<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Oct 21, 2020, at 6:53 AM, David Hough CFP <<a href="mailto:pcfp@oakapple.net" class="">pcfp@oakapple.net</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class=""><blockquote type="cite" class=""><blockquote type="cite" class="">The second case means that underflow can't be detected just by looking <br class="">for a subnormal or zero result. Worse, in binary, a minimum normalized <br class="">result handled by default might be accompanied by an underflow flag in <br class="">some implementations and not others.<br class=""></blockquote></blockquote><br class=""><blockquote type="cite" class="">Can you point me somewhere I can read a bit more on the above?<br class=""></blockquote><br class=""><a href="https://754r.ucbtest.org/background/exceptions.txt" class="">https://754r.ucbtest.org/background/exceptions.txt</a><br class=""><br class=""><br class="">Unfortunately 754 default underflow handling doesn't make a lot of sense<br class="">without the context of alternate exception handling, which C so far avoided.<br class=""></div></div></blockquote><div><br class=""></div>There is C support for alternate exception handling in TS5:</div><div><br class=""></div><div><a href="https://wiki.edg.com/pub/CFP/WebHome/ISO_IEC_TS_18661-5_2016-Character_PDF_document_en.pdf" class="">https://wiki.edg.com/pub/CFP/WebHome/ISO_IEC_TS_18661-5_2016-Character_PDF_document_en.pdf</a></div><div><br class=""><blockquote type="cite" class=""><div class=""><div class=""><br class="">_______________________________________________<br class="">Cfp-interest mailing list<br class=""><a href="mailto:Cfp-interest@oakapple.net" class="">Cfp-interest@oakapple.net</a><br class="">http://mailman.oakapple.net/mailman/listinfo/cfp-interest<br class=""></div></div></blockquote></div><br class=""></body></html>