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Inherent addressing
Here the address is already built in to the instruction i.e. inherent to the code ABA ; Add A to B and store the answer in A Simple programs using the 68HC11 language
This section of functions include instructions such as ALU functions, simple movement and logically operations .Let us consider the addition of two 8 bit numbers
Program One: Data is immediate LDAA #$fe ; Load hex fe into accumulator A ADDA #$1 ; Add 1 hex to A i.e total = ff hex Program two: Direct addressing and extended addressing
Assume the data is stored at the following Ram address
Address Data 501 fe Number One 502 01 Number Two 503 Result LDAA $501 ;Load fe from address 501 into A ADDA $502 ;Add 01 from address 502 into A STAA $503 ;Store the answer ff at address 503 Program three: Index addressing
Address Data 500 fe Number One 501 01 Number Two 502 Result LDX #$500 ;Load IX with 500 base address LDAA $0,X ;Load data from 500 + 0 into A i.e fe ADDA $1,X ;Add data from 500+1 to A i.e ff STAA $2,X ;Store A at address 500+2
Explain about Magnetic tape a) They are mostly used for keeping files of data b )It is one of the cheapest and slowest methods for storage
Q. What do you mean by Software Poll? In this scheme on occurrence of an interrupt, processor jumps to an interrupt service program or routine whose job is to poll (roll call
Binary is an alternative number system which works very good for computers. Humans have ten fingers; that's probably why we use ten digits (0, 1, 2, 3, 4, 5, 6, 7, 8, and 9) in our
Universal Serial Bus - computer architecture: USB Universal Serial Bus Speed Low-speed(1.5 Mb/s) High-speed(480 Mb/s) Full-speed(12 Mb/s) De
First-Order Inference Rules: Here now we have a clear definition of a first-order model is that we can define soundness for first-order inference rules in the same way such we
What is SCSI? Ans: It is the acronym for small computer system interface. It refers to a standard bus explained ANSI. Devices such as disks are linked to a computer via 50-wire
Define formal language grammar? A formal language grammar is a set of formation rules which describe that strings made by the alphabet of a formal language are syntactically va
What is Optical character recognition (OCR) Information on paper is automatically read by a scanner and is then processed/analysed by OCR software and stored in an electronic
The First In First Out method assumes items of stocks are issued in the same order as they are received. Thus the goods received first are assumed to be the first to be issued .Any
Question 1 Discuss the working principle of an interrupt and hardware actions in interrupt handling 2 Discuss the important characteristics of 8237 3 Describe the format
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