Commodore VIC-20 - Page 273

TAIIE 8-2. Status Byte Returned by External Devices via Variable ST
Status
Device
Operation
00000001 00000010 00000100
00001000
00010000
Read as I Read as 2 Read as 4
Read as 8 Read as
16
Read from Operation
Operation
Short Long
Unrecov-
erable
eassette
OK
OK
Block. Block.
read
drive
Data block Data block
read
had read had
error
Verify
fewer bytes more bytes
Any
than ex- than ex-
cassette
pected pected
verify
drive
mismatch
Disk
Receiving
Transmitting
None
None None
drives
(all
device not device not
models)
available
available
00100000
01000000
Read as 32
Read as 64
Checksum
End
of file
error. One
encounter-
or more ed
data bits
read in-
correctly
None
None
End of file
10000000
Read as 128
End of tape
encountered
Disk drive
not present
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