The principal purpose of this chapter is to draw together all the preceding ideas in the past nine chapters into a series of example programs. As a bonus, these programs will be found to be particularly useful to you in your work with BASIC and with assembly language. In this sense they may be called utility programs. This is not to imply that programs in the rest of the book are not useful (for example listing 8.6 is certainly of use if you have a printer). But the earlier programs were chosen to make specific pedagogical points: the programs here try to draw together all the points already made. If you purchase the cassette available with this book you will find some other utility programs. It contains an assembly program to find and list the lines containing any section of code in a BASIC program (FIND-CODE) and another to replace any section of code by any other section in a BASIC program (REPLACE).
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- Some Utility Programs
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