Ziatech Corporation zPM11D-2, Руководство по оборудованию

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DOS Drivers and Utilities
16
TSRFONT DRIVER
Some DOS application programs bypass the BIOS and draw characters directly to the screen.
Programs that directly draw characters using the 8x14 font from the BIOS appear to be writing
incorrect data to the screen. Typically this can occur in programs that offer a selection to use a
graphics 25 or 34 line display mode. Other programs may appear to cut off the descenders of
characters like "y" and "j".
Running the TSRFONT driver makes a full 8x14 size character set available to these programs, and
should correct the type of display errors discussed above.
To run the TSRFONT driver, type:
TSRFONT [Enter]
If you want to run TSRFONT automatically when you turn on your computer, add it to your
AUTOEXEC.BAT file.
AUTODESK - ADI 4.2
The ADI 4.2 driver provided with your zPM11 is the TurboDLDClassic™ display list driver from
Panacea. It has two purposes:
1. To speed up AutoCAD® REDRAWs, PANs, and ZOOMs.
2. To provide a more productive, user-friendly interface to AutoCAD (via the features described later
in this manual).
The driver is memory resident and inserts itself between AutoCAD and the graphics board. It has no
other effect on AutoCAD's operation besides speeding the program up; it runs with AutoShade 2™
with RenderMan®, and with 3D Studio to provide enhanced rendering support, but does not affect the
speed of these programs since they do not support Display Lists.
Installing TurboDLDClassic does not change any of the AutoCAD program files or alter any of the
drawing files stored on disk. TurboDLDClassic is designed to make using AutoCAD faster and more
productive.
The driver does three things to speed operation:
1. AutoCAD stores drawings in a hierarchical structure, intermixing simple elements with complex
ones. Every time the screen is updated, AutoCAD must decode this structure. However,
TurboDLDClassic translates the normal hierarchical structure into a Display List, a series of
vectors or polygon fills. When you pan or zoom, TurboDLDClassic uses the Display List, then
writes the resulting vectors to the video board hardware. Since the hierarchical structure does not
have to be decoded, drawing proceeds very quickly.
2. TurboDLDClassic also maintains a Drawing Cache. The Drawing Cache is a compressed list that
contains the current contents of a viewport. This pre-scaled portion of the Display List allows for
even faster pans and zooms and redraws.
3. TurboDLDClassic gives you numerous new user-interface features, such as the bird's eye view.
PANs and ZOOMs, aided by the Display List alone, run from two to twelve times faster than a non-
display list driver. The Drawing Cache further speeds things up to the point that REDRAWs can be up
to twenty-five times faster with TurboDLDClassic, compared to the graphics drivers shipped with
AutoCAD Features.
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