Fixed-Point Blockset

FixPt Sign

Indicate the sign of the input

Description

The FixPt Sign block is a masked S-function that indicates the sign of the input:

• The output is 1 when the input is greater than zero.
• The output is 0 when the input is equal to zero.
• The output is -1 when the input is less than zero.

The output is a signed data type with the same number of bits as the input, and with nominal scaling (a slope of one and a bias of zero).

Parameters and Dialog Box

Characteristics

Input Port	Any data type supported by the blockset
Output Port	A signed Fixed-Point Blockset data type
Direct Feedthrough	Yes
Sample Time	Inherited
Scalar Expansion	N/A
States	0
Vectorized	Yes

FixPt Saturation

FixPt Sum