(someone wrote) > A REP card belongs to the days when you had a 2540 card reader/punch > connected to your machine in the good old days of the 360 and 360 GT (aka > 370).
> You submitted the compile job and went off to the coffee lounge. When you > came back the object deck was in the card punch stacker. You wrapped it in a > "link and go" job and tried it. One you had analysed the dump, you saw that > you had made just one most trivial mistake. Rather than go though that long > compile job again, you went over to the 029 card punch and "fixed up" the > error with a REP card, slipped the card into the object deck just before the > END card - or RLD cards - and tried again. In the stories I remember, but never actually did or saw anyone do, one punched TXT cards to write over the mistake bytes. As far as I remember TXT have a start address and length such that one could do it. A table of the 256 possible punch combinations and the resulting bit patterns would be needed, though. The description I know of for the object module format is in the Linkage Editor PLM, for sale by IBM up until a few years ago. It should also be on bitsavers.org. -- glen ---------------------------------------------------------------------- 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
