All articles tagged with #dr dos
A Reddit user has created a clean-room reimplementation of DR-DOS, calling it version 9.0 and placing it in beta after purchasing the trademark. The project aims for full compatibility with DOS, currently runs DOOM, and is free for non-commercial use for now, though the author has not open-sourced the code due to IP/licensing considerations tied to DR-DOS' history with Novell and Caldera.
A missing DR-DOS power management source code has been found in a patent. DR-DOS 6.0 has a built-in feature for putting the CPU in power-saving mode when idle, but it required a customized IDLE driver for each hardware platform to enable power management. No manufacturer ever bothered to develop one, leaving users with no option but to write a driver themselves. A U.S. patent includes dozens of pages of well-documented but poorly-scanned x86 assembly code, including source code for a basic IDLE86.SYS driver, which can be used to create a working IDLE driver.