WebSVN – Kolibri OS – Blame – /kernel/trunk/blkdev/ide_cache.inc

Rev	Author	Line No.	Line
2288	clevermous	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
		3	;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
		4	;; Distributed under terms of the GNU General Public License ;;
		5	;; ;;
		6	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		7
		8	;**************************************************************************
		9	;
		10	; [cache_ide[X]_pointer]
		11	; or [cache_ide[X]_data_pointer] first entry in cache list
		12	;
		13	; +0 - lba sector
		14	; +4 - state of cache sector
		15	; 0 = empty
		16	; 1 = used for read ( same as in hd )
		17	; 2 = used for write ( differs from hd )
		18	;
		19	; [cache_ide[X]_system_data]
		20	; or [cache_ide[x]_appl_data] - cache entries
		21	;
		22	;**************************************************************************
		23
		24	$Revision: 2288 $
		25
		26
		27	align 4
		28	write_cache:
		29	;-----------------------------------------------------------
		30	; write all changed sectors to disk
		31	;-----------------------------------------------------------
		32	push eax ecx edx esi edi
		33
		34	; write difference ( 2 ) from cache to hd
		35	call calculate_cache
		36	add esi, 8
		37	mov edi, 1
		38	write_cache_more:
		39	cmp dword [esi+4], 2; if cache slot is not different
		40	jne .write_chain
		41	mov dword [esi+4], 1; same as in hd
		42	mov eax, [esi] ; eax = sector to write
		43	cmp eax, [PARTITION_START]
		44	jb danger
		45	cmp eax, [PARTITION_END]
		46	ja danger
		47	cmp [hdpos], 0x80
		48	jae @f
		49	; DMA write is permitted only if [allow_dma_access]=1
		50	cmp [allow_dma_access], 2
		51	jae .nodma
		52	cmp [dma_hdd], 1
		53	jnz .nodma
		54	@@:
		55	; ��ꥤ��塞 �� 楯�窨 ��᫥��⥫�� ᥪ�஢ � �� 饭��
		56	cmp ecx, 1
		57	jz .nonext
		58	cmp dword [esi+8+4], 2
		59	jnz .nonext
		60	push eax
		61	inc eax
		62	cmp eax, [esi+8]
		63	pop eax
		64	jnz .nonext
		65	cmp [cache_chain_started], 1
		66	jz @f
		67	mov [cache_chain_started], 1
		68	mov [cache_chain_size], 0
		69	mov [cache_chain_pos], edi
		70	mov [cache_chain_ptr], esi
		71	@@:
		72	inc [cache_chain_size]
		73	cmp [cache_chain_size], 16
		74	jnz .continue
		75	jmp .write_chain
		76	.nonext:
		77	call flush_cache_chain
		78	mov [cache_chain_size], 1
		79	mov [cache_chain_ptr], esi
		80	call write_cache_sector
		81	jmp .continue
		82	.nodma:
		83	call cache_write_pio
		84	.write_chain:
		85	call flush_cache_chain
		86	.continue:
		87	danger:
		88	add esi, 8
		89	inc edi
		90	dec ecx
		91	jnz write_cache_more
		92	call flush_cache_chain
		93	return_02:
		94	pop edi esi edx ecx eax
		95	ret
		96
		97	flush_cache_chain:
		98	cmp [cache_chain_started], 0
		99	jz @f
		100	call write_cache_chain
		101	mov [cache_chain_started], 0
		102	@@:
		103	ret
		104	;--------------------------------------------------------------------
		105	align 4
		106	find_empty_slot:
		107	;-----------------------------------------------------------
		108	; find empty or read slot, flush cache if next 10% is used by write
		109	; output : edi = cache slot
		110	;-----------------------------------------------------------
		111	; push ecx esi
		112
		113	search_again:
		114	call calculate_cache_3
		115	shr ecx, 3
		116	search_for_empty:
		117	inc edi
		118	call calculate_cache_4
		119	jbe inside_cache
		120	mov edi, 1
		121	inside_cache:
		122	push esi
		123	call calculate_cache_1
		124	cmp dword [edi*8+esi+4], 2
		125	pop esi
		126	jb found_slot ; it's empty or read
		127	dec ecx
		128	jnz search_for_empty
		129	call write_cache ; no empty slots found, write all
		130	cmp [hd_error], 0
		131	jne found_slot_access_denied
		132	jmp search_again ; and start again
		133	found_slot:
		134	call calculate_cache_5
		135	found_slot_access_denied:
		136	ret
		137	;--------------------------------------------------------------------
		138	align 4
		139	clear_hd_cache:
		140	mov [fat_in_cache], -1
		141	mov [fat_change], 0
		142	ret
		143	;--------------------------------------------------------------------
		144	align 4
		145	calculate_cache:
		146	; mov ecx,cache_max ; entries in cache
		147	; mov esi,HD_CACHE+8
		148
		149	; 1 - IDE0 ... 4 - IDE3
		150	.ide0:
		151	cmp [hdpos], 1
		152	jne .ide1
		153	cmp [hdd_appl_data], 0
		154	jne .ide0_appl_data
		155	mov ecx, [cache_ide0_system_sad_size]
		156	mov esi, [cache_ide0_pointer]
		157	ret
		158	.ide0_appl_data:
		159	mov ecx, [cache_ide0_appl_sad_size]
		160	mov esi, [cache_ide0_data_pointer]
		161	ret
		162	.ide1:
		163	cmp [hdpos], 2
		164	jne .ide2
		165	cmp [hdd_appl_data], 0
		166	jne .ide1_appl_data
		167	mov ecx, [cache_ide1_system_sad_size]
		168	mov esi, [cache_ide1_pointer]
		169	ret
		170	.ide1_appl_data:
		171	mov ecx, [cache_ide1_appl_sad_size]
		172	mov esi, [cache_ide1_data_pointer]
		173	ret
		174	.ide2:
		175	cmp [hdpos], 3
		176	jne .ide3
		177	cmp [hdd_appl_data], 0
		178	jne .ide2_appl_data
		179	mov ecx, [cache_ide2_system_sad_size]
		180	mov esi, [cache_ide2_pointer]
		181	ret
		182	.ide2_appl_data:
		183	mov ecx, [cache_ide2_appl_sad_size]
		184	mov esi, [cache_ide2_data_pointer]
		185	ret
		186	.ide3:
		187	cmp [hdpos], 4
		188	jne .noide
		189	cmp [hdd_appl_data], 0
		190	jne .ide3_appl_data
		191	mov ecx, [cache_ide3_system_sad_size]
		192	mov esi, [cache_ide3_pointer]
		193	ret
		194	.ide3_appl_data:
		195	mov ecx, [cache_ide3_appl_sad_size]
		196	mov esi, [cache_ide3_data_pointer]
		197	ret
		198	.noide:
		199	push eax
		200	mov eax, [hdpos]
		201	sub eax, 80h
		202	cmp byte [BiosDisksData+eax*4+2], -1
		203	jz @f
		204	movzx eax, byte [BiosDisksData+eax*4+2]
		205	imul eax, cache_ide1-cache_ide0
		206	add eax, cache_ide0
		207	jmp .get
		208	@@:
		209	imul eax, cache_ide1-cache_ide0
		210	add eax, BiosDiskCaches
		211	.get:
		212	cmp [hdd_appl_data], 0
		213	jne .bd_appl_data
		214	mov ecx, [cache_ide0_system_sad_size-cache_ide0+eax]
		215	mov esi, [cache_ide0_pointer-cache_ide0+eax]
		216	pop eax
		217	ret
		218	.bd_appl_data:
		219	mov ecx, [cache_ide0_appl_sad_size-cache_ide0+eax]
		220	mov esi, [cache_ide0_data_pointer-cache_ide0+eax]
		221	pop eax
		222	ret
		223	;--------------------------------------------------------------------
		224	align 4
		225	calculate_cache_1:
		226	; lea esi,[edi*8+HD_CACHE]
		227	; 1 - IDE0 ... 4 - IDE3
		228	.ide0:
		229	cmp [hdpos], 1
		230	jne .ide1
		231	cmp [hdd_appl_data], 0
		232	jne .ide0_appl_data
		233	mov esi, [cache_ide0_pointer]
		234	ret
		235	.ide0_appl_data:
		236	mov esi, [cache_ide0_data_pointer]
		237	ret
		238	.ide1:
		239	cmp [hdpos], 2
		240	jne .ide2
		241	cmp [hdd_appl_data], 0
		242	jne .ide1_appl_data
		243	mov esi, [cache_ide1_pointer]
		244	ret
		245	.ide1_appl_data:
		246	mov esi, [cache_ide1_data_pointer]
		247	ret
		248	.ide2:
		249	cmp [hdpos], 3
		250	jne .ide3
		251	cmp [hdd_appl_data], 0
		252	jne .ide2_appl_data
		253	mov esi, [cache_ide2_pointer]
		254	ret
		255	.ide2_appl_data:
		256	mov esi, [cache_ide2_data_pointer]
		257	ret
		258	.ide3:
		259	cmp [hdpos], 4
		260	jne .noide
		261	cmp [hdd_appl_data], 0
		262	jne .ide3_appl_data
		263	mov esi, [cache_ide3_pointer]
		264	ret
		265	.ide3_appl_data:
		266	mov esi, [cache_ide3_data_pointer]
		267	ret
		268	.noide:
		269	push eax
		270	mov eax, [hdpos]
		271	sub eax, 80h
		272	cmp byte [BiosDisksData+eax*4+2], -1
		273	jz @f
		274	movzx eax, byte [BiosDisksData+eax*4+2]
		275	imul eax, cache_ide1-cache_ide0
		276	add eax, cache_ide0
		277	jmp .get
		278	@@:
		279	imul eax, cache_ide1-cache_ide0
		280	add eax, BiosDiskCaches
		281	.get:
		282	cmp [hdd_appl_data], 0
		283	jne .bd_appl_data
		284	mov esi, [cache_ide0_pointer-cache_ide0+eax]
		285	pop eax
		286	ret
		287	.bd_appl_data:
		288	mov esi, [cache_ide0_data_pointer-cache_ide0+eax]
		289	pop eax
		290	ret
		291
		292	;--------------------------------------------------------------------
		293	align 4
		294	calculate_cache_2:
		295	; add esi,HD_CACHE+65536
		296	; 1 - IDE0 ... 4 - IDE3
		297	.ide0:
		298	cmp [hdpos], 1
		299	jne .ide1
		300	cmp [hdd_appl_data], 0
		301	jne .ide0_appl_data
		302	mov eax, [cache_ide0_system_data]
		303	ret
		304	.ide0_appl_data:
		305	mov eax, [cache_ide0_appl_data]
		306	ret
		307	.ide1:
		308	cmp [hdpos], 2
		309	jne .ide2
		310	cmp [hdd_appl_data], 0
		311	jne .ide1_appl_data
		312	mov eax, [cache_ide1_system_data]
		313	ret
		314	.ide1_appl_data:
		315	mov eax, [cache_ide1_appl_data]
		316	ret
		317	.ide2:
		318	cmp [hdpos], 3
		319	jne .ide3
		320	cmp [hdd_appl_data], 0
		321	jne .ide2_appl_data
		322	mov eax, [cache_ide2_system_data]
		323	ret
		324	.ide2_appl_data:
		325	mov eax, [cache_ide2_appl_data]
		326	ret
		327	.ide3:
		328	cmp [hdpos], 4
		329	jne .noide
		330	cmp [hdd_appl_data], 0
		331	jne .ide3_appl_data
		332	mov eax, [cache_ide3_system_data]
		333	ret
		334	.ide3_appl_data:
		335	mov eax, [cache_ide3_appl_data]
		336	ret
		337	.noide:
		338	mov eax, [hdpos]
		339	sub eax, 80h
		340	cmp byte [BiosDisksData+eax*4+2], -1
		341	jz @f
		342	movzx eax, byte [BiosDisksData+eax*4+2]
		343	imul eax, cache_ide1-cache_ide0
		344	add eax, cache_ide0
		345	jmp .get
		346	@@:
		347	imul eax, cache_ide1-cache_ide0
		348	add eax, BiosDiskCaches
		349	.get:
		350	cmp [hdd_appl_data], 0
		351	jne .bd_appl_data
		352	mov eax, [cache_ide0_system_data-cache_ide0+eax]
		353	ret
		354	.bd_appl_data:
		355	mov eax, [cache_ide0_appl_data-cache_ide0+eax]
		356	ret
		357	;--------------------------------------------------------------------
		358	align 4
		359	calculate_cache_3:
		360	; mov ecx,cache_max*10/100
		361	; mov edi,[cache_search_start]
		362
		363	; 1 - IDE0 ... 4 - IDE3
		364	.ide0:
		365	cmp [hdpos], 1
		366	jne .ide1
		367	cmp [hdd_appl_data], 0
		368	jne .ide0_appl_data
		369	mov ecx, [cache_ide0_system_sad_size]
		370	mov edi, [cache_ide0_search_start]
		371	ret
		372	.ide0_appl_data:
		373	mov ecx, [cache_ide0_appl_sad_size]
		374	mov edi, [cache_ide0_appl_search_start]
		375	ret
		376	.ide1:
		377	cmp [hdpos], 2
		378	jne .ide2
		379	cmp [hdd_appl_data], 0
		380	jne .ide1_appl_data
		381	mov ecx, [cache_ide1_system_sad_size]
		382	mov edi, [cache_ide1_search_start]
		383	ret
		384	.ide1_appl_data:
		385	mov ecx, [cache_ide1_appl_sad_size]
		386	mov edi, [cache_ide1_appl_search_start]
		387	ret
		388	.ide2:
		389	cmp [hdpos], 3
		390	jne .ide3
		391	cmp [hdd_appl_data], 0
		392	jne .ide2_appl_data
		393	mov ecx, [cache_ide2_system_sad_size]
		394	mov edi, [cache_ide2_search_start]
		395	ret
		396	.ide2_appl_data:
		397	mov ecx, [cache_ide2_appl_sad_size]
		398	mov edi, [cache_ide2_appl_search_start]
		399	ret
		400	.ide3:
		401	cmp [hdpos], 4
		402	jne .noide
		403	cmp [hdd_appl_data], 0
		404	jne .ide3_appl_data
		405	mov ecx, [cache_ide3_system_sad_size]
		406	mov edi, [cache_ide3_search_start]
		407	ret
		408	.ide3_appl_data:
		409	mov ecx, [cache_ide3_appl_sad_size]
		410	mov edi, [cache_ide3_appl_search_start]
		411	ret
		412	.noide:
		413	push eax
		414	mov eax, [hdpos]
		415	sub eax, 80h
		416	cmp byte [BiosDisksData+eax*4+2], -1
		417	jz @f
		418	movzx eax, byte [BiosDisksData+eax*4+2]
		419	imul eax, cache_ide1-cache_ide0
		420	add eax, cache_ide0
		421	jmp .get
		422	@@:
		423	imul eax, cache_ide1-cache_ide0
		424	add eax, BiosDiskCaches
		425	.get:
		426	cmp [hdd_appl_data], 0
		427	jne .bd_appl_data
		428	mov ecx, [cache_ide0_system_sad_size-cache_ide0+eax]
		429	mov edi, [cache_ide0_search_start-cache_ide0+eax]
		430	pop eax
		431	ret
		432	.bd_appl_data:
		433	mov ecx, [cache_ide0_appl_sad_size-cache_ide0+eax]
		434	mov edi, [cache_ide0_appl_search_start-cache_ide0+eax]
		435	pop eax
		436	ret
		437	;--------------------------------------------------------------------
		438	align 4
		439	calculate_cache_4:
		440	; cmp edi,cache_max
		441	; 1 - IDE0 ... 4 - IDE3
		442	.ide0:
		443	cmp [hdpos], 1
		444	jne .ide1
		445	cmp [hdd_appl_data], 0
		446	jne .ide0_appl_data
		447	cmp edi, [cache_ide0_system_sad_size]
		448	ret
		449	.ide0_appl_data:
		450	cmp edi, [cache_ide0_appl_sad_size]
		451	ret
		452	.ide1:
		453	cmp [hdpos], 2
		454	jne .ide2
		455	cmp [hdd_appl_data], 0
		456	jne .ide1_appl_data
		457	cmp edi, [cache_ide1_system_sad_size]
		458	ret
		459	.ide1_appl_data:
		460	cmp edi, [cache_ide1_appl_sad_size]
		461	ret
		462	.ide2:
		463	cmp [hdpos], 3
		464	jne .ide3
		465	cmp [hdd_appl_data], 0
		466	jne .ide2_appl_data
		467	cmp edi, [cache_ide2_system_sad_size]
		468	ret
		469	.ide2_appl_data:
		470	cmp edi, [cache_ide2_appl_sad_size]
		471	ret
		472	.ide3:
		473	cmp [hdpos], 4
		474	jne .noide
		475	cmp [hdd_appl_data], 0
		476	jne .ide3_appl_data
		477	cmp edi, [cache_ide3_system_sad_size]
		478	ret
		479	.ide3_appl_data:
		480	cmp edi, [cache_ide3_appl_sad_size]
		481	ret
		482	.noide:
		483	push eax
		484	mov eax, [hdpos]
		485	sub eax, 80h
		486	cmp byte [BiosDisksData+eax*4+2], -1
		487	jz @f
		488	movzx eax, byte [BiosDisksData+eax*4+2]
		489	imul eax, cache_ide1-cache_ide0
		490	add eax, cache_ide0
		491	jmp .get
		492	@@:
		493	imul eax, cache_ide1-cache_ide0
		494	add eax, BiosDiskCaches
		495	.get:
		496	cmp [hdd_appl_data], 0
		497	jne .bd_appl_data
		498	cmp edi, [cache_ide0_system_sad_size-cache_ide0+eax]
		499	pop eax
		500	ret
		501	.bd_appl_data:
		502	cmp edi, [cache_ide0_appl_sad_size-cache_ide0+eax]
		503	pop eax
		504	ret
		505
		506	;--------------------------------------------------------------------
		507	align 4
		508	calculate_cache_5:
		509	; mov [cache_search_start],edi
		510	; 1 - IDE0 ... 4 - IDE3
		511	.ide0:
		512	cmp [hdpos], 1
		513	jne .ide1
		514	cmp [hdd_appl_data], 0
		515	jne .ide0_appl_data
		516	mov [cache_ide0_search_start], edi
		517	ret
		518	.ide0_appl_data:
		519	mov [cache_ide0_appl_search_start], edi
		520	ret
		521	.ide1:
		522	cmp [hdpos], 2
		523	jne .ide2
		524	cmp [hdd_appl_data], 0
		525	jne .ide1_appl_data
		526	mov [cache_ide1_search_start], edi
		527	ret
		528	.ide1_appl_data:
		529	mov [cache_ide1_appl_search_start], edi
		530	ret
		531	.ide2:
		532	cmp [hdpos], 3
		533	jne .ide3
		534	cmp [hdd_appl_data], 0
		535	jne .ide2_appl_data
		536	mov [cache_ide2_search_start], edi
		537	ret
		538	.ide2_appl_data:
		539	mov [cache_ide2_appl_search_start], edi
		540	ret
		541	.ide3:
		542	cmp [hdpos], 4
		543	jne .noide
		544	cmp [hdd_appl_data], 0
		545	jne .ide3_appl_data
		546	mov [cache_ide3_search_start], edi
		547	ret
		548	.ide3_appl_data:
		549	mov [cache_ide3_appl_search_start], edi
		550	ret
		551	.noide:
		552	push eax
		553	mov eax, [hdpos]
		554	sub eax, 80h
		555	cmp byte [BiosDisksData+eax*4+2], -1
		556	jz @f
		557	movzx eax, byte [BiosDisksData+eax*4+2]
		558	imul eax, cache_ide1-cache_ide0
		559	add eax, cache_ide0
		560	jmp .get
		561	@@:
		562	imul eax, cache_ide1-cache_ide0
		563	add eax, BiosDiskCaches
		564	.get:
		565	cmp [hdd_appl_data], 0
		566	jne .bd_appl_data
		567	mov [cache_ide0_search_start-cache_ide0+eax], edi
		568	pop eax
		569	ret
		570	.bd_appl_data:
		571	mov [cache_ide0_appl_search_start-cache_ide0+eax], edi
		572	pop eax
		573	ret
		574
		575	;--------------------------------------------------------------------
		576	align 4
		577	find_empty_slot_CD_cache:
		578	;-----------------------------------------------------------
		579	; find empty or read slot, flush cache if next 10% is used by write
		580	; output : edi = cache slot
		581	;-----------------------------------------------------------
		582	.search_again:
		583	call cd_calculate_cache_3
		584	.search_for_empty:
		585	inc edi
		586	call cd_calculate_cache_4
		587	jbe .inside_cache
		588	mov edi, 1
		589	.inside_cache:
		590	call cd_calculate_cache_5
		591	ret
		592	;--------------------------------------------------------------------
		593	clear_CD_cache:
		594	pusha
		595	.ide0:
		596	xor eax, eax
		597	cmp [cdpos], 1
		598	jne .ide1
		599	mov [cache_ide0_search_start], eax
		600	mov ecx, [cache_ide0_system_sad_size]
		601	mov edi, [cache_ide0_pointer]
		602	call .clear
		603	mov [cache_ide0_appl_search_start], eax
		604	mov ecx, [cache_ide0_appl_sad_size]
		605	mov edi, [cache_ide0_data_pointer]
		606	jmp .continue
		607	.ide1:
		608	cmp [cdpos], 2
		609	jne .ide2
		610	mov [cache_ide1_search_start], eax
		611	mov ecx, [cache_ide1_system_sad_size]
		612	mov edi, [cache_ide1_pointer]
		613	call .clear
		614	mov [cache_ide1_appl_search_start], eax
		615	mov ecx, [cache_ide1_appl_sad_size]
		616	mov edi, [cache_ide1_data_pointer]
		617	jmp .continue
		618	.ide2:
		619	cmp [cdpos], 3
		620	jne .ide3
		621	mov [cache_ide2_search_start], eax
		622	mov ecx, [cache_ide2_system_sad_size]
		623	mov edi, [cache_ide2_pointer]
		624	call .clear
		625	mov [cache_ide2_appl_search_start], eax
		626	mov ecx, [cache_ide2_appl_sad_size]
		627	mov edi, [cache_ide2_data_pointer]
		628	jmp .continue
		629	.ide3:
		630	mov [cache_ide3_search_start], eax
		631	mov ecx, [cache_ide3_system_sad_size]
		632	mov edi, [cache_ide3_pointer]
		633	call .clear
		634	mov [cache_ide3_appl_search_start], eax
		635	mov ecx, [cache_ide3_appl_sad_size]
		636	mov edi, [cache_ide3_data_pointer]
		637	.continue:
		638	call .clear
		639	popa
		640	ret
		641	.clear:
		642	shl ecx, 1
		643	cld
		644	rep stosd
		645	ret
		646	;--------------------------------------------------------------------
		647	align 4
		648	cd_calculate_cache:
		649	; mov ecx,cache_max ; entries in cache
		650	; mov esi,HD_CACHE+8
		651
		652	; 1 - IDE0 ... 4 - IDE3
		653	.ide0:
		654	cmp [cdpos], 1
		655	jne .ide1
		656	cmp [cd_appl_data], 0
		657	jne .ide0_appl_data
		658	mov ecx, [cache_ide0_system_sad_size]
		659	mov esi, [cache_ide0_pointer]
		660	ret
		661	.ide0_appl_data:
		662	mov ecx, [cache_ide0_appl_sad_size]
		663	mov esi, [cache_ide0_data_pointer]
		664	ret
		665	.ide1:
		666	cmp [cdpos], 2
		667	jne .ide2
		668	cmp [cd_appl_data], 0
		669	jne .ide1_appl_data
		670	mov ecx, [cache_ide1_system_sad_size]
		671	mov esi, [cache_ide1_pointer]
		672	ret
		673	.ide1_appl_data:
		674	mov ecx, [cache_ide1_appl_sad_size]
		675	mov esi, [cache_ide1_data_pointer]
		676	ret
		677	.ide2:
		678	cmp [cdpos], 3
		679	jne .ide3
		680	cmp [cd_appl_data], 0
		681	jne .ide2_appl_data
		682	mov ecx, [cache_ide2_system_sad_size]
		683	mov esi, [cache_ide2_pointer]
		684	ret
		685	.ide2_appl_data:
		686	mov ecx, [cache_ide2_appl_sad_size]
		687	mov esi, [cache_ide2_data_pointer]
		688	ret
		689	.ide3:
		690	cmp [cd_appl_data], 0
		691	jne .ide3_appl_data
		692	mov ecx, [cache_ide3_system_sad_size]
		693	mov esi, [cache_ide3_pointer]
		694	ret
		695	.ide3_appl_data:
		696	mov ecx, [cache_ide3_appl_sad_size]
		697	mov esi, [cache_ide3_data_pointer]
		698	ret
		699	;--------------------------------------------------------------------
		700	align 4
		701	cd_calculate_cache_1:
		702	; lea esi,[edi*8+HD_CACHE]
		703	; 1 - IDE0 ... 4 - IDE3
		704	.ide0:
		705	cmp [cdpos], 1
		706	jne .ide1
		707	cmp [cd_appl_data], 0
		708	jne .ide0_appl_data
		709	mov esi, [cache_ide0_pointer]
		710	ret
		711	.ide0_appl_data:
		712	mov esi, [cache_ide0_data_pointer]
		713	ret
		714	.ide1:
		715	cmp [cdpos], 2
		716	jne .ide2
		717	cmp [cd_appl_data], 0
		718	jne .ide1_appl_data
		719	mov esi, [cache_ide1_pointer]
		720	ret
		721	.ide1_appl_data:
		722	mov esi, [cache_ide1_data_pointer]
		723	ret
		724	.ide2:
		725	cmp [cdpos], 3
		726	jne .ide3
		727	cmp [cd_appl_data], 0
		728	jne .ide2_appl_data
		729	mov esi, [cache_ide2_pointer]
		730	ret
		731	.ide2_appl_data:
		732	mov esi, [cache_ide2_data_pointer]
		733	ret
		734	.ide3:
		735	cmp [cd_appl_data], 0
		736	jne .ide3_appl_data
		737	mov esi, [cache_ide3_pointer]
		738	ret
		739	.ide3_appl_data:
		740	mov esi, [cache_ide3_data_pointer]
		741	ret
		742	;--------------------------------------------------------------------
		743	align 4
		744	cd_calculate_cache_2:
		745	; add esi,HD_CACHE+65536
		746	; 1 - IDE0 ... 4 - IDE3
		747	.ide0:
		748	cmp [cdpos], 1
		749	jne .ide1
		750	cmp [cd_appl_data], 0
		751	jne .ide0_appl_data
		752	mov eax, [cache_ide0_system_data]
		753	ret
		754	.ide0_appl_data:
		755	mov eax, [cache_ide0_appl_data]
		756	ret
		757	.ide1:
		758	cmp [cdpos], 2
		759	jne .ide2
		760	cmp [cd_appl_data], 0
		761	jne .ide1_appl_data
		762	mov eax, [cache_ide1_system_data]
		763	ret
		764	.ide1_appl_data:
		765	mov eax, [cache_ide1_appl_data]
		766	ret
		767	.ide2:
		768	cmp [cdpos], 3
		769	jne .ide3
		770	cmp [cd_appl_data], 0
		771	jne .ide2_appl_data
		772	mov eax, [cache_ide2_system_data]
		773	ret
		774	.ide2_appl_data:
		775	mov eax, [cache_ide2_appl_data]
		776	ret
		777	.ide3:
		778	cmp [cd_appl_data], 0
		779	jne .ide3_appl_data
		780	mov eax, [cache_ide3_system_data]
		781	ret
		782	.ide3_appl_data:
		783	mov eax, [cache_ide3_appl_data]
		784	ret
		785	;--------------------------------------------------------------------
		786	align 4
		787	cd_calculate_cache_3:
		788	; mov ecx,cache_max*10/100
		789	; mov edi,[cache_search_start]
		790
		791	; 1 - IDE0 ... 4 - IDE3
		792	.ide0:
		793	cmp [cdpos], 1
		794	jne .ide1
		795	cmp [cd_appl_data], 0
		796	jne .ide0_appl_data
		797	mov edi, [cache_ide0_search_start]
		798	ret
		799	.ide0_appl_data:
		800	mov edi, [cache_ide0_appl_search_start]
		801	ret
		802	.ide1:
		803	cmp [cdpos], 2
		804	jne .ide2
		805	cmp [cd_appl_data], 0
		806	jne .ide1_appl_data
		807	mov edi, [cache_ide1_search_start]
		808	ret
		809	.ide1_appl_data:
		810	mov edi, [cache_ide1_appl_search_start]
		811	ret
		812	.ide2:
		813	cmp [cdpos], 3
		814	jne .ide3
		815	cmp [cd_appl_data], 0
		816	jne .ide2_appl_data
		817	mov edi, [cache_ide2_search_start]
		818	ret
		819	.ide2_appl_data:
		820	mov edi, [cache_ide2_appl_search_start]
		821	ret
		822	.ide3:
		823	cmp [cd_appl_data], 0
		824	jne .ide3_appl_data
		825	mov edi, [cache_ide3_search_start]
		826	ret
		827	.ide3_appl_data:
		828	mov edi, [cache_ide3_appl_search_start]
		829	ret
		830	;--------------------------------------------------------------------
		831	align 4
		832	cd_calculate_cache_4:
		833	; cmp edi,cache_max
		834	; 1 - IDE0 ... 4 - IDE3
		835	.ide0:
		836	cmp [cdpos], 1
		837	jne .ide1
		838	cmp [cd_appl_data], 0
		839	jne .ide0_appl_data
		840	cmp edi, [cache_ide0_system_sad_size]
		841	ret
		842	.ide0_appl_data:
		843	cmp edi, [cache_ide0_appl_sad_size]
		844	ret
		845	.ide1:
		846	cmp [cdpos], 2
		847	jne .ide2
		848	cmp [cd_appl_data], 0
		849	jne .ide1_appl_data
		850	cmp edi, [cache_ide1_system_sad_size]
		851	ret
		852	.ide1_appl_data:
		853	cmp edi, [cache_ide1_appl_sad_size]
		854	ret
		855	.ide2:
		856	cmp [cdpos], 3
		857	jne .ide3
		858	cmp [cd_appl_data], 0
		859	jne .ide2_appl_data
		860	cmp edi, [cache_ide2_system_sad_size]
		861	ret
		862	.ide2_appl_data:
		863	cmp edi, [cache_ide2_appl_sad_size]
		864	ret
		865	.ide3:
		866	cmp [cd_appl_data], 0
		867	jne .ide3_appl_data
		868	cmp edi, [cache_ide3_system_sad_size]
		869	ret
		870	.ide3_appl_data:
		871	cmp edi, [cache_ide3_appl_sad_size]
		872	ret
		873	;--------------------------------------------------------------------
		874	align 4
		875	cd_calculate_cache_5:
		876	; mov [cache_search_start],edi
		877	; 1 - IDE0 ... 4 - IDE3
		878	.ide0:
		879	cmp [cdpos], 1
		880	jne .ide1
		881	cmp [cd_appl_data], 0
		882	jne .ide0_appl_data
		883	mov [cache_ide0_search_start], edi
		884	ret
		885	.ide0_appl_data:
		886	mov [cache_ide0_appl_search_start], edi
		887	ret
		888	.ide1:
		889	cmp [cdpos], 2
		890	jne .ide2
		891	cmp [cd_appl_data], 0
		892	jne .ide1_appl_data
		893	mov [cache_ide1_search_start], edi
		894	ret
		895	.ide1_appl_data:
		896	mov [cache_ide1_appl_search_start], edi
		897	ret
		898	.ide2:
		899	cmp [cdpos], 3
		900	jne .ide3
		901	cmp [cd_appl_data], 0
		902	jne .ide2_appl_data
		903	mov [cache_ide2_search_start], edi
		904	ret
		905	.ide2_appl_data:
		906	mov [cache_ide2_appl_search_start], edi
		907	ret
		908	.ide3:
		909	cmp [cd_appl_data], 0
		910	jne .ide3_appl_data
		911	mov [cache_ide3_search_start], edi
		912	ret
		913	.ide3_appl_data:
		914	mov [cache_ide3_appl_search_start], edi
		915	ret
		916	;--------------------------------------------------------------------
		917	;align 4
		918	;calculate_linear_to_real:
		919	; shr eax, 12
		920	; mov eax, [page_tabs+eax*4]
		921	; and eax, 0xFFFFF000
		922	; ret

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(root)/kernel/trunk/blkdev/ide_cache.inc – Rev 2288