/* mips.h. Mips opcode list for GDB, the GNU debugger.
Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
- 2003, 2004, 2005, 2008, 2009, 2010
+ 2003, 2004, 2005, 2008, 2009, 2010, 2013
Free Software Foundation, Inc.
Contributed by Ralph Campbell and OSF
Commented and modified by Ian Lance Taylor, Cygnus Support
#ifndef _MIPS_H_
#define _MIPS_H_
+#include "bfd.h"
+
/* These are bit masks and shift counts to use to access the various
fields of an instruction. To retrieve the X field of an
instruction, use the expression
#define OP_SH_MTACC_D 13
#define OP_MASK_MTACC_D 0x3
+/* MIPS MCU ASE */
+#define OP_MASK_3BITPOS 0x7
+#define OP_SH_3BITPOS 12
+#define OP_MASK_OFFSET12 0xfff
+#define OP_SH_OFFSET12 0
+
#define OP_OP_COP0 0x10
#define OP_OP_COP1 0x11
#define OP_OP_COP2 0x12
#define OP_OP_SDC2 0x3e
#define OP_OP_SDC3 0x3f /* a.k.a. sd */
+/* MIPS VIRT ASE */
+#define OP_MASK_CODE10 0x3ff
+#define OP_SH_CODE10 11
+
/* Values in the 'VSEL' field. */
#define MDMX_FMTSEL_IMM_QH 0x1d
#define MDMX_FMTSEL_IMM_OB 0x1e
of the operand handling in GAS. The fields below only exist
in the microMIPS encoding, so define each one to have an empty
range. */
-#define OP_MASK_CODE10 0
-#define OP_SH_CODE10 0
#define OP_MASK_TRAP 0
#define OP_SH_TRAP 0
-#define OP_MASK_OFFSET12 0
-#define OP_SH_OFFSET12 0
#define OP_MASK_OFFSET10 0
#define OP_SH_OFFSET10 0
#define OP_MASK_RS3 0
#define OP_SH_MG 0
#define OP_MASK_MH 0
#define OP_SH_MH 0
-#define OP_MASK_MI 0
-#define OP_SH_MI 0
#define OP_MASK_MJ 0
#define OP_SH_MJ 0
#define OP_MASK_ML 0
#define OP_MASK_IMMY 0
#define OP_SH_IMMY 0
+/* Enhanced VA Scheme */
+#define OP_SH_EVAOFFSET 7
+#define OP_MASK_EVAOFFSET 0x1ff
+
+/* Enumerates the various types of MIPS operand. */
+enum mips_operand_type {
+ /* Described by mips_int_operand. */
+ OP_INT,
+
+ /* Described by mips_mapped_int_operand. */
+ OP_MAPPED_INT,
+
+ /* Described by mips_msb_operand. */
+ OP_MSB,
+
+ /* Described by mips_reg_operand. */
+ OP_REG,
+
+ /* Described by mips_reg_pair_operand. */
+ OP_REG_PAIR,
+
+ /* Described by mips_pcrel_operand. */
+ OP_PCREL,
+
+ /* A performance register. The field is 5 bits in size, but the supported
+ values are much more restricted. */
+ OP_PERF_REG,
+
+ /* The final operand in a microMIPS ADDIUSP instruction. It mostly acts
+ as a normal 9-bit signed offset that is multiplied by four, but there
+ are four special cases:
+
+ -2 * 4 => -258 * 4
+ -1 * 4 => -257 * 4
+ 0 * 4 => 256 * 4
+ 1 * 4 => 257 * 4. */
+ OP_ADDIUSP_INT,
+
+ /* The target of a (D)CLO or (D)CLZ instruction. The operand spans two
+ 5-bit register fields, both of which must be set to the destination
+ register. */
+ OP_CLO_CLZ_DEST,
+
+ /* A register list for a microMIPS LWM or SWM instruction. The operand
+ size determines whether the 16-bit or 32-bit encoding is required. */
+ OP_LWM_SWM_LIST,
+
+ /* The register list for an emulated MIPS16 ENTRY or EXIT instruction. */
+ OP_ENTRY_EXIT_LIST,
+
+ /* The register list and frame size for a MIPS16 SAVE or RESTORE
+ instruction. */
+ OP_SAVE_RESTORE_LIST,
+
+ /* A 10-bit field VVVVVNNNNN used for octobyte and quadhalf instructions:
+
+ V Meaning
+ ----- -------
+ 0EEE0 8 copies of $vN[E], OB format
+ 0EE01 4 copies of $vN[E], QH format
+ 10110 all 8 elements of $vN, OB format
+ 10101 all 4 elements of $vN, QH format
+ 11110 8 copies of immediate N, OB format
+ 11101 4 copies of immediate N, QH format. */
+ OP_MDMX_IMM_REG,
+
+ /* A register operand that must match the destination register. */
+ OP_REPEAT_DEST_REG,
+
+ /* A register operand that must match the previous register. */
+ OP_REPEAT_PREV_REG,
+
+ /* $pc, which has no encoding in the architectural instruction. */
+ OP_PC
+};
+
+/* Enumerates the types of MIPS register. */
+enum mips_reg_operand_type {
+ /* General registers $0-$31. Software names like $at can also be used. */
+ OP_REG_GP,
+
+ /* Floating-point registers $f0-$f31. */
+ OP_REG_FP,
+
+ /* Coprocessor condition code registers $cc0-$cc7. FPU condition codes
+ can also be written $fcc0-$fcc7. */
+ OP_REG_CCC,
+
+ /* FPRs used in a vector capacity. They can be written $f0-$f31
+ or $v0-$v31, although the latter form is not used for the VR5400
+ vector instructions. */
+ OP_REG_VEC,
+
+ /* DSP accumulator registers $ac0-$ac3. */
+ OP_REG_ACC,
+
+ /* Coprocessor registers $0-$31. Mnemonic names like c0_cause can
+ also be used in some contexts. */
+ OP_REG_COPRO,
+
+ /* Hardware registers $0-$31. Mnemonic names like hwr_cpunum can
+ also be used in some contexts. */
+ OP_REG_HW
+};
+
+/* Base class for all operands. */
+struct mips_operand
+{
+ /* The type of the operand. */
+ enum mips_operand_type type;
+
+ /* The operand occupies SIZE bits of the instruction, starting at LSB. */
+ unsigned short size;
+ unsigned short lsb;
+};
+
+/* Describes an integer operand with a regular encoding pattern. */
+struct mips_int_operand
+{
+ struct mips_operand root;
+
+ /* The low ROOT.SIZE bits of MAX_VAL encodes (MAX_VAL + BIAS) << SHIFT.
+ The cyclically previous field value encodes 1 << SHIFT less than that,
+ and so on. E.g.
+
+ - for { { T, 4, L }, 14, 0, 0 }, field values 0...14 encode themselves,
+ but 15 encodes -1.
+
+ - { { T, 8, L }, 127, 0, 2 } is a normal signed 8-bit operand that is
+ shifted left two places.
+
+ - { { T, 3, L }, 8, 0, 0 } is a normal unsigned 3-bit operand except
+ that 0 encodes 8.
+
+ - { { ... }, 0, 1, 3 } means that N encodes (N + 1) << 3. */
+ unsigned int max_val;
+ int bias;
+ unsigned int shift;
+
+ /* True if the operand should be printed as hex rather than decimal. */
+ bfd_boolean print_hex;
+};
+
+/* Uses a lookup table to describe a small integer operand. */
+struct mips_mapped_int_operand
+{
+ struct mips_operand root;
+
+ /* Maps each encoding value to the integer that it represents. */
+ const int *int_map;
+
+ /* True if the operand should be printed as hex rather than decimal. */
+ bfd_boolean print_hex;
+};
+
+/* An operand that encodes the most significant bit position of a bitfield.
+ Given a bitfield that spans bits [MSB, LSB], some operands of this type
+ encode MSB directly while others encode MSB - LSB. Each operand of this
+ type is preceded by an integer operand that specifies LSB.
+
+ The assembly form varies between instructions. For some instructions,
+ such as EXT, the operand is written as the bitfield size. For others,
+ such as EXTS, it is written in raw MSB - LSB form. */
+struct mips_msb_operand
+{
+ struct mips_operand root;
+
+ /* The assembly-level operand encoded by a field value of 0. */
+ int bias;
+
+ /* True if the operand encodes MSB directly, false if it encodes
+ MSB - LSB. */
+ bfd_boolean add_lsb;
+
+ /* The maximum value of MSB + 1. */
+ unsigned int opsize;
+};
+
+/* Describes a single register operand. */
+struct mips_reg_operand
+{
+ struct mips_operand root;
+
+ /* The type of register. */
+ enum mips_reg_operand_type reg_type;
+
+ /* If nonnull, REG_MAP[N] gives the register associated with encoding N,
+ otherwise the encoding is the same as the register number. */
+ const unsigned char *reg_map;
+};
+
+/* Describes an operand that encodes a pair of registers. */
+struct mips_reg_pair_operand
+{
+ struct mips_operand root;
+
+ /* The type of register. */
+ enum mips_reg_operand_type reg_type;
+
+ /* Encoding N represents REG1_MAP[N], REG2_MAP[N]. */
+ unsigned char *reg1_map;
+ unsigned char *reg2_map;
+};
+
+/* Describes an operand that is calculated relative to a base PC.
+ The base PC is usually the address of the following instruction,
+ but the rules for MIPS16 instructions like ADDIUPC are more complicated. */
+struct mips_pcrel_operand
+{
+ /* Encodes the offset. */
+ struct mips_int_operand root;
+
+ /* The low ALIGN_LOG2 bits of the base PC are cleared to give PC',
+ which is then added to the offset encoded by ROOT. */
+ unsigned int align_log2 : 8;
+
+ /* If INCLUDE_ISA_BIT, the ISA bit of the original base PC is then
+ reinstated. This is true for jumps and branches and false for
+ PC-relative data instructions. */
+ unsigned int include_isa_bit : 1;
+
+ /* If FLIP_ISA_BIT, the ISA bit of the result is inverted.
+ This is true for JALX and false otherwise. */
+ unsigned int flip_isa_bit : 1;
+};
+
+/* Return a version of INSN in which the field specified by OPERAND
+ has value UVAL. */
+
+static inline unsigned int
+mips_insert_operand (const struct mips_operand *operand, unsigned int insn,
+ unsigned int uval)
+{
+ unsigned int mask;
+
+ mask = (1 << operand->size) - 1;
+ insn &= ~(mask << operand->lsb);
+ insn |= (uval & mask) << operand->lsb;
+ return insn;
+}
+
+/* Extract OPERAND from instruction INSN. */
+
+static inline unsigned int
+mips_extract_operand (const struct mips_operand *operand, unsigned int insn)
+{
+ return (insn >> operand->lsb) & ((1 << operand->size) - 1);
+}
+
+/* UVAL is the value encoded by OPERAND. Return it in signed form. */
+
+static inline int
+mips_signed_operand (const struct mips_operand *operand, unsigned int uval)
+{
+ unsigned int sign_bit, mask;
+
+ mask = (1 << operand->size) - 1;
+ sign_bit = 1 << (operand->size - 1);
+ return ((uval + sign_bit) & mask) - sign_bit;
+}
+
+/* Return the integer that OPERAND encodes as UVAL. */
+
+static inline int
+mips_decode_int_operand (const struct mips_int_operand *operand,
+ unsigned int uval)
+{
+ uval |= (operand->max_val - uval) & -(1 << operand->root.size);
+ uval += operand->bias;
+ uval <<= operand->shift;
+ return uval;
+}
+
+/* Return the maximum value that can be encoded by OPERAND. */
+
+static inline int
+mips_int_operand_max (const struct mips_int_operand *operand)
+{
+ return (operand->max_val + operand->bias) << operand->shift;
+}
+
+/* Return the minimum value that can be encoded by OPERAND. */
+
+static inline int
+mips_int_operand_min (const struct mips_int_operand *operand)
+{
+ unsigned int mask;
+
+ mask = (1 << operand->root.size) - 1;
+ return mips_int_operand_max (operand) - (mask << operand->shift);
+}
+
+/* Return the register that OPERAND encodes as UVAL. */
+
+static inline int
+mips_decode_reg_operand (const struct mips_reg_operand *operand,
+ unsigned int uval)
+{
+ if (operand->reg_map)
+ uval = operand->reg_map[uval];
+ return uval;
+}
+
+/* PC-relative operand OPERAND has value UVAL and is relative to BASE_PC.
+ Return the address that it encodes. */
+
+static inline bfd_vma
+mips_decode_pcrel_operand (const struct mips_pcrel_operand *operand,
+ bfd_vma base_pc, unsigned int uval)
+{
+ bfd_vma addr;
+
+ addr = base_pc & -(1 << operand->align_log2);
+ addr += mips_decode_int_operand (&operand->root, uval);
+ if (operand->include_isa_bit)
+ addr |= base_pc & 1;
+ if (operand->flip_isa_bit)
+ addr ^= 1;
+ return addr;
+}
+
/* This structure holds information for a particular instruction. */
struct mips_opcode
/* A collection of bits describing the instruction sets of which this
instruction or macro is a member. */
unsigned long membership;
+ /* A collection of bits describing the ASE of which this instruction
+ or macro is a member. */
+ unsigned long ase;
+ /* A collection of bits describing the instruction sets of which this
+ instruction or macro is not a member. */
+ unsigned long exclusions;
};
/* These are the characters which may appear in the args field of an
Each of these characters corresponds to a mask field defined above.
- "1" 5 bit sync type (OP_*_SHAMT)
+ "1" 5 bit sync type (OP_*_STYPE)
"<" 5 bit shift amount (OP_*_SHAMT)
">" shift amount between 32 and 63, stored after subtracting 32 (OP_*_SHAMT)
"a" 26 bit target address (OP_*_TARGET)
+ "+i" likewise, but flips bit 0
"b" 5 bit base register (OP_*_RS)
"c" 10 bit breakpoint code (OP_*_CODE)
"d" 5 bit destination register specifier (OP_*_RD)
"i" 16 bit unsigned immediate (OP_*_IMMEDIATE)
"j" 16 bit signed immediate (OP_*_DELTA)
"k" 5 bit cache opcode in target register position (OP_*_CACHE)
- Also used for immediate operands in vr5400 vector insns.
"o" 16 bit signed offset (OP_*_DELTA)
"p" 16 bit PC relative branch target address (OP_*_DELTA)
"q" 10 bit extra breakpoint code (OP_*_CODE2)
"P" 5 bit performance-monitor register (OP_*_PERFREG)
"e" 5 bit vector register byte specifier (OP_*_VECBYTE)
"%" 3 bit immediate vr5400 vector alignment operand (OP_*_VECALIGN)
- see also "k" above
- "+D" Combined destination register ("G") and sel ("H") for CP0 ops,
- for pretty-printing in disassembly only.
Macro instructions:
"A" General 32 bit expression
"f" 32 bit floating point constant
"l" 32 bit floating point constant in .lit4
- MDMX instruction operands (note that while these use the FP register
- fields, they accept both $fN and $vN names for the registers):
- "O" MDMX alignment offset (OP_*_ALN)
- "Q" MDMX vector/scalar/immediate source (OP_*_VSEL and OP_*_FT)
- "X" MDMX destination register (OP_*_FD)
- "Y" MDMX source register (OP_*_FS)
- "Z" MDMX source register (OP_*_FT)
+ MDMX and VR5400 instruction operands (note that while these use the
+ FP register fields, the MDMX instructions accept both $fN and $vN names
+ for the registers):
+ "O" alignment offset (OP_*_ALN)
+ "Q" vector/scalar/immediate source (OP_*_VSEL and OP_*_FT)
+ "X" destination register (OP_*_FD)
+ "Y" source register (OP_*_FS)
+ "Z" source register (OP_*_FT)
DSP ASE usage:
"2" 2 bit unsigned immediate for byte align (OP_*_BP)
"&" 2 bit dsp/smartmips accumulator register (OP_*_MTACC_D)
"g" 5 bit coprocessor 1 and 2 destination register (OP_*_RD)
"+t" 5 bit coprocessor 0 destination register (OP_*_RT)
- "+T" 5 bit coprocessor 0 destination register (OP_*_RT) - disassembly only
+
+ MCU ASE usage:
+ "~" 12 bit offset (OP_*_OFFSET12)
+ "\" 3 bit position for aset and aclr (OP_*_3BITPOS)
+
+ VIRT ASE usage:
+ "+J" 10-bit hypcall code (OP_*CODE10)
UDI immediates:
"+1" UDI immediate bits 6-10
"+P" Position field of cins/exts aliasing cins32/exts32. Matches if
32 <= pos < 64, otherwise skips to next candidate.
"+Q" Immediate field of seqi/snei. Enforces -512 <= imm < 512.
- "+s" Length-minus-one field of cins/exts. Enforces: 0 <= lenm1 < 32.
- "+S" Length-minus-one field of cins32/exts32 or cins/exts aliasing
- cint32/exts32. Enforces non-negative value and that
- pos + lenm1 < 32 or pos + lenm1 < 64 depending whether previous
- position field is "+p" or "+P".
+ "+s" Length-minus-one field of cins32/exts32. Requires msb position
+ of the field to be <= 31.
+ "+S" Length-minus-one field of cins/exts. Requires msb position
+ of the field to be <= 63.
Loongson-3A:
"+a" 8-bit signed offset in bit 6 (OP_*_OFFSET_A)
"+z" 5-bit rz register (OP_*_RZ)
"+Z" 5-bit fz register (OP_*_FZ)
+ Enhanced VA Scheme:
+ "+j" 9-bit signed offset in bit 7 (OP_*_EVAOFFSET)
+
Other:
"()" parens surrounding optional value
"," separates operands
- "[]" brackets around index for vector-op scalar operand specifier (vr5400)
"+" Start of extension sequence.
Characters used so far, for quick reference when adding more:
"1234567890"
- "%[]<>(),+:'@!$*&"
+ "%[]<>(),+:'@!$*&\~"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"abcdefghijklopqrstuvwxz"
Extension character sequences used so far ("+" followed by the
following), for quick reference when adding more:
"1234"
- "ABCDEFGHIPQSTXZ"
- "abcpstxz"
+ "ABCEFGHIJPQSXZ"
+ "abcijpstxz"
*/
/* These are the bits which may be set in the pinfo field of an
instructions, if it is not equal to INSN_MACRO. */
-/* Modifies the general purpose register in OP_*_RD. */
-#define INSN_WRITE_GPR_D 0x00000001
-/* Modifies the general purpose register in OP_*_RT. */
-#define INSN_WRITE_GPR_T 0x00000002
+/* Writes to operand number N. */
+#define INSN_WRITE_SHIFT 0
+#define INSN_WRITE_1 0x00000001
+#define INSN_WRITE_2 0x00000002
+#define INSN_WRITE_ALL 0x00000003
+/* Reads from operand number N. */
+#define INSN_READ_SHIFT 2
+#define INSN_READ_1 0x00000004
+#define INSN_READ_2 0x00000008
+#define INSN_READ_3 0x00000010
+#define INSN_READ_4 0x00000020
+#define INSN_READ_ALL 0x0000003c
/* Modifies general purpose register 31. */
-#define INSN_WRITE_GPR_31 0x00000004
-/* Modifies the floating point register in OP_*_FD. */
-#define INSN_WRITE_FPR_D 0x00000008
-/* Modifies the floating point register in OP_*_FS. */
-#define INSN_WRITE_FPR_S 0x00000010
-/* Modifies the floating point register in OP_*_FT. */
-#define INSN_WRITE_FPR_T 0x00000020
-/* Reads the general purpose register in OP_*_RS. */
-#define INSN_READ_GPR_S 0x00000040
-/* Reads the general purpose register in OP_*_RT. */
-#define INSN_READ_GPR_T 0x00000080
-/* Reads the floating point register in OP_*_FS. */
-#define INSN_READ_FPR_S 0x00000100
-/* Reads the floating point register in OP_*_FT. */
-#define INSN_READ_FPR_T 0x00000200
-/* Reads the floating point register in OP_*_FR. */
-#define INSN_READ_FPR_R 0x00000400
+#define INSN_WRITE_GPR_31 0x00000040
/* Modifies coprocessor condition code. */
-#define INSN_WRITE_COND_CODE 0x00000800
+#define INSN_WRITE_COND_CODE 0x00000080
/* Reads coprocessor condition code. */
-#define INSN_READ_COND_CODE 0x00001000
+#define INSN_READ_COND_CODE 0x00000100
/* TLB operation. */
-#define INSN_TLB 0x00002000
+#define INSN_TLB 0x00000200
/* Reads coprocessor register other than floating point register. */
-#define INSN_COP 0x00004000
+#define INSN_COP 0x00000400
/* Instruction loads value from memory, requiring delay. */
-#define INSN_LOAD_MEMORY_DELAY 0x00008000
+#define INSN_LOAD_MEMORY_DELAY 0x00000800
/* Instruction loads value from coprocessor, requiring delay. */
-#define INSN_LOAD_COPROC_DELAY 0x00010000
+#define INSN_LOAD_COPROC_DELAY 0x00001000
/* Instruction has unconditional branch delay slot. */
-#define INSN_UNCOND_BRANCH_DELAY 0x00020000
+#define INSN_UNCOND_BRANCH_DELAY 0x00002000
/* Instruction has conditional branch delay slot. */
-#define INSN_COND_BRANCH_DELAY 0x00040000
+#define INSN_COND_BRANCH_DELAY 0x00004000
/* Conditional branch likely: if branch not taken, insn nullified. */
-#define INSN_COND_BRANCH_LIKELY 0x00080000
+#define INSN_COND_BRANCH_LIKELY 0x00008000
/* Moves to coprocessor register, requiring delay. */
-#define INSN_COPROC_MOVE_DELAY 0x00100000
+#define INSN_COPROC_MOVE_DELAY 0x00010000
/* Loads coprocessor register from memory, requiring delay. */
-#define INSN_COPROC_MEMORY_DELAY 0x00200000
+#define INSN_COPROC_MEMORY_DELAY 0x00020000
/* Reads the HI register. */
-#define INSN_READ_HI 0x00400000
+#define INSN_READ_HI 0x00040000
/* Reads the LO register. */
-#define INSN_READ_LO 0x00800000
+#define INSN_READ_LO 0x00080000
/* Modifies the HI register. */
-#define INSN_WRITE_HI 0x01000000
+#define INSN_WRITE_HI 0x00100000
/* Modifies the LO register. */
-#define INSN_WRITE_LO 0x02000000
+#define INSN_WRITE_LO 0x00200000
/* Not to be placed in a branch delay slot, either architecturally
or for ease of handling (such as with instructions that take a trap). */
-#define INSN_NO_DELAY_SLOT 0x04000000
+#define INSN_NO_DELAY_SLOT 0x00400000
/* Instruction stores value into memory. */
-#define INSN_STORE_MEMORY 0x08000000
+#define INSN_STORE_MEMORY 0x00800000
/* Instruction uses single precision floating point. */
-#define FP_S 0x10000000
+#define FP_S 0x01000000
/* Instruction uses double precision floating point. */
-#define FP_D 0x20000000
+#define FP_D 0x02000000
/* Instruction is part of the tx39's integer multiply family. */
-#define INSN_MULT 0x40000000
+#define INSN_MULT 0x04000000
+/* Reads general purpose register 24. */
+#define INSN_READ_GPR_24 0x08000000
+/* Writes to general purpose register 24. */
+#define INSN_WRITE_GPR_24 0x10000000
+/* A user-defined instruction. */
+#define INSN_UDI 0x20000000
/* Instruction is actually a macro. It should be ignored by the
disassembler, and requires special treatment by the assembler. */
#define INSN_MACRO 0xffffffff
only be set for macros. For instructions, FP_D in pinfo carries the
same information. */
#define INSN2_M_FP_D 0x00000010
-/* Modifies the general purpose register in OP_*_RZ. */
-#define INSN2_WRITE_GPR_Z 0x00000020
-/* Modifies the floating point register in OP_*_FZ. */
-#define INSN2_WRITE_FPR_Z 0x00000040
-/* Reads the general purpose register in OP_*_RZ. */
-#define INSN2_READ_GPR_Z 0x00000080
-/* Reads the floating point register in OP_*_FZ. */
-#define INSN2_READ_FPR_Z 0x00000100
-/* Reads the general purpose register in OP_*_RD. */
-#define INSN2_READ_GPR_D 0x00000200
-
-
/* Instruction has a branch delay slot that requires a 16-bit instruction. */
-#define INSN2_BRANCH_DELAY_16BIT 0x00000400
+#define INSN2_BRANCH_DELAY_16BIT 0x00000020
/* Instruction has a branch delay slot that requires a 32-bit instruction. */
-#define INSN2_BRANCH_DELAY_32BIT 0x00000800
-/* Modifies the general purpose register in MICROMIPSOP_*_RS. */
-#define INSN2_WRITE_GPR_S 0x00001000
-/* Reads the floating point register in MICROMIPSOP_*_FD. */
-#define INSN2_READ_FPR_D 0x00002000
-/* Reads/Writes the general purpose registers in MICROMIPSOP_*_MB. */
-#define INSN2_MOD_GPR_MB 0x00004000
-/* Reads/Writes the general purpose registers in MICROMIPSOP_*_MC. */
-#define INSN2_MOD_GPR_MC 0x00008000
-/* Reads/Writes the general purpose registers in MICROMIPSOP_*_MD. */
-#define INSN2_MOD_GPR_MD 0x00010000
-/* Reads/Writes the general purpose registers in MICROMIPSOP_*_ME. */
-#define INSN2_MOD_GPR_ME 0x00020000
-/* Reads/Writes the general purpose registers in MICROMIPSOP_*_MF. */
-#define INSN2_MOD_GPR_MF 0x00040000
-/* Reads/Writes the general purpose registers in MICROMIPSOP_*_MG. */
-#define INSN2_MOD_GPR_MG 0x00080000
-/* Reads/Writes the general purpose registers in MICROMIPSOP_*_MJ. */
-#define INSN2_MOD_GPR_MJ 0x00100000
-/* Reads/Writes the general purpose registers in MICROMIPSOP_*_MP. */
-#define INSN2_MOD_GPR_MP 0x00200000
-/* Reads/Writes the general purpose registers in MICROMIPSOP_*_MQ. */
-#define INSN2_MOD_GPR_MQ 0x00400000
-/* Reads/Writes the stack pointer ($29). */
-#define INSN2_MOD_SP 0x00800000
+#define INSN2_BRANCH_DELAY_32BIT 0x00000040
+/* Writes to the stack pointer ($29). */
+#define INSN2_WRITE_SP 0x00000080
+/* Reads from the stack pointer ($29). */
+#define INSN2_READ_SP 0x00000100
/* Reads the RA ($31) register. */
-#define INSN2_READ_GPR_31 0x01000000
-/* Reads the global pointer ($28). */
-#define INSN2_READ_GP 0x02000000
+#define INSN2_READ_GPR_31 0x00000200
/* Reads the program counter ($pc). */
-#define INSN2_READ_PC 0x04000000
+#define INSN2_READ_PC 0x00000400
/* Is an unconditional branch insn. */
-#define INSN2_UNCOND_BRANCH 0x08000000
+#define INSN2_UNCOND_BRANCH 0x00000800
/* Is a conditional branch insn. */
-#define INSN2_COND_BRANCH 0x10000000
-/* Reads/Writes the general purpose registers in MICROMIPSOP_*_MH/I. */
-#define INSN2_MOD_GPR_MHI 0x20000000
-/* Reads/Writes the general purpose registers in MICROMIPSOP_*_MM. */
-#define INSN2_MOD_GPR_MM 0x40000000
-/* Reads/Writes the general purpose registers in MICROMIPSOP_*_MN. */
-#define INSN2_MOD_GPR_MN 0x80000000
+#define INSN2_COND_BRANCH 0x00001000
+/* Reads from $16. This is true of the MIPS16 0x6500 nop. */
+#define INSN2_READ_GPR_16 0x00002000
/* Masks used to mark instructions to indicate which MIPS ISA level
they were introduced in. INSN_ISA_MASK masks an enumeration that
{ 0x0001, 0x0003, 0x0607, 0x1e0f, 0x3e1f, 0x0a23, 0x3e63, 0x3ebf, 0x3fff };
/* Masks used for Chip specific instructions. */
-#define INSN_CHIP_MASK 0xc3ff0c20
+#define INSN_CHIP_MASK 0xc3ff0f20
/* Cavium Networks Octeon instructions. */
#define INSN_OCTEON 0x00000800
+#define INSN_OCTEONP 0x00000200
+#define INSN_OCTEON2 0x00000100
-/* Masks used for MIPS-defined ASEs. */
-#define INSN_ASE_MASK 0x3c00f000
-
-/* DSP ASE */
-#define INSN_DSP 0x00001000
-#define INSN_DSP64 0x00002000
-
-/* 0x00004000 is unused. */
-
-/* MIPS-3D ASE */
-#define INSN_MIPS3D 0x00008000
+/* MIPS R5900 instruction */
+#define INSN_5900 0x00004000
/* MIPS R4650 instruction. */
#define INSN_4650 0x00010000
/* NEC VR5500 instruction. */
#define INSN_5500 0x02000000
-/* MDMX ASE */
-#define INSN_MDMX 0x04000000
-/* MT ASE */
-#define INSN_MT 0x08000000
-/* SmartMIPS ASE */
-#define INSN_SMARTMIPS 0x10000000
-/* DSP R2 ASE */
-#define INSN_DSPR2 0x20000000
/* ST Microelectronics Loongson 2E. */
#define INSN_LOONGSON_2E 0x40000000
/* ST Microelectronics Loongson 2F. */
/* Loongson 3A. */
#define INSN_LOONGSON_3A 0x00000400
/* RMI Xlr instruction */
-#define INSN_XLR 0x00000020
+#define INSN_XLR 0x00000020
+
+/* DSP ASE */
+#define ASE_DSP 0x00000001
+#define ASE_DSP64 0x00000002
+/* DSP R2 ASE */
+#define ASE_DSPR2 0x00000004
+/* Enhanced VA Scheme */
+#define ASE_EVA 0x00000008
+/* MCU (MicroController) ASE */
+#define ASE_MCU 0x00000010
+/* MDMX ASE */
+#define ASE_MDMX 0x00000020
+/* MIPS-3D ASE */
+#define ASE_MIPS3D 0x00000040
+/* MT ASE */
+#define ASE_MT 0x00000080
+/* SmartMIPS ASE */
+#define ASE_SMARTMIPS 0x00000100
+/* Virtualization ASE */
+#define ASE_VIRT 0x00000200
+#define ASE_VIRT64 0x00000400
/* MIPS ISA defines, use instead of hardcoding ISA level. */
#define CPU_R5000 5000
#define CPU_VR5400 5400
#define CPU_VR5500 5500
+#define CPU_R5900 5900
#define CPU_R6000 6000
#define CPU_RM7000 7000
#define CPU_R8000 8000
#define CPU_LOONGSON_2F 3002
#define CPU_LOONGSON_3A 3003
#define CPU_OCTEON 6501
+#define CPU_OCTEONP 6601
+#define CPU_OCTEON2 6502
#define CPU_XLR 887682 /* decimal 'XLR' */
+/* Return true if the given CPU is included in INSN_* mask MASK. */
+
+static inline bfd_boolean
+cpu_is_member (int cpu, unsigned int mask)
+{
+ switch (cpu)
+ {
+ case CPU_R4650:
+ case CPU_RM7000:
+ case CPU_RM9000:
+ return (mask & INSN_4650) != 0;
+
+ case CPU_R4010:
+ return (mask & INSN_4010) != 0;
+
+ case CPU_VR4100:
+ return (mask & INSN_4100) != 0;
+
+ case CPU_R3900:
+ return (mask & INSN_3900) != 0;
+
+ case CPU_R10000:
+ case CPU_R12000:
+ case CPU_R14000:
+ case CPU_R16000:
+ return (mask & INSN_10000) != 0;
+
+ case CPU_SB1:
+ return (mask & INSN_SB1) != 0;
+
+ case CPU_R4111:
+ return (mask & INSN_4111) != 0;
+
+ case CPU_VR4120:
+ return (mask & INSN_4120) != 0;
+
+ case CPU_VR5400:
+ return (mask & INSN_5400) != 0;
+
+ case CPU_VR5500:
+ return (mask & INSN_5500) != 0;
+
+ case CPU_R5900:
+ return (mask & INSN_5900) != 0;
+
+ case CPU_LOONGSON_2E:
+ return (mask & INSN_LOONGSON_2E) != 0;
+
+ case CPU_LOONGSON_2F:
+ return (mask & INSN_LOONGSON_2F) != 0;
+
+ case CPU_LOONGSON_3A:
+ return (mask & INSN_LOONGSON_3A) != 0;
+
+ case CPU_OCTEON:
+ return (mask & INSN_OCTEON) != 0;
+
+ case CPU_OCTEONP:
+ return (mask & INSN_OCTEONP) != 0;
+
+ case CPU_OCTEON2:
+ return (mask & INSN_OCTEON2) != 0;
+
+ case CPU_XLR:
+ return (mask & INSN_XLR) != 0;
+
+ default:
+ return FALSE;
+ }
+}
+
/* Test for membership in an ISA including chip specific ISAs. INSN
is pointer to an element of the opcode table; ISA is the specified
ISA/ASE bitmask to test against; and CPU is the CPU specific ISA to
- test, or zero if no CPU specific ISA test is desired. */
-
-#define OPCODE_IS_MEMBER(insn, isa, cpu) \
- (((isa & INSN_ISA_MASK) != 0 \
- && ((insn)->membership & INSN_ISA_MASK) != 0 \
- && ((mips_isa_table [(isa & INSN_ISA_MASK) - 1] >> \
- (((insn)->membership & INSN_ISA_MASK) - 1)) & 1) != 0) \
- || ((isa & ~INSN_ISA_MASK) \
- & ((insn)->membership & ~INSN_ISA_MASK)) != 0 \
- || (cpu == CPU_R4650 && ((insn)->membership & INSN_4650) != 0) \
- || (cpu == CPU_RM7000 && ((insn)->membership & INSN_4650) != 0) \
- || (cpu == CPU_RM9000 && ((insn)->membership & INSN_4650) != 0) \
- || (cpu == CPU_R4010 && ((insn)->membership & INSN_4010) != 0) \
- || (cpu == CPU_VR4100 && ((insn)->membership & INSN_4100) != 0) \
- || (cpu == CPU_R3900 && ((insn)->membership & INSN_3900) != 0) \
- || ((cpu == CPU_R10000 || cpu == CPU_R12000 || cpu == CPU_R14000 \
- || cpu == CPU_R16000) \
- && ((insn)->membership & INSN_10000) != 0) \
- || (cpu == CPU_SB1 && ((insn)->membership & INSN_SB1) != 0) \
- || (cpu == CPU_R4111 && ((insn)->membership & INSN_4111) != 0) \
- || (cpu == CPU_VR4120 && ((insn)->membership & INSN_4120) != 0) \
- || (cpu == CPU_VR5400 && ((insn)->membership & INSN_5400) != 0) \
- || (cpu == CPU_VR5500 && ((insn)->membership & INSN_5500) != 0) \
- || (cpu == CPU_LOONGSON_2E \
- && ((insn)->membership & INSN_LOONGSON_2E) != 0) \
- || (cpu == CPU_LOONGSON_2F \
- && ((insn)->membership & INSN_LOONGSON_2F) != 0) \
- || (cpu == CPU_LOONGSON_3A \
- && ((insn)->membership & INSN_LOONGSON_3A) != 0) \
- || (cpu == CPU_OCTEON \
- && ((insn)->membership & INSN_OCTEON) != 0) \
- || (cpu == CPU_XLR && ((insn)->membership & INSN_XLR) != 0) \
- || 0) /* Please keep this term for easier source merging. */
+ test, or zero if no CPU specific ISA test is desired. Return true
+ if instruction INSN is available to the given ISA and CPU. */
+
+static inline bfd_boolean
+opcode_is_member (const struct mips_opcode *insn, int isa, int ase, int cpu)
+{
+ if (!cpu_is_member (cpu, insn->exclusions))
+ {
+ /* Test for ISA level compatibility. */
+ if ((isa & INSN_ISA_MASK) != 0
+ && (insn->membership & INSN_ISA_MASK) != 0
+ && ((mips_isa_table[(isa & INSN_ISA_MASK) - 1]
+ >> ((insn->membership & INSN_ISA_MASK) - 1)) & 1) != 0)
+ return TRUE;
+
+ /* Test for ASE compatibility. */
+ if ((ase & insn->ase) != 0)
+ return TRUE;
+
+ /* Test for processor-specific extensions. */
+ if (cpu_is_member (cpu, insn->membership))
+ return TRUE;
+ }
+ return FALSE;
+}
/* This is a list of macro expanded instructions.
_I appended means immediate
- _A appended means address
- _AB appended means address with base register
+ _A appended means target address of a jump
+ _AB appended means address with (possibly zero) base register
_D appended means 64 bit floating point constant
_S appended means 32 bit floating point constant. */
enum
{
M_ABS,
+ M_ACLR_AB,
M_ADD_I,
M_ADDU_I,
M_AND_I,
+ M_ASET_AB,
M_BALIGN,
M_BC1FL,
M_BC1TL,
M_BNE_I,
M_BNEL_I,
M_CACHE_AB,
- M_CACHE_OB,
+ M_CACHEE_AB,
M_DABS,
M_DADD_I,
M_DADDU_I,
M_JALS_1,
M_JALS_2,
M_JALS_A,
- M_L_DOB,
+ M_JRADDIUSP,
+ M_JRC,
M_L_DAB,
M_LA_AB,
- M_LB_A,
M_LB_AB,
- M_LBU_A,
+ M_LBE_AB,
M_LBU_AB,
+ M_LBUE_AB,
M_LCA_AB,
- M_LD_A,
- M_LD_OB,
M_LD_AB,
M_LDC1_AB,
M_LDC2_AB,
- M_LDC2_OB,
+ M_LQC2_AB,
M_LDC3_AB,
M_LDL_AB,
- M_LDL_OB,
M_LDM_AB,
- M_LDM_OB,
M_LDP_AB,
- M_LDP_OB,
M_LDR_AB,
- M_LDR_OB,
- M_LH_A,
M_LH_AB,
- M_LHU_A,
+ M_LHE_AB,
M_LHU_AB,
+ M_LHUE_AB,
M_LI,
M_LI_D,
M_LI_DD,
M_LI_S,
M_LI_SS,
M_LL_AB,
- M_LL_OB,
M_LLD_AB,
- M_LLD_OB,
- M_LS_A,
- M_LW_A,
+ M_LLE_AB,
+ M_LQ_AB,
M_LW_AB,
- M_LWC0_A,
+ M_LWE_AB,
M_LWC0_AB,
- M_LWC1_A,
M_LWC1_AB,
- M_LWC2_A,
M_LWC2_AB,
- M_LWC2_OB,
- M_LWC3_A,
M_LWC3_AB,
- M_LWL_A,
M_LWL_AB,
- M_LWL_OB,
+ M_LWLE_AB,
M_LWM_AB,
- M_LWM_OB,
M_LWP_AB,
- M_LWP_OB,
- M_LWR_A,
M_LWR_AB,
- M_LWR_OB,
+ M_LWRE_AB,
M_LWU_AB,
- M_LWU_OB,
M_MSGSND,
M_MSGLD,
M_MSGLD_T,
M_MSGWAIT,
M_MSGWAIT_T,
M_MOVE,
+ M_MOVEP,
M_MUL,
M_MUL_I,
M_MULO,
M_NOR_I,
M_OR_I,
M_PREF_AB,
- M_PREF_OB,
+ M_PREFE_AB,
M_REM_3,
M_REM_3I,
M_REMU_3,
M_DROR_I,
M_ROR_I,
M_S_DA,
- M_S_DOB,
M_S_DAB,
M_S_S,
+ M_SAA_AB,
+ M_SAAD_AB,
M_SC_AB,
- M_SC_OB,
M_SCD_AB,
- M_SCD_OB,
- M_SD_A,
- M_SD_OB,
+ M_SCE_AB,
M_SD_AB,
M_SDC1_AB,
M_SDC2_AB,
- M_SDC2_OB,
+ M_SQC2_AB,
M_SDC3_AB,
M_SDL_AB,
- M_SDL_OB,
M_SDM_AB,
- M_SDM_OB,
M_SDP_AB,
- M_SDP_OB,
M_SDR_AB,
- M_SDR_OB,
M_SEQ,
M_SEQ_I,
M_SGE,
M_SLTU_I,
M_SNE,
M_SNE_I,
- M_SB_A,
M_SB_AB,
- M_SH_A,
+ M_SBE_AB,
M_SH_AB,
- M_SW_A,
+ M_SHE_AB,
+ M_SQ_AB,
M_SW_AB,
- M_SWC0_A,
+ M_SWE_AB,
M_SWC0_AB,
- M_SWC1_A,
M_SWC1_AB,
- M_SWC2_A,
M_SWC2_AB,
- M_SWC2_OB,
- M_SWC3_A,
M_SWC3_AB,
- M_SWL_A,
M_SWL_AB,
- M_SWL_OB,
+ M_SWLE_AB,
M_SWM_AB,
- M_SWM_OB,
M_SWP_AB,
- M_SWP_OB,
- M_SWR_A,
M_SWR_AB,
- M_SWR_OB,
+ M_SWRE_AB,
M_SUB_I,
M_SUBU_I,
M_SUBU_I_2,
M_TNE_I,
M_TRUNCWD,
M_TRUNCWS,
- M_ULD,
- M_ULD_A,
- M_ULH,
- M_ULH_A,
- M_ULHU,
- M_ULHU_A,
- M_ULW,
- M_ULW_A,
- M_USH,
- M_USH_A,
- M_USW,
- M_USW_A,
- M_USD,
- M_USD_A,
+ M_ULD_AB,
+ M_ULH_AB,
+ M_ULHU_AB,
+ M_ULW_AB,
+ M_USH_AB,
+ M_USW_AB,
+ M_USD_AB,
M_XOR_I,
M_COP0,
M_COP1,
Many instructions are short hand for other instructions (i.e., The
jal <register> instruction is short for jalr <register>). */
+extern const struct mips_operand *decode_mips_operand (const char *);
extern const struct mips_opcode mips_builtin_opcodes[];
extern const int bfd_mips_num_builtin_opcodes;
extern struct mips_opcode *mips_opcodes;
"Y" 5 bit MIPS register (MIPS16OP_*_REG32R)
"6" 6 bit unsigned break code (MIPS16OP_*_IMM6)
"a" 26 bit jump address
+ "i" likewise, but flips bit 0
"e" 11 bit extension value
"l" register list for entry instruction
"L" register list for exit instruction
+ "I" an immediate value used for macros
+
The remaining codes may be extended. Except as otherwise noted,
the full extended operand is a 16 bit signed value.
"<" 3 bit unsigned shift count * 0 (MIPS16OP_*_RZ) (full 5 bit unsigned)
#define MIPS16_ALL_ARGS 0xe
#define MIPS16_ALL_STATICS 0xb
-/* For the mips16, we use the same opcode table format and a few of
- the same flags. However, most of the flags are different. */
-
-/* Modifies the register in MIPS16OP_*_RX. */
-#define MIPS16_INSN_WRITE_X 0x00000001
-/* Modifies the register in MIPS16OP_*_RY. */
-#define MIPS16_INSN_WRITE_Y 0x00000002
-/* Modifies the register in MIPS16OP_*_RZ. */
-#define MIPS16_INSN_WRITE_Z 0x00000004
-/* Modifies the T ($24) register. */
-#define MIPS16_INSN_WRITE_T 0x00000008
-/* Modifies the SP ($29) register. */
-#define MIPS16_INSN_WRITE_SP 0x00000010
-/* Modifies the RA ($31) register. */
-#define MIPS16_INSN_WRITE_31 0x00000020
-/* Modifies the general purpose register in MIPS16OP_*_REG32R. */
-#define MIPS16_INSN_WRITE_GPR_Y 0x00000040
-/* Reads the register in MIPS16OP_*_RX. */
-#define MIPS16_INSN_READ_X 0x00000080
-/* Reads the register in MIPS16OP_*_RY. */
-#define MIPS16_INSN_READ_Y 0x00000100
-/* Reads the register in MIPS16OP_*_MOVE32Z. */
-#define MIPS16_INSN_READ_Z 0x00000200
-/* Reads the T ($24) register. */
-#define MIPS16_INSN_READ_T 0x00000400
-/* Reads the SP ($29) register. */
-#define MIPS16_INSN_READ_SP 0x00000800
-/* Reads the RA ($31) register. */
-#define MIPS16_INSN_READ_31 0x00001000
-/* Reads the program counter. */
-#define MIPS16_INSN_READ_PC 0x00002000
-/* Reads the general purpose register in MIPS16OP_*_REGR32. */
-#define MIPS16_INSN_READ_GPR_X 0x00004000
-/* Is an unconditional branch insn. */
-#define MIPS16_INSN_UNCOND_BRANCH 0x00008000
-/* Is a conditional branch insn. */
-#define MIPS16_INSN_COND_BRANCH 0x00010000
-
/* The following flags have the same value for the mips16 opcode
table:
FP_D (never used)
*/
+extern const struct mips_operand *decode_mips16_operand (char, bfd_boolean);
extern const struct mips_opcode mips16_opcodes[];
extern const int bfd_mips16_num_opcodes;
#define MICROMIPSOP_SH_SEL 11
#define MICROMIPSOP_MASK_OFFSET12 0xfff
#define MICROMIPSOP_SH_OFFSET12 0
+#define MICROMIPSOP_MASK_3BITPOS 0x7
+#define MICROMIPSOP_SH_3BITPOS 21
#define MICROMIPSOP_MASK_STYPE 0x1f
#define MICROMIPSOP_SH_STYPE 16
#define MICROMIPSOP_MASK_OFFSET10 0x3ff
#define MICROMIPSOP_SH_MG 0
#define MICROMIPSOP_MASK_MH 0x7
#define MICROMIPSOP_SH_MH 7
-#define MICROMIPSOP_MASK_MI 0x7
-#define MICROMIPSOP_SH_MI 7
#define MICROMIPSOP_MASK_MJ 0x1f
#define MICROMIPSOP_SH_MJ 0
#define MICROMIPSOP_MASK_ML 0x7
#define MICROMIPSOP_MASK_IMMY 0x1ff
#define MICROMIPSOP_SH_IMMY 1
+/* MIPS DSP ASE */
+#define MICROMIPSOP_MASK_DSPACC 0x3
+#define MICROMIPSOP_SH_DSPACC 14
+#define MICROMIPSOP_MASK_DSPSFT 0x3f
+#define MICROMIPSOP_SH_DSPSFT 16
+#define MICROMIPSOP_MASK_SA3 0x7
+#define MICROMIPSOP_SH_SA3 13
+#define MICROMIPSOP_MASK_SA4 0xf
+#define MICROMIPSOP_SH_SA4 12
+#define MICROMIPSOP_MASK_IMM8 0xff
+#define MICROMIPSOP_SH_IMM8 13
+#define MICROMIPSOP_MASK_IMM10 0x3ff
+#define MICROMIPSOP_SH_IMM10 16
+#define MICROMIPSOP_MASK_WRDSP 0x3f
+#define MICROMIPSOP_SH_WRDSP 14
+#define MICROMIPSOP_MASK_BP 0x3
+#define MICROMIPSOP_SH_BP 14
+
/* Placeholders for fields that only exist in the traditional 32-bit
instruction encoding; see the comment above for details. */
#define MICROMIPSOP_MASK_CODE20 0
#define MICROMIPSOP_SH_VECBYTE 0
#define MICROMIPSOP_MASK_VECALIGN 0
#define MICROMIPSOP_SH_VECALIGN 0
-#define MICROMIPSOP_MASK_DSPACC 0
-#define MICROMIPSOP_SH_DSPACC 0
#define MICROMIPSOP_MASK_DSPACC_S 0
#define MICROMIPSOP_SH_DSPACC_S 0
-#define MICROMIPSOP_MASK_DSPSFT 0
-#define MICROMIPSOP_SH_DSPSFT 0
#define MICROMIPSOP_MASK_DSPSFT_7 0
#define MICROMIPSOP_SH_DSPSFT_7 0
-#define MICROMIPSOP_MASK_SA3 0
-#define MICROMIPSOP_SH_SA3 0
-#define MICROMIPSOP_MASK_SA4 0
-#define MICROMIPSOP_SH_SA4 0
-#define MICROMIPSOP_MASK_IMM8 0
-#define MICROMIPSOP_SH_IMM8 0
-#define MICROMIPSOP_MASK_IMM10 0
-#define MICROMIPSOP_SH_IMM10 0
-#define MICROMIPSOP_MASK_WRDSP 0
-#define MICROMIPSOP_SH_WRDSP 0
#define MICROMIPSOP_MASK_RDDSP 0
#define MICROMIPSOP_SH_RDDSP 0
-#define MICROMIPSOP_MASK_BP 0
-#define MICROMIPSOP_SH_BP 0
#define MICROMIPSOP_MASK_MT_U 0
#define MICROMIPSOP_SH_MT_U 0
#define MICROMIPSOP_MASK_MT_H 0
#define MICROMIPSOP_SH_FZ 0
#define MICROMIPSOP_MASK_FZ 0
+/* microMIPS Enhanced VA Scheme */
+#define MICROMIPSOP_SH_EVAOFFSET 0
+#define MICROMIPSOP_MASK_EVAOFFSET 0x1ff
+
/* These are the characters which may appears in the args field of a microMIPS
instruction. They appear in the order in which the fields appear
when the instruction is used. Commas and parentheses in the args
The same register used as both source and target.
"mf" 3-bit MIPS registers 2-7, 16, 17 (MICROMIPSOP_*_MF) at bit 3
"mg" 3-bit MIPS registers 2-7, 16, 17 (MICROMIPSOP_*_MG) at bit 0
- "mh" MIPS registers 4, 5, 6 (MICROMIPSOP_*_MH) at bit 7
- "mi" MIPS registers 5, 6, 7, 21, 22 (MICROMIPSOP_*_MI) at bit 7
- ("mh" and "mi" form a valid 3-bit register pair)
+ "mh" 3-bit MIPS register pair (MICROMIPSOP_*_MH) at bit 7
"mj" 5-bit MIPS registers (MICROMIPSOP_*_MJ) at bit 0
"ml" 3-bit MIPS registers 2-7, 16, 17 (MICROMIPSOP_*_ML) at bit 4
"mm" 3-bit MIPS registers 0, 2, 3, 16-20 (MICROMIPSOP_*_MM) at bit 1
others too).
"." 10-bit signed offset/number (MICROMIPSOP_*_OFFSET10)
- "1" 5-bit sync type (MICROMIPSOP_*_SHAMT)
+ "1" 5-bit sync type (MICROMIPSOP_*_STYPE)
"<" 5-bit shift amount (MICROMIPSOP_*_SHAMT)
">" shift amount between 32 and 63, stored after subtracting 32
(MICROMIPSOP_*_SHAMT)
+ "\" 3-bit position for ASET and ACLR (MICROMIPSOP_*_3BITPOS)
"|" 4-bit trap code (MICROMIPSOP_*_TRAP)
"~" 12-bit signed offset (MICROMIPSOP_*_OFFSET12)
"a" 26-bit target address (MICROMIPSOP_*_TARGET)
+ "+i" likewise, but flips bit 0
"b" 5-bit base register (MICROMIPSOP_*_RS)
"c" 10-bit higher breakpoint code (MICROMIPSOP_*_CODE)
"d" 5-bit destination register specifier (MICROMIPSOP_*_RD)
"h" 5-bit PREFX hint (MICROMIPSOP_*_PREFX)
- "i" 16 bit unsigned immediate (MICROMIPSOP_*_IMMEDIATE)
+ "i" 16-bit unsigned immediate (MICROMIPSOP_*_IMMEDIATE)
"j" 16-bit signed immediate (MICROMIPSOP_*_DELTA)
"k" 5-bit cache opcode in target register position (MICROMIPSOP_*_CACHE)
"n" register list for 32-bit LWM/SWM instruction (MICROMIPSOP_*_RT)
"y" 5-bit source 3 register for ALNV.PS (MICROMIPSOP_*_RS3)
"z" must be zero register
"C" 23-bit coprocessor function code (MICROMIPSOP_*_COPZ)
- "B" 8-bit syscall/wait function code (MICROMIPSOP_*_CODE10)
+ "B" 10-bit syscall/wait function code (MICROMIPSOP_*_CODE10)
"K" 5-bit Hardware Register (RDHWR instruction) (MICROMIPSOP_*_RS)
"+A" 5-bit INS/EXT/DINS/DEXT/DINSM/DEXTM position, which becomes
Coprocessor instructions:
"E" 5-bit target register (MICROMIPSOP_*_RT)
- "G" 5-bit destination register (MICROMIPSOP_*_RD)
+ "G" 5-bit source register (MICROMIPSOP_*_RS)
"H" 3-bit sel field for (D)MTC* and (D)MFC* (MICROMIPSOP_*_SEL)
- "+D" combined destination register ("G") and sel ("H") for CP0 ops,
- for pretty-printing in disassembly only
Macro instructions:
"A" general 32 bit expression
"f" 32-bit floating point constant
"l" 32-bit floating point constant in .lit4
+ DSP ASE usage:
+ "2" 2-bit unsigned immediate for byte align (MICROMIPSOP_*_BP)
+ "3" 3-bit unsigned immediate (MICROMIPSOP_*_SA3)
+ "4" 4-bit unsigned immediate (MICROMIPSOP_*_SA4)
+ "5" 8-bit unsigned immediate (MICROMIPSOP_*_IMM8)
+ "6" 5-bit unsigned immediate (MICROMIPSOP_*_RS)
+ "7" 2-bit DSP accumulator register (MICROMIPSOP_*_DSPACC)
+ "8" 6-bit unsigned immediate (MICROMIPSOP_*_WRDSP)
+ "0" 6-bit signed immediate (MICROMIPSOP_*_DSPSFT)
+ "@" 10-bit signed immediate (MICROMIPSOP_*_IMM10)
+ "^" 5-bit unsigned immediate (MICROMIPSOP_*_RD)
+
+ microMIPS Enhanced VA Scheme:
+ "+j" 9-bit signed offset in bit 0 (OP_*_EVAOFFSET)
+
Other:
"()" parens surrounding optional value
"," separates operands
"m" start of microMIPS extension sequence
Characters used so far, for quick reference when adding more:
- "1234567890"
- "<>(),+.|~"
+ "12345678 0"
+ "<>(),+.@\^|~"
"ABCDEFGHI KLMN RST V "
"abcd f hijklmnopqrstuvw yz"
following), for quick reference when adding more:
""
""
- "ABCDEFGHI"
- ""
+ "ABCEFGHI"
+ "ij"
Extension character sequences used so far ("m" followed by the
following), for quick reference when adding more:
" bcdefghij lmn pq st xyz"
*/
+extern const struct mips_operand *decode_micromips_operand (const char *);
extern const struct mips_opcode micromips_opcodes[];
extern const int bfd_micromips_num_opcodes;
projects / binutils-gdb.git / blobdiff