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10. Explain the instruction statement SUB_A: MOV CL, OFFH10 14. What does the st

ID: 2266018 • Letter: 1

Question

10. Explain the instruction statement SUB_A: MOV CL, OFFH10

14. What does the statement SEG_ADDR DW 1234H do when processed by the assembler?

16. Write a data directive statement to define INIT_COUNT as word size and assign it the
word size and assign it the value F00H

20. Show how the segment-control directives are used to define a segment called DATA_SEG that is aligned on a word-address boundary, overlaps name, and is a data segment with same name ,and is data segment.

10. Explain the instruction statement SUB_A: MOV CL, OFFH 14. What does the statement SEG ADDR DW 1234H do when processed by the assembler? 16. Write a data directive statement to define INIT_COUNT as word size and assign it the value F000H 20. Show how the segment-control directives are used to define a segment called DATA SEG that is aligned on a word-address boundary, overlaps other segments with same name, and is a data segment.

Explanation / Answer

SUB A- subtract the contents of the accumulator A from the accumulator and the result will be stored in accumulator A.

After execution of the sub A instruction, the result stored in A is 0.

MOV CL, 0FFH is a one byte size instruction. The hexa decimal number 0FFH is moved to register CX.

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