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- /*
-
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-
- Athena Digital Video BIOS (TM) Version 3.01
- Copyright (C) Athena Digital, 1986, 1987. All rights reserved.
- 2351 College Station Road, Suite 567, Athens, Ga 30605
- 404/354-4522
-
-
- This feature file dated June 29,1987
-
-
- *\
- /*
-
-
- *** Trademarks / Owners ***
-
- Athena Digital Video BIOS / Athena Digital
- Microsoft, MS-DOS, CodeView / Microsoft Corporation
- IBM, BASICA / International Business Machines Corporation
- Hercules, RamFont, FontMan, InColor / Hercules Computer Technology
-
-
-
-
- *\
- /*
- *** What is Athena Digital Video BIOS ? ***
-
- Athena BIOS is a new software system designed to replace the
- original video BASIC INPUT / OUTPUT SYSTEM (BIOS) in IBM PC com-
- patible computers. There are many reasons for doing this. IBM's
- original video BIOS was an excellent program in it's day. New
- video adapters and better versions of the old ones have strained
- the capabilities of the original BIOS, but it is still the only
- one available - and all of your application programs use it.
- Athena Digital created this new BIOS to help computer users and
- programmers get the most from today's AND tomorrow's video hard-
- ware.
- *\
- /*
-
- *** Athena BIOS Features ***
-
- This demo is an introduction to Athena's Video BIOS device driver
- for MS-DOS computers and MS-DOS application software. Two of
- it's more popular features will be discussed. The first is it's
- ability to help Color Graphics Adapter (CGA) programs to run
- without modification on Monochrome Graphics Adapters (MGA) such
- as the Hercules. The second is it's ability to simplify Hercules
- programming for application developers.
-
-
- *\
- /*
-
-
- *** What is a Device Driver ? ***
-
- Device drivers are control programs which automatically load and
- become active when your computer starts up. In this case, Athena
- BIOS automatically takes over from your existing video BIOS to
- give you faster screen display, allow you to run Color Graphics
- programs on a Hercules Graphics Card, and numerous other features
- high-lighted below.
-
-
- *\
- /*
- *** Accelerate Application Programs ***
-
- If you don't program - you still need the BIOS. The device driver
- BIOS gives you faster screen output and eliminates flicker while
- scrolling on modern CGAs. On Monochrome text or Monochrome graph-
- ics adapters, it can give you a display output speed increase
- from 30 to 50%.
-
- Consider the cost of a Color Graphics Adapter and display mon-
- itor. If functionality and quality text are your object, then you
- may not NEED a color monitor and graphics card.
-
- *\
- /*
- *** How Effective Is The Emulation Capability ? ***
-
- The list of compatible software includes programs like BASICA,
- CodeView, QuickBASIC's editor and about 95% of all others. It
- will even run CGA text applications which ordinarily hang the
- computer unless a CGA is present AND programs which use Microsoft
- mouse or software compatibles.
-
- The few which are least likely to work are certain games, so if
- your use is serious, chances are better than good that all of
- your CGA applications will run on your Hercules with Athena BIOS.
-
- *\
- /*
-
- *** Will It Work on Any Hercules Card ? ***
-
- All (8) CGA 40 column or (4) 80 column text pages are available
- on ANY Hercules Graphics Adapter including the new Hercules Plus
- or InColor in 4K RamFont mode (with your favorite font loaded).
-
- The 40 column CGA graphics mode even appears in shades of amber
- (or green or white depending on your monitor).
-
-
-
- *\
- /*
- *** Will it work with QuickBASIC? ***
-
- This short demo was written entirely in QuickBASIC Version 2.00
- (except the logo in true Hercules mode) and linked with Athena
- BIOS.
-
- The BIOS is compatible with BCOM or BRUN. ALL of QuickBASIC's
- standard text and graphics functions work with Athena BIOS,
- whether the display used is the Hercules adapter (in emulation
- mode) the CGA or the EGA.
-
-
- *\
- /*
-
- *** What About The Hercules Graphics Modes ? ***
-
- The BIOS allows BASIC to support MGAs with all of the BASIC
- graphics functions at the CGA screen resolution. It also simpli-
- fies support of Hercules high resolution graphics by enabling all
- of BASIC's standard text functions to work properly with the
- Hercules high resolution modes. Pixel-oriented graphics are sup-
- ported through Athena BIOS read/write pixel function. A technical
- reference manual is available for those who would like to take
- advantage of Athena BIOS' extended capabilities.
-
- *\
- /*
-
- Athena provides BIOS support for the high resolution Hercules 350
- vertical by 720 horizontal modes, and a new 350 vertical by 360
- mode with three intensities and 4 logical pixel colors.
-
- Athena provides ALL of the original BIOS call support for these
- new modes including character generation, scrolling, pixel
- write/read, BIOS string functions and Microsoft mouse support.
-
- New functions support adapter switching, context saves, and mul-
- tiple simultaneous character fonts in Hercules Graphics modes.
-
- *\
- /*
- *** What Else ? ***
-
- o Supports a new 8 page 80 column text mode for all Hercules
- cards including mouse support for all 8 pages.
-
- o Provides extended equipment, system capability information
- for applications. It even detects whether or not a CGA sup-
- ports Hercules page switching and what model Hercules is
- installed.
-
- o Supports faster video operation in ALL modes than the origi-
- nal BIOS.
- *\
- /*
-
- o Easily upgraded as features are added by simply changing
- drivers. This means it won't become obsolete as ROMs will.
-
- o Installs as a device driver for MS-DOS version 2.10 or later
-
- o Adds PC-AT BIOS print string functions to the PC or compati-
- bles.
-
- o Supports flicker-free scrolling on modern Color Graphics
- Adapters.
-
- *\
- /*
-
-
- o Offers CGA software programmers the ultimately simple
- upgrade to support the MGA with their existing code.
-
- o Fully compatible in all standard modes and in CGA emulation
- modes with Hercules' new 4K RamFont cards.
-
- o Supports multiple simultaneous text fonts in Hercules graph-
- ics modes (such as italics, bold, reverse, underline, etc.)
- by allowing external font tables.
-
- *\
- /*
-
-
- *** What Comes in the Package ? ***
-
- Device Drivers come on a 5 1/4" IBM format diskette, with the
- Users Guide and a "Buss Terminator".
-
- Software will be supplied on 3.5" diskette if requested.
-
-
-
-
- *\
- /*
- *** So What's a Buss Terminator ? ***
-
- The one inch tall "Buss Terminator" is a proprietary device which
- is largely responsible for Athena's emulation success rate. It is
- designed to fit a PC slot ordinarily made useless by accessory
- cabling or piggy-back cards and is only required if you will use
- emulation modes with applications that are un-aware of Athena
- BIOS.
- Applications which are linked with Athena BIOS or applications
- which communicate with an Athena Digital device driver are
- expected to play by the rules .. so the Buss Terminator is not
- required for them to run in emulation mode or otherwise.
- *\
- /*
-
- *** How About Installation ? ***
-
- Software installation is a matter of copying the Athena device
- driver to your boot disk, and inserting a one line command in
- your MS-DOS "config.sys" file:
-
- DEVICE=ATHENA.SYS
-
- The Buss Terminator installation is less difficult than a printer
- card, since it requires no screws or cables.
-
- *\
- /*
- *** What Computers Are Supported ? ***
-
- Athena Video BIOS is compatible with a variety of MS-DOS compu-
- ters, including the PC, PC-XT, PC-AT, Leading Edge, and other
- hardware compatibles as long as it has PC or PC-AT compatible
- buss slots (if the user-activated emulation mode is required).
- Microsoft mouse and software identicals are also supported.
- Athena BIOS supports a variety of display adapters including the
- Color Graphics Adapter, Monochrome Text Adapter, Monochromes
- Graphics Adapter, Enhanced Graphics Adapter, Hercules InColor
- Card, and Hercules Graphics Card Plus.
-
- *\
- /*
- *** What if I Have More Than One Adapter ? ***
-
- Athena BIOS will correctly detect and handle adapter switching
- for the following multi-adapter combinations:
-
- Hercules Graphics
- Hercules InColor EGA Color*
- Hercules Plus WITH CGA
- Mono Text Only Hercules Color
- EGA Monochrome*
-
- * EGA Color and EGA monochrome cannot be used together.
- *\
- /*
- *** Controlling Athena BIOS After Installation ***
-
- With the device driver, you are provided a utility which allows
- you keyboard control over Athena's variety of modes. With this
- utility, you can:
-
- o Select active adapters.
- o Disable or reset the BIOS so you can change hardware modes
- on multi-mode adapters.
- o Obtain installed equipment and status reports.
- o Freely enter and exit emulation mode.
-
- *\
- /*
- *** What Does It Cost ? ***
-
- The Athena BIOS device driver with buss terminator is $40.00
- direct from Athena Digital. Of course, prices are subject to
- change.
-
- Dealers, OEMS, and those desiring site licenses are welcome and
- encouraged to contact Athena Digital about sub-license, quantity
- discounts, special programming requirements, or special hardware
- support.
-
-
- *\
- /*
-
- *** Why So Much About Hercules ? ***
-
- The Hercules video standard was the third available for the PC
- and the first which offered truly high graphics resolution. It
- was also the first to support graphics on the TTL monochrome
- display.
-
- Today, Hercules' standards are universally accepted as the opti-
- mum display adapters for TTL monochrome PC systems and Hercules'
- development continues.
-
- *\
- /*
-
- Until now, it was necessary for users to choose between quality
- text and graphics at an attractive cost (MGA) or poor text with
- widely supported graphics at a moderate cost (CGA) or good text
- and good color graphics at high cost (EGA).
-
- With Athena BIOS, the choice is now a bit easier to make. You can
- have quality text, high resolution graphics, and still run the
- majority of graphics software written for the CGA standard with
- surprising effectiveness.
-
-
- *\
- /*
-
- Athena Digital supports color too. The display resolution and
- quality of the Hercules Graphics Card is now matched in color by
- Hercules' InColor Card. It is also approached by EGA and chal-
- lenged by VGA. Each of these standards provides demanding users
- with superb color graphics resolution where it is desired or
- required.
-
- The BIOS is compatible with InColor and EGA. It provides InColor
- owners with CGA software support just as it supports the other
- Hercules Cards. It is also compatible with the EGA modes of VGA.
-
- *\
- /*
-
-
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-
- Thanks for reading .. you will return to the menu now.
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- *\
- /*