Super Simple CPU

• 16 memory locations
• 16 bits at each memory location
• Registers
  • PC
  • ACC
  • IR
• Instruction is 16 bits
  • 4 bit opcode
  • 12 bit operand
  • Instructions
    • 1111 Stop
    • 0001 Add ADDRESS, add memory at operand to the acc
    • 0010 SUB ADDRESS, subtract the memory at operand from the acc
    • 0011 LOD ADDRESS, load the value at the address into the acc
    • 0100 LDI IMM, load IMM into the acc
    • 0101 STO ADDRESS, store the accumulator to the address
    • 0110 INP , input to the accumulator
    • 0111 OUT, output the accumulator
    • 1000 JMP ADDRESS jump to the new address
    • 1001 JNG ADDRESS, jump if the accumulator is negative to the address
    • 1010 JZR ADDRESS, jump if the accumulator is zero to the address
• Write a program to find the perimeter of a rectangle given the length of the sides
• Write a program that reads in two numbers and prints out the largest