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Screenshots - AT-Speed

AT-Speed atari screenshot
AT-Speed atari screenshot
AT-Speed atari screenshot
AT-Speed atari screenshot
AT-Speed atari screenshot
AT-Speed atari screenshot

Information - AT-Speed

GenreHardware - Emulation / OS FixingYear1990
Language[unknown]PublisherCOMPO Software
ControlsMouseCountryUnited Kingdom
Box / InstructionsEnglishSoftwareEnglish


SerialST TypeST, STe / 0.5MB
ResolutionMedium / HighNumber of Disks1 / Single Sided
Dumpdownload atari AT-Speed Download / STMIDI

Additional Comments - AT-Speed

Other version with the same title:

Sack Electronic (version 2.21) ().

Disk - AT-Speed

AT-Speed Atari disk scan

Instructions - AT-Speed

    READ_ME Revision 7/11/90 COMPO Software Ltd UK

                   Important information about AT-SPEED


                      Copyright 1990 Sack Electronic

1.  A small accessory printed circuit board containing a 74LS74 chip is 
    installed on some MEGA ST's. For a flawless operation connect pin 1 of 
    this board via a 220 Ohm series resistor to pin 12 of the 68000 
    microprocessor. However some MEGA's will function properly without 
    this board by connecting the yellow wire attached to the small PCB 
    directly to pin 12 of the 68000 CPU.

2.  The 80286 becomes real hot during operation (70 degrees C.), but this is 
    normal, you don't have to worry. If you have built-in more additional 
    harware like graphic cards (e.g. for the SM194), a hard disk with 
    controller and a 16 MHz 68000 CPU in a MEGA ST you should check if the 
    power supply (max. 3 Amp.) doesn't become overloaded. AT-SPEED consumes 
    about 0.5 Amp.

3.  The bridge adapter 'SPEED-BRIDGE' which enables you to install PC-SPEED 
    without soldering in a MEGA ST may be used for installing AT-SPEED without 

4.  When AT-SPEED boots it attemps to execute the bootsector program. If a TOS 
    formatted disk is in the drive or there is no DOS formatted partition on 
    the hard disk AT-SPEED will crash.

5.  AT-SPEED transfers actual time from TOS to DOS automatically. You don't 
    need the program TIMER.COM anymore from the PC-SPEED masterdisk.

6.  AT-SPEED has the ability to emulate graphic boards and also a direct mode. 
    The normal screen memory of the ST which resides at memory location 
    $E000:0000 can be accessed by the 80286 CPU directly without waitstates, 
    in contrast to the emulation of the graphic cards. It is a pity that not a 
    single PC-program uses this fast graphics mode. With the enormous 
    worldwide distribution of PC- and AT-SPEED there will be some day in the 
    PC/AT-software an option to install for the <<< ST-Graphiccard >>> or 
    there will be some special drivers (eg. BGI-drivers for Turbo-products). 
    It's only a matter of time.

7.  MEGADISC.SYS is a driver for a RAM disk which runs in memory over 1 MB. To 
    use this RAM disk insert the following line in your CONFIG.SYS file:

        DEVICE=  <\path>\MEGADISC.SYS

    (No options are required.)

    The following memory capacities are available:

        0 MB with a MEGA ST2

        1.5 MB with MEGA ST2.5

        3 MB with MEGA ST4

    Note: When AT-SPEED is installed as a desk accessory it will use memory!

8.  AT-SPEED supports Extended Memory (XMA), but only with ST's with more than 
    1 MB of free memory. The INT15 function 87HEX and 88HEX are supported. The 
    following memory capacities are available:

        0 MB with at a MEGA ST1, 1040, 520, 260 ST

        1 MB with a MEGA ST2

        1.5 MB with a MEGA ST2.5

        3 MB with a MEGA ST4.

    Note:   When AT-SPEED is installed as a desk accessory it will use memory!

            NORTON SI displays the additional EMS capacity.

            From DOS 3.3 on the VDISK.SYS ramdisk-driver can be used in EMS. 
            To use it insert the following line in your CONFIG.SYS file:

                DEVICE= <\path>\VDISK.SYS  /E

            (Capacity in kB.)

            When you install big RAMdisks it will be necessary to increase the 
            number of directory entries otherwise you will get error messages. 
            The default setting is 64 entries. With other applications on 
            using XMA difficulties may occur if programs are using the special 
            functions of the 80386 processor directly which are not supported 
            by the 80286. The 80286 CPU has no integrated PMMU like the 80386 

    Note:   Extended Memory is not the same as Expanded Memory! But there are 
            some special drivers which may exchange Extended to Expanded 
            Memory, like EXTMEMS.SYS from SOFTBYTE.

9.  When you use a serial and Microsoft-compatible mouse you could use this 
    under TOS with the aid of the PC_MOUSE.PRG. After some mouse movement the 
    mouse cursor moves.

    Note:   It is possible that with some hardware oriented programs the mouse 
            doesn't function correctly. You can use the ST-mouse and the 
            PC-mouse parallel.

10. You can use your ST-mouse under DOS. Note the Keyboard/Mouse options in 
    the ATS_INST.PRG. The following mouse options are available:

    RS232:          You can use the RS232 interface up to 9600 Baud under DOS 
                    (COM1). It is also possible to connect a serial Microsoft 
                    compatible mouse.

    MICROSOFT-MOUSE:The ST-mouse appears under DOS as a Microsoft compatible 
                    mouse. In order to work with this mouse you will need the 
                    equivalent mouse-driver which is supplied with many DO 
                    S-programs. Add the driver's name to the CONFIG.SYS file.

            Note:   There are some mouse drivers which only support 
                    Mouse-Systems compatible mice. Do not use these drivers. 
                    If a mouse driver is named MSMOUSE.COM it is possible that 
                    the mouse driver only supports Mouse Systems mice. The 
                    RS232 interface is not supported in this mode.

    CURSOR-MOUSE:   In this mode the ST-mouse does only emulate the function 
                    of the cursor-keys. In this mode cursor oriented programs 
                    become fast mouse driven programs.

11. If you push the [(] key on the numberic keypad at the same time with the 
    [i] key the screen inverts on a monochrome monitor.

12. In monochrome mode it is possible to switch the fonts in the ATS_INST.PRG 
    in the menu 'Screen'.

13. You can access up to 24 partitions (C to Z) on your harddisk by using the 
    ADD_PART.SYS driver. You can also use more than one harddrive. If you want 
    to use more than 2 partition with DOS insert the following line in your 
    CONFIG.SYS file:

        DEVICE=  <\Path>\ADD_PART.SYS

    (No options are required.)

    After rebooting your computer ADD_PART.SYS reports the letter(s) of the 
    new drives. With up to two partitions the ADD_PART.SYS driver is not 

    Notes:  In ATS_INST.PRG choose the option DISK/HDType: MULTI.

            NORM and ICD still remain due to compatibility and function 

            You can use partitions up to 32 MB (using AHDI 3.0) under DOS.

            You cannot use such big DOS-drives as C: and D:. Partitions bigger 
            than 32 MB on any partition of your harddrive are not supported by 

14. In CGA graphics mode you can emulate the TANDY 1000 graphics. Many 
    DOS-games often support this resolution. The TANDY 1000 graphic card is 
    able to display 320 x 200 pixels in 16 colors (BIOS video mode 9). On the 
    ATARI monochrome monitor grayscales are emulated, on a color screen 16 
    colors are displayed.

15. You can adjust the steprates on drives A and B separately by using the 
    ATS_INST.PRG in the menu DISK/Steprate. Common 3.5" drives require 3 ms 
    steprate. 5.25" drives require 6 ms, while older, very slow drives require 
    12 ms. To read/write HD disks with 1.44 MB 3.5" drives (and specially 
    tuned floppy controller) you'll have to double the steprate (eg. from 3 ms 
    to 6 ms).

16. Programmers may have access to the 68000 CPU directly under DOS to run 
    68000 subroutines. Now you are able to access all of the ATARI peripheral 
    hardware registers. The following program excerpt calls a 68000 

    LEA BX, [ROUTINE]               ;Starting address of 68000 in ES:BX

    MOV DX, CS

    MOV ES, DX

    MOV DX, 4                       ;AT-SPEED code for CALL 68000

    PUSH 0E9H                       ;Start 68000


    CALL 0EF00H: OFA00H

    EVEN                            ;68000 code on even address!

    ROUTINE: DB 046H,079H,0,0FFH,082H,040H ; NOT $FF8240

             DB 04EH,075H           ; RTS

    This program inverts the monochrome screen.

    Note:   All 68000 registers have to be saved! Do not use the A0/A6 and D7 
            registers. The 68000 CPU is after start in supervisor mode. The 
            memory addresses are $40000 moved between the 80286 and the 68000 
            CPUs (eg. 80286 $2000:0000 == $60000 with the 68000). Note 
            absolute addressing the 68000 CPU!

17. AT-SPEED may use the hard drive/OMTI controller from the magazine C't 
    2/88, 12/88. In ATS_INST.PRG change the option under HDType to 'CT'.

18. With the DOS-program VIDMOD.COM you may change the actual graphics 

19. You can use AT_SPEED as a Desk Accessory program (AT_SPEED.ACC), only if 
    your ST has more than 1 MB memory free. Copy the (already installed) 
    AT_SPEED.PRG to your boot drive. Then rename AT_SPEED.PRG to AT_SPEED.ACC.

    After rebooting you may access this Desk Accessory with your mouse in 
    ATARI-mode. After clicking the AT-SPEED screen appears. If this does not 
    happen, the currently running GEM program is too large or has allocated 
    all available memory. With some programs (Tempus) it is possible to 
    decrease the memory consumption in the program itself.

    Note:   If you have changed the options with ATS_INST.PRG within the 
            AT-SPEED program as a desk accessory (AT_SPEED.ACC) you will have 
            to reboot the Atari computer in order to install the newly set 

20. The ATS_OPT.COM program increases the level of compatibility of AT-SPEED.

    Before you run a DOS application like MS-Quick C 2.0 or MS-CodeView 
    Debugger, you must run ATS_OPT.COM first.

21. To run Turbo Debugger change the NMI interceptor option to 'off' in the 
    TDINST program.

22. When you have upgraded your ST with PC-SPEED to AT-SPEED it is not 
    necessary to install your DOS on your hard drive again. Just replace the 
    PC-SPEED versions of MEGADISC.SYS and ADD_PART.SYS drivers with the newest 
    versions from your AT-SPEED masterdisk.

AT-SPEED Version 2.1 and up:


23. With the DOS command SPEEDFNT.COM you are able to load user defined fonts 
    under DOS in monochrome mode. With the option /T or /F (eg. SPEEDFNT/T) 
    you may exchange the thin or fat font respectively. Without parameters you 
    will be warned to do so. The program operates only with 4096 kB fonts.

    Note:   Common ST fonts do not possess PC specific graphic characters! 
            Program which use these block graphics will display differently!

            With a font editor you may add these graphic characters yourself.

24. With AT-SPEED you can run MS Windows 3.0 in Protected Mode (this is called 
    Standard Mode within Windows 3.0). But this is only possible with an ST 
    which has 2 MB or more available RAM!

    To install Windows 3.0 you should note:

    The files AUTOEXEC.BAT as well as CONFIG.SYS may not be altered with the 
    installation, so that SMARTDRV.SYS will not be installed.

    Ignore the automatical manipulation with 'CANCEL'. After the installation 

    you must add the line in your CONFIG.SYS file:


25. AT-SPEED supports the ATARI SLM laserprinter (DMA) now.

    Please read the notes in "LASER" text file on the AT-SPEED masterdisk.

26. Now a Microsoft-compatible mouse driver MOUSE.COM is supplied with 
    AT-SPEED and PC-SPEED. The files MOUSE.COM and MTEST.EXE are copyrighted 
    products from Naksha (Jersey) Limited.

    To install the mouse driver, add the following line into your AUTOEXEC.BAT 


    The option '/R3' will be explained below.

    You may also start the program by typing in the file name with or without 
    options from the command line.

    Note:   To use your mouse with AT-SPEED or PC-SPEED the option to use a 
            Microsoft-compatible mouse must have been set with the 
            installation program (see instruction manual).

    To show the options with Naksha's MOUSE.COM type in from the command line:


    Then the following options are shown:


            Naksha Mouse Driver V2.01

            (C) 1990 Naksha (Jersey) Limited


        Valid command line options are:

        /1      - Use Serial Port COM1.

        /2      - Use Serial Port COM2.

        /3      - Use Serial Port COM3. port 3E8, IRQ 4.

        /4      - Use Serial Port COM4. port 2E8, IRQ 3.

        /R0     - Set Ballistic Motion OFF.

        /Rn     - Set Ballistic Motion Rate (n = 1 - 9).

        /Np, i  - Use Hexadecimal I/O Port (p) and Decimal IRQ level (i).

        /P      - Use PS2 Compatible Pointing Device Port.

        OFF     - Release Mouse Driver and Tidy Up Memory.

        /? Help  also /H.

    To use this mouse driver with AT-SPEED/PC-SPEED you get good results with:

        MOUSE/R3 (Normal mouse response)

        ...             ...

        MOUSE/R9 (Fast mouse response)

    To switch the mouse driver off, type in from the command line:

        MOUSE OFF

27. To test the response of the mouse you may use MTEST.EXE. Also you can 
    check the response of the mouse buttons on your mouse. The above mentioned 
    mouse driver must have been installed before you can run MTEST, otherwise 
    you will get an error message. To test the mouse, type in from the command 



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