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The CodeView start-up options are shown in the table below:

     Option             Effect
     ------             ------
     /B                 Starts in black-and-white mode
                        with color graphics adapter (CGA).

     /C<commands>       Executes commands on start-up.

     /F                 Starts with screen flipping (exchanges
                        screens by flipping video pages).

     /M                 Disables the mouse.

     /T                 Starts in sequential mode.

     /S                 Starts with screen swapping (exchanges
                        screens by swapping buffers).

     /W                 Starts in window mode.

     /43                Starts in 43-row mode with an
                        enhanced graphics adapter (EGA).

     /2                 Allows two video adapters. You must have
                        two video adapters and two monitors. The
                        program display appears on the current default
                        adapter and monitor, while the debugging
                        display appears on the other adapter and
                        monitor. For example, if you have both a color
                        graphics adapter and a monochrome adapter, you
                        might want to set the CGA up as the default
                        adapter. You could then debug a graphics
                        program with the graphics display appearing on
                        the graphics monitor and the debugging display
                        appearing on the monochrome adapter. Microsoft
                        Mouse support will be disabled on the
                        debugging display if you use this option.

     /D                 Turns off certain IBM-specific functions,
                        including NMI trapping and 8259 masking. This
                        option is required for IBM-compatible machines
                        that do not support these functions, such as
                        the IBM PC Convertible, the Tandy 1000, and
                        the AT&T 6300 Plus. CONTROL-C and CONTROL-
                        BREAK do not work if this option is used.
                        Sequential mode is set automatically; use /W
                        with /D to enable window mode.

     /I                 Forces the debugger to handle certain IBM-
                        specific functions, including NMI trapping and
                        8259 masking. This option can be used to
                        enable CONTROL-C and CONTROL-BREAK handling on
                        computers that the debugger does not recognize
                        as being IBM compatible, such as the Eagle PC.
                        Window mode is set automatically; you do not
                        have to specify /W.

If you have an IBM Personal Computer, the system always starts
in window mode. Screen flipping is used if you have a graphics
adapter and monitor.  Screen swapping is used if you have a
monochrome adapter and monitor.

If you have an IBM-compatible computer, you will usually want to
specify the options that are used automatically with the IBM PC.

If your computer is not IBM compatible, you will not be able to
use the CodeView debugger in window mode. You must specify /T to start
in sequential mode. Sequential mode is not as convenient, but any
debugging operation that can be done in window mode can also be done
in sequential mode. You will not be able to use a mouse or menus in
sequential mode, but you can use most function keys.