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From: scole@janus.Berkeley.EDU (Steven Cole)
Newsgroups: comp.sys.ibm.pc.misc
Subject: Fast Timer Interrupts, anyone?
Message-ID: <39119@ucbvax.BERKELEY.EDU>
Date: 12 Oct 90 17:02:43 GMT
Sender: usenet@ucbvax.BERKELEY.EDU
Reply-To: scole@janus.Berkeley.EDU (Steven Cole)
Organization: University of California, Berkeley
Lines: 11

I'm wondering if anyone out there can help me...

I'm looking for a code fragment that sets up timer interrupts
approximately every 125 usec on a vanilla PC.  From what I understand,
this is possible by resetting the timer chip that causes INT 08, but
unfortunately I don't know just how to do this.  (I.e., is this
register memory mapped or does it take some obscure I/O operation?)

Thanks for any pointers,

Steve Cole,   scole@janus.berkeley.edu