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// Copyright (c) 2007-2008 The Hewlett-Packard Development Company
// All rights reserved.
//
// The license below extends only to copyright in the software and shall
// not be construed as granting a license to any other intellectual
// property including but not limited to intellectual property relating
// to a hardware implementation of the functionality of the software
// licensed hereunder. You may use the software subject to the license
// terms below provided that you ensure that this notice is replicated
// unmodified and in its entirety in all distributions of the software,
// modified or unmodified, in source code or in binary form.
//
// Copyright (c) 2007 The Regents of The University of Michigan
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met: redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer;
// redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution;
// neither the name of the copyright holders nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Authors: Gabe Black
def operand_types {{
'sb' : 'int8_t',
'ub' : 'uint8_t',
'sw' : 'int16_t',
'uw' : 'uint16_t',
'sdw' : 'int32_t',
'udw' : 'uint32_t',
'sqw' : 'int64_t',
'uqw' : 'uint64_t',
'sf' : 'float',
'df' : 'double',
}};
let {{
def foldInt(idx, foldBit, id):
return ('IntReg', 'uqw', 'INTREG_FOLDED(%s, %s)' % (idx, foldBit),
'IsInteger', id)
def intReg(idx, id):
return ('IntReg', 'uqw', idx, 'IsInteger', id)
def impIntReg(idx, id):
return ('IntReg', 'uqw', 'INTREG_IMPLICIT(%s)' % idx, 'IsInteger', id)
def floatReg(idx, id):
return ('FloatReg', 'df', idx, 'IsFloating', id)
def controlReg(idx, id, ctype = 'uqw'):
return ('ControlReg', ctype, idx,
(None, None, ['IsSerializeAfter',
'IsSerializing',
'IsNonSpeculative']),
id)
def squashCheckReg(idx, id, check, ctype = 'uqw'):
return ('ControlReg', ctype, idx,
(None, None, ['((%s) ? ' % check+ \
'IsSquashAfter : IsSerializeAfter)',
'IsSerializing',
'IsNonSpeculative']),
id)
def squashCReg(idx, id, ctype = 'uqw'):
return squashCheckReg(idx, id, 'true', ctype)
def squashCSReg(idx, id, ctype = 'uqw'):
return squashCheckReg(idx, id, 'dest == SEGMENT_REG_CS', ctype)
def squashCR0Reg(idx, id, ctype = 'uqw'):
return squashCheckReg(idx, id, 'dest == 0', ctype)
}};
def operands {{
'SrcReg1': foldInt('src1', 'foldOBit', 1),
'SSrcReg1': intReg('src1', 1),
'SrcReg2': foldInt('src2', 'foldOBit', 2),
'SSrcReg2': intReg('src2', 1),
'Index': foldInt('index', 'foldABit', 3),
'Base': foldInt('base', 'foldABit', 4),
'DestReg': foldInt('dest', 'foldOBit', 5),
'SDestReg': intReg('dest', 5),
'Data': foldInt('data', 'foldOBit', 6),
'ProdLow': impIntReg(0, 7),
'ProdHi': impIntReg(1, 8),
'Quotient': impIntReg(2, 9),
'Remainder': impIntReg(3, 10),
'Divisor': impIntReg(4, 11),
'DoubleBits': impIntReg(5, 11),
'Rax': intReg('(INTREG_RAX)', 12),
'Rbx': intReg('(INTREG_RBX)', 13),
'Rcx': intReg('(INTREG_RCX)', 14),
'Rdx': intReg('(INTREG_RDX)', 15),
'Rsp': intReg('(INTREG_RSP)', 16),
'Rbp': intReg('(INTREG_RBP)', 17),
'Rsi': intReg('(INTREG_RSI)', 18),
'Rdi': intReg('(INTREG_RDI)', 19),
'FpSrcReg1': floatReg('src1', 20),
'FpSrcReg2': floatReg('src2', 21),
'FpDestReg': floatReg('dest', 22),
'FpData': floatReg('data', 23),
'RIP': ('PCState', 'uqw', 'pc',
(None, None, 'IsControl'), 50),
'NRIP': ('PCState', 'uqw', 'npc',
(None, None, 'IsControl'), 50),
'nuIP': ('PCState', 'uqw', 'nupc',
(None, None, 'IsControl'), 50),
# These registers hold the condition code portion of the flag
# register. The nccFlagBits version holds the rest.
'ccFlagBits': intReg('INTREG_PSEUDO(0)', 60),
'cfofBits': intReg('INTREG_PSEUDO(1)', 61),
'dfBit': intReg('INTREG_PSEUDO(2)', 62),
'ecfBit': intReg('INTREG_PSEUDO(3)', 63),
'ezfBit': intReg('INTREG_PSEUDO(4)', 64),
# These Pred registers are to be used where reading the portions of
# condition code registers is possibly optional, depending on how the
# check evaluates. There are two checks being specified, one tests if
# a register needs to be read, the other tests whether the register
# needs to be written to. It is unlikely that these would need to be
# used in the actual operation of the instruction. It is expected
# that these are used only in the flag code.
# Rationale behind the checks: at times, we need to partially update
# the condition code bits in a register. So we read the register even
# in the case when the all the bits will be written, or none of the
# bits will be written. The read predicate checks if any of the bits
# would be retained, the write predicate checks if any of the bits
# are being written.
'PredccFlagBits': ('IntReg', 'uqw', 'INTREG_PSEUDO(0)', 'IsInteger',
60, None, None, '''(((ext & (PFBit | AFBit | ZFBit | SFBit
)) != (PFBit | AFBit | ZFBit | SFBit )) &&
((ext & (PFBit | AFBit | ZFBit | SFBit )) != 0))''',
'((ext & (PFBit | AFBit | ZFBit | SFBit )) != 0)'),
'PredcfofBits': ('IntReg', 'uqw', 'INTREG_PSEUDO(1)', 'IsInteger',
61, None, None, '''(((ext & CFBit) == 0 ||
(ext & OFBit) == 0) && ((ext & (CFBit | OFBit)) != 0))''',
'((ext & (CFBit | OFBit)) != 0)'),
'PreddfBit': ('IntReg', 'uqw', 'INTREG_PSEUDO(2)', 'IsInteger',
62, None, None, '(false)', '((ext & DFBit) != 0)'),
'PredecfBit': ('IntReg', 'uqw', 'INTREG_PSEUDO(3)', 'IsInteger',
63, None, None, '(false)', '((ext & ECFBit) != 0)'),
'PredezfBit': ('IntReg', 'uqw', 'INTREG_PSEUDO(4)', 'IsInteger',
64, None, None, '(false)', '((ext & EZFBit) != 0)'),
# These register should needs to be more protected so that later
# instructions don't map their indexes with an old value.
'nccFlagBits': controlReg('MISCREG_RFLAGS', 65),
# Registers related to the state of x87 floating point unit.
'TOP': controlReg('MISCREG_X87_TOP', 66, ctype='ub'),
'FSW': controlReg('MISCREG_FSW', 67, ctype='uw'),
'FTW': controlReg('MISCREG_FTW', 68, ctype='uw'),
# The segment base as used by memory instructions.
'SegBase': controlReg('MISCREG_SEG_EFF_BASE(segment)', 70),
# Operands to get and set registers indexed by the operands of the
# original instruction.
'ControlDest': squashCR0Reg('MISCREG_CR(dest)', 100),
'ControlSrc1': controlReg('MISCREG_CR(src1)', 101),
'DebugDest': controlReg('MISCREG_DR(dest)', 102),
'DebugSrc1': controlReg('MISCREG_DR(src1)', 103),
'SegBaseDest': squashCSReg('MISCREG_SEG_BASE(dest)', 104),
'SegBaseSrc1': controlReg('MISCREG_SEG_BASE(src1)', 105),
'SegLimitDest': squashCSReg('MISCREG_SEG_LIMIT(dest)', 106),
'SegLimitSrc1': controlReg('MISCREG_SEG_LIMIT(src1)', 107),
'SegSelDest': controlReg('MISCREG_SEG_SEL(dest)', 108),
'SegSelSrc1': controlReg('MISCREG_SEG_SEL(src1)', 109),
'SegAttrDest': squashCSReg('MISCREG_SEG_ATTR(dest)', 110),
'SegAttrSrc1': controlReg('MISCREG_SEG_ATTR(src1)', 111),
# Operands to access specific control registers directly.
'EferOp': squashCReg('MISCREG_EFER', 200),
'CR4Op': controlReg('MISCREG_CR4', 201),
'DR7Op': controlReg('MISCREG_DR7', 202),
'LDTRBase': controlReg('MISCREG_TSL_BASE', 203),
'LDTRLimit': controlReg('MISCREG_TSL_LIMIT', 204),
'LDTRSel': controlReg('MISCREG_TSL', 205),
'GDTRBase': controlReg('MISCREG_TSG_BASE', 206),
'GDTRLimit': controlReg('MISCREG_TSG_LIMIT', 207),
'CSBase': squashCReg('MISCREG_CS_EFF_BASE', 208),
'CSAttr': squashCReg('MISCREG_CS_ATTR', 209),
'MiscRegDest': controlReg('dest', 210),
'MiscRegSrc1': controlReg('src1', 211),
'TscOp': controlReg('MISCREG_TSC', 212),
'M5Reg': squashCReg('MISCREG_M5_REG', 213),
'Mem': ('Mem', 'uqw', None, \
('IsMemRef', 'IsLoad', 'IsStore'), 300)
}};
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