Question

for Intel Pentium IV processor answer the following

Is the uP CISC or RISC? Describe the interrupt structure

Answer 1

Classic Pentium 4 has CISC but with a few features of RISC like pipelining and superscalar.

In todays up there is very little differnece in RISC and CISC The major difference in the codes or instruction set they contain.

THE HARDWARE REQUIREMENT FOR BOTH RISC AND CISC MACHINES ARE VERY DIIFFERENT BUT IF ONE WANTS TO CONVERT THE CISC CODE INTO RISC WITHOUT CHANGEING HARDWARE CAN DO IT BUT IT IS BIT TOUGH AND AS PER MACHINE REQUIREMENT THE SPEED OF MACHINE REDUCES BY 50 PERCENT MAXIMUM HENCE GENERALLY AVOIDED.

CISC(COMPLEX INSTRUCTION SET COMPUTERS)

CISC processors are very large strong and very powerfull instruction sets which can do very high level of operation.But as the instruction sets are very large hence the control bus is mostly overloded and makes it slow...

while RISC HAS SMALLER INSTRUCTION SET THUS SPEED OF CONTROL UNIT IS FAST.