[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: fpintr: FPU not belonging to anyone!
|
From: |
Roland McGrath |
|
Subject: |
Re: fpintr: FPU not belonging to anyone! |
|
Date: |
Wed, 22 Aug 2001 01:11:43 -0400 (EDT) |
> Ok, I see the situation more clearly now. The FPU not-present fault
> occurs every time a thread that has not yet used the FPU executes
> an ESC or WAIT instruction.
It's triggered when any FP instruction at all is used.
That's what the TS bit in %cr0 does (set_ts/clear_ts).