please help

S

seice.kao

A magnitude comparator(which compares two unsigned binary words,A
and B, and result in two outputs, A>B A<B ) is required

1.(a)Design at the gate level a single bit slice for this comparator
with the
comparison signals flowing from LSB to MSB

(b)Design at the gate level a single bit slice for this comparator
with the
comparison signals flowing from MSB to LSB

(c)How could these comparators be used if A and B were signed
two's-complement binary numbers?(Note No internal modification of the
comparator is required)


2.(a)Write a structural VHDL description of your design question 1.(a)
and iterate this using GENERATE statements to form 8-bit comparator


(b)Provide a RTL-LEVEL VHDL description of a magnitude comparator
(which compares two 8-bit std_logic_vectors representing unsigned
binary words A and B and results in two std_logic outputs A_gt_B and
A_lt_B)

(c)How would you modify the VHDL code of Question 2(b)if A and B
were representing two's complement signed numbers

(d) If possible synthesize the VHDL code produved for question 2(a)
and
2(b) using a CMOS process as the target technology. Compare the
synthesized circuits and discuss the results.( If you do not have
access to
a synthesiser discuss what you night expect from the synthesis of
these
two descriptions).

3.Design a schematic diagram illustrating how an 8-bit subtractor
(delivering an 8-bit result) can be implemented using carry lookahead
techniques
 
M

Mike Treseler

A magnitude comparator(which compares two unsigned binary words,A
and B, and result in two outputs, A>B A<B ) is required

If you can't work any of those problems
in less time than doing all that typing,
you are in the wrong class.
From the questions, it doesn't sound like
a very good class anyway.
Drop it before you see worse on the mid-term exam.

Nice typing, by the way.

-- Mike Treseler
 
P

Paul Floyd

If you can't work any of those problems
in less time than doing all that typing,
you are in the wrong class.
From the questions, it doesn't sound like
a very good class anyway.
Drop it before you see worse on the mid-term exam.

Nice typing, by the way.

Assuming that it wasn't copied/pasted from the professor's intranet web
page.

A bientot
Paul
 
P

Pascal Peyremorte

(e-mail address removed) a écrit :

The better help that I can tell :
--> Do it yourself

Pascal
 

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