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6. Other functions

6.1 Development support function

File system provides a function to access memory files and DOS files as a support function for debugging. With this function, you can access files that have not yet been created on the CD-ROM, or files that have changed since the CD-ROM was created, in the same way as files on the CD-ROM. However, this feature cannot be used with CDBFS.
仕 組 み The mechanism for making debug files accessible in the same way as files on a CD-ROM is directory information reading processing.
When reading directory information from CD-ROM, directory information is also read from the debug file. The debug file information is processed by replacing or adding to the CD-ROM file information.
After reading directory information from a directory on the CD-ROM, the following processing is performed.

(1) Replace

For the debug file with the same name as the CD-ROM file, directory information is set in the directory information storage area instead of the corresponding CD-ROM file.

(2) Add

Debug files that have not been replaced are added to the directory information storage area.

∙ Memory files have higher priority than DOS files when replacing debug files.
The following is an example of how these processes are performed. Figure 6.1 shows the file structure.

Figure 6.1 File configuration example

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