tape drive. The format of the
is an optional statement label.
specifies the buffer address into which the record is to be
read. It may be specified in either of two ways:
the symbolic address of the buffer. lineaddr
(reg) a register containing the address of the buffer.
specifies the length of the largest record to be read.
a register containing the length.
specifies the device from which the line is to be
specified in either of two vays:
It may be
technique options. It must be in the following form:
([ track ],[ density], [trtch])
ER RDR=er ra ddr
track 1 indicates a 1-track tape (implies
9 indicates a 9-track tape (implies
indica tes the
tape recording technique for
One of the following must be
o -odd parity, converter off, translator off.
DC -odd parity, converter on, translator off.
E -even parity, converter off, translator off.
ET -even parity, converter off, translator on.
specifies the address of an error routine to be
if an error is found. If ERROR= is not coded and an error
occurs, control returns to the next sequential instruction in
the calling program, as it does if no error occurs.