K 10
svn:author
V 3
bde
K 8
svn:date
V 27
2004-06-19T12:28:48.000000Z
K 7
svn:log
V 977
Removed foot-shooting setting of CR0_TS in exec_setregs().  It is
unnecessary because cpu_setregs() and/or npxinit() always sets CR0_TS
during system initialization, and CR0_TS is set in the next statement
(fpstate_drop()) if necessary after system initialization.  Setting
it unnecessarily was less than a pessimization since it broke the
invariant that the npx can be used without an npxdna() trap if
fpucurthread is non-null.  The broken invariant became harmful when I
added an fnclex to npxdrop().

Removed setting of CR0_MP in exec_setregs().  This was similarly
unnecessary but was harmless.

Updated comments (mainly by removing them).  Things are simpler now
that we have cpu_setregs() and don't support a math emulator or pretend
to support not having either a math emulator or an npx.

Removed the ifdef for avoiding setting CR0_NE in the !SMP case in
cpu_setregs().  npx_probe() should reverse the setting if it wants to
force IRQ13 exception handling for testing.

END