0..3 Error number
4..255 Error string, zero terminated.
Bits in Error number
0-7 Basic error number
8-23 'Owner'/Generator of error
24-29 Reserved. Must be 0
30 Defined to be 0
31 Error is serious (hardware). Owner is then
0 Machine
1 Co-Processor
2 Floating point
3 Econet
Note: Even X SWIs are allowed to generate (rather than return) serious errors.
Error generators
&000 - &0FF Operating system - BBC compatible error
&100 - &11F OS_Module errors
&120 - &13F OS_ReadVarVal/OS_SetVarVal errors
&140 - &15F Redirection manager errors
&160 - &17F OS_EvaluateExpression errors
&180 - &18F OS_Heap errors
&190 - &19F Territory errors
&1A0 - &1AF OS_Claim/OS_Release errors
&1B0 - &1BF OS_ChangeEnvironment errors
&1C0 - &1DF OS_ChangeDynamicArea errors
&1E0 - &1EF OS_CLI/miscellaneous errors
&200 - &27F Font manager errors
&280 - &2BF Wimp errors
&2C0 - &2FF Date/time conversion error
&300 - &3FF Econet errors
&400 - &4FF FileSwitch errors
&500 - &5BF Podule errors
&5C0 - &5FF Printer driver errors
&600 - &63F General OS errors
&640 - &6FF International module errors
&700 - &7FF Sprite errors
&800 - &87F Debugger errors
&880 - &8FF BBC I/O Podule errors
&900 - &97F Shell CLI errors, and miscellaneous others
&980 - &9FF Draw errors
&A00 - &A3F ColourTrans errors
&A40 - &A7F ARM3 errors
&A80 - &ABF TaskWindow errors
&AC0 - &AFF MessageTrans errors
&B00 - &B3F Pinboard errors
&B40 - &B4F Portable module errors
&B80 - &BBF Filer errors
&BC0 - &BDF SCSITape module errors
&BE0 - &BFF ScreenModes module errors
&C00 - &C1F DisplayManager errors
&C20 - &C3F DMAManager module errors
&C40 - &C5F ARM support module errors
&C60 - &C7F HAL errors
&1XX00 - &1XXFF Errors from filing system number &XX
&20000 - &200FF Sound errors
&20100 - &201FF SCSIDriver module errors
&20200 - &202FF VideoCommands module errors
&20300 - &203FF IIC module errors
&20400 - &204FF MIDI module errors
&20500 - &205FF PCEmulator errors
&20600 - &206FF Desktop Development Environment errors
&20700 - &207FF Buffer Manager errors
&20800 - &20BFF Reserved for Gold OS
&20C00 - &20CFF DrawFile render errors
&20D00 - &20DFF ColourPicker errors
&20E00 - &20EFF DCI4 networking errors
&43F40 - &43F7F Joystick module errors
&800000 - 3rd party authors
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