Consider the 16-bit carry bypass adder and 16-bit carry select adder. Both adder schemes are divided into four groups, where the 1st group has M1 bits, 2nd group has M2 bits, 3rd group has M3 bits, and 4th group has M4 bits, and (M1+M2+M3+M4) = 16. Assume that the setup delay (including the 4-input AND for carry bypass adder), 1-bit carry delay, multiplexer delay, sum delay are all 100 ps. (a) When M1=4, M2=4, M3=4, M4=4, calculate the delay of 16-bit carry-bypass adder and carry select adder. Clearly show your

Write a new lc-3 trap subroutine (i. e. a subroutine that will be invoked via the trap instruction) that will receive a numeric digit entered at the keyboard (i. e. an ascii character), echo it to the screen, and return in r0 the corresponding numeric value: so if the user types the digit '7', the character '7' will appear on the screen, but the value returned in r0 will be b0000 0000 0000 0111 (#7) you may not use any trap calls in your code - you must implement the "polling" code that interrogates the keyboard status and data registers. ; getnum_tsr ; a subroutine for obtaining a numeric value ; given ascii numeric digit input to keyboard. ; the numeric digit is echoed to the console (e. g. '7' = b0000 0000 0011 0111), ; but the value returned in r0 is the actual numeric value ; corresponding to the digit (e. g. b0000 0000 0000 0111 =