The binary number equivalent of decimal number 221 is _________. (use 8 bits)

a) 13–9 b) –13 –13 Perform the above decimal arithmetic problems by first converting the numbers to binary, 2’s complement form (using a 7 bit word in every case). Then perform the 2’s compliment addition. Show the result in binary indicating as in the problem above whether each result is positive or negative or overflowed (by writing “positive”, “negative” or “overflow” next to the binary answer) and then follow with the decimal value of the result if there was no overflow.

20)The memory size of a double word (DWord or MD) is ________. A)Eight bytes B)Sixteen bits C)Eight bits D)Four bytes

During the execution of an OUT instruction, the IO/M* signal will ________.   A) Go high. B) Go low. C) Not be used. D) Tristate

During the execution of an IN instruction, the WR* signal will ________.   A) Stay high. B) Go low. C) Tristate. D) Multiplex

Book used is Digital Logic with Verilog Design by Brown & Vranesic. Study the counting circuit diagram below and answer the following questions: a.  Based on the circuit drawing, is the Clock Positive-Edge Triggered or Negative-Edge Triggered? b.  How was this determination made? c.  What are the minimum and maximum valkues of the circuit? Explain. d.  There are 3 grayed out boxes we refer to this symbolic use as _____________.  Why are these used in circuit design?