bmacintyre@watsol.waterloo.edu (Blair MacIntyre) (10/26/88)
[ posted by Blair ... for Jan at the Science Centre - his news t'aint workin'
well! ]
Howdy.
I was wondering about using my own input handler...
Now before you jump down my throat telling me to read manuals,
I've successfully done it... essentially a:
OpenDevice on the input.device
and do an IND_ADDHANDLER command iorequest
BUT I have a question relating to doing this under
Manx (V3.6a) small-data model.
Does such an input handler need to do a geta4() and save registers D2/D3
at the beginning of the input-handling-routine,
or will a4 be OK??
My Manx manuals say that subtasks and INTERRUPT SERVICE ROUTINES must do
a geta4() if using small data model.
Does my input handler really qualify as such an interrupt service routine?
In my small tests it seems to work fine without geta4() nor saving D2/D3
but is this really kosher??
Thanks,
Jan Sven.
----------------------------------------------------------------
Mind like parachute - function only when open!
Happiness is being smart enough to know what not to worry about.
Jan (Jan, from Amsterdam) no-hyphen Sven Trabandt
...!{lsuc,utgpu,utzoo}!oscvax!jan
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