?? shutdown.inc
字號:
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Shutdown.inc (c) Ville Turjanmaa
;; License: GPL. See file copying for details.
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
system_shutdown:
mov eax,3 ; Stop playing cd
call sys_cd_audio
; Disable PS/2 mouse
cmp [0xF604],byte 1
jne nops2mousedisable
mov al , 0xa7
out 0x64 , al
nops2mousedisable:
cli ; Darken screen
mov ecx,0x3fff00/4
push ecx
mov esi,[0xfe80]
cmp esi,32*0x100000
jbe no_darken_screen
mov edi,16*0x100000
sdnewpix:
mov eax,[esi]
add esi,4
shr eax,1
and eax,0x7f7f7f7f
stosd
loop sdnewpix
pop ecx
mov esi,16*0x100000
mov edi,[0xfe80]
cld
rep movsd
no_darken_screen:
; Blue background
mov eax,[0xfe00]
shr eax,1
sub eax,200
mov ebx,[0xfe04]
shr ebx,1
mov [shutdownpos],ebx
sub ebx,120
mov edi,1
mov ecx,0x0000A0
sdnewpix2:
call putpixel
inc eax
mov esi,[0xfe00]
shr esi,1
add esi,200
cmp eax,esi
jnz sdnewpix2
dec ecx
mov eax,[0xfe00]
shr eax,1
sub eax,200
inc ebx
mov edx,[shutdownpos]
sub edx,86
cmp ebx,edx
jnz sdnewpix2
; Its safe to power down computer..
mov esi,[0xfe00]
shr esi,1
sub esi,200 ; 220
add esi,26 ; 20 ; 27
shl esi,16
mov eax,esi
add eax,[shutdownpos]
sub eax,88+19
mov esi,5
mov ebx,0xffffff
mov ecx,shutdowntext
mov edx,60
mov edi,1
newsdt:
call dtext
; Wait for Esc key
waitforsomekey:
in al,0x60
mov bl,al
waitforkey:
in al,0x60
cmp al,bl
je waitforkey
; Esc down ?
in al,0x60
cmp al,1
jne waitforkey
mov bl,al
waitforkey2:
in al,0x60
cmp al,bl
je waitforkey2
; Esc up ?
mov bl,0
in al,0x60
in al,0x60
cmp al,127
je waitforsomekey
; Boot with keyboard controller
mov edx , 0x64
mov eax , 0xfe
out dx,al
cli
jmp $ ; not propably needed
;
; The following code is disabled due to compatibility issues
;
mov esi,[0xfe00] ; version
shr esi,1
sub esi,200
add esi,20
shl esi,16
mov eax,esi
add eax,[shutdownpos]
sub eax,105
mov ebx,0xffffff
mov ecx,version+0x10000
mov edx,11+2
mov edi,1
call dtext
mov eax,rosef ; load rose.txt
mov ebx,0
mov ecx,16800
mov edx,0x90000
mov esi,12
call fileread
mov esi,[0xfe00] ; draw rose
shr esi,1
add esi,20
shl esi,16
mov eax,esi
add eax,[shutdownpos]
sub eax,110
mov ebx,0xff0000
mov ecx,0x90001
mov edx,27
mov edi,1
nrl:
call dtext
sub ebx,0x050000
add eax,8
add ecx,31
cmp ecx,dword 0x90001+25*31
jnz nrl
call checkEgaCga
cli
; Load kernel.mnt to 0x8000:0
mov eax,kernel
mov esi,12
mov ebx,0
mov ecx,-1
mov edx,0x80000
call fileread
; Move kernel loader to 0x4000:0
mov esi,restart_kernel_4000
mov edi,0x40000
mov ecx,1000
cld
rep movsb
; Restore 0x0 - 0xffff
mov eax,0x2F0000
mov ebx,0x0000
mov ecx,0xffff
call memmove
call restorefatchain
mov eax,pr_mode_exit
mov [0x467+0],ax
mov [0x467+2],word 0x1000
mov al,0x0F
out 0x70,al
mov al,0x05
out 0x71,al
mov al,0xFE
out 0x64,al
hlt
;; use16 ; disabled 0.82
pr_mode_exit:
mov ax,1000
mov ds,ax
mov es,ax
mov fs,ax
mov gs,ax
mov ss,ax
mov al,2
out 0x21,al
mov al,0
out 0xA1,al
jmp real_mode-0x10000
old_ints_h:
dw 4*0x20
dd 0
dw 0
real_mode:
lidt [cs:old_ints_h-0x10000]
mov sp,0xfff0
sti
nbw:
xor ax,ax
in al,0x60
cmp al,7
jge nbw
mov bl,al
nbw2:
in al,0x60
cmp al,bl
je nbw2
cmp ax,240
jne nbw31
mov al,bl
dec al
jmp nbw32
nbw31:
add bl,128
cmp al,bl
jne nbw
sub al,129
nbw32:
cmp al,1 ; Write floppy
jnz no_floppy_write
call floppy_write
jmp nbw
no_floppy_write:
; cmp al,2 ; Poweroff
; jnz no_apm_off
; call APM_PowerOff
; no_apm_off:
cmp al,2 ; Boot
jnz no_sys_boot
jmp 0xffff:0
no_sys_boot:
cmp al,3 ; Restart kernel
je restart_kernel
jmp nbw
kernel:
db 'KERNEL MNT'
restart_kernel:
mov ax,0x0003 ; set text mode for screen
int 0x10
jmp 0x4000:0000
restart_kernel_4000:
mov di,0x1000 ; Load kernel image from 0x8000:0 -> 0x1000:0
new_kernel_block_move:
mov ebx,0
new_kernel_byte_move:
mov ax,di
add ax,0x7000
mov es,ax
mov dl,[es:bx]
mov es,di
mov [es:bx],dl
inc ebx
cmp ebx,65536
jbe new_kernel_byte_move
add di,0x1000
cmp di,0x2000
jbe new_kernel_block_move
wbinvd ; Write and invalidate cache
mov ax,0x1000
mov es,ax
mov ax,0x2000
mov ss,ax
mov sp,0xff00
jmp 0x1000:0000
APM_PowerOff: ;; not in use at the moment due to
;; incompatibility in some machines
mov ax,5304h
sub bx,bx
int 15h
mov ax,5302h
sub bx,bx
int 15h
mov ax,5308h
mov bx,1
mov cx,bx
int 15h
mov ax,530Dh
mov bx,1
mov cx,bx
int 15h
mov ax,530Fh
mov bx,1
mov cx,bx
int 15h
mov ax,530Eh
sub bx,bx
mov cx,102h
int 15h
mov ax,5307h
mov bx,1
mov cx,3
int 15h
ret
flm:
db 0x0
floppy_write: ; Write diskette image to floppy
pusha
mov ax,0x1000
mov es,ax
cmp [es:flm-0x10000],byte 1
je fwwritedone
mov [es:flm-0x10000],byte 1
mov ax,0x0000 ; reset drive
mov dx,0x0000
int 0x13
mov cx,0x0001 ; startcyl,startsector
mov dx,0x0000 ; starthead,drive
push word 80*2 ; read no of sect
fwwrites:
pusha
; Move 1mb+ -> 0:a000
pusha
mov si,fwmovedesc -0x10000
push word 0x1000
pop es
mov cx,256*18
mov ah,0x87
int 0x15
mov eax,[es:fwmovedesc-0x10000+0x12]
add eax,512*18
mov [es:fwmovedesc-0x10000+0x12],eax
popa
xor si,si
fwnewwrite:
push word 0x0
pop es
mov bx,0xa000 ; es:bx -> data area
mov ax,0x0300+18 ; read, no of sectors to read
int 0x13
cmp ah,0
jz fwgoodwrite
add si,1
cmp si,10
jnz fwnewwrite
add esp,32+2
popa ; Can not access diskette
ret
fwgoodwrite:
popa
inc dh
cmp dh,2
jnz fwbb2
mov dh,0
inc ch
fwbb2:
cld
pop ax
dec ax
push ax
cmp ax,0
jnz fwrs
pop ax
jmp fwwritedone
fwrs:
jmp fwwrites
fwmovedesc:
db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
db 0xff,0xff,0x0,0x00,0x10,0x93,0x0,0x0
db 0xff,0xff,0x0,0xa0,0x00,0x93,0x0,0x0
db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
fwwritedone:
popa
ret
use32
shutdownpos:
dd 0x0
rosef:
db "ROSE TXT"
shutdowntext:
db "It's safe to power off computer or press <Esc> to reboot. "
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