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// Copyright (c) 2006-2007 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: Ali Saidi
// Gabe Black
// Steve Reinhardt
def operand_types {{
'sb' : ('signed int', 8),
'ub' : ('unsigned int', 8),
'shw' : ('signed int', 16),
'uhw' : ('unsigned int', 16),
'sw' : ('signed int', 32),
'uw' : ('unsigned int', 32),
'sdw' : ('signed int', 64),
'udw' : ('unsigned int', 64),
'tudw' : ('twin int', 64),
'sf' : ('float', 32),
'df' : ('float', 64),
'qf' : ('float', 128)
}};
output header {{
// A function to "decompress" double and quad floating point
// register numbers stuffed into 5 bit fields. These have their
// MSB put in the LSB position but are otherwise normal.
static inline unsigned int dfpr(unsigned int regNum)
{
return (regNum & (~1)) | ((regNum & 1) << 5);
}
}};
def operands {{
# Int regs default to unsigned, but code should not count on this.
# For clarity, descriptions that depend on unsigned behavior should
# explicitly specify '.uq'.
'Rd': ('IntReg', 'udw', 'RD', 'IsInteger', 1),
# The Rd from the previous window
'Rd_prev': ('IntReg', 'udw', 'RD + NumIntArchRegs + NumMicroIntRegs', 'IsInteger', 2),
# The Rd from the next window
'Rd_next': ('IntReg', 'udw', 'RD + 2 * NumIntArchRegs + NumMicroIntRegs', 'IsInteger', 3),
# For microcoded twin load instructions, RdTwin appears in the "code"
# for the instruction is replaced by RdLow or RdHigh by the format
# before it's processed by the iop.
# The low (even) register of a two register pair
'RdLow': ('IntReg', 'udw', 'RD & (~1)', 'IsInteger', 4),
# The high (odd) register of a two register pair
'RdHigh': ('IntReg', 'udw', 'RD | 1', 'IsInteger', 5),
'Rs1': ('IntReg', 'udw', 'RS1', 'IsInteger', 6),
'Rs2': ('IntReg', 'udw', 'RS2', 'IsInteger', 7),
# A microcode register. Right now, this is the only one.
'uReg0': ('IntReg', 'udw', 'NumIntArchRegs', 'IsInteger', 8),
# Because double and quad precision register numbers are decoded
# differently, they get different operands. The single precision versions
# have an s post pended to their name.
'Frds': ('FloatReg', 'sf', 'RD', 'IsFloating', 10),
'Frd': ('FloatReg', 'df', 'dfpr(RD)', 'IsFloating', 10),
# Each Frd_N refers to the Nth double precision register from Frd.
# Note that this adds twice N to the register number.
'Frd_0': ('FloatReg', 'df', 'dfpr(RD)', 'IsFloating', 10),
'Frd_1': ('FloatReg', 'df', 'dfpr(RD) + 2', 'IsFloating', 10),
'Frd_2': ('FloatReg', 'df', 'dfpr(RD) + 4', 'IsFloating', 10),
'Frd_3': ('FloatReg', 'df', 'dfpr(RD) + 6', 'IsFloating', 10),
'Frd_4': ('FloatReg', 'df', 'dfpr(RD) + 8', 'IsFloating', 10),
'Frd_5': ('FloatReg', 'df', 'dfpr(RD) + 10', 'IsFloating', 10),
'Frd_6': ('FloatReg', 'df', 'dfpr(RD) + 12', 'IsFloating', 10),
'Frd_7': ('FloatReg', 'df', 'dfpr(RD) + 14', 'IsFloating', 10),
'Frs1s': ('FloatReg', 'sf', 'RS1', 'IsFloating', 11),
'Frs1': ('FloatReg', 'df', 'dfpr(RS1)', 'IsFloating', 11),
'Frs2s': ('FloatReg', 'sf', 'RS2', 'IsFloating', 12),
'Frs2': ('FloatReg', 'df', 'dfpr(RS2)', 'IsFloating', 12),
'NPC': ('NPC', 'udw', None, ( None, None, 'IsControl' ), 31),
'NNPC': ('NNPC', 'udw', None, (None, None, 'IsControl' ), 32),
# Registers which are used explicitly in instructions
'R0': ('IntReg', 'udw', '0', None, 6),
'R1': ('IntReg', 'udw', '1', None, 7),
'R15': ('IntReg', 'udw', '15', 'IsInteger', 8),
'R16': ('IntReg', 'udw', '16', None, 9),
# Control registers
# 'Y': ('ControlReg', 'udw', 'MISCREG_Y', None, 40),
# 'Ccr': ('ControlReg', 'udw', 'MISCREG_CCR', None, 41),
'Y': ('IntReg', 'udw', 'NumIntArchRegs + 1', None, 40),
'Ccr': ('IntReg', 'udw', 'NumIntArchRegs + 2', None, 41),
'Asi': ('ControlReg', 'udw', 'MISCREG_ASI', None, 42),
'Fprs': ('ControlReg', 'udw', 'MISCREG_FPRS', None, 43),
'Pcr': ('ControlReg', 'udw', 'MISCREG_PCR', None, 44),
'Pic': ('ControlReg', 'udw', 'MISCREG_PIC', None, 45),
'Gsr': ('ControlReg', 'udw', 'MISCREG_GSR', None, 46),
'Softint': ('ControlReg', 'udw', 'MISCREG_SOFTINT', None, 47),
'SoftintSet': ('ControlReg', 'udw', 'MISCREG_SOFTINT_SET', None, 48),
'SoftintClr': ('ControlReg', 'udw', 'MISCREG_SOFTINT_CLR', None, 49),
'TickCmpr': ('ControlReg', 'udw', 'MISCREG_TICK_CMPR', None, 50),
'Stick': ('ControlReg', 'udw', 'MISCREG_STICK', None, 51),
'StickCmpr': ('ControlReg', 'udw', 'MISCREG_STICK_CMPR', None, 52),
'Tpc': ('ControlReg', 'udw', 'MISCREG_TPC', None, 53),
'Tnpc': ('ControlReg', 'udw', 'MISCREG_TNPC', None, 54),
'Tstate': ('ControlReg', 'udw', 'MISCREG_TSTATE', None, 55),
'Tt': ('ControlReg', 'udw', 'MISCREG_TT', None, 56),
'Tick': ('ControlReg', 'udw', 'MISCREG_TICK', None, 57),
'Tba': ('ControlReg', 'udw', 'MISCREG_TBA', None, 58),
'Pstate': ('ControlReg', 'udw', 'MISCREG_PSTATE', None, 59),
'Tl': ('ControlReg', 'udw', 'MISCREG_TL', None, 60),
'Pil': ('ControlReg', 'udw', 'MISCREG_PIL', None, 61),
'Cwp': ('ControlReg', 'udw', 'MISCREG_CWP', (None, None, ['IsSerializeAfter','IsSerializing','IsNonSpeculative']), 62),
# 'Cansave': ('ControlReg', 'udw', 'MISCREG_CANSAVE', None, 63),
# 'Canrestore': ('ControlReg', 'udw', 'MISCREG_CANRESTORE', None, 64),
# 'Cleanwin': ('ControlReg', 'udw', 'MISCREG_CLEANWIN', None, 65),
# 'Otherwin': ('ControlReg', 'udw', 'MISCREG_OTHERWIN', None, 66),
# 'Wstate': ('ControlReg', 'udw', 'MISCREG_WSTATE', None, 67),
'Cansave': ('IntReg', 'udw', 'NumIntArchRegs + 3', None, 63),
'Canrestore': ('IntReg', 'udw', 'NumIntArchRegs + 4', None, 64),
'Cleanwin': ('IntReg', 'udw', 'NumIntArchRegs + 5', None, 65),
'Otherwin': ('IntReg', 'udw', 'NumIntArchRegs + 6', None, 66),
'Wstate': ('IntReg', 'udw', 'NumIntArchRegs + 7', None, 67),
'Gl': ('ControlReg', 'udw', 'MISCREG_GL', None, 68),
'Hpstate': ('ControlReg', 'udw', 'MISCREG_HPSTATE', None, 69),
'Htstate': ('ControlReg', 'udw', 'MISCREG_HTSTATE', None, 70),
'Hintp': ('ControlReg', 'udw', 'MISCREG_HINTP', None, 71),
'Htba': ('ControlReg', 'udw', 'MISCREG_HTBA', None, 72),
'HstickCmpr': ('ControlReg', 'udw', 'MISCREG_HSTICK_CMPR', None, 73),
'Hver': ('ControlReg', 'udw', 'MISCREG_HVER', None, 74),
'StrandStsReg': ('ControlReg', 'udw', 'MISCREG_STRAND_STS_REG', None, 75),
'Fsr': ('ControlReg', 'udw', 'MISCREG_FSR', None, 80),
# Mem gets a large number so it's always last
'Mem': ('Mem', 'udw', None, ('IsMemRef', 'IsLoad', 'IsStore'), 100)
}};
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