aabc2/KOS_qrcodes
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* V86 manager

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* support of drives visible by BIOS through V86 mode
* shutdown fixes
* background redraw fixes
* when booting from CD/DVD, load all floppy by tracks, not only used sectors

git-svn-id: svn://kolibrios.org@709 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Evgeny Grechnikov (Diamond)
2008-02-04 15:31:59 +00:00
parent 73451d6086
commit ebeed28881
29 changed files with 2061 additions and 388 deletions
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103
kernel/trunk/boot/bootcode.inc
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@@ -341,7 +341,7 @@ cfgmanager:
; settings:
; a) preboot_graph = graphical mode
; preboot_gprobe = probe this mode?
; b) preboot_dma = use DMA access?
; b) preboot_biosdisk = use BIOS disks through V86 emulation?
; c) preboot_vrrm = use VRR?
; d) preboot_device = from what boot?
mov di, preboot_graph
@@ -381,9 +381,11 @@ cfgmanager:
@@:
mov [di], al
.preboot_gr_end:
; following 6 lines set variables to 1 if its current value is 0
; following 8 lines set variables to 1 if its current value is 0
cmp [di+preboot_dma-preboot_graph], 1
adc [di+preboot_dma-preboot_graph], 0
cmp [di+preboot_biosdisk-preboot_graph], 1
adc [di+preboot_biosdisk-preboot_graph], 0
cmp [di+preboot_vrrm-preboot_graph], 1
adc [di+preboot_vrrm-preboot_graph], 0
cmp [di+preboot_device-preboot_graph], 1
@@ -438,16 +440,19 @@ cfgmanager:
.c:
mov si, linef
call printplain
mov si, dma_msg
call print
cmp [preboot_dma], 2
mov si, on_msg
jb @f
mov si, off_msg
ja @f
mov si, readonly_msg
@@:
call printplain
; mov si, dma_msg
; call print
; cmp [preboot_dma], 2
; mov si, on_msg
; jb @f
; mov si, off_msg
; ja @f
; mov si, readonly_msg
;@@:
; call printplain
mov si, usebd_msg
cmp [preboot_biosdisk], 1
call .say_on_off
mov si, vrrm_msg
cmp [preboot_vrrm], 1
call .say_on_off
@@ -530,11 +535,16 @@ cfgmanager:
jmp .d
.change_b:
_setcursor 15,0
mov si, ask_dma
; mov si, ask_dma
; call print
; mov bx, '13'
; call getkey
; mov [preboot_dma], al
mov si, ask_bd
call print
mov bx, '13'
mov bx, '12'
call getkey
mov [preboot_dma], al
mov [preboot_biosdisk], al
_setcursor 11,0
jmp .d
.change_c:
@@ -817,6 +827,68 @@ bppl:
xor ax, ax ; reset drive
xor dx, dx
int 0x13
; do we boot from CD-ROM?
mov ah, 41h
mov bx, 55AAh
xor dx, dx
int 0x13
jc .nocd
cmp bx, 0AA55h
jnz .nocd
mov ah, 48h
push ds
push es
pop ds
mov si, 0xa000
mov word [si], 30
int 0x13
pop ds
jc .nocd
push ds
lds si, [es:si+26]
test byte [ds:si+10], 40h
pop ds
jz .nocd
; yes - read all floppy by 18 sectors
mov cx, 0x0001 ; startcyl,startsector
.a1:
push cx dx
mov al, 18
mov bx, 0xa000
call boot_read_floppy
mov si, movedesc
push es
push ds
pop es
mov cx, 256*18
mov ah, 0x87
int 0x15
pop es
pop dx cx
test ah, ah
jnz sayerr_floppy
add dword [si+8*3+2], 512*18
inc dh
cmp dh, 2
jnz .a1
mov dh, 0
inc ch
cmp ch, 80
jae ok_sys_on_floppy
pusha
mov al, ch
shr ch, 2
add al, ch
aam
xchg al, ah
add ax, '00'
mov si, pros
mov [si], ax
call printplain
popa
jmp .a1
.nocd:
; no - read only used sectors from floppy
; now load floppy image to memory
; at first load boot sector and first FAT table
mov cx, 0x0001 ; startcyl,startsector
@@ -1007,6 +1079,7 @@ sayerr_floppy:
; readdone:
; pop ax
ok_sys_on_floppy:
mov si, backspace2
call printplain
mov si, okt