[src/trunk]: src/sys/arch/sparc64/sparc64 Optimization to pmap_zero_page(): w...

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

details:   https://anonhg.NetBSD.org/src/rev/8f9e77fef17d
branches:  trunk
changeset: 495243:8f9e77fef17d
user:      mycroft <mycroft%NetBSD.org@localhost>
date:      Mon Jul 24 16:21:02 2000 +0000

description:
Optimization to pmap_zero_page(): we only need to use the first 16 FP regs,
as in bzero().

diffstat:

 sys/arch/sparc64/sparc64/locore.s |  12 ++----------
 1 files changed, 2 insertions(+), 10 deletions(-)

diffs (33 lines):

diff -r 02e1c3d75f59 -r 8f9e77fef17d sys/arch/sparc64/sparc64/locore.s
--- a/sys/arch/sparc64/sparc64/locore.s Mon Jul 24 16:08:18 2000 +0000
+++ b/sys/arch/sparc64/sparc64/locore.s Mon Jul 24 16:21:02 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: locore.s,v 1.88 2000/07/24 16:08:18 mycroft Exp $      */
+/*     $NetBSD: locore.s,v 1.89 2000/07/24 16:21:02 mycroft Exp $      */
 /*
  * Copyright (c) 1996-1999 Eduardo Horvath
  * Copyright (c) 1996 Paul Kranenburg
@@ -8582,14 +8582,6 @@
        fzero   %f10
        fzero   %f12
        fzero   %f14
-       fzero   %f16                            ! And second bank
-       fzero   %f18
-       fzero   %f20
-       fzero   %f22
-       fzero   %f24
-       fzero   %f26
-       fzero   %f28
-       fzero   %f30
 
        stxa    %o3, [%o3] ASI_DMMU_DEMAP       ! Do the demap
        membar  #Sync                           ! No real reason for this XXXX
@@ -8610,7 +8602,7 @@
        stda    %f0, [%o2] ASI_BLK_COMMIT_P             ! Store 64 bytes
        add     %o2, 64, %o2
        dec     128, %o4
-       stda    %f16, [%o2] ASI_BLK_COMMIT_P            ! Store 64 bytes
+       stda    %f0, [%o2] ASI_BLK_COMMIT_P             ! Store 64 bytes
        brgz,pt %o4, 1b
         add    %o2, 64, %o2