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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),
'sd' : ('signed int', 64),
'ud' : ('unsigned int', 64),
'sf' : ('float', 32),
'df' : ('float', 64),
'qf' : ('float', 128)
}};
def operands {{
'Rd': ('IntReg', 'uw', 'RD', 'IsInteger', 1),
'Rs': ('IntReg', 'uw', 'RS', 'IsInteger', 2),
'Rt': ('IntReg', 'uw', 'RT', 'IsInteger', 3),
'r31': ('IntReg', 'uw','R31','IsInteger', 4),
'R0': ('IntReg', 'uw','R0', 'IsInteger', 5),
'IntImm': ('IntReg', 'uw', 'INTIMM', 'IsInteger', 3),
'Fd': ('FloatReg', 'sf', 'FD', 'IsFloating', 1),
'Fs': ('FloatReg', 'sf', 'FS', 'IsFloating', 2),
'Ft': ('FloatReg', 'sf', 'FT', 'IsFloating', 3),
'Fr': ('FloatReg', 'sf', 'FR', 'IsFloating', 3),
'Mem': ('Mem', 'ud', None, ('IsMemRef', 'IsLoad', 'IsStore'), 4),
'NPC': ('NPC', 'uw', None, ( None, None, 'IsControl' ), 4),
'NNPC':('NNPC', 'uw', None, ( None, None, 'IsControl' ), 4)
}};
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