Re: Disabling the F6 interrupt function
- From: tadamsmar <tadamsmar@xxxxxxxxx>
- Date: Wed, 22 Oct 2008 08:12:41 -0700 (PDT)
On Oct 22, 9:57 am, VAXman- @SendSpamHere.ORG wrote:
In article <e63ff718-1238-44a8-a5fc-c4309ef01...@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx>, tadamsmar <tadams...@xxxxxxxxx> writes:
On Oct 22, 8:28=A0am, tadamsmar <tadams...@xxxxxxxxx> wrote:
On Oct 21, 4:58=A0pm, koeh...@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx (Bob
Koehler) wrote:ps.com>, tadamsmar <tadams...@xxxxxxxxx> writes:
In article <6e8b50bf-00b8-4085-aaf6-0c1d382b3...@xxxxxxxxxxxxxxxxxxxxxx=
theThis solution is useful but not 100% reliable. =A0Only one AST is
established and it has to run to re-establish another. =A0If you jam =
F6 key down then I find that the F6 key eventually wins the race with
the re-establishment of the AST and causes an interrupt.
=A0 =A0Can't the AST re-establish itself before exiting?
Yep, and mine does.
But the program would need to re-establish the AST before any other
code was executed, like the code that delivers the next F6 key
My theory is that next F6 key interrupt gets processed be for the AST
is re-established. =A0 I guess I am assuming that an AST can be
interrupted by the next F6 Key interrupt. =A0Is that impossible?
Perhaps the AST can be run at some kind of higher level to ensure it
is not interrupted. =A0I have not had to deal with this kind of stuff in
a long time, there are cobwebs on what little I know about it.
Higher mode, not higher level. Maybe I need to run the AST at a
higher mode than the default mode?
.LONG 3 ; 3 arguments
.ADDRESS your_ctrl_c_ast_routine ; DCLAST$_ASTADR
.LONG 0 ; DCLAST$_ASTPRM
.LONG 0 ; DCLAST$_ACMODE
This will queue the AST for execution in EXECUTIVE mode. You will
need CMEXEC privilege to test this out. If this works, you'll need
to implement a user written system service or install your program
with the CMEXEC privilege to allow this to function for the average
VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)COM
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Come to think of it, I can run nulirpast once using your code and
then it will run enanulirp. So that will work.
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