Path: csiph.com!usenet.pasdenom.info!aioe.org!.POSTED!not-for-mail From: "Rod Pemberton" Newsgroups: comp.lang.forth Subject: Re: FORTH - How Does It Work? Date: Tue, 05 May 2015 03:31:12 -0400 Organization: Aioe.org NNTP Server Lines: 40 Message-ID: References: <058a96b0-8a32-476d-b062-a8db0be69130@googlegroups.com> <5547c4e0$0$3072$e4fe514c@dreader35.news.xs4all.nl> <1e5a7108-44c2-49ce-9d58-475a7c853dc5@googlegroups.com> NNTP-Posting-Host: n4wpt9zq8xR26Ttf9mo2BA.user.speranza.aioe.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit X-Complaints-To: abuse@aioe.org User-Agent: Opera Mail/12.16 (Linux) X-Notice: Filtered by postfilter v. 0.8.2 Xref: csiph.com comp.lang.forth:38832 On Mon, 04 May 2015 20:34:59 -0400, Jason Damisch wrote: > On Monday, May 4, 2015 at 5:00:58 PM UTC-7, Rod Pemberton wrote: >> It seems that the constants beginning with digit '6' might be XTs >> due to COMPILE, . I could guess that >DEFINER takes the constants >> which begin with '14', but what is >DEFINER ? > > I'm not sure about all of that. But, if you want > to understand how a simpler Forth works which is > simpler than current optimizing Forth systems, > then instead of guessing, why not grab > Inside F83 from Ting? > I appreciate the replies Jason, although I did find the first to be rather funny as I first learned hexadecimal with 6502 assembly back in the 1980's. Also, you probably wanted "discern" not "decern". The latter is obsolete. However, I've already implemented an ITC Forth interpreter. It's built up from a small set of primitives or low-level words. I believe that Dr. C.H. Ting and Bill Muench were the first to popularize that approach with their eForth and it's 36 primitives. I was just wondering what the numbers meant in the gForth context as they're obviously rather cryptic. It appears that there are two distinct sets of ranges. If one set is for XTs then what are the others? The other set obviously has something to do with the >DEFINER word, which I was hoping someone familiar with gForth was familiar with. So, I guess the multiple gForth authors here are not ... As Albert pointed out, this is not conducive to anyone learning Forth. Rod Pemberton -- Cars kill more people than guns in the U.S. Yet, no one is trying to take away your car.