0
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.
What else can I help you with?
What is the main difference between RISC and CISC in computer architecture?
Reduced Instruction Set Computer (RISC) vs. Complex Instruction Set Computer (CISC). (1) CISC computers typically require more than one clock cycle to execute a given instruction (2) RISC computers typically require only one clock cycle to execute a given instruction That said, a CISC "opcode" can often perform more than a RISC "opcode". This results in much shorter code for CISC machines which is much easier to read and maintain. That said, CISC computers often have "dead cycles" in which the processor isn't doing anything useful, or is performing a redundant command. As an example, if one tries to do a MULT memoryLoc1, memoryLoc2, register followed by an ADD memoryLoc1, memoryLoc2, anotherRegister, then a CISC machine must access main memory (or cache) 4 times and perform 2 computations and two moves from the ALU to a register. A RISC machine (while requiring more, but simpler, instructions) would never need to go out to memory for the additional 2 times since the information was already retrieved. Memory access can be a very time expensive operation. All in all, RISC code is much more optimize-able and significant performance improvements can be realized over CISC.
What are the advantages of risc and cisc?
Reduced Instruction Set Computing (RISC) is a CPU design concept that seeks gains in power as a trade-off for simplified instructions. This design philosophy is directly opposed to Complex Instruction Set Computing (CISC), which is the basis of the x86 style processors of the vast majority of home PCs and laptops.Performance-OrientedThe construction of the RISC processor is such that performance is the priority, rather than raw power. When RISC and CISC were developed, the bottleneck of microprocessors was power, meaning that CISC won out and efficient, performance-oriented chips were used less and less. RISC came back into vogue when the need increased for chips that make efficient use of portable battery power.Less VersatileSince the instruction set is so simple, that is, one instruction per cycle, RISC processors tend to be better used for simple and repetitive logic operations. CISC processors are truly "general purpose," meaning that they can pipeline multiple instructions at once without a preference for simpler or more complex applications. RISC processors need to be programmed in a very particular fashion.SimplerThe performance orientation of the RISC architecture is due to its simple and efficient instruction set. This simplicity means that RISC processors are easier to design and inexpensive to produce, making them ideal for purpose-built and cheap computing machines that execute repetitive instructions.Long Instruction StringsRISC processors can be adapted to run CISC style instruction strings, but they are incredibly inefficient at doing so. Since a RISC processor can only handle one instruction string at a time, code needs to be more compartmentalised and, therefore, more complicated.
What is a CISC processor?
"CISC" stands for Complex Instruction Set Computer, CISC processor can execute complex instructions in one or more clock cycles. It is meant to differentiate it from a RISC or Reduced Instruction Set Computer, which can only perform one simple instruction in (usually) one clock cycle. A CISC is meant to have many machine level commands carried out as part of a single assembly command. The assembly command is broken into a series of "micro-code" commands which are executed internal to the processor by a "micro-code sequencer".
What are the disadvantages of processor?
Reduced Instruction Set Computing (RISC) is a CPU design concept that seeks gains in power as a trade-off for simplified instructions. This design philosophy is directly opposed to Complex Instruction Set Computing (CISC), which is the basis of the x86 style processors of the vast majority of home PCs and laptops.Performance-OrientedThe construction of the RISC processor is such that performance is the priority, rather than raw power. When RISC and CISC were developed, the bottleneck of microprocessors was power, meaning that CISC won out and efficient, performance-oriented chips were used less and less. RISC came back into vogue when the need increased for chips that make efficient use of portable battery power.Less VersatileSince the instruction set is so simple, that is, one instruction per cycle, RISC processors tend to be better used for simple and repetitive logic operations. CISC processors are truly "general purpose," meaning that they can pipeline multiple instructions at once without a preference for simpler or more complex applications. RISC processors need to be programmed in a very particular fashion.SimplerThe performance orientation of the RISC architecture is due to its simple and efficient instruction set. This simplicity means that RISC processors are easier to design and inexpensive to produce, making them ideal for purpose-built and cheap computing machines that execute repetitive instructions.Long Instruction StringsRISC processors can be adapted to run CISC style instruction strings, but they are incredibly inefficient at doing so. Since a RISC processor can only handle one instruction string at a time, code needs to be more compartmentalised and, therefore, more complicated.
Advantages of RISC processor?
The advantages are that a simpler instruction set found in a RISC processor are easier for compilers to write programs in, as well as the simple design of the processor that is allowed to result from this simple instruction set. In the past, CISC processors were used when people had to program in the assembly language of the processor itself. These processors had many different instructions that could perform complicated operations with one instruction, making the assembly programmers life easier. Eventually, we wrote programs called compilers which converted high level languages, such as C, into these assembly instructions. As C is much easier to program in than assembly language, this made our lives even easier. Unfortunately, it was found that it was difficult to program a compiler in such a way that it could realise when these complicated instructions offered by the CISC processor would be useful. This, in addition to the fact that some complicated instructions were actually slower than a series of simple instructions that performed the same task, meant that it was easier to write compilers that only used the simple instructions. By cutting out the complicated instructions, simpler processor designs could be used, and this is, in essence, what a RISC processor is. Of course, the most popular desktop architecture today, x86, is a CISC processor, but this was a case of people unwilling to change to a different instruction set. Ultimately, modern processors which use the x86 architecture actually convert the CISC instructions of the architecture into a simpler RISC-like series of instructions, before being executed on the processor. So, to sum up: + simpler processor design + simpler instruction set + easier for compilers to write programs for
How are mainframes and supercomputers different from personal computers and embedded computers?
mainframe and supercomputer 1.used for high processing 2.work on RISC technology 3.more than one processor used to assemble one computer 4.support synchronus and asyncronu multi processing that is hardware based not software. 5.latest and highest performance processer used and online HDD for bulk of storage Personal Computer 1.used for low end processing like office and home work. 2. support only CISC & RISC technology depend on processor type. 3.low performance hardware used to assemble cheaper PC. Embedded System 1.Embeded used to process specified task for example talking washing machine, auto temprature adjust freege, signal light that count seconds these all are example of embedded system that have its own small embedded processor, memeory and specific small task to do. 2. Embeded systems are cheaper then PC, Mainframe and Super computers..
What is gold mostly used for?
Mostly it is used to back national currencies as it is considered one of the rarest and most valuble elements on Earth.
Where can I find a Streetlight Manifesto shirt and get it really quickly?
Just buy one off of the Risc Store. I got mine in under a week.
What are Volumetric flash and how are they used?
The volumetric flash is used to measure one specific volume. They are mostly used in mixing solutions where a one liter or one half a liter is needed.
Where is the IIR filter used?
IIR Filter is one of the Digital Filters .it is used mostly in Audio Signals Processing
What is one miljard?
It is another word for 1 billion. Mostly used in European languages.
What is CISK and RISK?
I think you mean 'CISC' and 'RISC'. These refer to two ways of designing an instruction set for a computers processor or CPU. CISC is Complex Instruction Set Computer. This is how computers all used to be designed. The chip designer added an instruciton to the CPU for pretty much anything that they thought would be useful. This produced a complex chip. Early chips like Intel 8088/86 and Motorola 68000 were designed in this way. RISC stands for Reduced Instruction Set Computer. On these chips, the instruction set is paired down to the absolute minimum needed, and complex operations are performed with multiple instructions. This simplifies the chip design and makes it easier to design a chip which runs at faster clock speeds (Mhz or GHz) and with lower power consumption. It also makes it easier for the compiler to optimise it's output, in most cases. Examples of RISCs are the ARM family and the MIPS family. Nowadays it's difficult to put many CPUs firmly in one or the other category, because they contain elements of both philosophies.
