file "filename"

Basil

Hi All,

I seem to be bombarding this board with questions recently...

Anywho, In my application I used to have a bunch of previously recorded samples stored in the data section in the following format

byte 202,201,202,202,202,202,202,202 etc etc

When compiled, the program had 2972 longs free.

When I take all that data out ond put it into a txt file, then use the 'file' instruction in the dat section, I only get 618longs free when complied.

Am I formating my txt file incorrectly? I have removed all the spaces, new lines and comma's so its just a huge line of numbers.

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-Alec

My our page

hippy

If you're storing the data in the file as text then that's where your bloat and reduction of free RAM is coming from.

The compiler converts "byte 202" into just one byte. In text that's three bytes "2", "0" and "2". You'll need to find a means to convert your text into a set of bytes, one byte per number.

Basil

Oooo nasty.

What if I were to store it as binary? Or would that be a string of binary? Ie "1""0""0""1""1" etc?

How do I store it as hex or binary directly in a file?

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-Alec

My our page

Mike Green

It's not easy. You have to find a program for your PC that will let you edit the file as individual bytes, as numbers from 0-255.

You can also write your own program that will read a sequence of numbers ranging from 0 to 255 and write each number out as a byte
to a file.

The easiest thing to do is to let the Propeller Tool do it and just use the BYTE statement the way you started out.

Basil

Ok lol, thats alot of scrolling.

Is there I way I can do something like

In the main program object section...

OBJ
Data : "Data.spin"

and in Data.spin, only have:

DAT

byte 123,234,23,45,56,45 etc

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-Alec

My our page

jazzed

Maybe you can use the old DOS debug command from the command line window? If you need it bad enough, I could quickly create a DOS program for you to display ascii-hex or whateverfrom a binary file; You must be very clear about your input/output needs though. (sorry I deleted the other post as I thought it might have been irrelevant).

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--Steve

Ariba

Basil

You can use PropTool to generate a Binary from your text-datas! Write a spin source like this:

PUB dummy
DAT
  byte 201,202,202,203
  'and so on

You can compile such an "object" with F8 and then save as binary. You get the data as a binary with a little overhead at begin.
Now you can include this binary with the FILE command in an other object. Your data start at the 24th byte in the produced binary, so you have to take that into account.

PUB Main  | i,d
  repeat i from 0 to 9    'read first 10 bytes of table
    d := table[noparse][[/noparse]i+24]

DAT
table   file "yourbinary.binary"

Andy

hippy

Basil said...
Ok lol, thats alot of scrolling.

Is there I way I can do something like

In the main program object section...

OBJ
Data : "Data.spin"

and in Data.spin, only have:

DAT

byte 123,234,23,45,56,45 etc

Yes, but you'll need a "PUB" at the top to get it to compile and you'll need a PUB anyway so you can return the address of where the data starts to your higher-up program ...

PUB GetAddressOfData
  return @MyData
DAT
MyData byte 202,201,203 ...

To access the data from the higher program ( untested ) ...

PUB ShowFirstTenItemsOfData | ptr
  ptr := dataObject.GetAddressOfData
  repeat 10
    tv.Dec( byte[noparse][[/noparse] ptr ] )
    tv.Out( $0D )
    ptr++

Basil

Hmmmm. Thanks for those suggestions. That would probably do for the time being. This is just a temporary fix to test my flight algorithms. Once its all tested I wont be using any data files at all [noparse]:)[/noparse]

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-Alec

My our page