Introduction 1.6.4 Programs Running under Panos All the languages have built-in features for handling the keyboard, display and files; sometimes as part of a library. Additionally, a library of operating system procedures (similar to system calls) is accessible from most languages. These are described in the Panos Programmer's Reference Manual. They include facilities for input, output and file handling, setting and reading the internal clock and handling asynchronous events (interrupts). In addition, functions are available which simulate the BBC OSByte, OSWord and OSFile functions. Examples -> copy files -to fileb -> edit filec, filed, filee -> show time -> logon Matters -> cat nfs:
-> star free -> star fx 238,128 1.7 Filing systems The following systems are available to the I/O processor: DFS: This uses floppy discs with single density format. A major purpose of the DFS is to maintain compatibility with earlier systems. Distribution software for the ACW and Co-Processor is supplied in this format (except for the ADFS utilities disc, which is supplied in ADFS format). ADFS: The Advanced Disc Filing System. For use with Winchester and floppy discs formatted using Modified Frequency Modulation (MFM) format which provides double density storage. NFS: The Network Filing System.
This enables a number of stations to share a filing system operated by a special station (the 'file server'), using the Econet network. ADFS, NFS and DFS are supported by Panos. The following additional filing systems are also available, but normally only via star commands: *IEEE The IEEE488 filing system •TAPE or The 1200 Baud cassette filing system *TAPE12 *TAPE3 The 300 Baud cassette filing system *TELESOFT The Teletext filing system *ROM The sideways ROM cartridge system The various filing systems are described in more detail in the I/O Processor Guide Acorn part number 0410,004.
A list of I/O processor ROMs installed in a particular ACW may be obtained by typing *ROMS RTN For each of the filing systems, 'help' information – in the form of a command list with syntax – may be elicited by using the filing system name, as in the following examples: ACW SERVICE MANUAL Issue 1 9