David, Thank you very much. I think I can find out everything else I need to know experimentally using variations on your examples.
Where are these constructions documented? I have not found them in the HL:ASM 1.6 Language Reference. On 4/3/12, David Bond <[email protected]> wrote: > Which values do you want that are not provided by DD'+(INF)' or DB'(QNAN)' ? > > On Tue, 3 Apr 2012 10:03:20 -0400, John Gilmore wrote: >>This post is a specialized one that will be of interrest only to those >>who work with binary and/or decimal floating-point values in assembly >>language. >> >>I am in the process of extending some table-generation machinery to >>support the use of >>1) positive and negative infinities, which compare larger and smaller >>than other values, and 2) NaNs (Not-a-Number values), both signaling >>and quiet ones, which are useful, among other things, as placeholders >>for missing or uninitialized table elements. >> >>These special values all have defined hardware representations, and I >>now come to my question. Are there plans to provide mechanisms for >>generating these special values using the HLASM without resorting to >>bit-string constructions? >> >>Peter Elderon and his PL/I group have provided BIFs and the like for >>doing so; there is reason that something like these facilities is or >>will be available in C; and it would be very convenient to have a >>standard assembly-language facility for doing so too. >> >>John Gilmore - Ashland, MA 01721 - USA > -- John Gilmore, Ashland, MA 01721 - USA
