1. Identify the opcode and operand for the instruction 117.
2. Explain what the instruction 117 does.
3. How would we write this using mnemonics (dont forget that instruction requires both an opcode and an operand)?

This is the instruction set for the Little Man Computer by Dr. Stuart Madnick (Little Man Computer.). The opcode is 1 decimal digit; the operand is 2 decimal digits.

* XX refers to a memory address.

Instruction	Mnemonic	Opcode	Operand	Description
Halt	HLT	0	00	Stop running
Add	ADD	1	XX *	Add the contents of the memory address to the Accumulator
Subtract	SUB	2	XX *	Subtract the contents of the memory address from the Accumulator
Store	STA	3	XX *	Store the contents in the Accumulator in the memory address
Load	LDA	5	XX *	Load Accumulator with contents of memory address
Branch always	BRA	6	XX *	Set the PC to the value in the operand
Branch if zero	BRZ	7	XX *	Set the PC to the operand if the Accumulator is zero
Branch if zero or positive	BRP	8	XX *	Set the PC to the operand if the contents of the Accumulator is zero or positive
Input	INP	9	01	Retrieve user input and store in the Accumulator
Output	OUT	9	02	Output the contents of the Accumulator
Data storage	DAT			Label for a memory address; also can have a contents specified