[src/trunk]: src/sys/arch/atari/stand/installboot Revert revs 1.29 and 1.30, ...

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

details:   https://anonhg.NetBSD.org/src/rev/d09c270a5260
branches:  trunk
changeset: 803921:d09c270a5260
user:      tsutsui <tsutsui%NetBSD.org@localhost>
date:      Sun Nov 16 13:38:39 2014 +0000

description:
Revert revs 1.29 and 1.30, to make it easier to pullup an alternative fix.

Ok'ed by christos@
http://mail-index.netbsd.org/source-changes-d/2014/11/15/msg007338.html

diffstat:

 sys/arch/atari/stand/installboot/installboot.c |  9 +++------
 1 files changed, 3 insertions(+), 6 deletions(-)

diffs (30 lines):

diff -r 92c68d6903e1 -r d09c270a5260 sys/arch/atari/stand/installboot/installboot.c
--- a/sys/arch/atari/stand/installboot/installboot.c    Sun Nov 16 12:02:55 2014 +0000
+++ b/sys/arch/atari/stand/installboot/installboot.c    Sun Nov 16 13:38:39 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: installboot.c,v 1.30 2014/11/13 17:46:49 christos Exp $        */
+/*     $NetBSD: installboot.c,v 1.31 2014/11/16 13:38:39 tsutsui Exp $ */
 
 /*
  * Copyright (c) 1995 Waldi Ravens
@@ -467,7 +467,6 @@
     struct disklabel *label, u_int magic)
 {
        int              fd;
-       uint16_t         sum;
 
        memset(bb, 0, sizeof(*bb));
 
@@ -499,10 +498,8 @@
        setIDEpar(bb->bb_xxboot, sizeof(bb->bb_xxboot));
 
        /* set AHDI checksum */
-       sum = 0;
-       memcpy(bb->bb_xxboot + 255 * sizeof(sum), &sum, sizeof(sum));
-       sum = 0x1234 - abcksum(bb->bb_xxboot);
-       memcpy(bb->bb_xxboot + 255 * sizeof(sum), &sum, sizeof(sum));
+       *((u_int16_t *)bb->bb_xxboot + 255) = 0;
+       *((u_int16_t *)bb->bb_xxboot + 255) = 0x1234 - abcksum(bb->bb_xxboot);
 
        if (verbose) {
                printf("Primary   boot loader: %s\n", xxb);