rhl@cf-cm.computing-maths.cardiff.ac.uk (Robert Hartill) (03/07/91)
i've written a real-mode executive i.e a small OS for a PC, i want to use INTerrupt 8 to invoke my scheduler, When i run my executive under the Turbo Debugger (TD and TD386) INT 8 behaves as expected, and my scheduler is invoked, When i run my executive from the dos command line, the scheduler never gets invoked, According to the books i've read,, INT 8 is a timer in real mode, and a 'double fault' (if i remember correctly) exception in protected mode A can't be accidentally changing into protected mode, that takes a bit of code to do the initialisation (yes ?) HELP !!! ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: :: Robert Hartill, Dept Of Computing Mathematics, UWCC, Cardiff, UK. :: :: e-mail : rhl@cm.cf.ac.uk Fax : 0222 371921 :: ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: There are two kinds of people in the world: those who believe there are two kinds of people in the world, and those who don't. - Ross F. Papprill. -------------------------------------------------------------------------------