[Coco] Cross Post from FB Page..Disk Basic Programming Question...
Steve Batson
steve_batson at yahoo.com
Thu Aug 6 18:55:10 EDT 2015
Changing the 5 to 2 in lines 10,20 and 50 allowed it to write the file and makes sense looking at some info for the Disk System.
I got this working and I think this sets the stage for several of the things I have in mind. Thanks!!
On Aug 6, 2015, at 3:33 PM, Christopher R. Hawks <chawks at dls.net> wrote:
> On Thu, 6 Aug 2015 15:20:30 -0700
> Steve Batson via Coco <coco at maltedmedia.com> wrote:
>
>> Changing the "I" to "O" in line ten makes sense, but that line
>> produces a DN Error. :/
>
> My DECB is really rusty, but, I think the open command
> should be:
> 10 OPEN "I",#5,"DIRFILE.TXT"
>
> Like the close command is...
>
>> On Aug 6, 2015, at 3:07 PM, Arthur Flexser <flexser at fiu.edu> wrote:
>>
>>> Should be OPEN "O" (output) not "I".
>>>
>>> Art
>>>
>>> On Thu, Aug 6, 2015 at 6:06 PM, Arthur Flexser <flexser at fiu.edu>
>>> wrote:
>>>
>>>> It would be something like
>>>>
>>>> 10 OPEN "I",5,"DIRFILE.TXT"
>>>> 20 POKE &H6F,5
>>>> 30 DIR 1
>>>> 40 POKE&H6F,0
>>>> 50 CLOSE #5
>>>>
>>>> Art
>>>>
>>>>
>>>> On Thu, Aug 6, 2015 at 5:59 PM, Steve Batson via Coco <
>>>> coco at maltedmedia.com> wrote:
>>>>
>>>>> Art,
>>>>>
>>>>> Can you show a simple example of this?
>>>>>
>>>>> Here’s a psuedo code for what I would want to do.
>>>>>
>>>>> 10 Turn On Redirection of screen text to array/file
>>>>> 20 DIR 1
>>>>> 30 Turn Off Redirection
>>>>> 40 Parse captured data
>>>>> 50 Selectively Display the parsed data in new format
>>>>>
>>>>> My interest is Lines 10-30, I can figure out the parsing and
>>>>> display of parsed data. Also please don't direct me to basic
>>>>> commands for directly reading the disk by tracks and sectors. I
>>>>> understand how to do that but it won't do what I'm looking for
>>>>> and I may want to use this for things beyond DIR listings.
>>>>> On Aug 6, 2015, at 2:49 PM, Arthur Flexser <flexser at fiu.edu>
>>>>> wrote:
>>>>>
>>>>>> You could try opening the disk file with a certain device number
>>>>> assigned
>>>>>> to it and then poke that device number into location $6F
>>>>>> immediately
>>>>> before
>>>>>> doing the LLIST or DIR (restoring the device number to zero
>>>>>> afterwards)
>>>>> and
>>>>>> see if that works for getting the output into the disk file.
>>>>>>
>>>>>> Art
>>>>>>
>>>>>> On Thu, Aug 6, 2015 at 5:35 PM, Steve Batson via Coco <
>>>>> coco at maltedmedia.com>
>>>>>> wrote:
>>>>>>
>>>>>>>
>>>>>>> Art,
>>>>>>>
>>>>>>> I was asked for clarification of my question on the FB page and
>>>>>>> your question confirms I was not very clear.
>>>>>>>
>>>>>>> I want to be able programmatically start capturing anything
>>>>>>> that is
>>>>> going
>>>>>>> to the screen to a file. My interest is only text, so no worry
>>>>>>> about
>>>>> about
>>>>>>> graphics. So lets say I wanted my program to do a DIR or LIST
>>>>>>> command,
>>>>> I'd
>>>>>>> like send all of the screen output from those commands to a
>>>>>>> file. If
>>>>> not a
>>>>>>> a file, to an array (which probably is the better approach
>>>>>>> since the
>>>>> data
>>>>>>> could be parsed and cleaned up before storing in a file). I'd
>>>>>>> take
>>>>> either.
>>>>>>> Does this make sense?
>>>>>>>
>>>>>>> To add to that, I'd want to have this work in standard Disk
>>>>>>> Basic including Assembly if necessary. I would want to portable
>>>>>>> between CoCo
>>>>> so
>>>>>>> I'm not having to worry about ADOS or other custom dos
>>>>>>> installed.
>>>>>>>
>>>>>>>
>>>>>>> On Aug 6, 2015, at 2:12 PM, Arthur Flexser <flexser at fiu.edu>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> Do you mean something like a log file that contains both what
>>>>>>>> you
>>>>> type to
>>>>>>>> the CoCo and whatever the CoCo puts on the screen in response?
>>>>>>>>
>>>>>>>> I don't think there's an easy way to do that from Basic,
>>>>>>>> though it shouldn't be too difficult to do with an assembly
>>>>>>>> language patch to
>>>>>>> Basic.
>>>>>>>> You'd want to change the unit number of where the output is
>>>>>>>> going from
>>>>>>> unit
>>>>>>>> #0 (the screen) to the one you've assigned to the disk file.
>>>>> Actually, a
>>>>>>>> simple redirect like that would prevent the output from going
>>>>>>>> to the screen, so you'd probably want to output an additional
>>>>>>>> copy to the
>>>>> disk
>>>>>>>> file of whatever is sent to the screen.
>>>>>>>>
>>>>>>>> There's a feature similar to this in ADOS (the PRT ON/PRT OFF
>>>>> command),
>>>>>>>> except that it sends everything to the printer instead of to a
>>>>>>>> disk
>>>>> file.
>>>>>>>> If that would do for your purposes, you could download ADOS
>>>>>>>> (ADOS-3
>>>>> for
>>>>>>> the
>>>>>>>> CoCo 3) and boot it up from disk.
>>>>>>>>
>>>>>>>> Art
>>>>>>>>
>>>>>>>> On Thu, Aug 6, 2015 at 4:12 PM, Steve Batson via Coco <
>>>>>>> coco at maltedmedia.com>
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>>>
>>>>>>>>> CoCo Disk BASIC programming question.
>>>>>>>>> Is there a simple way in Disk BASIC to open a disk file and
>>>>>>>>> then send anything following that command to a Disk File or
>>>>>>>>> an Array from the
>>>>>>> screen
>>>>>>>>> and then stop once the data has been collected?
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> Coco mailing list
>>>>>>>>> Coco at maltedmedia.com
>>>>>>>>> https://pairlist5.pair.net/mailman/listinfo/coco
>>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> Coco mailing list
>>>>>>>> Coco at maltedmedia.com
>>>>>>>> https://pairlist5.pair.net/mailman/listinfo/coco
>>>>>>> I want to be able programmatically start capturing anything
>>>>>>> that is
>>>>> going
>>>>>>> to the screen to a file. My interest is only text, so no worry
>>>>>>> about
>>>>> about
>>>>>>> graphics. So lets say I wanted my program to do a DIR or LIST
>>>>>>> command,
>>>>> I'd
>>>>>>> like send all of the screen output from those commands to a
>>>>>>> file. If
>>>>> not a
>>>>>>> a file, to an array (which probably is the better approach
>>>>>>> since the
>>>>> data
>>>>>>> could be parsed and cleaned up before storing in a file). I'd
>>>>>>> take
>>>>> either.
>>>>>>> Does this make sense?
>>>>>>>
>>>>>>> --
>>>>>>> Coco mailing list
>>>>>>> Coco at maltedmedia.com
>>>>>>> https://pairlist5.pair.net/mailman/listinfo/coco
>>>>>>>
>>>>>>
>>>>>> --
>>>>>> Coco mailing list
>>>>>> Coco at maltedmedia.com
>>>>>> https://pairlist5.pair.net/mailman/listinfo/coco
>>>>>
>>>>>
>>>>> --
>>>>> Coco mailing list
>>>>> Coco at maltedmedia.com
>>>>> https://pairlist5.pair.net/mailman/listinfo/coco
>>>>>
>>>>
>>>>
>>>
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>>
>>
>
>
>
>
> Christopher R. Hawks
> HAWKSoft
> --
> Why can they never grasp the obvious? Why do they have to generate
> bizarre failure-conspiracy-theories involving the Illuminati, the cheese
> sandwich they had for lunch last week and the phase of the moon?
> -- Chris Richardson
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