Question: Assembly Language Questions Write a single instruction using 16-bit operands that clears the low 8 bits of AX and does not change the high 8

Assembly Language Questions
Write a single instruction using 16-bit operands that clears the low 8 bits of AX and does not change the high 8 bits. Write a single instruction that converts an uppercase character in AL to lowercase, but does not change it if it is already lowercase. Write a single instruction that converts an ASCII digit in AL to its corresponding binary value, but if it is already a binary value (0 to 9), doesn't change it
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