Atari XL - Page 232

220
The Ateri XL Handbook
139 DEVICE NAK
No response from peripheral device.
140 SERIAL FRAl\1E ERROR
Indicates faulty computer or peripheral.
141 CURSOR OUT OF RANGE
The cursor is outside the allowable range for a
graphics mode.
142 SERIAL BUS RUNOUT
Fault in serial bus between computer and
peri pherals.
143 CHECKSUM ERROR
Data being transferred from peripheral is being
corrupted.
144 DEVICE DONE ERROR
An attempt has been made to write to a write-
protected disk.
145 BAD SCREEN MODE ERROR
An error in the screen handler has occured.
146 FUNCTION NOT IMPLEMENTED
An attempt has been made to use a device in a
manner which is not possible.