Re: DOS 3.3 Interrupt question

[philip@labtam.labtam.oz.au (Philip Stephens)]

DAVID GRUMBINE writes:

>So, does any one remember how DOS 3.3 handles interrupts?

  It doesn't.  Or to be more precise, it switches off interrupts when
running the low-level drive access code (i.e. the RWTS routines), and
that's about it.  If you interrupt DOS 3.3 whilst it's not accessing the
drive, you'll be vectored off via the standard interrupt vectors on the
6502, and you won't be able to return to DOS 3.3--it's not reentrant.

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