68030-only pmmu registers (32 bit)
265 010 TT0 Transparent Translation reg 0
266 (aka Access Control reg 0 -- AC0 -- on 68ec030)
267 011 TT1 Transparent Translation reg 1
268 (aka Access Control reg 1 -- AC1 -- on 68ec030)
270 W wide pmmu registers
272 001 DRP Dma Root Pointer (68851)
273 010 SRP Supervisor Root Pointer (68030, 68851)
274 011 CRP Cpu Root Pointer (68030, 68851)
276 f function code register (68030, 68851)
280 V VAL register only (68851)
282 X BADx, BACx (16 bit)
283 100 BAD Breakpoint Acknowledge Data (68851)
284 101 BAC Breakpoint Acknowledge Control (68851)
286 Y PSR (68851) (MMUSR on 68030) (ACUSR on 68ec030)
289 | memory (modes 2-6, 7.*)
291 t address test level (68030 only)
292 Stored as 3 bits, range 0-7.
293 Also used for breakpoint instruction now.
297 /* Places to put an operand, for non-general operands:
298 Characters used: BbCcDdFfGgHhIijkLlMmNnostWw123456789/
300 s source, low bits of first word.
301 d dest, shifted 9 in first word
302 1 second word, shifted 12
303 2 second word, shifted 6
304 3 second word, shifted 0
305 4 third word, shifted 12
306 5 third word, shifted 6
307 6 third word, shifted 0
308 7 second word, shifted 7
309 8 second word, shifted 10
310 9 second word, shifted 5
311 E second word, shifted 9
312 D store in both place 1 and place 3; for divul and divsl.
313 B first word, low byte, for branch displacements
314 W second word (entire), for branch displacements
315 L second and third words (entire), for branch displacements
316 (also overloaded for move16)
317 b second word, low byte
318 w second word (entire) [variable word/long branch offset for dbra]
319 W second word (entire) (must be signed 16 bit value)
320 l second and third word (entire)
321 g variable branch offset for bra and similar instructions.
322 The place to store depends on the magnitude of offset.
323 t store in both place 7 and place 8; for floating point operations
324 c branch offset for cpBcc operations.
325 The place to store is word two if bit six of word one is zero,
326 and words two and three if bit six of word one is one.
327 i Increment by two, to skip over coprocessor extended operands. Only
328 works with the 'I' format.
329 k Dynamic K-factor field. Bits 6-4 of word 2, used as a register number.
330 Also used for dynamic fmovem instruction.
331 C floating point coprocessor constant - 7 bits. Also used for static
333 j Movec register #, stored in 12 low bits of second word.
334 m For M[S]ACx; 4 bits split with MSB shifted 6 bits in first word
335 and remaining 3 bits of register shifted 9 bits in first word.
336 Indicate upper/lower in 1 bit shifted 7 bits in second word.
337 Use with `R' or `u' format.
338 n `m' withouth upper/lower indication. (For M[S]ACx; 4 bits split
339 with MSB shifted 6 bits in first word and remaining 3 bits of
340 register shifted 9 bits in first word. No upper/lower
341 indication is done.) Use with `R' or `u' format.
342 o For M[S]ACw; 4 bits shifted 12 in second word (like `1').
343 Indicate upper/lower in 1 bit shifted 7 bits in second word.
344 Use with `R' or `u' format.
345 M For M[S]ACw; 4 bits in low bits of first word. Indicate
346 upper/lower in 1 bit shifted 6 bits in second word. Use with
348 N For M[S]ACw; 4 bits in low bits of second word. Indicate
349 upper/lower in 1 bit shifted 6 bits in second word. Use with
351 h shift indicator (scale factor), 1 bit shifted 10 in second word
353 Places to put operand, for general operands:
354 d destination, shifted 6 bits in first word
355 b source, at low bit of first word, and immediate uses one byte
356 w source, at low bit of first word, and immediate uses two bytes
357 l source, at low bit of first word, and immediate uses four bytes
358 s source, at low bit of first word.
359 Used sometimes in contexts where immediate is not allowed anyway.
360 f single precision float, low bit of 1st word, immediate uses 4 bytes
361 F double precision float, low bit of 1st word, immediate uses 8 bytes
362 x extended precision float, low bit of 1st word, immediate uses 12 bytes
363 p packed float, low bit of 1st word, immediate uses 12 bytes
364 G EMAC accumulator, load (bit 4 2nd word, !bit8 first word)
365 H EMAC accumulator, non load (bit 4 2nd word, bit 8 first word)
368 I MAC/EMAC scale factor
369 / Like 's', but set 2nd word, bit 5 if trailing_ampersand set
373 extern const struct m68k_opcode m68k_opcodes[];
374 extern const struct m68k_opcode_alias m68k_opcode_aliases[];
376 extern const int m68k_numopcodes, m68k_numaliases;
378 /* end of m68k-opcode.h */