Many more of the control codes have been given meanings quite different from their original ones.

When this bit was instead made available for representing character data, another 128 characters and control codes could be represented.

"But you gave him hints, even if he doesn't know your control code."

If the control code is in upper case, it affects the whole subtitle line.

When the top bit was made available for representing character data, a total of 256 characters and control codes could be represented.

Unfortunately it's not usually possible to change the control codes used by the various products but there are a couple of workarounds.

They may be able to pick up our control codes.

The trouble is, what if they somehow have the control codes?

Strictly speaking, there are 96 characters and 32 control codes in this range.

The first 6 bits of the first word are a control code.