a$)$ A common method for classification of different computer system ISA is by their architectural complexity, A Complex Instruction Set Computer $($or CISC$)$ has many specialized instructions, some of which may only be rarely used in practical programs. However, it enables more performanee efficient implementation of even the rarely used instructions. On the other hand, a Reduced Instruction Set Computer $($or RISC$)$ simplifies the computer's control and processing unit by efficiently implementing only the instructions that are frequently used in programs. The less common operations are implemented as programmatic subroutines, which may not be written$/$programmed$/$coded in an efficient manner from performance perspective.

Given this method of ISA classification, how would you classify the ISA of an LC$-3$ computer? Does it resemble a CISC ISA or a RISC ISA? Provide sufficient justification for your answer.

b$)$ As part of the Staff Graded Assignment, students were asked to perform $2\text{'}$s complement