Use floating-point multiplication to handle net slope corrections

Net slope correction computation for floating-point to fixed-point casts

Model Configuration Pane: Math and Data Types

Description

The Use floating-point multiplication to handle net slope corrections parameter specifies whether the Fixed-Point Designer™ software uses floating-point multiplication to perform net slope correction for floating-point to fixed-point casts.

Dependencies

This parameter requires a Fixed-Point Designer license.

Settings

off (default) | on

On: Use floating-point multiplication to perform net slope correction for floating-point to fixed-point casts.
Off: Use division to perform net slope correction for floating-point to fixed-point casts.

Tips

This optimization affects both simulation and code generation.
When converting from floating point to fixed point, if the net slope is not a power of two, slope correction using division improves precision. For some processors, use of multiplication improves code efficiency.

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	On (when target hardware supports efficient multiplication) Off (otherwise)
Safety precaution	No recommendation

Programmatic Use

Parameter: UseFloatMulNetSlope

Value: 'on' | 'off'

Default: 'off'

Version History

Introduced in R2011b