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Diffstat (limited to 'binutils-2.25/include/opcode/m68k.h')
| -rw-r--r-- | binutils-2.25/include/opcode/m68k.h | 378 |
1 files changed, 378 insertions, 0 deletions
diff --git a/binutils-2.25/include/opcode/m68k.h b/binutils-2.25/include/opcode/m68k.h new file mode 100644 index 00000000..f7bd8b45 --- /dev/null +++ b/binutils-2.25/include/opcode/m68k.h @@ -0,0 +1,378 @@ +/* Opcode table header for m680[01234]0/m6888[12]/m68851. + Copyright 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2001, + 2003, 2004, 2006, 2010 Free Software Foundation, Inc. + + This file is part of GDB, GAS, and the GNU binutils. + + GDB, GAS, and the GNU binutils are free software; you can redistribute + them and/or modify them under the terms of the GNU General Public + License as published by the Free Software Foundation; either version 3, + or (at your option) any later version. + + GDB, GAS, and the GNU binutils are distributed in the hope that they + will be useful, but WITHOUT ANY WARRANTY; without even the implied + warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this file; see the file COPYING3. If not, write to the Free + Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA + 02110-1301, USA. */ + +/* These are used as bit flags for the arch field in the m68k_opcode + structure. */ +#define _m68k_undef 0 +#define m68000 0x001 +#define m68010 0x002 +#define m68020 0x004 +#define m68030 0x008 +#define m68040 0x010 +#define m68060 0x020 +#define m68881 0x040 +#define m68851 0x080 +#define cpu32 0x100 /* e.g., 68332 */ +#define fido_a 0x200 +#define m68k_mask 0x3ff + +#define mcfmac 0x400 /* ColdFire MAC. */ +#define mcfemac 0x800 /* ColdFire EMAC. */ +#define cfloat 0x1000 /* ColdFire FPU. */ +#define mcfhwdiv 0x2000 /* ColdFire hardware divide. */ + +#define mcfisa_a 0x4000 /* ColdFire ISA_A. */ +#define mcfisa_aa 0x8000 /* ColdFire ISA_A+. */ +#define mcfisa_b 0x10000 /* ColdFire ISA_B. */ +#define mcfisa_c 0x20000 /* ColdFire ISA_C. */ +#define mcfusp 0x40000 /* ColdFire USP instructions. */ +#define mcf_mask 0x7e400 + +/* Handy aliases. */ +#define m68040up (m68040 | m68060) +#define m68030up (m68030 | m68040up) +#define m68020up (m68020 | m68030up) +#define m68010up (m68010 | cpu32 | fido_a | m68020up) +#define m68000up (m68000 | m68010up) + +#define mfloat (m68881 | m68040 | m68060) +#define mmmu (m68851 | m68030 | m68040 | m68060) + +/* The structure used to hold information for an opcode. */ + +struct m68k_opcode +{ + /* The opcode name. */ + const char *name; + /* The pseudo-size of the instruction(in bytes). Used to determine + number of bytes necessary to disassemble the instruction. */ + unsigned int size; + /* The opcode itself. */ + unsigned long opcode; + /* The mask used by the disassembler. */ + unsigned long match; + /* The arguments. */ + const char *args; + /* The architectures which support this opcode. */ + unsigned int arch; +}; + +/* The structure used to hold information for an opcode alias. */ + +struct m68k_opcode_alias +{ + /* The alias name. */ + const char *alias; + /* The instruction for which this is an alias. */ + const char *primary; +}; + +/* We store four bytes of opcode for all opcodes because that is the + most any of them need. The actual length of an instruction is + always at least 2 bytes, and is as much longer as necessary to hold + the operands it has. + + The match field is a mask saying which bits must match particular + opcode in order for an instruction to be an instance of that + opcode. + + The args field is a string containing two characters for each + operand of the instruction. The first specifies the kind of + operand; the second, the place it is stored. + + If the first char of args is '.', it indicates that the opcode is + two words. This is only necessary when the match field does not + have any bits set in the second opcode word. Such a '.' is skipped + for operand processing. */ + +/* Kinds of operands: + Characters used: AaBbCcDdEeFfGgHIiJjKkLlMmnOopQqRrSsTtUuVvWwXxYyZz01234|*~%;@!&$?/<>#^+- + + D data register only. Stored as 3 bits. + A address register only. Stored as 3 bits. + a address register indirect only. Stored as 3 bits. + R either kind of register. Stored as 4 bits. + r either kind of register indirect only. Stored as 4 bits. + At the moment, used only for cas2 instruction. + F floating point coprocessor register only. Stored as 3 bits. + O an offset (or width): immediate data 0-31 or data register. + Stored as 6 bits in special format for BF... insns. + + autoincrement only. Stored as 3 bits (number of the address register). + - autodecrement only. Stored as 3 bits (number of the address register). + Q quick immediate data. Stored as 3 bits. + This matches an immediate operand only when value is in range 1 .. 8. + M moveq immediate data. Stored as 8 bits. + This matches an immediate operand only when value is in range -128..127 + T trap vector immediate data. Stored as 4 bits. + + k K-factor for fmove.p instruction. Stored as a 7-bit constant or + a three bit register offset, depending on the field type. + + # immediate data. Stored in special places (b, w or l) + which say how many bits to store. + ^ immediate data for floating point instructions. Special places + are offset by 2 bytes from '#'... + B pc-relative address, converted to an offset + that is treated as immediate data. + d displacement and register. Stores the register as 3 bits + and stores the displacement in the entire second word. + + C the CCR. No need to store it; this is just for filtering validity. + S the SR. No need to store, just as with CCR. + U the USP. No need to store, just as with CCR. + E the MAC ACC. No need to store, just as with CCR. + e the EMAC ACC[0123]. + G the MAC/EMAC MACSR. No need to store, just as with CCR. + g the EMAC ACCEXT{01,23}. + H the MASK. No need to store, just as with CCR. + i the MAC/EMAC scale factor. + + I Coprocessor ID. Not printed if 1. The Coprocessor ID is always + extracted from the 'd' field of word one, which means that an extended + coprocessor opcode can be skipped using the 'i' place, if needed. + + s System Control register for the floating point coprocessor. + + J Misc register for movec instruction, stored in 'j' format. + Possible values: + 0x000 SFC Source Function Code reg [60, 40, 30, 20, 10] + 0x001 DFC Data Function Code reg [60, 40, 30, 20, 10] + 0x002 CACR Cache Control Register [60, 40, 30, 20, mcf] + 0x003 TC MMU Translation Control [60, 40] + 0x004 ITT0 Instruction Transparent + Translation reg 0 [60, 40] + 0x005 ITT1 Instruction Transparent + Translation reg 1 [60, 40] + 0x006 DTT0 Data Transparent + Translation reg 0 [60, 40] + 0x007 DTT1 Data Transparent + Translation reg 1 [60, 40] + 0x008 BUSCR Bus Control Register [60] + 0x800 USP User Stack Pointer [60, 40, 30, 20, 10] + 0x801 VBR Vector Base reg [60, 40, 30, 20, 10, mcf] + 0x802 CAAR Cache Address Register [ 30, 20] + 0x803 MSP Master Stack Pointer [ 40, 30, 20] + 0x804 ISP Interrupt Stack Pointer [ 40, 30, 20] + 0x805 MMUSR MMU Status reg [ 40] + 0x806 URP User Root Pointer [60, 40] + 0x807 SRP Supervisor Root Pointer [60, 40] + 0x808 PCR Processor Configuration reg [60] + 0xC00 ROMBAR ROM Base Address Register [520X] + 0xC04 RAMBAR0 RAM Base Address Register 0 [520X] + 0xC05 RAMBAR1 RAM Base Address Register 0 [520X] + 0xC0F MBAR0 RAM Base Address Register 0 [520X] + 0xC04 FLASHBAR FLASH Base Address Register [mcf528x] + 0xC05 RAMBAR Static RAM Base Address Register [mcf528x] + + L Register list of the type d0-d7/a0-a7 etc. + (New! Improved! Can also hold fp0-fp7, as well!) + The assembler tries to see if the registers match the insn by + looking at where the insn wants them stored. + + l Register list like L, but with all the bits reversed. + Used for going the other way. . . + + c cache identifier which may be "nc" for no cache, "ic" + for instruction cache, "dc" for data cache, or "bc" + for both caches. Used in cinv and cpush. Always + stored in position "d". + + u Any register, with ``upper'' or ``lower'' specification. Used + in the mac instructions with size word. + + The remainder are all stored as 6 bits using an address mode and a + register number; they differ in which addressing modes they match. + + * all (modes 0-6,7.0-4) + ~ alterable memory (modes 2-6,7.0,7.1) + (not 0,1,7.2-4) + % alterable (modes 0-6,7.0,7.1) + (not 7.2-4) + ; data (modes 0,2-6,7.0-4) + (not 1) + @ data, but not immediate (modes 0,2-6,7.0-3) + (not 1,7.4) + ! control (modes 2,5,6,7.0-3) + (not 0,1,3,4,7.4) + & alterable control (modes 2,5,6,7.0,7.1) + (not 0,1,3,4,7.2-4) + $ alterable data (modes 0,2-6,7.0,7.1) + (not 1,7.2-4) + ? alterable control, or data register (modes 0,2,5,6,7.0,7.1) + (not 1,3,4,7.2-4) + / control, or data register (modes 0,2,5,6,7.0-3) + (not 1,3,4,7.4) + > *save operands (modes 2,4,5,6,7.0,7.1) + (not 0,1,3,7.2-4) + < *restore operands (modes 2,3,5,6,7.0-3) + (not 0,1,4,7.4) + + coldfire move operands: + m (modes 0-4) + n (modes 5,7.2) + o (modes 6,7.0,7.1,7.3,7.4) + p (modes 0-5) + + coldfire bset/bclr/btst/mulsl/mulul operands: + q (modes 0,2-5) + v (modes 0,2-5,7.0,7.1) + b (modes 0,2-5,7.2) + w (modes 2-5,7.2) + y (modes 2,5) + z (modes 2,5,7.2) + x mov3q immediate operand. + j coprocessor ET operand. + K coprocessor command number. + 4 (modes 2,3,4,5) + */ + +/* For the 68851: */ +/* I didn't use much imagination in choosing the + following codes, so many of them aren't very + mnemonic. -rab + + 0 32 bit pmmu register + Possible values: + 000 TC Translation Control Register (68030, 68851) + + 1 16 bit pmmu register + 111 AC Access Control (68851) + + 2 8 bit pmmu register + 100 CAL Current Access Level (68851) + 101 VAL Validate Access Level (68851) + 110 SCC Stack Change Control (68851) + + 3 68030-only pmmu registers (32 bit) + 010 TT0 Transparent Translation reg 0 + (aka Access Control reg 0 -- AC0 -- on 68ec030) + 011 TT1 Transparent Translation reg 1 + (aka Access Control reg 1 -- AC1 -- on 68ec030) + + W wide pmmu registers + Possible values: + 001 DRP Dma Root Pointer (68851) + 010 SRP Supervisor Root Pointer (68030, 68851) + 011 CRP Cpu Root Pointer (68030, 68851) + + f function code register (68030, 68851) + 0 SFC + 1 DFC + + V VAL register only (68851) + + X BADx, BACx (16 bit) + 100 BAD Breakpoint Acknowledge Data (68851) + 101 BAC Breakpoint Acknowledge Control (68851) + + Y PSR (68851) (MMUSR on 68030) (ACUSR on 68ec030) + Z PCSR (68851) + + | memory (modes 2-6, 7.*) + + t address test level (68030 only) + Stored as 3 bits, range 0-7. + Also used for breakpoint instruction now. + +*/ + +/* Places to put an operand, for non-general operands: + Characters used: BbCcDdFfGgHhIijkLlMmNnostWw123456789/ + + s source, low bits of first word. + d dest, shifted 9 in first word + 1 second word, shifted 12 + 2 second word, shifted 6 + 3 second word, shifted 0 + 4 third word, shifted 12 + 5 third word, shifted 6 + 6 third word, shifted 0 + 7 second word, shifted 7 + 8 second word, shifted 10 + 9 second word, shifted 5 + E second word, shifted 9 + D store in both place 1 and place 3; for divul and divsl. + B first word, low byte, for branch displacements + W second word (entire), for branch displacements + L second and third words (entire), for branch displacements + (also overloaded for move16) + b second word, low byte + w second word (entire) [variable word/long branch offset for dbra] + W second word (entire) (must be signed 16 bit value) + l second and third word (entire) + g variable branch offset for bra and similar instructions. + The place to store depends on the magnitude of offset. + t store in both place 7 and place 8; for floating point operations + c branch offset for cpBcc operations. + The place to store is word two if bit six of word one is zero, + and words two and three if bit six of word one is one. + i Increment by two, to skip over coprocessor extended operands. Only + works with the 'I' format. + k Dynamic K-factor field. Bits 6-4 of word 2, used as a register number. + Also used for dynamic fmovem instruction. + C floating point coprocessor constant - 7 bits. Also used for static + K-factors... + j Movec register #, stored in 12 low bits of second word. + m For M[S]ACx; 4 bits split with MSB shifted 6 bits in first word + and remaining 3 bits of register shifted 9 bits in first word. + Indicate upper/lower in 1 bit shifted 7 bits in second word. + Use with `R' or `u' format. + n `m' withouth upper/lower indication. (For M[S]ACx; 4 bits split + with MSB shifted 6 bits in first word and remaining 3 bits of + register shifted 9 bits in first word. No upper/lower + indication is done.) Use with `R' or `u' format. + o For M[S]ACw; 4 bits shifted 12 in second word (like `1'). + Indicate upper/lower in 1 bit shifted 7 bits in second word. + Use with `R' or `u' format. + M For M[S]ACw; 4 bits in low bits of first word. Indicate + upper/lower in 1 bit shifted 6 bits in second word. Use with + `R' or `u' format. + N For M[S]ACw; 4 bits in low bits of second word. Indicate + upper/lower in 1 bit shifted 6 bits in second word. Use with + `R' or `u' format. + h shift indicator (scale factor), 1 bit shifted 10 in second word + + Places to put operand, for general operands: + d destination, shifted 6 bits in first word + b source, at low bit of first word, and immediate uses one byte + w source, at low bit of first word, and immediate uses two bytes + l source, at low bit of first word, and immediate uses four bytes + s source, at low bit of first word. + Used sometimes in contexts where immediate is not allowed anyway. + f single precision float, low bit of 1st word, immediate uses 4 bytes + F double precision float, low bit of 1st word, immediate uses 8 bytes + x extended precision float, low bit of 1st word, immediate uses 12 bytes + p packed float, low bit of 1st word, immediate uses 12 bytes + G EMAC accumulator, load (bit 4 2nd word, !bit8 first word) + H EMAC accumulator, non load (bit 4 2nd word, bit 8 first word) + F EMAC ACCx + f EMAC ACCy + I MAC/EMAC scale factor + / Like 's', but set 2nd word, bit 5 if trailing_ampersand set + ] first word, bit 10 +*/ + +extern const struct m68k_opcode m68k_opcodes[]; +extern const struct m68k_opcode_alias m68k_opcode_aliases[]; + +extern const int m68k_numopcodes, m68k_numaliases; + +/* end of m68k-opcode.h */ |