Remember you can refer to your LC-3 Programmer’s Reference Sheet When bit 5 of a(n) [type] instruction is 1 the 2nd operand is referred to as [addrmd] Bit 5 of the instruction directly controls what signal in the LC-3 datapath [sig]  

Put the phases of operation in order: First : [1] Second: [2] Third: [3] Fourth: [4] Fifth: [5] Last: [6]    

The location of the [1] in a fixed point binary number [2] into the number itself.

Consider the following 2’s complement numbers:  E16, 368, FF16, 11102 How many of these numbers represent the same value?

The data word size of a memory dictates:

The state diagram below is for a state machine that detects what sequence? [seq] What is the minimum number of flops necessary to implement this machine? [minFlops]  

You have been asked to create a FSM for a ticket machine for a bus with the following specifications: The cost of a bus ticket is 35¢. The machine only accepts quarters (25¢) and/or dimes (10¢), but only one coin at a time. Whenever at least 35¢ has been deposited, the machine will provide a ticket, the balance returns to 0¢, and then it is the next customer’s turn. The machine does not provide change. If someone pays more than the required 35¢, the next person does not get the extra as credit towards the ticket – the bus company gets to keep the extra money. Check all of the states you would use:

Given you have the number 101, but don’t know its base or format (unsigned, 2’s comp, sign mag, …): Its value would be greatest if its base was: [base] Its decimal value could be 257 : [as_hex] Its decimal value could be -1 : [smag] It could be in octal representation: [octal] Its decimal value cannot be 101 : [dec]

A multiplexer with 16 data input signals requires a total of how many input signals?

Which of the following are true for an ALU?