Chapter 1 1.6.1 Single processor mode In this mode, the I/O processor operates independently of the 32016 processor, and all the facilities described in the BBC B+ Microcomputer System User Guide or I/O Processor Guide are available. Examples >*FREE >*CAT >RUN A list of * commands is given in the appendix. 1.6.2 Dual Processor Mode With the TUBE switched on the 32016 processor is active and PANDORA running. Pandora Commands The * commands described in the BBC Microcomputer user guides are handed to the I/O processor by PANDORA for execution by the I/O processor. execution.
Examples *FREE *CAT *DIR :0 *PANOS 32000 BASIC 32000 BASIC is BASIC version IV which is based on an earlier version, BASIC I, the language supplied with BBC Microcomputers. Unlike most of the systems software provided with the equipment, 32000 BASIC runs directly from Pandora, the firmware kernel, instead of from Panos, the disc-based operating system for the Cambridge Series computers. 32000 BASIC contains several improvements on BASIC I: a built-in screen editor and faster execution ( especially in real arithmetic), new statements are provided, and much greater memory is available.
For some users, the most significant difference between the two versions of BASIC will be the fact that 6502 assembly language cannot be incorporated into 32000 BASIC programs. However, object files prepared with the 32000 Assembler may be loaded and called by BBC BASIC programs, and useful MOS routines may still be accessed with the CALL statement. The enhancements and differences between the implementations are detailed in the BBC BASIC Reference Manual supplied. Examples >*FREE >*CAT >RUN 1.6.3 Panos Various Panos utilities are available for handling filing systems and other functions. In addition, the star utility can be used to transmit commands to the I/O processor's MOS.
For details of how to use PANOS and the utilites that run under PANOS refer to Panos Guide to Operations Acorn part number 0410,001. 8 ACW SERVICE MANUAL Issue 1