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1994-09-18
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Supermac Technology, Inc. can be reached at 408-245-0646.
SuperMATCH Spectrum/24 VL
Release Notes
29 March 1994
These release notes contain the latest information about operating your
new Spectrum/24 for Microsoft Windows graphics display card and software.
-------- Release Notes ---------
1. Requirements
The Spectrum/24 drivers require a 80386 based CPU or better, and are
fully supported only in Windows 386 Enhanced mode.
2. Unnamed floppy prompt
If you attempt to install the Spectrum/24 software from your B: floppy,
you will see the prompt "Please insert the .", due to a bug in the
Windows SETUP program. Type "B:\" (or the name of the disk drive
holding the Spectrum/24 install disk), then click OK.
3. Third-party "shell" programs
If you are using a third-party shell program, such as the Norton Desktop
for Windows, and you experience problems while installing Spectrum/24
software, refer to the detailed section later in this file.
4. Applications with difficulties at 24 bits
- The Windows Program Manager will cause errors if you attempt to add
applications to a large group. See the detailed section later in
this file.
- The Microsoft Visual C++ setup program attempts to create a large group
and will issue two errors. See the detailed section later in this file.
- The "Aquatic Realm" and "Swan Lake" screen saver modules in After Dark
2.0 display strange bitmaps on devices with 24 bits of color depth.
Release 2.0a of After Dark solves this problem. Contact Berkeley
Systems Technical Support at 1-800-877-5535 for this upgrade.
==========================
-------- Details ---------
==========================
This file contains notes and information relating to the Windows driver
installation and usage which might not have made it into the release
documentation.
1. Restrictions
---------------
The Spectrum/24 drivers require an 80386 CPU or better, and are fully
supported only in Windows 3.1 386 Enhanced mode. Our experience has shown
that the driver operates correctly in Windows Standard mode only if an
extended memory manager (such as EMM386 or QEMM) is NOT used. Spectrum/24
will not operate at all in Windows 3.0 Real mode, and neither should you.
Ordinarily, this does not present a problem. Most 386 users use Enhanced
mode. However, when you perform an initial Windows installation, you must
select a VGA device as your initial graphics adapter when performing an
initial Windows installation. Then, once Windows has been installed, you
may use the Spectrum/24 Setup utility to change to the Spectrum/24 adapter.
2. Windows 3.0
--------------
SuperMac does not support operation of the Spectrum/24 VL card and driver
under Windows 3.0.
3. Installation Notes
---------------------
. Locating the frame buffer window
Spectrum/24 VL needs a 16MB window in your memory space to access its
frame buffer. The frame buffer can be located at any 16MB boundary in
the address space. The installation program will scan your address space
in an attempt to locate available locations. In our experience, the
install program rarely has trouble finding a free location; further,
almost any address higher than your physical memory will work.
Because of the nature of the VL bus, however, the installation program
is not always able to locate a free spot, and will occasionally diagnose
as "free" a location which has some other device. The following
suggestions will assist you in installing the device.
There are relatively few devices which live in the very high address
space. In general, you can choose almost any location above your
physical RAM. F000 0000 through FF00 0000 are good choices. If these
are unsuccessful, try in this order, 7F00 0000, then 3F00 0000, then
. Unnamed floppy prompt
Because of a bug in the Windows SETUP utility, if you are installing
Spectrum/24 from your B: floppy, you might be prompted with the
particularly unfriendly message "Please insert the ." If you receive
this prompt, type in "B:\", or the path to the floppy disk drive
holding the Spectrum/24 install disk if you are using a different
drive.
. Third-party "Shell" Programs
The Spectrum/24 installation and setup program communicates with the
Windows Program Manager to install the Spectrum/24 group and program
icons. Some third-party shells, such as Norton's Desktop for Windows,
do not fully comply with the Program Manager DDE interface, and will
produce a system error during the Spectrum/24 installation.
To work around this problem, either change the SHELL line in your
SYSTEM.INI file to read "SHELL=PROGMAN.EXE" and restart Windows, or
launch PROGMAN.EXE from your preferred shell. Then, restart the
Spectrum/24 installation.
4. Applications with difficulty at 24 bits per pixel
----------------------------------------------------
Some applications have difficulty operating on a true-color device with 24
bits per pixel. Here are some of the applications which are known to have
difficulty.
. Program Manager
All of the bitmaps for all of the icons within a Program Manager group
must fit within a single 64K segment. Because of this, at 24 bits per
pixel a single group can hold at most 19 icons. Attempting to add the
20th icon to a group results in a message box indicating "Insufficient
Memory to complete the operation." The only solution to this is to
split the group into two smaller groups.
. Microsoft Visual C++
As one of the last steps in its setup process, Microsoft Visual C++
creates a program group with 22 icons. Because of the Program Manager
limitation described above, the addition of last two icons will generate
errors. Microsoft is aware of this problem and will be issuing a
corrective update.
In the interim, one solution is to create another group by hand
called "Visual C++ Doc", then move (using drag-and-drop) all the
documentation related icons to this new group. Then you may add the two
icons which fail: MFCNOTES.HLP and MFCSAMP.HLP, both in the MSVC\HELP
. Berkeley Systems After Dark 2.0
The "Aquatic Realm" and "Swan Lake" screen saver modules in After Dark
2.0 display very strange bitmaps on devices with 24 bits of color
depth. Release 2.0a of After Dark solves this problem. Contact
Berkeley Systems Technical Support at 1-800-877-5535 for this upgrade.
5. Usage of I/O Ports
----------------------
In some cases, in can be useful to know exactly which I/O ports are required
by your peripheral devices. This can be especially useful for isolating
unusual conflicts.
The Spectrum/24 VL card uses 22 I/O ports. These ports are not remappable.
The ports are:
01D0 01D1
05D0 05D1
09D0 09D1
0DD0 0DD1
11D0 11D1
41D0 41D1
51D0 51D1
81D0 81D1
91D0 91D1
C1D0 C1D1
D1D0 D1D1
Spectrum/24 VL requires no IRQs nor DMA lines.