Skip to content

/IBMulator

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

System hangs after closing a DOS program launched from Windows 3.0 #19

Open
barotto opened this issue Jan 14, 2018 · 1 comment

Comments

Assignees
No one assigned
Labels
bug
Projects
None yet
Milestone
  Version 0.9
1 participant
@barotto
@barotto
Copy link
Owner

commented Jan 14, 2018

When a DOS program launched from Windows 3.0 (386) gets closed, the system hangs with a black screen and a blinking cursor instead of returning to Windows.

@barotto barotto added the bug label Jan 14, 2018

@barotto barotto added this to the Version 0.9 milestone Jan 14, 2018

@barotto barotto referenced this issue Jan 21, 2018

Closed

DOS programs crash Windows 3.1 (386 mode) #20

@barotto

This comment has been minimized.

Sign in to view
Copy link
Owner Author

commented Oct 20, 2018 •
edited

If Windows runs in PC-DOS 4, after calling INT 21/4C (terminate program), the CPU gets stuck in an infinite loop waiting for something that never happens.
If Windows runs in MS-DOS 6, INT 21/4C terminates normally and the system returns to program manager.
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.