NEED # 3, #5 , and #6

computer org and architecture class

step by step + answer PLEASE

ALL 3 Questions are seperate !

3, Assume 155 and 214 are signed 8-bit decimal integers stored in two's complement format. Calculate 155214. The result should be written in decimal. Show your work. (4 points) 5. Write down the binary representation of the decimal number 38.6125 assuming the IEEE 754 single precision format. (4 points) 6. IEEE 754-2008 contains a half precision that is only 16 bits wide. The leftmost bit is still the sign bit, the exponent is 5 bits wide and has a bias of 15 , and the mantissa is 10 bits long. A hidden 1 is assumed. Write down the bit pattern to represent 1.625102 assuming a version of this format. Calculate the sum of 2.625102 and 4.150390625101 by hand, assuming both numbers are stored in the 16-bit half precision described above. Assume 1 guard, 1 round bit, and 1 sticky bit, and round to the nearest even. Show all the steps. ( 10 points)