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Date: Thu, 10 Jul 2014 15:34:19 -0700 (PDT)
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Subject: Re: Using outportb() with djgpp
From: RayeR <glaux AT centrum DOT cz>
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Hi,
I use outporb() quite often in my programs, e.g. for writting to LPT port and I never had this problems neither in pure DOS nor under Win98. You don't need to do anything more in pmode, io access should work out of the box. But I never tried to write to MPU401 ports. Is it possible that writting to the port will trigger some interrupt that is not handled properly?