Owner`s manual

Table I–2: Model 300 Standard Console Error Messages
Error Message Meaning
?20 Illegal memory reference. An attempt was made to reference a vir-
tual address (/V) that is either un-
mapped or is protected against access un-
der the current PSL.
?21 Illegal command. The command was not recognized, con-
tained the wrong number of parame-
ters, or contained unrecognized or inap-
propriate qualifiers.
?22 Illegal address. The specified address was recognized as
being invalid, for example, a general pur-
pose register number greater than 15.
?23 Value is too large. A parameter or qualifier value con-
tained too many digits.
?24 Conflicting qualifiers. A command specified recognized quali-
fiers that are illegal in combination.
?25 Checksum did not match. The checksum calculated for a block of X
command data did not match the check-
sum received.
?26 Halted. The processor is currently halted.
?27 Item was not found. The item requested in a FIND com-
mand could not be found.
?28 Timeout while waiting for characters. The X command failed to receive a full
block of data within the timeout pe-
riod.
?29 Machine check accessing memory. Either the specified address is not im-
plemented by any hardware in the sys-
tem, or an attempt was made to write
a read-only address, for example, the ad-
dress of the 33rd Mbyte of mem-
ory on a 32-Mbyte system.
?2A Unexpected machine check or
interrupt.
A valid operation within the console
caused a machine check or interrupt.
?2B Command is not implemented. The command is not implemented by this
console.
?2C Unexpected exception. A valid operation within the console
caused an exception.
Console Error Messages for Model 300 I–3