Question

OF OF OP SF SF SF ZF 42. If it is legal, give the proper .data, .bss, or EQUate directive to define each of the following a) A word variable named AWORD initialized to 1ABCh b) A constant CR equal to ODh c) An uninitialized doubleword named DoubleTrouble

Answer 1

Answer is as follows :

a) A word variable named AWORD initialized to 1ABC h (hexadecimal value)

In this data is initialized to variable, so we use .data directive here as follows :

AWORD.data 1ABC h

b) A constant CR equal to 0D h( hexadecimal value)

Here equ directive is used for equal. and syntax for this is Symbol.EQU value

So it is

CR.EQU 0Dh

c) An uninitialized doubleword named DoubleTrouble

For uninitialized variable we use .bss directive as follows :

doubleword.bss DoubleTrouble

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