The block shown is called a [1].  For the connections shown [2]

This RF can read from [1] register(s) in a single clock cycle It can write to [2] register(s) in a single clock cycle

To perform the operation: R3

Given the ripple carry adder shown below: What is the value of C2? [C2] If the A & B operands are considered to be 2’comp numbers did the operation overflow? [ov2s] If the A & B operands are considered to be unsigned numbers did the operation overflow [ovun]

There are limitations to what can be rendered in the drop downs in this quizzing tool.  So something like: 

 ABC F  000   001   010  [1]  011   100   101  [2]  110  [3]  111  [4] For the function given fill in the 4 output values with dropdowns

Given the two operands and the Carry in shown The value of C1 is [1] If you consider the numbers to be 2’s comp the operation being performed is:  [op1] + [op2] (HINT: for the B operand think about negation being “invert and add 1″…the Cin being 1 means we are adding 1)

The execution of an LEA instruction involves [num] memory accesses. The BRnzp instruction is taken [nzp] The BR instruction is taken [BR] 

Form an LC-3 instruction to move the contents of R4 to R2  (i.e. R2 ← R4) [op] [s1], [s2]  

Simulate the following code in your head.  Then answer the questions posed. This code performs [Alg] When finished R1 will contain [R1] The last 9-bits of the “BR LOOP” instruction are: [offset] Are there any clues that this code was intended to work with the lc3os? [lc3os]