getmsb

R2026b

Most significant bit

Syntax

c = getmsb(a)

Description

c = getmsb(a) returns the value of the most-significant bit in a.

Examples

Find Most-Significant Bit in fi Object

Use the getmsb function to find the most-significant bit in the fi object a.

a = fi(-26, 1, 6, 0);
c = getmsb(a)

c = 
     1

          DataTypeMode: Fixed-point: binary point scaling
            Signedness: Unsigned
            WordLength: 1
        FractionLength: 0

You can verify that the most significant bit in the fi object a is 1 by looking at the binary representation of a.

disp(bin(a))

100110

Input Arguments

a — Input fi object

scalar | vector | matrix | multidimensional array

Input fi object, specified as a scalar, vector, matrix, or multidimensional array. The getmsb function supports only fixed point fi objects.

Data Types: int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | fi

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

HDL Code Generation
Generate VHDL, Verilog and SystemVerilog code for FPGA and ASIC designs using HDL Coder™.

Version History

Introduced in R2007b

R2026b: getmsb supports built-in integer types

The getmsb function now accepts built-in integer types as inputs.