| |
6R6
Registered: Feb 2002
Posts: 245 |
Disabling AR freeze button
Is it possible to disable the Action
Replay freeze function 100% ?
In that case, please enlighten me... :)
|
|
... 83 posts hidden. Click here to view all posts....
|
| |
chatGPZ
Registered: Dec 2001
Posts: 11386 |
yes and no. the problem isnt so much that g64 can not represent the disk - it can for the most part. the problem is that the conversion from raw data to g64 is a process that is close to impossible to do automatically (in a 100% generic way) |
| |
Krill
Registered: Apr 2002
Posts: 2980 |
It can if you fold knowledge of the protection's expectations into the data distilled to G64 (as that mapping is ambiguous). No such knowledge is required for raw images. |
| |
chatGPZ
Registered: Dec 2001
Posts: 11386 |
yesyes. thats what i am saying - you need to analyze (and basically "crack") the protection to make a working g64 |
| |
Krill
Registered: Apr 2002
Posts: 2980 |
So... make all damn emulators work with raw images, it's not like we don't have the storage or RAM space. :) |
| |
chatGPZ
Registered: Dec 2001
Posts: 11386 |
VICE has support for it, so does micro64 (p64) - but as said, since almost nothing requires it, its not really tested, and probably has bugs :=) (hoxs64 also has support for some kind of raw images, but no idea if our how that works).
for something like 1541U the size of the image is actually still a problem (it must fit into the ram completely, and non compressed) |
| |
Krill
Registered: Apr 2002
Posts: 2980 |
One would think that they compress rather well, with a simple algorithm which allows for efficient on-the-fly decoding in hardware... :) |
| |
chatGPZ
Registered: Dec 2001
Posts: 11386 |
that just cant be done, you need a raw bitstream - else you cant implement writing in any practical way. you also want to be able to "rotate" all tracks in perfect sync, which also rules out compression. |
| |
Krill
Registered: Apr 2002
Posts: 2980 |
Being restricted to mounting an image read-only isn't such a bad thing, especially with protected commercial software. As for the other drawback, i'm sceptical. Indices have been invented. :) |
| |
chatGPZ
Registered: Dec 2001
Posts: 11386 |
in the worst case you'd have to decompress an entire track at once. that kind of thing just doesnt work in hardware. |
| |
Krill
Registered: Apr 2002
Posts: 2980 |
I was thinking of on-the-fly RLE decompression or Huffman or something along those lines. Can be indexed for quasi-random access and aligned rotation. No need to decompress entire tracks. |
| Previous - 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 - Next |
