Somewhat off topic I know.
A mate of mine has a number of 3 disks containing documents created by
Locoscript on a CP/M machine.
He can copy these to CP/M 3.5 (720K) floppies but then needs (wants) to
transfer them to a PC. Probably running Linux but widows is not out of
the question.
As
Ok, providing I havent made any mistakes on the compressor it looks like
the sizes are down at:
1: 256 x 141 : 4416
2: 256 x 141 : 5613
3: 256 x 192 : 9103
4: 256 x 192 : 8594
5: 256 x 192 : 10103
Ill write the decompressor and check, depends how slow it is to
decompress i guess ;)
Oh one thing ive found out that may help in your tests. Dont compress
the data as nibble pairs. If you convert the data into bytes (only
using values 0 - 15) then compress that. (obviously in the decompressor
you need to patch it back so two bytes become one nibble). You may find
you get a much
SIM coupe can read the 720kb disks running Pro-dos.
They could saved out a CF record or dsk image using Atom Lite Pro-dos.
See http://www.samcoupe-pro-dos.co.uk/whatis_alpd.html
Steve.
-Original Message-
From: owner-sam-us...@nvg.ntnu.no [mailto:owner-sam-us...@nvg.ntnu.no] On
Behalf
Sadly I'm already doing that and still doing a lot worse than you. At
this point I'd definitely suggest that if you're willing to donate
code then it be used over anything I can come up with.
I'm still trying though!
On Sat, Jul 31, 2010 at 1:23 PM, Adrian Brown
adr...@apbcomputerservices.co.uk
Oh, but for the record, with what I think is a completely straight
reimplementation of PNG that isn't particularly intelligent in
searching for the smallest size:
1: 256 x 141 : 5190 (774 bytes worse than you)
2: 256 x 141 : 6439 (826 bytes worse)
3: 256 x 192 : 10041 (938 bytes worse)
4: 256 x
Oh, but wait! Enabling searching for the best LZ77 window and pattern
size (just in terms of 4 bits, 8 bits, 12 bits or 16 bits — not a
completely free search) seems to put me at:
1: 256 x 141 : 4593
2: 256 x 141 : 5731
3: 256 x 192 : 8520
4: 256 x 192 : 8267
5: 256 x 192 : 9440
Currently a
Yer - yours is probably a little better then, the flashback screens are more
what you want to look at. Ill play around a little more.
Adrian
-Original Message-
From: owner-sam-us...@nvg.ntnu.no [mailto:owner-sam-us...@nvg.ntnu.no] On
Behalf Of Thomas Harte
Sent: 31 July 2010 14:31
To:
Could it be the simple fact that I'm sorting the palette by hue to try
to make the numeric predictor more likely to be helpful? Ordering
obviously makes a difference, but there isn't time to try all of the
16! possibilities so that's my current guess. Another way through
might be to build some
