[src/nathanw_sa]: src/sys/arch/i386/i386 Have cpu_switch() return a flag indi...

[nathanw <nathanw%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/67805d1a115f
branches:  nathanw_sa
changeset: 504605:67805d1a115f
user:      nathanw <nathanw%NetBSD.org@localhost>
date:      Fri Apr 06 21:00:40 2001 +0000

description:
Have cpu_switch() return a flag indicating whether or not it switched
to a different process.

diffstat:

 sys/arch/i386/i386/locore.s |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (34 lines):

diff -r 30bf40fe6d5c -r 67805d1a115f sys/arch/i386/i386/locore.s
--- a/sys/arch/i386/i386/locore.s       Fri Apr 06 15:05:56 2001 +0000
+++ b/sys/arch/i386/i386/locore.s       Fri Apr 06 21:00:40 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: locore.s,v 1.233.2.1 2001/03/05 22:49:12 nathanw Exp $ */
+/*     $NetBSD: locore.s,v 1.233.2.2 2001/04/06 21:00:40 nathanw Exp $ */
 
 /*-
  * Copyright (c) 1998, 2000 The NetBSD Foundation, Inc.
@@ -1866,6 +1866,7 @@
        sti
 
        /* Skip context switch if same process. */
+       movl    $1, %eax        
        cmpl    %edi,%esi
        je      switch_return
 
@@ -1964,7 +1965,7 @@
 
        /* Interrupts are okay again. */
        sti
-
+       xor     %eax,%eax
 switch_return:
        /*
         * Restore old cpl from stack.  Note that this is always an increase,
@@ -1972,7 +1973,6 @@
         */
        popl    _C_LABEL(cpl)
 
-       movl    %edi,%eax               # return (p);
        popl    %edi
        popl    %esi
        popl    %ebx