GOAL: Write a PEP/8 machine language simulator that simulates the PEP/8 computer and instruction set for only the following instructions: Instruction Specifier Instruction Addressing Modes Status Bits 0000 0000 Stop execution NA 0001 100r Bitwise invert r NA NZ 0001 110r Arithmetic shift left r NA NZVC 0001 111r Arithmetic shift right r NA NZC 0010 000r Rotate left r NA C 0010 001r Rotate right r NA C 0011 0aaa Decimal input trap d NZV 0011 1aaa Decimal output trap d, i 0100 1aaa Character input d 0101 0aaa Character output d, i 0111 raaa Add to r d, i NZVC 1000 raaa Subtract from r d, i NZVC 1001 raaa Bitwise AND to r d, i NZ 1010 raaa Bitwise OR to r d, i NZ 1100 raaa Load r from memory d, i NZ 1101 raaa Load byte from memory d, i NZ 1110 raaa Store r to memory d 1111 raaa Store byte r to memory d