Lower the priority of an interrupt

Thread View: comp.os.msdos.programmer

1 messages

[T] Back to Threads [V] Tree View [G] Group Articles

1 total messages Started by matt Mon, 25 Jan 1993 20:36

#7753

Author: matt
Date: Mon, 25 Jan 1993 20:36

16 lines
1020 bytes

Here is the problem:

I have written an interrupt handler for the clock
interrupt that basically checks to see if a task that requires
lower priority should run.  So, what I would like to do is lower the priority
of the current interrupt to a lower level.  I tried doing this by changing
the mask register in the 8259A, but this didn't seem to do the trick.

I think the problem is that I am doing a non-specific end of interrupt
rather than a specific end of interrupt, or that somethng else must be changed
besides just the mask regsiter...  Any ideas (of working pieces of code)?

Thanks in advance,

-- Matt

Thread Navigation

This is a paginated view of messages in the thread with full content displayed inline.

Messages are displayed in chronological order, with the original post highlighted in green.

Use pagination controls to navigate through all messages in large threads.

Back to All Threads