MultiDOS v1.0

(MultiDOS v1.0 Boot Screen)
    
Released:
   
  
  • September 1, 1981 (Model I)
      
  • January 31, 1982 (Model III)
    Versions:
       
      
  • Model I (Single-Density)
      
  • Model III
    Files:
       
      
  • 24 (each dated September 1, 1981)
    Beta Testers:
       
      
  • Gordon Monnier, Kim Watt, and David Welsh
    Innovations to BASIC:
       
      
  • p[n] to list a page of lines
      
  • C to CONTinue
      
  • R to RUN
      
  • CMD”V” to display scalar variables.
    Download Links:
       
      
  • Model I/MultiDOS v1.0
      
  • Model III/MultiDOS v1.0
    Background:
       Originally called ULTRA-II an ‘internal’ DOS as the first name assigned to what became MULTIDOS. ULTRA-II was NEVER sold or given out to beta test.
       Was released as a “new operating system by the author of ULTRADOS” and as the only DOS that can read (copy files from) all of the Model I and Model III operating systems. At the time “all” the Model I and Model III operating systems were: TRSDOS, NeWDOS, ULTRADOS, VTOS, DOSPLUS, DBLDOS, LDOS; and MULTIDOS.
       Model I version had a “fatal bug” in DOS0/SYS discovered by Kim Watt.
       The Model III version compared to the current released version of Model I except that the Model III version added DOS8 and DOS9 (DOS9 superseded HELP/CMD).
    v1.0 contained the following files:
         
    File Function


    BACKUP/CMD Duplicate diskette. Includes format
    BASIC/CMD High level interpreter
    BBASIC/CMD High level interpreter with BOSS
    CONVERT/CMD Modify DIR/SYS data
    address marks (DAMs) (Model III Only)
    COPY/CMD Duplicate a single file
    CREF/SYS Cross reference for BASIC including reserved words
    DIR/SYS Contains pertinent information about all files on this diskette
    DOS/SYS Resident
    DOS0/SYS Allocate
    DOS1/SYS Command
    DOS2/SYS Open
    DOS3/SYS Close
    DOS4/SYS Error library for DOS
    DOS5/SYS Debug
    DOS6/SYS Library 1
    DOS7/SYS Minidos
    DOS8/SYS Library 2 (Model III Only)
    DOS9/SYS Help for Library commands + (Model III Only)
    EA/CMD Editor Assembler (Enhancements only) (Model I Only)
    EDIT/SYS Global editor for BASIC
    ERROR/SYS Error library for BASIC
    FORMAT/CMD Format [blank] diskette
    GR/CMD Enables graphic characters in BASIC (Model I Only)
    RENUM/SYS Renumber for BASIC programs
    RS/CMD RAM scan
    SPOOL/CMD RAM SPOOLer
    VFU/CMD Versatile File Utility
    v1.0 contained the following library commands:
         
    APPEND    ATTRIB    AUTO    BLINK (M3)   
    BOOT    BREAK    BUILD    CLEAR   
    CLOCK    CLRDSK (M3)    CLS (M3)    CONFIG   
    DATE    DEAD    DEBUG    DEVICE   
    DIR    DO    DUMP    FORMS   
    FREE    HASH    HELP (M3)    KEYBRD   
    KILL    LIB    LINK    LIST   
    LOAD    PATCH (M3)    PRINT    PROT   
    RENAME    RESTOR (M3)    ROUTE    SETCOM (M3)   
    SKIP (M3)    TIME    TOPMEM    VERIFY   
    [MultiDOS 1.0 Ad]
    (Ad from 11/81 80 Micro)
    Click to Enlarge

    [MultiDOS 1.0 Ad]
    (Ad from 12/81 80 Micro)
    Click to Enlarge

    MultiDOS v1.1

    (MultiDOS v1.1 Boot Screen
    Yes, it still says v1.0)
        
    Released:
       
      
  • January 15, 1982
    Versions:
       
      
  • Model I (Single-Density)
    Files:
       
      
  • 26 files, 12 of which still bear the v1.0 file date of September 1, 1981
    Main Changes from v1.0:
       
      
  • Fixed DOS0/SYS
      
  • Added HELP/CMD
      
  • Added SKIP/CMD
    Beta Testers:
       
      
  • Initial enhancements incorporated from feedback provided by: Johnn Audritsh, Charlie Butler, Mike Friedman, Andy Gariepy, Gordon Monnier, Kim Watt, and Paul Weiner.
    Download Links:
       
      
  • Model I/MultiDOS v1.1
    (Note: Bears v1.0 Version Number)
    Background:
       Kim Watt discovered a “fatal bug” in DOS0/SYS, and since MULTIDOS v1.0 did not have a ZAP utility, Vernon had to send all his customers (about 10 at the time) a new diskette. Vernon did not advance the version number (so it still reads v1.0).
       What was the bug? Well, there are five ways to interface to a dual-sided disk drive: [1] treat it as a two drives, [2] treat it as an 80 track drive. i.e., if the cylinder is above 39, subtract 40 and select side 1 (this is the way MAXIDOS interfaced with dual-sided drives), [3] treat it as a two-volume diskette (original way DOSPLUS interfaced to dual-sided drives). MULTIDOS/ESOTERIC still supports this scheme, [4] treat it as a one-volume diskette (original way LDOS interfaced to dual-sided drives). MULTIDOS/ESOTERIC supports this scheme, and [5] treat it as a one-volume with overflow.
       The intent was to initially write to side zero and use side one only if side zero is full. This is the way DOS0/SYS was designed (incomplete at the time Vernon had to ship product). Vernon thought he had sufficiently ‘JRed’ around the ‘overflow code’ before Vernon shipped any – but he didn’t. Subsequently, Vernon abandoned the ‘overflow’ concept.
    Contained the following files:
         
    File Function


    BACKUP/CMD Duplicate diskette. Includes format
    BASIC/CMD High level interpreter
    BBASIC/CMD High level interpreter with BOSS
    COPY/CMD Duplicate a single file
    CREF/SYS Cross reference for BASIC including reserved words
    DIR/SYS Contains pertinent information about all files on this diskette
    DOS/SYS Resident
    DOS0/SYS Allocate
    DOS1/SYS Command
    DOS2/SYS Open
    DOS3/SYS Close
    DOS4/SYS Error library for DOS
    DOS5/SYS Debug
    DOS6/SYS Library
    DOS7/SYS Minidos
    EA/CMD Editor Assembler (Enhancements only)
    EDIT/SYS Global editor for BASIC
    ERROR/SYS Error library for BASIC
    FORMAT/CMD Format [blank] diskette
    GR/CMD Enables graphic characters in BASIC
    HELP/CMD Help for Library commands + others
    RENUM/SYS Renumber for BASIC programs
    RS/CMD RAM scan
    SKIP/CMD Enable reading a 40 track diskette (48 tpi) in 80 track drive (96 tpi)
    SPOOL/CMD RAM SPOOLer
    VFU/CMD Versatile File Utility
    Contained the following library commands (Same as v1.0):
         
    APPEND    ATTRIB    AUTO    BOOT    BREAK   
    BUILD    CLEAR    CLOCK    CONFIG    DATE   
    DEAD    DEBUG    DEVICE    DIR    DO   
    DUMP    FORMS    FREE    HASH    KEYBRD   
    KILL    LIB    LINK    LIST    LOAD   
    PRINT    PROT    RENAME    ROUTE    TIME   
    TOPMEM    VERIFY   
    [MultiDOS 1.0 Ad]
    (Ad from 3/82 80 Micro)
    Click to Enlarge

    MultiDOS v1.2

    (MultiDOS v1.2 Boot Screen)
        
    Released:
       
      
  • February 28, 1982
    Versions:
       
      
  • Model I (Single, Double, and Pseudo)
      
  • Model III
    Download Links:
       
      
  • Model I/MultiDOS v1.2S
      
  • Model I/MultiDOS v1.2D
      
  • Model I/MultiDOS v1.2P
      
  • Model III/MultiDOS v1.2
    Contained the following files: (Same as v1.1)
         
    File Function


    BACKUP/CMD Duplicate diskette. Includes format
    BASIC/CMD High level interpreter
    BBASIC/CMD High level interpreter with BOSS
    COPY/CMD Duplicate a single file
    CREF/SYS Cross reference for BASIC including reserved words
    DIR/SYS Contains pertinent information about all files on this diskette
    DOS/SYS Resident
    DOS0/SYS Allocate
    DOS1/SYS Command
    DOS2/SYS Open
    DOS3/SYS Close
    DOS4/SYS Error library for DOS
    DOS5/SYS Debug
    DOS6/SYS Library
    DOS7/SYS Minidos
    EA/CMD Editor Assembler (Enhancements only)
    EDIT/SYS Global editor for BASIC
    ERROR/SYS Error library for BASIC
    FORMAT/CMD Format [blank] diskette
    GR/CMD Enables graphic characters in BASIC
    HELP/CMD Help for Library commands + others
    RENUM/SYS Renumber for BASIC programs
    RS/CMD RAM scan
    SKIP/CMD Enable reading a 40 track diskette (48 tpi) in 80 track drive (96 tpi)
    SPOOL/CMD RAM SPOOLer
    VFU/CMD Versatile File Utility
    Contained the following library commands:
         
    APPEND    ATTRIB    AUTO    BOOT    BREAK    BUILD   
    CLEAR    CLOCK    CONFIG    DATE    DEAD    DEBUG   
    DEVICE    DIR    DO    DUMP    FORMS    FREE   
    HASH    KEYBRD    KILL    LIB    LINK    LIST   
    LOAD    PRINT    PROT    RENAME    ROUTE   
    TIME    TOPMEM    VERIFY   

    MultiDOS v1.3

    (MultiDOS v1.3 Boot Screen)
        
    Released:
       
      
  • April 23, 1982 (Model I)
      
  • April 29, 1982 (Model III)
    Versions:
       
      
  • Model I (Single, Double, and Pseudo)
      
  • Model III
    Main Changes from v1.2:
       
      
  • Added CONVERT/CMD
      
  • Added PATCH/CMD
    Banner:
       
      
  • Model I on Track 0, Sector 1
      
  • Model III on Track 0, Sector 4
    Download Links:
       
      
  • Model I/MultiDOS v1.3S
      
  • Model I/MultiDOS v1.3D
      
  • Model I/MultiDOS v1.3P
      
  • Model III/MultiDOS v1.3
    v1.3 contained the following files:
         
    File Function


    BACKUP/CMD Duplicate diskette. Includes format
    BASIC/CMD High level interpreter
    BBASIC/CMD High level interpreter w/BOSS
    CAT/CMD Directory of any TRS-80 normal diskette (Model III Only)
    CONVERT/CMD Modify DIR/SYS data address marks (DAMs)
    COPY/CMD Duplicate a single file
    CREF/SYS Cross reference for BASIC including reserved words
    DIR/SYS Contains pertinent information about all files on this diskette
    DOS/SYS Resident
    DOS0/SYS Allocate
    DOS1/SYS Command
    DOS2/SYS Open
    DOS3/SYS Close
    DOS4/SYS Error library for DOS
    DOS5/SYS Debug
    DOS6/SYS Library
    DOS7/SYS Minidos
    DOS8/SYS Library 2 (Model III Only)
    DOS9/SYS Help for Library commands + (Model III Only)
    EA/CMD Editor Assembler
    EA/DOC Mini “READ ME” file about EA/CMD (Model III Only)
    EDIT/SYS Global editor for BASIC
    ERROR/SYS Error library for BASIC
    FORMAT/CMD Format [blank] diskette
    GR/CMD Enables graphic characters in BASIC (Model I Only)
    HELP/CMD Help for Library commands + others (Model I Only)
    PATCH/CMD Patch a program/file (Model I Only)
    RENUM/SYS Renumber for BASIC programs
    RS/CMD RAM scan
    SKIP/CMD Enable reading a 40 track diskette (48 tpi) in 80 track drive (96 tpi) (Model I Only)
    SPOOL/CMD RAM SPOOLer
    TU/CMD Modified VFU to copy files FROM a MODEL III TRSDOS 1.3 diskette (Model III Only)
    VFU/CMD Versatile File Utility
    v1.3 contained the following library commands:
         
    APPEND    ATTRIB    AUTO    BLINK (M3 Only)    BOOT    BREAK   
    BUILD    CLEAR    CLOCK    CLRDSK (M3 Only)    CLS (M3 Only)    CONFIG   
    DATE    DEAD    DEBUG    DEVICE    DIR    DO   
    DUMP    FORMS    FREE    HASH    HELP (M3 Only)    KEYBRD   
    KILL    LIB    LINK    LIST    LOAD    PATCH (M3 Only)   
    PRINT    PROT    RENAME    RESTORE (M3 Only)    ROUTE    SETCOM (M3 Only)   
    SKIP (M3 Only)    TIME    TOPMEM    VERIFY   

    MultiDOS v1.4

    (MultiDOS v1.4 Boot Screen)
        
    Released:
       
      
  • April 30, 1982
    Versions:
       
      
  • Model I (Single, Double, and Pseudo)
    (There was no Model III version)
    Main Changes from v1.3:
       
      
  • HELP/CMD became DOS9/SYS
      
  • DOS6/SYS split into DOS6/SYS and DOS8/SYS
      
  • Added EA/DOC
      
  • Added CAT/CMD
    DOS Banner Location:
       
      
  • Single-density banner on track 16, sector 9
      
  • Double-density banner on track 1, sector 1
    Download Links:
       
      
  • Model I/MultiDOS v1.4S / v1.4D / v1.4P
    Background:
       Released to allow the Model I version 1.4 to catch up with the Model III version 1.3 in having 40 Library commands.
    Contained the following files:
         
    File Function


    BACKUP/CMD Duplicate diskette. Includes format
    BASIC/CMD High level interpreter
    BBASIC/CMD High level interpreter w/BOSS
    CAT/CMD Directory of any TRS-80 normal diskette
    COPY/CMD Duplicate a single file
    CREF/SYS Cross reference for BASIC including reserved words
    DIR/SYS Contains pertinent information about all files on this diskette
    DOS/SYS Resident
    DOS0/SYS Allocate
    DOS1/SYS Command
    DOS2/SYS Open
    DOS3/SYS Close
    DOS4/SYS Error library for DOS
    DOS5/SYS Debug
    DOS6/SYS Library 1
    DOS7/SYS Minidos
    DOS8/SYS Library 2
    DOS9/SYS Help for Library commands +
    EA/CMD Editor Assembler
    EA/DOC Mini “READ ME” file about EA/CMD
    EDIT/SYS Global editor for BASIC
    ERROR/SYS Error library for BASIC
    FORMAT/CMD Format [blank] diskette
    GR/CMD Enables graphic characters in BASIC
    RENUM/SYS Renumber for BASIC programs
    RS/CMD RAM scan
    SPOOL/CMD RAM SPOOLer
    TU/CMD Modified VFU to copy files FROM a MODEL III TRSDOS 1.3 diskette
    VFU/CMD Versatile File Utility
    Contained the following library commands:
         
    APPEND    ATTRIB    AUTO    BLINK    BOOT    BREAK    BUILD   
    CLEAR    CLOCK    CLRDSK    CLS    CONFIG    DATE    DDAM   
    DEAD    DEBUG    DEVICE    DIR    DO    DUMP    FORMS   
    FREE    HASH    HELP    KEYBRD    KILL    LIB    LINK   
    LIST    LOAD    PATCH    PRINT    PROT    RENAME    RESTORE   
    ROUTE    SKIP    TIME    TOPMEM    VERIFY   

    MultiDOS v1.5

    (MultiDOS v1.5 Boot Screen)
        
    Released:
        May 15, 1982
    Versions:
        Model I (Single, Double, Pseudo, and Kernel)
    Main Changes from v1.4:
       
      
  • Added DBLFIX/CMD
      
  • Added ZAP/CMD
      
  • Automatic recognition of Doublers
    DOS Banner Location:
       
      
  • Single-density banner on track 16, sector 9
      
  • Double-density banner on track 0, sector 2
    Download Links:
       
      
  • Model I/MultiDOS v1.5S / v1.5D / v1.5P
      
  • Model I/MultiDOS v1.5SK (Kernel for Computer Shack)
    Contained the following files:
         
    File Function


    BACKUP/CMD Duplicate diskette. Includes format
    BASIC/CMD High level interpreter
    BBASIC/CMD High level interpreter w/BOSS
    CAT/CMD Directory of any TRS-80 normal diskette
    COPY/CMD Duplicate a single file
    CREF/SYS Cross reference for BASIC including reserved words
    DBLFIX/CMD Easier read/writes to DBLDOS system and data diskettes
    DIR/SYS Contains pertinent information about all files on this diskette
    DOS/SYS Resident
    DOS0/SYS Allocate
    DOS1/SYS Command
    DOS2/SYS Open
    DOS3/SYS Close
    DOS4/SYS Error library for DOS
    DOS5/SYS Debug
    DOS6/SYS Library 1
    DOS7/SYS Minidos
    DOS8/SYS Library 2
    DOS9/SYS Help for Library commands +
    EA/CMD Editor Assembler
    EA/DOC Mini “READ ME” file about EA/CMD
    EDIT/SYS Global editor for BASIC
    ERROR/SYS Error library for BASIC
    FORMAT/CMD Format [blank] diskette
    GR/CMD Enables graphic characters in BASIC
    RENUM/SYS Renumber for BASIC programs
    RS/CMD RAM scan
    SPOOL/CMD RAM SPOOLer
    TU/CMD Modified VFU to copy files FROM a MODEL III TRSDOS 1.3 diskette
    VFU/CMD Versatile File Utility
    ZAP/CMD Disk/RAM inspect/modify utility (05/22/82)
    Contained the following library commands:
         
    APPEND    ATTRIB    AUTO    BLINK    BOOT   
    BREAK    BUILD    CLEAR    CLOCK    CLRDSK   
    CLS    CONFIG    DATE    DDAM    DEAD   
    DEBUG    DEVICE    DIR    DO    DUMP   
    FORMS    FREE    HASH    HELP    KEYBRD   
    KILL    LIB    LINK    LIST    LOAD   
    PATCH    PRINT    PROT    RENAME    RESTORE   
    ROUTE    SKIP    TIME    TOPMEM    VERIFY   
    [MultiDOS 1.0 Ad]
    (Ad from 5/82 80 Micro)
    Click to Enlarge

    [MultiDOS 1.0 Ad]
    (Ad from 8/82 80 Micro)
    Click to Enlarge

    MultiDOS v1.6

    (MultiDOS v1.6S Boot Screen)


    (MultiDOS v1.6aS Boot Screen)
        
    Released:
       
      
  • September 25, 1982 (Model I)
      
  • November 8, 1982 (Model III)
    Versions:
       
      
  • Model I (Single, Double, and Pseudo)
      
  • Model III
    Main Changes from v1.5:
       
      
  • Format pattern selectable
      
  • Added DDT/CMD
      
  • Added TAPE/CMD
      
  • Added automatic configuration for any doubler installed
      
  • Merged TU/CMD into VFU/CMD
      
  • v1.6b contained a minor change to BASIC/CMD
      
  • v1.6.? updated CAT/CMD
      
  • v1.6.? updated BASIC/CMD
    DOS Banner Location:
       
      
  • Model I banner track 0, sector 6
      
  • Model III banner track 0, sector 4
    Download Links:
       
      
  • Model I/MultiDOS v1.6S / v1.6D / v1.6P
      
  • Model I/MultiDOS v1.6aS / v1.6aD / v1.6aP
      
  • Model I/MultiDOS v1.6b
      
  • Model I/MultiDOS v1.6c
      
  • Model I/MultiDOS v1.6d
      
  • Model III/MultiDOS v1.6 / v1.6a / v1.6b / v1.6c / v1.6d
    Background:
       Vernon’s records are spotty on this version. It was the longest release, but Vernon’s life was under a bit of chaos in 1983/1984 with [1] Paul McLeod quitting leaving Vernon alone to manage ZEUS and MAX-80 MULTIDOS, [2] Radio Shack announcing the Model 4 with TRSDOS 6 (LDOS), and [3] Vernon transferring from publisher to author..
    v1.6 contained the following files:
         
    File Function


    BACKUP/CMD Duplicate diskette. Includes format
    BASIC/CMD High level interpreter
    BBASIC/CMD High level interpreter w/BOSS
    CAT/CMD Directory of any TRS-80 normal diskette
    CONVERT/CMD Modify DIR/SYS data address marks (DAMs) (Model III Only)
    COPY/CMD Duplicate a single file
    CREF/SYS Cross reference for BASIC including reserved words
    DBLFIX/CMD Make easier read/writes to DBLDOS system and data diskettes (Model I Only)
    DDT/CMD Diskette drive rotation speed display (11/07/82)
    DIR/SYS Contains pertinent information about all files on this diskette
    DOS/SYS Resident
    DOS0/SYS Allocate
    DOS1/SYS Command
    DOS2/SYS Open
    DOS3/SYS Close
    DOS4/SYS Error library for DOS
    DOS5/SYS Debug
    DOS6/SYS Library 1
    DOS7/SYS Minidos
    DOS8/SYS Library 2
    DOS9/SYS Help for Library commands +
    EDIT/SYS Global editor for BASIC
    ERROR/SYS Error library for BASIC
    FORMAT/CMD Format [blank] diskette
    GR/CMD Enables graphic characters in BASIC (Model I Only)
    MEM/CMD RAM memory test (01/28/83)
    PACK/SYS BASIC program packer (Model III Only)
    RENUM/SYS Renumber for BASIC programs
    RS/CMD RAM scan
    SPOOL/CMD RAM SPOOLer
    TAPE/CMD Faster Cassette Utility
    VFU/CMD Versatile File Utility
    ZAP/CMD Disk/RAM inspect/modify utility
    Contained the following library commands:
         
    APPEND    ATTRIB    AUTO    BLINK    BOOT   
    BREAK    BUILD    CLEAR    CLOCK    CLRDSK   
    CLS    CONFIG    DATE    DDAM (M1)    DEAD   
    DEBUG    DEVICE    DIR    DO    DUMP   
    FORMS    FREE    HASH    HELP    KEYBRD   
    KILL    LIB    LINK    LIST    LOAD   
    PATCH    PRINT    PROT    RENAME    RESTORE   
    ROUTE    SETCOM (M3)    SKIP    TIME    TOPMEM   
    VERIFY   
    [MultiDOS Ad]
    (Ad from 12/82 80 Micro)
    Click to Enlarge

    [MultiDOS Ad]
    (Ad from 01/83 80 Micro)
    Click to Enlarge
    [MultiDOS Ad]
    (Ad from 03/83 80 Micro)
    Click to Enlarge
    [MultiDOS Ad]
    (Ad from 04/83 80 Micro)
    Click to Enlarge
    [MultiDOS Ad]
    (Ad from 08/83 80 Micro)
    Click to Enlarge

    MultiDOS v1.7

    (MultiDOS v1.7 Boot Screen)
        
    Released:
       
      
  • December 6, 1983 (v1.7 for MAX-80)
      
  • January 25, 1984 (v1.7b for MAX-80)
      
  • May 1, 1984 (v1.7c for MAX-80)
      
  • September 10, 1984 (v1.7d for MAX-80)
      
  • September 15, 1984 (v1.7 for Model I)
      
  • January 9, 1985 (Model 4)
      
  • January 15, 1985 (v1.7a for Model 4)
      
  • January 18, 1985 (v1.7e for MAX-80)
      
  • September 15, 1984 (v1.7 for Model III)
    Versions:
       
      
  • Model I (Single, Double, and Pseudo)
       Single-Density was a 2-Disk Set
      
  • Model III
      
  • Model 4
      
  • MAX-80
    Main Changes from v1.6:
       
      
  • Mainly merged DIR/SYS and DOS/SYS from v1.6 into INDEX
      
  • Added drive control table for Model I and Model III.
      
  • Removed FORMS code from resident DOS disappointing many customers.
      
  • First version for the Model 4
      
  • Model 4 v1.7a added PRT/CMD and SETCOM/CMD
      
  • First version for the MAX-80
      
  • MAX-80 version was rushed to ship, so 7 programs were not converted. MAX-80 v1.7b added CAT/CMD, DBLFIX/CMD, DDT/CMD, MEM/CMD, RS/CMD, VFU/CMD, and ZAP/CMD
      
  • MAX-80 v1.7c split ‘Index’ into RESIDENT/SYS and DIR/SYS
      
  • MAX-80 v1.7d added TA/CMD
      
  • MAX-80 v1.7e added CDIR/CMD, FMAP/CMD, LO/CMD, MEMDISK/CMD, PRT/CMD, and SETCOM/CMD. Renamed RESIDENT/SYS to SYSRES/SYS and built in type-ahead
    DOS Banner Location:
       
      
  • v1.7D and v1.7 banner appeared on track 0, sector 2
      
  • Model 4 banner appeared on track 0, sector 2
      
  • MAX-80 v1.7 and v1.7b banners appear on track 0, sector 13
      
  • MAX-80 v1.7c and v1.7d banners appear on track 0, sector 12
      
  • MAX-80 v1.7e banner appears on track 0, sector 2
    Download Links:
       
      
  • Model I/MultiDOS v1.7S / v1.7D / v1.7P
      
  • Model III/MultiDOS v1.7
      
  • Model 4/MultiDOS v1.7
      
  • MAX-80/MultiDOS v1.7
    v1.7 for the Model I/III/4 contained the following files:
         
    File           Function


    Allocate/DOL Allocate
    BACKUP/CMD Duplicate diskette. Includes format
    BASIC/CMD High level interpreter
    BASIC/SEG SWAP area replacement overlay (Model 4 Only)
    BBASIC/CMD High level interpreter with BOSS (Model III Only)
    CAT/CMD Directory of any TRS-80 normal diskette
    CDIR/CMD Clear removed file’s directory entry
    Close/DOL Close
    Command/DOL Command
    CONVERT/CMD Modify DIR/SYS data address marks (DAMs)
    COPY/CMD Duplicate a single file
    CREF/BOL Cross reference for BASIC including reserved words
    DBLFIX/CMD Make easier read/writes to DBLDOS system and data diskettes
    DDT/CMD Diskette drive rotation speed display
    Debug/DOL Debug
    DIR/SYS Contains pertinent information about all files on this diskette
    EDIT/BOL Global editor for BASIC
    ERROR/BOL Error library for BASIC
    Error/DOL Error library for DOS
    FMAP/CMD Free map of disk usage
    FORMAT/CMD Format [blank] diskette
    GR/CMD Enables graphic characters in BASIC (Model I Only)
    HELP/CMD Help for Library commands + (Model III Only)
    Help/EXT Help for Library commands + (Model 4 Only)
    Library1/EXT Library 1
    Library2/EXT Library 2
    LO/CMD Load Offsetter
    MEM/CMD RAM memory test
    MEMDISK/CMD Memory disk (Model 4 Only)
    Minidos/DOL Minidos
    Open/DOL Open
    PACK/BOL BASIC program packer
    PRT/CMD FORMS and print filter (Model III Only)
    RENUM/BOL Renumber for BASIC programs
    RESIDENT/SYS Resident (Model III Only)
    RESOLVE/BOL Label resolver (i.e., convert to appropriate line numbers) (Model MAX-80 and Model 4 Only)
    RS/CMD RAM scan
    SORT/BOL CMD”Q” overlay (MAX-80 and Model 4 Only)
    SPOOL/CMD RAM SPOOLer (Model III Only)
    SYSRES/SYS Resident (Model 4 Only)
    TA/CMD Type-Ahead (Model III Only)
    TAPE/CMD Faster Cassette Utility (Model III Only)
    UNPACK/BOL Unpacker for BASIC programs
    UTIL/BOL BASIC overlay for F, M, N, CMD”C”, CMD”V”, CMD”X”
    VFU/CMD Versatile File Utility
    ZAP/CMD Disk/RAM inspect/modify utility
    v1.7a for the Model 4 contained the following ADDITIONAL files:
         
    SETCOM/CMD RS-232-C configuration
    PRT/CMD Printer filter
    v1.7 for the MAX-80 contained the following files:
         
    File           Function


    ALLOCATE/DOL Allocate
    BACKUP/CMD Duplicate diskette. Includes format
    BAS1/SEG SWAP area replacement overlay
    BAS2/SEG SWAP area replacement overlay
    BASIC/CMD High level interpreter
    CONVERT/CMD Modify DIR/SYS data address marks (DAMs)
    COPY/CMD Duplicate a single file
    CREF/BOL Cross reference for BASIC including reserved words
    CLOSE/DOL Close
    COMMAND/DOL Command
    DEBUG/DOL Debug
    EDIT/BOL Global editor for BASIC
    ERROR/BOL Error library for BASIC
    ERROR/DOL Error library for DOS
    FORMAT/CMD Format [blank] diskette
    HELP/EXT Help for Library commands +
    INDEX/ Combined DOS/SYS and DIR/SYS
    LIBRARY1/EXT Library 1
    LIBRARY2/EXT Library 2
    MINIDOS/DOL Minidos
    OPEN/DOL Open
    PACK/BOL BASIC program packer
    RENUM/BOL Renumber for BASIC programs
    RESOLVE/BOL Label resolver (i.e., convert to appropriate line numbers)
    SORT/BOL CMD”Q”overlay
    UNPACK/BOL Unpacker for BASIC programs (sorely needed after executing PACK)
    UTIL/BOL new BASIC overlay for F, M, N, CMD”C”, CMD”V”, CMD”X”
    v1.7b for the MAX-80 contained the following ADDITIONAL files from v1.7:
         
    CAT/CMD Directory of any TRS-80 normal diskette
    DBLFIX/CMD Make easier read/writes to DBLDOS system and data diskettes
    DDT/CMD Diskette drive rotation speed display
    MEM/CMD RAM memory test
    RS/CMD RAM scan
    VFU/CMD Versatile File Utility
    ZAP/CMD Disk/RAM inspect/modify utility
    v1.7c for the MAX-80 contained the following ADDITIONAL/DIFFERENT files from v1.7b:
         
    New Files:
    DIR/SYS Contains pertinent information about all files on this diskette
    RESIDENT/SYS Resident
    Removed Files:
    Index Combined DOS/SYS and DIR/SYS
    v1.7d for the MAX-80 contained the following ADDITIONAL files from v1.7c:
         
    TA/CMD Type-ahead
    v1.7e for the MAX-80 contained the following ADDITIONAL/DIFFERENT files from v1.7d:
         
    New Files:
    CDIR/CMD Clear removed file’s directory entry
    FMAP/CMD Free map of disk usage
    LO/CMD Load Ofsetter
    MEMDISK/CMD Memory disk
    PRT/CMD Printer filter
    RESOLVE/BOL Label resolver (i.e., convert to appropriate line numbers)
    RS/CMD RAM scan
    SETCOM/CMD RS-232-C configuration
    SYSRES/SYS Resident
    Removed Files:
    TA/CMD Type-ahead
    RESIDENT/SYS was replaced by SYSRES/SYS (New file)
    Model III version contained the following 39 library commands:
         
    APPEND    ATTRIB    AUTO    BLINK    BOOT    BUILD   
    CLEAR    CLOCK    CLRDSK    CLS    CONFIG    DATE   
    DEAD    DEBUG    DEVICE    DIR    DO    DUMP   
    FORMS    FREE    KEYBRD    KILL    LIB    LINK   
    LIST    LOAD    PATCH    PRINT    PROT    RENAME   
    RESET    RESTORE    ROUTE    SCREEN    SETCOM    SKIP   
    TIME    TOPMEM    VERIFY   
    All Model 4 and MAX-80 versions contained the following 40 library commands:
         
    APPEND    ATTRIB    AUTO    BLINK    BOOT    BUILD   
    CLEAR    CLOCK    CLRDSK    CLS    CONFIG    DATE   
    DEBUG    DEVICE    DIR    DO    DUMP    FORMS   
    FREE    HELP    KEYBRD    KILL    LIB    LINK   
    LIST    LOAD    PATCH    PRINT    PROT    RENAME   
    RESET    RESTORE    ROUTE    SCREEN    SKIP    TIME   
    TOPMEM    VERIFY    V64    V80   
    v1.7 for the Model I Contained the following files:
         
    File           Function


    ALLOCATE/DOL Allocate
    BACKUP/CMD Duplicate diskette. Includes format
    BASIC/CMD High level interpreter
    BBASIC/CMD High level interpreter with BOSS
    CAT/CMD Directory of any TRS-80 normal diskette
    COPY/CMD Duplicate a single file
    CREF/BOL Cross reference for BASIC including reserved words
    Close/DOL Close
    Command/DOL Command
    DBLFIX/CMD Make easier read/writes to DBLDOS system and data diskettes
    DDT/CMD Diskette drive rotation speed display
    DIR/SYS Contains pertinent information about all files on this diskette
    Debug/DOL Debug
    EDIT/BOL Global editor for BASIC
    ERROR/BOL Error library for BASIC
    Error/DOL Error library for DOS
    FORMAT/CMD Format [blank] diskette
    GR/CMD Enables graphic characters in BASIC
    HELP/CMD Help for Library commands +
    Library1/EXT Library 1
    Library2/EXT Library 2
    MEM/CMD RAM memory test
    Minidos/DOL Minidos
    Open/DOL Open
    PACK/BOL BASIC program packer
    PRT/CMD FORMS and print filter
    RENUM/BOL Renumber for BASIC programs
    RESIDENT/SYS Resident
    RS/CMD RAM scan
    SPOOL/CMD RAM SPOOLer
    TAPE/CMD Faster Cassette Utility
    UNPACK/BOL Unpacker for BASIC programs
    UTIL/BOL BASIC overlay for F, M, N, CMD”C”, CMD”V”, CMD”X”
    VFU/CMD Versatile File Utility
    ZAP/CMD Disk/RAM inspect/modify utility
    Contained the following 39 library commands:
         
    APPEND    ATTRIB    AUTO    BLINK    BOOT    BUILD   
    CLEAR    CLOCK    CLRDSK    CLS    CONFIG    DATE   
    DDAM    DEAD    DEBUG    DEVICE    DIR    DO   
    DUMP    FORMS    FREE    KEYBRD    KILL    LIB   
    LINK    LIST    LOAD    PATCH    PRINT    PROT   
    RENAME    RESET    RESTORE    ROUTE    SCREEN    SKIP   
    TIME    TOPMEM    VERIFY   

    MultiDOS v1.71

    (MultiDOS v1.71 Boot Screen)
       
    Released:
        February 11, 1985
    March 4, 1985 (Model 4)
    Versions:
       
      
  • Model I (Single, Double, and Pseudo)
      [Single-Density was a 2-Disk Set]
      
  • Model III
      
  • Model 4
      
  • MAX-80
    Main Changes:
       
      
  • Access NEWDOS/80 diskettes with GPL > 2
      
  • Added CDIR/CMD
      
  • Added FMAP/CMD
      
  • Added LO/CMD
      
  • Added MEMDISK/CMD
      
  • Added PRT/CMD
      
  • Added SETCOM/CMD
    Download Links:
       
      
  • Model I/MultiDOS v1.71S / v1.71D / v1.71P
      
  • Model III/MultiDOS v1.71
      
  • Model 4/MultiDOS v1.71
      
  • MAX-80/MultiDOS v1.71
    Model III version contained the following files:
         
    File           Function


    Allocate/DOL Allocate
    BACKUP/CMD Duplicate diskette. Includes format
    BASIC/CMD High level interpreter
    BBASIC/CMD High level interpreter with BOSS
    CAT/CMD Directory of any TRS-80 normal diskette
    CDIR/CMD Clear removed file’s directory entry
    CONVERT/CMD Modify DIR/SYS data address marks (DAMs) (Model III, MAX-80, and Model 4)
    COPY/CMD Duplicate a single file
    CREF/BOL Cross reference for BASIC including reserved words
    Close/DOL Close
    Command/DOL Command
    DBLFIX/CMD Make easier read/writes to DBLDOS system and data diskettes
    DDT/CMD Diskette drive rotation speed display
    DIR/SYS Contains pertinent information about all files on this diskette
    Debug/DOL Debug
    EDIT/BOL Global editor for BASIC
    ERROR/BOL Error library for BASIC
    Error/DOL Error library for DOS
    FMAP/CMD Free map of disk usage
    FORMAT/CMD Format [blank] diskette
    GR/CMD Enables graphic characters in BASIC
    HELP/CMD Help for Library commands +
    LO/CMD Load Ofsetter
    Library1/EXT Library 1
    Library2/EXT Library 2
    MEM/CMD RAM memory test
    MEMDISK/CMD Memory disk
    Minidos/DOL Minidos
    Open/DOL Open
    PACK/BOL BASIC program packer
    PRT/CMD FORMS and print filter
    RENUM/BOL Renumber for BASIC programs
    RS/CMD RAM scan
    SPOOL/CMD RAM SPOOLer
    SYSRES/SYS Resident
    TAPE/CMD Faster Cassette Utility
    UNPACK/BOL Unpacker for BASIC programs
    UTIL/BOL BASIC overlay for F, M, N, CMD”C”, CMD”V”, CMD”X”
    VFU/CMD Versatile File Utility
    ZAP/CMD Disk/RAM inspect/modify utility
    Model III version contained the following 39 library commands:
         
    APPEND    ATTRIB    AUTO    BLINK    BOOT    BUILD   
    CLEAR    CLOCK    CLRDSK    CLS    CONFIG    DATE   
    DEAD    DEBUG    DEVICE    DIR    DO    DUMP   
    FORMS    FREE    KEYBRD    KILL    LIB    LINK   
    LIST    LOAD    PATCH    PRINT    PROT    RENAME   
    RESET    RESTORE    ROUTE    SCREEN    SETCOM    SKIP   
    TIME    TOPMEM    VERIFY   

    MultiDOS v1.72
       
       
      
  • Model III
      
  • MAX-80

    Navigation
    … skip to Part 4: MultiDOS v2.0 – 5.1.1
    … skip to Part 5: Z’DOS and ESOTERIC
    … go back to Part 1: Main MultiDOS/UltraDOS/Z’DOS/ESOTERIC Page
    … go back to Part 2: ULTRADOS Page