Re: A85: Text editor with compression??
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Re: A85: Text editor with compression??
I always thought it would be cool to have a shell with built in
compression. it could compress and decompress any string file
(including executables). there probably wouldn't be much space saving
in compressing an executable string though.
-mike pearce
On Mon, 13 Jul 1998 20:44:32 +0300 (EET DST), you wrote:
>
>I've had a great idea of creating quite sophisticated text editor for 85.
>One of it's great?? features would be compression. What do you think of it?
>Would it be worth it? I thought about adaptive huffman being the compressing
>method. The compression is a bit difficult, since to only compress lowest
>127 characters needs temporary memory about 760 bytes (I don't remember
>exact, it's not important), and if one would like to extend it to be able to
>compress all 256 characters, memory needed for that might be almost 2kB!! I
>had another idea to use somekind of static huffman using a constant tree for
>everything, (i.e. the (de)compression tree would be stored inside the
>program). Anyway, when using compression or not, editing would be fastest
>when the whole text is stored in the same way as the ROM does for homescreen
>input (which means having free memory of size of the text...). BTW. How does
>the ROM store the homescreen input? (I don't know excactly :) Well anyway, I
>hope you get the idea? Just mail more ideas, suggestions! I would appreciate it!
>
>Henri Moilanen
>
>
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