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4. Write the sequence of instructions to save Registers A, Y, and X in the Stack

ID: 1936153 • Letter: 4

Question

4. Write the sequence of instructions to save Registers A, Y, and X in the Stack with the given order. Write the sequence of instructions to retrieve those values back. Saving A, Y, and X in Stack 1 __________ 2 __________ 3 __________ ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////Retrieving values back: 1 __________ 2 __________ 3 __________ ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////5. Show code for a nested loop to perform an action 1,000 times. ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

Explanation / Answer

MOV R2,3 a:MOV R1,256 PUSH A PUSH Y PUSH X POP A POP Y POP X djnz R1,a djnz R2,a

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