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Forum: Amiga scene Today, 14:22
Replies: 28
Views: 799
Posted By ross
Yep, it's a 'feature' ;)

Yep, it's a 'feature' ;)
Forum: Amiga scene Today, 00:46
Replies: 28
Views: 799
Posted By ross
The game doesn't save the score. [added a...

The game doesn't save the score.

[added a comma to avoid misunderstandings :p]
Forum: Amiga scene Yesterday, 23:50
Replies: 28
Views: 799
Posted By ross
Great little game :great, kudos to...

Great little game :great, kudos to Pink/Fade1/Bartman^Abyss!



Someone posted it into the Zone! :D
Press RMB to start with infinite lives (or press it whenever you want during the game).
...
Forum: Coders. Asm / Hardware 21 May 2020, 16:45
Replies: 5
Views: 193
Posted By ross
:great

:great
Forum: Coders. Asm / Hardware 21 May 2020, 12:17
Replies: 5
Views: 193
Posted By ross
hmm maybe .. The screen doesn't scroll, so you...

hmm maybe ..
The screen doesn't scroll, so you might try playing with BPLCON1 and some unusual DDFSTRT that 'shift' fetch positions and make the CWAIT valid for the color changes.
Forum: Coders. Asm / Hardware 21 May 2020, 11:51
Replies: 5
Views: 193
Posted By ross
Hi Graeme, this is due to the way the AGA...

Hi Graeme, this is due to the way the AGA advanced fetches mode works.
You can view it with the visual DMA debugger.
Bitplane DMA slots are not distributed evenly over time but 'packed'.

64...
Forum: support.Games 19 May 2020, 21:03
Replies: 25
Views: 789
Posted By ross
All the package is custom made and I've replaced...

All the package is custom made and I've replaced most of the low level / init routines with mine (optimizing several things..).
Code/data are packed with nrv2r (search the forum, there are some...
Forum: support.Games 19 May 2020, 16:24
Replies: 25
Views: 789
Posted By ross
Done. To make things a little more...

Done.

To make things a little more interesting I added a trainer, fixed the display glitches and packed the game into a single file.

Attached. Yes, 71.6 KB for the full game :)
Works in every...
Forum: support.Games 18 May 2020, 19:33
Replies: 25
Views: 789
Posted By ross
Ok, I'll take a look.

Ok, I'll take a look.
Forum: support.Games 18 May 2020, 11:20
Replies: 25
Views: 789
Posted By ross
This. Game disable copper DMA and then setup...

This.
Game disable copper DMA and then setup chipset registers for the display with CPU.
Unfortunately it 'forgets' to set some that KS>3.0 has changed the way of use (in particular BLPxMODs)....
Forum: request.Other 12 May 2020, 00:29
Replies: 10
Views: 991
Posted By ross
You caught me :) Actually the first crack for...

You caught me :)
Actually the first crack for #1510 is from Galahad but I'm so blind I haven't even noticed it...
Well, mine contain a fix for processor >000, that probably no one will ever use...
Forum: support.WinUAE 08 May 2020, 15:22
Replies: 62
Views: 6,822
Posted By ross
Hi Toni, debug related oddity. Code: ...

Hi Toni, debug related oddity.

Code:
move.l #$7fff7fff,$dff09a
rts

Before launching the previous one I insert in the debugger:
w 0 dff09a 4 w 7fff7fff.l
>w
0: 00DFF09A - 00DFF09D (4) W...
Forum: Coders. Asm / Hardware 04 May 2020, 22:10
Replies: 83
Views: 10,799
Posted By ross
I share the glory with all the great coders here!...

I share the glory with all the great coders here!

[Obviously I bribed the judge :D]
Forum: Coders. Asm / Hardware 03 May 2020, 23:42
Replies: 23
Views: 1,146
Posted By ross
Only TAS ;), CLR is read/write but not atomic.

Only TAS ;), CLR is read/write but not atomic.
Forum: Coders. Asm / Hardware 03 May 2020, 21:38
Replies: 23
Views: 1,146
Posted By ross
hmm, you have not convinced me :) I simply...

hmm, you have not convinced me :)

I simply think that the engineers realized that they had mistakenly overlooked this possibility and corrected in 020+
(so much that they added tst.x (d,pc), but...
Forum: Coders. Asm / Hardware 03 May 2020, 19:45
Replies: 23
Views: 1,146
Posted By ross
For 68000 instructions timing see here: ...

For 68000 instructions timing see here:
http://oldwww.nvg.ntnu.no/amiga/MC680x0_Sections/mc68000timing.HTML
or here:
https://wiki.neogeodev.org/index.php?title=68k_instructions_timings

Do not...
Forum: Coders. Asm / Hardware 03 May 2020, 11:04
Replies: 23
Views: 1,146
Posted By ross
I totally agree. An instruction with...

I totally agree.

An instruction with addressing mode relative to pc that I tend to use (and that does not exist on bare 000) is tst d(pc)*.
With this machine directive or option, non-working code...
Forum: Coders. Asm / Hardware 03 May 2020, 01:44
Replies: 23
Views: 1,146
Posted By ross
Yes, an option or a machine directive, like: ...

Yes, an option or a machine directive, like:

machine mc68020

Start lea (data,pc),a0
move.l (A0),d0
rts

data dc.l $ABCDABCD
Forum: support.Other 01 May 2020, 18:06
Replies: 7
Views: 403
Posted By ross
Yes, you are right, I've an active DF1: and with...

Yes, you are right, I've an active DF1: and with it there is not enough memory.
I could insert my AddChip bootblock to fix it..
Well, who cares :)
Forum: support.Other 01 May 2020, 17:45
Replies: 7
Views: 403
Posted By ross
Into the Zone! Fix for slow processors, 1MB...

Into the Zone!

Fix for slow processors, 1MB chip ram required (this is by intro design) you need to disable DF1: in 515+512KB machines.
Forum: support.WinUAE 01 May 2020, 10:54
Replies: 9
Views: 705
Posted By ross
You are a M! :p

You are a M! :p
Forum: Coders. Asm / Hardware 01 May 2020, 10:20
Replies: 4
Views: 779
Posted By ross
The concerned WAIT instruction: dc.w $802D,$80fe ...

The concerned WAIT instruction: dc.w $802D,$80fe
As you can see I've a wait for any position >=$80 because I completely mask the vertical positions excluding bit 7
(so I could have put any value...
Forum: Amiga scene 30 April 2020, 21:05
Replies: 44
Views: 3,366
Posted By ross
Nah :), better if done directly by pink. Mine...

Nah :), better if done directly by pink.
Mine is only a tiny and dirty hack :cool
Forum: Amiga scene 30 April 2020, 18:59
Replies: 44
Views: 3,366
Posted By ross
Infinite lives. Start a new game, press and...

Infinite lives.
Start a new game, press and keep pressed right mouse button during "Round 1" blinking until game start (you can notice a little screen flash).

Remember that alien invasion leads...
Forum: Amiga scene 30 April 2020, 14:41
Replies: 44
Views: 3,366
Posted By ross
Ok, into the Zone! It's a patch a bit rough but...

Ok, into the Zone!
It's a patch a bit rough but works (for me) :)

Cheers.
Forum: Amiga scene 29 April 2020, 18:18
Replies: 44
Views: 3,366
Posted By ross
Yes, I had already noticed when the problem arose...

Yes, I had already noticed when the problem arose and I've a patch for it.
And also a trainer; the game continues to be more difficult until level 99, but it is impossible already much earlier :)
...
Forum: Coders. General 28 April 2020, 19:12
Replies: 17
Views: 734
Posted By ross
Yep, this can't work on its own. Inside there...

Yep, this can't work on its own.
Inside there is also some encrypted code...

Not the best example to learn how to use ReSource :)
Forum: Coders. General 28 April 2020, 18:53
Replies: 17
Views: 734
Posted By ross
Maybe a binary loaded with LoadSeg() and then...

Maybe a binary loaded with LoadSeg() and then modified?

More info needed :)
Forum: project.TOSEC (amiga only) 28 April 2020, 18:37
Replies: 25
Views: 1,596
Posted By ross
There seems to be nothing in the Defjam intro for...

There seems to be nothing in the Defjam intro for game crack.
It writes something in low memory, but looks like just a skeleton for an unused generic patch.
Forum: Coders. General 28 April 2020, 18:24
Replies: 17
Views: 734
Posted By ross
I usually use ReSource for offsets (positive or...

I usually use ReSource for offsets (positive or negative) in libraries.
And I've a file with all the _LVO offsets to include in my ASM projects.

For -$3C:
_LVODispatch equ -60
...
Forum: Coders. Asm / Hardware 26 April 2020, 22:26
Replies: 4
Views: 779
Posted By ross
You can do it. This is not the most suitable...

You can do it.
This is not the most suitable code and it is a bit tricky, just a working example..
start:
lea $dff000,a5
move.w #$4000,$9a(a5)
move.w #$0100,$96(a5)

lea cop2,a0
move.l...
Forum: Amiga scene 25 April 2020, 14:49
Replies: 44
Views: 3,366
Posted By ross
I like it! :great

I like it!
:great
Forum: Coders. Asm / Hardware 23 April 2020, 22:35
Replies: 4
Views: 518
Posted By ross
You don't have to use SKIP but CNOP, see this...

You don't have to use SKIP but CNOP, see this code:
start:
lea $dff000,a5
move.w #$4000,$9a(a5)
move.w #$0100,$96(a5)

move.l #cop2,$84(a5) ; pointer COP
move.l #cop1,$80(a5) ; pointer...
Forum: support.Demos 23 April 2020, 15:22
Replies: 2
Views: 465
Posted By ross
https://eab.abime.net/showthread.php?t=69973 ...

https://eab.abime.net/showthread.php?t=69973

This demo is very picky about CPU timing.

If you slow down CPU, from the default Quickstart A1200 setup on new WinUAE version, this demo works....
Forum: Coders. General 23 April 2020, 10:27
Replies: 22
Views: 4,076
Posted By ross
:great

:great
Forum: Coders. General 21 April 2020, 15:17
Replies: 22
Views: 4,076
Posted By ross
:agree

:agree
Forum: Coders. General 21 April 2020, 15:03
Replies: 22
Views: 4,076
Posted By ross
Hi earok, check this thread, is where my addchip...

Hi earok, check this thread, is where my addchip utility was born:
http://eab.abime.net/showthread.php?t=87859

Then the Odyssey+ release:
http://eab.abime.net/showpost.php?p=1322048&postcount=44...
Forum: Coders. Asm / Hardware 19 April 2020, 19:25
Replies: 10
Views: 883
Posted By ross
Now I know why it works, everything is ok :great

Now I know why it works, everything is ok :great
Forum: support.WinUAE 19 April 2020, 18:13
Replies: 83
Views: 11,528
Posted By ross
Great update, as usual many new things! ...

Great update, as usual many new things!


Good and very interesting addition to debugging :)


It will be fixed in the future or there are still unknown variables?


I've a little problem...
Forum: Coders. Asm / Hardware 19 April 2020, 13:49
Replies: 10
Views: 883
Posted By ross
It works :) On NTSC you need to setup sprite...

It works :)

On NTSC you need to setup sprite pointers before line $14 ($19 for PAL).
So I need an exe to check why works with >=$15 (this way you are a frame later ..)
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