On 13Dec08:0942-0800, Charles Mills wrote: > Hex is not a kind of data. It is a convenient way of > representing data. X'F1' is a clearer image in most > cases than 11110001 or 241. All data is potentially > hex; that is, is representable in hex. That's the > beauty of hex.
This is the paragraph I took (and still take) exception to. Before you assert the S/360 was digitally 100% binary you need to review all the schematics to ensure there aren't any non-binary components; e.g., three-state logic gates. Such is a question IBM Fellow Amdahl or any competent CE can address. But this is an area that even the microcode could be ignorant of. A BAL programmer had better deal with what the POPs document. If you program HFP instructions as if your are dealing with IEEE hardware your results are likely to become problematic at some point. At minimum, HFP documents a hexadecimal "kind of data" and I rest my case. -- <not cent from sell> May the LORD God bless you exceedingly abundantly! Dave_Craig______________________________________________ "So the universe is not quite as you thought it was. You'd better rearrange your beliefs, then. Because you certainly can't rearrange the universe." __--from_Nightfall_by_Asimov/Silverberg_________________ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
