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Accessing Files Programmer's Guide: HP 3000 MPE/iX Computer SystemsChapter 11 Accessing a File Using Mapped Access | 
 
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 Table of Contents A major enhancement to the MPE/iX file system is mapped file access, a method that allows you to access a file directly through memory load and store instructions. Mapped file access is available through two HPFOPEN intrinsic optional parameters: 
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