The following message is a courtesy copy of an article that has been posted to comp.sys.ibm.sys3x.misc,alt.folklore.computers,bit.listserv.ibm-main as well.
[EMAIL PROTECTED] writes: > I could read ASCII from a paper tape. Took me a while. :-) previous post in this thread: http://www.garlic.com/~lynn/2007q.html#48 IBM System/3 & 3277-1 i eventually learned to read 12-2-9 (i.e. card punch holes for hex "02") "txt" text deck cards ... as part of multi-punch/duplicate cards and punching patches ... i had a 2000 card assembler program and it was frequently faster to multi-punch fixes (into duplicate/new card) than to reassemble program (which could take 30-60 minutes elapsed time ... this was on 360/30 under os/360 release 6 ... i had dedicated university machine room on weekends for 48hrs stretch). basically had to not only be able to read storage dumps and equivalence between hexcode and things like instructions and/or addresses ... but the similar information on cards in "punch hole" representation. field/col definition for 12-2-9 TXT card: col 1 12-2-9 / x'02' 2-4 TXT 5 blank 6-8 relative address of first instruction on record 9-10 blank 11-12 byte count ... number of bytes in information field 15-16 ESDID 17-72 56-byte information field 73-80 deck id, sequence number, or both cols. 2-4 and 73-80 were character ... the other fields were hex. q&d converstion of gcard ios3270 to html http://www.garlic.com/~lynn/gcard.html but it lacks card punch hole equivalence for hex (on real green card) here is actual scan of a 360 green card ... front & back (11mb) http://weblog.ceicher.com/archives/IBM360greencard.pdf from: http://weblog.ceicher.com/archives/2006/12/ibm_system360_green_card.html the following table is from http://www.cs.uiowa.edu/~jones/cards/codes.html giving equivalence between card punch codes, hexidemal value, and ebcdic 00 10 20 30 40 50 60 70 80 90 A0 B0 C0 D0 E0 F0 ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ 0|NUL| |DS | |SP | & | - | | | | | | | | | 0 |0 |__1|___|__2|___|__3|__4|__5|___|___|___|___|___|___|___|___|___| 1| | |SOS| | | | / | | a | j | | | A | J | | 1 |1 |___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___| 2| | |FS | | | | | | b | k | s | | B | K | S | 2 |2 |___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___| 3| |TM | | | | | | | c | l | t | | C | L | T | 3 |3 |___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___| 4|PF |RES|BYP|PN | | | | | d | m | u | | D | M | U | 4 |4 |___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___| 5|HT |NL |LF |RS | | | | | e | n | v | | E | N | V | 5 |5 |___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___| 6|LC |BS |EOB|UC | | | | | f | o | w | | F | O | W | 6 |6 |___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___| 7|DEL|IL |PRE|EOT| | | | | g | p | x | | G | P | X | 7 |7 |___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___| 8| | | | | | | | | h | q | y | | H | Q | Y | 8 |8 |___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___| 9| | | | | | | | | i | r | z | | I | R | Z | 9 |9 |___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___| A| | | | | ¢ | ! | | : | | | | | | | | |2-8 |___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___| B| | | | | . | $ | , | # | | | | | | | | |3-8 |___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___| C| | | | | < | * | % | @ | | | | | | | | |4-8 |___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___| D| | | | | ( | ) | _ | ' | | | | | | | | |5-8 |___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___| E| | | | | + | ; | > | = | | | | | | | | |6-8 |___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___| F| | | | | | | ¬ | ? | " | | | | | | | | |7-8 |___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___| 12 11 10 12 11 10 12 11 10 12 11 10 9 9 9 10 12 11 i.e. hex values down the left and across the top, punch holes dorwn the right adn across the bottom. and card punch format ... card rows are number 12, 11, 0-9 from the top. /&-0123456789ABCDEFGHIJKLMNOPQR/STUVWXYZb#@'>V?.¤[<§!$*];^±,%v\¶ 12 / O OOOOOOOOO OOOOOO 11| O OOOOOOOOO OOOOOO 0| O OOOOOOOOO OOOOOO 1| O O O O 2| O O O O O O O O 3| O O O O O O O O 4| O O O O O O O O 5| O O O O O O O O 6| O O O O O O O O 7| O O O O O O O O 8| O O O O OOOOOOOOOOOOOOOOOOOOOOOO 9| O O O O |__________________________________________________________________ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
