forked from KolibriOS/kolibrios
213 lines
6.0 KiB
PHP
213 lines
6.0 KiB
PHP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;; ;;
|
|
;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
|
|
;; Distributed under terms of the GNU General Public License ;;
|
|
;; ;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
$Revision$
|
|
|
|
pusha
|
|
|
|
mov eax, [pg_data.pages_free]
|
|
; 1/32
|
|
shr eax, 5
|
|
; round off up to 8 pages
|
|
shr eax, 3
|
|
shl eax, 3
|
|
; translate pages in butes *4096
|
|
shl eax, 12
|
|
; check a upper size of the cache, no more than 1 Mb on the physical device
|
|
cmp eax, 1024*1024
|
|
jbe @f
|
|
mov eax, 1024*1024
|
|
jmp .continue
|
|
@@:
|
|
; check a lower size of the cache, not less than 128 Kb on the physical device
|
|
cmp eax, 128*1024
|
|
jae @f
|
|
mov eax, 128*1024
|
|
@@:
|
|
.continue:
|
|
mov [cache_ide0_size], eax
|
|
mov [cache_ide1_size], eax
|
|
mov [cache_ide2_size], eax
|
|
mov [cache_ide3_size], eax
|
|
xor eax, eax
|
|
mov [hdd_appl_data], 1;al
|
|
mov [cd_appl_data], 1
|
|
|
|
mov ch, [DRIVE_DATA+1]
|
|
mov cl, ch
|
|
and cl, 11b
|
|
je .ide2
|
|
mov esi, cache_ide3
|
|
call get_cache_ide
|
|
.ide2:
|
|
mov cl, ch
|
|
shr cl, 2
|
|
and cl, 11b
|
|
je .ide1
|
|
mov esi, cache_ide2
|
|
call get_cache_ide
|
|
.ide1:
|
|
mov cl, ch
|
|
shr cl, 4
|
|
and cl, 11b
|
|
je .ide0
|
|
mov esi, cache_ide1
|
|
call get_cache_ide
|
|
.ide0:
|
|
mov cl, ch
|
|
shr cl, 6
|
|
and cl, 11b
|
|
je @f
|
|
mov esi, cache_ide0
|
|
call get_cache_ide
|
|
@@:
|
|
xor ecx, ecx
|
|
cmp [NumBiosDisks], ecx
|
|
jz .endbd
|
|
mov esi, BiosDiskCaches
|
|
.loopbd:
|
|
push ecx
|
|
movsx ecx, byte [BiosDisksData+ecx*4+2]
|
|
inc ecx
|
|
jz .getbd
|
|
add ecx, ecx
|
|
movzx eax, byte [DRIVE_DATA+1]
|
|
shl eax, cl
|
|
and ah, 3
|
|
cmp ah, 1
|
|
jz .contbd
|
|
pop ecx
|
|
mov byte [BiosDisksData+ecx*4+2], -1
|
|
push ecx
|
|
.getbd:
|
|
mov eax, [cache_ide0_size]
|
|
mov [esi+cache_ide0_size-cache_ide0], eax
|
|
mov cl, 1
|
|
call get_cache_ide
|
|
.contbd:
|
|
pop ecx
|
|
add esi, cache_ide1-cache_ide0
|
|
inc ecx
|
|
cmp ecx, [NumBiosDisks]
|
|
jb .loopbd
|
|
.endbd:
|
|
jmp end_get_cache
|
|
|
|
get_cache_ide:
|
|
and [esi+cache_ide0_search_start-cache_ide0], 0
|
|
and [esi+cache_ide0_appl_search_start-cache_ide0], 0
|
|
push ecx
|
|
stdcall kernel_alloc, [esi+cache_ide0_size-cache_ide0]
|
|
mov [esi+cache_ide0_pointer-cache_ide0], eax
|
|
pop ecx
|
|
mov edx, eax
|
|
mov eax, [esi+cache_ide0_size-cache_ide0]
|
|
shr eax, 3
|
|
mov [esi+cache_ide0_system_data_size-cache_ide0], eax
|
|
mov ebx, eax
|
|
imul eax, 7
|
|
mov [esi+cache_ide0_appl_data_size-cache_ide0], eax
|
|
add ebx, edx
|
|
mov [esi+cache_ide0_data_pointer-cache_ide0], ebx
|
|
|
|
cmp cl, 10b
|
|
je .cd
|
|
push ecx
|
|
mov eax, [esi+cache_ide0_system_data_size-cache_ide0]
|
|
call calculate_for_hd
|
|
add eax, [esi+cache_ide0_pointer-cache_ide0]
|
|
mov [esi+cache_ide0_system_data-cache_ide0], eax
|
|
mov [esi+cache_ide0_system_sad_size-cache_ide0], ecx
|
|
|
|
push edi
|
|
mov edi, [esi+cache_ide0_pointer-cache_ide0]
|
|
call clear_ide_cache
|
|
pop edi
|
|
|
|
mov eax, [esi+cache_ide0_appl_data_size-cache_ide0]
|
|
call calculate_for_hd
|
|
add eax, [esi+cache_ide0_data_pointer-cache_ide0]
|
|
mov [esi+cache_ide0_appl_data-cache_ide0], eax
|
|
mov [esi+cache_ide0_appl_sad_size-cache_ide0], ecx
|
|
|
|
push edi
|
|
mov edi, [esi+cache_ide0_data_pointer-cache_ide0]
|
|
call clear_ide_cache
|
|
pop edi
|
|
|
|
pop ecx
|
|
ret
|
|
.cd:
|
|
push ecx
|
|
mov eax, [esi+cache_ide0_system_data_size-cache_ide0]
|
|
call calculate_for_cd
|
|
add eax, [esi+cache_ide0_pointer-cache_ide0]
|
|
mov [esi+cache_ide0_system_data-cache_ide0], eax
|
|
mov [esi+cache_ide0_system_sad_size-cache_ide0], ecx
|
|
|
|
push edi
|
|
mov edi, [esi+cache_ide0_pointer-cache_ide0]
|
|
call clear_ide_cache
|
|
pop edi
|
|
|
|
mov eax, [esi+cache_ide0_appl_data_size-cache_ide0]
|
|
call calculate_for_cd
|
|
add eax, [esi+cache_ide0_data_pointer-cache_ide0]
|
|
mov [esi+cache_ide0_appl_data-cache_ide0], eax
|
|
mov [esi+cache_ide0_appl_sad_size-cache_ide0], ecx
|
|
|
|
push edi
|
|
mov edi, [esi+cache_ide0_data_pointer-cache_ide0]
|
|
call clear_ide_cache
|
|
pop edi
|
|
|
|
pop ecx
|
|
ret
|
|
|
|
calculate_for_hd:
|
|
push eax
|
|
mov ebx, eax
|
|
shr eax, 9
|
|
shl eax, 3
|
|
sub ebx, eax
|
|
shr ebx, 9
|
|
mov ecx, ebx
|
|
shl ebx, 9
|
|
pop eax
|
|
sub eax, ebx
|
|
dec ecx
|
|
ret
|
|
|
|
calculate_for_cd:
|
|
push eax
|
|
mov ebx, eax
|
|
shr eax, 11
|
|
shl eax, 3
|
|
sub ebx, eax
|
|
shr ebx, 11
|
|
mov ecx, ebx
|
|
shl ebx, 11
|
|
pop eax
|
|
sub eax, ebx
|
|
dec ecx
|
|
ret
|
|
|
|
clear_ide_cache:
|
|
push eax
|
|
shl ecx, 1
|
|
xor eax, eax
|
|
cld
|
|
rep stosd
|
|
pop eax
|
|
ret
|
|
|
|
end_get_cache:
|
|
; mov [cache_ide0_pointer],HD_CACHE
|
|
; mov [cache_ide0_system_data],HD_CACHE+65536
|
|
; mov [cache_ide0_system_sad_size],1919
|
|
popa
|