Overview

General logical comparison module

Discussion

This module implements a general purpose logical comparison module that is capable of realizing many different comparison functions. The behavior of the logic compare is controlled by the compareType parameter. compareType is an integer in the range from 0 to 5 inclusive. The following list discusses the various compare operations types,. compareType = 0, performs logic equal operation.

compareType = 1, performs logic not equal operation.

compareType = 2, performs logic lessthan operation.

compareType = 3, performs logic lessthan equal operation.

compareType = 4, performs logic greaterthan operation.

compareType = 5, performs logic greaterthan equal operation.

Type Definition

typedef struct _ModuleLogicCompareFract32
{
    ModuleInstanceDescriptor instance;            // Common Audio Weaver module instance structure
    INT32 compareType;                            // Selects the type of comparison that is implemented by the module: EQUAL=0 NOTEQUAL=1 LESSTHAN=2 LESSOREQUAL=3 GREATERTHAN=4 GREATEROREQUAL=5
} ModuleLogicCompareFract32Class;

Variables

Properties

Name	Type	Usage	isHidden	Default value	Range	Units
compareType	int	parameter	0	0	0:5

Pins

Input Pins

Name: in1

Description: Audio input 1

Data type: fract32

Channel range: Unrestricted

Block size range: Unrestricted

Sample rate range: Unrestricted

Complex support: Real

Name: in2

Description: Audio input 2

Data type: fract32

Channel range: Unrestricted

Block size range: Unrestricted

Sample rate range: Unrestricted

Complex support: Real

Output Pins

Name: out

Description: Logical output

Data type: int

MATLAB Usage

File Name: logic_compare_fract32_module.m

 M=logic_compare_fract32_module(NAME)
 Creates a general purpose comparison module that implements a number
 of standard logical operations.  The module has two input pins, each
 with an arbitrary number of interleaved channel.  The module performs
 the comparison on a sample-by-sample basis.  Arguments:
    NAME - name of the module.
 The comparison operation implemented by the module is based on the variable
   compareType - integer specifying the type of the design (details below).
 The variable compareType determines what comparison function is run:
   0 = performs logical  equal operation
   1 = performs logical  not equal operation
   2 = performs logical  less than operation
   3 = performs logical  less than equal operation
   4 = performs logical  greater operation
   5 = performs logical  greater than equal operation