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ConfigurationMenu.asm @ 589

Last change on this file since 589 was 589, checked in by krille_n_, 8 years ago

Changes:

BIOS: Fixed a purely cosmetic bug from r542 where, in builds containing MODULE_EBIOS, the boot menu would display an incorrect drive size (0.4 kB with MODULE_STRINGS_COMPRESSED or 0.5 kB without) for old drives with no support for LBA.
Fixed a bug from r392 where Vision_DetectAndReturnIDinAXandPortInDXifControllerPresent would return the ID in AL instead of AH (if DANGEROUS_DETECTION had been defined).
Fixed a bug from r587 in AdvAtaInit.asm that would prevent detection of QDI Vision controllers.
Also changed how the QDI Vision IDs are defined (removed the need for shifting) to avoid confusion. This fixed a potential bug from r587 in AdvAtaInit.asm where some IDs were not being shifted.
Fixed a bug in PDC20x30.asm from r587 where GetPdcIDtoAX would not return with the IDE base port in DX so DisablePdcProgrammingMode would fail.
Made some changes to ModuleDependency.inc and other files so that MODULE_ADVANCED_ATA now requires USE_386. Consequently it is no longer included in the regular AT-builds, only in the 386_8k-build.
Moved the UNROLL_SECTORS_IN_CX_TO_xWORDS macros from IDE_8bit.inc to IdeIO.inc which means it's now possible to build a BIOS without MODULE_8BIT_IDE.
XTIDECFG: Added a minimum DOS version check (since it needs DOS version 2+) to allow the program to quit gracefully in the unlikely scenario where someone tries to run it under DOS version 1.
Made some changes to Drive.asm to improve drive enumeration. The old method using GET_DOS_DRIVE_PARAMETER_BLOCK_FOR_SPECIFIC_DRIVE worked well in Windows XP but not in Windows 98 SE (in Windows or in DOS mode). The two problems were; 1) The function call would access the drives which on single floppy drive systems would cause Windows to swap between A: and B: (throwing a blue screen asking the user to insert a disk etc). 2) Only floppy drives and FAT16 drives would be available in the list of drives, no FAT32/optical/network drives.
Improved code in IdeControllerMenu.asm so that the default port addresses for all IDE interfaces are now restored when (re-)selecting the (same) type of IDE device.
Also made it impossible to select a device type unless the required module is included in the loaded BIOS.
The version check done when loading a BIOS now uses the FLASH_SIGNATURE definition from Version.inc. Any changes affecting RomVars now only requires updating that definition. This means that changes to RomVars must be implemented in both the BIOS and XTIDECFG before being committed to the repository.
Added a compatibility fix for 3Com 3C503 cards to the ROM checksumming code in Buffers.asm (Buffers_GenerateChecksum).
SerDrive: Made some minor changes to file names and paths to improve compatibility with case sensitive environments.
BIOSDRVS: Made a minor size optimization which as a side effect also makes it compatible with all DOS versions including DOS version 1.
Library: Renamed the WAIT_RETRACE_IF_NECESSARY_THEN macro to CALL_WAIT_FOR_RETRACE_IF_NECESSARY_THEN and made a tail-call-optimized version of it (JMP_WAIT_FOR_RETRACE_IF_NECESSARY_THEN).
A speed optimization to the eRCL_IM macro for 386 and higher. This change breaks emulation in the sense that the macro will fail when given a memory operand as the first parameter.
Other minor optimizations and fixes.

File size: 15.6 KB

Rev	Line
[57]	1	; Project name : XTIDE Universal BIOS Configurator v2
	2	; Description : "Configure XTIDE Universal BIOS" menu structs and functions.
	3
[376]	4	;
[380]	5	; XTIDE Universal BIOS and Associated Tools
[526]	6	; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
[376]	7	;
	8	; This program is free software; you can redistribute it and/or modify
	9	; it under the terms of the GNU General Public License as published by
	10	; the Free Software Foundation; either version 2 of the License, or
	11	; (at your option) any later version.
[380]	12	;
[376]	13	; This program is distributed in the hope that it will be useful,
	14	; but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
[380]	16	; GNU General Public License for more details.
[376]	17	; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
[380]	18	;
[376]	19
[57]	20	; Section containing initialized data
	21	SECTION .data
	22
	23	ALIGN WORD_ALIGN
	24	g_MenupageForConfigurationMenu:
	25	istruc MENUPAGE
	26	at MENUPAGE.fnEnter, dw ConfigurationMenu_EnterMenuOrModifyItemVisibility
[59]	27	at MENUPAGE.fnBack, dw MainMenu_EnterMenuOrModifyItemVisibility
[497]	28	at MENUPAGE.wMenuitems, dw 11
[57]	29	iend
	30
	31	g_MenuitemConfigurationBackToMainMenu:
	32	istruc MENUITEM
	33	at MENUITEM.fnActivate, dw MainMenu_EnterMenuOrModifyItemVisibility
	34	at MENUITEM.szName, dw g_szItemCfgBackToMain
	35	at MENUITEM.szQuickInfo, dw g_szItemCfgBackToMain
	36	at MENUITEM.szHelp, dw g_szItemCfgBackToMain
	37	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE
	38	at MENUITEM.bType, db TYPE_MENUITEM_PAGEBACK
	39	iend
	40
	41	g_MenuitemConfigurationPrimaryIdeController:
	42	istruc MENUITEM
	43	at MENUITEM.fnActivate, dw PrimaryIdeController
	44	at MENUITEM.szName, dw g_szItemCfgIde1
	45	at MENUITEM.szQuickInfo, dw g_szNfoCfgIde
	46	at MENUITEM.szHelp, dw g_szNfoCfgIde
	47	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE
	48	at MENUITEM.bType, db TYPE_MENUITEM_PAGENEXT
	49	iend
	50
	51	g_MenuitemConfigurationSecondaryIdeController:
	52	istruc MENUITEM
	53	at MENUITEM.fnActivate, dw SecondaryIdeController
	54	at MENUITEM.szName, dw g_szItemCfgIde2
	55	at MENUITEM.szQuickInfo, dw g_szNfoCfgIde
	56	at MENUITEM.szHelp, dw g_szNfoCfgIde
	57	at MENUITEM.bFlags, db NULL
	58	at MENUITEM.bType, db TYPE_MENUITEM_PAGENEXT
	59	iend
	60
	61	g_MenuitemConfigurationTertiaryIdeController:
	62	istruc MENUITEM
	63	at MENUITEM.fnActivate, dw TertiaryIdeController
	64	at MENUITEM.szName, dw g_szItemCfgIde3
	65	at MENUITEM.szQuickInfo, dw g_szNfoCfgIde
	66	at MENUITEM.szHelp, dw g_szNfoCfgIde
	67	at MENUITEM.bFlags, db NULL
	68	at MENUITEM.bType, db TYPE_MENUITEM_PAGENEXT
	69	iend
	70
	71	g_MenuitemConfigurationQuaternaryIdeController:
	72	istruc MENUITEM
	73	at MENUITEM.fnActivate, dw QuaternaryIdeController
	74	at MENUITEM.szName, dw g_szItemCfgIde4
	75	at MENUITEM.szQuickInfo, dw g_szNfoCfgIde
	76	at MENUITEM.szHelp, dw g_szNfoCfgIde
	77	at MENUITEM.bFlags, db NULL
	78	at MENUITEM.bType, db TYPE_MENUITEM_PAGENEXT
	79	iend
	80
	81	g_MenuitemConfigurationBootMenuSettings:
	82	istruc MENUITEM
[59]	83	at MENUITEM.fnActivate, dw BootMenuSettingsMenu_EnterMenuOrModifyItemVisibility
[57]	84	at MENUITEM.szName, dw g_szItemCfgBootMenu
	85	at MENUITEM.szQuickInfo, dw g_szNfoCfgBootMenu
	86	at MENUITEM.szHelp, dw g_szNfoCfgBootMenu
[109]	87	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE
[57]	88	at MENUITEM.bType, db TYPE_MENUITEM_PAGENEXT
	89	iend
	90
[497]	91	g_MenuitemAutoConfigure:
	92	istruc MENUITEM
	93	at MENUITEM.fnActivate, dw AutoConfigure_ForThisSystem
	94	at MENUITEM.szName, dw g_szItemAutoConfigure
	95	at MENUITEM.szQuickInfo, dw g_szNfoAutoConfigure
	96	at MENUITEM.szHelp, dw g_szNfoAutoConfigure
	97	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE \| FLG_MENUITEM_MODIFY_MENU
	98	at MENUITEM.bType, db TYPE_MENUITEM_ACTION
	99	iend
	100
[57]	101	g_MenuitemConfigurationFullOperatingMode:
	102	istruc MENUITEM
[108]	103	at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
[59]	104	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromShiftedItemInDSSI
[57]	105	at MENUITEM.szName, dw g_szItemCfgFullMode
	106	at MENUITEM.szQuickInfo, dw g_szNfoCfgFullMode
	107	at MENUITEM.szHelp, dw g_szHelpCfgFullMode
[457]	108	at MENUITEM.bFlags, db FLG_MENUITEM_MODIFY_MENU \| FLG_MENUITEM_FLAGVALUE
[108]	109	at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE
[57]	110	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw ROMVARS.wFlags
	111	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgCfgFullMode
[108]	112	at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiceBooleanFlag
[57]	113	at MENUITEM.itemValue + ITEM_VALUE.rgszValueToStringLookup, dw g_rgszValueToStringLookupForFlagBooleans
	114	at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw FLG_ROMVARS_FULLMODE
	115	iend
	116
	117	g_MenuitemConfigurationKiBtoStealFromRAM:
	118	istruc MENUITEM
	119	at MENUITEM.fnActivate, dw Menuitem_ActivateUnsignedInputForMenuitemInDSSI
	120	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteUnsignedValueStringToBufferInESDIfromItemInDSSI
	121	at MENUITEM.szName, dw g_szItemCfgStealSize
	122	at MENUITEM.szQuickInfo, dw g_szNfoCfgStealSize
	123	at MENUITEM.szHelp, dw g_szHelpCfgStealSize
	124	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE \| FLG_MENUITEM_BYTEVALUE
	125	at MENUITEM.bType, db TYPE_MENUITEM_UNSIGNED
	126	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw ROMVARS.bStealSize
	127	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgCfgStealSize
	128	at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 1
	129	at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw 255
	130	iend
	131
	132	g_MenuitemConfigurationIdeControllers:
	133	istruc MENUITEM
[204]	134	at MENUITEM.fnActivate, dw ActivateInputForNumberOfIdeControllersMenuitemInDSSI
[57]	135	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteUnsignedValueStringToBufferInESDIfromItemInDSSI
	136	at MENUITEM.szName, dw g_szItemCfgIdeCnt
	137	at MENUITEM.szQuickInfo, dw g_szNfoCfgIdeCnt
	138	at MENUITEM.szHelp, dw g_szNfoCfgIdeCnt
[206]	139	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE \| FLG_MENUITEM_MODIFY_MENU \| FLG_MENUITEM_BYTEVALUE
[57]	140	at MENUITEM.bType, db TYPE_MENUITEM_UNSIGNED
	141	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw ROMVARS.bIdeCnt
	142	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgCfgIdeCnt
	143	at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 1
[204]	144	at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw MAX_ALLOWED_IDE_CONTROLLERS
[57]	145	iend
	146
[380]	147	g_MenuitemConfigurationIdleTimeout:
	148	istruc MENUITEM
	149	at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
	150	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromRawItemInDSSI
	151	at MENUITEM.szName, dw g_szItemCfgIdleTimeout
	152	at MENUITEM.szQuickInfo, dw g_szNfoCfgIdleTimeout
	153	at MENUITEM.szHelp, dw g_szHelpCfgIdleTimeout
[457]	154	at MENUITEM.bFlags, db FLG_MENUITEM_BYTEVALUE \| FLG_MENUITEM_CHOICESTRINGS
[380]	155	at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE
	156	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw ROMVARS.bIdleTimeout
	157	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgCfgIdleTimeout
	158	at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiceIdleTimeout
	159	at MENUITEM.itemValue + ITEM_VALUE.rgwChoiceToValueLookup, dw g_rgwChoiceToValueLookupForIdleTimeout
	160	at MENUITEM.itemValue + ITEM_VALUE.rgszChoiceToStringLookup, dw g_rgszChoiceToStringLookupForIdleTimeout
	161	iend
[57]	162
[380]	163	g_rgwChoiceToValueLookupForIdleTimeout:
	164	%assign i -12
	165	%rep 21
	166	%assign i i+12
	167	dw i ; i / 12 = 0 (disabled) or 1...20 minutes
	168	%endrep
	169	%rep 4
	170	%assign i i+1
	171	dw i ; 241...244 = (i - 240) * 30 minutes
	172	%endrep
	173	g_rgszChoiceToStringLookupForIdleTimeout:
	174	%assign i 0
	175	%rep 25
	176	dw g_szIdleTimeoutChoice%[i]
	177	%assign i i+1
	178	%endrep
[589]	179	dw NULL
[380]	180
[589]	181
[57]	182	; Section containing code
	183	SECTION .text
	184
	185	;--------------------------------------------------------------------
	186	; MainMenu_EnterMenuOrModifyItemVisibility
	187	; Parameters:
	188	; SS:BP: Menu handle
	189	; Returns:
	190	; Nothing
	191	; Corrupts registers:
	192	; All, except BP
	193	;--------------------------------------------------------------------
	194	ALIGN JUMP_ALIGN
	195	ConfigurationMenu_EnterMenuOrModifyItemVisibility:
	196	push cs
	197	pop ds
	198	call .DisableAllIdeControllerMenuitems
	199	call .EnableIdeControllerMenuitemsBasedOnConfiguration
[457]	200	call .EnableOrDisableOperatingModeSelection
[57]	201	call .EnableOrDisableKiBtoStealFromRAM
[457]	202	call .EnableOrDisableIdleTimeout
[204]	203	call LimitIdeControllersForLiteMode
[57]	204	mov si, g_MenupageForConfigurationMenu
	205	jmp Menupage_ChangeToNewMenupageInDSSI
	206
	207	;--------------------------------------------------------------------
	208	; .DisableAllIdeControllerMenuitems
	209	; .EnableIdeControllerMenuitemsBasedOnConfiguration
	210	; Parameters:
	211	; SS:BP: Menu handle
	212	; Returns:
	213	; Nothing
	214	; Corrupts registers:
[204]	215	; AX, BX, CX, DI, ES
[57]	216	;--------------------------------------------------------------------
	217	ALIGN JUMP_ALIGN
	218	.DisableAllIdeControllerMenuitems:
	219	mov cx, MAX_ALLOWED_IDE_CONTROLLERS-1
[567]	220	mov ax, DisableMenuitemFromCSBX
	221	jmp SHORT .Go
[57]	222
	223	ALIGN JUMP_ALIGN
	224	.EnableIdeControllerMenuitemsBasedOnConfiguration:
[204]	225	call Buffers_GetIdeControllerCountToCX
[57]	226	dec cx ; Primary always enabled
[204]	227	jz SHORT .PrimaryControllerAlreadyEnabled
[567]	228	mov ax, EnableMenuitemFromCSBX
	229	.Go:
[57]	230	mov bx, g_MenuitemConfigurationSecondaryIdeController
	231	ALIGN JUMP_ALIGN
[567]	232	.EnableOrDisableNextIdeControllerMenuitem:
	233	call ax
[57]	234	add bx, BYTE MENUITEM_size
[567]	235	loop .EnableOrDisableNextIdeControllerMenuitem
[57]	236	.PrimaryControllerAlreadyEnabled:
	237	ret
	238
	239
	240	;--------------------------------------------------------------------
[457]	241	; .EnableOrDisableOperatingModeSelection
	242	; Parameters:
	243	; SS:BP: Menu handle
	244	; Returns:
	245	; Nothing
	246	; Corrupts registers:
	247	; BX, DI, ES
	248	;--------------------------------------------------------------------
	249	ALIGN JUMP_ALIGN
	250	.EnableOrDisableOperatingModeSelection:
	251	mov bx, g_MenuitemConfigurationFullOperatingMode
	252	call Buffers_IsXTbuildLoaded
	253	je SHORT .EnableMenuitemFromCSBX
	254	jmp SHORT .DisableMenuitemFromCSBX
	255
	256
	257	;--------------------------------------------------------------------
[57]	258	; .EnableOrDisableKiBtoStealFromRAM
	259	; Parameters:
	260	; SS:BP: Menu handle
	261	; Returns:
	262	; Nothing
	263	; Corrupts registers:
	264	; AX, BX, CX
	265	;--------------------------------------------------------------------
	266	ALIGN JUMP_ALIGN
	267	.EnableOrDisableKiBtoStealFromRAM:
[59]	268	call Buffers_GetRomvarsFlagsToAX
[57]	269	mov bx, g_MenuitemConfigurationKiBtoStealFromRAM
	270	test ax, FLG_ROMVARS_FULLMODE
	271	jz SHORT .DisableMenuitemFromCSBX
[457]	272	jmp SHORT .EnableMenuitemFromCSBX
	273
	274
	275	;--------------------------------------------------------------------
	276	; .EnableOrDisableIdleTimeout
	277	; Parameters:
	278	; SS:BP: Menu handle
	279	; Returns:
	280	; Nothing
	281	; Corrupts registers:
	282	; AX, BX
	283	;--------------------------------------------------------------------
	284	ALIGN JUMP_ALIGN
	285	.EnableOrDisableIdleTimeout:
	286	call Buffers_GetRomvarsFlagsToAX
	287	mov bx, g_MenuitemConfigurationIdleTimeout
[589]	288	test al, FLG_ROMVARS_MODULE_POWER_MANAGEMENT
[457]	289	jz SHORT .DisableMenuitemFromCSBX
[204]	290	; Fall to .EnableMenuitemFromCSBX
[57]	291
[153]	292
[57]	293	;--------------------------------------------------------------------
	294	; .EnableMenuitemFromCSBX
	295	; .DisableMenuitemFromCSBX
	296	; Parameters:
	297	; CS:BX: Ptr to MENUITEM
	298	; Returns:
	299	; Nothing
	300	; Corrupts registers:
	301	; Nothing
	302	;--------------------------------------------------------------------
	303	ALIGN JUMP_ALIGN
	304	.EnableMenuitemFromCSBX:
[567]	305	jmp EnableMenuitemFromCSBX
[57]	306
	307	ALIGN JUMP_ALIGN
	308	.DisableMenuitemFromCSBX:
[567]	309	jmp DisableMenuitemFromCSBX
[57]	310
	311
	312	;--------------------------------------------------------------------
	313	; MENUITEM activation functions (.fnActivate)
	314	; Parameters:
	315	; SS:BP: Ptr to MENU
	316	; Returns:
	317	; Nothing
	318	; Corrupts registers:
	319	; All, except segments
	320	;--------------------------------------------------------------------
	321	ALIGN JUMP_ALIGN
	322	PrimaryIdeController:
	323	mov bx, ROMVARS.ideVars0
	324	jmp SHORT DisplayIdeControllerMenu
	325
	326	ALIGN JUMP_ALIGN
	327	SecondaryIdeController:
	328	mov bx, ROMVARS.ideVars1
	329	jmp SHORT DisplayIdeControllerMenu
	330
	331	ALIGN JUMP_ALIGN
	332	TertiaryIdeController:
	333	mov bx, ROMVARS.ideVars2
	334	jmp SHORT DisplayIdeControllerMenu
	335
	336	ALIGN JUMP_ALIGN
	337	QuaternaryIdeController:
	338	mov bx, ROMVARS.ideVars3
	339	; Fall to DisplayIdeControllerMenu
	340
	341	ALIGN JUMP_ALIGN
	342	DisplayIdeControllerMenu:
	343	call IdeControllerMenu_InitializeToIdevarsOffsetInBX
	344	jmp IdeControllerMenu_EnterMenuOrModifyItemVisibility
[204]	345
	346
	347	ALIGN JUMP_ALIGN
	348	ActivateInputForNumberOfIdeControllersMenuitemInDSSI:
	349	call Menuitem_ActivateUnsignedInputForMenuitemInDSSI
	350	; Fall to LimitIdeControllersForLiteMode
	351
	352	;--------------------------------------------------------------------
	353	; LimitIdeControllersForLiteMode
	354	; Parameters:
	355	; SS:BP: Menu handle
	356	; Returns:
	357	; Nothing
	358	; Corrupts registers:
	359	; AX, CX, DI
	360	;--------------------------------------------------------------------
	361	ALIGN JUMP_ALIGN
	362	LimitIdeControllersForLiteMode:
	363	push es
	364	call Buffers_GetIdeControllerCountToCX
	365	mov [es:di+ROMVARS.bIdeCnt], cl
	366	CALL_MENU_LIBRARY GetHighlightedItemToAX
	367	CALL_MENU_LIBRARY RefreshItemFromAX
	368	pop es
[258]	369	; Fall to ConfigurationMenu_CheckAndMoveSerialDrivesToBottom
	370
	371	;----------------------------------------------------------------------
	372	; ConfigurationMenu_CheckAndMoveSerialDrivesToBottom
	373	;
[380]	374	; Checks to ensure that serial adapters are at the end of the
	375	; IDEVARS structures list, as serial floppies (if present) need to be
[258]	376	; the last drives detected by the BIOS. If there are other controllers
	377	; after a serial controller, the other controllers are moved up on the list
	378	; and the serial controller is placed at the end of the list.
	379	;
	380	; Parameters:
	381	; SS:BP: Menu handle
	382	; Returns:
	383	; Nothing
	384	; Corrupts registers:
	385	; All
[380]	386	;----------------------------------------------------------------------
	387	ConfigurationMenu_CheckAndMoveSerialDrivesToBottom:
[258]	388	push es
	389	push ds
	390	push di
	391	push si
	392
	393	call Buffers_GetIdeControllerCountToCX ; will also set ES:DI to point to file buffer
	394	push es
	395	pop ds
[589]	396	mov dx, cx ; Controller count to DL (will always be at least 1) while also clearing notification flag in DH
[258]	397
[380]	398	lea bx, [di+ROMVARS.ideVars0] ; add in offset of first idevars
[258]	399
	400	.outerLoop:
	401	mov di, bx ; start of idevars
	402	xor si, si ; first serial found
	403	xor ax, ax ; first non-serial found
	404	mov cl, dl ; idevars count
	405
	406	.loop:
[589]	407	cmp BYTE [di+IDEVARS.bDevice], DEVICE_SERIAL_PORT
	408	jne SHORT .notSerial
[258]	409
[380]	410	test si, si ; record the first serial controller that we find
[589]	411	jnz SHORT .next
[258]	412	mov si, di
[567]	413	SKIP2B f
[258]	414
	415	.notSerial:
	416	mov ax, di ; record the last non-serial controller that we find
	417
[380]	418	.next:
[258]	419	add di, IDEVARS_size
	420	loop .loop
	421
[380]	422	test si, si ; no serial drives, nothing to do
[589]	423	jz SHORT .done
[380]	424	cmp si, ax ; serial port is already later on the list than any other controllers
[589]	425	ja SHORT .done ; (also takes care of the case where there are no other controllers)
[258]	426
	427	;
	428	; move serial to end of list, others up
	429	;
	430	cld
	431
	432	mov ax, di ; save end pointer of list after scan
	433
	434	sub sp, IDEVARS_size ; copy serial to temporary space on stack
	435
	436	mov di, sp
	437
	438	push ss
	439	pop es
	440
[589]	441	%if IDEVARS_size & 1
	442	mov cl, IDEVARS_size
[258]	443	rep movsb
[589]	444	%else
	445	mov cl, IDEVARS_size / 2
	446	rep movsw
	447	%endif
[258]	448
[380]	449	lea di, [si-IDEVARS_size] ; move up all the idevars below the serial, by one slot
[258]	450
	451	mov cx, ax ; restore end pointer of list, subtract off end of serial idevars
	452	sub cx, si
	453
	454	push ds
	455	pop es
	456
	457	rep movsb
	458
	459	mov si, sp ; place serial (currently on the stack) at bottom of list
	460	push ss
	461	pop ds
	462	; di is already at last IDEVARS position
[380]	463
[589]	464	%if IDEVARS_size & 1
	465	mov cl, IDEVARS_size
[258]	466	rep movsb
[589]	467	%else
	468	mov cl, IDEVARS_size / 2
	469	rep movsw
	470	%endif
[258]	471
[380]	472	add sp, IDEVARS_size
[258]	473
	474	push es
	475	pop ds
	476
	477	mov dh, 1 ; set flag that we have done a relocation
[380]	478
[589]	479	jmp SHORT .outerLoop
[258]	480
	481	.done:
	482	pop si
	483	pop di
	484	pop ds
	485	pop es
	486
	487	test dh, dh
[589]	488	jz SHORT .noWorkDone
[380]	489
[258]	490	mov dx, g_szSerialMoved
	491	call Dialogs_DisplayNotificationFromCSDX
	492
[380]	493	.noWorkDone:
[457]	494	ret

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source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/Menupages/ConfigurationMenu.asm @ 589

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