Compuprint 9058 Programmer Manual Uživatelský manuál stáhnout pdf (Strana 51)

EPSON/IBM Mode

A78408098-003

1 Gothic 2 Courier

3 Prestige 4 Script

5 OCR-B 6 OCR-A

7 Presentor 11 Boldace

182 DLL

Before copying ROM characters to RAM, cancel italics with the ESC 5

command. After copying you can italicize characters by sending the

ESC 4 command.

ESC =

Defines downloaded characters. (IBM)

ASCII Code ESC =

m id p t

Hexadecimal Value 1B 3D

m id p t

Decimal Value 27 61

m id p t

This sequence allows you to design and then down-line load special

characters not present in the character set in. Whenever you would

like to start the DLL setting procedure, proceed as follows:

•

Copy the character generator in ROM into RAM

•

Select the DLL generator

There are 256 entries of 9 bytes that compose the look up table of a

character generator. One entry describes one character as follows:

Byte 1, 2 The absolute address of the character definition.

Byte 3 :

- Bit 7 1: indicates that the character is a graphic character

(connects at 6 lpi)

0: indicates that the character is an alphanumerical

character

- Bit 6 0: indicates a DLL character

1: indicates a resident character

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 142 143

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Compuprint 9058 Programmer Manual Uživatelský manuál Strana 51