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Articles on Trending Technologies
Technical articles with clear explanations and examples
How to detect the screen size of iPhone 5?
Detecting screen size of an apple device is an easy and simple task. The UIKIT module of iOS SDK provides many functions and classes that deal with user interface, screen sizes and many other UI elements.One of them is UIScreen which deals with the device screen.UIScreen.main provides the current main screen of the device in use, which further has methods that return other features and properties of the current screen.To find if the current screen is an iPhone 5 or not, we’ll first have to find the current size of the screen and compare with a value. The height of ...
Read MoreWhat is the significance of Qutub Minar?
Qutub Minar located in the Qutub complex in New Delhi is one of the many historical and magnificent monuments in the capital city of New Delhi. It is located adjacent to the Quwwat-ul-Islam Mosque and is considered as its name suggests is the pillar of faith. The site is protected by the Archaeological Survey of India and the entry fee to the complex is Rs.10 and Rs.250 for Indians and foreigners respectively.Some significant aspects of the monument are −Highest tower − With a height of 72.5 meters Qutub Minar is the highest stone tower in India. It was constructed as ...
Read MorePin description of 6800
The Motorola M6800 is 40pin DIP Microprocessor. Here we will see the actual pin level diagram of M6800 and also the functional pin diagram of it.The M6800 requires some additional chips to provide the required functions. These chips are:6870 (clock generator)6830 (ROM) or 68708(EPROM)6810 (RAM)6820 (PeripheralInterface Adapter)6850 (AsynchronousCommunications Interface Adapter)6828 (PriorityInterrupt Controller)Now see the Pin Level diagram of Motorola M6800This is the actual pin diagram of the M6800 Microprocessor. Now we will see the functional pin diagram of it.Now let us see the Pin functions of the M6800 microprocessor.PinsTypeFunctionA15– A0Output16-bit address bus, which provides the addresses for memory (up to ...
Read MoreSet up a simple delegate to communicate between two view controllers in iPhone
In this article, you learn about delegates and creating delegates. First of all, What’s a delegate?Delegate is a simple term that refers to communication between objects. It is a simple way of connecting objects and communication between them.How does delegate work?A delegate is created with help of protocol. A protocol is declared in class, inside which some event will happen, that should notify other classes. In protocol we write the declaration of function and it is defined inside the calling class.How to create a delegate?We’ll do this with help of an example project.Steps to perform −Create a class, name it ...
Read MoreWhat are the problems faced by rural women in India today?
India today has reached the zenith of success in many fields like science and technology, literature, movies and much more. But, there are some issues that are still prevalent in the country and more prominently in the rural India.Rural India is the actual soul of the country where a maximum of its population resides yet it is also the most neglected and ignored by the Government. The major victims of the issues that are present in the rural India are the women. Rural Indian Women are facing a lot of problems.No access to educationAccording to ASER report 2014, only 1 ...
Read MoreAddressing modes of 6800
We have seen the Internal structure and registers of Motorola M6800 Microprocessor. In this section we will see the addressing modes of M6800.There are six addressing modes in M6800 MPU. These modes are −Immediate Addressing ModeImplied Addressing ModeDirect Addressing ModeExtended Addressing ModeIndexed Addressing ModeRelative Addressing ModeNow Let us see some basic syntax of M6800 Assembly Language Programming.If a number is 8CH in hexadecimal, then we have to use $ sign before it. So it will be $8C. A number without $ is treated as decimal number. Similarly, an immediate data is denoted by # symbol. #50FF is a data, but ...
Read MoreInstruction set of 6800
In this section, we will see the different types of instructions of Motorola M6800 microprocessor. There are 72 different types of instructions and 197 different opcodes. So there are 51 1-Byte instruction, 103 2-Byte instruction and 43 3-Byte instruction.As we know that the Intel 8085 has 246 opcodes, though 6800 is more powerful than 8085. The Z-80 has 700 instructions but M6800 has some more advanced branching instructions.The different instruction groups are like these −Data Transfer GroupArithmetic GroupLogical GroupBranch GroupMiscellaneous InstructionsData transfer GroupIn this group, there are 14 instructions. We can find 38 opcodes for these 14 instructions. These instructions ...
Read MoreHow to launch any arbitrary iPhone application from within another app?
iOS Allows us to open some applications with some links or other ways from our app, like dialing a number when clicked on it, or writing a mail with some static body or writing a SMS. But this is limited to some applications, not every app can be opened from within an application.Specifically it is limited to apps that have a registered URL Scheme. For example if you want to open a SMS from your app, it is possible using the registered URL Scheme.Some of the applications that can be opened with URL schemes and how to open them are ...
Read MoreWhat are all the custom URL schemes supported by the Facebook iPhone app?
A url Scheme is a way of iOS to open some third party applications from within a app. Some of the URL schemes that are supported by facebook to open different modules of facebook app from within some other app are mentioned below.1. To open facebook profile: fb://profile 2. To open request list: fb://requests 3. To open friends list : fb://friends 4. To open notes: fb://notes 5. To open the list of notifications : fb://notifications 6. To open albums: fb://albums 7. To open feeds/ home : fb://feed 8. To open events : fb://events 9. To open a page with id: ...
Read MoreInterrupts of 6800
In Motorola M6800, there are two hardware interrupt pins. These pins are NMI and. IRQ These pins are active low input pins. The first one is non-maskable and the second one is maskable and lower priority interrupt. When the IM flag is 1, or CCR register is set, the interrupt is masked or disabled.When the Micro processor enters into some Interrupt Service Subroutine (ISS), it uses SEI instruction to mask the interrupt even if the IRQ activated. The reverse action can be performed using the CLI instruction. It can unmask the interrupt.When in the interrupt is occurred, the M6800 follows ...
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