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Chip 1998 February
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MIRO
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CR3DTV
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35T711.EXE
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VGA2TVE.TXT
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1996-12-10
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7KB
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173 lines
********************************************************************
* *
* miroVGA2TV *
* *
* (c) 1996 by miro Computer Products AG *
* *
********************************************************************
IMPORTANT: miroVGA2TV does not work with miroMEDIA 3D/SI
NOTE: This is a README file for the version 3.1 miroVGA2TV.
********************************************************************
0. Contents
********************************************************************
0. Contents
1. What is miroVGA2TV
2. Configuring
3. Starting
4. Command line parameters
5. Limitations
********************************************************************
1. What is miroVGA2TV
********************************************************************
miroVGA2TV allows you to connect a TV set to your computer and
use it as a graphics display also under DOS.
In this way, you can record the operation of DOS programs to video
or you can play DOS games using the TV set (which is larger
than the computer monitor in most cases).
You can also select the graphics modes listed under 5.).
After you started miroVGA2TV, all supported miroVGA2TV graphics
modes are routed to the RCA socket of the connected TV set.
********************************************************************
2. Configuring
********************************************************************
In most cases, miroVGA2TV does not have to be configured and
works automatically.
You can make, however, special settings using command line
parameters.
********************************************************************
3. Starting
********************************************************************
*NOTICE*
At the time, you cannot operate this tool in the DOS box!
If you are still in Windows 3.X or Win95, you have to leave the
graphical user interface.
If you want to use miroVGA2TV with a PAL TV set,
enter
VGA2TV <ENTER>
If you want to use miroVGA2TV with an NTSC TV set,
enter
VGA2TV /NN <ENTER>
********************************************************************
4. Command line parameter
********************************************************************
When calling miroVGA2TV you can enter different options after
the file name.
If you call miroVGA2TV for the first time, the TSR is loaded into the memory
and a part of the program stays resident (about 4k).
If you call miroVGA2TV again, you can change some parameters.
The following parameters are available:
--------------------------------------------------------------------------
General options:
/? - gives you brief help instructions
/?? - gives you detailed help instructions
/Q - messages do not appear on the screen
(except for error messages)
--------------------------------------------------------------------------
Options which are only available when loading miroVGA2TV
(first call):
/N[P/N] - selects the video standard (P for PAL, N for NTSC).
- Without this parameter PAL is the default.
--------------------------------------------------------------------------
Options which are only active after having loaded miroVGA2TV:
/U - Removes miroVGA2TV from the memory
/A - Enables miroVGA2TV when it is in the memory
but has been disabled with the \D parameter.
/D - Disables resident miroVGA2TV.
(This option makes it possible to switch miroVGA2TV off
temporarily without removing it from the memory).
/M[<mode>[+/-]]
- Use this option to switch the graphics modes supported by
miroVGA2TV on/off. Without entering +/- the available
modes and their present state are output.
/O[+/-]
- Use this option to switch the "TVOnly" mode on/off.
If the "TVOnly" mode is switched on, the VESA BIOS
makes only modes available which are supported by
miroVGA2TV.
/C[+/-]
- This option automatically distinguishes between
video modes 12(640x480x4) <-> 12X(320x240x8) and
13(320x200x8) <-> 13X(320x240x8).
If this feature is disabled, the timing for the
video mode 13X will not be adapted.
/F<opt>[+/-]
- Use this option to force some timing parameters
(You should only use this option with together with
the /C+ option).
This option can be useful if the application changes
the default video timing.
/FX - Force alternative timing for modes 12 and 13.
/FI - Force interlaced timings.
/FS - Force default timings for modes 12 and 13.
/FT - Enable continuous monitoring of registers.
/FD - Force delayed mode initialisation.
********************************************************************
5. Limitations
********************************************************************
- miroVGA2TV supports the following graphics modes for the
PAL and the NTSC video standards.
Mode Resolution Art Standard
-----------------------------------
1 40x 25x 4 Text enabled
3 80x 25x 4 Text disabled
D 320x200x 4 Graphics enabled
12 640x480x 4 Graphics enabled
12X 320x240x 8 Graphics enabled
13 320x200x 8 Graphics enabled
13X 320x240x 8 Graphics enabled
100 640x400x 8 Graphics enabled
101 640x480x 8 Graphics enabled
10D 320x200x15 Graphics enabled
10E 320x200x16 Graphics enabled
10F 320x200x32 Graphics enabled
110 640x480x15 Graphics enabled
111 640x480x16 Graphics enabled
112 640x480x32 Graphics enabled
- miroVGA2TV does not work under Windows or in the DOS box.
Please avoid starting Windows while miroVGA2TV is active
(remove the program entering "vga2tv -u").
- Graphics modes larger than 640x480 pixels cannot be displayed
on the TV screen completely and are not supported.
- miroVGA2TV does not work with programs, which cannot initialize
the screen via the BIOS or which modify the graphics register
afterwards. In this case the TV monitor shows no or no still image.