8 Print Tape Normal (TWN)
General Description
This instruction transfers a specified series of consecutive characters in HSM to the Multiple Tape Lister Buffer.
Format
Operation — 8
N
— — (minus)
A Address — Address of the first location in HSM to be transferred to the buffer (Control Character).
B Address — Address of the last location in HSM to be transferred to the buffer.
Direction of Operation
Left to right.
Outline of Operation
This instruction sends a start signal to the Multiple Tape Lister and operates in the following cycle:
The contents of the HSM location specified by the A Register are transferred to the Lister storage buffer. The
contents of the A Register are compared with the contents of the B Register. The contents of the A Register are
incremented by one. If the comparison proved equal, the instruction terminates. If the comparison proved unequal,
the cycle is repeated.
Final Register Contents
(A)
f
= Address of location one to the right of the last character transferred to the buffer.
(B)t = (B),
Timing
Print and paper advance of one line takes 30.0 ms. Paper advance to the top of the form is accomplished at the
rate of 18 ms per line.
Note: Appendix I indicates the format of the Control Character and the characters which may be printed.
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