I didn't mean to imply that the self-loader itself was 6K in size. It was only 5 or 6 object deck cards, I think. The supervisor was 6K. First the self-loader read itself in from the card reader after you IPLed from the card reader. Then it read in the supervisor from the SYSRES tape, then it went back to the card reader to read the JCL for the first and only job, which specified executing the assembler program. Then the supervisor forward-spaced the SYSRES tape to where the object modules were for the assembler, read them into the upper 10K of storage, and transferred control to the assembler. Or something like that. It was over 43 years ago, and now I can just barely remember how to spell "low core".
Bill Fairchild Rocket Software -----Original Message----- From: Bill Fairchild Sent: Monday, August 02, 2010 9:07 AM To: 'IBM Mainframe Discussion List' Subject: RE: History of Hard-coded Offsets (Was: TSSO problems) ... 10K, which was all that was left after the approximately 6K self-loader loaded in the "supervisor" from tape and then loaded the assembler from tape. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
