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- Newsgroups: comp.sys.cbm
- Path: sparky!uunet!haven.umd.edu!darwin.sura.net!spool.mu.edu!umn.edu!doug.cae.wisc.edu!kolstad
- From: kolstad@cae.wisc.edu (Joel Kolstad)
- Subject: Re: 16 bit CRC source?
- Organization: U of Wisconsin-Madison College of Engineering
- Date: 13 Sep 92 22:39:23 CDT
- Message-ID: <1992Sep13.223923.22161@doug.cae.wisc.edu>
- References: <wzwnzyr.fuzzy@netcom.com> <1992Sep12.234219.22101@jhunix.hcf.jhu.edu> <92091326427@zone4.ocunix.on.ca>
- Lines: 33
-
- In article <92091326427@zone4.ocunix.on.ca> andrew@zone4.ocunix.on.ca (Andrew Low) writes:
- >In article <1992Sep12.234219.22101@jhunix.hcf.jhu.edu>
- >golds_ss@jhunix.hcf.jhu.edu (Stuart S Goldstone) writes:
- >>
- >There is no point in writing something as general as a file transfer
- >protocol and binding it to hardware that a few have (few, is less than half
- >all existing C64 users). The only hardware that should be considered is
- >a 64 and a 1541. Support for 2400 with no swiftlink should be considered.
- >1200 might turn out to be the max.
-
- I'd be willing to bet that you could do ZModem at 2400 with a 1541 and C-64
- WITHOUT a Swiftlink. The stickler is this: You're going to have to write
- code for the C-64, and ALSO for the 1541. Using the standard Kernel routines
- for RS-232 never worked, and using them for ZModem at 2400 will never work
- either.
-
- Remember... that disk drive has a 6502 in it that's just as fast as the one
- in your 64. Just shove clocked data to it, and let a program in the 1541
- figure out what to do with it! (And all in 2K... fun, fun!)
-
- >It may indeed prove to be an impossible task on that hardware.
-
- No, it isn't. It's just very difficult and time consuming, and at this point
- in the C-64's lifespan, the only people who are going to do it are those who
- don't expect any monetary gain from such a project. It ZModem had been as
- popular as it is today in 1985, I have no doubt that some terminal programs
- would have supported it.
-
- Heck, it C-64's were still as popular today as they were in 1985, I bet you
- could do a GEOTerm that supported ZModem. Go figure...
-
- ---Joel Kolstad
-
-