| 0,0 → 1,212 |
|---|
| ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| ;; ;; |
| ;; 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 |
| Property changes: |
|---|
| Added: svn:keywords |
|---|
| +Rev |
|---|
| \ No newline at end of property |
|---|