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

Rev	Author	Line No.	Line
2288	clevermous	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
2455	mario79	3	;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;;
2288	clevermous	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: 2643 $
		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	ret
		141	;--------------------------------------------------------------------
		142	align 4
		143	calculate_cache:
		144	; mov ecx,cache_max ; entries in cache
		145	; mov esi,HD_CACHE+8
		146
		147	; 1 - IDE0 ... 4 - IDE3
		148	.ide0:
		149	cmp [hdpos], 1
		150	jne .ide1
		151	cmp [hdd_appl_data], 0
		152	jne .ide0_appl_data
		153	mov ecx, [cache_ide0_system_sad_size]
		154	mov esi, [cache_ide0_pointer]
		155	ret
		156	.ide0_appl_data:
		157	mov ecx, [cache_ide0_appl_sad_size]
		158	mov esi, [cache_ide0_data_pointer]
		159	ret
		160	.ide1:
		161	cmp [hdpos], 2
		162	jne .ide2
		163	cmp [hdd_appl_data], 0
		164	jne .ide1_appl_data
		165	mov ecx, [cache_ide1_system_sad_size]
		166	mov esi, [cache_ide1_pointer]
		167	ret
		168	.ide1_appl_data:
		169	mov ecx, [cache_ide1_appl_sad_size]
		170	mov esi, [cache_ide1_data_pointer]
		171	ret
		172	.ide2:
		173	cmp [hdpos], 3
		174	jne .ide3
		175	cmp [hdd_appl_data], 0
		176	jne .ide2_appl_data
		177	mov ecx, [cache_ide2_system_sad_size]
		178	mov esi, [cache_ide2_pointer]
		179	ret
		180	.ide2_appl_data:
		181	mov ecx, [cache_ide2_appl_sad_size]
		182	mov esi, [cache_ide2_data_pointer]
		183	ret
		184	.ide3:
		185	cmp [hdpos], 4
		186	jne .noide
		187	cmp [hdd_appl_data], 0
		188	jne .ide3_appl_data
		189	mov ecx, [cache_ide3_system_sad_size]
		190	mov esi, [cache_ide3_pointer]
		191	ret
		192	.ide3_appl_data:
		193	mov ecx, [cache_ide3_appl_sad_size]
		194	mov esi, [cache_ide3_data_pointer]
		195	ret
		196	.noide:
		197	push eax
		198	mov eax, [hdpos]
		199	sub eax, 80h
		200	cmp byte [BiosDisksData+eax*4+2], -1
		201	jz @f
		202	movzx eax, byte [BiosDisksData+eax*4+2]
		203	imul eax, cache_ide1-cache_ide0
		204	add eax, cache_ide0
		205	jmp .get
		206	@@:
		207	imul eax, cache_ide1-cache_ide0
		208	add eax, BiosDiskCaches
		209	.get:
		210	cmp [hdd_appl_data], 0
		211	jne .bd_appl_data
		212	mov ecx, [cache_ide0_system_sad_size-cache_ide0+eax]
		213	mov esi, [cache_ide0_pointer-cache_ide0+eax]
		214	pop eax
		215	ret
		216	.bd_appl_data:
		217	mov ecx, [cache_ide0_appl_sad_size-cache_ide0+eax]
		218	mov esi, [cache_ide0_data_pointer-cache_ide0+eax]
		219	pop eax
		220	ret
		221	;--------------------------------------------------------------------
		222	align 4
		223	calculate_cache_1:
		224	; lea esi,[edi*8+HD_CACHE]
		225	; 1 - IDE0 ... 4 - IDE3
		226	.ide0:
		227	cmp [hdpos], 1
		228	jne .ide1
		229	cmp [hdd_appl_data], 0
		230	jne .ide0_appl_data
		231	mov esi, [cache_ide0_pointer]
		232	ret
		233	.ide0_appl_data:
		234	mov esi, [cache_ide0_data_pointer]
		235	ret
		236	.ide1:
		237	cmp [hdpos], 2
		238	jne .ide2
		239	cmp [hdd_appl_data], 0
		240	jne .ide1_appl_data
		241	mov esi, [cache_ide1_pointer]
		242	ret
		243	.ide1_appl_data:
		244	mov esi, [cache_ide1_data_pointer]
		245	ret
		246	.ide2:
		247	cmp [hdpos], 3
		248	jne .ide3
		249	cmp [hdd_appl_data], 0
		250	jne .ide2_appl_data
		251	mov esi, [cache_ide2_pointer]
		252	ret
		253	.ide2_appl_data:
		254	mov esi, [cache_ide2_data_pointer]
		255	ret
		256	.ide3:
		257	cmp [hdpos], 4
		258	jne .noide
		259	cmp [hdd_appl_data], 0
		260	jne .ide3_appl_data
		261	mov esi, [cache_ide3_pointer]
		262	ret
		263	.ide3_appl_data:
		264	mov esi, [cache_ide3_data_pointer]
		265	ret
		266	.noide:
		267	push eax
		268	mov eax, [hdpos]
		269	sub eax, 80h
		270	cmp byte [BiosDisksData+eax*4+2], -1
		271	jz @f
		272	movzx eax, byte [BiosDisksData+eax*4+2]
		273	imul eax, cache_ide1-cache_ide0
		274	add eax, cache_ide0
		275	jmp .get
		276	@@:
		277	imul eax, cache_ide1-cache_ide0
		278	add eax, BiosDiskCaches
		279	.get:
		280	cmp [hdd_appl_data], 0
		281	jne .bd_appl_data
		282	mov esi, [cache_ide0_pointer-cache_ide0+eax]
		283	pop eax
		284	ret
		285	.bd_appl_data:
		286	mov esi, [cache_ide0_data_pointer-cache_ide0+eax]
		287	pop eax
		288	ret
		289
		290	;--------------------------------------------------------------------
		291	align 4
		292	calculate_cache_2:
		293	; add esi,HD_CACHE+65536
		294	; 1 - IDE0 ... 4 - IDE3
		295	.ide0:
		296	cmp [hdpos], 1
		297	jne .ide1
		298	cmp [hdd_appl_data], 0
		299	jne .ide0_appl_data
		300	mov eax, [cache_ide0_system_data]
		301	ret
		302	.ide0_appl_data:
		303	mov eax, [cache_ide0_appl_data]
		304	ret
		305	.ide1:
		306	cmp [hdpos], 2
		307	jne .ide2
		308	cmp [hdd_appl_data], 0
		309	jne .ide1_appl_data
		310	mov eax, [cache_ide1_system_data]
		311	ret
		312	.ide1_appl_data:
		313	mov eax, [cache_ide1_appl_data]
		314	ret
		315	.ide2:
		316	cmp [hdpos], 3
		317	jne .ide3
		318	cmp [hdd_appl_data], 0
		319	jne .ide2_appl_data
		320	mov eax, [cache_ide2_system_data]
		321	ret
		322	.ide2_appl_data:
		323	mov eax, [cache_ide2_appl_data]
		324	ret
		325	.ide3:
		326	cmp [hdpos], 4
		327	jne .noide
		328	cmp [hdd_appl_data], 0
		329	jne .ide3_appl_data
		330	mov eax, [cache_ide3_system_data]
		331	ret
		332	.ide3_appl_data:
		333	mov eax, [cache_ide3_appl_data]
		334	ret
		335	.noide:
		336	mov eax, [hdpos]
		337	sub eax, 80h
		338	cmp byte [BiosDisksData+eax*4+2], -1
		339	jz @f
		340	movzx eax, byte [BiosDisksData+eax*4+2]
		341	imul eax, cache_ide1-cache_ide0
		342	add eax, cache_ide0
		343	jmp .get
		344	@@:
		345	imul eax, cache_ide1-cache_ide0
		346	add eax, BiosDiskCaches
		347	.get:
		348	cmp [hdd_appl_data], 0
		349	jne .bd_appl_data
		350	mov eax, [cache_ide0_system_data-cache_ide0+eax]
		351	ret
		352	.bd_appl_data:
		353	mov eax, [cache_ide0_appl_data-cache_ide0+eax]
		354	ret
		355	;--------------------------------------------------------------------
		356	align 4
		357	calculate_cache_3:
		358	; mov ecx,cache_max*10/100
		359	; mov edi,[cache_search_start]
		360
		361	; 1 - IDE0 ... 4 - IDE3
		362	.ide0:
		363	cmp [hdpos], 1
		364	jne .ide1
		365	cmp [hdd_appl_data], 0
		366	jne .ide0_appl_data
		367	mov ecx, [cache_ide0_system_sad_size]
		368	mov edi, [cache_ide0_search_start]
		369	ret
		370	.ide0_appl_data:
		371	mov ecx, [cache_ide0_appl_sad_size]
		372	mov edi, [cache_ide0_appl_search_start]
		373	ret
		374	.ide1:
		375	cmp [hdpos], 2
		376	jne .ide2
		377	cmp [hdd_appl_data], 0
		378	jne .ide1_appl_data
		379	mov ecx, [cache_ide1_system_sad_size]
		380	mov edi, [cache_ide1_search_start]
		381	ret
		382	.ide1_appl_data:
		383	mov ecx, [cache_ide1_appl_sad_size]
		384	mov edi, [cache_ide1_appl_search_start]
		385	ret
		386	.ide2:
		387	cmp [hdpos], 3
		388	jne .ide3
		389	cmp [hdd_appl_data], 0
		390	jne .ide2_appl_data
		391	mov ecx, [cache_ide2_system_sad_size]
		392	mov edi, [cache_ide2_search_start]
		393	ret
		394	.ide2_appl_data:
		395	mov ecx, [cache_ide2_appl_sad_size]
		396	mov edi, [cache_ide2_appl_search_start]
		397	ret
		398	.ide3:
		399	cmp [hdpos], 4
		400	jne .noide
		401	cmp [hdd_appl_data], 0
		402	jne .ide3_appl_data
		403	mov ecx, [cache_ide3_system_sad_size]
		404	mov edi, [cache_ide3_search_start]
		405	ret
		406	.ide3_appl_data:
		407	mov ecx, [cache_ide3_appl_sad_size]
		408	mov edi, [cache_ide3_appl_search_start]
		409	ret
		410	.noide:
		411	push eax
		412	mov eax, [hdpos]
		413	sub eax, 80h
		414	cmp byte [BiosDisksData+eax*4+2], -1
		415	jz @f
		416	movzx eax, byte [BiosDisksData+eax*4+2]
		417	imul eax, cache_ide1-cache_ide0
		418	add eax, cache_ide0
		419	jmp .get
		420	@@:
		421	imul eax, cache_ide1-cache_ide0
		422	add eax, BiosDiskCaches
		423	.get:
		424	cmp [hdd_appl_data], 0
		425	jne .bd_appl_data
		426	mov ecx, [cache_ide0_system_sad_size-cache_ide0+eax]
		427	mov edi, [cache_ide0_search_start-cache_ide0+eax]
		428	pop eax
		429	ret
		430	.bd_appl_data:
		431	mov ecx, [cache_ide0_appl_sad_size-cache_ide0+eax]
		432	mov edi, [cache_ide0_appl_search_start-cache_ide0+eax]
		433	pop eax
		434	ret
		435	;--------------------------------------------------------------------
		436	align 4
		437	calculate_cache_4:
		438	; cmp edi,cache_max
		439	; 1 - IDE0 ... 4 - IDE3
		440	.ide0:
		441	cmp [hdpos], 1
		442	jne .ide1
		443	cmp [hdd_appl_data], 0
		444	jne .ide0_appl_data
		445	cmp edi, [cache_ide0_system_sad_size]
		446	ret
		447	.ide0_appl_data:
		448	cmp edi, [cache_ide0_appl_sad_size]
		449	ret
		450	.ide1:
		451	cmp [hdpos], 2
		452	jne .ide2
		453	cmp [hdd_appl_data], 0
		454	jne .ide1_appl_data
		455	cmp edi, [cache_ide1_system_sad_size]
		456	ret
		457	.ide1_appl_data:
		458	cmp edi, [cache_ide1_appl_sad_size]
		459	ret
		460	.ide2:
		461	cmp [hdpos], 3
		462	jne .ide3
		463	cmp [hdd_appl_data], 0
		464	jne .ide2_appl_data
		465	cmp edi, [cache_ide2_system_sad_size]
		466	ret
		467	.ide2_appl_data:
		468	cmp edi, [cache_ide2_appl_sad_size]
		469	ret
		470	.ide3:
		471	cmp [hdpos], 4
		472	jne .noide
		473	cmp [hdd_appl_data], 0
		474	jne .ide3_appl_data
		475	cmp edi, [cache_ide3_system_sad_size]
		476	ret
		477	.ide3_appl_data:
		478	cmp edi, [cache_ide3_appl_sad_size]
		479	ret
		480	.noide:
		481	push eax
		482	mov eax, [hdpos]
		483	sub eax, 80h
		484	cmp byte [BiosDisksData+eax*4+2], -1
		485	jz @f
		486	movzx eax, byte [BiosDisksData+eax*4+2]
		487	imul eax, cache_ide1-cache_ide0
		488	add eax, cache_ide0
		489	jmp .get
		490	@@:
		491	imul eax, cache_ide1-cache_ide0
		492	add eax, BiosDiskCaches
		493	.get:
		494	cmp [hdd_appl_data], 0
		495	jne .bd_appl_data
		496	cmp edi, [cache_ide0_system_sad_size-cache_ide0+eax]
		497	pop eax
		498	ret
		499	.bd_appl_data:
		500	cmp edi, [cache_ide0_appl_sad_size-cache_ide0+eax]
		501	pop eax
		502	ret
		503
		504	;--------------------------------------------------------------------
		505	align 4
		506	calculate_cache_5:
		507	; mov [cache_search_start],edi
		508	; 1 - IDE0 ... 4 - IDE3
		509	.ide0:
		510	cmp [hdpos], 1
		511	jne .ide1
		512	cmp [hdd_appl_data], 0
		513	jne .ide0_appl_data
		514	mov [cache_ide0_search_start], edi
		515	ret
		516	.ide0_appl_data:
		517	mov [cache_ide0_appl_search_start], edi
		518	ret
		519	.ide1:
		520	cmp [hdpos], 2
		521	jne .ide2
		522	cmp [hdd_appl_data], 0
		523	jne .ide1_appl_data
		524	mov [cache_ide1_search_start], edi
		525	ret
		526	.ide1_appl_data:
		527	mov [cache_ide1_appl_search_start], edi
		528	ret
		529	.ide2:
		530	cmp [hdpos], 3
		531	jne .ide3
		532	cmp [hdd_appl_data], 0
		533	jne .ide2_appl_data
		534	mov [cache_ide2_search_start], edi
		535	ret
		536	.ide2_appl_data:
		537	mov [cache_ide2_appl_search_start], edi
		538	ret
		539	.ide3:
		540	cmp [hdpos], 4
		541	jne .noide
		542	cmp [hdd_appl_data], 0
		543	jne .ide3_appl_data
		544	mov [cache_ide3_search_start], edi
		545	ret
		546	.ide3_appl_data:
		547	mov [cache_ide3_appl_search_start], edi
		548	ret
		549	.noide:
		550	push eax
		551	mov eax, [hdpos]
		552	sub eax, 80h
		553	cmp byte [BiosDisksData+eax*4+2], -1
		554	jz @f
		555	movzx eax, byte [BiosDisksData+eax*4+2]
		556	imul eax, cache_ide1-cache_ide0
		557	add eax, cache_ide0
		558	jmp .get
		559	@@:
		560	imul eax, cache_ide1-cache_ide0
		561	add eax, BiosDiskCaches
		562	.get:
		563	cmp [hdd_appl_data], 0
		564	jne .bd_appl_data
		565	mov [cache_ide0_search_start-cache_ide0+eax], edi
		566	pop eax
		567	ret
		568	.bd_appl_data:
		569	mov [cache_ide0_appl_search_start-cache_ide0+eax], edi
		570	pop eax
		571	ret
		572
		573	;--------------------------------------------------------------------
		574	align 4
		575	find_empty_slot_CD_cache:
		576	;-----------------------------------------------------------
		577	; find empty or read slot, flush cache if next 10% is used by write
		578	; output : edi = cache slot
		579	;-----------------------------------------------------------
		580	.search_again:
		581	call cd_calculate_cache_3
		582	.search_for_empty:
		583	inc edi
		584	call cd_calculate_cache_4
		585	jbe .inside_cache
		586	mov edi, 1
		587	.inside_cache:
		588	call cd_calculate_cache_5
		589	ret
		590	;--------------------------------------------------------------------
		591	clear_CD_cache:
		592	pusha
		593	.ide0:
		594	xor eax, eax
		595	cmp [cdpos], 1
		596	jne .ide1
		597	mov [cache_ide0_search_start], eax
		598	mov ecx, [cache_ide0_system_sad_size]
		599	mov edi, [cache_ide0_pointer]
		600	call .clear
		601	mov [cache_ide0_appl_search_start], eax
		602	mov ecx, [cache_ide0_appl_sad_size]
		603	mov edi, [cache_ide0_data_pointer]
		604	jmp .continue
		605	.ide1:
		606	cmp [cdpos], 2
		607	jne .ide2
		608	mov [cache_ide1_search_start], eax
		609	mov ecx, [cache_ide1_system_sad_size]
		610	mov edi, [cache_ide1_pointer]
		611	call .clear
		612	mov [cache_ide1_appl_search_start], eax
		613	mov ecx, [cache_ide1_appl_sad_size]
		614	mov edi, [cache_ide1_data_pointer]
		615	jmp .continue
		616	.ide2:
		617	cmp [cdpos], 3
		618	jne .ide3
		619	mov [cache_ide2_search_start], eax
		620	mov ecx, [cache_ide2_system_sad_size]
		621	mov edi, [cache_ide2_pointer]
		622	call .clear
		623	mov [cache_ide2_appl_search_start], eax
		624	mov ecx, [cache_ide2_appl_sad_size]
		625	mov edi, [cache_ide2_data_pointer]
		626	jmp .continue
		627	.ide3:
		628	mov [cache_ide3_search_start], eax
		629	mov ecx, [cache_ide3_system_sad_size]
		630	mov edi, [cache_ide3_pointer]
		631	call .clear
		632	mov [cache_ide3_appl_search_start], eax
		633	mov ecx, [cache_ide3_appl_sad_size]
		634	mov edi, [cache_ide3_data_pointer]
		635	.continue:
		636	call .clear
		637	popa
		638	ret
		639	.clear:
		640	shl ecx, 1
		641	cld
		642	rep stosd
		643	ret
		644	;--------------------------------------------------------------------
		645	align 4
		646	cd_calculate_cache:
		647	; mov ecx,cache_max ; entries in cache
		648	; mov esi,HD_CACHE+8
		649
		650	; 1 - IDE0 ... 4 - IDE3
		651	.ide0:
		652	cmp [cdpos], 1
		653	jne .ide1
		654	cmp [cd_appl_data], 0
		655	jne .ide0_appl_data
		656	mov ecx, [cache_ide0_system_sad_size]
		657	mov esi, [cache_ide0_pointer]
		658	ret
		659	.ide0_appl_data:
		660	mov ecx, [cache_ide0_appl_sad_size]
		661	mov esi, [cache_ide0_data_pointer]
		662	ret
		663	.ide1:
		664	cmp [cdpos], 2
		665	jne .ide2
		666	cmp [cd_appl_data], 0
		667	jne .ide1_appl_data
		668	mov ecx, [cache_ide1_system_sad_size]
		669	mov esi, [cache_ide1_pointer]
		670	ret
		671	.ide1_appl_data:
		672	mov ecx, [cache_ide1_appl_sad_size]
		673	mov esi, [cache_ide1_data_pointer]
		674	ret
		675	.ide2:
		676	cmp [cdpos], 3
		677	jne .ide3
		678	cmp [cd_appl_data], 0
		679	jne .ide2_appl_data
		680	mov ecx, [cache_ide2_system_sad_size]
		681	mov esi, [cache_ide2_pointer]
		682	ret
		683	.ide2_appl_data:
		684	mov ecx, [cache_ide2_appl_sad_size]
		685	mov esi, [cache_ide2_data_pointer]
		686	ret
		687	.ide3:
		688	cmp [cd_appl_data], 0
		689	jne .ide3_appl_data
		690	mov ecx, [cache_ide3_system_sad_size]
		691	mov esi, [cache_ide3_pointer]
		692	ret
		693	.ide3_appl_data:
		694	mov ecx, [cache_ide3_appl_sad_size]
		695	mov esi, [cache_ide3_data_pointer]
		696	ret
		697	;--------------------------------------------------------------------
		698	align 4
		699	cd_calculate_cache_1:
		700	; lea esi,[edi*8+HD_CACHE]
		701	; 1 - IDE0 ... 4 - IDE3
		702	.ide0:
		703	cmp [cdpos], 1
		704	jne .ide1
		705	cmp [cd_appl_data], 0
		706	jne .ide0_appl_data
		707	mov esi, [cache_ide0_pointer]
		708	ret
		709	.ide0_appl_data:
		710	mov esi, [cache_ide0_data_pointer]
		711	ret
		712	.ide1:
		713	cmp [cdpos], 2
		714	jne .ide2
		715	cmp [cd_appl_data], 0
		716	jne .ide1_appl_data
		717	mov esi, [cache_ide1_pointer]
		718	ret
		719	.ide1_appl_data:
		720	mov esi, [cache_ide1_data_pointer]
		721	ret
		722	.ide2:
		723	cmp [cdpos], 3
		724	jne .ide3
		725	cmp [cd_appl_data], 0
		726	jne .ide2_appl_data
		727	mov esi, [cache_ide2_pointer]
		728	ret
		729	.ide2_appl_data:
		730	mov esi, [cache_ide2_data_pointer]
		731	ret
		732	.ide3:
		733	cmp [cd_appl_data], 0
		734	jne .ide3_appl_data
		735	mov esi, [cache_ide3_pointer]
		736	ret
		737	.ide3_appl_data:
		738	mov esi, [cache_ide3_data_pointer]
		739	ret
		740	;--------------------------------------------------------------------
		741	align 4
		742	cd_calculate_cache_2:
		743	; add esi,HD_CACHE+65536
		744	; 1 - IDE0 ... 4 - IDE3
		745	.ide0:
		746	cmp [cdpos], 1
		747	jne .ide1
		748	cmp [cd_appl_data], 0
		749	jne .ide0_appl_data
		750	mov eax, [cache_ide0_system_data]
		751	ret
		752	.ide0_appl_data:
		753	mov eax, [cache_ide0_appl_data]
		754	ret
		755	.ide1:
		756	cmp [cdpos], 2
		757	jne .ide2
		758	cmp [cd_appl_data], 0
		759	jne .ide1_appl_data
		760	mov eax, [cache_ide1_system_data]
		761	ret
		762	.ide1_appl_data:
		763	mov eax, [cache_ide1_appl_data]
		764	ret
		765	.ide2:
		766	cmp [cdpos], 3
		767	jne .ide3
		768	cmp [cd_appl_data], 0
		769	jne .ide2_appl_data
		770	mov eax, [cache_ide2_system_data]
		771	ret
		772	.ide2_appl_data:
		773	mov eax, [cache_ide2_appl_data]
		774	ret
		775	.ide3:
		776	cmp [cd_appl_data], 0
		777	jne .ide3_appl_data
		778	mov eax, [cache_ide3_system_data]
		779	ret
		780	.ide3_appl_data:
		781	mov eax, [cache_ide3_appl_data]
		782	ret
		783	;--------------------------------------------------------------------
		784	align 4
		785	cd_calculate_cache_3:
		786	; mov ecx,cache_max*10/100
		787	; mov edi,[cache_search_start]
		788
		789	; 1 - IDE0 ... 4 - IDE3
		790	.ide0:
		791	cmp [cdpos], 1
		792	jne .ide1
		793	cmp [cd_appl_data], 0
		794	jne .ide0_appl_data
		795	mov edi, [cache_ide0_search_start]
		796	ret
		797	.ide0_appl_data:
		798	mov edi, [cache_ide0_appl_search_start]
		799	ret
		800	.ide1:
		801	cmp [cdpos], 2
		802	jne .ide2
		803	cmp [cd_appl_data], 0
		804	jne .ide1_appl_data
		805	mov edi, [cache_ide1_search_start]
		806	ret
		807	.ide1_appl_data:
		808	mov edi, [cache_ide1_appl_search_start]
		809	ret
		810	.ide2:
		811	cmp [cdpos], 3
		812	jne .ide3
		813	cmp [cd_appl_data], 0
		814	jne .ide2_appl_data
		815	mov edi, [cache_ide2_search_start]
		816	ret
		817	.ide2_appl_data:
		818	mov edi, [cache_ide2_appl_search_start]
		819	ret
		820	.ide3:
		821	cmp [cd_appl_data], 0
		822	jne .ide3_appl_data
		823	mov edi, [cache_ide3_search_start]
		824	ret
		825	.ide3_appl_data:
		826	mov edi, [cache_ide3_appl_search_start]
		827	ret
		828	;--------------------------------------------------------------------
		829	align 4
		830	cd_calculate_cache_4:
		831	; cmp edi,cache_max
		832	; 1 - IDE0 ... 4 - IDE3
		833	.ide0:
		834	cmp [cdpos], 1
		835	jne .ide1
		836	cmp [cd_appl_data], 0
		837	jne .ide0_appl_data
		838	cmp edi, [cache_ide0_system_sad_size]
		839	ret
		840	.ide0_appl_data:
		841	cmp edi, [cache_ide0_appl_sad_size]
		842	ret
		843	.ide1:
		844	cmp [cdpos], 2
		845	jne .ide2
		846	cmp [cd_appl_data], 0
		847	jne .ide1_appl_data
		848	cmp edi, [cache_ide1_system_sad_size]
		849	ret
		850	.ide1_appl_data:
		851	cmp edi, [cache_ide1_appl_sad_size]
		852	ret
		853	.ide2:
		854	cmp [cdpos], 3
		855	jne .ide3
		856	cmp [cd_appl_data], 0
		857	jne .ide2_appl_data
		858	cmp edi, [cache_ide2_system_sad_size]
		859	ret
		860	.ide2_appl_data:
		861	cmp edi, [cache_ide2_appl_sad_size]
		862	ret
		863	.ide3:
		864	cmp [cd_appl_data], 0
		865	jne .ide3_appl_data
		866	cmp edi, [cache_ide3_system_sad_size]
		867	ret
		868	.ide3_appl_data:
		869	cmp edi, [cache_ide3_appl_sad_size]
		870	ret
		871	;--------------------------------------------------------------------
		872	align 4
		873	cd_calculate_cache_5:
		874	; mov [cache_search_start],edi
		875	; 1 - IDE0 ... 4 - IDE3
		876	.ide0:
		877	cmp [cdpos], 1
		878	jne .ide1
		879	cmp [cd_appl_data], 0
		880	jne .ide0_appl_data
		881	mov [cache_ide0_search_start], edi
		882	ret
		883	.ide0_appl_data:
		884	mov [cache_ide0_appl_search_start], edi
		885	ret
		886	.ide1:
		887	cmp [cdpos], 2
		888	jne .ide2
		889	cmp [cd_appl_data], 0
		890	jne .ide1_appl_data
		891	mov [cache_ide1_search_start], edi
		892	ret
		893	.ide1_appl_data:
		894	mov [cache_ide1_appl_search_start], edi
		895	ret
		896	.ide2:
		897	cmp [cdpos], 3
		898	jne .ide3
		899	cmp [cd_appl_data], 0
		900	jne .ide2_appl_data
		901	mov [cache_ide2_search_start], edi
		902	ret
		903	.ide2_appl_data:
		904	mov [cache_ide2_appl_search_start], edi
		905	ret
		906	.ide3:
		907	cmp [cd_appl_data], 0
		908	jne .ide3_appl_data
		909	mov [cache_ide3_search_start], edi
		910	ret
		911	.ide3_appl_data:
		912	mov [cache_ide3_appl_search_start], edi
		913	ret
		914	;--------------------------------------------------------------------
		915	;align 4
		916	;calculate_linear_to_real:
		917	; shr eax, 12
		918	; mov eax, [page_tabs+eax*4]
		919	; and eax, 0xFFFFF000
		920	; ret

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(root)/kernel/trunk/blkdev/ide_cache.inc – Rev 2643