1118 lines
36 KiB
C
1118 lines
36 KiB
C
/* 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
|
||
Free Software Foundation, Inc.
|
||
Contributed by Ralph Campbell and OSF
|
||
Commented and modified by Ian Lance Taylor, Cygnus Support
|
||
|
||
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. */
|
||
|
||
#ifndef _MIPS_H_
|
||
#define _MIPS_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
|
||
(i >> OP_SH_X) & OP_MASK_X
|
||
To set the same field (to j), use
|
||
i = (i &~ (OP_MASK_X << OP_SH_X)) | (j << OP_SH_X)
|
||
|
||
Make sure you use fields that are appropriate for the instruction,
|
||
of course.
|
||
|
||
The 'i' format uses OP, RS, RT and IMMEDIATE.
|
||
|
||
The 'j' format uses OP and TARGET.
|
||
|
||
The 'r' format uses OP, RS, RT, RD, SHAMT and FUNCT.
|
||
|
||
The 'b' format uses OP, RS, RT and DELTA.
|
||
|
||
The floating point 'i' format uses OP, RS, RT and IMMEDIATE.
|
||
|
||
The floating point 'r' format uses OP, FMT, FT, FS, FD and FUNCT.
|
||
|
||
A breakpoint instruction uses OP, CODE and SPEC (10 bits of the
|
||
breakpoint instruction are not defined; Kane says the breakpoint
|
||
code field in BREAK is 20 bits; yet MIPS assemblers and debuggers
|
||
only use ten bits). An optional two-operand form of break/sdbbp
|
||
allows the lower ten bits to be set too, and MIPS32 and later
|
||
architectures allow 20 bits to be set with a signal operand
|
||
(using CODE20).
|
||
|
||
The syscall instruction uses CODE20.
|
||
|
||
The general coprocessor instructions use COPZ. */
|
||
|
||
#define OP_MASK_OP 0x3f
|
||
#define OP_SH_OP 26
|
||
#define OP_MASK_RS 0x1f
|
||
#define OP_SH_RS 21
|
||
#define OP_MASK_FR 0x1f
|
||
#define OP_SH_FR 21
|
||
#define OP_MASK_FMT 0x1f
|
||
#define OP_SH_FMT 21
|
||
#define OP_MASK_BCC 0x7
|
||
#define OP_SH_BCC 18
|
||
#define OP_MASK_CODE 0x3ff
|
||
#define OP_SH_CODE 16
|
||
#define OP_MASK_CODE2 0x3ff
|
||
#define OP_SH_CODE2 6
|
||
#define OP_MASK_RT 0x1f
|
||
#define OP_SH_RT 16
|
||
#define OP_MASK_FT 0x1f
|
||
#define OP_SH_FT 16
|
||
#define OP_MASK_CACHE 0x1f
|
||
#define OP_SH_CACHE 16
|
||
#define OP_MASK_RD 0x1f
|
||
#define OP_SH_RD 11
|
||
#define OP_MASK_FS 0x1f
|
||
#define OP_SH_FS 11
|
||
#define OP_MASK_PREFX 0x1f
|
||
#define OP_SH_PREFX 11
|
||
#define OP_MASK_CCC 0x7
|
||
#define OP_SH_CCC 8
|
||
#define OP_MASK_CODE20 0xfffff /* 20 bit syscall/breakpoint code. */
|
||
#define OP_SH_CODE20 6
|
||
#define OP_MASK_SHAMT 0x1f
|
||
#define OP_SH_SHAMT 6
|
||
#define OP_MASK_FD 0x1f
|
||
#define OP_SH_FD 6
|
||
#define OP_MASK_TARGET 0x3ffffff
|
||
#define OP_SH_TARGET 0
|
||
#define OP_MASK_COPZ 0x1ffffff
|
||
#define OP_SH_COPZ 0
|
||
#define OP_MASK_IMMEDIATE 0xffff
|
||
#define OP_SH_IMMEDIATE 0
|
||
#define OP_MASK_DELTA 0xffff
|
||
#define OP_SH_DELTA 0
|
||
#define OP_MASK_FUNCT 0x3f
|
||
#define OP_SH_FUNCT 0
|
||
#define OP_MASK_SPEC 0x3f
|
||
#define OP_SH_SPEC 0
|
||
#define OP_SH_LOCC 8 /* FP condition code. */
|
||
#define OP_SH_HICC 18 /* FP condition code. */
|
||
#define OP_MASK_CC 0x7
|
||
#define OP_SH_COP1NORM 25 /* Normal COP1 encoding. */
|
||
#define OP_MASK_COP1NORM 0x1 /* a single bit. */
|
||
#define OP_SH_COP1SPEC 21 /* COP1 encodings. */
|
||
#define OP_MASK_COP1SPEC 0xf
|
||
#define OP_MASK_COP1SCLR 0x4
|
||
#define OP_MASK_COP1CMP 0x3
|
||
#define OP_SH_COP1CMP 4
|
||
#define OP_SH_FORMAT 21 /* FP short format field. */
|
||
#define OP_MASK_FORMAT 0x7
|
||
#define OP_SH_TRUE 16
|
||
#define OP_MASK_TRUE 0x1
|
||
#define OP_SH_GE 17
|
||
#define OP_MASK_GE 0x01
|
||
#define OP_SH_UNSIGNED 16
|
||
#define OP_MASK_UNSIGNED 0x1
|
||
#define OP_SH_HINT 16
|
||
#define OP_MASK_HINT 0x1f
|
||
#define OP_SH_MMI 0 /* Multimedia (parallel) op. */
|
||
#define OP_MASK_MMI 0x3f
|
||
#define OP_SH_MMISUB 6
|
||
#define OP_MASK_MMISUB 0x1f
|
||
#define OP_MASK_PERFREG 0x1f /* Performance monitoring. */
|
||
#define OP_SH_PERFREG 1
|
||
#define OP_SH_SEL 0 /* Coprocessor select field. */
|
||
#define OP_MASK_SEL 0x7 /* The sel field of mfcZ and mtcZ. */
|
||
#define OP_SH_CODE19 6 /* 19 bit wait code. */
|
||
#define OP_MASK_CODE19 0x7ffff
|
||
#define OP_SH_ALN 21
|
||
#define OP_MASK_ALN 0x7
|
||
#define OP_SH_VSEL 21
|
||
#define OP_MASK_VSEL 0x1f
|
||
#define OP_MASK_VECBYTE 0x7 /* Selector field is really 4 bits,
|
||
but 0x8-0xf don't select bytes. */
|
||
#define OP_SH_VECBYTE 22
|
||
#define OP_MASK_VECALIGN 0x7 /* Vector byte-align (alni.ob) op. */
|
||
#define OP_SH_VECALIGN 21
|
||
#define OP_MASK_INSMSB 0x1f /* "ins" MSB. */
|
||
#define OP_SH_INSMSB 11
|
||
#define OP_MASK_EXTMSBD 0x1f /* "ext" MSBD. */
|
||
#define OP_SH_EXTMSBD 11
|
||
|
||
/* MIPS DSP ASE */
|
||
#define OP_SH_DSPACC 11
|
||
#define OP_MASK_DSPACC 0x3
|
||
#define OP_SH_DSPACC_S 21
|
||
#define OP_MASK_DSPACC_S 0x3
|
||
#define OP_SH_DSPSFT 20
|
||
#define OP_MASK_DSPSFT 0x3f
|
||
#define OP_SH_DSPSFT_7 19
|
||
#define OP_MASK_DSPSFT_7 0x7f
|
||
#define OP_SH_SA3 21
|
||
#define OP_MASK_SA3 0x7
|
||
#define OP_SH_SA4 21
|
||
#define OP_MASK_SA4 0xf
|
||
#define OP_SH_IMM8 16
|
||
#define OP_MASK_IMM8 0xff
|
||
#define OP_SH_IMM10 16
|
||
#define OP_MASK_IMM10 0x3ff
|
||
#define OP_SH_WRDSP 11
|
||
#define OP_MASK_WRDSP 0x3f
|
||
#define OP_SH_RDDSP 16
|
||
#define OP_MASK_RDDSP 0x3f
|
||
#define OP_SH_BP 11
|
||
#define OP_MASK_BP 0x3
|
||
|
||
/* MIPS MT ASE */
|
||
#define OP_SH_MT_U 5
|
||
#define OP_MASK_MT_U 0x1
|
||
#define OP_SH_MT_H 4
|
||
#define OP_MASK_MT_H 0x1
|
||
#define OP_SH_MTACC_T 18
|
||
#define OP_MASK_MTACC_T 0x3
|
||
#define OP_SH_MTACC_D 13
|
||
#define OP_MASK_MTACC_D 0x3
|
||
|
||
#define OP_OP_COP0 0x10
|
||
#define OP_OP_COP1 0x11
|
||
#define OP_OP_COP2 0x12
|
||
#define OP_OP_COP3 0x13
|
||
#define OP_OP_LWC1 0x31
|
||
#define OP_OP_LWC2 0x32
|
||
#define OP_OP_LWC3 0x33 /* a.k.a. pref */
|
||
#define OP_OP_LDC1 0x35
|
||
#define OP_OP_LDC2 0x36
|
||
#define OP_OP_LDC3 0x37 /* a.k.a. ld */
|
||
#define OP_OP_SWC1 0x39
|
||
#define OP_OP_SWC2 0x3a
|
||
#define OP_OP_SWC3 0x3b
|
||
#define OP_OP_SDC1 0x3d
|
||
#define OP_OP_SDC2 0x3e
|
||
#define OP_OP_SDC3 0x3f /* a.k.a. sd */
|
||
|
||
/* Values in the 'VSEL' field. */
|
||
#define MDMX_FMTSEL_IMM_QH 0x1d
|
||
#define MDMX_FMTSEL_IMM_OB 0x1e
|
||
#define MDMX_FMTSEL_VEC_QH 0x15
|
||
#define MDMX_FMTSEL_VEC_OB 0x16
|
||
|
||
/* UDI */
|
||
#define OP_SH_UDI1 6
|
||
#define OP_MASK_UDI1 0x1f
|
||
#define OP_SH_UDI2 6
|
||
#define OP_MASK_UDI2 0x3ff
|
||
#define OP_SH_UDI3 6
|
||
#define OP_MASK_UDI3 0x7fff
|
||
#define OP_SH_UDI4 6
|
||
#define OP_MASK_UDI4 0xfffff
|
||
|
||
/* Octeon */
|
||
#define OP_SH_BBITIND 16
|
||
#define OP_MASK_BBITIND 0x1f
|
||
#define OP_SH_CINSPOS 6
|
||
#define OP_MASK_CINSPOS 0x1f
|
||
#define OP_SH_CINSLM1 11
|
||
#define OP_MASK_CINSLM1 0x1f
|
||
#define OP_SH_SEQI 6
|
||
#define OP_MASK_SEQI 0x3ff
|
||
|
||
/* This structure holds information for a particular instruction. */
|
||
|
||
struct mips_opcode
|
||
{
|
||
/* The name of the instruction. */
|
||
const char *name;
|
||
/* A string describing the arguments for this instruction. */
|
||
const char *args;
|
||
/* The basic opcode for the instruction. When assembling, this
|
||
opcode is modified by the arguments to produce the actual opcode
|
||
that is used. If pinfo is INSN_MACRO, then this is 0. */
|
||
unsigned long match;
|
||
/* If pinfo is not INSN_MACRO, then this is a bit mask for the
|
||
relevant portions of the opcode when disassembling. If the
|
||
actual opcode anded with the match field equals the opcode field,
|
||
then we have found the correct instruction. If pinfo is
|
||
INSN_MACRO, then this field is the macro identifier. */
|
||
unsigned long mask;
|
||
/* For a macro, this is INSN_MACRO. Otherwise, it is a collection
|
||
of bits describing the instruction, notably any relevant hazard
|
||
information. */
|
||
unsigned long pinfo;
|
||
/* A collection of additional bits describing the instruction. */
|
||
unsigned long pinfo2;
|
||
/* A collection of bits describing the instruction sets of which this
|
||
instruction or macro is a member. */
|
||
unsigned long membership;
|
||
};
|
||
|
||
/* These are the characters which may appear in the args field of an
|
||
instruction. They appear in the order in which the fields appear
|
||
when the instruction is used. Commas and parentheses in the args
|
||
string are ignored when assembling, and written into the output
|
||
when disassembling.
|
||
|
||
Each of these characters corresponds to a mask field defined above.
|
||
|
||
"1" 5 bit sync type (OP_*_SHAMT)
|
||
"<" 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)
|
||
"b" 5 bit base register (OP_*_RS)
|
||
"c" 10 bit breakpoint code (OP_*_CODE)
|
||
"d" 5 bit destination register specifier (OP_*_RD)
|
||
"h" 5 bit prefx hint (OP_*_PREFX)
|
||
"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)
|
||
"r" 5 bit same register used as both source and target (OP_*_RS)
|
||
"s" 5 bit source register specifier (OP_*_RS)
|
||
"t" 5 bit target register (OP_*_RT)
|
||
"u" 16 bit upper 16 bits of address (OP_*_IMMEDIATE)
|
||
"v" 5 bit same register used as both source and destination (OP_*_RS)
|
||
"w" 5 bit same register used as both target and destination (OP_*_RT)
|
||
"U" 5 bit same destination register in both OP_*_RD and OP_*_RT
|
||
(used by clo and clz)
|
||
"C" 25 bit coprocessor function code (OP_*_COPZ)
|
||
"B" 20 bit syscall/breakpoint function code (OP_*_CODE20)
|
||
"J" 19 bit wait function code (OP_*_CODE19)
|
||
"x" accept and ignore register name
|
||
"z" must be zero register
|
||
"K" 5 bit Hardware Register (rdhwr instruction) (OP_*_RD)
|
||
"+A" 5 bit ins/ext/dins/dext/dinsm/dextm position, which becomes
|
||
LSB (OP_*_SHAMT).
|
||
Enforces: 0 <= pos < 32.
|
||
"+B" 5 bit ins/dins size, which becomes MSB (OP_*_INSMSB).
|
||
Requires that "+A" or "+E" occur first to set position.
|
||
Enforces: 0 < (pos+size) <= 32.
|
||
"+C" 5 bit ext/dext size, which becomes MSBD (OP_*_EXTMSBD).
|
||
Requires that "+A" or "+E" occur first to set position.
|
||
Enforces: 0 < (pos+size) <= 32.
|
||
(Also used by "dext" w/ different limits, but limits for
|
||
that are checked by the M_DEXT macro.)
|
||
"+E" 5 bit dinsu/dextu position, which becomes LSB-32 (OP_*_SHAMT).
|
||
Enforces: 32 <= pos < 64.
|
||
"+F" 5 bit "dinsm/dinsu" size, which becomes MSB-32 (OP_*_INSMSB).
|
||
Requires that "+A" or "+E" occur first to set position.
|
||
Enforces: 32 < (pos+size) <= 64.
|
||
"+G" 5 bit "dextm" size, which becomes MSBD-32 (OP_*_EXTMSBD).
|
||
Requires that "+A" or "+E" occur first to set position.
|
||
Enforces: 32 < (pos+size) <= 64.
|
||
"+H" 5 bit "dextu" size, which becomes MSBD (OP_*_EXTMSBD).
|
||
Requires that "+A" or "+E" occur first to set position.
|
||
Enforces: 32 < (pos+size) <= 64.
|
||
|
||
Floating point instructions:
|
||
"D" 5 bit destination register (OP_*_FD)
|
||
"M" 3 bit compare condition code (OP_*_CCC) (only used for mips4 and up)
|
||
"N" 3 bit branch condition code (OP_*_BCC) (only used for mips4 and up)
|
||
"S" 5 bit fs source 1 register (OP_*_FS)
|
||
"T" 5 bit ft source 2 register (OP_*_FT)
|
||
"R" 5 bit fr source 3 register (OP_*_FR)
|
||
"V" 5 bit same register used as floating source and destination (OP_*_FS)
|
||
"W" 5 bit same register used as floating target and destination (OP_*_FT)
|
||
|
||
Coprocessor instructions:
|
||
"E" 5 bit target register (OP_*_RT)
|
||
"G" 5 bit destination register (OP_*_RD)
|
||
"H" 3 bit sel field for (d)mtc* and (d)mfc* (OP_*_SEL)
|
||
"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
|
||
"I" 32 bit immediate (value placed in imm_expr).
|
||
"+I" 32 bit immediate (value placed in imm2_expr).
|
||
"F" 64 bit floating point constant in .rdata
|
||
"L" 64 bit floating point constant in .lit8
|
||
"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 $vN names for the registers):
|
||
"O" MDMX alignment offset (OP_*_ALN)
|
||
"Q" MDMX vector/scalar/immediate source (OP_*_VSEL and OP_*_FT)
|
||
"X" MDMX destination register (OP_*_FD)
|
||
"Y" MDMX source register (OP_*_FS)
|
||
"Z" MDMX source register (OP_*_FT)
|
||
|
||
DSP ASE usage:
|
||
"2" 2 bit unsigned immediate for byte align (OP_*_BP)
|
||
"3" 3 bit unsigned immediate (OP_*_SA3)
|
||
"4" 4 bit unsigned immediate (OP_*_SA4)
|
||
"5" 8 bit unsigned immediate (OP_*_IMM8)
|
||
"6" 5 bit unsigned immediate (OP_*_RS)
|
||
"7" 2 bit dsp accumulator register (OP_*_DSPACC)
|
||
"8" 6 bit unsigned immediate (OP_*_WRDSP)
|
||
"9" 2 bit dsp accumulator register (OP_*_DSPACC_S)
|
||
"0" 6 bit signed immediate (OP_*_DSPSFT)
|
||
":" 7 bit signed immediate (OP_*_DSPSFT_7)
|
||
"'" 6 bit unsigned immediate (OP_*_RDDSP)
|
||
"@" 10 bit signed immediate (OP_*_IMM10)
|
||
|
||
MT ASE usage:
|
||
"!" 1 bit usermode flag (OP_*_MT_U)
|
||
"$" 1 bit load high flag (OP_*_MT_H)
|
||
"*" 2 bit dsp/smartmips accumulator register (OP_*_MTACC_T)
|
||
"&" 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
|
||
|
||
UDI immediates:
|
||
"+1" UDI immediate bits 6-10
|
||
"+2" UDI immediate bits 6-15
|
||
"+3" UDI immediate bits 6-20
|
||
"+4" UDI immediate bits 6-25
|
||
|
||
Octeon:
|
||
"+x" Bit index field of bbit. Enforces: 0 <= index < 32.
|
||
"+X" Bit index field of bbit aliasing bbit32. Matches if 32 <= index < 64,
|
||
otherwise skips to next candidate.
|
||
"+p" Position field of cins/cins32/exts/exts32. Enforces 0 <= pos < 32.
|
||
"+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".
|
||
|
||
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"
|
||
"ABCDEFGHIPQSTX"
|
||
"pstx"
|
||
*/
|
||
|
||
/* 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
|
||
/* 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
|
||
/* Modifies coprocessor condition code. */
|
||
#define INSN_WRITE_COND_CODE 0x00000800
|
||
/* Reads coprocessor condition code. */
|
||
#define INSN_READ_COND_CODE 0x00001000
|
||
/* TLB operation. */
|
||
#define INSN_TLB 0x00002000
|
||
/* Reads coprocessor register other than floating point register. */
|
||
#define INSN_COP 0x00004000
|
||
/* Instruction loads value from memory, requiring delay. */
|
||
#define INSN_LOAD_MEMORY_DELAY 0x00008000
|
||
/* Instruction loads value from coprocessor, requiring delay. */
|
||
#define INSN_LOAD_COPROC_DELAY 0x00010000
|
||
/* Instruction has unconditional branch delay slot. */
|
||
#define INSN_UNCOND_BRANCH_DELAY 0x00020000
|
||
/* Instruction has conditional branch delay slot. */
|
||
#define INSN_COND_BRANCH_DELAY 0x00040000
|
||
/* Conditional branch likely: if branch not taken, insn nullified. */
|
||
#define INSN_COND_BRANCH_LIKELY 0x00080000
|
||
/* Moves to coprocessor register, requiring delay. */
|
||
#define INSN_COPROC_MOVE_DELAY 0x00100000
|
||
/* Loads coprocessor register from memory, requiring delay. */
|
||
#define INSN_COPROC_MEMORY_DELAY 0x00200000
|
||
/* Reads the HI register. */
|
||
#define INSN_READ_HI 0x00400000
|
||
/* Reads the LO register. */
|
||
#define INSN_READ_LO 0x00800000
|
||
/* Modifies the HI register. */
|
||
#define INSN_WRITE_HI 0x01000000
|
||
/* Modifies the LO register. */
|
||
#define INSN_WRITE_LO 0x02000000
|
||
/* Takes a trap (easier to keep out of delay slot). */
|
||
#define INSN_TRAP 0x04000000
|
||
/* Instruction stores value into memory. */
|
||
#define INSN_STORE_MEMORY 0x08000000
|
||
/* Instruction uses single precision floating point. */
|
||
#define FP_S 0x10000000
|
||
/* Instruction uses double precision floating point. */
|
||
#define FP_D 0x20000000
|
||
/* Instruction is part of the tx39's integer multiply family. */
|
||
#define INSN_MULT 0x40000000
|
||
/* Instruction synchronize shared memory. */
|
||
#define INSN_SYNC 0x80000000
|
||
/* Instruction is actually a macro. It should be ignored by the
|
||
disassembler, and requires special treatment by the assembler. */
|
||
#define INSN_MACRO 0xffffffff
|
||
|
||
/* These are the bits which may be set in the pinfo2 field of an
|
||
instruction. */
|
||
|
||
/* Instruction is a simple alias (I.E. "move" for daddu/addu/or) */
|
||
#define INSN2_ALIAS 0x00000001
|
||
/* Instruction reads MDMX accumulator. */
|
||
#define INSN2_READ_MDMX_ACC 0x00000002
|
||
/* Instruction writes MDMX accumulator. */
|
||
#define INSN2_WRITE_MDMX_ACC 0x00000004
|
||
/* Macro uses single-precision floating-point instructions. This should
|
||
only be set for macros. For instructions, FP_S in pinfo carries the
|
||
same information. */
|
||
#define INSN2_M_FP_S 0x00000008
|
||
/* Macro uses double-precision floating-point instructions. This should
|
||
only be set for macros. For instructions, FP_D in pinfo carries the
|
||
same information. */
|
||
#define INSN2_M_FP_D 0x00000010
|
||
|
||
/* Masks used to mark instructions to indicate which MIPS ISA level
|
||
they were introduced in. INSN_ISA_MASK masks an enumeration that
|
||
specifies the base ISA level(s). The remainder of a 32-bit
|
||
word constructed using these macros is a bitmask of the remaining
|
||
INSN_* values below. */
|
||
|
||
#define INSN_ISA_MASK 0x0000000ful
|
||
|
||
/* We cannot start at zero due to ISA_UNKNOWN below. */
|
||
#define INSN_ISA1 1
|
||
#define INSN_ISA2 2
|
||
#define INSN_ISA3 3
|
||
#define INSN_ISA4 4
|
||
#define INSN_ISA5 5
|
||
#define INSN_ISA32 6
|
||
#define INSN_ISA32R2 7
|
||
#define INSN_ISA64 8
|
||
#define INSN_ISA64R2 9
|
||
/* Below this point the INSN_* values correspond to combinations of ISAs.
|
||
They are only for use in the opcodes table to indicate membership of
|
||
a combination of ISAs that cannot be expressed using the usual inclusion
|
||
ordering on the above INSN_* values. */
|
||
#define INSN_ISA3_32 10
|
||
#define INSN_ISA3_32R2 11
|
||
#define INSN_ISA4_32 12
|
||
#define INSN_ISA4_32R2 13
|
||
#define INSN_ISA5_32R2 14
|
||
|
||
/* Given INSN_ISA* values X and Y, where X ranges over INSN_ISA1 through
|
||
INSN_ISA5_32R2 and Y ranges over INSN_ISA1 through INSN_ISA64R2,
|
||
this table describes whether at least one of the ISAs described by X
|
||
is/are implemented by ISA Y. (Think of Y as the ISA level supported by
|
||
a particular core and X as the ISA level(s) at which a certain instruction
|
||
is defined.) The ISA(s) described by X is/are implemented by Y iff
|
||
(mips_isa_table[(Y & INSN_ISA_MASK) - 1] >> ((X & INSN_ISA_MASK) - 1)) & 1
|
||
is non-zero. */
|
||
static const unsigned int mips_isa_table[] =
|
||
{ 0x0001, 0x0003, 0x0607, 0x1e0f, 0x3e1f, 0x0a23, 0x3e63, 0x3ebf, 0x3fff };
|
||
|
||
/* Masks used for Chip specific instructions. */
|
||
#define INSN_CHIP_MASK 0xc3ff0820
|
||
|
||
/* Cavium Networks Octeon instructions. */
|
||
#define INSN_OCTEON 0x00000800
|
||
|
||
/* 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 R4650 instruction. */
|
||
#define INSN_4650 0x00010000
|
||
/* LSI R4010 instruction. */
|
||
#define INSN_4010 0x00020000
|
||
/* NEC VR4100 instruction. */
|
||
#define INSN_4100 0x00040000
|
||
/* Toshiba R3900 instruction. */
|
||
#define INSN_3900 0x00080000
|
||
/* MIPS R10000 instruction. */
|
||
#define INSN_10000 0x00100000
|
||
/* Broadcom SB-1 instruction. */
|
||
#define INSN_SB1 0x00200000
|
||
/* NEC VR4111/VR4181 instruction. */
|
||
#define INSN_4111 0x00400000
|
||
/* NEC VR4120 instruction. */
|
||
#define INSN_4120 0x00800000
|
||
/* NEC VR5400 instruction. */
|
||
#define INSN_5400 0x01000000
|
||
/* 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. */
|
||
#define INSN_LOONGSON_2F 0x80000000
|
||
/* RMI Xlr instruction */
|
||
#define INSN_XLR 0x00000020
|
||
|
||
/* MIPS ISA defines, use instead of hardcoding ISA level. */
|
||
|
||
#define ISA_UNKNOWN 0 /* Gas internal use. */
|
||
#define ISA_MIPS1 INSN_ISA1
|
||
#define ISA_MIPS2 INSN_ISA2
|
||
#define ISA_MIPS3 INSN_ISA3
|
||
#define ISA_MIPS4 INSN_ISA4
|
||
#define ISA_MIPS5 INSN_ISA5
|
||
|
||
#define ISA_MIPS32 INSN_ISA32
|
||
#define ISA_MIPS64 INSN_ISA64
|
||
|
||
#define ISA_MIPS32R2 INSN_ISA32R2
|
||
#define ISA_MIPS64R2 INSN_ISA64R2
|
||
|
||
|
||
/* CPU defines, use instead of hardcoding processor number. Keep this
|
||
in sync with bfd/archures.c in order for machine selection to work. */
|
||
#define CPU_UNKNOWN 0 /* Gas internal use. */
|
||
#define CPU_R3000 3000
|
||
#define CPU_R3900 3900
|
||
#define CPU_R4000 4000
|
||
#define CPU_R4010 4010
|
||
#define CPU_VR4100 4100
|
||
#define CPU_R4111 4111
|
||
#define CPU_VR4120 4120
|
||
#define CPU_R4300 4300
|
||
#define CPU_R4400 4400
|
||
#define CPU_R4600 4600
|
||
#define CPU_R4650 4650
|
||
#define CPU_R5000 5000
|
||
#define CPU_VR5400 5400
|
||
#define CPU_VR5500 5500
|
||
#define CPU_R6000 6000
|
||
#define CPU_RM7000 7000
|
||
#define CPU_R8000 8000
|
||
#define CPU_RM9000 9000
|
||
#define CPU_R10000 10000
|
||
#define CPU_R12000 12000
|
||
#define CPU_R14000 14000
|
||
#define CPU_R16000 16000
|
||
#define CPU_MIPS16 16
|
||
#define CPU_MIPS32 32
|
||
#define CPU_MIPS32R2 33
|
||
#define CPU_MIPS5 5
|
||
#define CPU_MIPS64 64
|
||
#define CPU_MIPS64R2 65
|
||
#define CPU_SB1 12310201 /* octal 'SB', 01. */
|
||
#define CPU_LOONGSON_2E 3001
|
||
#define CPU_LOONGSON_2F 3002
|
||
#define CPU_OCTEON 6501
|
||
#define CPU_XLR 887682 /* decimal 'XLR' */
|
||
|
||
/* 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_OCTEON \
|
||
&& ((insn)->membership & INSN_OCTEON) != 0) \
|
||
|| (cpu == CPU_XLR && ((insn)->membership & INSN_XLR) != 0) \
|
||
|| 0) /* Please keep this term for easier source merging. */
|
||
|
||
/* This is a list of macro expanded instructions.
|
||
|
||
_I appended means immediate
|
||
_A appended means address
|
||
_AB appended means address with base register
|
||
_D appended means 64 bit floating point constant
|
||
_S appended means 32 bit floating point constant. */
|
||
|
||
enum
|
||
{
|
||
M_ABS,
|
||
M_ADD_I,
|
||
M_ADDU_I,
|
||
M_AND_I,
|
||
M_BALIGN,
|
||
M_BEQ,
|
||
M_BEQ_I,
|
||
M_BEQL_I,
|
||
M_BGE,
|
||
M_BGEL,
|
||
M_BGE_I,
|
||
M_BGEL_I,
|
||
M_BGEU,
|
||
M_BGEUL,
|
||
M_BGEU_I,
|
||
M_BGEUL_I,
|
||
M_BGT,
|
||
M_BGTL,
|
||
M_BGT_I,
|
||
M_BGTL_I,
|
||
M_BGTU,
|
||
M_BGTUL,
|
||
M_BGTU_I,
|
||
M_BGTUL_I,
|
||
M_BLE,
|
||
M_BLEL,
|
||
M_BLE_I,
|
||
M_BLEL_I,
|
||
M_BLEU,
|
||
M_BLEUL,
|
||
M_BLEU_I,
|
||
M_BLEUL_I,
|
||
M_BLT,
|
||
M_BLTL,
|
||
M_BLT_I,
|
||
M_BLTL_I,
|
||
M_BLTU,
|
||
M_BLTUL,
|
||
M_BLTU_I,
|
||
M_BLTUL_I,
|
||
M_BNE,
|
||
M_BNE_I,
|
||
M_BNEL_I,
|
||
M_CACHE_AB,
|
||
M_DABS,
|
||
M_DADD_I,
|
||
M_DADDU_I,
|
||
M_DDIV_3,
|
||
M_DDIV_3I,
|
||
M_DDIVU_3,
|
||
M_DDIVU_3I,
|
||
M_DEXT,
|
||
M_DINS,
|
||
M_DIV_3,
|
||
M_DIV_3I,
|
||
M_DIVU_3,
|
||
M_DIVU_3I,
|
||
M_DLA_AB,
|
||
M_DLCA_AB,
|
||
M_DLI,
|
||
M_DMUL,
|
||
M_DMUL_I,
|
||
M_DMULO,
|
||
M_DMULO_I,
|
||
M_DMULOU,
|
||
M_DMULOU_I,
|
||
M_DREM_3,
|
||
M_DREM_3I,
|
||
M_DREMU_3,
|
||
M_DREMU_3I,
|
||
M_DSUB_I,
|
||
M_DSUBU_I,
|
||
M_DSUBU_I_2,
|
||
M_J_A,
|
||
M_JAL_1,
|
||
M_JAL_2,
|
||
M_JAL_A,
|
||
M_L_DOB,
|
||
M_L_DAB,
|
||
M_LA_AB,
|
||
M_LB_A,
|
||
M_LB_AB,
|
||
M_LBU_A,
|
||
M_LBU_AB,
|
||
M_LCA_AB,
|
||
M_LD_A,
|
||
M_LD_OB,
|
||
M_LD_AB,
|
||
M_LDC1_AB,
|
||
M_LDC2_AB,
|
||
M_LDC3_AB,
|
||
M_LDL_AB,
|
||
M_LDR_AB,
|
||
M_LH_A,
|
||
M_LH_AB,
|
||
M_LHU_A,
|
||
M_LHU_AB,
|
||
M_LI,
|
||
M_LI_D,
|
||
M_LI_DD,
|
||
M_LI_S,
|
||
M_LI_SS,
|
||
M_LL_AB,
|
||
M_LLD_AB,
|
||
M_LS_A,
|
||
M_LW_A,
|
||
M_LW_AB,
|
||
M_LWC0_A,
|
||
M_LWC0_AB,
|
||
M_LWC1_A,
|
||
M_LWC1_AB,
|
||
M_LWC2_A,
|
||
M_LWC2_AB,
|
||
M_LWC3_A,
|
||
M_LWC3_AB,
|
||
M_LWL_A,
|
||
M_LWL_AB,
|
||
M_LWR_A,
|
||
M_LWR_AB,
|
||
M_LWU_AB,
|
||
M_MSGSND,
|
||
M_MSGLD,
|
||
M_MSGLD_T,
|
||
M_MSGWAIT,
|
||
M_MSGWAIT_T,
|
||
M_MOVE,
|
||
M_MUL,
|
||
M_MUL_I,
|
||
M_MULO,
|
||
M_MULO_I,
|
||
M_MULOU,
|
||
M_MULOU_I,
|
||
M_NOR_I,
|
||
M_OR_I,
|
||
M_REM_3,
|
||
M_REM_3I,
|
||
M_REMU_3,
|
||
M_REMU_3I,
|
||
M_DROL,
|
||
M_ROL,
|
||
M_DROL_I,
|
||
M_ROL_I,
|
||
M_DROR,
|
||
M_ROR,
|
||
M_DROR_I,
|
||
M_ROR_I,
|
||
M_S_DA,
|
||
M_S_DOB,
|
||
M_S_DAB,
|
||
M_S_S,
|
||
M_SC_AB,
|
||
M_SCD_AB,
|
||
M_SD_A,
|
||
M_SD_OB,
|
||
M_SD_AB,
|
||
M_SDC1_AB,
|
||
M_SDC2_AB,
|
||
M_SDC3_AB,
|
||
M_SDL_AB,
|
||
M_SDR_AB,
|
||
M_SEQ,
|
||
M_SEQ_I,
|
||
M_SGE,
|
||
M_SGE_I,
|
||
M_SGEU,
|
||
M_SGEU_I,
|
||
M_SGT,
|
||
M_SGT_I,
|
||
M_SGTU,
|
||
M_SGTU_I,
|
||
M_SLE,
|
||
M_SLE_I,
|
||
M_SLEU,
|
||
M_SLEU_I,
|
||
M_SLT_I,
|
||
M_SLTU_I,
|
||
M_SNE,
|
||
M_SNE_I,
|
||
M_SB_A,
|
||
M_SB_AB,
|
||
M_SH_A,
|
||
M_SH_AB,
|
||
M_SW_A,
|
||
M_SW_AB,
|
||
M_SWC0_A,
|
||
M_SWC0_AB,
|
||
M_SWC1_A,
|
||
M_SWC1_AB,
|
||
M_SWC2_A,
|
||
M_SWC2_AB,
|
||
M_SWC3_A,
|
||
M_SWC3_AB,
|
||
M_SWL_A,
|
||
M_SWL_AB,
|
||
M_SWR_A,
|
||
M_SWR_AB,
|
||
M_SUB_I,
|
||
M_SUBU_I,
|
||
M_SUBU_I_2,
|
||
M_TEQ_I,
|
||
M_TGE_I,
|
||
M_TGEU_I,
|
||
M_TLT_I,
|
||
M_TLTU_I,
|
||
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_XOR_I,
|
||
M_COP0,
|
||
M_COP1,
|
||
M_COP2,
|
||
M_COP3,
|
||
M_NUM_MACROS
|
||
};
|
||
|
||
|
||
/* The order of overloaded instructions matters. Label arguments and
|
||
register arguments look the same. Instructions that can have either
|
||
for arguments must apear in the correct order in this table for the
|
||
assembler to pick the right one. In other words, entries with
|
||
immediate operands must apear after the same instruction with
|
||
registers.
|
||
|
||
Many instructions are short hand for other instructions (i.e., The
|
||
jal <register> instruction is short for jalr <register>). */
|
||
|
||
extern const struct mips_opcode mips_builtin_opcodes[];
|
||
extern const int bfd_mips_num_builtin_opcodes;
|
||
extern struct mips_opcode *mips_opcodes;
|
||
extern int bfd_mips_num_opcodes;
|
||
#define NUMOPCODES bfd_mips_num_opcodes
|
||
|
||
|
||
/* The rest of this file adds definitions for the mips16 TinyRISC
|
||
processor. */
|
||
|
||
/* These are the bitmasks and shift counts used for the different
|
||
fields in the instruction formats. Other than OP, no masks are
|
||
provided for the fixed portions of an instruction, since they are
|
||
not needed.
|
||
|
||
The I format uses IMM11.
|
||
|
||
The RI format uses RX and IMM8.
|
||
|
||
The RR format uses RX, and RY.
|
||
|
||
The RRI format uses RX, RY, and IMM5.
|
||
|
||
The RRR format uses RX, RY, and RZ.
|
||
|
||
The RRI_A format uses RX, RY, and IMM4.
|
||
|
||
The SHIFT format uses RX, RY, and SHAMT.
|
||
|
||
The I8 format uses IMM8.
|
||
|
||
The I8_MOVR32 format uses RY and REGR32.
|
||
|
||
The IR_MOV32R format uses REG32R and MOV32Z.
|
||
|
||
The I64 format uses IMM8.
|
||
|
||
The RI64 format uses RY and IMM5.
|
||
*/
|
||
|
||
#define MIPS16OP_MASK_OP 0x1f
|
||
#define MIPS16OP_SH_OP 11
|
||
#define MIPS16OP_MASK_IMM11 0x7ff
|
||
#define MIPS16OP_SH_IMM11 0
|
||
#define MIPS16OP_MASK_RX 0x7
|
||
#define MIPS16OP_SH_RX 8
|
||
#define MIPS16OP_MASK_IMM8 0xff
|
||
#define MIPS16OP_SH_IMM8 0
|
||
#define MIPS16OP_MASK_RY 0x7
|
||
#define MIPS16OP_SH_RY 5
|
||
#define MIPS16OP_MASK_IMM5 0x1f
|
||
#define MIPS16OP_SH_IMM5 0
|
||
#define MIPS16OP_MASK_RZ 0x7
|
||
#define MIPS16OP_SH_RZ 2
|
||
#define MIPS16OP_MASK_IMM4 0xf
|
||
#define MIPS16OP_SH_IMM4 0
|
||
#define MIPS16OP_MASK_REGR32 0x1f
|
||
#define MIPS16OP_SH_REGR32 0
|
||
#define MIPS16OP_MASK_REG32R 0x1f
|
||
#define MIPS16OP_SH_REG32R 3
|
||
#define MIPS16OP_EXTRACT_REG32R(i) ((((i) >> 5) & 7) | ((i) & 0x18))
|
||
#define MIPS16OP_MASK_MOVE32Z 0x7
|
||
#define MIPS16OP_SH_MOVE32Z 0
|
||
#define MIPS16OP_MASK_IMM6 0x3f
|
||
#define MIPS16OP_SH_IMM6 5
|
||
|
||
/* These are the characters which may appears in the args field of a MIPS16
|
||
instruction. They appear in the order in which the fields appear when the
|
||
instruction is used. Commas and parentheses in the args string are ignored
|
||
when assembling, and written into the output when disassembling.
|
||
|
||
"y" 3 bit register (MIPS16OP_*_RY)
|
||
"x" 3 bit register (MIPS16OP_*_RX)
|
||
"z" 3 bit register (MIPS16OP_*_RZ)
|
||
"Z" 3 bit register (MIPS16OP_*_MOVE32Z)
|
||
"v" 3 bit same register as source and destination (MIPS16OP_*_RX)
|
||
"w" 3 bit same register as source and destination (MIPS16OP_*_RY)
|
||
"0" zero register ($0)
|
||
"S" stack pointer ($sp or $29)
|
||
"P" program counter
|
||
"R" return address register ($ra or $31)
|
||
"X" 5 bit MIPS register (MIPS16OP_*_REGR32)
|
||
"Y" 5 bit MIPS register (MIPS16OP_*_REG32R)
|
||
"6" 6 bit unsigned break code (MIPS16OP_*_IMM6)
|
||
"a" 26 bit jump address
|
||
"e" 11 bit extension value
|
||
"l" register list for entry instruction
|
||
"L" register list for exit instruction
|
||
|
||
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)
|
||
">" 3 bit unsigned shift count * 0 (MIPS16OP_*_RX) (full 5 bit unsigned)
|
||
"[" 3 bit unsigned shift count * 0 (MIPS16OP_*_RZ) (full 6 bit unsigned)
|
||
"]" 3 bit unsigned shift count * 0 (MIPS16OP_*_RX) (full 6 bit unsigned)
|
||
"4" 4 bit signed immediate * 0 (MIPS16OP_*_IMM4) (full 15 bit signed)
|
||
"5" 5 bit unsigned immediate * 0 (MIPS16OP_*_IMM5)
|
||
"H" 5 bit unsigned immediate * 2 (MIPS16OP_*_IMM5)
|
||
"W" 5 bit unsigned immediate * 4 (MIPS16OP_*_IMM5)
|
||
"D" 5 bit unsigned immediate * 8 (MIPS16OP_*_IMM5)
|
||
"j" 5 bit signed immediate * 0 (MIPS16OP_*_IMM5)
|
||
"8" 8 bit unsigned immediate * 0 (MIPS16OP_*_IMM8)
|
||
"V" 8 bit unsigned immediate * 4 (MIPS16OP_*_IMM8)
|
||
"C" 8 bit unsigned immediate * 8 (MIPS16OP_*_IMM8)
|
||
"U" 8 bit unsigned immediate * 0 (MIPS16OP_*_IMM8) (full 16 bit unsigned)
|
||
"k" 8 bit signed immediate * 0 (MIPS16OP_*_IMM8)
|
||
"K" 8 bit signed immediate * 8 (MIPS16OP_*_IMM8)
|
||
"p" 8 bit conditional branch address (MIPS16OP_*_IMM8)
|
||
"q" 11 bit branch address (MIPS16OP_*_IMM11)
|
||
"A" 8 bit PC relative address * 4 (MIPS16OP_*_IMM8)
|
||
"B" 5 bit PC relative address * 8 (MIPS16OP_*_IMM5)
|
||
"E" 5 bit PC relative address * 4 (MIPS16OP_*_IMM5)
|
||
"m" 7 bit register list for save instruction (18 bit extended)
|
||
"M" 7 bit register list for restore instruction (18 bit extended)
|
||
*/
|
||
|
||
/* Save/restore encoding for the args field when all 4 registers are
|
||
either saved as arguments or saved/restored as statics. */
|
||
#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:
|
||
INSN_UNCOND_BRANCH_DELAY
|
||
INSN_COND_BRANCH_DELAY
|
||
INSN_COND_BRANCH_LIKELY (never used)
|
||
INSN_READ_HI
|
||
INSN_READ_LO
|
||
INSN_WRITE_HI
|
||
INSN_WRITE_LO
|
||
INSN_TRAP
|
||
INSN_ISA3
|
||
*/
|
||
|
||
extern const struct mips_opcode mips16_opcodes[];
|
||
extern const int bfd_mips16_num_opcodes;
|
||
|
||
/* A NOP insn impemented as "or at,at,zero".
|
||
Used to implement -mfix-loongson2f. */
|
||
#define LOONGSON2F_NOP_INSN 0x00200825
|
||
|
||
#endif /* _MIPS_H_ */
|