diff options
Diffstat (limited to 'sys/boot/pc98/boot0.5/boot0.5.s')
| -rw-r--r-- | sys/boot/pc98/boot0.5/boot0.5.s | 293 |
1 files changed, 0 insertions, 293 deletions
diff --git a/sys/boot/pc98/boot0.5/boot0.5.s b/sys/boot/pc98/boot0.5/boot0.5.s deleted file mode 100644 index f87800656767..000000000000 --- a/sys/boot/pc98/boot0.5/boot0.5.s +++ /dev/null @@ -1,293 +0,0 @@ -# Copyright (c) KATO Takenori, 1999, 2000, 2007. -# -# All rights reserved. Unpublished rights reserved under the copyright -# laws of Japan. -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions -# are met: -# -# 1. Redistributions of source code must retain the above copyright -# notice, this list of conditions and the following disclaimer as -# the first lines of this file unmodified. -# 2. Redistributions in binary form must reproduce the above copyright -# notice, this list of conditions and the following disclaimer in the -# documentation and/or other materials provided with the distribution. -# -# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR -# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES -# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. -# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, -# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT -# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF -# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -# -# $FreeBSD$ -# - .global main - .code16 - - .text -main: - # Check hireso mode - movw $0x501, %bx # BIOS_FLAG - call read_biosparam - testb $0x08, %dl - jz normalmode - movb $1, ishireso -normalmode: - call sc_init - - # Display title and copyright. - movw $title, %di - call sc_puts - xorw %cx, %cx - movw $1, %dx - call sc_goto - movw $copyright, %di - call sc_puts - - # Scan hard drives - xorw %si, %si # number of partition - call scan_sasi # SASI/IDE - call scan_scsi # SCSI - movw %si, ndevice - orw %si, %si - jnz drives_found - jmp exit # No hard drives - -drives_found: - # Setup sector size dependent parameters - movw %si, %cx # %cx = number of devices -setup_loop: - movw %cx, %di - decw %di - shlw %di - movw secsize(%di), %ax - cmpw $1024, %ax - je setup_1024 - cmpw $512, %ax - je setup_512 - # 256 bytes/sector - movw $0x100, partoff(%di) - movw $0x0fa, defflagoff(%di) - movw $0x0fb, defpartoff(%di) - movw $8, maxpart(%di) - jmp setup_secsize_end - # 1024 bytes/sector -setup_1024: - # XXX Fix me! - movw $0x400, partoff(%di) - movw $0x3fa, defflagoff(%di) - movw $0x3fb, defpartoff(%di) - movb $32, maxpart(%di) - jmp setup_secsize_end - # 512 bytes/sector -setup_512: - movw $0x200, partoff(%di) - movw $0x1fa, defflagoff(%di) - movw $0x1fb, defpartoff(%di) - movb $16, maxpart(%di) -setup_secsize_end: - loop setup_loop - - # For debug with floppy, fake the parameter. - movw $0x584, %bx # DISK_BOOT - call read_biosparam - andb $0xf0, %dl - cmpb $0x90, %ah - jne boot_from_hdd - movb daua, %dl - call write_biosparam - -boot_from_hdd: - movw $500, %cx -wait_0_5: - call wait1ms - loop wait_0_5 - - # If the TAB is pressed, don't try to boot from default partition - xorw %di, %di # flag -wait_key_release: - call sc_iskeypress - orw %ax, %ax - jz key_release # KBD buffer empty. - call sc_getc - cmpb $0x0f, %ah # TAB - jne wait_key_release - # TAB pressed - movw $1, %di - jmp wait_key_release -key_release: - orw %di, %di - jnz dont_try_default # TAB pressed. - call trydefault - # Default partition not found. -dont_try_default: - call show_usage - call showdevices - call selector -exit: - ret -# -# Display usage -# -show_usage: - movw $44, %cx - movw $3, %dx - call sc_goto - movw $msg_usage1, %di - call sc_puts - movw $44, %cx - movw $4, %dx - call sc_goto - movw $msg_usage2, %di - call sc_puts - movw $44, %cx - movw $5, %dx - call sc_goto - movw $msg_usage3, %di - call sc_puts - movw $44, %cx - movw $7, %dx - call sc_goto - movw $msg_usage4, %di - call sc_puts - movw $44, %cx - movw $8, %dx - call sc_goto - movw $msg_usage5, %di - call sc_puts - movw $44, %cx - movw $9, %dx - call sc_goto - movw $msg_usage6, %di - call sc_puts - movw $44, %cx - movw $10, %dx - call sc_goto - movw $msg_usage7, %di - call sc_puts - movw $44, %cx - movw $11, %dx - call sc_goto - movw $msg_usage8, %di - call sc_puts - movw $44, %cx - movw $16, %dx - call sc_goto - movw $msg_usage9, %di - call sc_puts - movw $44, %cx - movw $17, %dx - call sc_goto - movw $msg_usage10, %di - call sc_puts - movw $44, %cx - movw $18, %dx - call sc_goto - movw $msg_usage11, %di - call sc_puts - movw $44, %cx - movw $19, %dx - call sc_goto - movw $msg_usage12, %di - call sc_puts - ret - -# -# Display device list -# -showdevices: - movw $2, %cx - movw $4, %dx - call sc_goto - movw $msg_device, %di - call sc_puts - xorw %si, %si # %si = device number - movw ndevice, %cx # %cx = number of devices -showdev_loop: - push %cx - movw $2, %cx - movw $5, %dx - addw %si, %dx - call sc_goto - # Check DA - movb daua(%si), %al - push %ax - andb $0xf0, %al - cmpb $0x80, %al - je show_sasi - cmpb $0xa0, %al - je show_scsi - # unknown device - movw $msg_unknown, %di - call sc_puts - jmp showunit - # SASI -show_sasi: - movw $msg_sasi, %di - call sc_puts - jmp showunit - # SCSI -show_scsi: - movw $msg_scsi, %di - call sc_puts - # Display unit number. -showunit: - pop %ax - andb $0x0f, %al - addb $'0', %al - call sc_putc - incw %si - pop %cx - loop showdev_loop - movw ndevice, %dx - addw $5, %dx - movw $2, %cx - call sc_goto - movw $msg_exitmenu, %di - call sc_puts - ret - - .data - .global curdevice, ndevice -ndevice: .word 0 # number of device -curdevice: .word 0 # current device - - .global ishireso -ishireso: .byte 0 - -title: .asciz "PC98 Boot Selector Version 1.2" -copyright: .ascii "(C)Copyright 1999-2007 KATO Takenori. " - .asciz "All rights reserved." -msg_device: .asciz "Device" -msg_sasi: .asciz "SASI/IDE unit " -msg_scsi: .asciz "SCSI ID " -msg_unknown: .asciz "unknown unit " -msg_exitmenu: .asciz "Exit this menu" -msg_usage1: .asciz "Device list" -msg_usage2: .asciz "UP, DOWN: select boot device" -msg_usage3: .asciz "RETURN: move to slice list" -msg_usage4: .asciz "Slice list" -msg_usage5: .asciz "UP, DOWN: select boot slice" -msg_usage6: .asciz "RETURN: boot" -msg_usage7: .asciz "SPACE: toggle default" -msg_usage8: .asciz "ESC: move to device list" -msg_usage9: .asciz "LEGEND" -msg_usage10: .asciz ">>: selected device/slice" -msg_usage11: .asciz "*: default slice to boot" -msg_usage12: .asciz "!: unbootable slice" - - .bss - .global daua, secsize, defflagoff, defpartoff - .global maxpart, partoff -daua: .space 12 # DA/DU list -secsize: .space 12 * 2 # Sector soize -defflagoff: .space 12 * 2 -defpartoff: .space 12 * 2 -maxpart: .space 12 * 2 -partoff: .space 12 * 2 |