Internal address latch in 8085 Microprocessor

George John
Updated on 30-Jul-2019 22:30:25

568 Views

The select unit of the register in the 8085 selects any one of the register pairs (BC, DE, HL, SP, PC, or WZ) for sending them to it to the latch unit specified for addressing. For example, the contents of the PC be C200H. If the selection unit be the register which selects the PC, and sends C200H from the PC to the address latch internally thereafter the latch holds the specified value and sends directly out to the pins of the address after buffering. The Most Significant Byte of the address i.e. the C2H, is sent out to the ... Read More

Count multiple occurrences of separate texts in MySQL?

George John
Updated on 30-Jul-2019 22:30:25

401 Views

You can use aggregate function count along with if() for this. To understand the concept, let us create a table. The query to create a table is as followsmysql> create table CountOccurrencesDemo    -> (    -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    -> TechnicalSubject varchar(100)    -> ); Query OK, 0 rows affected (0.68 sec)Now you can insert some records in the table using insert command. The query is as followsmysql> insert into CountOccurrencesDemo(TechnicalSubject) values('Java'); Query OK, 1 row affected (0.14 sec) mysql> insert into CountOccurrencesDemo(TechnicalSubject) values('MongoDB'); Query OK, 1 row affected (0.13 sec) mysql> insert into ... Read More

Order by a function of two columns in a single MySQL query

Ankith Reddy
Updated on 30-Jul-2019 22:30:25

189 Views

Let us first create a tablemysql> create table orderByAFunctionDemo    -> (    -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    -> FirstNumber int,    -> SecodNumber int    -> ); Query OK, 0 rows affected (0.44 sec)Insert some records in the table using insert command. The query is as follows −mysql> insert into orderByAFunctionDemo(FirstNumber, SecodNumber) values(10, 4); Query OK, 1 row affected (0.11 sec) mysql> insert into orderByAFunctionDemo(FirstNumber, SecodNumber) values(45, 78); Query OK, 1 row affected (0.17 sec) mysql> insert into orderByAFunctionDemo(FirstNumber, SecodNumber) values(23, 10); Query OK, 1 row affected (0.12 sec) mysql> insert into orderByAFunctionDemo(FirstNumber, SecodNumber) values(67, ... Read More

C++ Program to Implement Network_Flow Problem

Daniol Thomas
Updated on 30-Jul-2019 22:30:25

700 Views

This is a C++ Program to implement Network_Flow problem using Ford Fulkerson algorithm.Algorithms:Begin    function bfs() returns true if there is path from source s to sink t in    the residual graph which indicates additional possible flow in the graph. End Begin    function fordfulkarson() return maximum flow in given graph:    A) initiate flow as 0.    B) If there is an augmenting path from source to sink, add the path to flow.    C) Return flow. EndExample Code#include #include #include #include #define n 7 using namespace std; bool bfs(int g[n][n], int s, int ... Read More

Iterate through Quartet class in JavaTuples

Samual Sam
Updated on 30-Jul-2019 22:30:25

198 Views

You can also iterate through Quartet class like Arrays using a loop.Let us first see what we need to work with JavaTuples. To work with Quartet class in JavaTuples, you need to import the following package −import org.javatuples.Quartet;Note − Steps to download and run JavaTuples program. If you are using Eclipse IDE to run Quartet Class in JavaTuples, then Right Click Project → Properties → Java Build Path → Add External Jars and upload the downloaded JavaTuples jar file.The following is an example −Exampleimport org.javatuples.Quartet; public class Demo { public static void main(String[] args) { ... Read More

What do the id and scope attribute mean in the action elements in JSP?

Ankith Reddy
Updated on 30-Jul-2019 22:30:25

547 Views

These are two attributes that are common to all Action elements: the id attribute and the scope attribute.Id attributeThe id attribute uniquely identifies the Action element and allows the action to be referenced inside the JSP page. If the Action creates an instance of an object, the id value can be used to reference it through the implicit object PageContext.Scope attributeThis attribute identifies the lifecycle of the Action element. The id attribute and the scope attribute are directly related, as the scope attribute determines the lifespan of the object associated with the id. The scope attribute has four possible values:(a) ... Read More

8085 program to add three 16 bit numbers stored in registers

Arjun Thakur
Updated on 30-Jul-2019 22:30:25

2K+ Views

In this program we will see how to add three 16-bit numbers stored in register pairs.Problem StatementWrite 8085 Assembly language program to add three 16-bit numbers stored in register pair BC, DE and HL. Store the result at DE register pair.DiscussionIn this program we are storing the 16-bit numbers into BC, DE and HL pair. We have DAD D instruction which helps to add HL and DE register pair, and store the result into HL pair. After that copy BC to DE, then again perform DAD D to add them. Finally using XCHG we are storing them into DE register ... Read More

How to use Radar Chart graph in android?

Jennifer Nicholas
Updated on 30-Jul-2019 22:30:25

1K+ Views

This example demonstrates How to use Radar chart graph in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Open build.gradle(module level) and add library dependency.apply plugin: 'com.android.application' android {    packagingOptions {       exclude 'META-INF/proguard/androidx-annotations.pro'    }    packagingOptions {       exclude 'META-INF/DEPENDENCIES'       exclude 'META-INF/LICENSE'       exclude 'META-INF/LICENSE.txt'       exclude 'META-INF/license.txt'       exclude 'META-INF/NOTICE'       exclude 'META-INF/NOTICE.txt'       exclude 'META-INF/notice.txt'       ... Read More

How to insert images in Database using JDBC?

Nancy Den
Updated on 30-Jul-2019 22:30:25

5K+ Views

The setBinaryStream() method of the PreparedStatement interface accepts an integer representing the index of the parameter and an InputStream object and sets the parameter to the given InputStream object. Whenever you need to send very large binary value you can use this method.And SQL databases provide a datatype named Blob (Binary Large Object) in this you can store large binary data like images.Storing image using JDBCIf you need to store an image in a database using the JDBC program create a table with a Blob datatype as shown below:CREATE TABLE Tutorial(Name VARCHAR(255), Type INT NOT NULL, Logo BLOB);Now, using JDBC, connect ... Read More

C++ Program to Implement The Edmonds-Karp Algorithm

Daniol Thomas
Updated on 30-Jul-2019 22:30:25

4K+ Views

This is a C++ Program to Implement the Edmonds-Karp algorithm to calculate maximum flow between source and sink vertex.Algorithm:Begin    function edmondsKarp() :       initiate flow as 0.       If there is an augmenting path from source to sink, add the path to flow.       Return flow. EndExample Code#include #include #include #include #include using namespace std; int c[10][10]; int flowPassed[10][10]; vector g[10]; int parList[10]; int currentPathC[10]; int bfs(int sNode, int eNode)//breadth first search {    memset(parList, -1, sizeof(parList));    memset(currentPathC, 0, sizeof(currentPathC));    queue q;//declare queue vector    q.push(sNode);    parList[sNode] = -1;//initialize parlist’s ... Read More

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