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The micro-instruction cycle can comprises two basic cycles: the fetch and execute. Here in the fetch cycle address of micro-instruction is produced and this micro-instruction is put in a register used for address of a micro-instruction for execution. Execution of a micro-instruction simply means production of control signals. These control signals can drive CPU (internal control signals) or system bus. Format of micro-instruction and its contents decide the complexity of a logic module that executes a micro-instruction.
One of the major features incorporated in a micro-instruction is encoding of micro-instructions. What is encoding of micro-instruction? For answering this question let's recall Wilkes control unit. In Wilkes control unit every bit of information either produces a control signal or form a bit of subsequent instruction address. Now let's presume that a machine requires N total number of control signals. If we follow Wilkes scheme we need N bits one for each control signal in CU.
What are interrupts? Interrupt: An interrupt is a hardware mechanism which enables an external device, classically input/output devices, to send a signal to the CPU. An int
Q. Describe about directory in DOC? We all know that, the volume of the hard disk is generally quite large (10 MB to a few GB). You can keep hundreds or even thousands of files
Multiple Instruction and Single Data stream (MISD): In this type of organization multiple processing elements are ordered under the control of multiple control units. Every contro
Karnaugh map is used for the purpose of ? Ans. Karnaugh map is used for, to minimize the terms in a Boolean expression.
Odd-Even Merging Circuit Let's firstly understand the idea of merging two sorted sequences using an odd-even merging circuit. The functioning of a merging circuit is as given b
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Computer Architecture Basics: Some of computer architecture at companies such like AMD and Intel uses more fine distinctions: Macro architecture- this is an architectura
Describe the Assume - Assembler directives ASSUME: This directive would be used to map the segment register names with memory addresses. Syntax is as below: ASSUME SS:
Explain about MMX architecture MMX architecture introduces new packed data types. Data types are eight packed, consecutive 8-bit bytes; four packed, consecutive 16-bit words;
Virtual Memory is a way of extending a computer's memory by using a disk file to replicate add'l memory space. The OS remain track of these add'l memory addresses on the hard disk
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