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Forum: support.Games Yesterday, 13:58
Replies: 73
Views: 7,513
Posted By ross
Well, so there evidence that a start from the...

Well, so there evidence that a start from the center zone is acceptable.

Here's what I've fixed:
- Level 12
- AGA, KS30+ 'incompatible' copper list
- 020+ fixed (cache due to smc and bad stack...
Forum: support.Games 20 May 2018, 23:48
Replies: 73
Views: 7,513
Posted By ross
It would take a volunteer to check the c64...

It would take a volunteer to check the c64 version..

For now I set the starting point in the middle of the screen.
I wait until tomorrow and then release it this way if we do not have more...
Forum: support.Games 19 May 2018, 20:09
Replies: 73
Views: 7,513
Posted By ross
Ok, even if there is various depack stages, patch...

Ok, even if there is various depack stages, patch is simple (I make sure that my code be injected by the original crack :))

I will fix also the bad exit (garbage on screen) from trainer menu.
...
Forum: support.Games 19 May 2018, 18:45
Replies: 73
Views: 7,513
Posted By ross
A specific initial position is required?

A specific initial position is required?
Forum: Nostalgia & memories 17 May 2018, 17:43
Replies: 28
Views: 1,045
Posted By ross
Yeah, I know and appreciate very much Planet...

Yeah, I know and appreciate very much Planet Rocklobster.

I had never looked before at the techniques used in this rotozoom, intriguing code that does double shear, scaling and some blitter/copper...
Forum: Nostalgia & memories 16 May 2018, 21:06
Replies: 28
Views: 1,045
Posted By ross
Yes, I remember that on machines earlier than a...

Yes, I remember that on machines earlier than a 486DX2 there were slowdowns here and there.

But talking about full screen rotator on Amiga.. Sanity demos contain some great near full screen effect...
Forum: Coders. Asm / Hardware 16 May 2018, 20:34
Replies: 14
Views: 946
Posted By ross
Ok, I looked for. It's only a snippet from a...

Ok, I looked for.
It's only a snippet from a bigger startup code but the relevant WB startup part is here:


movea.l $4.w,a6
movea.l ThisTask(a6),a5
tst.l pr_CLI(a5) ; test if CLI...
Forum: Coders. Asm / Hardware 16 May 2018, 20:20
Replies: 14
Views: 946
Posted By ross
Problem here is that you need some Workbench...

Problem here is that you need some Workbench startup code, see:
http://amigadev.elowar.com/read/ADCD_2.1/Libraries_Manual_guide/node0248.html

You can google for an asm version, i've mine but too...
Forum: Coders. Asm / Hardware 14 May 2018, 10:06
Replies: 6
Views: 290
Posted By ross
Never interested (but I had seen him in the list...

Never interested (but I had seen him in the list of available) at this hunk.
Can be useful to make more compact 020+ code (freeing some structured data).
Thank you for highlighting its existence :)...
Forum: Coders. Asm / Hardware 14 May 2018, 09:36
Replies: 66
Views: 4,993
Posted By ross
Yes, if you have an ECS Amiga you can, after the...

Yes, if you have an ECS Amiga you can, after the standard system take over setup, set PAL bit in BEAMCON0.
So a move.w #$20,$dff1dc works.
Forum: Coders. Asm / Hardware 13 May 2018, 23:12
Replies: 6
Views: 290
Posted By ross
Just to add some info about "indirect" access...

Just to add some info about "indirect" access suggested by Galahad (that I make it also fall into the second of my cases).

You might ask why use a slower code (four more cycles, [EDIT:in pure...
Forum: Coders. Asm / Hardware 13 May 2018, 22:41
Replies: 6
Views: 290
Posted By ross
Hi and welcome. There are two methods. -...

Hi and welcome.

There are two methods.
- advanced: scan through hunks list in memory
- standard an simple that use reloc in executable: reference through a label

For the latter one example...
Forum: Coders. Asm / Hardware 12 May 2018, 22:32
Replies: 9
Views: 701
Posted By ross
Each line separately, the bounding box is too...

Each line separately, the bounding box is too big..

Even so anyway i've hard times to move two big mono polys with a max extension box of 256x256 pixels in a 4-planes (and some 5-planes zones)...
Forum: Coders. Asm / Hardware 09 May 2018, 17:26
Replies: 9
Views: 701
Posted By ross
Unfortunately not always but only in particular...

Unfortunately not always but only in particular conditions, which are those with which I find myself dealing (big and simple polygons, non-intersecting lines, separate planes).
If the video scene is...
Forum: support.WinUAE 07 May 2018, 17:18
Replies: 7
Views: 349
Posted By ross
So patch can be: DDFSTRT=$34, DDFSTOP=$d4,...

So patch can be:
DDFSTRT=$34, DDFSTOP=$d4, BPLCON1=$88, BPLxMOD+=2
(because original DDFSTOP=$d8 and no x-shift)

EDIT: just tried, works :)
Forum: support.WinUAE 07 May 2018, 14:25
Replies: 7
Views: 349
Posted By ross
You sure isn't a KS1.3 with ECS Agnus? If in...

You sure isn't a KS1.3 with ECS Agnus?
If in winUAE you setup this configuration the demo work as it should
(but not checked why).
Forum: support.WinUAE 07 May 2018, 13:19
Replies: 7
Views: 349
Posted By ross
So your real A500 is an ECS machine ;)

So your real A500 is an ECS machine ;)
Forum: Retrogaming General Discussion 06 May 2018, 23:48
Replies: 253
Views: 16,252
Posted By ross
I had not left any comments in this thread yet. ...

I had not left any comments in this thread yet.
But since it's one of my favorite games of all time (I've been a country champion so many years ago ;)),
I give you huge compliments for what you...
Forum: Coders. Asm / Hardware 06 May 2018, 23:11
Replies: 9
Views: 701
Posted By ross
Well, filling polygons on Amiga with blitter is...

Well, filling polygons on Amiga with blitter is simple. You have at disposal a special blitter line-mode that draw 1 pixel-per-line (too raw in wire-frame but perfect for successive fill). You can...
Forum: Coders. Asm / Hardware 04 May 2018, 16:12
Replies: 9
Views: 701
Posted By ross
wow, pure blitter weirdness! Then I stay with...

wow, pure blitter weirdness!
Then I stay with my routine ;)


I suspected it, but I tried anyway to ask..
So now I need to write a CPU concurrent single-plane poly filler to take advantage of...
Forum: Coders. Asm / Hardware 04 May 2018, 11:31
Replies: 9
Views: 701
Posted By ross
Blitter: clean-up line drawing and fill mode idle cycles.

I use the classic fast trick about poly rendering: I do not zero-fill the buffer but instead I do an x-or of the preceding line in a back buffer and then a blitter-fill into the front buffer.

But...
Forum: Coders. Asm / Hardware 02 May 2018, 17:27
Replies: 12
Views: 474
Posted By ross
Check DDFSTRT and DDFSTOP.

Check DDFSTRT and DDFSTOP.
Forum: Coders. Asm / Hardware 02 May 2018, 11:02
Replies: 14
Views: 946
Posted By ross
The only viable alternative is a smart blitter...

The only viable alternative is a smart blitter usage (with a 4-bpl screen).
Foreground image is not spanning full screen, so you can make cookye-cut operation in the center and a store operation in...
Forum: Coders. Asm / Hardware 01 May 2018, 11:40
Replies: 17
Views: 612
Posted By ross
Absolutely right. This is a mandatory (and...

Absolutely right.
This is a mandatory (and working) case for BLTPRI.
Forum: Coders. Asm / Hardware 01 May 2018, 11:07
Replies: 17
Views: 612
Posted By ross
Something escapes me.. The cpu always knows on...

Something escapes me..
The cpu always knows on which areas of memory the blitter works, so it is not enough just to make a check before starting the operation?
If the work is spanned in irq you can...
Forum: Coders. Asm / Hardware 01 May 2018, 08:06
Replies: 17
Views: 612
Posted By ross
The official Amiga programming guidelines state...

The official Amiga programming guidelines state that TAS must not be used on an Amiga as it can lock the machine (Agnus can't deal with this special RWM cycle, some DMA access can't take place and...
Forum: Coders. Asm / Hardware 01 May 2018, 01:16
Replies: 17
Views: 612
Posted By ross
Atomic operation in amiga architecture is...

Atomic operation in amiga architecture is prohibited, hence the reason TAS is unusable in chip mem and can hang the machine.
There is only consecutive operations so in your example result is...
Forum: Amiga scene 30 April 2018, 16:28
Replies: 20
Views: 1,000
Posted By ross
This must have been a pain.. Kudos.

This must have been a pain..

Kudos.
Forum: Amiga scene 30 April 2018, 15:59
Replies: 20
Views: 1,000
Posted By ross
yeahh, I really liked this sorta kinda...

yeahh, I really liked this sorta kinda x-interleaved 2-plane/2-playfiels $102-crunched scroll :cool


:great
Forum: Amiga scene 30 April 2018, 15:35
Replies: 20
Views: 1,000
Posted By ross
Great! This can solve other similar "void"...

Great!

This can solve other similar "void" seen also in other situations.
Just a few days ago in another thread there was talk of $102 and video synchronization.
This scroller is really...
Forum: Amiga scene 30 April 2018, 12:13
Replies: 20
Views: 1,000
Posted By ross
Hi Sting, I've noticed a copper problem in low...

Hi Sting, I've noticed a copper problem in low video part when Alice fall in multicolor background scene
(WinUAE AGA/030/CE with MMU emulation active).
If someone should see the problem can simply...
Forum: Amiga scene 29 April 2018, 19:54
Replies: 20
Views: 1,000
Posted By ross
Thanks :cool

Thanks :cool
Forum: support.Games 27 April 2018, 16:02
Replies: 18
Views: 1,001
Posted By ross
Sorry, I said jotd simply because it was among...

Sorry, I said jotd simply because it was among the authors and I have no contact with Psygore.
I assumed that jotd also had the latest version of the sources.
Forum: support.Games 27 April 2018, 15:50
Replies: 18
Views: 1,001
Posted By ross
Yes. I send a message to jotd to tell him how to...

Yes. I send a message to jotd to tell him how to do a fix for the WHDLoad version.


Indeed :). I do not think I'll patch the ADF version.
Forum: support.Games 27 April 2018, 15:00
Replies: 18
Views: 1,001
Posted By ross
It's a bug, it's hardly noticeable but is a bug. ...

It's a bug, it's hardly noticeable but is a bug.
Only on AGA because of a bad usage of extra bits of $102.
Forum: Coders. Asm / Hardware 26 April 2018, 10:11
Replies: 28
Views: 1,343
Posted By ross
Problem here is that if you activate BPLCON0 BPUx...

Problem here is that if you activate BPLCON0 BPUx bit then DMA channels fetch data from memory.
Only exceptions are the fake 7-planes mode with only 4 channel fetch plus BPL5/6DAT, and BPL1DAT like...
Forum: support.WinUAE 26 April 2018, 10:02
Replies: 30
Views: 1,248
Posted By ross
Hi Nibbler, hi malko ;) @hexaae: there is...

Hi Nibbler, hi malko ;)

@hexaae: there is some reason for a WHDLoad version for this game?
I do not remember exactly what I had done, but it seemed to work in all configurations.
Forum: Coders. General 25 April 2018, 20:59
Replies: 21
Views: 1,123
Posted By ross
Hi Sting, so Scali was Peter Pan! :D I'm...

Hi Sting, so Scali was Peter Pan! :D

I'm sorry Niklas, so definitely you're not.
Forum: Coders. General 25 April 2018, 15:21
Replies: 21
Views: 1,123
Posted By ross
Hi Niklas and välkommen :) Your documents...

Hi Niklas and välkommen :)

Your documents are a good read, thanks!

[EDIT]
Are you the ex-user Scali?
http://eab.abime.net/showthread.php?t=62607
Forum: Coders. General 25 April 2018, 11:56
Replies: 516
Views: 35,815
Posted By ross
It's not DanScott related but you can search for...

It's not DanScott related but you can search for AnimaInCorpore's work.

Google for Daimakaimura (Ghouls 'n Ghosts) and Atari..
(EDIT: writing atari gave me a strange tingle :shocked :D :p)

An...
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