DoubleToFix

Full Library / Math Operator / Transform / Basic /  DoubleToFix
Block Name: DoubleToFix

• public class DoubleToFix
• extends Converter

• This actor converts a DoubleToken to a FixToken with a specified precision. Note that this conversion is lossy, in that the output is an approximation of the input. The approximation can be constructed using a variety of rounding and overflow strategies.

The precision of the output is given by the precision parameter, which is an integer matrix of the form [m, n], where the total number of bits in the output is m, of which n are integer bits. The default precision is [16, 2], which means that an output has 16 bits, of which 2 bits represent the integer part.

The rounding strategy is defined by the rounding parameter and defaults to nearest (or half_floor), selecting the nearest representable value. The floor value nearer to minus infinity is used for values half way between representable values. Other strategies such as truncate are described under VisualSim.math.Rounding.

The overflow strategy is defined by the overflow parameter and defaults to saturate (or clip). Out of range values are saturated to the nearest representable value. Other strategies such as modulo are described under VisualSim.math.Overflow.

See Also:

• VisualSim.data.FixToken
• VisualSim.math.Overflow
• VisualSim.math.Precision
• VisualSim.math.Rounding
•  

precision

public Parameter precision

• The precision of the output fixed-point number, which is represented by a 2-element integer matrix.

overflow

public StringAttribute overflow

• The overflow strategy used, such as "saturate" or "modulo".

rounding

public StringAttribute rounding

• The rounding strategy used, such as "nearest" or "truncate".

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