Question

Statement I : The count- up overflow (OV) bit is 1 when the up- counter increments above the maximum positive value.

Statement II : The count- down underflow (UN) bit is 1 when the counter decrements below the minimum negative value.

• A. Both Statement I and Statement II are true but Statement II is NOT the correct explanation of Statement I
• B. Statement I is false but Statement II is true
• C. Both Statement I and Statement II are true and Statement II is the correct explanation of Statement I
  
• D. Statement I is true but Statement II is false

Answer 1

The correct option is D Statement I is true but Statement II is false

Overflow flg is with respect to signed opertions. if result crosses maximum positive value to negative value. Under flow is generally considered with respect to real numbers, that is the values which can't be represented between -1 and + 1.