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MIT_Whirlwind.txt
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3:33 PM 23-Feb-22
MIT Whirlwind
From http://www.bitsavers.org/pdf/mit/whirlwind/Whirlwind_I_descr_Apr1955.pdf
Punched Paper Tape:
Flexowriter 7-hole tape (6 information, 1 index); 6-binary-digit
code for letters and decimal numbers, 10 lines/inch.
http://web.mit.edu/digitalapollo/Documents/Chapter5/laningwhirlwind.pdf
a Stop character must be placed at the end of every program.
Flexowriter character number 49
Photo of Whirlwind tapes:
http://bitsavers.org/bits/MIT/whirlwind/X4222.2008_Whirlwind_ptp/pictures/start_of_sort_20180724/8.JPG
Whirlwind paper tape format:
http://www.bitsavers.org/pdf/mit/whirlwind/Whirlwind_Paper_Tape_Format.pdf
+++++++++++++++++++++++++++++++
4:14 PM 26-Feb-22
C:\Temp\whirlwindtest>ptap2dxf --whirlwind seq.7ch --segment=64
+--------+
| OO.OOO | WHIRLWIND
| O . | WHIRLWIND
| O . | WHIRLWIND
| OO.OOO | WHIRLWIND
| O . | WHIRLWIND
| O . | WHIRLWIND
| O . | WHIRLWIND
| . | WHIRLWIND
| O.OO | WHIRLWIND
| O . O | WHIRLWIND
| O . | WHIRLWIND
| O . | WHIRLWIND
| O . | WHIRLWIND
| O . O | WHIRLWIND
| O.OO | WHIRLWIND
| . | WHIRLWIND
| . O | WHIRLWIND
| .O | WHIRLWIND
| O. | WHIRLWIND
| O. | WHIRLWIND
| O. | WHIRLWIND
| .O | WHIRLWIND
| . O | WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
|OOO. OO| WHIRLWIND
| .OO O| WHIRLWIND
| O. O| WHIRLWIND
| O. O O| WHIRLWIND
|OOO.O OO| WHIRLWIND
| . O O| WHIRLWIND
|O O.OO O| WHIRLWIND
| O.OO O| WHIRLWIND
| . O O| WHIRLWIND
| OO. O| WHIRLWIND
| OO.O O| WHIRLWIND
| . O O| WHIRLWIND
| O. O| WHIRLWIND
|OO . O| WHIRLWIND
| OO. O O| WHIRLWIND
| O. O| WHIRLWIND
|OOO. OO| WHIRLWIND
| .OO O| WHIRLWIND
|OOO.O OO| WHIRLWIND
| OO.O O| WHIRLWIND
|O . O| WHIRLWIND
| O.O O| WHIRLWIND
|OO . O| WHIRLWIND
| OO. O| WHIRLWIND
| O. O O| WHIRLWIND
|OOO. OO| WHIRLWIND
| O. OO| WHIRLWIND
| O. O| WHIRLWIND
|O .OO O| WHIRLWIND
|OOO.O OO| WHIRLWIND
+--------+
|O O. O| WHIRLWIND
| O.O O| WHIRLWIND
| O .O O| WHIRLWIND
|O .O O| WHIRLWIND
|O .OO O| WHIRLWIND
| O.O O| WHIRLWIND
| OO. O| WHIRLWIND
| O . O O| WHIRLWIND
| O. O| WHIRLWIND
| .OO O| WHIRLWIND
|O . O| WHIRLWIND
| O. O| WHIRLWIND
|OOO. OO| WHIRLWIND
|OOO. O| WHIRLWIND
| O.O O| WHIRLWIND
|O . O| WHIRLWIND
| O. O| WHIRLWIND
| OO. OO| WHIRLWIND
| O.O O| WHIRLWIND
|O O. O| WHIRLWIND
|O . O| WHIRLWIND
| OO. O O| WHIRLWIND
|O O.O O| WHIRLWIND
| O . OO| WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
| . | WHIRLWIND
+--------+
Joiner 0000: data byte 00000000 absolute position 00000064
Joiner 0001: data byte 00000064 absolute position 00000098
C:\Temp\whirlwindtest>