The 8086/8088 is a CISC based architecture.
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CISC stands for Complex Instruction Set Computer. CISC chips are relatively slow per instruction,but use little instructions RISC stands for Reduced Instruction Set Computer. A fewer, simpler and faster instructions would be better, than the large, complex and slower CISC instructions. However, more instructions are needed to accomplish a task. It's easier to write powerful optimised compilers, since fewer instructions exist.
RISC stands for Reduced Instruction Set Computer CISC stands for Complex Instruction Set Computer RISC processors have a simpler set of machine instructions than CISC processors, but are intended to be more efficient and flexible in processing programs and data. Because of the reduced instruction set, RISC processors demand more effort on the part of the compiler (not the end user) and use longer machine language programs. RISC processors are more flexible in the sense that they are not as preconfigured in how they process programs and data. CISC microprocessors actually preceded RISC microprocessors and were derived from microcontroller based mini-computers such as the HP2100. See the Wikipedia entries on "Complex Instruction Set Computer" and "Reduced Instruction Set Computer" for more.
Answer It is both 8 bit processors in a 40 pin package but it is not pin compatible, it have almost the same functions but it is very difficult to compare the two because it is not the same family.
tell the meaning of risc and sisc microcontoller
C++ is high-level source code, while MIPS is low-level machine code for a reduced instruction set computer (RISC). To convert C++ source code to MIPS you need a C++ compiler specific to the MIPS architecture you're building against.