1. Study thiS program, then answer the questions that follow: MOV AL, 64H ADD AL,27H DAA a) What does the accumulator contain immediately after the ADD instruction is executed ? What do the CY and AC flags contain? b) What does the accumulator contain after the DAA instruction is executed? What do the CY and AC flags contain?

Electric Motor Control
10th Edition
ISBN:9781133702818
Author:Herman
Publisher:Herman
Chapter22: Sequence Control
Section: Chapter Questions
Problem 6SQ: Draw a symbol for a solid-state logic element AND.
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Discussion:
1. Study this program, then answer the questions that follow:
MOV AL, 64Η
ADD AL,27H
DAA
a) What does the accumulator contain immediately after the ADD instruction is executed ?
What do the CY and AC flags contain?
b) What does the accumulator contain after the DAA instruction is executed? What do the
CY and AC flags contain?
2. Write a subroutine that will perform the function of the DAA instruction.
Transcribed Image Text:Discussion: 1. Study this program, then answer the questions that follow: MOV AL, 64Η ADD AL,27H DAA a) What does the accumulator contain immediately after the ADD instruction is executed ? What do the CY and AC flags contain? b) What does the accumulator contain after the DAA instruction is executed? What do the CY and AC flags contain? 2. Write a subroutine that will perform the function of the DAA instruction.
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