track 7 indicates a 7-track tape (implies
trtch indica tes the
tape recording technique
a -odd parity, converter off, translator off.
oe -odd parity, converter on, translator off.
aT -odd parity, converter off, translator on.
E -even parity, converter off, translator off.
ET -even parity, converter off, translator on.
specifies the address of an error routine to be given control
if an error is found. If
occurs, control returns to the next sequential instruction in
the calling program, as it does if no error occurs.
7-track tape with a density of
and translator off.
If an error occurs, reqister 15 contains one of the following error
2 End of file or end of tape
4 Invalid device identification
5 Tape not attached
6 Tape is file-protected