Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!rpi!netserv2!deven From: deven@rpi.edu (Deven T. Corzine) Newsgroups: comp.sys.amiga.tech Subject: Re: XPRotocols -- What's available & Where? Message-ID: Date: 4 Jan 90 14:37:26 GMT References: <19471@watdragon.waterloo.edu> <1405@sas.UUCP> Organization: Rensselaer Polytechnic Institute, Troy, NY Lines: 25 In-Reply-To: sasjjr@sas.UUCP's message of 28 Dec 89 14:42:28 GMT On 28 Dec 89 14:42:28 GMT, sasjjr@sas.UUCP (Jack Rouse) said: sasjjr> I am interested in hearing about any implementations of sasjjr> windowed XMODEM and batch YMODEM, which would fill the holes I sasjjr> currently see in VLT's selection of protocols. If memory serves, these are actually both degenerate forms of Zmodem; the Zmodem protocol is designed that it MUST be able to fall back on X/Ymodem... [At least that's what I remember from the protocol docs I have somewhere...] So, take a closer look at XPRZmodem.library and see if it also offers X/Ymodem... By the way, Xmodem, Ymodem and all the variations on them (windowed, batch, 1K, CRC, etc.) are all only slightly different enhancements to the basic Xmodem protocol, and all of the elements are incorporated in the Zmodem protocol. (which is I think why it is supposed to be able to fall back; Xmodem is much simpler than Zmodem.) Deven -- Deven T. Corzine Internet: deven@rpi.edu, shadow@pawl.rpi.edu Snail: 2151 12th St. Apt. 4, Troy, NY 12180 Phone: (518) 274-0327 Bitnet: deven@rpitsmts, userfxb6@rpitsmts UUCP: uunet!rpi!deven Simple things should be simple and complex things should be possible.