(8.D.2.2) LogicCompareConstInt32
- Catherine Spain
Overview
Compares the value at the input pin against a stored value
Discussion
This module implements a general purpose logical compare module against stored integer value that is capable of realizing many different logic operations. 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 listdiscusses the various compare oprations types and which variables are active in each case. compareType = 0, performs logic equal operation.
compareType = 1, performs logic not equal operation.
compareType = 2, performs logic less than operation.
compareType = 3, performs logic less than equal operation.
compareType = 4, performs logic greater than operation.
compareType = 5, performs logic greater than equal operation.
For example, when compareType == 2, the output pin equals the Boolean value (input < constValue)
Type Definition
typedef struct _ModuleLogicCompareConstInt32
{
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
INT32 constValue; // Selects value against to compare against. In linear integer units.
} ModuleLogicCompareConstInt32Class;Variables
Properties
Name | Type | Usage | isHidden | Default value | Range | Units |
compareType | int | parameter | 0 | 0 | 0:5 | Â |
constValue | int | parameter | 0 | 0 | Unrestricted | Â |
Pins
Input Pins
Name: in
Description: audio input
Data type: int
Channel range: Unrestricted
Block size range: Unrestricted
Sample rate range: Unrestricted
Complex support: Real
Output Pins
Name: out
Description: audio output
Data type: int
MATLAB Usage
File Name: logic_compare_const_int_module.m
M=logic_compare_const_int_module(NAME)
Creates a general purpose compare module that implements a number
of standard logical operations. The module operates on multiple interleaved
channels, with all channels being processed.
Arguments:
NAME - name of the module.
The module has the following variables that control the design:
compareType - integer specifying the type of the design (details below).
The argument compareType determines what design routine is run, and not
all input arguments are used in all cases:
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 operationÂ