Do different processors have different instruction sets?

Different computer processors can use almost the same instruction set while still having very different internal design. Both the Intel Pentium and AMD Athlon processors use nearly the same x86 instruction set. The hardware design is more efficient and faster for running programs than the emulated software version.

How many instruction pipeline does a Pentium processor have?

The Pentium has two pipelines, named the U pipe and the V pipe. At some points in the pipeline some instructions may prevent other instructions from advancing in the pipeline because of conflicts in register usage or address generation.

What instruction set does Intel use?

x86
x86 is a family of instruction set architectures initially developed by Intel based on the Intel 8086 microprocessor and its 8088 variant.

What is the instruction set of a CPU?

An instruction set is a group of commands for a CPU in machine language. The term can refer to all possible instructions for a CPU or a subset of instructions to enhance its performance in certain situations.

Do instruction sets matter?

Instruction sets do matter. They make a difference to performance, power consumption, price, tool availability, and a bunch of other vectors.

Which of the following types of processors have larger instruction sets that takes more than one cycle per instruction?

CISC
Characteristic of CISC – Instructions are larger than one-word size. Instruction may take more than a single clock cycle to get executed.

How does instruction pipeline work?

An instruction pipeline reads instruction from the memory while previous instructions are being executed in other segments of the pipeline. Thus we can execute multiple instructions simultaneously. The pipeline will be more efficient if the instruction cycle is divided into segments of equal duration.

How does an integer pipeline of Pentium processor works?

The embedded Pentium processor is a superscalar machine, built around two general purpose integer pipelines and a pipelined floating-point unit capable of executing two instructions in parallel. Both pipelines operate in parallel, allowing integer instructions to execute in a single clock in each pipeline.

What is included in an instruction set?

An instruction set is a list of all the instructions that a processor can execute. Such instructions include arithmetic operations such as add and subtract, logical operations such as AND, OR and NOT, data instructions such as move, input and output, and control instructions such as goto, call and return.

How many bits of addressing does the Pentium® Pro processor support?

The Pentium ® Pro processor supports 36 bits of addressing when the PAE bit is set. Processor supports the CR4.MCE bit, enabling machine check exceptions. However, this feature does not define the model-specific implementations of machine-check error logging, reporting, or processor shutdowns.

How to identify the Intel® instruction set extensions?

You can use the Intel identification utility, click on CPU Technologies tab, and look up the Intel® Instruction Set Extensions. See the example below: SSE is a processor technology that enables single instruction multiple data. Older processors only process a single data element per instruction.

What is an example of a common instruction set between processors?

Processors with different microarchitectures can share a common instruction set. For example, the Intel Pentium and the Advanced Micro Devices Athlon implement nearly identical versions of the x86 instruction set, but have radically different internal designs.

What is the maximum length of an instruction in x86?

The longest possible instruction on x86 is 15 bytes (120 bits). Within an instruction set, different instructions may have different lengths. In some architectures, notably most reduced instruction set computers (RISC), instructions are a fixed length, typically corresponding with that architecture’s word size.