Question & Answer: Will the following code jump to the label myLabel?…..

Question 5

Will the following code jump to the label myLabel?

mov( iFive, AH );
cmp( AH, iSixteen );
jna myLabel;

if iFive holds the value 5 and iSixteen holds the value 16?

No, because jna is for unsigned values

No, because jnb should have been used, not jna

No, because AH cannot hold signed values like 5 or 16

Yes

Question 6

The NEG instruction operates on

only unsigned integer data values

all signed data values, both integers and floating point values

only signed integer data values

all unsigned data values, both integer and floating-point values

Question 7

How many binary digits are used when representing a nibble in binary form?

1

2

4

3

Question 8

Patti the Programmer decides to create a function with three int8 parameters, sending all three by-reference. Will she need to pad her functions activation record?

The answer will depend on the value of the passed parameters

The answer will depend on how many registers get preserved on the stack

Yes

No

Question 9

How many bits of stack memory are used when passing an int16 variable by-value to a function?

16

64

32

8

Question 10

How many bits of stack memory are used when passing an int32 variable by-reference to a function?

64

32

16

8

Question 11

Consider the following quantities:

A = 268

B = 2616

C = 2610 and

D = 1011102,

D is the biggest

C is the biggest

B is the biggest

A is the biggest

Question 12

All of the following data values are examples of signed datatypes in HLA EXCEPT

uns8

int16

int8

int32

Question 13

The numerical value 6428 can be stored in an int8 variable.

True

False

Question 14

On the 80×86 CPU floating-point hardware, FPU registers are 32-bits in size.

True

False

Question 15

When HLA Programmers use the MALLOC and FREE instructions, they are manipulating the run-time heap.

True

False

Question 16

Unlike all of the other HLA commands, the MALLOC and FREE instructions are not always guaranteed to

True

False

Question 17

Whenever HLA programmers use the MOV instruction, they must ensure that the source and destination variables or registers have different sizes.

True

False

Question 18

On the 80×86 CPU, pointer variables are 64-bit values.

True

False

Question 19

Suppose that EAX has the base address of an array a. In HLA syntax, how can you perform the following C statement:

value = a[ 6 ];

mov( EAX + 6, value );

mov( value, [ EAX + 6 ] );

mov( [ EAX ] + 6, value );

mov( [ EAX + 6 ], value );

mov( value, EAX + 6 );

mov( value, [ EAX ] + 6 );

Question 20

Paul the Programmer decides to set the value of the register named DL. In the worst case, how many other registers besides DL will also have their values changed by this operation?

0

2

1

None of the choices here are correct

3

Question 21

When HLA Programmers try to declare reference parameters as function parameters, which of the following function signatures should be used?

procedure foobar( k : int8 ); @nodisplay; @noframe;

procedure foobar( var k : int8 ); @nodisplay; @noframe;

Not enough information has been supplied to answer this question

procedure foobar( k : var int8 ); @nodisplay; @noframe;

Question 22

Patti the Programmer loads the EBX register with a pointer value as shown below:

static:
iValue : int16 := 0;
dMallocAddress : dword;
begin progExample;

mov( &iValue, EBX );

malloc( @size( int8 ) );
mov( EAX, dMallocAddress );
mov( dMallocAddress, EBX );

// Patti uses [EBX]

end progExample;

After she has finished using EBX, must Patti the Programmer FREE EBX?<

Yes

The answer will depend on the value of iValue

None of the choices listed here are correct

No