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#!/usr/bin/env python
class RoundingMode(object):
_immutable_ = True
def __init__(self, value, literal):
self.value = value
self.literal = literal
def __int__(self):
return self.value
def __repr__(self):
return self.literal
RNE = RoundingMode(0b000, 'rne') # Round to nearest, ties to even
RTZ = RoundingMode(0b001, 'rtz') # Round towards zero
RDN = RoundingMode(0b010, 'rdn') # Round down (towards -inf)
RUP = RoundingMode(0b011, 'rup') # Round up (towards +inf)
RMM = RoundingMode(0b100, 'rmm') # Round to nearest, ties to maximum magnitude
DYN = RoundingMode(0b111, 'dyn') # Use the rounding mode register
all_rounding_modes = [RNE, RTZ, RDN, RUP, RMM, DYN]
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