READ
Returns:
R0<63> = 0 Success
R0<63> = 1 Failure
R0<62> = 1 END-OF-FILE condition encountered
R0<62> = 0 Otherwise
R0<61> = 1 Illegal record length specified
R0<61> = 0 Otherwise
R0<60> = 1 END-OF-TAPE encountered
R0<60> = 0 Otherwise
R0<59:32> Device-dependent status
R0<31:0> Number of bytes that were read
Console 16–67
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