<!-- MHonArc v2.4.4 --> <!--X-Subject: [MUD-Dev] Re: Bruce Sterling on Virtual Community goals --> <!--X-From-R13: "Xba O. Znzoreg" <wyflfvapNvk.argpbz.pbz> --> <!--X-Date: Wed, 21 Oct 1998 17:32:13 -0700 --> <!--X-Message-Id: 199810220029.TAA25558@dfw-ix11.ix.netcom.com --> <!--X-Content-Type: text/plain --> <!--X-Reference: 199810210306.WAA26802@dfw-ix5.ix.netcom.com --> <!--X-Reference: Pine.LNX.3.93.981020213351.18251A-100000#ias,jb.com --> <!--X-Head-End--> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <html> <head> <title>MUD-Dev message, [MUD-Dev] Re: Bruce Sterling on Virtual Community goals</title> <!-- meta name="robots" content="noindex,nofollow" --> <link rev="made" href="mailto:jlsysinc#ix,netcom.com"> </head> <body background="/backgrounds/paperback.gif" bgcolor="#ffffff" text="#000000" link="#0000FF" alink="#FF0000" vlink="#006000"> <font size="+4" color="#804040"> <strong><em>MUD-Dev<br>mailing list archive</em></strong> </font> <br> [ <a href="../">Other Periods</a> | <a href="../../">Other mailing lists</a> | <a href="/search.php3">Search</a> ] <br clear=all><hr> <!--X-Body-Begin--> <!--X-User-Header--> <!--X-User-Header-End--> <!--X-TopPNI--> Date: [ <a href="msg00323.html">Previous</a> | <a href="msg00325.html">Next</a> ] Thread: [ <a href="msg00288.html">Previous</a> | <a href="msg00263.html">Next</a> ] Index: [ <A HREF="author.html#00324">Author</A> | <A HREF="#00324">Date</A> | <A HREF="thread.html#00324">Thread</A> ] <!--X-TopPNI-End--> <!--X-MsgBody--> <!--X-Subject-Header-Begin--> <H1>[MUD-Dev] Re: Bruce Sterling on Virtual Community goals</H1> <HR> <!--X-Subject-Header-End--> <!--X-Head-of-Message--> <UL> <LI><em>To</em>: <A HREF="mailto:mud-dev#kanga,nu">mud-dev#kanga,nu</A></LI> <LI><em>Subject</em>: [MUD-Dev] Re: Bruce Sterling on Virtual Community goals</LI> <LI><em>From</em>: "Jon A. Lambert" <<A HREF="mailto:jlsysinc#ix,netcom.com">jlsysinc#ix,netcom.com</A>></LI> <LI><em>Date</em>: Wed, 21 Oct 1998 20:29:26 -5</LI> <LI><em>Reply-To</em>: <A HREF="mailto:mud-dev#kanga,nu">mud-dev#kanga,nu</A></LI> </UL> <!--X-Head-of-Message-End--> <!--X-Head-Body-Sep-Begin--> <HR> <!--X-Head-Body-Sep-End--> <!--X-Body-of-Message--> <PRE> On 20 Oct 98, Marc Hernandez wrote: > On Tue, 20 Oct 1998, Jon A. Lambert wrote: > > }Stack-based or psuedo-register based? > > Does a psuedo register system create any real benefit? They are > still implemented as memory locations AND have the additional benefit of > having to be saved and loaded (unless there is some nice benefit I didnt > think of (which is very possible (like reading lisp?))). > IIRC, Java makes use of 4 psuedo-registers in addition to a stack. It's a mechanism to save instructions executing some arithmetic operations and some loop constructs. It also makes native code generation more straight forward. It's really an optimization issue. Reading and writing to a pseudo-register will always be cheaper than pushing and popping a stack. There's no stack pointer to increment or decrement. :) > }Details: > > }Primitive data types to be represented. > }Complex data types (object). > > Why? Will the language be oject-oriented?. > }Label generation. > > hmmm. Isnt this only for the assemblers benefit? Why not skip to > memory locations? Well there may be some benefits to decompilation and/or pretty printing, if that's a desired feature. Yes, you can easily forego label generation and use offsets. > }Symbolic storage. > }Variable storage. > }Type conversions/promotions. > > Isnt this basically a compile time issue? > It depends. If a compiler supports very weak typing, type conversions must be done at run time. A sample, (see Coolmud) var A; A = "string"; A = 1.57 And there are type promotions to consider: float A; int B; A = B * 1.4; Is B temporarily promoted to a float at runtime? > }Booleans/conditionals. > > necessary for looping/control. Doesnt have to be true booleans. Right. I actually meant boolean operations like (x AND NOT y). > }Operator precedence. > > operator precedence is taken care of by the compiler (else > expression evaluators would be very easy to right :-) ). > Nod. > }Unique ID's are crucial to object manipulation. For instance the > }interface to a ROM drop in might be object/room vnums. Those objects > }would have no methods of course. I would think the specifications > }for "object" would be a custom interface. A generic way to descibe > }an object to the VM would be needed. > > Such as leave it as 'memory' and let the language impose its own > structure to it. (like the fact that there are no 'signed' integers to > the processor. Just sets of bits with operations on them. We impose the > fact that _these_ four bytes are a signed integer and thus we use > SignedAdd etc). I'm not sure. How does the language address the object Player or the attributes of object Player? -- --/*\ Jon A. Lambert - TychoMUD Internet:jlsysinc#ix,netcom.com /*\-- --/*\ Mud Server Developer's Page <<A HREF="http://www.netcom.com/~jlsysinc">http://www.netcom.com/~jlsysinc</A>> /*\-- --/*\ "Everything that deceives may be said to enchant" - Plato /*\-- </PRE> <!--X-Body-of-Message-End--> <!--X-MsgBody-End--> <!--X-Follow-Ups--> <HR> <!--X-Follow-Ups-End--> <!--X-References--> <UL><LI><STRONG>References</STRONG>: <UL> <LI><STRONG><A NAME="00285" HREF="msg00285.html">[MUD-Dev] Re: Bruce Sterling on Virtual Community goals</A></STRONG> <UL><LI><EM>From:</EM> "Jon A. Lambert" <jlsysinc#ix,netcom.com></LI></UL></LI> <LI><STRONG><A NAME="00288" HREF="msg00288.html">[MUD-Dev] Re: Bruce Sterling on Virtual Community goals</A></STRONG> <UL><LI><EM>From:</EM> Marc Hernandez <marc#jb,com></LI></UL></LI> </UL></LI></UL> <!--X-References-End--> <!--X-BotPNI--> <UL> <LI>Prev by Date: <STRONG><A HREF="msg00323.html">[MUD-Dev] Re: Recursive look</A></STRONG> </LI> <LI>Next by Date: <STRONG><A HREF="msg00325.html">[MUD-Dev] Re: Recursive look</A></STRONG> </LI> <LI>Prev by thread: <STRONG><A HREF="msg00288.html">[MUD-Dev] Re: Bruce Sterling on Virtual Community goals</A></STRONG> </LI> <LI>Next by thread: <STRONG><A HREF="msg00263.html">[MUD-Dev] Re: Bruce Sterling on Virtual Community goals</A></STRONG> </LI> <LI>Index(es): <UL> <LI><A HREF="index.html#00324"><STRONG>Date</STRONG></A></LI> <LI><A HREF="thread.html#00324"><STRONG>Thread</STRONG></A></LI> </UL> </LI> </UL> <!--X-BotPNI-End--> <!--X-User-Footer--> <!--X-User-Footer-End--> <ul><li>Thread context: <BLOCKQUOTE><UL> <LI><STRONG>[MUD-Dev] Re: Bruce Sterling on Virtual Community goals</STRONG>, <EM>(continued)</EM> <ul compact> <ul compact> <ul compact> <ul compact> <ul compact> <ul compact> <ul compact> <ul compact> <LI><strong><A NAME="00328" HREF="msg00328.html">[MUD-Dev] Re: Bruce Sterling on Virtual Community goals</A></strong>, J C Lawrence <a href="mailto:claw#under,engr.sgi.com">claw#under,engr.sgi.com</a>, Thu 22 Oct 1998, 01:30 GMT </LI> </ul> <LI><strong><A NAME="00289" HREF="msg00289.html">[MUD-Dev] Re: Bruce Sterling on Virtual Community goals</A></strong>, Jon A. Lambert <a href="mailto:jlsysinc#ix,netcom.com">jlsysinc#ix,netcom.com</a>, Wed 21 Oct 1998, 04:53 GMT </LI> </ul> </ul> <LI><strong><A NAME="00285" HREF="msg00285.html">[MUD-Dev] Re: Bruce Sterling on Virtual Community goals</A></strong>, Jon A. Lambert <a href="mailto:jlsysinc#ix,netcom.com">jlsysinc#ix,netcom.com</a>, Wed 21 Oct 1998, 03:10 GMT <UL> <LI><strong><A NAME="00288" HREF="msg00288.html">[MUD-Dev] Re: Bruce Sterling on Virtual Community goals</A></strong>, Marc Hernandez <a href="mailto:marc#jb,com">marc#jb,com</a>, Wed 21 Oct 1998, 04:50 GMT <UL> <LI><strong><A NAME="00324" HREF="msg00324.html">[MUD-Dev] Re: Bruce Sterling on Virtual Community goals</A></strong>, Jon A. Lambert <a href="mailto:jlsysinc#ix,netcom.com">jlsysinc#ix,netcom.com</a>, Thu 22 Oct 1998, 00:32 GMT </LI> </UL> </LI> </UL> </LI> </ul> </ul> </ul> </ul> <LI><strong><A NAME="00263" HREF="msg00263.html">[MUD-Dev] Re: Bruce Sterling on Virtual Community goals</A></strong>, Chris Gray <a href="mailto:cg#ami-cg,GraySage.Edmonton.AB.CA">cg#ami-cg,GraySage.Edmonton.AB.CA</a>, Tue 20 Oct 1998, 04:42 GMT <UL> <LI><strong><A NAME="00264" HREF="msg00264.html">[MUD-Dev] Re: Bruce Sterling on Virtual Community goals</A></strong>, J C Lawrence <a href="mailto:claw#kanga,nu">claw#kanga,nu</a>, Tue 20 Oct 1998, 04:45 GMT </LI> </UL> </LI> <LI><strong><A NAME="00265" HREF="msg00265.html">[MUD-Dev] Re: Bruce Sterling on Virtual Community goals</A></strong>, Chris Gray <a href="mailto:cg#ami-cg,GraySage.Edmonton.AB.CA">cg#ami-cg,GraySage.Edmonton.AB.CA</a>, Tue 20 Oct 1998, 04:50 GMT <UL> <LI><strong><A NAME="00269" HREF="msg00269.html">[MUD-Dev] Re: Bruce Sterling on Virtual Community goals</A></strong>, Jon Leonard <a href="mailto:jleonard#divcom,slimy.com">jleonard#divcom,slimy.com</a>, Tue 20 Oct 1998, 06:19 GMT </LI> </UL> </LI> </ul> </LI> </UL></BLOCKQUOTE> </ul> <hr> <center> [ <a href="../">Other Periods</a> | <a href="../../">Other mailing lists</a> | <a href="/search.php3">Search</a> ] </center> <hr> </body> </html>