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This change courtesy of Charles Hannum <root@ihack.net>. This

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addresses the problems seen by Jason Thorpe <thorpej@netbsd.org> and
Erik Berls <cyber@netbsd.org> necessitating rev 1.20 of
biosboot/main.c.

Move BOOTSEG from 0x100 to 0x1000.
Move heap from 0x10000 to 0x20000.

XXXXXXXX

This is a Kluge From Hell to allow boot blocks to grow a little larger
without diskbuf[] crossing a 64k boundary.
This commit is contained in:
jhawk 2000-05-21 16:29:14 +00:00
parent 56cb02c358
commit 07a3d660c5
2 changed files with 5 additions and 5 deletions
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4
sys/arch/i386/stand/biosboot/Makefile
View File

@ -1,4 +1,4 @@
# $NetBSD: Makefile,v 1.29 2000/05/13 19:58:02 jdolecek Exp $
# $NetBSD: Makefile,v 1.30 2000/05/21 16:29:14 jhawk Exp $
S= ${.CURDIR}/../../../../
@ -57,7 +57,7 @@ CPPFLAGS+= -DPASS_BIOSGEOM
#CFLAGS= -O2 -fomit-frame-pointer -fno-defer-pop
CFLAGS+= -Wall -Wmissing-prototypes -Wstrict-prototypes -Wno-main
SAMISCCPPFLAGS+= -DHEAP_START=0x10000 -DHEAP_LIMIT=0x40000
SAMISCCPPFLAGS+= -DHEAP_START=0x20000 -DHEAP_LIMIT=0x40000
SAMISCMAKEFLAGS= SA_USE_CREAD=yes SA_INCLUDE_NET=no
.if (${BASE} == "biosboot")

6
sys/arch/i386/stand/lib/crt/bootsect/start_bootsect.S
View File

@ -1,4 +1,4 @@
/* $NetBSD: start_bootsect.S,v 1.17 2000/05/07 22:58:58 fvdl Exp $ */
/* $NetBSD: start_bootsect.S,v 1.18 2000/05/21 16:29:15 jhawk Exp $ */
/*
* BIOS bootsector startup
@ -64,7 +64,7 @@ WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#include "bbinfo.h"
BOOTSEG = 0x0100 # boot will be loaded here (below 640K)
BOOTSEG = 0x01000 # boot will be loaded here (below 640K)
BOOTSTACK = 0xfffc # boot stack
LOADSZ = PRIM_LOADSZ # size of first loaded chunk
@ -306,7 +306,7 @@ found:
data32
pushl %eax /* so we get address 0 in BOOTSEG */
data32
pushl $0x10+LOADSZ*0x10000
pushl $0x10+LOADSZ*0x20000
movl %esp, %esi
movb $0x42, %ah
int $0x13