xref: /gem5/src/arch/power/isa/operands.isa

// -*- mode:c++ -*-

// Copyright (c) 2009 The University of Edinburgh
// All rights reserved.
//
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// modification, are permitted provided that the following conditions are
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// redistributions in binary form must reproduce the above copyright
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// neither the name of the copyright holders nor the names of its
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// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// Authors: Timothy M. Jones

def operand_types {{
    'sb' : ('signed int', 8),
    'ub' : ('unsigned int', 8),
    'sh' : ('signed int', 16),
    'uh' : ('unsigned int', 16),
    'sw' : ('signed int', 32),
    'uw' : ('unsigned int', 32),
    'sq' : ('signed int', 64),
    'uq' : ('unsigned int', 64),
    'sf' : ('float', 32),
    'df' : ('float', 64)
}};

def operands {{
    # General Purpose Integer Reg Operands
    'Ra': ('IntReg', 'uw', 'RA', 'IsInteger', 1),
    'Rb': ('IntReg', 'uw', 'RB', 'IsInteger', 2),
    'Rs': ('IntReg', 'uw', 'RS', 'IsInteger', 3),
    'Rt': ('IntReg', 'uw', 'RT', 'IsInteger', 4),

    # General Purpose Floating Point Reg Operands
    'Fa': ('FloatReg', 'df', 'FRA', 'IsFloating', 1),
    'Fb': ('FloatReg', 'df', 'FRB', 'IsFloating', 2),
    'Fc': ('FloatReg', 'df', 'FRC', 'IsFloating', 3),
    'Fs': ('FloatReg', 'df', 'FRS', 'IsFloating', 4),
    'Ft': ('FloatReg', 'df', 'FRT', 'IsFloating', 5),

    # Memory Operand
    'Mem': ('Mem', 'uw', None, ('IsMemRef', 'IsLoad', 'IsStore'), 8),

    # Program counter and next
    'PC': ('PCState', 'uw', 'pc', (None, None, 'IsControl'), 9),
    'NPC': ('PCState', 'uw', 'npc', (None, None, 'IsControl'), 9),

    # Control registers
    'CR': ('IntReg', 'uw', 'INTREG_CR', 'IsInteger', 9),
    'LR': ('IntReg', 'uw', 'INTREG_LR', 'IsInteger', 9),
    'CTR': ('IntReg', 'uw', 'INTREG_CTR', 'IsInteger', 9),
    'XER': ('IntReg', 'uw', 'INTREG_XER', 'IsInteger', 9),

    # Setting as IntReg so things are stored as an integer, not double
    'FPSCR': ('IntReg', 'uw', 'INTREG_FPSCR', 'IsFloating', 9),

    # Registers for linked loads and stores
    'Rsv': ('IntReg', 'uw', 'INTREG_RSV', 'IsInteger', 9),
    'RsvLen': ('IntReg', 'uw', 'INTREG_RSV_LEN', 'IsInteger', 9),
    'RsvAddr': ('IntReg', 'uw', 'INTREG_RSV_ADDR', 'IsInteger', 9),

    # Hack for non-full-system syscall emulation
    'R0':  ('IntReg', 'uw', '0', None, 1),
}};