             Model 4 / 4D / 4P  Products from M. A. D. Software
                  October 15, 1995   (80x66 ASCII format)


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HBUILD6 - Boot your Model 4P, 4 or 4D directly from your Hard Disk

HBUILD6 allows the Model 4, 4D or 4P owner with a hard disk  drive  to  boot
directly  into  LS-DOS  6.3.x or TRSDOS 6 from the hard disk without using a
start-up floppy.  HBUILD6 is completely transparent to the operating  system
and uses no additional program memory.

Certain  Model 4P and all Model 4 and 4D systems require a new ROM, which is
included.  Detailed instructions assist you during  the  installation  which
usually  takes less than 40 minutes and normally does not require soldering.

HBUILD6 supports hard disk drivers in low or high memory.  Also included are
utilities  to dynamically apply XLR8er accelerator patches (XLR8SET), to po-
sition disk drivers in low or high memory (FORCEHI),  and  to  edit  command
line  errors  (OOPS).  When ordering HBUILD6, use the following chart to de-
termine which part number goes with your system.  (The  same  utilities  are
provided with all part numbers.)

To  order  HBUILD6, identify your computer and the type of hard disk drivers
you are using now in this chart:

                                System

               Model 4*       Model 4 and    Model 4P       Model 4P
               non-gate-      and 4D         all            all
               array          gate-array     versions       versions
Disk Driver
being used

Radio Shack    4BHB650        4DHB670        4PHB630        4PHB640
TRSHD6         $20.00         $30.00         $10.00         $30.00

Misosys        4BHB652        4DHB672        4PHB632        4PHB642
RSHARD6        $20.00         $30.00         $10.00         $30.00

Misosys        4BHB655        4DHB675        N/A            4PHB645
MSCSI6         $20.00         $30.00                        $30.00

Powersoft      4BHB656        4DHB676        4PHB636        4PHB646
Series RS      $20.00         $30.00         $10.00         $30.00

Powersoft      4BHB657        4DHB677        N/A            4PHB647
Series I       $20.00         $30.00                        $30.00


This HBUILD6
Package        XROM**         XDROM**        disk           4P-ROM**
Includes       and disk       and disk       only           and disk

*    To determine if your Model 4 is a gate-array or non-gate-array  system,
     locate  the  RS232 connector.  If it is on the bottom (faces downwards)
     of the Model 4, the system is a non-gate-array.  If the RS232 connector
     is  on the back of the machine, the system is a gate-array system.  The
     ROMs required for these systems are not interchangeable.

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     Note: Model 4's built in 1983 may also require a new "A" ROM to be able
     to  use HBUILD6.  To test your machine, boot your system into ROM BASIC
     (hold down the BREAK key and press RESET.)  Once you are in ROM  BASIC,
     type the following statement and a single character will be displayed:
          PRINT CHR$(PEEK(1490))
     If  the  character that was displayed is 'O', then you have the old "A"
     ROM and must replace it to be able to use HBUILD6.  The part number for
     the latest "A" ROM is listed below.

**   The XROM, XDROM and 4P-ROM provide other features in addition to allow-
     ing you to boot from a hard disk drive.  Each ROM is described  in  de-
     tail elsewhere in this catalog.


Requirements:
CPU            Model  4/4D/4P  systems  with a standard Z80A or any superset
               processor, including the XLR8er adapter.

Firmware       Model 4 systems with non-gate-array main  logic  boards  must
               have XROM firmware installed, which is included.

               Model  4  owners must make sure that they have the latest "A"
               ROM, Radio Shack part number 8048364A.

               Model 4D or Model 4 systems with gate-array main logic boards
               must have XDROM firmware installed, which is included.

               Model  4P  systems with non-Radio Shack hard disk controllers
               must have new 4P-ROM firmware installed.  4P systems with Ra-
               dio  Shack  hard  disk controllers do not have to replace the
               firmware but can if they want to take advantage of the  other
               features  the 4P-ROM provides.  Use the appropriate part num-
               ber (see above) to indicate if you desire a  4P-ROM  or  not.
               (Look  for  a detailed description of the 4P-ROM elsewhere in
               this catalog.)

Keyboard       Only US-layout keyboards are supported.  Systems with  German
               or French keyboards cannot use XROM or XDROM.

Floppy Drive   A  5.25" SSDD or DSDD floppy drive is required during instal-
               lation.

Hard Disk      A Radio Shack hard disk controller or a programmable
Controller     equivalent.
          or   A MISOSYS host interface and a Xebec  or  Adaptec  disk  con-
               troller.
          or   A  Western Digital disk controller with the register file lo-
               cated at ports 0x78 - 0x7f.  This is compatible with the Pow-
               ersoft Series I hard disk drive systems.

Hard Drive(s)  Any drives that are supported by the driver your system uses.

Configuration  LS-DOS 6.3.x or TRSDOS 6 must be installed and a system drive
               must start on head 0, cylinder 0 of the primary drive.  (Oth-
               er operating systems that are stored on other  parts  of  the
               drive or on secondary drives will not be disturbed.)


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Model 4/4D "A" ROM - 8048364A - Checksum 8F46
                                                  Specify 4GR64A0     $15.00

The latest "A" ROM, used in all Model 4 and 4D systems.  Replaces the  obso-
lete  8048364,  which was used in early Model 4 production.  A 8048364A must
be present in a Model 4/4D for HBUILD6 or the XROM/XDROM to work  correctly.

***NOTE: This newer "A" ROM cannot be used with an old "C" ROM.  The "A" and
     "C" ROMs are a matched set.)


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XROM -  Extended ROM for non-gate-array Model 4 systems

     With hard disk driver for Radio Shack WD1000 or TB1 controllers
                                                  Specify 4BXR650     $18.00

     With hard disk driver for MISOSYS SCSI Host interface and
        Adaptec or XEBEC disk controller          Specify 4BXR655     $18.00

     With hard disk driver for non-Radio Shack WD1000 controllers
        that are port-mapped at 0x78 - 0x7f       Specify 4BXR657     $18.00


XDROM - Extended ROM for gate-array Model 4 and Model 4D systems

     With hard disk driver for Radio Shack WD1000 or TB1 controllers
                                                  Specify 4DXR670     $28.00

     With hard disk driver for MISOSYS SCSI Host interface and
        Adaptec or XEBEC disk controller          Specify 4DXR675     $28.00

     With hard disk driver for non-Radio Shack WD1000 controllers
        that are port-mapped at 0x78 - 0x7f       Specify 4DXR677     $28.00

The  XROM  or  XDROM  improve performance when using any Model III operating
system or ROM BASIC.  They also allow you to boot directly from a hard  disk
or Networks III or 4.  (This part is included when you order HBUILD6 for the
Model 4 or 4D.)  These ROMs replace the "C" ROM or "D" ROM in your  Model  4
or  4D.   Detailed  instructions  assist  you  in removing the cover and in-
stalling the ROM in your system.  Installation in most cases takes less than
30 minutes.  The new Model III-mode features include:

o    The  keyboard  produces all 128 ASCII characters, handles key-rollover,
     and performs "debouncing" correctly at 2 and 4 MHz.
o    The keyboard repeat rate is adjustable.
o    The time-of-day clock keeps correct time even when the system  is  run-
     ning  at  4 MHz.  The cursor also blinks at the same rate regardless of
     the current CPU speed.
o    A fully programmable 6845 CRT controller can be used in  place  of  the
     68045 used by Radio Shack.
o    All  calls into the "C" ROM that are documented by LDOS and Radio Shack
     produce the same results as in the original part.
o    Interrupt-driven software performs more reliably than in  the  original
     "C" ROM.

The  XROM/XDROM comes with documentation on the new Model III-mode features.
The XDROM includes built-in tests  for  memory,  video,  floppy  drive,  and
printer (available via a factory test option jumper.)
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Requirements:
CPU            Model 4 non-gate-array systems should order "X" ROM.
               Model 4 or 4D gate-array systems should order "XD" ROM.

Processor      Z80A  or a superset processor, including the XLR8er accelera-
               tor. *

Floppy Drive   Any Radio Shack-compatible configuration including no drives.

Hard Drive     Any Radio Shack-compatible configuration including no drives.

Software       Operating Systems tested: LDOS 5, TRSDOS 6, LS-DOS 6,  CP/M+,
               NEWDOS, TRSDOS 1.3/1.4.

Firmware       Model  4  owners must make sure that they have the latest "A"
               ROM, Radio Shack part number 8048364A. **
               This part is available elsewhere in this catalog.   Model  4s
               built  after 1983 and Model 4Ds should have the correct part.

Hardware       The XROM/XDROM may be used with a SmartWatch(TM) clock  chip.
               (Model  4 owners must not have disabled wait-state generation
               for ROM accesses.)

Keyboard       Only US-layout keyboards are supported.  Systems with  German
               or French keyboards cannot use XROM, or XDROM.

*    The  XLR8er(TM)  accelerator  is supported provided that it worked with
     the system prior to the installation of the XROM or XDROM and your sys-
     tem  has  not been modified to defeat the wait-state generation for ROM
     accesses.

**   Model 4's built in 1983 may also require a new "A" ROM to  be  able  to
     use the "X" ROM.  To test your machine, boot your system into ROM BASIC
     (hold down the BREAK key and press RESET.)  Once you are in ROM  BASIC,
     type the following statement and a single character will be displayed:
          PRINT CHR$(PEEK(1490))
     If  the  character that was displayed is 'O', then you have the old "A"
     ROM and must replace it to be able to use the "X" ROM.  The new "A" ROM
     is listed on the previous page.


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XLR8SET Source Code                               Specify   4GXL01    $5.00

XLR8SET comes with HBUILD6 and is used to initialize the XLR8er adapter each
time LS-DOS 6 is booted.   It also loads modifications (similar to the Houde
patches but only uses 37 bytes) to  the  operating  system  that  allow  for
faster  operation.   We have had numerous requests for additional customiza-
tions, so we are making the source code available so  that  you  can  do  it
yourself.   Written  in  ALDS  Z80  assembly  with excellent comments and no
macros, XLR8SET can be easily converted to most other assemblers.


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4P-ROM - Enhanced ROM for Model 4P systems

     With hard disk driver for Radio Shack WD1000 or TB1 controllers
                                                  Specify 4PBR640     $28.00

     With hard disk driver for MISOSYS SCSI Host interface and
         Adaptec or XEBEC disk controller         Specify 4PBR645     $28.00

     With hard disk driver for non-Radio Shack WD1000 controllers
         that are port-mapped at 0x78 - 0x7f      Specify 4PBR647     $28.00

The  4P-ROM  adds new features and improves performance on Model 4P systems.
(When ordering HBUILD6 for the Model 4P, this part  may  be  included.   See
HBUILD6 for more information.)  The new features include:

o    The  Model  III-mode  ROM-image loads from floppy in less than six sec-
     onds.
o    Floppy booting (including ROM-image loading) is much more reliable.
o    Built-in diagnostics include a full 64K RAM test, disk test  and  video
     diagnostics.
o    New French and German error messages.
o    Hard  disk boot-interlock is provided.  The system will not try to boot
     from a hard disk unless the hard disk contains a valid boot track.   No
     more holding the F2 key.
o    Hard  disk  booting  is available for several types of disk controllers
     and drivers.  (See the HBUILD6 product for more information.)
o    Hard disk booting will wait for slower drives to come on-line.  This is
     useful if you expect your system to power-up unattended.
o    A  fully  programmable  6845 CRT controller can be used in place of the
     68045 used by Radio Shack.
o    Handles gate-array and non-gate-array systems properly.   The  original
     Radio  Shack  ROM  does  not handle the floppy disk controller on gate-
     array systems correctly.

Detailed instructions assist you during the installation of the 4P-ROM which
can be done in about 25 minutes.  The ROM is a socketed part so no soldering
is required.


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M. A. D. Software Model 4/4D/4P Utility Disk #1
                                        Specify 4G6UT01     $15.00

Our  first utility disk provides tools that are common in more sophisticated
operating environments, but have been missing in the TRSDOS/LS-DOS  6  envi-
ronment until now.  See the review in TRSTimes!

Several of the utilities are clones of popular commands available on BSD and
derived *NIX systems.  Minimal implementations of a few of  these  utilities
have  been  available  for TRSDOS/LS-DOS 6 before, but never full-blown ver-
sions, with all the features that make them truly useful!

Here are some of the utilities that are included:
o    'MORE' displays files a screen at a  time,  can  search  through  files
     skipping  undesired  output.  Able to switch back and forth between nu-
     merous files.

o    'LOOK' will examine any  diskette  and  determine  what  format  it  is
     recorded  in.   Have  you ever inserted a disk and tried to do a DIR of
     it, and the operating system locked-up because the disk was in an alien
     format?   By using LOOK, you can avoid that.  LOOK is able to recognize
     over two dozen diskette formats, and you can easily tell LOOK about any
     that  we  missed!   If the disk is in TRSDOS/LS-DOS 6 or LDOS 5 format,
     LOOK also displays tables showing exactly where each  file  resides  on
     the  disk.   LOOK  can  even  identify disks that are recorded in high-
     density formats and disks that have never been  formatted  at  all.   A
     great  tool  for  the  person  who uses different operating systems and
     doesn't always remember to label diskettes.

o    'MAPMEM' displays all the drivers, filters  and  other  memory  modules
     that  are  present  in  high or low memory.   Mapmem also organizes the
     modules by type and displays an understandable description of each mod-
     ule.   You  can  easily customize the descriptions and add any new ones
     that your system may need.

o    'LS' displays the files in directories in numerous formats and  sorting
     orders.   The output can be directed to the screen, printer, a file, or
     even through the MORE program.

o    'WC' reads the specified files and counts  the  number  of  characters,
     words and lines that are in the files.

o    'PIPES' allows the output of one program to be passed to another as in-
     put.  Almost any program can be used with 'PIPES', even existing system
     utilities such as 'DIR'.

o    And other utilities we don't have room to mention here.

All  the  utilities on the disk that manipulate files will accept full wild-
card file specifications.  Output can be sent to the printer or a file,  and
the  ability  to  specify  default options is provided.   Most commands also
have a built-in help menu that can be displayed.

Over 25 pages of printed documentation fully describe all of the  parameters
and  options  available in each utility.  There are also examples on how you
can adapt each utility to your system and to your personal work habits.   An
electronic version of the documentation is also provided.

Notice:   OOPS,  XLR8SET  and  FORCEHI  are included with this utility disk.
Older versions of these programs are included with other  M. A. D.  Software
products.

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Radio Shack ROMs, PALs and System disks for Model III/4/4D/4P systems

These ROMs, PALs and diskettes were obtained from Radio Shack when they  re-
duced  their  Model  4, 4D and 4P parts inventory.  We carry them for people
who desire to make their own repairs or upgrades.

NOTE: Unless otherwise stated, documentation is not provided with these  re-
placement parts.

ATTENTION:    We  no longer purchase Radio Shack ROM and PALs.  We will con-
tinue to carry these parts until our supply is exhausted.


Universal Character Generator - used in all Model 4/4D/4P systems
                                                  Specify 4GRCG00     $6.00

If your Model 4 was built before 1984, it may contain an obsolete  character
generator.  About that time, Radio Shack switched to a "universal" character
generator which was used in all subsequent U.S. and  international  versions
of  the  Model  4,  4P,  4D and 2000.  To check to see if you have the older
part, go into Model 4 Disk BASIC and type:
     ?CHR$(0);CHR$(26) <ENTER>
If a vertical line is displayed, then you have the newer part.  If  you  see
the  letter  'a' or some other character, you should consider upgrading your
machine.  Instructions for installation of this genuine Radio Shack part are
included.   Documentation on the universal character set begins on page A-58
of the TRSDOS 6.2 Disk System Owners Manual.


Model 4 "B" ROM - 8040332 - Checksum 407C
                                                  Specify 4BR3200     $8.00

For non-gate-array (three-ROM) Model 4 and Model III systems.


Model 4 U4 PAL - Video clock generator - 8075268
                                                  Specify 4PU4000     $5.00

For non-gate-array Model 4 systems.


Model 4 U59 PAL - ROM/Video/Keyboard address decoder - 8075368
                                                  Specify 4PU5900     $5.00

For non-gate-array Model 4 systems.


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TRSDOS 06.02.01 System Disk
                                                  Specify 4GR6201     $10.00

The last version of TRSDOS 6.x sold under the Tandy name.  It does  not  ac-
cept  dates after 1987, but patches are available to extend the range of the
date in a way similar to what LS-DOS 6.3.x does.  Printed  documentation  is
not  included.   We will replace the MODELA/III file on these disks with our
latest version unless you request otherwise.


LS-DOS 06.03.01     System Disk
                                                  Specify 4GR6301     $20.00

Tandy obtained rights to LS-DOS from Logical Systems and  then  Misosys  for
sale  of  LS-DOS 6.3 to Tandy customers via the Tandy special order catalog.
There is no manual and we have a  very  limited  quantity  of  these  disks.
These disks do not contain the last patch-level released by MISOSYS, but you
can apply the patches yourself.  We will  replace  the  MODELA/III  file  on
these disks with our latest version unless you request otherwise.


TRSDOS 01.03.02 System Disk
                                                  Specify 4GR1302     $5.00

The  last  version  of Model III TRSDOS 1.x widely distributed by Tandy.  We
will replace the MODELA/III file with the latest version unless you  request
otherwise.


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MODELA/III Data Diskette
                                                  Specify 4PD3000     $1.00

This is the latest version of the MODELA/III, straight from the original au-
thor.  It allows the Model 4P user to take advantage of most  of  the  Model
III-mode  features  of  our XROM and XDROM products.  The MODELA/III file is
for systems with US keyboards.  It is not usable with German or French  sys-
tems.  This disk is in the TRSDOS 1.3.x format.

This  item will be included at no charge (on request) with a purchase of $10
or more.


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Upgrades

The following table shows the current release levels for software and ROMS
provided by M. A. D. Software.

Product                  Current Version

HBUILD6   for all drivers     2(13)      (last part of serial number)

XROM and XDROM for SCSI       33         (last two digits of serial number)

XROM and XDROM for RS driver  32 or 33   (last two digits of serial number)
(Radio Shack, Misosys & Powersoft)

XROM and XDROM for Powersoft I
                              32 or 33   (last two digits of serial number)

4P-ROM all versions           36         (last two digits of serial number)

XLR8SET   source code         1(4)

Utility Disk #1 Disk 1        Fa 1 Lo 1 Ls 4 Ma 1 Mo 2 Oo  2 Pi 4 Wc 1 Xl 3
Utility Disk #1 Disk 2        Fa 6 Lo 6 Ls 6 Ma 4 Mo 9 Oo 16 Pi 1 Wc 2 Xl 5

If you have an older version of any of these products, you may want to  con-
sider upgrading to the current version.  Please contact us for details.

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Ordering information

M.A.D. Software
P.O. Box 331323
Ft. Worth, Texas  76163

We accept U. S. money orders and checks.  We also accept postal money orders
in  U.  S.   currency.   Sorry, but we do not accept credit cards.  Foreign,
non-postal money orders or checks are subject to a $25 service charge at our
bank  and are not recommended.  Prices are subject to change without notice.

Texas residents must add the current state sales tax (6.25%).  (The rate for
Texas residents of Tarrant County is 8.25%.)

Shipping  for  one or two items is $4.00 U.S.A., $5 Canada, $8 Foreign.  For
each additional item, add $.50.  We may ship your order  via  U.P.S.  unless
you specify otherwise or if your address is a P.O. Box.

Please  include  a daytime phone number or an Internet EMAIL address that we
can use to reach you if there is a question about your order.   Most  orders
will be shipped within two weeks.  If the order is delayed by more than four
weeks, we will contact you and give you the option to cancel.

When ordering ROMs, please make sure you are ordering the correct  part  for
your  system.   These components only work in a specific model computer.  We
will exchange parts if you order the wrong one, but we cannot  exchange  the
wrong part once you have installed it and turned the computer on.

We will be happy to answer any questions you have to ensure that you are or-
dering the right parts for your system.

You can contact us on the Internet at  madcs@madsoft.lonestar.org

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