10

BOOLEAN VARIABLE MANIPULATION

CHAPTER OBJECTIVES

In the previous chapter, it was mentioned that apart from manipulating byte variables, MCS-51 can also manipulate bit variables. This chapter discusses the instructions dealing with Boolean variable manipulation. After completion of the chapter, the reader should be able to understand

  • Instructions related with Boolean data-load and data-move operations.
  • Program-branching instructions related to Boolean variables.
  • Logical operations possible with Boolean variables.
  • Application areas of some of these instructions.

10.1 | Introduction

All the instructions we have discussed so far are related to byte variables. However, MCS-51 also offers a bunch of instructions, which are capable of manipulating ...

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