Number Name
1 Peek Read destination machine's memory
2 Poke Write destination machine's memory (!)
3 JSR Calls a subroutine
4 UserProcedureCall Generate Event 8
5 OSProcedureCall Generate Event 16
6 Halt Halt the destination machine (BBC & Master only)
7 Continue (BBC & Master only)
8 MachinePeek Returns a number identifying the machine type
9 GetRegisters Returns R0-R15, R13_irq, R14_irq, R13_svc, R14_svc (80 bytes)
Econet JSR
This will cause a JSR or BL on the destination machine. Entry conditions:
=> R1 = argument buffer
R2 = address of the code entered
R3 = sending station
R4 = sending net
<= R0-R4 may be corrupted
If the address to call is -1 then the address called is the argument buffer - this allows ARM code to be sent. (Erm, security risk?)
Econet Machine Peek
Bits Meaning
0-15 Machine type:
&0000 Reserved
&0001 BBC (MOS 1 or 2)
&0002 Atom
&0003 System 3 or 4
&0004 System 5
&0005 Master 128 (MOS 3)
&0006 Electron (MOS 0)
&0007 Archimedes
&0008 Reserved
&0009 Acorn Communicator
&000A Master 128 Econet Terminal (MOS 4)
&000B Acorn Filestore
&000C Master 128 Compact (MOS 5)
&000D Acorn Ecolink card for Personal Computers
&000E Acorn Unix box
&000F Risc PC architecture
&0010 Reserved
&0011 A9
&FFF8 SJ Research GP server
&FFF9 SJ Research 80386 UNIX
&FFFA SCSI interface
&FFFB SJ Research IBM PC Econet interface
&FFFC Nascom 2
&FFFD Reseach Machines 480Z
&FFFE SJ Research File Server
&FFFF Z80 CP/M
16-23 Software version number (BCD)
24-31 Software release number (BCD)
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