Arithmetic operators in VHDL - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add two signals a and b.

VHDL

result <= a [1] b;

Drag options to blanks, or click blank then click option'

A*

B-

C+

D/

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-' instead of '+' will subtract instead of add.

Using '*' or '/' will multiply or divide, not add.

The plus sign (+) is used to add two signals in VHDL.

2fill in blank

medium

Complete the code to subtract signal b from a.

VHDL

result <= a [1] b;

Drag options to blanks, or click blank then click option'

A+

B/

C*

D-

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+' will add instead of subtract.

Using '*' or '/' will multiply or divide, not subtract.

The minus sign (-) subtracts one signal from another in VHDL.

3fill in blank

hard

Fix the error in the code to multiply a and b.

VHDL

result <= a [1] b;

Drag options to blanks, or click blank then click option'

A*

B-

C+

D/

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+' or '-' will add or subtract instead of multiply.

Using '/' will divide instead of multiply.

The asterisk (*) is the multiplication operator in VHDL.

4fill in blank

hard

Fill both blanks to divide a by b and assign to result.

VHDL

result <= a [1] b [2] 2;

Drag options to blanks, or click blank then click option'

A/

B*

C+

D-

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+' or '-' instead of '*' for multiplication.

Using '*' or '+' instead of '/' for division.

Use '/' to divide and '*' to multiply in VHDL arithmetic expressions.

5fill in blank

hard

Fill all three blanks to compute (a + b) * (c - d) and assign to result.

VHDL

result <= (a [1] b) [2] (c [3] d);

Drag options to blanks, or click blank then click option'

A+

B-

C*

D/

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up '+' and '-' operators.

Using '/' instead of '*' for multiplication.

Use '+' to add, '-' to subtract, and '*' to multiply in VHDL.