On Fri, 30 Jul 2004, Eric Auer wrote:
You can "HLT" between every two 40[6c] readouts - if you know that there is no "CLI" state. However, why is it a problem to have CPU-heavy beep? For example boot menu delay in kernel does not "HLT" either and nobody except me ever mentioned the "HLT" energy saving possibility there.
The boot menu is used in a DOS session one time at maximum.
I do not care about "energy saving", but about DOSboxes. E.g. the "while(poll_data);" will consume any CPU it gets for nothing, playing nonsense with the scheduler of both Win32 (DOSbox) and Unix (DOSemu).
For embedded systems energy saving might be interesting, but I guess one would better disable BEEP there.
INT 15 - BIOS - WAIT (AT,PS)
AH = 86h
CX:DX = interval in microseconds
Return: CF clear if successful (wait interval elapsed)
CF set on error or AH=83h wait already in progress
AH = status (see #00496)
Cool! So, what's wrong with this one? One can fall back to the timer ticks for XTs, then?? What's this Hunter/16 conflicting with INT-15?
Bye,
--
Steffen Kaiser
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