Laser 310/VZ300 DOS 1.2

1st edition by Gerhard Wolf, VogelBook Publishing, 1985

Note

Download Book translated to English (PDF)

Laser DOS for Laser 110, 210, 310 and VZ200 [EN]

Fully disassembled code of DOS ROM is available on GitHub

Table of Contents:

• 0. Introduction
• 1. The LASER 110, 210 and 310 Disk System
  • Components
  • Basics of floppy disk storage
    • The Drive
  • The floppy disk
    • Construction
    • Insert the disk
    • A floppy disk has two sides
    • Handling of floppy disks
    • Record structure
  • The Floppy Disk Controller
  • Installation of the floppy disk system
  • System initialization
  • Technical specifications
• 2. DOS Operations
  • Structure of the LASER-DOS
  • Use of DOS commands
    • Commands - Syntax
    • File Types and Specifications
  • Commands - Overview
    • General Instructions
    • File Management Features
    • Storage and processing of data
• 3. The individual DOS commands
  • General Instructions
    • INIT - Prepare a floppy disk
    • DRIVE - Drive selection
    • DCOPY - Copy disk
    • STATUS - Display the diskette status
  • File management functions
    • DIR - Display of the table of contents
    • SAVE - Saving a BASIC program to floppy disk
    • LOAD - Loading a BASIC program from diskette
    • RUN - Load and start a BASIC program
    • BSAVE - Saving a machine program on diskette
    • BLOAD - Loading a machine program from diskette
    • BRUN - Loading and starting a machine program
    • REN - Renaming files and programs
    • DCOPY - Copy a program
    • ERA - Delete a file or program on the floppy disk
  • Storage and processing of data
    • File organization and access
      • Example of sequential output:
      • Example of sequential input:
      • Updating a file
    • OPEN - Open a file.
    • PR# - Writing records to a file
    • IN# - Reading records from a file
    • CLOSE - Closing a data file
• 4. Error Messages
• 5. Programming tips
• 6. Application example
  • Operation of the program
  • The program Structure
  • Program listing
• 7. Technical Information
  • Structure and organization of the diskette
    • Structure of the diskette after initialization
    • Table of Contents
    • The sector administration
    • Storage of programs and files
  • Memory resident workspaces
    • DOS vectors
    • File Control Blocks (FCB)
    • Input/Output Buffer
• 8. Communication between the DOS and the Floppy Disk Controller
• 9. The most important DOS routines and their application іп machine programs.
  • Call and Overview
  • DOS Vector functions
    • PWRON - Turn on a drive
    • PWROFF - Turn off a drive
    • ERROR - Error handling
    • RDMAP - Load allocation Map
    • CLEAR - Deleting a sector on the floppy disk
    • SVMAP - Save allocation Map to disk.
    • INIT - Initialize disk.
    • CSI - Interpret command parameters.
    • HEX - Conversion ASCII to HEX.
    • IDAM - Look for the address mark on the diskette
    • CREATE - Write an entry in the table of contents
    • MAP - Detect a free sector on the disk
    • SEARCH - Find file in table of contents
    • FIND - Look for a free entry in table of contents
    • WRITE - Write sector to disk
    • READ - Read sector from disk
    • DLY - n milliseconds delay
    • STPIN - Advance read/write head n tracks
    • STPOUT - Reset read/write head n tracks
    • LOAD - Loading a program or memory area
    • SAVE - Saving a program or memory area to floppy disk
  • DOS Extra functions
    • DRIVE - Selecting a drive
    • WPROCT - Check write protection