0
Instruction register is use to store the next instruction to be executed.
Instruction decoder is use to decode the instruction come from the memory and tell the CPU what is instruction really are. (CPU interpret instruction is different from the data store in the memory . A good example is , memory can store hexadecimal, but device only can read binary data.) without decoder the device cannot indicate or recognize the data )
Distinction
"memory can store hexadecimal, but device only can read binary data" This is an improperly worded, misleading statement. The difference between binary and hexadecimal is purely interpretive. Reading hexadecimal is a function of dividing the bits into groups of 4 and assigning a unique symbol to the pattern; 0-9 + A-F. This is only translating from one numbering system to another. The memory isn't specifically able to store hexadecimal as opposed to binary; it stores a BYTE as a group of EIGHT BITS no matter what. So even if the hardware is designed to move 64 bits at a time, grouping the bits into nibbles of four bits is how we interpret the bit pattern in hexadecimal.
Another Answer <<< Truth!
Instruction Register is where the instruction bit pattern is loaded for execution. Instruction Decoder is all the hardware logic that is cascade triggered by the instruction bit pattern during execution.
What else can I help you with?
What cycle is used by the CPU to execute instructions in a programs?
fetch,decode
What the Difference between accumulator and register?
The accumulator is a general register that holds a value. It is also a special register that can be used as the target for the result of various arithmetic or logical computations. For instance, if you wanted to add two numbers, you could load the first into the accumulator, add the second to the accumulator, and then store the accumulator where wanted. The instruction register is an internal register that holds the value of the instruction opcode in order for the 8085 to decode and process the instruction. While it is shown on the Intel block diagram for the 8085, it is not directly accessible by the running program - it is for internal use only by the 8085.
What is the difference between translation and tanscription?
When the information is decode from DNA to RNA then it is said Transcription. When the information is decoded from RNA to Amino acid then it is said to be Transcription.
How do you decode Honda accord 2000 radio?
I do not know what you mean by decode. If you are wanting to know what the code is for your 2000 Accord it is easy to find out. Just go register your Honda at the Honda Owners Link I will provide. Once you register the car you can get the radio code there for free by simply asking. Click the link and sign up.
What the Difference between accumulator and instruction register?
Examples: /360: no accumulator 8080: A 6800: A and B 8086: AX ...
What are the release dates for Tetsuwan Birdy Decode - 2008 Between You and Me 2-26?
Tetsuwan Birdy Decode - 2008 Between You and Me 2-26 was released on: USA: November 2010
How does a control unit work?
CPU is a wonder full machine. it has two main parts 1st is cu and other is arithmetic logic unit. It execute the instructions of program which is supported by CPU. IT works on special registers and a decoder to decode the instructions. the special registers named as instruction register and program register.
How do you decode the output of both ring and Johnson counters to distinguish between all the counting sequences?
How do you decode the output of both ring and Johnson counters to distinguish between all the counting sequences?
The proper sequence of actions in a machine cycle is?
The proper sequence of actions in a machine cycle typically includes fetch, decode, execute, and writeback. During fetch, the CPU retrieves instructions from memory. In decode, the CPU translates the instructions into signals the computer can understand. The execute stage involves actually carrying out the instruction, and writeback stores the result back into memory if needed.
CPU does not distinguish data and operation code explain?
As far as the bus interface is concerned, there is no real difference between data and instructions. Except for the S0 pin, an opcode fetch will look the same as a memory read. There is one extra clock cycle following an opcode fetch, which is used by the CPU to decode and process the opcode, but the bus does not care because there is no sequence initiation with ALE.
How does a microprocessor decode?
How does a microprocessor decode?
What is the difference between bus cycle and instruction cycle?
Bus cycle refers to the process of transferring data between the CPU and memory or peripherals, while instruction cycle refers to the series of steps that the CPU goes through to fetch, decode, and execute instructions. In other words, bus cycle involves the movement of data, while instruction cycle involves the actual execution of instructions.
