ProfitPress Mega CDROM2 …eeware (MSDOS)(1992)(Eng)/ProfitPress-MegaCDROM2.B6I/TEXT/INFO/PCIERRAT.ZIP/PCI_ERR1.TXT

Text File | 1992-01-22 | 28.6 KB | 772 lines

                   [1/22/92]
                Errata and Notes
                  for

                 PC Interrupts:
      A Programmer's Reference to BIOS, DOS, and Third-Party Calls
                   by
            Ralf Brown and Jim Kyle

 ----------------------------------------------------------------------

Page xii
The list of contributors was omitted during the publishing process.  It
is reproduced here in its entirety.

  Many people have contributed information to the Interrupt List over the
  years, resulting in a much larger listing than would otherwise have been
  the case.  We gratefully acknowledge the contributions of the following:

  Dave Andrews <bilver![e-mail]>, Mike Baszczak, Stephen Bean
  <[e-mail]>, David H. Bennett
  <[e-mail]>, Jan-Pascal van Best
  <[e-mail]>, James Birdsall <[e-mail]>, Roger
  Bowler <[e-mail]>, Chris Blum
  <[e-mail]>, John Brennen <[e-mail]>,
  Vincent Broman <[e-mail]>, Barry Burke <[e-mail]>,
  Jan Ceuleers <2:295/27>, Robert Chafer (Salford, England), Geoff
  Chappell <uunet!cix.compulink.co.uk!geoffc>, John Cooper, Wes Cowley
  <[e-mail]>, Dan Crocker
  <[e-mail]>, Maxime Dallaire <1:167/163>, Brad
  Davis <[e-mail]>, Mark Davis <[e-mail]>, Dan Davison
  <[e-mail]>, John DesRosiers, Michael Dickson <[e-mail]>,
  Clarence A Dold <[e-mail]>, David Dyck
  <[e-mail]>, Leonard Erickson <[e-mail]>, John
  Fa'atuai <[e-mail]>, Pete Fales <att!ttrde!pfales>, Dan Fandrich
  <[e-mail] or 1:153/511.1>, Bob Fehrenbach, Herwig
  Feichtinger (Petershausen, Germany), David Fink
  <[e-mail]>, Edwin Floyd <[e-mail]>,
  Sergio Fogel <[e-mail]>, Christian Franke
  <[e-mail]>, Bill Frolik
  <[e-mail]>, Ge van Geldorp <[e-mail]>, Skip
  Gilbrech, Kevin Gillett <1:153/160>, Frank Gladu, Rich Goldschmidt
  <rlgvax!golds>, Robert Goldsmith <[e-mail]>, Bob Green
  <[e-mail]>, Ross M. Greenberg <[e-mail]>, Darryl
  Gregorash <1:140/86>, Dennis Grinberg <[e-mail]>, Dave
  Guggisberg <[e-mail]>, Richard Hargrove
  <harvard!killer!richardh>, Klaus Hartnegg
  <[e-mail]>, Ralph Heredia
  <att!attmail!rheredia>, David Herron <[e-mail]>, Michael Ho
  <[e-mail]>, Peter Holzmann <[e-mail]>, Thomas Hundt
  <[e-mail]>, Ari Huttunen <[e-mail]>,
  Ying-Kuen K. Hwang <[e-mail]>, Bob Jack, Janet Jack, Skule
  Johansen <[e-mail]>, Howard Johnson
  <[e-mail]>, Tamura Jones <2:512/36.7>,
  Norbert Juffa (Karlsruhe, FRG), Madis Kaal <2:490/30>, Everett Kaser
  <[e-mail]>, Cornel Kaufmann <[e-mail]>,
  Paul van Keep <[e-mail]>, Stuart R. Kemp
  <[e-mail]>, James P. Kiely
  <[e-mail]>, Naota Kimura
  <[e-mail]>, Dave Kirsch <[e-mail]>,
  Glen Kriekenbeck <[e-mail]>, Shalom Krischer
  <actnyc![e-mail]>, Dan Lanciani <[e-mail]>,
  Risto Lankinen, Michael D. Lawler <[e-mail]>, Brian
  Leeming (Surrey, England), John Lefor <[e-mail]>, Marty
  Leisner <[e-mail]>, Erik Liljencrantz
  <[e-mail]>, Sean Lin (Midland, MI), Mark Livingstone
  <[e-mail]>, Marco Lumachi <[e-mail]>, Rob
  Luursema <[e-mail]>, Bent Lynggaard
  <[e-mail]>, Otto J. Makela <[e-mail]>, Richard Marks
  <[e-mail]>, Michel Mathieu <[e-mail]>, David Maxey
  <[e-mail]>, Claude Marche <[e-mail]>, Ken Medellin,
  Gary E. Miller <[e-mail]>, Michael A. Moran
  <[e-mail]>, Mike Morearty <...!ucbvax!cory!morearty>, Joe
  Morris <[e-mail]>, Richard D. Morris
  <[e-mail]>, Les Moskowitz <1:261/1008>, Duncan
  Murdoch <[e-mail]>, Ben Myers
  <[e-mail]>, Ed Nather <[e-mail]>, Russ
  Nelson <[e-mail]>, Andrea Omodeo (Cilavegna, Italy),
  Lewis Paper (Minnesota), William L. Peavy <[e-mail]>,
  A. Padgett Peterson <[e-mail]>, Greg
  Pasquariello <moss!picuxa!gp>, Simon Phipps
  <[e-mail]>, Jeroen Pluimers <2:281/521>, George W.
  Pogue <[e-mail]>, Victor Poon <[e-mail]>, Dan
  Prather <[e-mail]>, Nelluri Reddy
  <[e-mail]>, John Ruschmeyer <moncol![e-mail]>,
  Peter Sawatzki <[e-mail]>, Mark Scase <[e-mail]>,
  Carl Schelin <[e-mail]>, Bernd Schemmer (Dortmund,
  Germany), Marc Scholtis <2:281/701.2>, W.F. Schroeder
  <unido!nixpbe![e-mail]>, Andrew Schulman
  <[e-mail]>, Robert Seals <[e-mail]>, Mark
  Seiffert <[e-mail]>, Michael A. Shiels
  <[e-mail] or [e-mail]>, Michael D. Shride
  <[e-mail]>, Fridrik Skulason <[e-mail]>, George
  Smith <[e-mail]>, Norbert Sommer <[e-mail]>,
  Joseph G. Souza <1:322/327>, Diomidis Spinellis <[e-mail]>, G.
  Adam Stanislav <1:129/39>, Dmitry Stefankov (Moscow, USSR), Jonathan
  Story <[e-mail]>, Michael S. Stratoti
  <[e-mail]>, Brad Templeton <[e-mail]>,
  John B. Thiel <[e-mail]>, Finn Thoegerson, David G. Thomas,
  Andrew Torda <[e-mail]>, RS Tse <3:700/1>, John P. Vias
  <[e-mail]>, Helmut Waelder <[e-mail]>,
  Rick Wagner <[e-mail]>, Robin Walker
  <[e-mail]>, Norman Walsh <[e-mail]>,
  J. Weaver Jr., Mike Weaver <1:264/610>, John Werner
  <[e-mail]>, James West <1:140/26>, Bill White
  <[e-mail]>, Paul Williamson
  <[e-mail]>, Manfred Young <fyoung@BIX>,
  <[e-mail]>, Urs Zurbuchen <mcvax!norad!netto!uzurbuch>.

Page 1-15
Table 1-3 used proportional spacing, which throws off the alignment
of much of the table.

Page 2-2, Interrupt 02h
"Memory parity error: all except Jr, CONV, ..." should read "... PCjr,
Convertible, ..."

Page 2-4, Interrupt 09h, IRQ1
after "place system in a tight wait loop", add "until next INT 09h"

Page 2-7, Interrupt 0Dh, CPU-generated
"INT 06 through INT 0C" should read "INT 06h through INT 0Ch"

Page 2-11, Interrupt 50h, DESQview IRQ0
The list of ranges for v2.31 also applies to v2.40.

Page 2-17, Interrupt 77h, IRQ15 - Reserved
delete "(AT,PS)" from heading

Page 2-17, Interrupt 77h, IRQ15 - Power Conservation
delete "(Compaq SLT/286)" from heading

Page 3-3, Interrupt 15h Function 04h
under "Registers at call", "results buffer length 20h" should read
"results buffer of length 20h"

Page 3-4, Interrupt 15h Function 05h
under "Registers at call", "results buffer length" should read
"results buffer of length"

Page 3-5, Interrupt 15h Function 21h
under "Registers at call", the lines for BH and BL should be indented
one stop beyond the "01h" line, as these registers only apply for
subfunction 01h.

Page 3-7, Interrupt 15h Function 80h
extraneous blank lines under "Return Registers"

Page 3-8, Interrupt 15h Function 84h
under "Return Registers", "subfunction 0000" and "subfunction 0001"
should read "subfunction 0000h" and "subfunction 0001h", respectively.

Page 3-17, Interrupt 15h Function C5h
under "Registers at call", "INT 1A" should read "INT 1Ah"

Page 3-19, Interrupt 16h Function 05h
under "Details", "38FCh" should read "38FCh or FC00h"; similarly,
"38FEh or FE00h" and "38FFh or FF00h".

Page 3-22, Table 3-19
"56h GB" should read "56h Golden Bow VFeature"
also add
    50h Disk Manager, read-only partition

Page 3-25, Interrupt 1Ah Function 09h
extraneous blank lines between "Restrictions" and "Return Registers"

Page 3-27
Part of the heading for INT 6Ch was lost.  Insert "INTERRUPT 6Ch"
between "See Also: INT 1Ah ..." and "System Resume Vector"
"MSee Also" should read "See Also"

Page 4-7, Interrupt 16h Function F0h
Return Registers should read "n/a" rather than "unknown"

Page 4-8, Interrupt 16h Function F3h
Return Registers should read "n/a" rather than "unknown"

Page 4-9, Interrupt 15h Function D8h Subfunction 00h
extraneous blank line under "Return Registers"

Page 5-14, Interrupt 10h Function 05h Subfunctions 80h to 83h
Under "Details", "ofphysical" should of course read "of physical", and
"pagedetermines" should be "page determines".

Page 5-18, Table 5-3
"starting column" and "ending column" should be italicized and without
the trailing question marks.

Page 5-20, Interrupt 10h Function 10h Subfunction 08h
delete the "\v" from the heading

Page 5-30, Table 5-6
at offset 05h, "4 Bytes" should be "4 BYTEs"

Page 5-38, Interrupt 10h Function 49h
under "Details", "specify first point" should read "specifies first
point"

Page 5-44, Interrupt 10h Function 4Fh Subfunction 06h
under "Registers at call", the line for CX should be indented

Page 5-44, Interrupt 10h Function 4Fh Subfunction 07h
under "Details", the blank in "are multiplied" is missing

Page 5-48, Interrupt 10h Function 6Fh Subfunction 06h
under "Registers at call", both occurrences of "MGA" should read "MDA"

Page 5-51, Interrupt 10h Function 70h
under "Purpose", "part of all" should read "part or all"

Page 5-52, Interrupt 10h Function 82h
extraneous blank line under "Return Registers"

Page 5-64, Interrupt 14h Function 81h Subfunction 01h
under "Purpose", there is extra space between "to the" and "functions";
under "Details", the blank in "minimal changes" is missing.

Page 5-69
for all three "Details" lines, "end ofthe" should read "end of the"

Page 5-70
for the first three "Details" lines, "end ofthe" should read "end of the"

Page 6-1, Interrupt 13h Function 01h
"Purpose:" should be in boldface.

Page 6-3, Interrupt 13h Function 08h
extraneous blank line between "Purpose" and "Available on"

Page 6-7, Interrupt 63h
extraneous blank line between "Purpose" and "Available on"

Page 6-7, Interrupt 13h Function 05h
in the header, "Fixed Disk:" should be removed

Page 6-7, Interrupt 13h Function 06h
in the header, "Fixed Disk:" should be removed

Page 6-8, Interrupt 13h Function 07h
in the header, "Fixed Disk:" should be removed

Page 6-15, Table 6-5
at offset 00h, "don't have capacity yet" should be italicized and
without the trailing question marks

Page 6-23, Interrupt 78h Function 00h
at the end of the Details section, there is extraneous space between
"interrupt" and "handler"

Page 6-27, Interrupt 13h Function 1Dh
the "Registers at call" section is not correctly indented.  It should
be indented as
    AH = 1Dh
    AL = subfunction
        01h get status record
            DL = drive
        02h set cache status
            ES:BX -> status record
            DL = drive

Page 6-28, Interrupt 13h Function 22h
Return Registers should read "n/a" instead of "unknown"

Page 6-38, Interrupt 21h Function 44h Subfunction 10h
Return Registers should read "n/a" instead of "unknown"

Page 6-38, Interrupt 21h Function 44h Subfunction 11h
Return Registers should read "n/a" instead of "unknown"

Page 6-39, Interrupt 21h Function DCh
Return Registers should read "n/a" instead of "unknown"

Page 7-1, Interrupt 14h Function 00h
"AH = line status (Table 7-2)" should be under "Return Registers"

Page 7-1, Interrupt 14h Function 01h
"AH bit 7 clear if successful" should be under "Return Registers"

Page 7-10, Interrupt 14h Function 00h
Conflicts should be "Standard BIOS - Initialize" rather than "none
known"

Page 7-17, Interrupt 14h Function 1Eh
the line break between "01h if no break" and "BH = parity" was
accidentally omitted

Page 7-21, Interrupt 14h Function A4h
the "Registers at call" section should read
    AH = A4h
    other registers unknown

Page 8-19, Interrupt 21h Function 33h Subfunctions 00h and 01h
Under "Return Registers", "AL = 01h" and following should actually be
under "Registers at call", and should be indented as
    AL = 00h ...
    AL = 01h ... and Control-
         Break checking
        DL = 00h ...
             01h ...

Page 8-39, Interrupt 21h Function 49h
"Details" ends with a comma instead of a period.

Page 8-50, Table 8-42
extraneous blank line in the description at offset -0Ch

Page 8-53, Table 8-49
at offset 00h, "\MACH" should read "\\MACH"
The DR-DOS current directory structure differs from the MSDOS CDS.
    Table 8-49a. Format of current directory structure for DR-DOS 5.0-6.0
    Offset  Size    Description
     00h 67 BYTEs   ASCIZ pathname of actual root directory for this
             logical drive
     43h    WORD    drive attributes
                    1000h SUBSTed drive
                    3000h??? JOINed drive
                    4000h physical drive
                    5000h ASSIGNed drive
            7000h JOINed drive
     45h    BYTE    physical drive number (0=A:) if this logical drive
             is valid
     46h    BYTE    ??? apparently flags for JOIN and ASSIGN
     47h    WORD    cluster number of start of parent directory
             (0000h = root)
     49h    WORD    entry number of current directory in parent
             directory
     4Bh    WORD    cluster number of start of current directory
     4Dh  2 BYTEs   ??? apparently always 0001h
     4Fh    WORD    cluster number of SUBST/JOIN "root" directory
                    0000h if physical root directory

Page 8-55, Tables 8-52 and 8-53
at offset 00h, "if last least-recently" should read "if last; least-
recently"

Page 8-79, Interrupt 21h Function 5Eh Subfunction 04h
under Purpose, "operation" should be "operate"

Page 8-83, Interrupt 21h Function 60h
Backslashes really messed things up here.  The end of "Return
Registers" should read
    buffer filled with qualified name of form
      D:\PATH\NAME.EXT or \\MACHINE\PATH\NAME.EXT
At the end of the first paragraph of the Details section, the single
backslash in quotes should be two backslashes.

Page 8-108, Interrupt 2Fh Function 12h Subfunction 11h
There is an extraneous vertical bar after "Return Registers:"

Page 8-134, Interrupt 2Fh Function 10h Subfunction 80h
under "Details", delete "they may also be turned off with the
undocumented /NC commandline switch".

Page 8-135, Interrupt 2Fh Function 19h Subfunction 04h
The last two lines of this entry should be under Return Registers,
indented as
    ES:DI -> ...
        WORD ...
        N BYTEs ...

Page 10-1, Interrupt 2Fh Function 43h Subfunction 10h
A number of items are incorrectly indented in the description of the
calls to the driver entry point.  For function 01h, the calling
registers should be indented as
    01h Request High Memory ...
        DX = memory in bytes ...
            FFFFh if application program
For functions 0Ah, 0Bh, 0Dh (page 10-2), 0Fh, and 11h (page 10-3), the
return value BL should be indented on tab stop beyond "0000h failure",
as it is for function 06h.

Page 10-7, Interrupt 67h Function 4Ch
There is an extraneous blank line under "Return Registers".

Page 10-17, Virtual Control Program Interface
"to have multiplex" should read "to have multiple"

Page 10-20, Interrupt 67h Function DEh Subfunction 09h
Details: should read "Values for DR4 and DR5 are ignored."

Page 10-20, Interrupt 67h Function DEh Subfunction 0Ah
In the Purpose section, "interrupt" is misspelled as "interrutp".

Page 11-1, Interrupt 2Fh Function FBh Subfunction 42h
under Return Registers, there should be no indenting.  All lines should
start in the same column as "Return Registers".
On the Conflicts: line, "None known" was erroneously boldfaced.

Page 11-2, Interrupt 2Fh Function 16h Subfunction 87h
The lines "Call Mode Switch entry point with:" and "Mode Switch routine
returns with:" should have been boldfaced.

Page 11-4, Interrupt 31h Function 00h Subfunction 02h
on the Purpose: line, "descritor" should be "descriptor"

Page 11-18, Table 11-11
"12 Bytes" should be "12 BYTEs"

Page 11-23, Interrupt 31h Function 06h Subfunction 02h and Subfunction 03h
The Purpose: sections of these two entries were accidentally exchanged.
Subfunction 02h permits the memory to be paged out while Subfunction
03h prevents memory from being paged out.

Page 11-30, Interrupt 31h Function 0Dh Subfunction 02h
The "Registers at call" section should be indented as
    DX = flags
        bit 0: return immediately rather than suspending
               if serialization unavailable
        1: ...

Page 12-1, Interrupt 4Bh Function 81h Subfunction 02h
The heading was not boldfaced.  The end of the Return Registers section
should be indented as follows:
    CF set on error
        AL = error code (see Table 12-1)

Page 13-1, Microsoft Mouse
"Microsoft Mouse The Microsoft mouse driver" should read just "The
Microsoft mouse driver"

Page 13-11, Interrupt 33h Function 0024h
under Return Registers, "on errorotherwise" should read "on error; otherwise"

Page 13-16, Interrupt 33h Function 0042h
The Return Registers section should be indented as
    AX = FFFFh ...
        BX = buffer size....
       = 0000h ...
       = 0042h ...

Page 14-1, Interrupt 16h Function 6Fh Subfunction 00h
The lines under "Registers at call" and "Return Registers" were
erroneously boldfaced.  After the book appeared, I was informed that
this call is actually an HP Vectra installation check, and thus should
be in chapter 4 rather than chapter 14.

Page 14-1, Interrupt 2Fh Function 16h Subfunction 00h
The Available on: and Restrictions: sections were erroneously
boldfaced.

Page 14-4, Interrupt 2Fh Function 16h Subfunction 81h
the last two sentences of the Details section should be a single
sentence; replace "2.x. Get" with "2.x; get"

Page 14-9, Interrupt 2Fh Function 17h Subfunction 0Ah
tables 14-6 and 14-7 were omitted during the publication process.
Under "Registers at call" it should read "(see Table 14-6)", while the
"Return Registers" section should read "(see Table 14-7)".  The two
tables are reproduced here in their entirety.

Table 14-6. GDI Information Index Codes:
Code    Meaning
00h    device driver version
02h     device classification
04h     width in mm
06h     height in mm
08h     width in pixels
0Ah     height in pixels
0Ch     bits per pixel
0Eh     number of bit planes
10h     number of brushes supported by device
12h     number of pens supported by device
14h     number of markers supported by device
16h     number of fonts supported by device
18h     number of colors
1Ah     size required for device descriptor
1Ch     curve capabilities
1Eh      line capabilities
20h     polygon capabilities
22h     text capabilities
24h     clipping capabilities
26h     bitblt capabilities
28h     X aspect
2Ah        Y aspect
2Ch     length of hypotenuse of aspect
58h     logical pixels per inch of width
5Ah     logical pixels per inch of height

Table 14-7. GDI Information Return Codes:
device classification
    00h vector plotter
    01h raster display
    02h raster printer
    03h raster camera
    04h character-stream, PLP
    05h Metafile, VDM
    06h display-file
curve capabilities
    bit 0  circles
    bit 1  pie wedges
    bit 2  chord arcs
    bit 3  ellipses
    bit 4  wide lines
    bit 5  styled lines
    bit 6  wide styled lines
    bit 7  interiors
line capabilities
    bit 1  polylines
    bit 2  markers
    bit 3  polymarkers
    bit 4  wide lines
    bit 5  styled lines
    bit 6  wide styled lines
    bit 7  interiors
polygon capabilities
    bit 0  polygons
    bit 1  rectangles
    bit 2  trapezoids
    bit 3  scanlines
    bit 4  wide borders
    bit 5  styled borders
    bit 6  wide styled borders
    bit 7  interiors
text capabilities
    bit 0  output precision character
    bit 1  output precision stroke
    bit 2  clippping precision stroke
    bit 3  90-degree character rotation
    bit 4  arbitrary character rotation
    bit 5  independent X and Y scaling
    bit 6  double-size
    bit 7  integer scaling
    bit 8  continuous scaling
    bit 9  bold
    bit 10 italic
    bit 11 underline
    bit 12 strikeout
    bit 13 raster fonts
    bit 14 vector fonts
    bit 15 reserved
clipping capabilities
    00h none
    01h clipping to rectangles
raster capabilities
    bit 0  simple bitBLT
    bit 1  device requires banding support
    bit 2  device requires scaling support
    bit 3  supports >64K bitmap

Page 15-1, Interrupt 10h Function FFh
There is an extraneous blank line in the heading.  Under Registers at
call, "ES:DI - first" should read "ES:DI -> first"

Page 15-6, Interrupt 15h Function 10h Subfunction 1Fh
under "Registers at call", substitute "ES:DI" for "DS:DI"

Page 15-10, Interrupt 15h Function 12h Subfunction 00h
there are extraneous blank lines under both "Registers at call" and
"Restrictions".

Page 15-12, Interrupt 15h Function 12h Subfunction 02h
on the Purpose line, read "object" for "objects", as only a single
object is freed

Page 15-14, Interrupt 15h Function 12h Subfunction 04h
There is an extraneous blank line under both "Registers at call" and
"Return Registers"

Page 15-35, Interrupt 15h Function 12h Subfunction 0Ch
The Purpose line should read "Prepare for I/O" rather than "Prepare of
I/O".  There is also an extraneous blank line under "Registers at call"

Page 15-37, Interrupt 15h Function 12h Subfunction 0Eh
there should have been a line break between "keyboard: discard input"
and "timer: cancel current interval"

Page 15-40, Interrupt 15h Function 12h Subfunction 11h
The "STACK: DWORD ..." line should not have been indented

Page 15-40, Interrupt 15h Function 12h Subfunction 12h
The "STACK: DWORD ..." line should not have been indented

Page 15-44, Interrupt 15h Function DEh Subfunction 00h
New information has become available indicating that the return value
is the offset of the program most recently selected from the "Switch
Windows" menu, rather than the calling program.

Page 15-44, Table 15-7
at offset 00h, add "(FFh if end of file)"
change the last two lines to read
    BYTE program type
    WORD apperently always 0000h

Page 15-54, Interrupt 21h Function 2Bh
The last two lines of the "Registers at call" section should not have
been indented.

Page 15-55, Interrupt 2Fh Function DEh Subfunction 01h
There is an extraneous blank line prior to the Details section.

Page 16-3, Interrupt 14h Function 23h
under "Return Registers", the line describing bit 6 of AH was indented
much more than it should have been.

Page 17-1, Interrupt 11h Function FFh Subfunction FEh
under "Return Registers", the return values for calls 01h and 02h
("DX:AX -> unknown" and "n/a") should not be indented

Page 17-8, Interrupt 15h Function 54h Subfunction 00h and Subfunction 01h
under Return Registers, "unknown" should be "n/a"

Page 17-9, Interrupt 15h Function 54h Subfunction 02h through Subfunction 06h
under Return Registers, "unknown" should be "n/a"

Page 17-10, Interrupt 15h Function 54h Subfunction 07h
under Return Registers, "unknown" should be "n/a"

Page 17-10, Interrupt 21h Function E1h
under Conflicts, change "OS/286, OS/386 (chapter 1)" to "OS/286, OS/386
(chapter 9)"

Page 17-11, Interrupt 21h Function E2h
under Conflicts, change "OS/286, OS/386 (chapter 1)" to "OS/286, OS/386
(chapter 9)"

Page 18-15, Interrupt 7Fh Function 02h
under Return Registers, "AH = semaphore owner" should be indented one
tab stop beyond the line above.

Page 18-18, Interrupt 7Fh Function 08h Subfunctions 00h and 01h
there is an extraneous blank line in the "Return Registers" section

Page 18-21, Interrupt 7Fh Function 10h Subfunction 04h
under Purpose, read "datagram" for "datagrams"

Page 18-22, Interrupt 7Fh Function 10h Subfunction 06h
On the Details line, "functio" should be "function"

Page 18-23, Interrupt 7Fh Function 10h Subfunction 09h
On the Details line, "functio" should be "function"

Page 18-31, Interrupt 7Fh Function 37h
"adderss" should be "address" on the Purpose line

Page 19-6, Interrupt 2Fh Function 11h Subfunction 0Fh
there is an extraneous blank line in the "Registers at call" section

Page 19-9, Interrupt 2Fh Function 11h Subfunction 17h
Part of a line has been misplaced.  The "Registers at call" section
should read in part
    SDA CDS pointer -> current directory structure for
        drive with file
    STACK at call: WORD file creation mode
        low byte....

Page 19-9, Interrupt 2Fh Function 11h Subfunction 18h
The Details section is misplaced.  It should be after the "STACK at
call" portion and immediately prior to "Conflicts:"

Page 19-15, Interrupt 2Fh Function 11h Subfunction 2Eh
there is an extraneous blank line under "Registers at call"

Page 19-21, Table 19-3
the table's heading is misplaced

Page 20-5, Interrupt 21h Function C1h
Under "Purpose", read "specified" for "specied"

Page 20-16, Table 20-5
at offset N, "propertyis" should of course be two words

Page 20-31, Table 20-15
at offset 1Fh, "data stream type" is missing both blanks

Page 20-32, Interrupt 7Ah Function 0014h
Return Registers should be "n/a" rather than "unknown"

Page 21-1, Interrupt 21h Function 5Fh Subfunction 80h
Under "Return Registers", the quoted backslash should be doubled

Page 21-2, Interrupt 21h Function 5Fh Subfunction 81h
under Details, "\machine" should read "\\machine\username"

Page 21-2, Interrupt 21h Function 5Fh Subfunction 82h, Subf 84h, Subf 85h
in all three entries, the backslashes should be doubled

Page 21-3, Interrupt 21h Function 5Fh Subfunction 86h and Subfunc 97h
the backslash under "Registers at call" should be doubled (i.e "\\")

Page 21-5, Interrupt 21h Function 5Fh Subfunction A0h
the backslash under "Registers at call" should be doubled (i.e "\\")

Page 21-7, Interrupt 21h Function 5Fh Subfunction A3h
the backslash under "Registers at call" should be doubled (i.e "\\")

Page 21-8, Interrupt 21h Function 5Fh Subf A4h, Subf A5h, Subf A7h, Subf B0h
in all four entries, the backslash under "Registers at call" should be
doubled (i.e "\\")

Page 21-9, Interrupt 21h Function 5Fh Subfunction B1
the backslash under "Registers at call" should be doubled (i.e "\\")
there are extraneous blank lines under "Return Registers"

Page 21-10, Interrupt 21h Function 5Fh Subfunction B2h
the backslash under "Registers at call" should be doubled (i.e "\\")

Page 22-11, Table 22-34
at offset 03h, "sessoin" should of course be "session"

Page 23-8, Table 23-11
at offset 0Dh for operation codes 00h/06h, "explicity" should be
"explicit"

Page 24-6, Interrupt 6Ah Function D3h Subfunction 00h
"rConflicts:" should of course be "Conflicts:"

Page 26-2, Interrupt 21h Function A0h
under "Return Registers", the description for AL bits 2-0 has been
indented one tab stop too far

Page 26-15, Table 26-8
for value 1Fh, "position of" is missing the blank

Page 27-8, Table 27-8
at offset 08h, "pointer" was misspelled

Page 27-10, Table 27-13
at offset 40h, bit 15, "during" was misspelled

Page 28-7, Interrupt 21h Function 2Bh Subfunction 44h
I have been informed that the Return Registers should read
    AX = 4F4Bh ('OK') if large host loaded
       = 6F6Bh ('ok') if small host loaded
    CX:DX -> API entry point

Page 29-7, Interupt 2Fh Function CBh Subfunction 0Fh
under "Registers at call", the last line ("DH =") should be indented
one tab stop further than the line above

Page 29-8, Table 29-4
at offset 0Bh, "already" was misspelled

Page 29-12, Table 29-7 and Table 29-8
Several index entries (the lines starting with ".i.") wound up as
printable text....

Page 33-7, Interrupt 16h Function FFh Subfunction B5h
the boldfacing on the second line of the heading was lost

Page 34-1, Interrupt 21h Function 33h Subfunction E0h
for Return Registers, read
    "AL = E0h if resident"

Page 36-3, Interrupt 2Fh Function D4h Subfunction 4Eh
the last word on the Purpose: line should be "level"

Page 36-13, Table 36-8
in the description for value 16h, "length overrun" is missing the blank

Page 36-41, Interrupt 2Fh Function D1h Subfunction 03h and Subfunc 04h
in both entries, under Return Registers, for AH = 04h, "redefinded"
should of course be "redefined".  This error was in the original
interrupt list....

Page 36-50, Table 36-17
the second line of the description for value 08h was not sufficiently
indented.

Page 36-59, Table 36-19
The first word of the description for value 0Ch should be "fetch" not
"etch".  The table also has several misaligned entries on the following
page.




In addition to the above, throughout the book there are numerous items
which should line up vertically but do not.