4 ms·
Any protected mode (if enabled). It was introduced with the 286. The operating system/DOS extender could choose to let tasks (programs) run with the highest p
by peterfirefly 4mo ago
Any protected mode (if enabled). It was introduced with the 286.
The operating system/DOS extender could choose to let tasks (programs) run with the highest privileges, which would turn off some of the checks but not all of them -- you still needed valid selectors into valid slots in the descriptor tables.
- senfiaj 4mo agoIf I'm not mistaken 286's protected mode wasn't really that popular because it breaks real mode DOS programs. Meanwhile, 386's 32-bit protected mode with paging and virtual 8086 mode was a big success.