DOS ain't dead - And now: int 0x21 in hw interrupt handler?

And now: int 0x21 in hw interrupt handler? (Developers)

posted by tom , Germany (West), 14.12.2012, 18:25

> And now I have a different question: What issues will or can I run into
> when calling int 0x21 inside my interrupt handler?
literally ALL kind of issues; DOS was not designed for that.

take
http://http://en.wikipedia.org/wiki/Terminate_and_Stay_Resident
as a starter, but be prepared for a VERY steep learning curve.

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Complete thread:

Basics of interrupt chaining? - myrkraverk, 13.12.2012, 19:39 (Developers)
- Basics of interrupt chaining? - myrkraverk, 13.12.2012, 20:19
- Basics of interrupt chaining? - Japheth, 13.12.2012, 21:31
  - And now: int 0x21 in hw interrupt handler? - myrkraverk, 14.12.2012, 02:58
    - And now: int 0x21 in hw interrupt handler? - Japheth, 14.12.2012, 06:10
    - And now: int 0x21 in hw interrupt handler? - tom, 14.12.2012, 18:25
    - And now: int 0x21 in hw interrupt handler? - bretjohn, 15.12.2012, 01:29
      - And now: int 0x21 in hw interrupt handler? - myrkraverk, 15.12.2012, 15:52
        And now: int 0x21 in hw interrupt handler? - bretjohn, 17.12.2012, 18:08
        And now: int 0x21 in hw interrupt handler? - myrkraverk, 18.12.2012, 20:16
        And now: int 0x21 in hw interrupt handler? - tom, 19.12.2012, 15:54
- Basics of interrupt chaining? - bretjohn, 14.12.2012, 19:43