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diff --git a/arch/mips/isa/operands.isa b/arch/mips/isa/operands.isa
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+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),
+ 'sf' : ('float', 32),
+ 'df' : ('float', 64),
+ 'qf' : ('float', 128)
+}};
+
+def operands {{
+ 'Rd': IntRegOperandTraits('uw', 'RD', 'IsInteger', 1),
+ 'Rs': IntRegOperandTraits('uw', 'RS', 'IsInteger', 2),
+ 'Rt': IntRegOperandTraits('uw', 'RT', 'IsInteger', 3),
+
+ 'IntImm': IntRegOperandTraits('uw', 'INTIMM', 'IsInteger', 3),
+ 'Sa': IntRegOperandTraits('uw', 'SA', 'IsInteger', 4),
+
+ 'Fd': FloatRegOperandTraits('sf', 'FD', 'IsFloating', 1),
+ 'Fs': FloatRegOperandTraits('sf', 'FS', 'IsFloating', 2),
+ 'Ft': FloatRegOperandTraits('sf', 'FT', 'IsFloating', 3),
+
+ 'Mem': MemOperandTraits('udw', None,
+ ('IsMemRef', 'IsLoad', 'IsStore'), 4)
+
+ #'NPC': NPCOperandTraits('uq', None, ( None, None, 'IsControl' ), 4),
+ #'Runiq': ControlRegOperandTraits('uq', 'Uniq', None, 1),
+ #'FPCR': ControlRegOperandTraits('uq', 'Fpcr', None, 1),
+ # The next two are hacks for non-full-system call-pal emulation
+ #'R0': IntRegOperandTraits('uq', '0', None, 1),
+ #'R16': IntRegOperandTraits('uq', '16', None, 1)
+}};