3.5 Defining the logical file structure

An overview of the logical file structure definition is shown below.

Directory DIR1                        
    Directory SUBDIR1                 
        File FILE1                    
            FileSource SRCFILE1    hierarchy
            EndFileSource          ↓
        EndFile                    1    2       3
        File FILE2                 \─┬─DIR1─┬─SUBDIR─┬─FILE1
            FileSource SRCFILE2      │      │        ├─FILE2
            EndFileSource            │      │        │
        EndFile                      │      │        │
        :                            :      :        :
        :                            :      :        :
    EndDirectory 
    :
    :
EndDirectory

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Title Command specifications

Command Begin directory definition

Keyword Directory

No 5.1

Format

Directory dirname

parameters

dirname: Directory name

function

Begins directory definition.

remarks

According to the ISO9660 standard, a directory hierarchy can be defined up to a maximum of 8 levels, counting the root directory as 1. However, for Sega Saturn, we recommend a level of 7 or less.

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Title Command specifications

Command End of directory definition

Keyword EndDirectory

No 5.2

Format

EndDirectory

parameters

none

function

Finish the directory definition.

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Title Command specifications

Command Start file definition

Keyword File

No 5.3

Format

File isofile [outfile]

parameters

isofile: File name on disk (ISO9660 standard)

outfile: File name to output file definition build results (optional)

function

Begins file definition.

remarks

• If the part after ";" is omitted in the file name format "filename.extension;version number", the version number ";1" is added by default.

• If ";0" is specified in the version number, ";0" will be omitted and the file name will be set without a version number.

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Title Command specifications

Command End of file definition

Keyword EndFile

No 5.4

Format

EndFile

parameters

none

function

Finish the file definition.

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Title Command specifications

Command Starting a file source definition

Keyword FileSource

No 5.5

Format

FileSource srcfile

parameters

srcfile: File name used as input for file definition

function

Specifies the file that is the input for the file definition.

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Title Command specifications

Command End of file source definition

Keyword EndFileSource

No 5.6

Format

EndFileSource

parameters

none

function

Finish the file source definition.