Question

For the following segment, what is SIZEOF myChecker (in decimal - ignore the .0000 from Canvas)

.data
myChecker BYTE 12h,
34h,
56h,
78h,
90h

Answer 1

The SIZEOF operator in assembly language determines the size of a variable or data type. In this case, myChecker variable is declared as a BYTE and has a size of 5 bytes.

Step-by-step explanation:

The SIZEOF operator is used in assembly language to determine the size, in bytes, of a variable or data type. In this case, the variable myChecker is declared as a BYTE, which typically represents a single byte of data. Since the myChecker variable is initialized with five values, each taking up one byte, the total size of the myChecker variable would be 5 bytes.

The question is asking to determine the size of a data segment defined with the label myChecker which contains an array of BYTE values. In this instance, the data segment myChecker is composed of five elements: 12h, 34h, 56h, 78h, and 90h. Each element is defined as a BYTE, which typically means it is 1 byte in size.

Therefore, to calculate the total size of myChecker, you would add up the size of each element. As there are five elements, the total SIZEOF myChecker would be 5 bytes. This is because each BYTE is equivalent to 1 byte, and therefore, five BYTEs would be a total of 5 bytes in decimal.