Try to run it in Windows mode.
A Casio FX-88OP is a scientific calculator. To program this, simply run the program in the true MS-DOS mode. Do not use an MS-DOS prompt.
Your question has nothing to do with C language, it's about your Windows' DOS-compatibility (or incompatibility).
Dos was written in assembly.
Access the hardware directly: possible in DOS, not possible in Windows.
It can't be run in DOS mode because it relies on Windows-specific APIs. DOS mode is running the program in either DOS, or in a DOS box under Windows. Basically, it is saying that it can't run on DOS because it is not a DOS program.
As it is a DOS game, all you have to do is restart in MS-DOS mode to play it.
There is no DOS mode to get in to in Mac OS X and so there is nothing to get out of.
Windows 2000, XP, and Vista do not have a "DOS mode." To start Windows 95 and 98 in MS-DOS mode, press F8 when the splash screen appears. Then select "Start computer in MS-DOS mode" from the list.
To turn off DOS mode, find the spot to type a command (if there is one) and type exit.
DOS mode
DOS mode
Try to run it in Windows mode.
If you are wanting to BOOT to dos, do the following: Hold down the F8 button. You will go to a screen that offers you several choices. One of them is safe mode command prompt only. Choose that one and you will be in dos mode. If you just want to go briefly into a dos box, go to START>RUN and type CMD. A dos box will appear.
There is no "DOS mode" for a hard drive, and it is not necessary to use DOS to format a hard drive. Vista's installer had a built-in partitioner and formatter.
if only i knew the answer to that
Enter the word Exit