Compuprint 10200 Programmer Manual Bedienungsanleitung PDF herunterladen (Seite 68)

Commands

Byte 4:

- Bit 7, 6 Graphic character description:

- 0: shading character

- 1: line drawing character

- 10: underscored character

- 11: not supported

All graphics characters are 30 dot high. An underscored character is defined as a

blank graphic (all zeros) and it is automatically generated by the printer. A

shading character repeats dots 1-6 of each column as dots 25 through 30

respectively. A line drawing character repeats dots 23 and 24 as the pairs 25

and 26, 27 and 28, 29 and 30.

- Bit 5 to 0 The number of dot columns of the character shape minus one. For example: the

character width of Draft generator is 10 dots and bit 5 to 0 must be set to 9.

- Bit 5 to 9 Compression mask description. It is used to optimize the memory occupation

and it is based on the concept that a dot column on its left is not stored. You can

calculate the compression mask of a character only after designing the entire

character. Every bit is associated with a dot column with the bit 7 of byte 5

associated with the leftmost column. The bit is set to {1}, if the column is equal

to the preceding one; otherwise, it is set to {0}. If the character is longer than 39

dot columns the remaining dot columns must be stored without compression.

The bit 40 (bit 0 of byte 9) must be 0. If no compression is present in the

character, byte 5 to 9 is composed by all zeros.

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Compuprint 10200 Programmer Manual Bedienungsanleitung Seite 68