RetroBrew Computers Forum: General Discussion » xmodem-1K, ymodem, or zmodem

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xmodem-1K, ymodem, or zmodem [message #8911]

Wed, 28 July 2021 07:23

lynchaj
Messages: 1080
Registered: June 2016

Senior Member

Hi

One of the first programs often ported to a new RBC system is xmodem usually right after the debugger and CP/M-2.2. I have been using xmodem 5.0 for many years and while it works great at what it does the decision to use 128 byte packets rather hobbles it due to a lot of overhead. Also it does not support automatic file names or start up or many other advanced features. Kermit is an improvement but still pretty slow compared to the more advanced file transfer protocol programs.

I recall using xmodem-1K, ymodem, and zmodem on the IBM PC clones many years ago and they are much faster and more capable than the original xmodem. Are any of these available for CP/M-80 2.2? I've seen there is a terminal program for CP/M which supports zmodem (ZMP) but I think I am looking for something the other way around. Normally I use minicom on a Linux notebook as a terminal to the Z80 MBC and xmodem as the file transfer tool.

Has anyone used ZMP? https://github.com/mecparts/zmp can it be used as just a file transfer program?

Like to hear people's thoughts and wisdom on this subject. I am hoping there is some great but unnoticed file transfer program available

Thanks, Andrew Lynch

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[Message index]

		xmodem-1K, ymodem, or zmodem By: lynchaj on Wed, 28 July 2021 07:23
		Re: xmodem-1K, ymodem, or zmodem By: edzard on Wed, 28 July 2021 08:11
		Re: xmodem-1K, ymodem, or zmodem By: scruss on Wed, 28 July 2021 11:56
		Re: xmodem-1K, ymodem, or zmodem By: lynchaj on Thu, 29 July 2021 03:15
		Re: xmodem-1K, ymodem, or zmodem By: b1ackmai1er on Sat, 31 July 2021 11:06
		Re: xmodem-1K, ymodem, or zmodem By: b1ackmai1er on Wed, 11 August 2021 07:41
		Re: xmodem-1K, ymodem, or zmodem By: lynchaj on Wed, 11 August 2021 08:20
		Re: xmodem-1K, ymodem, or zmodem By: Wayne W on Wed, 11 August 2021 17:47
		Re: xmodem-1K, ymodem, or zmodem By: b1ackmai1er on Thu, 12 August 2021 06:46
		Re: xmodem-1K, ymodem, or zmodem By: Wayne W on Thu, 12 August 2021 12:34
		Re: xmodem-1K, ymodem, or zmodem By: b1ackmai1er on Thu, 19 August 2021 07:49
		Re: xmodem, ymodem, zmodem By: jayindallas on Fri, 20 August 2021 06:26
		Re: xmodem-1K, ymodem, or zmodem By: Wayne W on Fri, 20 August 2021 19:47
		Re: xmodem-1K, ymodem, or zmodem By: Wayne W on Sat, 21 August 2021 12:36
		Re: xmodem-1K, ymodem, or zmodem By: b1ackmai1er on Sat, 21 August 2021 18:15
		Re: xmodem-1K, ymodem, or zmodem By: plasmo on Sat, 21 August 2021 19:04
		Re: xmodem-1K, ymodem, or zmodem By: Wayne W on Sat, 21 August 2021 20:04
		Re: xmodem-1K, ymodem, or zmodem By: b1ackmai1er on Sun, 22 August 2021 02:06
		Re: xmodem-1K, ymodem, or zmodem By: b1ackmai1er on Sun, 22 August 2021 03:46
		Re: xmodem-1K, ymodem, or zmodem By: Wayne W on Sun, 22 August 2021 07:09
		Re: xmodem-1K, ymodem, or zmodem By: Wayne W on Sun, 22 August 2021 07:08
		Re: xmodem-1K, ymodem, or zmodem By: Wayne W on Sun, 22 August 2021 07:13
		Re: xmodem-1K, ymodem, or zmodem By: lynchaj on Sun, 22 August 2021 09:37
		Re: xmodem-1K, ymodem, or zmodem By: plasmo on Sun, 22 August 2021 11:56
		Re: xmodem-1K, ymodem, or zmodem By: agn453 on Sun, 22 August 2021 22:37
		Re: xmodem-1K, ymodem, or zmodem By: lynchaj on Mon, 23 August 2021 06:23
		Re: xmodem-1K, ymodem, or zmodem By: Wayne W on Mon, 23 August 2021 11:10
		Re: xmodem-1K, ymodem, or zmodem By: lynchaj on Mon, 23 August 2021 11:32
		Re: xmodem-1K, ymodem, or zmodem By: lynchaj on Tue, 12 October 2021 04:13
		Re: xmodem-1K, ymodem, or zmodem By: Wayne W on Sun, 22 August 2021 07:01
		Re: xmodem-1K, ymodem, or zmodem By: lynchaj on Tue, 12 October 2021 04:27

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