Xerox 4213 manual Byte count, Load address, Table entries

XES COMMAND LANGUAGE MODE

3. Byte count

This is one half the number of bytes (characters) in the remainder of the record, including the load address and the two ªFºs at the end. Each character in the record represents a four bit hexadecimal value and is always two bytes long.

4. Load address

This is the first hex location to be altered, multiplied by two, and is always four characters long.

For example, if the first location to be altered is 40H, the value to be entered as the load address is ª0080º. Two leading 0s have been added to produce four characters.

Entry 1 of the table data applies to this location. The printer assumes that all subsequent entries apply to successive hex values. For example, if the load address is 5BH, entry 1 will be applied to hex location 5BH, entry 2 will be applied to hex location 5CH, entry 3 will be applied to hex location 5DH, and so on.

Table D-8 lists hexadecimal values multiplied by two.

5. Table entries

The table data consists of a series of four character entries, one for each location from the load address to the last location to be altered. Intervening locations which do not need to be altered must be included. This is done simply by reassigning their normal hex value; for example, by assigning 7BH to hex location 7BH.

The four characters include the following information:

·The first two characters are the new hex value being assigned to the current location.

For example, suppose that the Japanese yen sign (A5H) is to be printed from an ISO font. Suppose also that the backslash (5CH) is not needed. A downloaded table can be used to assign the hex value A5H to location 5CH. If 5CH were the first table location, A5H would be the first two bytes of entry 1 in the table data.

XEROX 4213 LASER PRINTER PROGRAMMER REFERENCE 2-111