diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 1998-04-18 07:40:04 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 1998-04-18 07:40:04 +0000 |
| commit | 888b63e1743ef4b4277b88169301e0b5c1445e16 (patch) | |
| tree | 5b9d1c51879f3e1f909c17e6ec7c2f6050ac92e1 /sys/arch/i386/stand/biosboot | |
| parent | c2ee71fae9cec63f4a94c921619dc28d1c5b5032 (diff) | |
i386 bootblocks that work for 2.3. A tale too long to tell
Diffstat (limited to 'sys/arch/i386/stand/biosboot')
| -rw-r--r-- | sys/arch/i386/stand/biosboot/biosboot.S | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/sys/arch/i386/stand/biosboot/biosboot.S b/sys/arch/i386/stand/biosboot/biosboot.S index 227435b71a8..4f08c311b03 100644 --- a/sys/arch/i386/stand/biosboot/biosboot.S +++ b/sys/arch/i386/stand/biosboot/biosboot.S @@ -1,4 +1,4 @@ -/* $OpenBSD: biosboot.S,v 1.26 1998/04/13 00:37:41 deraadt Exp $ */ +/* $OpenBSD: biosboot.S,v 1.27 1998/04/18 07:39:35 deraadt Exp $ */ /* * Copyright (c) 1997 Michael Shalayeff, Tobias Weingartner @@ -39,7 +39,7 @@ #define addr32 .byte 0x67 #define data32 .byte 0x66 -#define BLKCNT 14 /* Max without colliding with the partition table */ +#define BLKCNT 12 /* Max without colliding with the partition table */ #define BOOTSEG 0x07c0 /* boot loaded here */ #define BOOTSTACK 0xfffc /* stack starts here */ @@ -54,7 +54,7 @@ /* Clobbers %esi - maybe more */ #define puts(s) \ - data32; \ + data32; \ movl $s, %esi; \ .byte 0xe8; \ .word Lmessage - . - 2 @@ -132,7 +132,7 @@ load_msg: popl %dx #endif -#ifdef DEBUG +#ifdef BDEBUG putc('R') #endif @@ -156,6 +156,7 @@ load_msg: 1: pushl %cx + putc('.') /* show progress indicator */ cld lodsl /* word */ /* cylinder/sector */ movl %ax, %cx @@ -173,10 +174,10 @@ load_msg: 2: .asciz "\r\nRead error\r\n" 3: /* read next block */ - putc('.') /* show progress indicator */ popl %ax - movzbl %al, %ax + data32 + movzbl %al, %eax shll $9, %ax /* 512 bytes sectors */ addl %ax, %bx popl %cx @@ -206,7 +207,7 @@ halt: * is supposed to go. Screw it, just assume that the image * is sane. */ -#ifdef DEBUG +#ifdef BDEBUG putc('P') #endif @@ -236,7 +237,7 @@ halt: * 32bit mode * set up %ds, %ss, %es, etc */ - movw $0x10, %eax + movl $0x10, %eax movl %ax, %ds movl %ax, %ss movl %ax, %es @@ -244,7 +245,7 @@ halt: movl %ax, %gs movl $BOOTSTACK, %esp -#ifdef DEBUG +#ifdef BDEBUG movl $0xb8004, %ebx movl $0x074f0747, (%ebx) #endif |