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CHAPTER1 OVERVIEW
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1.3 Structured Programming
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1.3 Structured Programming
The programs to be executed in the CPU module can be structured in the following two ways.
In one program
By dividing into multiple files
(1) Structuring in one program
Structured programming is available by creating one program as a collection of three program sections: main
routine program ( Section 2.2.1), subroutine program ( Section 2.2.2), and interrupt program
( Section 2.2.3).
Figure 1.4 Structuring in one program
P8
RET
RET
Y10
Y11
Y12
P1
END
FEND
CALL P1
IRET
I0
Main routine
program
Subroutine
program 1
Subroutine
program 2
Interrupt program