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Forum: support.Games 16 October 2021, 12:25
Replies: 35
Views: 1,362
Posted By ross
To clarify. All 'boot' disks are identical and...

To clarify.
All 'boot' disks are identical and contain a small intro/loader and the encrypted main(s*) program (so the crack must be there!).
Scenario disks contain only data, (saved) high-score...
Forum: support.Games 15 October 2021, 12:34
Replies: 35
Views: 1,362
Posted By ross
As you can guess for the crack I simply skipped...

As you can guess for the crack I simply skipped the check on the protection track :)
There are no game checksums on the control code, which once decrypted is completely skipable (although there is a...
Forum: support.Games 15 October 2021, 12:16
Replies: 35
Views: 1,362
Posted By ross
I have only checked from cylinder 2 onwards,...

I have only checked from cylinder 2 onwards, where the scenario game data is, it is probably just to update the slave for track 0.
But there is nothing significant on cylinders 0 and 1, apart from...
Forum: support.Games 15 October 2021, 11:47
Replies: 35
Views: 1,362
Posted By ross
Confirmed. Scenario disks are the same as IPF...

Confirmed.
Scenario disks are the same as IPF #610 and #800, first disk the same on both.

It can be seen that the duplication machine used was not the same because the length of the cells is...
Forum: support.Games 14 October 2021, 12:31
Replies: 35
Views: 1,362
Posted By ross
Maybe it's the right time to sort out the various...

Maybe it's the right time to sort out the various versions (which are probably a single one, the usual v1.02).
If the disks are in good condition, a comparison can be made with the available IPFs...
Forum: support.Games 13 October 2021, 22:18
Replies: 35
Views: 1,362
Posted By ross
Could be.. But they could have done it better.....

Could be..
But they could have done it better.. I checked, in disk 2 those "new" ADOS sectors with different data are in fact corrupt.
Forum: support.Games 13 October 2021, 21:58
Replies: 35
Views: 1,362
Posted By ross
No idea why your 'original' is in this condition,...

No idea why your 'original' is in this condition, but I assure you that is a cracked version.

Also, the second disk isn't exactly like the HQC one (very similar but wrong audio data in a sector?),...
Forum: support.Games 13 October 2021, 21:02
Replies: 35
Views: 1,362
Posted By ross
This is a tampered version. It contains the...

This is a tampered version.
It contains the Blizzard crack (with intro removed) and the HQC's ADOSed 2nd disk.
Forum: Coders. Asm / Hardware 12 October 2021, 21:28
Replies: 16
Views: 778
Posted By ross
Short answer: no :)

Short answer: no :)
Forum: support.Games 12 October 2021, 19:15
Replies: 35
Views: 1,362
Posted By ross
To tell you the truth it's just to try the...

To tell you the truth it's just to try the "cylinder compressor".
Let's see if anything decent comes up ;)

:great
Forum: support.Games 12 October 2021, 19:03
Replies: 35
Views: 1,362
Posted By ross
Maybe it could be the right time that I fix this...

Maybe it could be the right time that I fix this game for a one-disk version (it is another one that I started and never finished...).

The file system is really wasteful, with its 8192 bytes per...
Forum: Coders. Asm / Hardware 10 October 2021, 12:26
Replies: 61
Views: 4,822
Posted By ross
Yes, and you could probably also reinsert (some?)...

Yes, and you could probably also reinsert (some?) 'deleted' modules from the CosoPack.
However, you must remove the support for LZ4 and replace the pre-compressed ones always with ZX0.
I don't...
Forum: support.Games 09 October 2021, 16:01
Replies: 9
Views: 692
Posted By ross
Dragons of Flame patched into the Zone! ...

Dragons of Flame patched into the Zone!

Contains fixes for 1MB chip-ram machines, KS3.1 and 010+ processors.

Started as always with a simple patch due to a stupid way of allocating memory, only...
Forum: Retrogaming General Discussion 09 October 2021, 01:32
Replies: 25
Views: 1,608
Posted By ross
:bash :sleep

:bash





:sleep
Forum: Retrogaming General Discussion 08 October 2021, 20:52
Replies: 25
Views: 1,608
Posted By ross
Even if you are jealous there is no need to cry :p

Even if you are jealous there is no need to cry :p
Forum: Retrogaming General Discussion 08 October 2021, 16:38
Replies: 25
Views: 1,608
Posted By ross
The problem is only partially the kickstart, or...

The problem is only partially the kickstart, or at least not directly (so much so that the original version works with 512+512 and KS1.x).
There are issues related to memory management, in the...
Forum: Retrogaming General Discussion 07 October 2021, 12:25
Replies: 25
Views: 1,608
Posted By ross
Finally uploaded to the Zone! It wasn't easy...

Finally uploaded to the Zone!

It wasn't easy at all as there were several details that prevented it from working properly in different combinations of KS and memory
(there was a reason why some...
Forum: Coders. Asm / Hardware 06 October 2021, 18:10
Replies: 61
Views: 4,822
Posted By ross
The bitcode is quite 'stable' now. You have...

The bitcode is quite 'stable' now.

You have a PM :)
Forum: Coders. Asm / Hardware 06 October 2021, 14:41
Replies: 61
Views: 4,822
Posted By ross
Einar pointed me out to his new experimental ZX...

Einar pointed me out to his new experimental ZX family compressor, ZX5.
Thanks, :great

Basically it extend the rep-match concept to the last three offset (like LZX).
"..ZX5 compressor is very...
Forum: Coders. Asm / Hardware 06 October 2021, 11:29
Replies: 14
Views: 1,965
Posted By ross
This value seems wrong.. Did you reversed the...

This value seems wrong.. Did you reversed the bits?
Forum: Coders. General 06 October 2021, 10:16
Replies: 4
Views: 581
Posted By ross
hmm, it's probably a lot simpler than you think. ...

hmm, it's probably a lot simpler than you think.
In practice, nothing happens on the screen that is not preset.

I would do it like this:
Dual playfield, copper per line for separate scroll and...
Forum: support.Hardware 04 October 2021, 10:51
Replies: 4
Views: 366
Posted By ross
A 3.5Mhz memory bus is more than enough for 0...

A 3.5Mhz memory bus is more than enough for 0 wait states on 7Mhz 68000.

And due to the way in which 68k accesses memory, sharing it halfway with 'another' involves practically no loss in speed....
Forum: Retrogaming General Discussion 04 October 2021, 09:38
Replies: 25
Views: 1,608
Posted By ross
I have now a version that needs only one megabyte...

I have now a version that needs only one megabyte in every possible configuration, I will add a working trainer.

The game has quite stringent demands on memory (both in quantity and in...
Forum: Retrogaming General Discussion 03 October 2021, 20:31
Replies: 25
Views: 1,608
Posted By ross
As these issues are recurring for Mega-Typhoon...

As these issues are recurring for Mega-Typhoon (problems on many configurations, problems with trainer), I'm working on it to try to fix everything..
Forum: Coders. Asm / Hardware 02 October 2021, 20:49
Replies: 61
Views: 4,822
Posted By ross
Maybe.. Times grow quasi-exponentially...

Maybe..


Times grow quasi-exponentially with file size.

I'll give you some examples.
CosoPackxxx.bin is made up of more than a hundred small files, ranging in size from 1 to 15KiB....
Forum: Coders. Asm / Hardware 02 October 2021, 19:14
Replies: 61
Views: 4,822
Posted By ross
Ok, it took me a while because I wanted to...

Ok, it took me a while because I wanted to reconstruct the situation as similar as possible to the original: same initial table with positioning, same order of files, same 'empty spaces' for...
Forum: Coders. Asm / Hardware 02 October 2021, 18:19
Replies: 58
Views: 3,663
Posted By ross
You are lucky, h=0 equals 1024(*x) so it is the...

You are lucky, h=0 equals 1024(*x) so it is the max usable value :)
Forum: support.Hardware 29 September 2021, 18:33
Replies: 19
Views: 4,575
Posted By ross
I can think of two ways to have a higher...

I can think of two ways to have a higher frequency in PAL using the copper with a synchronized writing per line (therefore usable also for a normal display without having to rebuild the copper list...
Forum: Coders. Asm / Hardware 29 September 2021, 15:21
Replies: 61
Views: 4,822
Posted By ross
Ok, time for a significative test with the...

Ok, time for a significative test with the 'alternative' ZX0:

ZX0 v2.1a: Optimal data compressor by Einar Saukas
alternative encoding by ross, beta version
Usage: ZX0.exe [-f] [-c] [-b] [-a]...
Forum: Coders. Asm / Hardware 28 September 2021, 14:01
Replies: 1
Views: 446
Posted By ross
Sure, but you have to use copper to change...

Sure, but you have to use copper to change pointers at the exact line(s) (this implies that the position data in the first words must have a height of 72).
Forum: Coders. Asm / Hardware 23 September 2021, 19:29
Replies: 61
Views: 4,822
Posted By ross
To tell the truth in this test ZX0 is very much...

To tell the truth in this test ZX0 is very much at an advantage because the file contains a considerable amount of LZ match (but in any case it is significant for comparison with other pure LZs!)....
Forum: Coders. Asm / Hardware 23 September 2021, 10:23
Replies: 61
Views: 4,822
Posted By ross
The real strength of this compressor is in fact...

The real strength of this compressor is in fact the extensive use of the rep-match, indeed, it is practically completely designed around it
(while in other compressors it is a secondary factor).
I...
Forum: Coders. Asm / Hardware 22 September 2021, 22:37
Replies: 61
Views: 4,822
Posted By ross
WOW. First test with enhanced offset. This...

WOW.
First test with enhanced offset.
This forcibily require my unpacker, the official one doesn't/can't support offset >32KiB.
I used an offset of 100KB, but theoretically in can work until 16MiB...
Forum: Coders. Asm / Hardware 22 September 2021, 17:27
Replies: 61
Views: 4,822
Posted By ross
Ok, now I've a working packer and unpacker for...

Ok, now I've a working packer and unpacker for the 'new' ZX0 stream, optimized and friendly to 68k.

I've tested it with the github mentioned "cobra.scr" (a little file of 6912 bytes, packed to...
Forum: Coders. Asm / Hardware 22 September 2021, 11:01
Replies: 5
Views: 734
Posted By ross
Just some clarifications regarding the maximum...

Just some clarifications regarding the maximum overscan for PAL (the horizontal part is also valid for NTSC).

All the values that I report are seen from the Amiga side, that is the real pixels...
Forum: Coders. Asm / Hardware 21 September 2021, 11:50
Replies: 5
Views: 734
Posted By ross
Total number of scanlines in NTSC is 262 for ...

Total number of scanlines in NTSC is 262 for short frames and 263 for long frames.
So in interlace you have a total of 525 lines.
In Amiga, long frames are normally used for progressive mode.
...
Forum: Coders. Asm / Hardware 17 September 2021, 17:47
Replies: 61
Views: 4,822
Posted By ross
More code unrollolled, more accelerated paths,...

More code unrollolled, more accelerated paths, now I'm near 150 bytes.
Maybe time to stop, I'm at short branches limit.

And I haven't tried with a synthetic stream yet, so nothing might work :)...
Forum: Coders. Asm / Hardware 17 September 2021, 16:21
Replies: 62
Views: 3,009
Posted By ross
This *should* work because ColdReboot do not...

This *should* work because ColdReboot do not seems to read execbase but trust the passed A6, anyway it is probably unsupported.
(EDIT: it internally calls system functions for the caches, supervisor...
Forum: Coders. Asm / Hardware 17 September 2021, 08:29
Replies: 62
Views: 3,009
Posted By ross
You have to choose what to trust. The one I...

You have to choose what to trust.
The one I think is absolutely the least sensitive to a patch is Supervisor() (still someone has to explain to me why a malicious software should patch it without...
Forum: Coders. Asm / Hardware 16 September 2021, 20:44
Replies: 61
Views: 4,822
Posted By ross
Ok, new provisional bitcode defined (EDIT: AZX0?,...

Ok, new provisional bitcode defined (EDIT: AZX0?, name to be defined :)).

The unpacker code is 120 bytes with no subroutines (is unrolled as much as possible) and contains some accelerators, fully...
Showing results 1 to 40 of 3504

 
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