diff options
Diffstat (limited to 'sys/arch/i386/stand/mbr')
| -rw-r--r-- | sys/arch/i386/stand/mbr/mbr.S | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/sys/arch/i386/stand/mbr/mbr.S b/sys/arch/i386/stand/mbr/mbr.S index 72d4696b41d..1c880a41656 100644 --- a/sys/arch/i386/stand/mbr/mbr.S +++ b/sys/arch/i386/stand/mbr/mbr.S @@ -1,4 +1,4 @@ -/* $OpenBSD: mbr.S,v 1.10 1997/08/13 02:22:02 mickey Exp $ */ +/* $OpenBSD: mbr.S,v 1.11 1997/08/29 19:47:24 mickey Exp $ */ /* * Copyright (c) 1997 Michael Shalayeff and Tobias Weingartner @@ -43,18 +43,14 @@ .file "mbr.S" #include <machine/asm.h> -#include <machine/specialreg.h> +#include <assym.h> #define data32 .byte 0x66 #define addr32 .byte 0x67 #define BOOTBIOS 0x7c0 /* segment where we are loaded */ #define BOOTRELOC 0x7a0 /* segment where to relocate */ -#define SIGNATURE 0xaa55 /* MBR signature */ -#define NUMPART 4 /* number of partitions in partition table */ #define PARTSZ 16 /* each partition table entry is 16 bytes */ -#define BSDPART 0xA6 /* OpenBSD partition */ -#define BOOTABLE 0x80 /* bootable partition */ #ifdef DEBUG #define CHAR_S 'S' /* started */ @@ -186,10 +182,10 @@ reloc: * for the (l)user though. */ 1: xorl %bx, %bx - # cmpw $SIGNATURE, (%bx) + # cmpw $DOSMBR_SIGNATURE, (%bx) .byte 0x81, 0xbf .word signature - .word SIGNATURE + .word DOSMBR_SIGNATURE je sigok data32 movl $esig, %esi @@ -207,12 +203,12 @@ sigok: data32 movl $pt, %esi data32 - movl $NUMPART, %ecx + movl $NDOSPART, %ecx 1: DBGMSG(CHAR_L) # movb (%si), %al .byte 0x8a, 0x44, 0x00 - cmpb $BOOTABLE, %al + cmpb $DOSACTIVE, %al je found data32 addl $PARTSZ, %esi @@ -357,7 +353,7 @@ endofcode: /* partition table */ /* flag, head, sec, cyl, type, ehead, esect, ecyl, start, len */ - . = 0x1be # starting address of partition table + . = DOSPARTOFF # starting address of partition table pt: .byte 0x0,0,0,0,0,0,0,0 .long 0,0 @@ -365,11 +361,11 @@ pt: .long 0,0 .byte 0x0,0,0,0,0,0,0,0 .long 0,0 - .byte BOOTABLE,0,1,0,BSDPART,255,255,255 + .byte DOSACTIVE,0,1,0,DOSPTYP_OPENBSD,255,255,255 .long 0,0x7FFFFFFF /* the last 2 bytes in the sector 0 contain the signature */ . = 0x1fe signature: - .short SIGNATURE + .short DOSMBR_SIGNATURE . = 0x200 |