COPYMOD Module Structure

The copy modification data following the header information is a series of segments. Each segment is of variable length and is composed of the components shown in Figure 1.

Figure 1. Copy Modification Module Structure

A, B, C, D, E, and F are each 1-byte fields.

If the module contains more than one segment, the starting copy number must be equal to or greater than the starting copy number in the previous segment.
Any string of the same character within the text may be compressed into 3 bytes. The first such byte is X'FF', the second byte is the number of compressed characters, and the third byte is the data code for the character.
The size of the module is limited to 8192 bytes of data and 8 bytes of header information.