Assembly Language: Consider the following data section. .data SDWORD -300 start

Question

Assembly Language: Consider the following data section.

.data

SDWORD -300

start BYTE 11010011b, 2 DUP(1), 0

array SWORD 0A1CDh, -3

COUNT1 = ($-array)

COUNT2 = ($-start)

a. What is the value of COUNT1? ________

b. What is the value of COUNT2? ________

c. The positive decimal value 300 is equal to 12C16. What is the 32-bit signed (two’s complement) representation of –300?

d. The entire sequence of data definitions at the beginning of this problem will be stored in memory as a sequence of 12 bytes. Write the byte values in hexadecimal, starting from the byte at the lowest memory address.

Explanation / Answer

Hi,

Below is the solution to your problem:

a.Value of COUNT1=2 DUP(1), 0;Define 2 bytes initialized to 1,Hence value of the variable COUNT1

b.Value of COUNT2= 0A1CDh

Invert the digits.

And add one.

Now converting it back to HEX 0xFFFFFD3

d.I am not sure of this.

Hope that helps...HAPPY ANSWERING!!!!!!!

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