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AIR-BOOT.ASM@ 49

Last change on this file since 49 was 49, checked in by Ben Rietbroek, 12 years ago

Fixed a nasty bug when eCS phase1 is active [2012-05-13]

WARNING!!

All commits upto and including the commit of [2012-05-13] contain
a severe bug!! Building from these sources and then disabling
the 'force LBA' feature while also using the drive-letter feature or
editing the label can DESTROY THE MBR on ALL ATTACHED DISKS!!
DO NOT DISABLE 'FORCE LBA USAGE' WHEN BUILT FROM THE THESE COMMITS!!

Fixes

o Bug Description

When creating a partition in a free space between partitions for
eCS installation, the phase1 boot-through code would calculate the
wrong index for the new partition. As a result the next partition
would be auto-booted instead of the newly installed system.
This bug is also present in v1.07.

o Quick Fix

Run PARTSCAN_ScanForPartitions for a second time when eCS phase1
is active. This resyncs the PartitionXref table.

File size: 69.4 KB

Rev	Line
[40]	1	;
[29]	2	; AiR-BOOT (c) Copyright 1998-2008 M. Kiewitz
	3	;
	4	; This file is part of AiR-BOOT
	5	;
	6	; AiR-BOOT is free software: you can redistribute it and/or modify it under
	7	; the terms of the GNU General Public License as published by the Free
	8	; Software Foundation, either version 3 of the License, or (at your option)
	9	; any later version.
	10	;
	11	; AiR-BOOT is distributed in the hope that it will be useful, but WITHOUT ANY
	12	; WARRANTY: without even the implied warranty of MERCHANTABILITY or FITNESS
	13	; FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
	14	; details.
	15	;
	16	; You should have received a copy of the GNU General Public License along with
	17	; AiR-BOOT. If not, see <http://www.gnu.org/licenses/>.
	18	;
[7]	19
[36]	20
[31]	21	;------------------------------------------------------------------------------
[46]	22	; AiR-BOOT / DEFINITIONS
[31]	23	;------------------------------------------------------------------------------
[30]	24	;
[7]	25
[46]	26	;
	27	; Include AiR-BOOT Version Information.
	28	;
	29	Include VERSION.INC
[30]	30
[46]	31	;
	32	; Include OS/2 BLDLEVEL Information.
	33	;
	34	Include BLDLEVEL.INC
	35
	36
[36]	37	; -------------------------
	38	; Rousseau: JUMPS disabled
	39	; -------------------------
[30]	40	; We actually don't want to use this directive because it generates extra
	41	; NOP instructions that we can do without.
	42	; Relative conditional jumps that are out-of-range are manually reworked by
	43	; skipping an unconditional jump to the target on base of complementary
	44	; condition logic and temporary labels.
[31]	45	; TASM also has a bug in that when the .ERR2 directive is used when
	46	; the .386 directive is in effect, the JUMPS directive is also active
	47	; and cannot be turned off.
[30]	48	; NOJUMPS seems to have no effect in this situation.
	49	; In this case 4 NOP instructions are generated after forward referencing jump
	50	; instructions, to allow for automatic recoding by TASM.
	51	; This seems to be a TASM bug. (v2,v3,v4, dunno v5)
[43]	52	IFDEF TASM
	53	;~ JUMPS
	54	ENDIF
[30]	55
	56	;
	57	; If defined then each module is prefixed with it's name.
	58	; This is used for debugging purposes.
	59	; It should be off in release code.
	60	;
[37]	61	;ModuleNames equ 1
[30]	62
	63
	64	;
	65	; The first harddisk is BIOS coded 80h.
	66	; This makes a total of 128 disk could be supported using this coding.
	67	; This value is used to store disk-information and this info is allocated
	68	; in the BSS.
	69	;
[37]	70	MaxDisks equ 64
[30]	71
	72
	73
[45]	74
[31]	75	;
[45]	76	; Include Debug Modules and enable COM-port debugging.
	77	;
[46]	78	;~ AUX_DEBUG EQU
[45]	79
	80
	81
	82
	83
	84	;
[31]	85	; bits 7-5 = datarate
	86	; (000=110,001=150,010=300,011=600,100=1200,101=2400,110=4800,111=9600 bps)
	87	; bits 4-3 = parity
	88	; (00 or 10 = none, 01 = odd, 11 = even)
	89	; bit 2 = stop-bits
	90	; (set = 2 stop-bits, clear = 1 stop-bit)
	91	; bits 1-0 = data-bits
	92	; (00 = 5, 01 = 6, 10 = 7, 11 = 8)
	93	;
[30]	94
[31]	95	; 9600 bps, no parity, 1 stop-bit, 8 bits per char
[43]	96	AUX_INIT_PARMS EQU 11100011b
[31]	97
[43]	98	; Com-port for debugging, 0 is disabled
	99	BIOS_COM_PORT EQU 1
	100
[31]	101	; Default word value for BIOS_AuxParms variable
	102	; Note that is has moved since v1.07
[43]	103	BIOS_AUXPARMS_DEFAULT EQU (AUX_INIT_PARMS SHL 8) OR BIOS_COM_PORT
[31]	104
[43]	105
	106
	107
[30]	108	;
[7]	109	; If ReleaseCode is not defined, it will produce debug-able code...
[30]	110	;
[37]	111	ReleaseCode equ -1
[7]	112
[31]	113
[30]	114	;
[37]	115	; All Special Equ's for this project
[30]	116	;
[7]	117
[31]	118	; Use different addresses depending on whether in pre-boot
[37]	119	; or debug (dos) environment.
[7]	120	IFDEF ReleaseCode
[37]	121	StartBaseSeg equ 00000h ; Pre-boot, we are in low memory
	122	StartBasePtr equ 07C00h ; BIOS starts our MBR at 0:7C00
	123	ELSE
	124	; Rousseau: where does this value come from ?
	125	; Should be CS.
	126	; Rectified in actual code by ignoring this value.
	127	StartBaseSeg equ 03A98h ; Adjust to DOS segment
	128	StartBasePtr equ 00100h ; We are a .COM file, DOS is active
[7]	129	ENDIF
	130
[30]	131	; Address labels after code-move
[31]	132	BootBaseSeg equ 08000h ; Pre-boot, in the low 640K
[30]	133	BootBasePtr equ 0h ; We put our MBR to this location
[31]	134	BootBaseExec equ BootBasePtr+offset MBR_RealStart
	135	StackSeg equ 07000h ; Put the stack below the code
[30]	136
	137	; Video pages, no INT 10h is used for menu-drawing etc.
[7]	138	VideoIO_Page0 equ 0B800h
	139	VideoIO_Page1 equ 0B900h
	140	VideoIO_Page2 equ 0BA00h
	141	VideoIO_Page4 equ 0BC00h
	142	VideoIO_FXSegment equ 0A000h
	143
[46]	144	; Include some macro's
[37]	145	Include ../INCLUDE/ASM.INC
[7]	146
[30]	147	; Special line-drawing characters
[37]	148	TextChar_WinLineRight equ 0C4h ; 'Ä'
	149	TextChar_WinLineDown equ 0B3h ; '³'
	150	TextChar_WinRep1 equ 0D1h ; 'Ñ'
	151	TextChar_WinRep2 equ 0C5h ; 'Å'
	152	TextChar_WinRep3 equ 0CFh ; 'Ï'
	153	TextChar_WinRep4 equ 0B5h ; 'µ'
	154	TextChar_WinRep5 equ 0C6h ; 'Æ'
	155	TextChar_WinRep6 equ 0D8h ; 'Ø'
[7]	156
	157	; Offsets for Partition-Entries in MBR/EPRs
[37]	158	LocBRPT_LenOfEntry equ 16 ; Length of a standard MBR or EPR entry
	159	LocBRPT_Flags equ 0 ; Bootable, Hidden, etc.
	160	LocBRPT_BeginCHS equ 1 ; Combined 10-bits cyl with 6 bits
	161	LocBRPT_BeginHead equ 1 ; Start head (0<=H<255) 255 is invalid !
	162	LocBRPT_BeginSector equ 2 ; Start sector (1<=S<=255)
	163	LocBRPT_BeginCylinder equ 3 ; Start cylinder (0<=C<[1024,16384,65536,n])
	164	LocBRPT_SystemID equ 4 ; Type of system using the partition
	165	LocBRPT_EndCHS equ 5 ; Same for end of partition
	166	LocBRPT_EndHead equ 5
	167	LocBRPT_EndSector equ 6
	168	LocBRPT_EndCylinder equ 7
	169	LocBRPT_RelativeBegin equ 8
	170	LocBRPT_AbsoluteLength equ 12
[7]	171
[37]	172	LocBR_Magic equ 510
[7]	173
[29]	174
[34]	175	; Used as a quick compare in LVM.ASM
[37]	176	LocLVM_SignatureByte0 equ 02h
[30]	177
[34]	178	; Offsets for LVM Information Sector.
	179	; These are relative to the start of the LVM sector.
[37]	180	LocLVM_SignatureStart equ 00h ; 02h,'RMBPMFD' (8 bytes)
	181	LocLVM_CRC equ 08h ; CRC is a DWORD
	182	LocLVM_Heads equ 1ch ; Number of heads
	183	LocLVM_Secs equ 20h ; Sectors per Track
	184	LocLVM_DiskName equ 24h ; Name of the disk
	185	LocLVM_StartOfEntries equ 3ch ; (contains maximum of 4 entries)
	186	LocLVM_LenOfEntry equ 3ch ; Length of an LVM-entry
[30]	187
[34]	188	; An LVM info-sector can contain information on max. 4 partitions.
	189	; All 4 entries will be used when there 4 primary partitions defined.
	190	; For logical partitions, the LVM info-sector is located below the start
	191	; of the logical partition and only one LVM entry is used in that logical
	192	; LVM info-sector.
[37]	193	LocLVM_MaxEntries equ 4 ; Max entries in an LVM-sector
[30]	194
[34]	195	; Offsets for LVM entry.
	196	; These are relative to the start of the entry.
[37]	197	LocLVM_VolumeID equ 00h ; is DWORD
	198	LocLVM_PartitionID equ 04h ; is DWORD
	199	LocLVM_PartitionSize equ 08h ; is DWORD
	200	LocLVM_PartitionStart equ 0ch ; is DWORD
	201	LocLVM_OnBootMenu equ 10h ; is on IBM BM Bootmenu
	202	LocLVM_Startable equ 11h ; is Startable (newly installed system)
	203	LocLVM_VolumeLetter equ 12h ; is Drive Letter for partition (C-Z or 0)
	204	LocLVM_Unknown equ 13h ; unknown BYTE
	205
[34]	206	; Truncated to 11 chars when displayed in menu.
	207	; MiniLVM sets both to the same value.
	208	; Also, MiniLVM uses a 0-byte terminator, so the maximum length is 19d.
	209	; Same goes for LocLVM_DiskName.
[45]	210	; These offsets are relative to an LVM entry.
[37]	211	LocLVM_VolumeName equ 14h ; 20 bytes
	212	LocLVM_PartitionName equ 28h ; 20 bytes (Used in menu)
[30]	213
[45]	214	; LVM constants.
	215	LocLVM_LabelLen equ 14h ; Length of an LVM Label (Disk/Part/Vol)
	216	LocLVM_DiskNameLen equ 14h ; Length of an LVM DiskName
	217	LocLVM_VolumeNameLen equ 14h ; Length of an LVM VolumeName
	218	LocLVM_PartitionNameLen equ 14h ; Length of an LVM PartitionName
[30]	219
[34]	220
[45]	221
[7]	222	; Offsets for IPT (Internal Partition Table)
[37]	223	LocIPT_MaxPartitions equ partition_count ; 45 in v1.07
	224	LocIPT_LenOfSizeElement equ 6 ; Size of one Size-Element
	225	LocIPT_LenOfIPT equ 34 ; Length of an IPT-entry
	226	LocIPT_Serial equ 0 ; Serial from MBR ?
	227	LocIPT_Name equ 4 ; Name from FS or LVM (part/vol)
	228	LocIPT_Drive equ 15 ; Drive-ID (80h,81h)
	229	LocIPT_SystemID equ 16 ; Partition-Type (06,07,etc)
	230	LocIPT_Flags equ 17 ; AiR-BOOT Flags for partition (see below)
	231	LocIPT_BootRecordCRC equ 18 ; CRC of Boot-Record
	232	LocIPT_LocationBegin equ 20 ; Begin of Partition
	233	LocIPT_LocationPartTable equ 23 ; PartitionTable of Partition
	234	LocIPT_AbsoluteBegin equ 26 ; Absolute Sector of Begin
	235	LocIPT_AbsolutePartTable equ 30 ; Absolute Sector of PartTable
[7]	236
[38]	237	; Hidden Partition Table
[45]	238	;~ LocHPT_LenOfHPT equ 30 ; Length of an HPT-entry
	239	; Length of an HPT-entry ((45 * 6 bits-per-part) / 8) * 45
	240	; Packed table !
	241	LocHPT_LenOfHPT equ 34
[38]	242
[30]	243	; AiR-BOOT IPT-Flags
[37]	244	LocIPT_DefaultFlags equ 00000011b ; Don't know if boot-able :)
	245	LocIPT_DefaultNonBootFlags equ 00000010b ; ...VIBR Detection is always on
[7]	246
[37]	247	Flags_Bootable equ 00000001b
	248	Flags_VIBR_Detection equ 00000010b
	249	Flags_HideFeature equ 00000100b
	250	Flags_DriveLetter equ 00001000b ; OS/2 FAT16/HPFS only
[46]	251	Flags_ExtPartMShack equ 00010000b ; Ext. Partition M$-Hack req ?
[37]	252	Flags_NoPartName equ 01000000b
	253	Flags_NowFound equ 10000000b ; temp only in OldPartTable
	254	Flags_SpecialMarker equ 10000000b ; temp only for HiddenSetup
[7]	255
[37]	256	FileSysFlags_BootAble equ 00000001b ; Is this Partition boot-able ?
	257	FileSysFlags_FAT32 equ 00010000b ; FAT 32 specific name getting
	258	FileSysFlags_NoName equ 00100000b ; No Name - use PartitionName
	259	FileSysFlags_DriveLetter equ 01000000b ; DriveLetter Feature possible
[7]	260
[30]	261	; Navigation keys
[37]	262	Keys_Up equ 48h
	263	Keys_Down equ 50h
	264	Keys_Left equ 4Bh
	265	Keys_Right equ 4Dh
	266	Keys_PageUp equ 49h
	267	Keys_PageDown equ 51h
	268	Keys_GrayPlus equ 4Eh
	269	Keys_GrayMinus equ 4Ah
	270	Keys_Plus equ 1Bh
	271	Keys_Minus equ 35h
	272	Keys_ENTER equ 1Ch
	273	Keys_ESC equ 1h
	274	Keys_F1 equ 3Bh
	275	Keys_F10 equ 44h
	276	Keys_C equ 2Eh ; Add. Check auf Ctrl!
	277	Keys_Y equ 2Ch
	278	Keys_Z equ 15h
	279	Keys_N equ 31h
	280	Keys_TAB equ 0Fh
	281	Keys_Delete equ 53h
	282	Keys_Backspace equ 0Eh
	283	Keys_Space equ 20h
[7]	284
[37]	285	Keys_Flags_EnterSetup equ 1100b ; Strg+Alt (AL)
[7]	286
	287
[46]	288
	289
	290
	291
	292	;------------------------------------------------------------------------------
	293	; AiR-BOOT / MAIN-CODE
	294	;------------------------------------------------------------------------------
	295
[43]	296	; ------------------------------------------
	297	; Rousseau: # Changed this from .386 to .286
	298	; ------------------------------------------
	299	; Because of the TASM-bug the processor had to be changed to turn JUMPS
	300	; off. Existing movzx instructions were replaced with 286 equivalent code.
	301	; Out of range relative jumps have been recoded.
	302	; TASM still generates an extra NOP after test [mem],1
	303	; instructions.
	304	; JWasm produces tighter code.
	305	; JWasm:
	306	; With segment overrides, the address is expanded to the bit-width.
	307	; So, .386 will generate a 32-bit address, even in a USE16 segment.
	308	.286
[30]	309
[43]	310	; This influences the uses directive and other stuff,
	311	; like calling-style and local variables.
	312	; The model itself,large, has no effect because we generate
	313	; a binairy image and not a segmented executable.
[30]	314
[43]	315	; Tasm needs a memory model for USES on PROC to work.
	316	IFDEF TASM
[46]	317	;~ .model large, basic
[43]	318	.model tiny,c
	319	ENDIF
[37]	320
	321	;
	322	; This is used to switch between the original 1-segment (code_seg) and the
	323	; 2-segment (code_seg and bss_data).
	324	; The 2-segment layout was needed for JWasm because it does not treat
	325	; db ? in a code segment as bss-data, even if at the end of the code segment.
	326	; Therefore, a true BSS segment is now used.
	327	; Both the code_seg and the bss_data are grouped to the logical airboot
	328	; segment.
	329	; Note that this influences the offsets in the BSS in the list-file and
	330	; the wdis disassembly file (.WDA).
	331	; They are now segment-relative. The true offset is resolved at link
	332	; time.
	333	;
[43]	334	SEGMENTED EQU
[37]	335
	336	IFDEF SEGMENTED
[43]	337	AIRBOOT GROUP LDRIMAGE,VOLATILE
[37]	338	ENDIF
	339
[30]	340	; Our code-segment starts here.
[46]	341	LDRIMAGE SEGMENT USE16 PUBLIC 'CODE'
[7]	342
[37]	343	IFDEF SEGMENTED
[43]	344	ASSUME CS:AIRBOOT, DS:AIRBOOT, ES:nothing, SS:nothing
[37]	345	ELSE
[43]	346	ASSUME CS:LDRIMAGE,DS:LDRIMAGE,ES:nothing, SS:nothing
[37]	347	ENDIF
[30]	348
[31]	349	;==============================================================================
	350	; Sector 1
[30]	351
[46]	352	;##############################################################################
	353	; We are not a .COM file at 100h but a BINARY image
	354	; of which only the 1st sector gets loaded at 0000:07c00h
	355	; by the BIOS. The code in this 1st sector is position
	356	; independent and moves itself to a new location at 8000:0000h.
	357	; Then it jumps to a new entry-point and loads the rest of
	358	; the image to the new location.
[37]	359	org 00000h ; Sector 1
[46]	360	;##############################################################################
[30]	361
[46]	362
	363	;
[30]	364	; Start of sector 1
[46]	365	; This is the MBR.
	366	; Note the AiRBOOT signature, it's date, version and language.
	367	; Version 1.07 was intruduced in 2011, version 1.0.8 in 2012.
	368	; These new versions fix issues with huge drives, lvm and more.
	369	; For a detailed description see AIR-BOOT.HIS.
	370	;
[30]	371
[46]	372	;
[30]	373	; ---------------------------------------------
	374	; Rousseau: # Combined letter and jump offset #
	375	; ---------------------------------------------
[46]	376	; Martin had a short jump followed by the AiRBOOT signature at first.
	377	; Then he encountered strange behaviour by some M$ operating-systems
	378	; if the the first insruction was not a CLI.
[30]	379	; But there was no room to insert the CLI and of course he did not want to
	380	; change the location of the AiRBOOT signature.
	381	; He solved this by inserting the M$ needed CLI at offset 0 followed by a short
	382	; jump that uses the 'A' of the AiRBOOT signature as the jump displacement.
[46]	383	;
[30]	384
	385
[31]	386	;------------------------------------------------------------------------------
[37]	387	AiR_BOOT:
[30]	388
[46]	389	; Some M$ operating systems need a CLI
	390	; here otherwise they will go beserk
	391	; and will do funny things during
	392	; boot phase, it's laughable!
	393	cli
[7]	394
[46]	395	; JMP-Short -> MBR_Start
	396	; Uses the 'A' from the signature as the displacement !
	397	db 0EBh
[37]	398
[46]	399	; ID String, Date (DD,MM,CC,YY), Version Number, Language ID
	400	;~ db 'AiRBOOT', 24h, 02h, 20h, 12h, 01h, 08h, TXT_LanguageID
	401	InsertAirbootSignature TXT_LanguageID
[37]	402
[46]	403	; Total Sectors Count.
	404	; Will get overwritten by FIXCODE.
	405	db 1
[37]	406
[46]	407	; Total Sectors Count,
	408	; Dynamic calculation.
	409	;~ db (code_end-$)/512
[37]	410
	411
	412	MBR_CheckCode dw 0 ; Check-Sum for Code
	413
[30]	414	;
	415	; No single instruction below should be changed, added or removed in the code
	416	; below as this will cause the jump-link to go haywire.
[31]	417	;
[37]	418	MBR_Start:
	419	sti ; This opcode is dedicated to:
	420	cld ; =MICROSOFT JUMP DEPARTMENT=
[30]	421
[37]	422	; Setup some base stuff
	423	; AX got loaded wrongly for debug, changed the instructions
	424	; without modifying the number of bytes.
	425	; Don't comment-out the redundant instruction below because this
	426	; will change the number of bytes and break the jump-chain.
	427	mov ax, StartBaseSeg ; The segment we are moving ourself from (NOT USED)
	428	;mov ds, ax
	429	push cs
	430	pop ds
	431	mov si, StartBasePtr ; The offset we are moving ourself from
	432	mov ax, BootBaseSeg ; The target segment we are moving ourself to
	433	mov es, ax
	434	mov di, BootBasePtr ; The target offset we are moving ourself to
[30]	435
[37]	436	; Depending on pre-boot or debug,
	437	; only move first 512 bytes or the whole she-bang++ (65400 bytes)
	438	IFDEF ReleaseCode
	439	mov cx, 256 ; Pre-boot environment
	440	ELSE
	441	mov cx, 32700 ; Debug environment (move ~64kB)
	442	ENDIF
[30]	443
[37]	444	;
	445	; LET's MOVE OURSELVES !
	446	;
	447	rep movsw
[30]	448
[37]	449	; Code an intersegment jump to the new location
	450	db 0EAh
[46]	451	dw BootBaseExec ; This is MBR_RealStart + BootBasePtr
	452	dw BootBaseSeg ; This is 08000h
[37]	453	;jmp far ptr BootBaseSeg:BootBaseExec
[7]	454
[30]	455
	456	;
	457	; Some MBR-functions to provide absolute minimum functionality.
	458	;
	459
	460	;
	461	; Entry-point for halting the system.
	462	;
[7]	463	MBR_HaltSystem:
[37]	464	mov ax, 8600h
	465	xor cx, cx
	466	mov dx, 500
[46]	467	int 15h ; Wait to display the whole screen :]
	468	MBR_HaltSys:
	469	cli
[37]	470	jmp MBR_HaltSys
[45]	471	;db 100 dup (0)
[7]	472
[31]	473
[45]	474
	475	;
	476	; Some small space for variables.
	477	;
	478	ORIGIN 0003Ch
	479
[37]	480	; Comport settings
	481	; It had to be moved to create room for the double I13X
	482	; signature.
	483	; It cannot be in the config-area (sector 55)
[43]	484	; because that area is crc-protected and would not allow 'poking'.
	485	BIOS_AuxParms dw BIOS_AUXPARMS_DEFAULT
[31]	486
[37]	487	reserved db 6 dup('X')
[30]	488
[45]	489
[37]	490	;
	491	; We arrive here after the first jump using the 'A' of the
	492	; AiR-BOOT signature.
	493	; So we ensure the jump is always at this offset.
	494	; We jump here, because Martin needed to
	495	; insert a CLI on start and did not
	496	; want to change the AiR-BOOT signature
	497	; because of Microsoft inventions...
[45]	498	;
	499	ORIGIN 00044h
[37]	500
	501	; Jump again...
	502	; This time to the setup-code.
	503	jmp MBR_Start
	504
[30]	505	;
	506	; Entry-point when loading fails.
	507	;
[37]	508	db 'LOAD ERROR!', 0
	509	MBR_LoadError Proc Near
	510	mov si, offset $-12
	511	push cs
	512	pop ds
	513	call MBR_Teletype
	514	MBRLE_Halt:
	515	jmp MBRLE_Halt
	516	MBR_LoadError EndP
[7]	517
[30]	518	;
	519	; Entry-point when saving fails.
	520	;
[37]	521	db 'SAVE ERROR!', 0
	522	MBR_SaveError Proc Near
	523	mov si, offset $-12
	524	push cs
	525	pop ds
	526	call MBR_Teletype
	527	MBRSE_Halt:
	528	jmp MBRSE_Halt
	529	MBR_SaveError EndP
[7]	530
[30]	531
	532	; Put text on the screen using the BIOS tele-type function.
	533	; No attributes like color are supported.
[7]	534	; In: SI - Pointer to begin of string (EOS is 0)
	535	; Destroyed: SI
[37]	536	MBR_Teletype Proc Near Uses ax bx cx
	537	mov ah, 0Eh
	538	mov bx, 7
	539	MBRT_Loop:
	540	lodsb
	541	or al, al
	542	jz MBRT_End
	543	int 10h
	544	jmp MBRT_Loop
	545	MBRT_End:
	546	ret
	547	MBR_Teletype EndP
[7]	548
[30]	549	;
	550	; Rousseau: DO NOT ADD CODE TO THIS SECTION !
	551	;
	552
[7]	553	; In: BX - Base Check, DS:SI - Pointer to 512-byte-area to be included
	554	; Out: BX - Base Check Result
	555	; Destroyed: SI will get updated (+512)
[37]	556	MBR_GetCheckOfSector Proc Near Uses ax cx
	557	mov cx, 256
	558	MBRGCOS_Loop:
	559	lodsw
	560	xor ax, 0BABEh
	561	xor bx, ax
	562	loop MBRGCOS_Loop
	563	or bx, bx
	564	jnz MBRGCOS_NoFixUp
	565	mov bx, 1 ; dont allow 0, cause 0 == empty
	566	MBRGCOS_NoFixUp:
	567	ret
	568	MBR_GetCheckOfSector EndP
[7]	569
[30]	570
	571
	572
	573
	574
	575	;
	576	; This is where the rest of AiR-BOOT gets loaded.
	577	;
	578
[31]	579	;------------------------------------------------------------------------------
[7]	580	MBR_RealStart:
[37]	581	mov ax, StackSeg ; 07000h, below the moved code
	582	mov ss, ax
	583	;mov sp, 7FFFh ; Odd stack-pointer ??
	584	mov sp, 7FFEh ; Even is better
	585	mov ax, es ; ES holds segment where we moved to
	586	mov ds, ax ; Set DS==ES to Code Segment
[30]	587
[43]	588
[37]	589	; If we are in debug-mode, all code is moved already,
	590	; so we can directly jump to it.
	591	; One difference is that in debug-mode, the whole .com image is
	592	; loaded by dos while when air-boot is active from the MBR it
	593	; does the loading itself.
	594	IFNDEF ReleaseCode
	595	jmp AiR_BOOT_Start
	596	ENDIF
[30]	597
	598
[37]	599	; Load missing parts from harddrive...
	600	;mov ax, cs ; actually obsolete
	601	;mov es, ax ; actually obsolete
[30]	602
[37]	603	; Load the configuration-sectors from disk.
	604	mov bx, offset Configuration
	605	mov dx, 0080h ; First harddrive, Sector 55
	606	mov cx, 0037h ; Is 55d is config-sector
[30]	607
[37]	608	; Call the i/o-part
	609	call MBR_LoadConfig
[30]	610
[37]	611	jnc MBR_ConfigCopy_NoError
[30]	612
[37]	613	; Some error occured
	614	MBR_ConfigCopy_LoadError:
	615	call MBR_LoadError ; Will Abort BootUp
[30]	616
[37]	617	; Load the code sectors
	618	MBR_ConfigCopy_NoError:
	619	mov bx, offset FurtherMoreLoad
	620	mov dx, 0080h ; First harddrive
	621	mov cx, 0002h ; Second sector
	622	mov ah, 02h
[30]	623
[37]	624	; This location is in the code-segment.
	625	; When segment overrides are applied, the address is
	626	; expanded to the bit-with.
	627	; So the .286 or .386 directive influences the length
	628	; of the instruction, even with a USE16 segment.
	629	mov al, ds:[10h] ; Number of code sectors
	630	int 13h
	631	jnc MBR_RealStart_NoError
	632	jmp MBR_ConfigCopy_LoadError
[31]	633
	634
[37]	635	; [v1.05+]
	636	; Signature for IBM's LVM to detect our "powerful" features ;)
[45]	637	;
[37]	638	; [v1.0.8+]
	639	; Reworked MBR code to be able to create a
	640	; double 'I13X' signature.
	641	; MBR's created with LVM eCS v1.x have the signature at 0d5h
	642	; MBR's created with LVM eCS v2.x have the signature at 0d0h
	643	; See eCS bugtracker issue #3002
[45]	644	;
[37]	645	; Update: These are actually MOV EAX,'X31I' instructions
	646	; in the eCS LVM MBR-code. They are at different places in
	647	; the v1.x and v2.x LVM code.
[45]	648	; Let's protect their location.
	649	ORIGIN 000d0h
[37]	650	db 'I13X',0,'I13X',0
[31]	651
[30]	652
[37]	653	MBR_RealStart_NoError:
	654	; Now Check Code with CheckSum
	655	mov si, offset FurtherMoreLoad
[30]	656
[37]	657	;movzx cx, bptr ds:[10h]
	658	mov cl, ds:[10h]
	659	mov ch,0
[31]	660
[37]	661	xor bx, bx
	662	MBR_RealStart_CheckCodeLoop:
	663	call MBR_GetCheckOfSector
	664	loop MBR_RealStart_CheckCodeLoop
[31]	665
	666
[37]	667	cmp MBR_CheckCode, bx
	668	je MBR_RealStart_CheckSuccess
[7]	669
[37]	670	mov si, offset TXT_ERROR_Attention
	671	call MBR_Teletype
	672	mov si, offset TXT_ERROR_CheckCode
	673	call MBR_Teletype
	674	mov si, offset TXT_ERROR_CheckFailed
	675	call MBR_Teletype
	676	jmp MBR_HaltSystem
	677	MBR_RealStart_CheckSuccess:
	678	jmp AiR_BOOT_Start
[30]	679
	680
	681
	682
[37]	683
[31]	684	;------------------------------------------------------------------------------
[37]	685	Include TEXT/TXTMBR.ASM ; All translateable Text in MBR
[31]	686	;------------------------------------------------------------------------------
[30]	687
	688
	689
[31]	690	; This is an ugly kludge function to create space for the
	691	; double 'I13X' signature.
	692	; It loads the configuration sectors, but bx,cx and dx are not initialized
	693	; in this function. That's done around line 500.
	694	; Putting this few bytes here creates just enough room.
[37]	695	MBR_LoadConfig Proc Near
	696	; Changed from conditional assembler to calculated value
	697	; Fixes issue: #2987 -- "air-boot doesn't remember drive letter"
	698	; Size of the ab-configuration in 512 byte sectors
	699	mov al, (MBR_BackUpMBR - Configuration) / 200h
	700	mov ah,02h
	701	int 13h
	702	ret
	703	MBR_LoadConfig EndP
[31]	704
[35]	705
[37]	706	; Disk Signature
	707	; Note that in an LVM 2.x MBR this collides
	708	; with the dummy PTE that it uses to look for IBM-BM
	709	; on the second harddisk.
[45]	710	ORIGIN 001B8h
	711
	712	; AiR-BOOT will merge the field from the MBR it replaces.
[37]	713	db 'DSIG'
[31]	714
[45]	715	; Unused word at 01BCh.
	716	; An LVM 2.x MBR puts 0CC33h here.
	717	; AiR-BOOT will merge the field from the MBR it replaces.
[37]	718	dw '$$'
[35]	719
	720
[45]	721	;
	722	; Partition Table.
	723	;
	724	ORIGIN 001BEh
[43]	725
[45]	726	; The 4 entries just for show.
	727	; AiR-BOOT will merge them from the MBR it replaces.
[37]	728	db 16 dup('0')
	729	db 16 dup('1')
	730	db 16 dup('2')
	731	db 16 dup('3')
	732
	733	; Boot Sigbature
	734	dw 0aa55h
	735
[30]	736	; End of sector 1
	737
	738
	739
[37]	740
[45]	741
[31]	742	;==============================================================================
	743	; Sector 2
[30]	744
[37]	745	;
	746	; Here starts the second sector, sector 2
	747	;
[45]	748	ORIGIN 00200h
[30]	749
[31]	750	;
	751	; Everything beyond this point is loaded on startup
	752	; and is NOT existant at first
	753	;
[7]	754	FurtherMoreLoad:
[30]	755
	756	;
	757	; Filesystem table correlating id with name.
	758	;
	759
[37]	760	; first Normal-Partition-ID, Hidden-Partition-ID
	761	; and Default-Partition-Flags.
	762	; 01h -> Boot-Able
	763	; 10h -> FAT32 - Name Getting Scheme
	764	; 20h -> No Name To Get (use Partition Name from IPT)
	765	; 40h -> 'L' flag possible
[7]	766	db 'AiRSYS-TABLE'
[37]	767	FileSysIDs db 01h, 11h,01h, 04h,014h,01h, 06h,016h,41h, 0Eh,00Eh,01h
[29]	768	db 07h, 17h,41h, 08h,017h,21h, 35h,035h,20h,0FCh,017h,41h
	769	db 09h, 19h,11h, 0Bh,01Bh,11h, 0Ch,01Ch,11h,0EBh,0EBh,01h
[7]	770	db 63h, 63h,21h, 81h,081h,21h, 83h,083h,21h, 40h,040h,21h
	771	db 0A5h,0A5h,21h,0A6h,0A6h,21h, 82h,082h,20h,0A7h,0A7h,21h
	772	db 63h, 63h,21h, 4Dh,04Dh,21h, 4Eh,04Eh,21h, 4Fh,04Fh,21h
	773	db 01h, 01h,01h, 01h,001h,01h, 01h,001h,01h, 01h,001h,01h
	774	db 01h, 01h,01h, 01h,001h,01h, 01h,001h,01h, 01h,001h,01h
	775	db 01h, 01h,01h, 01h,001h,01h, 01h,001h,01h, 01h,001h,01h
	776	db 01h, 01h,01h,0FDh,0FDh,20h, 84h,084h,20h,0A0h,0A0h,20h
	777	db 0Ah, 0Ah,20h,0FEh,0FEh,21h,0FFh,0FFh,21h, 00h,000h,21h
	778	db 16 dup (0)
	779
[46]	780	FileSysNames db 'FAT12 ', 'FAT16 ', 'FAT16Big', 'FAT16Big'
	781	db 'HPFS ', 'NTFS ', 'LVM-Data', 'JFS '
	782	db 'FAT32 ', 'FAT32 ', 'FAT32 ', 'BeOS '
	783	db 'Unix ', 'Minix ', 'Linux ', 'Venix ' ; x row ;)
	784	db 'BSD/386 ', 'OpenBSD ', 'LinuxSwp', 'NeXTSTEP'
	785	db 'GNU HURD', 'QNX ', 'QNX ', 'QNX '
	786	db ' ', ' ', ' ', ' '
	787	db ' ', ' ', ' ', ' '
	788	db ' ', ' ', ' ', ' '
	789	db ' ', 'Kernel ', ' ', '0V-Award'
	790	; db 'OS/2 Man', 'via BIOS', 'Floppy ', 'Unknown '
	791	db 'OS2-BMGR', 'via BIOS', 'Floppy ', 'Unknown '
[7]	792	; -> 44 Partition-Types
	793
[30]	794
	795
	796
[31]	797	;==============================================================================
	798	; Sector 3
[45]	799	;
	800	; Sector 3
	801	;
	802	ORIGIN 00400h
[37]	803
	804
	805	; ##############################################
	806	; ## ENTRY-POINT AFTER ALL THE INITIAL HASSLE ##
	807	; ##############################################
[30]	808
	809
	810
[43]	811
[36]	812	AiR_BOOT_Start:
[30]	813
[36]	814
	815
	816	;
	817	; Since v1.0.8, AiR-BOOT is able to chainload IBM-BM.
	818	; When IBM-BM resides above the 1024-cylinder limit, the 'I13X'
	819	; signature is required at 3000:0000, FS needs to contain 3000h
	820	; and the 32-bit LBA address needs to follow the 'I13X' signature.
	821	; For booting IBM-BM from the second disk, a copy of the MBR of the
	822	; first disk is also required at 0000:7E00.
	823	; This information is derived from the eCS 2.x LVM MBR.
	824	;
	825	; So, now is a good time to copy the MBR of the first disk to
	826	; 0000:7E00 in case the partition that will be started is IBM-BM.
	827	; This copy is located at 8000:0000 and DS already points to this
	828	; segment.
	829	;
[37]	830	pusha ; Save all the general purpose regs
	831	push es ; We need ES too, so save its value
	832	xor ax,ax ; Segment 0000h
	833	mov es,ax ; Make ES point to it
	834	mov si,offset BootBasePtr ; Start of AiR-BOOT which has the MBR
	835	mov di,7e00h ; Destination for the MBR for IBM-BM
	836	mov cx,100h ; 256 words = 512 bytes
	837	cld ; Direction from low to high
	838	rep movsw ; Copy the 256 words of the MBR
	839	pop es ; Restore previous value of ES
	840	popa ; Restore all the general purpose regs
[36]	841
	842
[45]	843	;~ nop
	844	;~ mov ax, offset sobss
	845	;~ mov ax,offset BeginOfVariables
	846	;~ mov ax,offset [TrueSecs]
	847	;~ lea ax, [TrueSecs] ; Tasm generates mov here
	848	;~ mov ax,word ptr [TrueSecs]
	849	;~ mov ax,offset EndOfVariables
	850	;~ mov ax, offset eobss
	851	;~ nop
[36]	852
[43]	853
[45]	854
[37]	855	;jmp skip
[30]	856
[49]	857	mov al, byte ptr [CFG_Partitions]
	858	mov byte ptr [OldPartitionCount], al
[30]	859
[37]	860	; Initialize Variable-Tables, Detections, etc.
	861	call PRECRAP_Main
[30]	862
[37]	863	; Number of harddisks is now known
[30]	864
[49]	865	IFDEF AUX_DEBUG
	866	call DEBUG_DumpIPT
	867	;~ call DEBUG_DumpPartitionPointers
	868	call DEBUG_DumpPartitionXref
	869	;~ call DEBUG_DumpNewPartTable
	870	ENDIF
	871
	872	; Scan all partitions
[37]	873	call PARTSCAN_ScanForPartitions
[30]	874
[49]	875	; Display number of physical disks found
[37]	876	mov si, offset DisksFound
	877	call MBR_Teletype
	878	mov al, [TotalHarddiscs]
	879	call VideoIO_SyncPos
	880	call VideoIO_PrintByteDynamicNumber
	881	xor si,si
	882	call MBR_TeletypeNL
[30]	883
[49]	884	; Display number of partitions found
[37]	885	mov si, offset PartitionsFound
	886	call MBR_Teletype
	887	mov al, [CFG_Partitions]
	888	call VideoIO_SyncPos
	889	call VideoIO_PrintByteDynamicNumber
[30]	890
[49]	891	; Dump summier disk-info for disks found
[37]	892	xor si,si
	893	call MBR_TeletypeNL
	894	call MBR_TeletypeNL
	895	call VideoIO_SyncPos
	896	mov dl,80h
	897	call VideoIO_DumpDiskInfo
[30]	898
	899
[49]	900	IFDEF AUX_DEBUG
	901	call DEBUG_DumpIPT
	902	;~ call DEBUG_DumpPartitionPointers
	903	call DEBUG_DumpPartitionXref
	904	;~ call DEBUG_DumpNewPartTable
	905	ENDIF
[30]	906
	907
[49]	908	; ======================
	909	; == eCS PHASE1 check ==
	910	; ======================
[30]	911
[49]	912	; If the firt byte if name of the Install Volume is not 0
	913	; then we potentially have a phase1 boot.
	914	test byte ptr [eCS_InstallVolume],0ffh
	915	; Nope, so continue normally.
	916	jz MBR_Main_ContinueBoot
[36]	917
[49]	918	; Setup phase1.
	919	; It is still possible that a name was set for the
	920	; Install Volume that does not exist.
	921	; In that case CY will be clear and AL=0FFh.
	922	call PART_SetupPhase1
	923	; Oops, Install Volume not found, continue normally.
	924	jnc MBR_Main_ContinueBoot
[30]	925
	926
[49]	927	; == Install Volume Found ==
[30]	928
[49]	929	; Because the old IPT read from disk differs from the new
	930	; IPT, we need to rescan all partitions.
	931	; This causes the PartitionXref table to be filled with
	932	; correct values so the auto-boot from the new partition
	933	; works correctly.
	934	call PARTSCAN_ScanForPartitions
[30]	935
[49]	936	; Setup automatic boot to forgo the Menu.
	937	; PART_SetupPhase1 has filled in the other variables.
	938	mov byte ptr [CFG_AutomaticBoot],1
[30]	939
	940
[49]	941	IFDEF AUX_DEBUG
	942	call DEBUG_DumpIPT
	943	;~ call DEBUG_DumpPartitionPointers
	944	call DEBUG_DumpPartitionXref
	945	;~ call DEBUG_DumpNewPartTable
	946	ENDIF
[30]	947
	948
[49]	949	jmp MBR_Main_ContinueBoot
[30]	950
	951
[49]	952
	953
	954
	955	MBR_Main_ContinueBoot:
[37]	956	xor si,si
	957	call MBR_TeletypeNL
	958	xor si,si
	959	call MBR_TeletypeNL
[30]	960
	961
[37]	962	call MBR_TeletypeSyncPos
[30]	963
[37]	964	xor si,si
	965	call MBR_TeletypeNL
	966	call MBR_TeletypeNL
[30]	967
	968
	969
[37]	970	mov si, offset ShowMenu
	971	call MBR_TeletypeBold
[30]	972
	973
	974
	975
	976
[49]	977
[37]	978	;
	979	; ####################### WAIT FOR KEY ########################
	980	;
[30]	981
	982
[37]	983	; Rousseau:
	984	; Wait for key so we can see debug log if ab-menu hangs.
[49]	985	;~ xor ax, ax
	986	;~ int 16h
[30]	987
[37]	988	;call SOUND_Beep
[30]	989
[37]	990	; Rousseau: delayed save of video-page
[30]	991
[37]	992	mov ax, VideoIO_Page1
	993	call VideoIO_BackUpTo ; Copy BIOS POST to Second Page
[30]	994
[37]	995	;call SOUND_Beep
[30]	996
	997
[37]	998	;
	999	; COM-PORT DEBUG
	1000	;
	1001	;call AuxIO_TeletypeNL
[46]	1002	;mov si, offset PartitionTable
[37]	1003	;call AuxIO_DumpSector
	1004	;call AuxIO_TeletypeNL
[30]	1005
[31]	1006
[37]	1007	; Save configuration so phase1 boot-through is disabled
	1008	; on next boot.
[46]	1009	mov byte ptr [eCS_InstallVolume], 0 ; disable phase 1 for next boot
[37]	1010	call DriveIO_SaveConfiguration
[31]	1011
	1012
	1013
[37]	1014	;
	1015	; RE-ENTER SETUP
	1016	;
	1017	MBR_Main_ReEnterSetup:
	1018	call SETUP_CheckEnterSETUP
[7]	1019
[37]	1020	;call SOUND_Beep
[30]	1021
[37]	1022	; Rousseau: Every time I see "AfterCrap" I have to laugh :-)
	1023	call AFTERCRAP_Main
[30]	1024
[37]	1025	; [Linux support removed since v1.02]
	1026	; Now get FAT16-Linux Kernel Partition, If requested
	1027	;cmp [CFG_LinuxKrnlPartition], 0FFh
	1028	;je MBR_Main_NoLinuxKrnlPartition
	1029	;call LINUX_InitFAT16access
	1030	;MBR_Main_NoLinuxKrnlPartition:
[7]	1031
[30]	1032
[46]	1033
[37]	1034	MBR_Main_ReEnterBootMenuPre:
[30]	1035
[37]	1036	; SetUp PartitionPointers for BootMenu (filter non-bootable)
	1037	call PART_CalculateMenuPartPointers
[7]	1038
[37]	1039	; ...and count that one...
[46]	1040	cmp byte ptr [PartitionPointerCount], 0
[37]	1041	jne MBR_Main_SomethingBootAble
	1042	mov si, offset TXT_NoBootAble
	1043	call MBR_Teletype
	1044	jmp MBR_HaltSystem
[30]	1045
[37]	1046	MBR_Main_SomethingBootAble:
	1047	; FixUp Values, define Timed Setup booting, etc.
	1048	call PART_FixUpDefaultPartitionValues
[7]	1049
[30]	1050
	1051
[37]	1052	; -------------------------------------------------- BOOT-MENU
	1053	MBR_Main_ReEnterBootMenu:
	1054	call BOOTMENU_ResetMenuVars ; reset has to be done
[46]	1055	test byte ptr [CFG_AutomaticBoot], 1
[37]	1056	jz MBR_Main_NoAutomaticBooting
[49]	1057
	1058
[37]	1059	; ------------------------------------------ AUTOMATIC BOOTING
	1060	; Select automatic partition, disable automatic booting for
	1061	; next time and boot system...
[46]	1062	mov byte ptr [CFG_AutomaticBoot], 0
[37]	1063	call PASSWORD_AskSystemPwd
	1064	mov al, Menu_EntryAutomatic
[30]	1065
[37]	1066	;mov al, 2
[30]	1067
[37]	1068	mov Menu_EntrySelected, al ; zero based
	1069	jmp MBR_Main_NoBootMenu
[7]	1070
[30]	1071
[49]	1072	MBR_Main_NoAutomaticBooting:
	1073
[37]	1074	;call SOUND_Beep
[30]	1075
[46]	1076	test byte ptr [CFG_BootMenuActive], 0FFh
[37]	1077	jnz MBR_Main_GotBootMenu
	1078	; ----------------------------------------------- NO BOOT-MENU
	1079	; Select default partition and boot system...
	1080	call PASSWORD_AskSystemPwd
[30]	1081
[37]	1082	;call VideoIO_DBG_WriteString2
[30]	1083
[37]	1084	mov al, Menu_EntryDefault
	1085	;mov al,0 ; zero based
	1086	mov Menu_EntrySelected, al
	1087	jmp MBR_Main_NoBootMenu
[7]	1088
[37]	1089	MBR_Main_GotBootMenu:
	1090	; ------------------------------------------ BOOT-MENU VISUALS
	1091	call FX_StartScreen
[30]	1092
[37]	1093	;call SOUND_Beep
[30]	1094
[37]	1095	call BOOTMENU_BuildBackground
	1096	call BOOTMENU_BuildMain
	1097	call FX_EndScreenRight
	1098	call PASSWORD_AskSystemPwd
	1099	call BOOTMENU_ResetTimedBoot
[30]	1100
[37]	1101	;call SOUND_Beep
[30]	1102
[37]	1103	call BOOTMENU_Execute
[30]	1104
[37]	1105	;call SOUND_Beep
[30]	1106
[37]	1107	jc MBR_Main_ReEnterSetup
	1108	call BOOTMENU_SetVarsAfterMenu
[30]	1109
[37]	1110	;call SOUND_Beep
[30]	1111
[37]	1112	; ---------------------------------------------------- BOOTING
	1113	MBR_Main_NoBootMenu:
	1114	call FX_StartScreen
	1115	call BOOTMENU_BuildGoodBye
	1116	call FX_EndScreenRight
	1117	call PASSWORD_AskChangeBootPwd
[7]	1118
[37]	1119	IFNDEF ReleaseCode
	1120	; Debug Code to terminate DOS .COM program - used for
	1121	; testing AiR-BOOT
	1122	int 3
	1123	mov ax, 6200h
	1124	int 21h
	1125	mov es, bx
	1126	mov ax, 4C00h ; Quit program
	1127	int 21h
	1128	ENDIF
	1129	call ANTIVIR_SaveBackUpMBR
[7]	1130
[49]	1131	; Preload the selected menu-entry
	1132	; However, this value will be wrong if eCS phase1 is
	1133	; active and the installation partition is newly created.
	1134	; See below for the adjustment.
	1135	mov dl, byte ptr [Menu_EntrySelected]
	1136
	1137	jmp MBR_Main_StartPartition
	1138
	1139
	1140
	1141	MBR_Main_StartPartition:
	1142
	1143	IFDEF AUX_DEBUG
	1144	;~ call DEBUG_DumpIPT
	1145	;~ call DEBUG_DumpPartitionPointers
	1146	call DEBUG_DumpPartitionXref
	1147	;~ call DEBUG_DumpNewPartTable
	1148	ENDIF
	1149
	1150
[37]	1151	; -------------------------------------------- START PARTITION
	1152	call PART_StartPartition
[30]	1153
	1154
[31]	1155
[30]	1156	;
	1157	; Include other code-modules here.
	1158	; Because TASM is a multiple pass assembler, forward references
	1159	; are possible.
	1160	;
	1161	b_std_txt:
[37]	1162	Include REGULAR/STD_TEXT.ASM ; Standard (non-translateable text)
[30]	1163	size_std_txt = $-b_std_txt
	1164
	1165	b_driveio:
[37]	1166	Include REGULAR/DRIVEIO.ASM ; Drive I/O, Config Load/Save
[30]	1167	size_driveio = $-b_driveio
	1168
[43]	1169	b_lvm:
	1170	Include SPECIAL/LVM.ASM ; LVM-specific code
	1171	size_lvm = $-b_lvm
	1172
[30]	1173	b_videoio:
[37]	1174	Include REGULAR/VIDEOIO.ASM ; Video I/O
[30]	1175	size_videoio = $-b_videoio
	1176
	1177	b_timer:
[37]	1178	Include REGULAR/TIMER.ASM ; Timer
[30]	1179	size_timer = $-b_timer
	1180
	1181	b_partmain:
[37]	1182	Include REGULAR/PARTMAIN.ASM ; Regular Partition Routines
[30]	1183	size_partmain = $-b_partmain
	1184
	1185	b_partscan:
[37]	1186	Include REGULAR/PARTSCAN.ASM ; Partition Scanning
[30]	1187	size_partscan = $-b_partscan
	1188
	1189	b_bootmenu:
[37]	1190	Include REGULAR/BOOTMENU.ASM ; Boot-Menu
[30]	1191	size_bootmenu = $-b_bootmenu
	1192
	1193	b_password:
[37]	1194	Include REGULAR/PASSWORD.ASM ; Password related
[30]	1195	size_password = $-b_password
	1196
	1197	b_other:
[37]	1198	Include REGULAR/OTHER.ASM ; Other Routines
[30]	1199	size_other = $-b_other
[7]	1200
[30]	1201	b_main:
[37]	1202	Include SETUP/MAIN.ASM ; The whole AiR-BOOT SETUP
[30]	1203	size_main = $-b_main
	1204
	1205
[43]	1206
[30]	1207	IFDEF TXT_IncludeCyrillic
	1208	b_ccharset:
[37]	1209	Include SPECIAL/CHARSET.ASM ; Charset Support (e.g. Cyrillic)
[30]	1210	size_ccharset = $-b_ccharset
	1211	ENDIF
	1212
[43]	1213
[30]	1214	b_math:
[37]	1215	Include REGULAR/MATH.ASM ; Math functions (like 32-bit multiply)
[30]	1216	size_math = $-b_math
	1217
	1218
[36]	1219
[43]	1220
	1221	; Various debugging routines, uses AUXIO and CONV
	1222	IFDEF AUX_DEBUG
[30]	1223	b_debug:
[46]	1224	Include REGULAR/DEBUG.ASM ; Debug module
[30]	1225	size_debug = $-b_debug
	1226	b_auxio:
[43]	1227	Include REGULAR/AUXIO.ASM ; Com-port support for debugging
[30]	1228	size_auxio = $-b_auxio
[43]	1229	ENDIF
[30]	1230
	1231
	1232
	1233
[31]	1234	;==============================================================================
[30]	1235
[37]	1236	;
[46]	1237	; Moved up.
	1238	;
	1239
	1240	;
[37]	1241	; This is the AiR-BOOT MBR-Protection Image.
	1242	; 04600 / 200h = 23h = 35d sectors are before this point.
[46]	1243	; The stuff generated here gets overwritten when the
	1244	; MBR_PROT.ASM module, which is assembled separately,
	1245	; gets merged.
[37]	1246	; So you won't find the string below in the generated binary.
	1247	;
	1248	; MOVED TO 6800h to create space and have a continuous
	1249	; code block.
	1250	; This makes the RU version buildable again with Tasm.
	1251	;
	1252	;org 04600h ; Sector 36-37
[30]	1253
	1254
[46]	1255	; Rousseau: It needed a sector alignment, so moved it up to
	1256	; have as much space as possible for the modules
	1257	; included here.
[30]	1258
[37]	1259
[31]	1260	;==============================================================================
	1261	; Sector 38-x
[37]	1262	;
	1263	; This section contains translatable texts.
	1264	;
	1265	;org 04A00h
[30]	1266
	1267
	1268	b_txtother:
[37]	1269	Include TEXT/TXTOTHER.ASM ; All translateable Text-Strings
[30]	1270	size_txtother = $-b_txtother
	1271
	1272	b_txtmenus:
[37]	1273	Include TEXT/TXTMENUS.ASM ; All translateable Menu-text
[30]	1274	size_txtmenus = $-b_txtmenus
	1275
	1276	b_charset:
[37]	1277	Include TEXT/CHARSET.ASM ; Special Video Charsets (if needed)
[30]	1278	size_charset = $-b_charset
	1279
[36]	1280	b_conv:
[37]	1281	Include REGULAR/CONV.ASM ; Various conversion routines
[36]	1282	size_conv = $-b_conv
[30]	1283
	1284	b_virus:
[37]	1285	Include SPECIAL/VIRUS.ASM ; Virus Detection / Anti-Virus
[30]	1286	size_virus = $-b_virus
[29]	1287	; [Linux support removed since v1.02]
[37]	1288	;Include SPECIAL/FAT16.ASM ; FAT-16 Support
	1289	;Include SPECIAL/LINUX.ASM ; Linux Kernel Support
[30]	1290	b_billsuxx:
[37]	1291	Include SPECIAL/F00K/BILLSUXX.ASM ; Extended Partition - Microsoft-Hack
[30]	1292	size_billsuxx = $-b_billsuxx
	1293
[45]	1294
[46]	1295
[45]	1296	;
	1297	; Critical end of code marker.
[47]	1298	; Should always be in the image, otherwise something
	1299	; is very wrong.
[45]	1300	;
[47]	1301	db 'DEAD'
	1302	db 'FACE'
[45]	1303
	1304	;
	1305	; Keep these modules here at the end of the code section.
	1306	; When debugging, extra code space is used and code will move up towards
	1307	; the protection image that is 'orged' and will thus overlay.
	1308	; The effects are turned off in debug mode, so it does not matter much that
	1309	; this code get's lost.
	1310	;
[30]	1311	b_sound:
[37]	1312	Include SPECIAL/SOUND.ASM ; Sound
[30]	1313	size_sound = $-b_sound
	1314
	1315	b_apm:
[37]	1316	Include SPECIAL/APM.ASM ; Power Managment Support
[30]	1317	size_apm = $-b_apm
	1318
	1319	b_fx:
[37]	1320	Include SPECIAL/FX.ASM ; l33t Cooper-Bars/Scrolling <bg>
[30]	1321	size_fx = $-b_fx
	1322
	1323
[46]	1324	; If we are debugging, we overwrite the FX code.
[47]	1325	; As long as FX is disabled this will do no harm.
[46]	1326	IFDEF AUX_DEBUG
	1327	ORG 06780h
	1328	ENDIF
[30]	1329
[47]	1330
[46]	1331	bld_level:
[43]	1332	;
[46]	1333	; Here we insert the OS/2 BLDLEVEL Information.
	1334	; It is composed of the AiR-BOOT version-info and other
	1335	; information.
	1336	; It is unique for each release of AiR-BOOT.
	1337	;
[47]	1338	; ?? When AUX_DEBUG is enabled and the above org is active,
	1339	; the BLDLEVEL gets corrupted eventhough it gets inserted here
	1340	; explicitly. The effect is almost like an 'OR' or a merge
	1341	; with the already generated FX code.
	1342	; Tasm and JWasm produce different results.
	1343	; ??
	1344	;
[46]	1345	InsertBuildLevel
	1346
[47]	1347	;bliep <>
	1348
[46]	1349	;
[43]	1350	; End of code marker.
[47]	1351	; If this one vanishes in the image, the FX code will not
	1352	; be operational.
	1353	; Will happen with debugging enabled.
[43]	1354	;
	1355	db 'BABE'
	1356	db 'FACE'
[30]	1357
[43]	1358	code_end:
[7]	1359
	1360
[45]	1361	;
	1362	; AiR-BOOT Protection Image.
[46]	1363	; Moved from below to have it not break the included modules
	1364	; with it's sector alignment requirement.
[45]	1365	;
	1366	ORIGIN 06800h
[7]	1367
[47]	1368	zzz_code_space = $ - code_end
[37]	1369	;
	1370	; This is the AiR-BOOT MBR-Protection Image.
[43]	1371	; 06800 / 200h = 34h = 52d sectors are before this point.
[46]	1372	; The stuff generated here gets overwritten when the
	1373	; MBR_PROT.ASM module, which is assembled separately,
	1374	; gets merged.
[37]	1375	; So you won't find the string below in the generated binary.
	1376	;
[46]	1377
	1378	; 06800-068FF
	1379	; 06900-069FF
	1380	; 06A00-06AFF
	1381	; 06B00-06BFF
	1382
	1383	;
[43]	1384	; Hardcoded to 1k (1024 bytes) (MBR_PROT.ASM)
[46]	1385	; The string below is searched for by the FIXCODE helper and must be
	1386	; sector (512-bytes) aligned.
	1387	;
[37]	1388	MBR_Protection db 'AiR-BOOT MBR-Protection Image'
	1389
[43]	1390	; Just fill.
	1391	db 1024-($-MBR_Protection) dup('M')
[37]	1392
	1393
[31]	1394	;==============================================================================
	1395	; Sector 55
[30]	1396
[37]	1397	;
	1398	; This section contains the AiR-BOOT configuration.
	1399	; Note that it has a version that should be updated
	1400	; when stuff is added.
	1401	; Also add stuff to the end so that offsets of other
	1402	; variables remain vaild.
	1403	;
[45]	1404	ORIGIN 06C00h
[30]	1405
[37]	1406	Configuration:
[46]	1407	; THERE IS A NON-ASCII CHAR HERE !!
	1408	; Your editor may not display this non-ASCII
[37]	1409	; character at the end if the 'AiRCFG-TABLE'
	1410	; string. When this character get's deleted,
	1411	; AiR-BOOT will not function because it cannot
	1412	; find the config-signature which includes this
[46]	1413	; invisible character. The code of the char is: 0x0ad.
[37]	1414	db 'AiRCFG-TABLE'
[46]	1415	db 01h, 08h, 'U' ; "Compressed" ID String
[37]	1416	; Version 1.02 was for code 1.06, 1.03 was internal
	1417	; and 1.04,1.05 and 1.06 do not exist.
[46]	1418	;
	1419	; 1.07 was used with AB v1.07 and introduced the phase1
	1420	; system-name. For the rest it is compatible with v1.02.
	1421	;
	1422	; 1.0.8 is introduced with AB v1.0.8 and indicates the movement
	1423	; of several components and the packing of the hideparttable.
	1424	; The core configuration has not changed but the generated
	1425	; configuration has. The v1.0.8 installer handles upgrading.
	1426	;
[37]	1427	; It is not required for the config to have the
	1428	; same version as the code, so in the future
	1429	; the code version might be higher than the
	1430	; config version if there are no changes to the latter.
[46]	1431	;
[7]	1432
[37]	1433	CFG_LastTimeEditLow dw 0 ; Last Time Edited Stamp (will incr every setup)
	1434	CFG_LastTimeEditHi dw 0 ; second 16 bit part...
[7]	1435
[37]	1436	CFG_CheckConfig dw 0 ; Check-Sum for Configuration
[7]	1437
[37]	1438	CFG_Partitions db 0 ; Count of partitions in IPT
	1439	db 0 ; Was BootParts - Removed since v0.28b
	1440	CFG_PartDefault db 0 ; Default-Partition (Base=0)
[7]	1441
[37]	1442	CFG_PartLast db 0 ; Which Partition was booted last time ? (Base=0)
	1443	CFG_TimedBoot db 0 ; Timed Boot Enable (for REAL Enable look TimedBootEnable)
	1444	CFG_TimedSecs db 15 ; Timed Boot - How Many Seconds Till Boot
	1445	CFG_TimedDelay dw 123 ; Timed Boot - Delay
	1446	CFG_TimedBootLast db 1 ; Timed Boot - Boot From Last Drive Booted From
	1447	CFG_RememberBoot db 1 ; Remember Manual Boot Choice
	1448	CFG_RememberTimed db 0 ; Remember if Timed Boot (if both disabled: Boot Default)
	1449	CFG_IncludeFloppy db 1 ; Include Floppy Drives in Boot-Menu
	1450	CFG_BootMenuActive db 1 ; Display Boot-Menu (if Disabled: Boot Default)
[7]	1451	; v0.29+ -> 2 - Detailed Bootmenu
[37]	1452	CFG_PartitionsDetect db 1 ; Autodetect New Partitions (Auto-Add!)
	1453	CFG_PasswordSetup db 0 ; Ask Password when entering Setup
	1454	CFG_PasswordSystem db 0 ; Ask Password when booting System
	1455	CFG_PasswordChangeBoot db 0 ; Ask Password when changing boot partition
	1456	CFG_ProtectMBR db 0 ; Protect MBR via TSR ?
	1457	CFG_IgnoreWriteToMBR db 0 ; Just ignore writes to MBR, otherwise crash
	1458	CFG_FloppyBootGetName db 0 ; Gets floppy name for display purposes
	1459	CFG_DetectVirus db 0 ; Detect Virus ?
	1460	CFG_DetectStealth db 0 ; Detect Stealth-Virus ?
	1461	CFG_DetectVIBR db 0 ; Detect BootRecord-Virus ?
	1462	CFG_AutoEnterSetup db 0 ; Automatic Enter Setup (first install!)
	1463	CFG_MasterPassword dw 0101Fh ; Encoded Password (this is just CR)
	1464	dw 07A53h
	1465	dw 0E797h
	1466	dw 0A896h
	1467	CFG_BootPassword dw 0101Fh ; Another CR... ;-)
	1468	dw 07A53h
	1469	dw 0E797h
	1470	dw 0A896h
	1471	db 0 ; Rude-Protection - Removed since v0.28b
	1472	CFG_LinuxRootPartition db 0 ; Linux Root Partition (Base=0)
	1473	CFG_TimedKeyHandling db 0 ; Timed Key Handling (for Timed Boot)
	1474	; 0 - Do Nothing
	1475	; 1 - Reset Time
	1476	; 2 - Stop Time
	1477	CFG_MakeSound db 0 ; Should be clear ;)
	1478	CFG_FloppyBootGetTimer db 0 ; Floppy Name will get updated every 2 secs
	1479	CFG_ResumeBIOSbootSeq db 0 ; If BIOS Boot Sequence should be resumed
	1480	; 0 - Disabled
	1481	; 1 - CD-ROM
	1482	; 2 - Network
	1483	; 3 - ZIP/LS120
	1484	CFG_CooperBars db 0 ; If Cooper Bars should be shown
	1485	CFG_LinuxCommandLine db 75 dup (0) ; Linux Command Line
	1486	CFG_LinuxKrnlPartition db 0FFh ; FAT-16 Linux Kernel Partition (Base=0)
	1487	; FFh -> Disabled
	1488	CFG_LinuxDefaultKernel db 'DEFAULT', 4 dup (32), 0 ; Default Kernel Name
	1489	CFG_LinuxLastKernel db 11 dup (32), 0 ; Last-Booted Kernel Name
	1490	CFG_ExtPartitionMShack db 0 ; Extended Partition M$-Hack Global Enable
	1491	CFG_AutomaticBoot db 0 ; Automatic Booting (only one bootup)
	1492	CFG_PartAutomatic db 0 ; Partition-No for automatic booting
	1493	CFG_ForceLBAUsage db 1 ; LBA-BIOS-API forced on any HDD I/O
	1494	CFG_IgnoreLVM db 0 ; Ignores any LVM-Information
[7]	1495
[30]	1496
	1497	;
	1498	; THERE IS ROOM RESERVED HERE FOR MORE VARIABLES
	1499	;
	1500
[45]	1501	;
	1502	; Drive Letters.
	1503	;
	1504	ORIGIN 06CB0h
[30]	1505
	1506
[45]	1507	;
	1508	; Moved here to make room for packed hiddenparttable.
	1509	;
	1510	DriveLetters db LocIPT_MaxPartitions dup (0)
	1511	; Format is:
	1512	;============
	1513	; Drive-Letter : BYTE (80h-C:, 81h-D:)
	1514	; --------------------> 1 Byte * 45
[30]	1515
[45]	1516	;
[37]	1517	; Allways have the name of the installation volume
	1518	; at this offset.
	1519	; So future config changes will not break auto-install.
[45]	1520	;
	1521	ORIGIN 06D00h
[37]	1522
[31]	1523	; SET(A)BOOT stores the volume name of the eCS system being installed here.
	1524	; It is truncated to 11 chars because AiR-BOOT currently does not support
	1525	; longer labelnames. The name is also capitalized.
[37]	1526	;eCS_InstallVolume db 12 dup (0)
	1527	;eCS_InstallVolume db 'HIGHLOG' ,0
	1528	;eCS_InstallVolume db 'ECS-MIDDLE',0,0
	1529	;eCS_InstallVolume db 'ECS-HIGH',0,0,0,0
	1530	;eCS_InstallVolume db 'ECS-HIGH',0,'NO',0
[49]	1531	eCS_InstallVolume db 'KANWEG2',0
	1532	;eCS_InstallVolume db 0,'NOPHASEONE' ,0
[30]	1533
[37]	1534	;
	1535	; THERE IS ROOM RESERVED HERE FOR MORE VARIABLES
	1536	;
	1537
	1538	;
	1539	; 06DABh - 06C00h = 01ABh = 427 bytes.
	1540	; Entries allocated down from 06E00 boundary.
	1541	;
[46]	1542	ORIGIN 06DABh ; 427 Boundry
[37]	1543
	1544	; (432 - 5 = 427)
	1545	AutoDrvLetter db 0
	1546	AutoDrvLetterSerial dd 0
	1547
	1548	; This entry is also 34 bytes long (466 - 34 = 432)
	1549	BIOScontIPTentry:
	1550	db 0, 0, 0, 0, ' '
	1551	db 0, 0FEh, Flags_Bootable
	1552	dw 0 ; No Checksum :)
	1553	db 0, 1, 0
	1554	db 0, 1, 0 ; Location of Partition/Boot Record
	1555	dd 0, 0
	1556
[7]	1557	; VIR variables are for the AiR-BOOT Anti Virus Code
	1558	; Most of them are backups of Interrupt Points, so we can check, if a
	1559	; stealth virus is on-line, we can intercept its call.
	1560	; Normal (non stealth) virus are trapped simply by rereading the MBR sector.
[46]	1561	; If a virus is found, we will restore MBR from Sektor 60/62 and stop the
	1562	; system from working, so the user has to press reset.
	1563	; That's saver than a Reboot.
[7]	1564	;
	1565	; If a virus is found on the partition to boot, the system will ONLY halt,
	1566	; nothing more, because we can not remove it. The user shall do it :)
	1567	; Those viruses are detected via a real nasty method...Checksum-Checking of the
	1568	; boot-record, which is to be executed. If it does not match the one in our
	1569	; internal partition table, we will stop. You may however switch this detection
	1570	; off or just reset it by switching 'VIBR Detection'.
	1571
[37]	1572	; 478 - 12 = 466 ; 466 Sub-Part
	1573	CFG_VIR_INT08 dd 0 ; pointer to saved 08h entry point
	1574	CFG_VIR_INT13 dd 0 ; pointer to saved 13h entry point
	1575	CFG_VIR_INT1C dd 0 ; pointer to saved 1Ch entry point
[30]	1576
[37]	1577	; 478 Boundry (512-34)
	1578	; This entry is also 34 bytes long
	1579	FloppyIPTentry db 0, 0, 0, 0, 'FloppyDrive'
	1580	db 0, 0FFh, Flags_Bootable
	1581	dw 0 ; No Checksum :)
	1582	db 0, 1, 0
	1583	db 0, 1, 0 ; Location of Partition/Boot Record
	1584	dd 0, 0
	1585	;------------------------------------------------------------------------------
[30]	1586
[37]	1587	;org 06E00h ; Sector 56-57
[30]	1588
[45]	1589	;
	1590	; AiR-BOOT Internal Partition Table (IPT)
	1591	;
	1592	ORIGIN % (image_size - 0a00h - (image_size - image_size_60secs))
[30]	1593
	1594
[45]	1595	;
	1596	; Rousseau: This is the start of the AiR-BOOT IPT
	1597	;
[30]	1598
	1599
[45]	1600	PartitionTable db (LocIPT_MaxPartitions * LocIPT_LenOfIPT) dup (0)
	1601	; no-partitions detected... :]
[7]	1602	; db 1, 0, 0, 0, 'Harddisc 1'
	1603	; db 0, 0FFh, Flags_BootAble
	1604	; dw 0 ; No Checksum :)
	1605	; db 0, 0, 1
[46]	1606	; db 0, 0, 1 ; Location of Partition/Boot Record
[7]	1607	; dd 0, 0
	1608
[37]	1609	; Format is:
	1610	;============
	1611	; SerialNumber * 4
	1612	; PartitionName * 11
	1613	; Drive * 1
	1614	; SystemID * 1 (means the partition type)
	1615	; Flags * 1
	1616	; Checksum * 2 (for virus checking)
	1617	; LocationBegin * 3 (where the partition begins)
	1618	; LocationPartTab * 3 (where the partition table is)
	1619	; AbsoluteBegin * 4 (where the partition begins, in absolute sectors)
	1620	; AbsolutePartTab * 4 (where the partition table is, in absolute sectors)
	1621	; --------------------> 34 Bytes (total maximum partition-entries = 30)
[7]	1622
[30]	1623
[37]	1624
	1625	; No need to check overlap here because this string will
	1626	; be overwritten if the maximum partition count is reached.
	1627	; So this is not a critical boundary.
[45]	1628	ORG (image_size - 600h - (image_size - image_size_60secs) / 2 - 10)
[37]	1629
	1630	db 'AiRBOOTPAR' ; 1K internal partition table
[30]	1631
	1632
[45]	1633	;------------------------------------------------------------------------------
	1634	;org 07400h ; Sector 58
[30]	1635
	1636
[45]	1637	;
	1638	; Hidden Partition Table (6-bit packed as of v1.0.8)
	1639	;
	1640	ORIGIN % (image_size - 600h - (image_size - image_size_60secs) / 2)
[30]	1641
[38]	1642	HidePartitionTable db (LocIPT_MaxPartitions * LocHPT_LenOfHPT) dup (0FFh)
[37]	1643	; Format is:
	1644	;============
	1645	; PartitionPtr : BYTE * 30
[38]	1646	; --------------------> 30 Bytes * 45
[30]	1647
[37]	1648	;
[45]	1649	; Driveletters were here.
	1650	; Moved down to make room for packed hideparttable.
	1651	;
[30]	1652
[37]	1653
[45]	1654	;
	1655	; End of hidden partition table.
	1656	; Check overlap here for security reasons.
	1657	;
	1658	ORIGIN % (image_size - 200h - 5)
[30]	1659
[45]	1660	; 79fa - end of packed hide table
	1661	db 'ABHID' ; 1K internal Hide-partition table
[30]	1662
	1663
	1664
	1665
[31]	1666	;------------------------------------------------------------------------------
[45]	1667	;org 07A00h
	1668	; Sector 60
[37]	1669
[45]	1670	;
	1671	; AiR-BOOT MBR Backup.
	1672	;
	1673	ORIGIN % (image_size - 200h)
[37]	1674
[31]	1675
[46]	1676	MBR_BackUpMBR db 'AiR-BOOT MBR-BackUp',\
	1677	' - Just to fill this sector with something',0
[37]	1678	AirBootRocks db 'AiR-BOOT Rocks!',0
[7]	1679
[45]	1680	db (512 - ($-MBR_BackUpMBR) - 2) dup('M')
[36]	1681
[45]	1682	; End of Image signature.
	1683	;
	1684	ORIGIN % (image_size - 2)
	1685	dw 0BABEh
[30]	1686
	1687
[45]	1688	;
	1689	; End of Image.
	1690	;
	1691	ORIGIN % (image_size)
[30]	1692
	1693
[37]	1694	IFDEF SEGMENTED
[30]	1695	;
	1696	; End of AiR-BOOT code and data.
	1697	;
	1698
[43]	1699	LDRIMAGE ENDS
[30]	1700
[43]	1701	;DATA_SEG ENDS
[37]	1702
[30]	1703	;
[37]	1704	; Uninitialized Data (BSS)
[30]	1705	;
[37]	1706	VOLATILE SEGMENT USE16 PUBLIC 'BSS'
	1707
	1708	ENDIF
	1709
[46]	1710
	1711
[30]	1712	sobss:
[31]	1713	;------------------------------------------------------------------------------
[46]	1714
[37]	1715	;
[46]	1716	; Removed ORG for BSS data to be more compatible
[38]	1717	; with segment-concatenated layout.
[37]	1718	;
[42]	1719	; What happens before this space ??
	1720	; If org 0 corruption occurs.
[46]	1721	;
	1722
	1723	;
[45]	1724	; Filling hiddenparttable goes out-of-bounds !
[46]	1725	; Fixed with 6-bit packing.
[42]	1726	;
[37]	1727
[46]	1728	;
	1729	; If segmented, offsets are relative to the BSS segment.
	1730	; They are resolved at link-time.
	1731	; If not segmented, offsets are relative to the CODE segment.
	1732	;
	1733	IFDEF SEGMENTED
	1734	ORG 02400h
	1735	ELSE
	1736	ORG 0A000h
	1737	ENDIF
	1738
	1739
[7]	1740	; This space actually gets initialized in PreCrap to NUL (till EndOfVariables)
	1741	BeginOfVariables:
[46]	1742	PartitionSector db 512 dup (?) ; Temporary Sector for Partition
	1743	JfsPBR db 512 dup (?) ; Temporary Sector for JFS PBR writeback
	1744	LVMSector db 512 dup (?) ; Temporary Sector for LVM
	1745	TmpSector db 512 dup (?) ; Temporary Sector
	1746	Scratch db 256 dup (?) ; Scratch buffer
[30]	1747
[7]	1748	; Everything used to build a new IPT and reference it to the old one
[43]	1749	; IETS OVERSCHRIJFT DIT !!
[46]	1750	NewPartTable db 1536 dup (?) ; New Partition Table
[43]	1751
[46]	1752	; New Hide-Partition Table
	1753	NewHidePartTable db partition_count * LocHPT_LenOfHPT dup (?)
[7]	1754
[46]	1755	; Logical Drive-Letters
	1756	NewDriveLetters db partition_count dup (?)
[7]	1757
[46]	1758	; Size-Table (6 bytes per partition)
	1759	PartitionSizeTable db partition_count * 6 dup (?)
	1760
[49]	1761	; Maximum is 52 word entries till now
[46]	1762	PartitionPointers dw 52 dup (?)
	1763
	1764	; Count of total Partition Pointers
	1765	PartitionPointerCount db ?
	1766
	1767	; X-Reference Table (holds new partnr, index is old part nr)
	1768	PartitionXref db partition_count dup (?)
	1769
	1770	; Volume-Letters
	1771	; 0 - no LVM support
	1772	; 1 - LVM support, but no letter
	1773	; 'C'-'Z' - assigned drive letter
	1774	PartitionVolumeLetters db partition_count dup (?)
	1775
	1776
	1777
	1778
	1779	TotalHarddiscs db ? ; Total harddrives (by POST)
	1780	LBASwitchTable db 128 dup (?) ; Bit 25-18 for CHS/LBA Switching
	1781	NewPartitions db ? ; Freshly found partitions
[37]	1782	; Independent of SaveConfiguration
[46]	1783	TooManyPartitions db ? ; Non-zero if too many partitions found
[7]	1784
[46]	1785	VideoIO_Segment dw ? ; Segment for Video I/O
[7]	1786
[46]	1787	ExtendedAbsPos dd ? ; Extended Partition Absolute Position
	1788	ExtendedAbsPosSet db ? ; If Absolute Position set
[7]	1789
[46]	1790	CurPartition_Location dw 4 dup (?) ; Where did current partition come from?
	1791	CurIO_UseExtension db ? ; 1-Use INT 13h EXTENSIONS
	1792	; (filled out by PreCrap)
	1793	CurIO_Scanning db ? ; 1-AiR-BOOT is scanning partitions
[37]	1794	; (for detailed error message)
[7]	1795
[29]	1796	; [Linux support removed since v1.02]
	1797	;GotLinux db ? ; 1-Linux found
[7]	1798
[46]	1799	Menu_EntrySelected db ? ; Which partition we boot this time...
	1800	Menu_UpperPart db ? ; Which number (Base=0) is the partition upper pos
	1801	Menu_AbsoluteX db ? ; Pos where Menu stuff starts
	1802	Menu_TotalParts db ? ; Copy of CFG_BootParts
	1803	Menu_TotalLines db ? ; Total Lines on Screen used for BootMenu
	1804	Menu_EntryDefault db ? ; Default Entry in filtered View
	1805	Menu_EntryLast db ? ; LastBooted Entry in filtered View
	1806	Menu_EntryAutomatic db ? ; Automatic Entry in filtered View
[7]	1807	; - All adjusted to menu locations
	1808
[46]	1809	PartSetup_UpperPart db ? ; Partition-Setup (like Menu_UpperPart)
	1810	PartSetup_ActivePart db ? ; Active Partition
	1811	PartSetup_HiddenUpper db ? ; (like Menu_UpperPart)
	1812	PartSetup_HiddenX db ? ; Pos for Hidden-Setup
	1813	PartSetup_HiddenAdd db ? ; Adjust for Hidden-Setup
[7]	1814
[46]	1815	TimedBootEnable db ? ; Local Enable/Disable for timed boot
	1816	TimedTimeOut dd ? ; TimeOut Timer for TimedBoot (too much time here;)
	1817	TimedSecondLeft db ? ; How many seconds are left till boom ?
	1818	TimedSecondBack db ? ; To get a modification noticed
	1819	TimedBootUsed db ? ; Timed Boot used for bootup ?
	1820	FloppyGetNameTimer dd ? ; Timer for Floppy-Get-Name
	1821	SETUP_KeysOnEntry db ? ; which Shift Status was there, when booting ?
	1822	SETUP_ExitEvent db ? ; Exit Event to end SETUP
	1823	TempPasswordEntry db 17 dup (?)
	1824	SETUP_OldPwd db 17 dup (?)
	1825	SETUP_NewPwd db 17 dup (?)
	1826	SETUP_VerifyPwd db 17 dup (?)
	1827	StartSoundPlayed db ?
	1828	ChangePartNameSave db ? ; Save label after user-edit ?
	1829	SyncLvmLabels db ? ; Sync LVM labels after user-edit ?
[7]	1830
[37]	1831	FX_UseCount dw ?
	1832	FX_OverallTimer dw ?
	1833	FX_WideScrollerTimer dw ?
	1834	FX_WideScrollerCurPos dw ?
	1835	FX_WideScrollerSpeed db ?
	1836	FX_WideScrollerSpeedState db ?
	1837	FX_WideScrollerDirection db ?
	1838	FX_WideScrollerAbsDirection db ?
	1839	FX_WideScrollerBounceSpeed db ?
	1840	FX_CooperBarsTimer dw ?
[7]	1841
[46]	1842	;~ ; [Linux support removed since v1.02]
	1843	;~ FAT16_Drive db ? ; FAT-16: Drive of FAT16-partition
	1844	;~ FAT16_AbsPartitionBegin dd ? ; FAT-16: LBA Begin of Partition
	1845	;~ FAT16_SecsPerCluster db ? ; FAT-16: Sectors Per Cluster
	1846	;~ FAT16_NumOfRootEntries dw ? ; FAT-16: Number of Root Entries
	1847	;~ FAT16_SecsPerFAT dw ? ; FAT-16: Sectors Per FAT
	1848	;~ FAT16_AbsFATBegin dd ? ; FAT-16: LBA Begin of FAT
	1849	;~ FAT16_AbsRootBegin dd ? ; FAT-16: LBA Begin of Root
	1850	;~ FAT16_AbsClusterBegin dd ? ; FAT-16: LBA Begin of Clusters
	1851	;~ FAT16_FATCacheSector db ? ; FAT-16: FAT-Sector No in Cache
	1852	;~ FAT16_FATCache db 512 dup (?) ; FAT-16: FAT-Area Cache
	1853	;~ LINUX_KernelEntries db 680 dup (?) ; 34*20 -> Space for Kernel-Entries
	1854	;~ LINUX_KernelNo db ? ; Total of Kernels in KernelEntries
	1855	;~ LINUX_KernelSizeTable db 120 dup (?) ; Size-Table (6 bytes per kernel)
[7]	1856
[29]	1857	; Dynamically Generated Tables - do not need to get initialized with NUL
[46]	1858	FX_CooperColors db 672 dup (?) ; 7 cooper bars*96 - runtime calculated
	1859	FX_CooperState db 7 dup (?)
	1860	FX_SinusPos db 7 dup (?)
	1861	FX_CooperPos dw 7 dup (?)
	1862	CharsetTempBuffer db 4096 dup (?) ; Uninitialized Charset buffer
	1863	LVM_CRCTable dd 256 dup (?) ; LVM-CRC (->SPECiAL\LVM.asm)
[7]	1864
[30]	1865
	1866
[46]	1867
[30]	1868	;
	1869	; Rousseau: added some stuff.
	1870	;
	1871
[49]	1872	Phase1Active db ?
	1873	OldPartitionCount db ?
[30]	1874
	1875	;EVEN
[37]	1876	HugeDisk db MaxDisks dup(?)
	1877	TrueSecs dd MaxDisks dup(?)
[30]	1878
	1879	; BIOS geometry of the boot-drive
	1880	; Note that heads cannot be 256 due to legacy DOS/BIOS bug
	1881	; If Int13X is supported those values are used, otherwise the legacy values.
[37]	1882	BIOS_Cyls dd MaxDisks dup(?)
	1883	BIOS_Heads dd MaxDisks dup(?)
	1884	BIOS_Secs dd MaxDisks dup(?)
	1885	BIOS_Bytes dw MaxDisks dup(?)
	1886	BIOS_TotalSecs dq MaxDisks dup(?)
[30]	1887
	1888	; LBA geometry of the boot-drive
	1889	; Note that these values are taken from the BPB of a partition boot-record
[37]	1890	LVM_Cyls dd MaxDisks dup(?)
	1891	LVM_Heads dd MaxDisks dup(?)
	1892	LVM_Secs dd MaxDisks dup(?)
	1893	LVM_Bytes dw MaxDisks dup(?)
	1894	LVM_TotalSecs dq MaxDisks dup(?)
[30]	1895
	1896	; OS/2 geometry of the boot-drive
	1897	; Note that these values are taken from the BPB of a partition boot-record
[37]	1898	LOG_Cyls dd MaxDisks dup(?)
	1899	LOG_Heads dd MaxDisks dup(?)
	1900	LOG_Secs dd MaxDisks dup(?)
	1901	LOG_Bytes dw MaxDisks dup(?)
	1902	LOG_TotalSecs dq MaxDisks dup(?)
[30]	1903
[46]	1904	; End of transient variables.
[30]	1905	EndOfVariables:
	1906
	1907
[46]	1908	;
	1909	; Temporary buffer for 48h INT13X bios call.
	1910	;
[30]	1911
[46]	1912	; Size of the buffer.
	1913	; this param must be filled in.
	1914	; Code inserts it.
	1915	i13xbuf dw 1 dup (?)
[30]	1916
[46]	1917	; The buffer itself.
	1918	db 126 dup(?)
	1919
	1920	; Size of buffer calculated.
	1921	; (excluding the size word at the start).
	1922	i13xbuf_size = $-offset i13xbuf-2
	1923
	1924	; Some debug area.
[44]	1925	ott db 512 dup(?)
	1926
[30]	1927	eobss:
	1928
[37]	1929	IFDEF SEGMENTED
[46]	1930	VOLATILE ENDS
[37]	1931	ELSE
[46]	1932	LDRIMAGE ENDS
[37]	1933	ENDIF
[43]	1934
[45]	1935	END AiR_BOOT
[30]	1936

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