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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 {{
+ #General Purpose Integer Reg Operands
+ 'Rd': ('IntReg', 'uw', 'RD', 'IsInteger', 1),
+ 'Rs': ('IntReg', 'uw', 'RS', 'IsInteger', 2),
+ 'Rt': ('IntReg', 'uw', 'RT', 'IsInteger', 3),
+
+ #Operands used for Link or Syscall Insts
+ 'R31': ('IntReg', 'uw','31','IsInteger', 4),
+ 'R2': ('IntReg', 'uw','2', 'IsInteger', 5),
+
+ #Special Integer Reg operands
+ 'HI': ('IntReg', 'uw','32', 'IsInteger', 6),
+ 'LO': ('IntReg', 'uw','33', 'IsInteger', 7),
+
+ #Immediate Value operand
+ 'IntImm': ('IntReg', 'uw', 'INTIMM', 'IsInteger', 3),
+
+ #Floating Point Reg Operands
+ 'Fd': ('FloatReg', 'sf', 'FD', 'IsFloating', 1),
+ 'Fs': ('FloatReg', 'sf', 'FS', 'IsFloating', 2),
+ 'Ft': ('FloatReg', 'sf', 'FT', 'IsFloating', 3),
+ 'Fr': ('FloatReg', 'sf', 'FR', 'IsFloating', 3),
+
+ #Special Floating Point Control Reg Operands
+ 'FIR': ('FloatReg', 'uw', '32', 'IsFloating', 1),
+ 'FCCR': ('FloatReg', 'uw', '33', 'IsFloating', 2),
+ 'FEXR': ('FloatReg', 'uw', '34', 'IsFloating', 3),
+ 'FENR': ('FloatReg', 'uw', '35', 'IsFloating', 3),
+ 'FCSR': ('FloatReg', 'uw', '36', 'IsFloating', 3),
+
+ #Operands For Paired Singles FP Operations
+ 'Fd1': ('FloatReg', 'sf', 'FD', 'IsFloating', 4),
+ 'Fd2': ('FloatReg', 'sf', 'FD+1', 'IsFloating', 4),
+ 'Fs1': ('FloatReg', 'sf', 'FS', 'IsFloating', 5),
+ 'Fs2': ('FloatReg', 'sf', 'FS+1', 'IsFloating', 5),
+ 'Ft1': ('FloatReg', 'sf', 'FT', 'IsFloating', 6),
+ 'Ft2': ('FloatReg', 'sf', 'FT+1', 'IsFloating', 6),
+ 'Fr1': ('FloatReg', 'sf', 'FR', 'IsFloating', 7),
+ 'Fr2': ('FloatReg', 'sf', 'FR+1', 'IsFloating', 7),
+
+ #Memory Operand
+ 'Mem': ('Mem', 'uw', None, ('IsMemRef', 'IsLoad', 'IsStore'), 4),
+
+ #Program Counter Operands
+ 'NPC': ('NPC', 'uw', None, ( None, None, 'IsControl' ), 4),
+ 'NNPC':('NNPC', 'uw', None, ( None, None, 'IsControl' ), 4)
+}};