Question: 19- Write an assembly program that swaps the upper half-word and the lower half-word of a register (without using reverse byte instructions) 20- Implement the

19- Write an assembly program that swaps the upper half-word and

19- Write an assembly program that swaps the upper half-word and the lower half-word of a register (without using reverse byte instructions) 20- Implement the BFC (bit field clear) instruction by using other assembly instructions. 21- Suppose Mask 0xee00oFeF and P xABCDABCD. What are the results of the following bitwise operations? (1) Q P & Mask; (2) Q P Mask; (3) Q- P ^ Mask; (4) Q-Mask; S) -P& Mask

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