[src/trunk]: src/sys/arch/sparc/sparc In the idle loop add a comment to wrpsr...

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

details:   https://anonhg.NetBSD.org/src/rev/8298643e5dc4
branches:  trunk
changeset: 520356:8298643e5dc4
user:      uwe <uwe%NetBSD.org@localhost>
date:      Tue Jan 08 05:59:31 2002 +0000

description:
In the idle loop add a comment to wrpsr in the annulled delay slot of
an ifdefed branch instruction to make it obvious where it belongs to.
The ifdef makes it very confusing visually.

diffstat:

 sys/arch/sparc/sparc/locore.s |  5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diffs (26 lines):

diff -r 948383560246 -r 8298643e5dc4 sys/arch/sparc/sparc/locore.s
--- a/sys/arch/sparc/sparc/locore.s     Tue Jan 08 05:32:45 2002 +0000
+++ b/sys/arch/sparc/sparc/locore.s     Tue Jan 08 05:59:31 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: locore.s,v 1.150 2001/12/30 16:41:29 pk Exp $  */
+/*     $NetBSD: locore.s,v 1.151 2002/01/08 05:59:31 uwe Exp $ */
 
 /*
  * Copyright (c) 1996 Paul Kranenburg
@@ -4464,7 +4464,7 @@
 #endif
 
 idle_enter_no_schedlock:
-       wr      %g1, 0, %psr            ! (void) spl0();
+       wr      %g1, 0, %psr            ! spl0();
 1:                                     ! spin reading whichqs until nonzero
        ld      [%g2 + %lo(_C_LABEL(sched_whichqs))], %o3
        tst     %o3
@@ -4473,6 +4473,7 @@
 #else
        bnz,a   Lsw_scan
 #endif
+       ! NB: annulled delay slot (executed when we leave the idle loop)
         wr     %g1, PSR_PIL, %psr      ! (void) splhigh();
 
        ! Check uvm.page_idle_zero