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Arithmetic Operations Multiple Questions and Answers.
| 16. | What are constants in VHDL code? | ||
| A. | Fixed numbers represented by a name | ||
| B. | Fixed variables used in functions | ||
| C. | Fixed number types | ||
| D. | Constants do not exist in VHDL code. | ||
| 17. | Fast-look-ahead carry circuits found in most 4-bit full-adder circuits: | ||
| A. | determine sign and magnitude | ||
| B. | reduce propagation delay | ||
| C. | add a 1 to complemented inputs | ||
| D. | increase ripple delay | ||
| 18. | Adding in binary, a decimal 26 + 27 will produce a sum of: | ||
| A. | 111010 | ||
| B. | 110110 | ||
| C. | 110101 | ||
| D. | 101011 | ||
| 19. | How many basic binary subtraction operations are possible? | ||
| A. | 4 | ||
| B. | 3 | ||
| C. | 2 | ||
| D. | 1 | ||
| 20. | If [A] = 1011 1010, [B] = 0011 0110, and [C] = [A] • [B], what is [C 4..2] in decimal? | ||
| A. | 1 | ||
| B. | 2 | ||
| C. | 3 | ||
| D. | 4 | ||
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