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: 3712 $
		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	@@:
3539	clevermous	55	; Объединяем запись цепочки последовательных секторов в одно обращение к диску
2288	clevermous	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	calculate_cache:
		140	; 1 - IDE0 ... 4 - IDE3
		141	.ide0:
		142	cmp [hdpos], 1
		143	jne .ide1
		144	cmp [hdd_appl_data], 0
		145	jne .ide0_appl_data
		146	mov ecx, [cache_ide0_system_sad_size]
		147	mov esi, [cache_ide0_pointer]
		148	ret
		149	.ide0_appl_data:
		150	mov ecx, [cache_ide0_appl_sad_size]
		151	mov esi, [cache_ide0_data_pointer]
		152	ret
		153	.ide1:
		154	cmp [hdpos], 2
		155	jne .ide2
		156	cmp [hdd_appl_data], 0
		157	jne .ide1_appl_data
		158	mov ecx, [cache_ide1_system_sad_size]
		159	mov esi, [cache_ide1_pointer]
		160	ret
		161	.ide1_appl_data:
		162	mov ecx, [cache_ide1_appl_sad_size]
		163	mov esi, [cache_ide1_data_pointer]
		164	ret
		165	.ide2:
		166	cmp [hdpos], 3
		167	jne .ide3
		168	cmp [hdd_appl_data], 0
		169	jne .ide2_appl_data
		170	mov ecx, [cache_ide2_system_sad_size]
		171	mov esi, [cache_ide2_pointer]
		172	ret
		173	.ide2_appl_data:
		174	mov ecx, [cache_ide2_appl_sad_size]
		175	mov esi, [cache_ide2_data_pointer]
		176	ret
		177	.ide3:
		178	cmp [hdpos], 4
		179	jne .noide
		180	cmp [hdd_appl_data], 0
		181	jne .ide3_appl_data
		182	mov ecx, [cache_ide3_system_sad_size]
		183	mov esi, [cache_ide3_pointer]
		184	ret
		185	.ide3_appl_data:
		186	mov ecx, [cache_ide3_appl_sad_size]
		187	mov esi, [cache_ide3_data_pointer]
		188	ret
		189	.noide:
		190	push eax
		191	mov eax, [hdpos]
		192	sub eax, 80h
		193	cmp byte [BiosDisksData+eax*4+2], -1
		194	jz @f
		195	movzx eax, byte [BiosDisksData+eax*4+2]
		196	imul eax, cache_ide1-cache_ide0
		197	add eax, cache_ide0
		198	jmp .get
		199	@@:
		200	imul eax, cache_ide1-cache_ide0
		201	add eax, BiosDiskCaches
		202	.get:
		203	cmp [hdd_appl_data], 0
		204	jne .bd_appl_data
		205	mov ecx, [cache_ide0_system_sad_size-cache_ide0+eax]
		206	mov esi, [cache_ide0_pointer-cache_ide0+eax]
		207	pop eax
		208	ret
		209	.bd_appl_data:
		210	mov ecx, [cache_ide0_appl_sad_size-cache_ide0+eax]
		211	mov esi, [cache_ide0_data_pointer-cache_ide0+eax]
		212	pop eax
		213	ret
		214	;--------------------------------------------------------------------
		215	align 4
		216	calculate_cache_1:
		217	; 1 - IDE0 ... 4 - IDE3
		218	.ide0:
		219	cmp [hdpos], 1
		220	jne .ide1
		221	cmp [hdd_appl_data], 0
		222	jne .ide0_appl_data
		223	mov esi, [cache_ide0_pointer]
		224	ret
		225	.ide0_appl_data:
		226	mov esi, [cache_ide0_data_pointer]
		227	ret
		228	.ide1:
		229	cmp [hdpos], 2
		230	jne .ide2
		231	cmp [hdd_appl_data], 0
		232	jne .ide1_appl_data
		233	mov esi, [cache_ide1_pointer]
		234	ret
		235	.ide1_appl_data:
		236	mov esi, [cache_ide1_data_pointer]
		237	ret
		238	.ide2:
		239	cmp [hdpos], 3
		240	jne .ide3
		241	cmp [hdd_appl_data], 0
		242	jne .ide2_appl_data
		243	mov esi, [cache_ide2_pointer]
		244	ret
		245	.ide2_appl_data:
		246	mov esi, [cache_ide2_data_pointer]
		247	ret
		248	.ide3:
		249	cmp [hdpos], 4
		250	jne .noide
		251	cmp [hdd_appl_data], 0
		252	jne .ide3_appl_data
		253	mov esi, [cache_ide3_pointer]
		254	ret
		255	.ide3_appl_data:
		256	mov esi, [cache_ide3_data_pointer]
		257	ret
		258	.noide:
		259	push eax
		260	mov eax, [hdpos]
		261	sub eax, 80h
		262	cmp byte [BiosDisksData+eax*4+2], -1
		263	jz @f
		264	movzx eax, byte [BiosDisksData+eax*4+2]
		265	imul eax, cache_ide1-cache_ide0
		266	add eax, cache_ide0
		267	jmp .get
		268	@@:
		269	imul eax, cache_ide1-cache_ide0
		270	add eax, BiosDiskCaches
		271	.get:
		272	cmp [hdd_appl_data], 0
		273	jne .bd_appl_data
		274	mov esi, [cache_ide0_pointer-cache_ide0+eax]
		275	pop eax
		276	ret
		277	.bd_appl_data:
		278	mov esi, [cache_ide0_data_pointer-cache_ide0+eax]
		279	pop eax
		280	ret
		281
		282	;--------------------------------------------------------------------
		283	align 4
		284	calculate_cache_2:
		285	; 1 - IDE0 ... 4 - IDE3
		286	.ide0:
		287	cmp [hdpos], 1
		288	jne .ide1
		289	cmp [hdd_appl_data], 0
		290	jne .ide0_appl_data
		291	mov eax, [cache_ide0_system_data]
		292	ret
		293	.ide0_appl_data:
		294	mov eax, [cache_ide0_appl_data]
		295	ret
		296	.ide1:
		297	cmp [hdpos], 2
		298	jne .ide2
		299	cmp [hdd_appl_data], 0
		300	jne .ide1_appl_data
		301	mov eax, [cache_ide1_system_data]
		302	ret
		303	.ide1_appl_data:
		304	mov eax, [cache_ide1_appl_data]
		305	ret
		306	.ide2:
		307	cmp [hdpos], 3
		308	jne .ide3
		309	cmp [hdd_appl_data], 0
		310	jne .ide2_appl_data
		311	mov eax, [cache_ide2_system_data]
		312	ret
		313	.ide2_appl_data:
		314	mov eax, [cache_ide2_appl_data]
		315	ret
		316	.ide3:
		317	cmp [hdpos], 4
		318	jne .noide
		319	cmp [hdd_appl_data], 0
		320	jne .ide3_appl_data
		321	mov eax, [cache_ide3_system_data]
		322	ret
		323	.ide3_appl_data:
		324	mov eax, [cache_ide3_appl_data]
		325	ret
		326	.noide:
		327	mov eax, [hdpos]
		328	sub eax, 80h
		329	cmp byte [BiosDisksData+eax*4+2], -1
		330	jz @f
		331	movzx eax, byte [BiosDisksData+eax*4+2]
		332	imul eax, cache_ide1-cache_ide0
		333	add eax, cache_ide0
		334	jmp .get
		335	@@:
		336	imul eax, cache_ide1-cache_ide0
		337	add eax, BiosDiskCaches
		338	.get:
		339	cmp [hdd_appl_data], 0
		340	jne .bd_appl_data
		341	mov eax, [cache_ide0_system_data-cache_ide0+eax]
		342	ret
		343	.bd_appl_data:
		344	mov eax, [cache_ide0_appl_data-cache_ide0+eax]
		345	ret
		346	;--------------------------------------------------------------------
		347	align 4
		348	calculate_cache_3:
		349	; mov ecx,cache_max*10/100
		350	; mov edi,[cache_search_start]
		351
		352	; 1 - IDE0 ... 4 - IDE3
		353	.ide0:
		354	cmp [hdpos], 1
		355	jne .ide1
		356	cmp [hdd_appl_data], 0
		357	jne .ide0_appl_data
		358	mov ecx, [cache_ide0_system_sad_size]
		359	mov edi, [cache_ide0_search_start]
		360	ret
		361	.ide0_appl_data:
		362	mov ecx, [cache_ide0_appl_sad_size]
		363	mov edi, [cache_ide0_appl_search_start]
		364	ret
		365	.ide1:
		366	cmp [hdpos], 2
		367	jne .ide2
		368	cmp [hdd_appl_data], 0
		369	jne .ide1_appl_data
		370	mov ecx, [cache_ide1_system_sad_size]
		371	mov edi, [cache_ide1_search_start]
		372	ret
		373	.ide1_appl_data:
		374	mov ecx, [cache_ide1_appl_sad_size]
		375	mov edi, [cache_ide1_appl_search_start]
		376	ret
		377	.ide2:
		378	cmp [hdpos], 3
		379	jne .ide3
		380	cmp [hdd_appl_data], 0
		381	jne .ide2_appl_data
		382	mov ecx, [cache_ide2_system_sad_size]
		383	mov edi, [cache_ide2_search_start]
		384	ret
		385	.ide2_appl_data:
		386	mov ecx, [cache_ide2_appl_sad_size]
		387	mov edi, [cache_ide2_appl_search_start]
		388	ret
		389	.ide3:
		390	cmp [hdpos], 4
		391	jne .noide
		392	cmp [hdd_appl_data], 0
		393	jne .ide3_appl_data
		394	mov ecx, [cache_ide3_system_sad_size]
		395	mov edi, [cache_ide3_search_start]
		396	ret
		397	.ide3_appl_data:
		398	mov ecx, [cache_ide3_appl_sad_size]
		399	mov edi, [cache_ide3_appl_search_start]
		400	ret
		401	.noide:
		402	push eax
		403	mov eax, [hdpos]
		404	sub eax, 80h
		405	cmp byte [BiosDisksData+eax*4+2], -1
		406	jz @f
		407	movzx eax, byte [BiosDisksData+eax*4+2]
		408	imul eax, cache_ide1-cache_ide0
		409	add eax, cache_ide0
		410	jmp .get
		411	@@:
		412	imul eax, cache_ide1-cache_ide0
		413	add eax, BiosDiskCaches
		414	.get:
		415	cmp [hdd_appl_data], 0
		416	jne .bd_appl_data
		417	mov ecx, [cache_ide0_system_sad_size-cache_ide0+eax]
		418	mov edi, [cache_ide0_search_start-cache_ide0+eax]
		419	pop eax
		420	ret
		421	.bd_appl_data:
		422	mov ecx, [cache_ide0_appl_sad_size-cache_ide0+eax]
		423	mov edi, [cache_ide0_appl_search_start-cache_ide0+eax]
		424	pop eax
		425	ret
		426	;--------------------------------------------------------------------
		427	align 4
		428	calculate_cache_4:
		429	; cmp edi,cache_max
		430	; 1 - IDE0 ... 4 - IDE3
		431	.ide0:
		432	cmp [hdpos], 1
		433	jne .ide1
		434	cmp [hdd_appl_data], 0
		435	jne .ide0_appl_data
		436	cmp edi, [cache_ide0_system_sad_size]
		437	ret
		438	.ide0_appl_data:
		439	cmp edi, [cache_ide0_appl_sad_size]
		440	ret
		441	.ide1:
		442	cmp [hdpos], 2
		443	jne .ide2
		444	cmp [hdd_appl_data], 0
		445	jne .ide1_appl_data
		446	cmp edi, [cache_ide1_system_sad_size]
		447	ret
		448	.ide1_appl_data:
		449	cmp edi, [cache_ide1_appl_sad_size]
		450	ret
		451	.ide2:
		452	cmp [hdpos], 3
		453	jne .ide3
		454	cmp [hdd_appl_data], 0
		455	jne .ide2_appl_data
		456	cmp edi, [cache_ide2_system_sad_size]
		457	ret
		458	.ide2_appl_data:
		459	cmp edi, [cache_ide2_appl_sad_size]
		460	ret
		461	.ide3:
		462	cmp [hdpos], 4
		463	jne .noide
		464	cmp [hdd_appl_data], 0
		465	jne .ide3_appl_data
		466	cmp edi, [cache_ide3_system_sad_size]
		467	ret
		468	.ide3_appl_data:
		469	cmp edi, [cache_ide3_appl_sad_size]
		470	ret
		471	.noide:
		472	push eax
		473	mov eax, [hdpos]
		474	sub eax, 80h
		475	cmp byte [BiosDisksData+eax*4+2], -1
		476	jz @f
		477	movzx eax, byte [BiosDisksData+eax*4+2]
		478	imul eax, cache_ide1-cache_ide0
		479	add eax, cache_ide0
		480	jmp .get
		481	@@:
		482	imul eax, cache_ide1-cache_ide0
		483	add eax, BiosDiskCaches
		484	.get:
		485	cmp [hdd_appl_data], 0
		486	jne .bd_appl_data
		487	cmp edi, [cache_ide0_system_sad_size-cache_ide0+eax]
		488	pop eax
		489	ret
		490	.bd_appl_data:
		491	cmp edi, [cache_ide0_appl_sad_size-cache_ide0+eax]
		492	pop eax
		493	ret
		494
		495	;--------------------------------------------------------------------
		496	align 4
		497	calculate_cache_5:
		498	; mov [cache_search_start],edi
		499	; 1 - IDE0 ... 4 - IDE3
		500	.ide0:
		501	cmp [hdpos], 1
		502	jne .ide1
		503	cmp [hdd_appl_data], 0
		504	jne .ide0_appl_data
		505	mov [cache_ide0_search_start], edi
		506	ret
		507	.ide0_appl_data:
		508	mov [cache_ide0_appl_search_start], edi
		509	ret
		510	.ide1:
		511	cmp [hdpos], 2
		512	jne .ide2
		513	cmp [hdd_appl_data], 0
		514	jne .ide1_appl_data
		515	mov [cache_ide1_search_start], edi
		516	ret
		517	.ide1_appl_data:
		518	mov [cache_ide1_appl_search_start], edi
		519	ret
		520	.ide2:
		521	cmp [hdpos], 3
		522	jne .ide3
		523	cmp [hdd_appl_data], 0
		524	jne .ide2_appl_data
		525	mov [cache_ide2_search_start], edi
		526	ret
		527	.ide2_appl_data:
		528	mov [cache_ide2_appl_search_start], edi
		529	ret
		530	.ide3:
		531	cmp [hdpos], 4
		532	jne .noide
		533	cmp [hdd_appl_data], 0
		534	jne .ide3_appl_data
		535	mov [cache_ide3_search_start], edi
		536	ret
		537	.ide3_appl_data:
		538	mov [cache_ide3_appl_search_start], edi
		539	ret
		540	.noide:
		541	push eax
		542	mov eax, [hdpos]
		543	sub eax, 80h
		544	cmp byte [BiosDisksData+eax*4+2], -1
		545	jz @f
		546	movzx eax, byte [BiosDisksData+eax*4+2]
		547	imul eax, cache_ide1-cache_ide0
		548	add eax, cache_ide0
		549	jmp .get
		550	@@:
		551	imul eax, cache_ide1-cache_ide0
		552	add eax, BiosDiskCaches
		553	.get:
		554	cmp [hdd_appl_data], 0
		555	jne .bd_appl_data
		556	mov [cache_ide0_search_start-cache_ide0+eax], edi
		557	pop eax
		558	ret
		559	.bd_appl_data:
		560	mov [cache_ide0_appl_search_start-cache_ide0+eax], edi
		561	pop eax
		562	ret
		563
		564	;--------------------------------------------------------------------
		565	align 4
		566	find_empty_slot_CD_cache:
		567	;-----------------------------------------------------------
		568	; find empty or read slot, flush cache if next 10% is used by write
		569	; output : edi = cache slot
		570	;-----------------------------------------------------------
		571	.search_again:
		572	call cd_calculate_cache_3
		573	.search_for_empty:
		574	inc edi
		575	call cd_calculate_cache_4
		576	jbe .inside_cache
		577	mov edi, 1
		578	.inside_cache:
		579	call cd_calculate_cache_5
		580	ret
		581	;--------------------------------------------------------------------
		582	clear_CD_cache:
		583	pusha
		584	.ide0:
		585	xor eax, eax
		586	cmp [cdpos], 1
		587	jne .ide1
		588	mov [cache_ide0_search_start], eax
		589	mov ecx, [cache_ide0_system_sad_size]
		590	mov edi, [cache_ide0_pointer]
		591	call .clear
		592	mov [cache_ide0_appl_search_start], eax
		593	mov ecx, [cache_ide0_appl_sad_size]
		594	mov edi, [cache_ide0_data_pointer]
		595	jmp .continue
		596	.ide1:
		597	cmp [cdpos], 2
		598	jne .ide2
		599	mov [cache_ide1_search_start], eax
		600	mov ecx, [cache_ide1_system_sad_size]
		601	mov edi, [cache_ide1_pointer]
		602	call .clear
		603	mov [cache_ide1_appl_search_start], eax
		604	mov ecx, [cache_ide1_appl_sad_size]
		605	mov edi, [cache_ide1_data_pointer]
		606	jmp .continue
		607	.ide2:
		608	cmp [cdpos], 3
		609	jne .ide3
		610	mov [cache_ide2_search_start], eax
		611	mov ecx, [cache_ide2_system_sad_size]
		612	mov edi, [cache_ide2_pointer]
		613	call .clear
		614	mov [cache_ide2_appl_search_start], eax
		615	mov ecx, [cache_ide2_appl_sad_size]
		616	mov edi, [cache_ide2_data_pointer]
		617	jmp .continue
		618	.ide3:
		619	mov [cache_ide3_search_start], eax
		620	mov ecx, [cache_ide3_system_sad_size]
		621	mov edi, [cache_ide3_pointer]
		622	call .clear
		623	mov [cache_ide3_appl_search_start], eax
		624	mov ecx, [cache_ide3_appl_sad_size]
		625	mov edi, [cache_ide3_data_pointer]
		626	.continue:
		627	call .clear
		628	popa
		629	ret
		630	.clear:
		631	shl ecx, 1
		632	cld
		633	rep stosd
		634	ret
		635	;--------------------------------------------------------------------
		636	align 4
		637	cd_calculate_cache:
		638	; 1 - IDE0 ... 4 - IDE3
		639	.ide0:
		640	cmp [cdpos], 1
		641	jne .ide1
		642	cmp [cd_appl_data], 0
		643	jne .ide0_appl_data
		644	mov ecx, [cache_ide0_system_sad_size]
		645	mov esi, [cache_ide0_pointer]
		646	ret
		647	.ide0_appl_data:
		648	mov ecx, [cache_ide0_appl_sad_size]
		649	mov esi, [cache_ide0_data_pointer]
		650	ret
		651	.ide1:
		652	cmp [cdpos], 2
		653	jne .ide2
		654	cmp [cd_appl_data], 0
		655	jne .ide1_appl_data
		656	mov ecx, [cache_ide1_system_sad_size]
		657	mov esi, [cache_ide1_pointer]
		658	ret
		659	.ide1_appl_data:
		660	mov ecx, [cache_ide1_appl_sad_size]
		661	mov esi, [cache_ide1_data_pointer]
		662	ret
		663	.ide2:
		664	cmp [cdpos], 3
		665	jne .ide3
		666	cmp [cd_appl_data], 0
		667	jne .ide2_appl_data
		668	mov ecx, [cache_ide2_system_sad_size]
		669	mov esi, [cache_ide2_pointer]
		670	ret
		671	.ide2_appl_data:
		672	mov ecx, [cache_ide2_appl_sad_size]
		673	mov esi, [cache_ide2_data_pointer]
		674	ret
		675	.ide3:
		676	cmp [cd_appl_data], 0
		677	jne .ide3_appl_data
		678	mov ecx, [cache_ide3_system_sad_size]
		679	mov esi, [cache_ide3_pointer]
		680	ret
		681	.ide3_appl_data:
		682	mov ecx, [cache_ide3_appl_sad_size]
		683	mov esi, [cache_ide3_data_pointer]
		684	ret
		685	;--------------------------------------------------------------------
		686	align 4
		687	cd_calculate_cache_1:
		688	; 1 - IDE0 ... 4 - IDE3
		689	.ide0:
		690	cmp [cdpos], 1
		691	jne .ide1
		692	cmp [cd_appl_data], 0
		693	jne .ide0_appl_data
		694	mov esi, [cache_ide0_pointer]
		695	ret
		696	.ide0_appl_data:
		697	mov esi, [cache_ide0_data_pointer]
		698	ret
		699	.ide1:
		700	cmp [cdpos], 2
		701	jne .ide2
		702	cmp [cd_appl_data], 0
		703	jne .ide1_appl_data
		704	mov esi, [cache_ide1_pointer]
		705	ret
		706	.ide1_appl_data:
		707	mov esi, [cache_ide1_data_pointer]
		708	ret
		709	.ide2:
		710	cmp [cdpos], 3
		711	jne .ide3
		712	cmp [cd_appl_data], 0
		713	jne .ide2_appl_data
		714	mov esi, [cache_ide2_pointer]
		715	ret
		716	.ide2_appl_data:
		717	mov esi, [cache_ide2_data_pointer]
		718	ret
		719	.ide3:
		720	cmp [cd_appl_data], 0
		721	jne .ide3_appl_data
		722	mov esi, [cache_ide3_pointer]
		723	ret
		724	.ide3_appl_data:
		725	mov esi, [cache_ide3_data_pointer]
		726	ret
		727	;--------------------------------------------------------------------
		728	align 4
		729	cd_calculate_cache_2:
		730	; 1 - IDE0 ... 4 - IDE3
		731	.ide0:
		732	cmp [cdpos], 1
		733	jne .ide1
		734	cmp [cd_appl_data], 0
		735	jne .ide0_appl_data
		736	mov eax, [cache_ide0_system_data]
		737	ret
		738	.ide0_appl_data:
		739	mov eax, [cache_ide0_appl_data]
		740	ret
		741	.ide1:
		742	cmp [cdpos], 2
		743	jne .ide2
		744	cmp [cd_appl_data], 0
		745	jne .ide1_appl_data
		746	mov eax, [cache_ide1_system_data]
		747	ret
		748	.ide1_appl_data:
		749	mov eax, [cache_ide1_appl_data]
		750	ret
		751	.ide2:
		752	cmp [cdpos], 3
		753	jne .ide3
		754	cmp [cd_appl_data], 0
		755	jne .ide2_appl_data
		756	mov eax, [cache_ide2_system_data]
		757	ret
		758	.ide2_appl_data:
		759	mov eax, [cache_ide2_appl_data]
		760	ret
		761	.ide3:
		762	cmp [cd_appl_data], 0
		763	jne .ide3_appl_data
		764	mov eax, [cache_ide3_system_data]
		765	ret
		766	.ide3_appl_data:
		767	mov eax, [cache_ide3_appl_data]
		768	ret
		769	;--------------------------------------------------------------------
		770	align 4
		771	cd_calculate_cache_3:
		772	; mov ecx,cache_max*10/100
		773	; mov edi,[cache_search_start]
		774
		775	; 1 - IDE0 ... 4 - IDE3
		776	.ide0:
		777	cmp [cdpos], 1
		778	jne .ide1
		779	cmp [cd_appl_data], 0
		780	jne .ide0_appl_data
		781	mov edi, [cache_ide0_search_start]
		782	ret
		783	.ide0_appl_data:
		784	mov edi, [cache_ide0_appl_search_start]
		785	ret
		786	.ide1:
		787	cmp [cdpos], 2
		788	jne .ide2
		789	cmp [cd_appl_data], 0
		790	jne .ide1_appl_data
		791	mov edi, [cache_ide1_search_start]
		792	ret
		793	.ide1_appl_data:
		794	mov edi, [cache_ide1_appl_search_start]
		795	ret
		796	.ide2:
		797	cmp [cdpos], 3
		798	jne .ide3
		799	cmp [cd_appl_data], 0
		800	jne .ide2_appl_data
		801	mov edi, [cache_ide2_search_start]
		802	ret
		803	.ide2_appl_data:
		804	mov edi, [cache_ide2_appl_search_start]
		805	ret
		806	.ide3:
		807	cmp [cd_appl_data], 0
		808	jne .ide3_appl_data
		809	mov edi, [cache_ide3_search_start]
		810	ret
		811	.ide3_appl_data:
		812	mov edi, [cache_ide3_appl_search_start]
		813	ret
		814	;--------------------------------------------------------------------
		815	align 4
		816	cd_calculate_cache_4:
		817	; cmp edi,cache_max
		818	; 1 - IDE0 ... 4 - IDE3
		819	.ide0:
		820	cmp [cdpos], 1
		821	jne .ide1
		822	cmp [cd_appl_data], 0
		823	jne .ide0_appl_data
		824	cmp edi, [cache_ide0_system_sad_size]
		825	ret
		826	.ide0_appl_data:
		827	cmp edi, [cache_ide0_appl_sad_size]
		828	ret
		829	.ide1:
		830	cmp [cdpos], 2
		831	jne .ide2
		832	cmp [cd_appl_data], 0
		833	jne .ide1_appl_data
		834	cmp edi, [cache_ide1_system_sad_size]
		835	ret
		836	.ide1_appl_data:
		837	cmp edi, [cache_ide1_appl_sad_size]
		838	ret
		839	.ide2:
		840	cmp [cdpos], 3
		841	jne .ide3
		842	cmp [cd_appl_data], 0
		843	jne .ide2_appl_data
		844	cmp edi, [cache_ide2_system_sad_size]
		845	ret
		846	.ide2_appl_data:
		847	cmp edi, [cache_ide2_appl_sad_size]
		848	ret
		849	.ide3:
		850	cmp [cd_appl_data], 0
		851	jne .ide3_appl_data
		852	cmp edi, [cache_ide3_system_sad_size]
		853	ret
		854	.ide3_appl_data:
		855	cmp edi, [cache_ide3_appl_sad_size]
		856	ret
		857	;--------------------------------------------------------------------
		858	align 4
		859	cd_calculate_cache_5:
		860	; mov [cache_search_start],edi
		861	; 1 - IDE0 ... 4 - IDE3
		862	.ide0:
		863	cmp [cdpos], 1
		864	jne .ide1
		865	cmp [cd_appl_data], 0
		866	jne .ide0_appl_data
		867	mov [cache_ide0_search_start], edi
		868	ret
		869	.ide0_appl_data:
		870	mov [cache_ide0_appl_search_start], edi
		871	ret
		872	.ide1:
		873	cmp [cdpos], 2
		874	jne .ide2
		875	cmp [cd_appl_data], 0
		876	jne .ide1_appl_data
		877	mov [cache_ide1_search_start], edi
		878	ret
		879	.ide1_appl_data:
		880	mov [cache_ide1_appl_search_start], edi
		881	ret
		882	.ide2:
		883	cmp [cdpos], 3
		884	jne .ide3
		885	cmp [cd_appl_data], 0
		886	jne .ide2_appl_data
		887	mov [cache_ide2_search_start], edi
		888	ret
		889	.ide2_appl_data:
		890	mov [cache_ide2_appl_search_start], edi
		891	ret
		892	.ide3:
		893	cmp [cd_appl_data], 0
		894	jne .ide3_appl_data
		895	mov [cache_ide3_search_start], edi
		896	ret
		897	.ide3_appl_data:
		898	mov [cache_ide3_appl_search_start], edi
		899	ret
		900	;--------------------------------------------------------------------
		901	;align 4
		902	;calculate_linear_to_real:
		903	; shr eax, 12
		904	; mov eax, [page_tabs+eax*4]
		905	; and eax, 0xFFFFF000
		906	; ret

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(root)/kernel/trunk/blkdev/ide_cache.inc – Rev 3712