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Complex Instruction Set Computing (CISC) architectures, which utilize complex instruction sets, offer several advantages. They can execute complex operations in a single instruction, reducing the number of instructions per program and potentially saving memory. This can lead to higher performance for certain applications, especially those requiring heavy data manipulation. Additionally, CISC designs can simplify compiler design and reduce the overall code size, which is beneficial in memory-constrained environments.
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What do RISC and CISC stand for?
CISC: Complex Instruction Set ComputerRISC: Reduced Instruction Set Computer
What is the full form of rics and cics?
Reduced Instruction Set Computer Complex Instruction Set Computer
Type instruction set used by CPU that has a large number of instructions?
CISC (complex instruction set computing)
What is the acronym CISC?
Complex Instruction Set Computer.
What are the features of a complex instruction set computer?
It provides more instructions than RISC (Reduced Instruction Set Computer).
What is A set of instructions that a computer can understand directly?
A binary instruction code on a register.
Advantages of Application-specific instruction-set processor?
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What are the main types of MPUs?
The two major types of MPUs are CISCs (complex instruction set computing) and RISCs (reduced instruction set computing).
What are the Advantages and disadvantages of instruction set?
Advantages of an instruction set include the ability to simplify programming by providing a standardized set of commands for the processor, which can enhance compatibility and efficiency. It allows for optimizations at the hardware level, improving performance for specific tasks. However, disadvantages may include limitations in flexibility, as some high-level operations may not be directly supported, leading to complex workarounds. Additionally, a more extensive instruction set can increase the complexity of the CPU design and potentially lead to longer development times.
What is lahf instruction?
LAHF (Load Accumulator High Flag) is an assembly language instruction used in x86 architecture to load the status of the flags in the processor's status register into the lower byte of the accumulator (AL register). Specifically, it transfers the state of the Sign Flag (SF), Zero Flag (ZF), Auxiliary Carry Flag (AF), and Parity Flag (PF) into the AL register. This instruction is often utilized for status checking and manipulation in low-level programming. It is part of the instruction set that allows for more complex control flow and condition handling in assembly programming.
What are the advantages of RISC architecture over CISC?
CISC RISC Emphasis on hardware Emphasis on software Includes multi-clockcomplex instructions Single-clock,reduced instruction only Memory-to-memory:"LOAD" and "STORE"incorporated in instructions Register to register:"LOAD" and "STORE"are independent instructions Small code sizes,high cycles per second Low cycles per second,large code sizes Transistors used for storingcomplex instructions Spends more transistorson memory registers RISC-Means Reduced Instruction Set Computer.aRiscsystem has reduced number of instructions and moreimportantly it is load store architecture werepipelining can be implemented easily.Eg.ATMEL AVRCISC-Means Complex instruction set architecure.A CISCsystem has complex instructions such as directaddition between data in two memory locations.Eg.8085Simplicity of the instruction set means that they get processed faster (less branching). You get performance improvements if the gain in speed is not offset by the necessary increase in instructions.
Which one from RISC and CISC is mostly used and why?
RISC (Reduced Instruction Set Computer) architectures are more commonly used in modern computing, particularly in mobile devices and embedded systems, due to their efficiency and performance advantages. RISC designs simplify the instruction set, allowing for faster execution and easier pipelining, which enhances overall processing speed. In contrast, CISC (Complex Instruction Set Computer) architectures, while powerful for certain tasks, often result in more complex hardware and slower execution due to longer instruction cycles. Thus, RISC's focus on simplicity and speed makes it the preferred choice in many applications today.
