[ DOCS ] : Prologic DOS Kernal Documentation

Prologic DOS and Prologic DOS Classic (version 1.6) was a quick loader that included a module on the 1541 floppy disk drive and a module for the user port or expansion port of the C64. The whole thing was connected via a parallel cable and supposedly ensured that an acceleration of 200 times the normal speed could be achieved. It was distributed by Jann Datentechnik, later by the company REX Datentechnik. The quick loader was written by Oliver T. Dietz.

Table of contents

Features

• Acceleration
  • LOAD up to 65 times faster (measured: 28 times)[1]
  • SAVE without VERIFY up to 65 times faster (measured: 14 times)
  • VERIFY up to 30 times faster
  • File access (REL, SEQ) approx. 30 to 15 times faster
• Floppy disk monitor
• Function key assignment
• BASIC and simplified DOS command extension
  • UNNEW function
  • Corrected LIST
  • Correct SAVE and REPLACE
• RS232 (V.24) support
• Built-in reset button with expandable reset routine
• Expansion port looped through
• No rattling or hitting of the Read/write head during formatting and in the event of errors
• Hardware and software can be switched to the original operating system without crashing
• Support for Centronics printers via device address 4
• 35 (664 blocks) or 40 tracks (749 blocks) can be used

Versions

• ProLogic-DOS (from 1985)
• ProLogic-DOS Classic also for 1541C (version 1.6, from 1987)
• ProLogic-DOS LC (low cost version) for operation on the user port

JANN Data Technology

• Prologic-DOS Classic complete with installation and operating instructions, utility diskette for 286 DM
• Module for each additional drive 186 DM
• Version for the C128 with switching to C64 mode 39 DM surcharge
• Prologic-DOS with IEEE-488 (IEC bus) for SFD-1001 or hard drives without Centronics interface 138 DM
• Prologic-DOS-L (Low Cost) for user port 186 DM
• Prologic-Nibbler copy program 59 DM
• Update to version 1.6: 40 DM

REX data technology

• REX9610 on the user port for 79 DM (more compatible than the expansion port version!)
• REX9611 module for the 2nd (each additional) floppy
• REX9612 on the expansion port for 129 DM

Function key assignment

• F1 Displays a directory without program loss
• F2 SYS 4096*
• F3 LIST
• F4 OLD (UNNEW function after NEW or software-side RESET)
• F5 RUN
• F6 OFF (2-stage shutdown of Prologic-DOS support)
• F7 LOAD loads first program on diskette or the selected program from a directory
• F8 DEV#8/9 Changes the current diskette drive

LOAD functions

• LOAD “name”,8,0 loads a file to the BASIC start
• LOAD “name”,8,0,address loads to the decimal start address
• LOAD “name”,8,1 (normal without parameter specification) loads to the normal program address
• LOAD “name”,8,2 loads with the slower compatibility mode

Hotkeys

• CTRL +arrow up hard copy of the text screen
• CTRL +DEL deletes the line Cursor
• CTRL +CRSR right moves the cursor 8 characters to the right
• CTRL +CRSR down moves the cursor to the bottom left corner of the screen
• CTRL +Reset button when switching on bypasses starting a plug-in module

Diskette commands

Similar to DOS Wedge 5.1:

• @* Output of the error channel
• @$ Directory Calls the directory
• @N:Name, ID New or formats a diskette
• @C:New=Old Copy or copies a file under a new file name
• @R:New name = Old name Rename or renames a File
• @S:Name Scratch or delete the specified file
• @I Initialize diskette
• @V Validate diskette
• @XL:Name Protect file from being overwritten (write protection)
• @XU:Name Remove the write protection of a protected file
• @XR+/- Activate/deactivate floppy RAM
• @XF+/- Activate/deactivate fast data transfer
• @XV+/- Activate/deactivate VERIFY after write access
• @XE+/- Activate/deactivate VERIFY after error query
• @XD+/- Activate/deactivate 35/40 tracks
• @XS Display extended floppy status: 04,R+,F+,V+,Eü,D+,00,00 (default values)