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Groups > comp.sys.apple2 > #25214

Re: FloppyEmu now supports 800K disk emulation

Newsgroups comp.sys.apple2
Date 2015-07-08 05:43 -0700
References (1 earlier) <D1BB5603.1142A%hughhood@earthlink.net> <13744aba-8c0c-47ae-9dd3-b93846b2892c@googlegroups.com> <D1C1518B.2EF33%hughhood@earthlink.net> <129e81ae-a0b2-403f-866c-6608207eb155@googlegroups.com> <mni4ke$il7$1@dont-email.me>
Message-ID <ce83eeb6-417b-4053-8bc1-e2e8db3ec473@googlegroups.com> (permalink)
Subject Re: FloppyEmu now supports 800K disk emulation
From mdj <mdj.mdj@gmail.com>

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On Wednesday, 8 July 2015 13:16:52 UTC+10, Christopher G. Mason  wrote:
> On 7/7/2015 7:45 PM, Steve Chamberlin wrote:
> > Unfortunately not, as there's no battery to maintain time when the power is off. I'm not sure the IIc/IIc+ would expect to get time info from a disk drive anyway?
> 
> The Smartport protocol supports character based devices. Clock support 
> would be implemented that way.

That seems like the only practical way to do it. On the IIc (and perhaps the Liron card as well) you can even trigger an interrupt. There ought to be sufficient room to load a clock driver in ProDOS that issues a SmartPort character read.

Regarding the ProDOS "menu" program, it would be possible to use the character device interface to implement this with the Apple II side being nothing more than a trivial terminal - all the 'hard work' could then be done on the FloppyEmu side.

NB - I never did figure out what the point of the SmartPort character interface actually was ... It would provide approximately twice the bandwidth of the effective limit of a 6551 (That the IIc already has two of). Perhaps this is what the never-completed AppleTalk firmware was supposed to use. Did prototype IIc AppleTalk adapters ever make it out of Cupertino ?

Matt

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Thread

FloppyEmu now supports 800K disk emulation pitz <pitz.wong@gmail.com> - 2015-04-06 12:56 -0700
  Re: FloppyEmu now supports 800K disk emulation "Bill Garber" <willy46pa@comcast.net> - 2015-04-06 17:55 -0400
  Re: FloppyEmu now supports 800K disk emulation Hugh Hood <hughhood@earthlink.net> - 2015-07-02 20:56 -0500
    Re: FloppyEmu now supports 800K disk emulation Steven Hirsch <snhirsch@gmail.com> - 2015-07-03 09:17 -0400
    Re: FloppyEmu now supports 800K disk emulation Gary Gray <vengefultacos@gmail.com> - 2015-07-03 15:54 -0400
      Re: FloppyEmu now supports 800K disk emulation Hugh Hood <hughhood@earthlink.net> - 2015-07-04 11:01 -0500
        Re: FloppyEmu now supports 800K disk emulation Gary Gray <vengefultacos@gmail.com> - 2015-07-04 17:25 -0400
          Re: FloppyEmu now supports 800K disk emulation Steve Chamberlin <steve.chamberlin@gmail.com> - 2015-07-13 14:16 -0700
            Re: FloppyEmu now supports 800K disk emulation TheJ <thej@shaw.ca> - 2015-07-13 22:36 +0000
    Re: FloppyEmu now supports 800K disk emulation Steve Chamberlin <steve.chamberlin@gmail.com> - 2015-07-06 17:06 -0700
      Re: FloppyEmu now supports 800K disk emulation Hugh Hood <hughhood@earthlink.net> - 2015-07-07 09:51 -0500
        Re: FloppyEmu now supports 800K disk emulation Michael J. Mahon <mjmahon@aol.com> - 2015-07-07 15:32 -0500
        Re: FloppyEmu now supports 800K disk emulation Steve Chamberlin <steve.chamberlin@gmail.com> - 2015-07-07 16:45 -0700
          Re: FloppyEmu now supports 800K disk emulation roughana <andrew.roughan@writeme.com> - 2015-07-07 18:49 -0700
            Re: FloppyEmu now supports 800K disk emulation "Christopher G. Mason" <cgm1@my-deja.com> - 2015-07-07 23:19 -0400
            Re: FloppyEmu now supports 800K disk emulation Steve Chamberlin <steve.chamberlin@gmail.com> - 2015-07-08 10:17 -0700
              Re: FloppyEmu now supports 800K disk emulation Steven Hirsch <snhirsch@gmail.com> - 2015-07-08 21:53 -0400
                Re: FloppyEmu now supports 800K disk emulation Steve Chamberlin <steve.chamberlin@gmail.com> - 2015-07-08 20:29 -0700
                Re: FloppyEmu now supports 800K disk emulation RJ <moddkid@gmail.com> - 2015-07-20 11:31 +0000
                Re: FloppyEmu now supports 800K disk emulation Steve Chamberlin <steve.chamberlin@gmail.com> - 2015-07-20 07:20 -0700
                Re: FloppyEmu now supports 800K disk emulation Steve Chamberlin <steve.chamberlin@gmail.com> - 2015-07-20 09:26 -0700
                Re: FloppyEmu now supports 800K disk emulation RJ <moddkid@gmail.com> - 2015-07-21 11:46 +0000
                Re: FloppyEmu now supports 800K disk emulation Steve Chamberlin <steve.chamberlin@gmail.com> - 2015-07-21 08:36 -0700
          Re: FloppyEmu now supports 800K disk emulation "Christopher G. Mason" <cgm1@my-deja.com> - 2015-07-07 23:16 -0400
            Re: FloppyEmu now supports 800K disk emulation mdj <mdj.mdj@gmail.com> - 2015-07-08 05:43 -0700
        Re: FloppyEmu now supports 800K disk emulation TheJ <thej@shaw.ca> - 2015-07-08 15:57 +0000
        Re: FloppyEmu now supports 800K disk emulation Sean Fahey <a2fan@hotmail.com> - 2015-07-08 09:12 -0700
          Re: FloppyEmu now supports 800K disk emulation Hugh Hood <hughhood@earthlink.net> - 2015-07-09 09:00 -0500
    Re: FloppyEmu now supports 800K disk emulation Warren Ernst <wernst@gmail.com> - 2015-07-08 10:34 -0700
      Re: FloppyEmu now supports 800K disk emulation TheJ <thej@shaw.ca> - 2015-07-08 17:56 +0000

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