KolibriOS/kolibrios
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kolibrios/kernel/trunk/boot/bootcode.inc
Andrey Halyavin (halyavin) 94f0f6c818 *Font functions have been rewritten. Now kernel use bit-compressed fonts. 
You must use char.mt and char2.mt from MeOsEmul or MeOsDebug program 
or download them at http://shade.msu.ru/~msu-se/temp/char.7z
*Small fix in memmap.inc for memory manager.

git-svn-id: svn://kolibrios.org@12 a494cfbc-eb01-0410-851d-a64ba20cac60
2005-10-25 11:01:36 +00:00

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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; BOOTCODE.INC ;;
;; ;;
;; 16 bit bootcode for MenuetOS ;;
;; ;;
;; Copyright 2002 Ville Turjanmaa ;;
;; ;;
;; See file COPYING for details ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;==========================================================================
;
; 16 BIT FUNCTIONS
;
;==========================================================================
print: push si
mov si,leftpr-0x10000
call printplain
pop si
printplain: pusha
mov dx,0x1000
mov es,dx
cmp byte [es:display_atboot-0x10000],2
je printplain_exit
mov ds,dx
cld
lodsb
prpl1:
mov ah,0xe
xor bh,bh
int 0x10
lodsb
cmp al,0
jne prpl1
printplain_exit:
popa
ret
setbase1000: push ax
mov ax,0x1000
mov es,ax
mov ds,ax
pop ax
ret
getkey: push ecx
push edx
add ebx,0x0101
xor eax,eax
gk1:
in al,0x60
mov cl,al
gk0:
in al,0x60
cmp al,cl
je gk0
cmp ax,11
jg gk0
gk0_1:
mov cl,al
; add al,47
; mov [ds:keyinbs-0x10000],al
; mov si,keyinbs-0x10000
; call printplain
gk12:
in al,0x60
cmp al,cl
je gk12
cmp ax,240
jne gk13
mov al,cl
jmp gk14
gk13:
add cl,128
cmp al,cl
jne gk1
sub al,128
gk14:
movzx edx,bl
cmp eax,edx
jb gk1
movzx edx,bh
cmp eax,edx
jg gk1
test ebx,0x010000
jnz gk3
mov cx,0x1000
mov dx,cx
add eax,47
mov cx,ax
cmp cx,58
jb gk_nozero
sub cx,10
gk_nozero:
mov [ds:keyin-0x10000],cl
mov si,keyin-0x10000
call printplain
gk3:
sub eax,48
pop edx
pop ecx
ret
;=========================================================================
;
; 16 BIT CODE
;
;=========================================================================
start_of_code:
; RESET 16 BIT SELECTORS/REGISTERS/STACK
mov ax,0x1000
mov es,ax
mov ds,ax
mov ax,0x3000
mov ss,ax
mov sp,0xec00
xor ax,ax
xor bx,bx
xor cx,cx
xor dx,dx
xor si,si
xor di,di
xor bp,bp
; DRAW FRAMES
call setbase1000
cmp byte [es:display_atboot-0x10000],2
je no_mode_atboot
mov ax,0x0003
mov bx,0x0000
mov dx,0x0000
int 0x10
no_mode_atboot:
; Load & set russian VGA font (RU.INC)
mov bp,RU_FNT1-10000h ; RU_FNT1 - First part
mov bx,1000h ; 768 bytes
mov cx,30h ; 48 symbols
mov dx,80h ; 128 - position of first symbol
mov ax,1100h
push cs
pop es
int 10h
mov bp,RU_FNT2-10000h ; RU_FNT2 -Second part
mov bx,1000h ; 512 bytes
mov cx,20h ; 32 symbols
mov dx,0E0h ; 224 - position of first symbol
mov ax,1100h
push cs
pop es
int 10h
; End set VGA russian font
call setbase1000
mov ax,0xb800
mov es,ax
mov di,0
mov si,d80x25-0x10000
mov cx,80*25
mov ah,1*16+15
dfl1:
cld
lodsb
stosw
loop dfl1
call setbase1000
; SAY HI TO USER
mov si,linef2-0x10000
call printplain
mov si,version-0x10000
call print
; TEST FOR 386+
pushf
pop ax
mov dx,ax
xor ax,0x4000
push ax
popf
pushf
pop ax
and ax,0x4000
and dx,0x4000
cmp ax,dx
jnz cpugood
mov si,not386-0x10000
call print
jmp $
cpugood:
; RESET 32 BIT SELECTORS/REGISTERS/SELECTORS
mov ax,0x1000
mov es,ax
mov ds,ax
mov ax,0x3000
mov ss,ax
mov esp,0xec00
xor eax,eax
xor ebx,ebx
xor ecx,ecx
xor edx,edx
xor esi,esi
xor edi,edi
xor ebp,ebp
; FLUSH 8042 KEYBOARD CONTROLLER
;// mike.dld [
; mov al,0xED
; out 0x60,al
; or cx,-1
; @@:
; in al,0x64
; test al,2
; jz @f
; loop @b
; @@:
; mov al,0
; out 0x60,al
; or cx,-1
; @@:
; in al,0x64
; test al,2
; jz @f
; loop @b
; @@:
;// mike.dld ]
; mov ecx,10000
; fl1:
; in al,0x64
; loop fl1
; test al,1
; jz fl2
; in al,0x60
; jmp fl1
; fl2:
;****************************************************************
; The function is modified Mario79
;*****************************************************************
; wait_kbd: ; variant 1
; mov cx,2500h ;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 10 <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; test_kbd:
; in al,64h ;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; test al,2 ;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; loopnz test_kbd
mov al,0xf6 ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
out 0x60,al
mov cx,0
wait_loop: ; variant 2
; reading state of port of 8042 controller
in al,64h
and al,00000010b ; ready flag
; wait until 8042 controller is ready
loopnz wait_loop
; DISPLAY VESA INFORMATION
mov ax,0x0
mov es,ax
mov ax,0x4f00
mov di,0xa000
int 0x10
cmp ax,0x004f
je vesaok2
mov dx,0x1000
mov es,dx
mov si,novesa-0x10000
call print
mov ax,16
jmp novesafound
vesaok2:
mov ax,[es:di+4]
mov dx,ax
add ax,'0'*256+'0'
push word 0x1000
pop es
mov [es:vervesa+vervesa_off-0x10000], ah
mov [es:vervesa+vervesa_off+2-0x10000], al
; ivan 24/11/2004 begin
;push ax
; ivan 24/11/2004 end
mov si,vervesa-0x10000
call print
novesafound:
call setbase1000
; ivan 24/11/2004 begin
;pop bx
; ivan 24/11/2004 end
; ASK GRAPHICS MODE
movzx eax,byte [es:preboot_graph-0x10000]
cmp eax,0
jne pre_graph
mov si,gr_mode-0x10000
call printplain
gml0:
mov ebx,0x0A01
call getkey
pre_graph:
cmp eax,1
jl sgml1
cmp eax,8
jg sgml1
mov si,ax
sub si,1
shl si,4
add si,gr_table-0x10000
mov bx,[es:si+0]
mov cx,[es:si+4]
mov dx,[es:si+8]
jmp gml10
sgml1:
cmp al,9
jnz gml00
mov bx,0x13
mov cx,640
mov dx,480
push word 0x0
pop es
mov [es:0x9000],byte 32
mov dword [es:0x9018],0x800000
push word 0x1000
pop es
jmp gml10
gml00:
cmp al,0xa
jnz gml02
mov bx,0x12
mov cx,640
mov dx,480
push word 0x0
pop es
mov [es:0x9000],byte 32
mov dword [es:0x9018],0x800000
push word 0x1000
pop es
jmp gml10
gml02:
jmp gml0
gr_table:
dd 0x112+0100000000000000b , 640 , 480 , 0
dd 0x115+0100000000000000b , 800 , 600 , 0
dd 0x118+0100000000000000b , 1024 , 768 , 0
dd 0x11B+0100000000000000b , 1280 , 1024 , 0
dd 0x112 , 640 , 480 , 0
dd 0x115 , 800 , 600 , 0
dd 0x118 , 1024 , 768 , 0
dd 0x11B , 1280 ,1024 , 0
gml10:
push word 0x0000
pop es
mov [es:0x9008],bx
mov [es:0x900A],cx
mov [es:0x900C],dx
push word 0x1000
pop es
mov ax,32
cmp bx,0x13
je nov
cmp bx,0x12
je nov
; USE DEFAULTS OR PROBE
; bx - mode : cx - x size : dx - y size
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
movzx ax,[es:preboot_gprobe-0x10000]
test ax,ax
jne pre_probe
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
test bx,0100000000000000b
jz noprobe
mov si,probetext-0x10000
call printplain
push bx
mov ebx,0x0201
call getkey
pop bx
pre_probe:
cmp ax,1
je noprobe
push cx dx
mov bx,0x100
newprobe:
inc bx
cmp bx,0x17f
jne probemore
mov si,prnotfnd-0x10000
call printplain
jmp $
probemore:
mov ax,0x4f01
mov cx,bx
and cx,0xfff
push word 0x0000
pop es
mov di,0xa000
int 0x10
mov eax,[es:di] ; lfb ?
test eax,10000000b
jz newprobe
mov eax,[es:di+0x12] ; x size ?
cmp ax,word [esp+2]
jne newprobe
mov eax,[es:di+0x14] ; y size ?
cmp ax,dx
jne newprobe
movzx eax,byte [es:di+0x19]
cmp eax,32 ;24
jb newprobe
push word 0x0000 ; save probed mode
pop es
add bx,0100000000000000b
mov [es:0x9008],bx
push word 0x1000
pop es
push bx
mov si,prid-0x10000
call printplain
pop bx dx cx
noprobe:
; FIND VESA 2.0 LFB & BPP
mov ax,0x4f01
mov cx,bx
and cx,0xfff
push word 0x0000
pop es
mov di,0xa000
int 0x10
; LFB
mov ecx,[es:di+0x28]
mov [es:0x9018],ecx
; BPP
movzx ax,byte [es:di+0x19]
mov [es:0x9000],ax
; ---- vbe voodoo
BytesPerScanLine equ 0x10
push ax
mov ax, [es:di+BytesPerScanLine]
mov [es:0x9001],ax
pop ax
; -----
nov:
cmp ax,24
jnz nbpp24
mov si,bt24-0x10000
jmp bppl
nbpp24:
cmp ax,32
jnz nbpp32
mov si,bt32-0x10000
jmp bppl
nbpp32:
mov si,btns-0x10000
call print
jmp $
bppl:
call printplain
; FIND VESA 1.2 PM BANK SWITCH ADDRESS
mov ax,0x4f0A
mov bx,0x0
int 0x10
xor eax,eax
xor ebx,ebx
mov ax,es
shl eax,4
mov bx,di
add eax,ebx
xor ebx,ebx
mov bx,[es:di]
add eax,ebx
push word 0x0
pop es
mov [es:0x9014],eax
push word 0x1000
pop es
; GRAPHICS ACCELERATION
mov al, [es:preboot_mtrr-0x10000]
test al,al
jne pre_mtrr
mov si,gr_acc-0x10000
call printplain
mov ebx,0x0201
call getkey
pre_mtrr:
push word 0x0000
pop es
mov [es:0x901C],al
push word 0x1000
pop es
mov si,linef-0x10000
call printplain
; VRR_M USE
mov al,[es:preboot_vrrm-0x10000]
test al,al
jne pre_vrrm
mov si,vrrmprint-0x10000
call print
mov ebx,0x0301
call getkey
pre_vrrm:
push word 0x0000
pop es
mov [es:0x9030],al
push word 0x1000
pop es
mov si,linef2-0x10000
call printplain
; MEMORY MODEL
; movzx eax,byte [es:preboot_memory-0x10000]
; cmp eax,0
; jne pre_mem
;;;;;;;;;;;;;;;;;;;;;;;;;
; mario79 - memory size ;
;;;;;;;;;;;;;;;;;;;;;;;;;
; mov ax,0E801h
;;; xor bx,bx ; thanks to Alexei for bugfix [18.07.2004]
; xor cx, cx
; xor dx, dx
; int 0x15
; movzx ebx, dx ;bx
; movzx eax, cx ;ax
; shl ebx,6 ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (x64)
; add eax,ebx
; add eax, 1000h ;440h
; cmp eax,40000h ; 256?
; jge mem_256_z
; cmp eax,20000h ; 128?
; jge mem_128_z
; cmp eax,10000h ; 64?
; jge mem_64_z
; cmp eax,8000h ; 32?
; jge mem_32_z
; jmp mem_16_z
;
;mem_256_z: mov si,memokz256-0x10000
; call printplain
; mov eax,5
; jmp pre_mem
;mem_128_z: mov si,memokz128-0x10000
; call printplain
; mov eax,4
; jmp pre_mem
;mem_64_z: mov si,memokz64-0x10000
; call printplain
; mov eax,3
; jmp pre_mem
;mem_32_z: mov si,memokz32-0x10000
; call printplain
; mov eax,2
; jmp pre_mem
;mem_16_z: mov si,memokz16-0x10000
; call printplain
; mov eax,1
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; pre_mem:
; push word 0x0000
; pop es
; mov [es:0x9030],al
; push word 0x1000
; pop es
; mov si,linef-0x10000
; call printplain
; DIRECT WRITE TO LFB, PAGING DISABLED
; movzx eax,byte [es:preboot_lfb-0x10000]
; mov eax,1 ; paging disabled
; cmp eax,0
; jne pre_lfb
; mov si,gr_direct-0x10000
; call printplain
; mov ebx,0x0201
; call getkey
; pre_lfb:
; push word 0x0000
; pop es
; mov [es:0x901E],al
; mov ax,0x1000
; mov es,ax
; mov si,linef-0x10000
; call printplain
push 0
pop es
mov [es:0x901E],byte 1
push 0x1000
pop es
; BOOT DEVICE
movzx eax,byte [es:preboot_device-0x10000]
cmp eax,0
jne pre_device
mov si,bdev-0x10000
call printplain
mov ebx,0x0301
call getkey
pre_device:
dec al
mov [es:boot_dev-0x10000],al
mov si,linef-0x10000
call printplain
; READ DISKETTE TO MEMORY
cmp [boot_dev-0x10000],0
jne no_sys_on_floppy
mov si,diskload-0x10000
call print
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
reads:
pusha
xor si,si
newread:
push word 0x0
pop es
mov bx,0xa000 ; es:bx -> data area
mov ax,0x0200+18 ; read, no of sectors to read
int 0x13
cmp ah,0
jz goodread
add si,1
cmp si,10
jnz newread
mov si,badsect-0x10000
call printplain
jmp $
goodread:
; move -> 1mb
mov si,movedesc-0x10000
push word 0x1000
pop es
mov cx,256*18
mov ah,0x87
int 0x15
cmp ah,0 ; was the move successfull ?
je goodmove
mov dx,0x3f2 ; floppy motor off
mov al,0
out dx,al
mov si,memmovefailed-0x10000
call print
jmp $
goodmove:
mov eax,[es:movedesc-0x10000+0x18+2]
add eax,512*18
mov [es:movedesc-0x10000+0x18+2],eax
popa
inc dh
cmp dh,2
jnz bb2
mov dh,0
inc ch
pusha ; print prosentage
push word 0x1000
pop es
xor eax,eax ; 5
mov al,ch
shr eax,2
and eax,1
mov ebx,5
mul bx
add al,48
mov [es:pros+1-0x10000],al
xor eax,eax ; 10
mov al,ch
shr eax,3
add al,48
mov [es:pros-0x10000],al
mov si,pros-0x10000
call printplain
popa
bb2:
pop ax
dec ax
push ax
cmp ax,0
jnz rs
jmp readdone
rs:
jmp reads
movedesc:
db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0
db 0xff,0xff,0x0,0xa0,0x00,0x93,0x0,0x0
db 0xff,0xff,0x0,0x00,0x10,0x93,0x0,0x0
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
readdone:
pop ax
mov dx,0x3f2 ; floppy motor off
mov al,0
out dx,al
mov si,backspace-0x10000
call printplain
call printplain
mov si,okt-0x10000
call printplain
no_sys_on_floppy:
mov ax,0x0000 ; reset drive
mov dx,0x0000
int 0x13
mov dx,0x3f2 ; floppy motor off
mov al,0
out dx,al
; PAGE TABLE
push word 0x0000
pop es
mov ecx,[es:0x9018]
push ecx
map_mem equ 64 ; amount of memory to map
mov bx,0x6000
mov es,bx ; [es:di] = 6000:0
xor edi,edi
mov ecx,256*map_mem ; Map (mapmem) M
mov eax,7
cld
pt2:
cmp ecx,256*(map_mem-8) ; 8 M map to LFB
jnz pt3
pop eax
add eax,7
pt3:
cmp ecx,256*(map_mem-12) ; 12 M back to linear = physical
jnz pt4
mov eax,12*0x100000 + 7
pt4:
stosd
add eax,4096
loop pt2
mov bx,0x7100
mov es,bx
xor edi,edi
mov eax,8*0x100000+7
mov ecx,256*4
pt5:
stosd
add eax,0x1000
loop pt5
; 4 KB PAGE DIRECTORY
mov bx , 0x7F00
mov es , bx ; [es:di] = 7000:0
xor edi, edi
mov ecx, 64 / 4
mov eax, 0x60007 ; for 0 M
cld
pd4k:
stosd
add eax, 0x1000
loop pd4k
mov dword [es:0x800],0x71007 ;map region 0x80000000-0x803FFFFF to 0x800000-0xCFFFFF
xor esi,esi
mov edi,second_base_address shr 20
mov ecx,64/4
mov bx,0x7F00
mov ds,bx
rep movsd
mov bx,0x1000
mov ds,bx
mov eax, 0x7F000 +8+16 ; Page directory and enable caches
mov cr3, eax
; SET GRAPHICS
mov dx,0x0000
mov es,dx
mov bx,[es:0x9008]
mov ax,bx ; vga & 320x200
cmp ax,0x13
je setgr
cmp ax,0x12
je setgr
mov ax,0x4f02 ; Vesa
setgr:
int 0x10
cmp ah,0
jz gmok
mov si,fatalsel-0x10000
call print
jmp $
gmok:
mov dx,0x1000
mov es,dx
; set mode 0x12 graphics registers:
cmp bx,0x12
jne gmok2
mov al,0x05
mov dx,0x03ce
out dx,al ; select GDC mode register
mov al,0x02
mov dx,0x03cf
out dx,al ; set write mode 2
mov al,0x02
mov dx,0x03c4
out dx,al ; select VGA sequencer map mask register
mov al,0x0f
mov dx,0x03c5
out dx,al ; set mask for all planes 0-3
mov al,0x08
mov dx,0x03ce
out dx,al ; select GDC bit mask register
; for writes to 0x03cf
gmok2:
mov dx,0x1000
mov es,dx
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