> I would think it means code that front-ends one of the First Level Interrupt > Handlers
That's how Amdahl implemented SE and SP assist years ago. I think IBM did it to implement the IEEE floating point instructions so that they would work on processors that lacked the hardware. Of course these were not malicious implementations. Bob Shannon Rocket Software ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html

