Monthly Archives: May 2023

Unintended Side Effects

Posted on May 23, 2023 by Michal Necasek

I’ve been lately trying to understand and improve the idling behavior of DOS programs and one of my guinea pigs has been the Open Watcom vi editor. While the 16-bit real-mode DOS variant of the editor idles nicely, the 32-bit … Continue reading →

Posted in Development, DOS Extenders | 1 Comment

IDLE DR-DOS

Posted on May 13, 2023 by Michal Necasek

I have a laptop. Sometimes I run VMs on it, and some of those VMs run DOS. When a DOS VM does not have any power management, the laptop quickly lets me know by kicking up the fan speed. It … Continue reading →

Posted in Computing History, Development, Digital Research | 9 Comments

Tracking Down a Bug

Posted on May 1, 2023 by Michal Necasek

When I first encountered the Unix vi editor many years ago, I recoiled in horror. It was nothing like the editors I was used to—Borland IDEs, DOS 5.0/6.x EDIT, or OS/2 and Windows editors. But over the years, I learned … Continue reading →

Posted in Debugging, Development, DOS, Watcom | 14 Comments