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Forum: Retrogaming General Discussion Today, 19:21
Replies: 54
Views: 5,029
Posted By jotd
that's damn great. Thanks.

that's damn great. Thanks.
Forum: Amiga scene Today, 11:59
Replies: 68
Views: 6,389
Posted By jotd
you can't just convert z80 code to 68k because...

you can't just convert z80 code to 68k because all the low level interrupt stuff won't convert properly. Plus all code related to graphics/custom chips of the arcade machine won't convert.

There...
Forum: Retrogaming General Discussion Today, 10:43
Replies: 54
Views: 5,029
Posted By jotd
I'll take it. But explain me something: how can...

I'll take it. But explain me something: how can something like that can be so small?

512x512x4 = 1048576

2kb seems small.
Forum: Retrogaming General Discussion Today, 00:26
Replies: 54
Views: 5,029
Posted By jotd
the CPU is really not the hardest part. Else we'd...

the CPU is really not the hardest part. Else we'd already have perfect X68000 conversions.

the custom chips are different, the image formats are different (sprites, bitplanes, interleaved) ...
Forum: Retrogaming General Discussion Yesterday, 20:15
Replies: 54
Views: 5,029
Posted By jotd
I use a 1 bitplane bitmap of the maze (no tiles)....

I use a 1 bitplane bitmap of the maze (no tiles). I'm planning to use it for display collision as well, maybe as array of bytes, not bits.

And also use a table to compute sprite positions, but my...
Forum: Retrogaming General Discussion Yesterday, 00:21
Replies: 54
Views: 5,029
Posted By jotd
ok, worked a bit to produce some small proof of...

ok, worked a bit to produce some small proof of concept. Everyone knows that it's doable, but you still have to do it.

72760

maze is one bitplane only
pacman has been drawn on another bitplane...
Forum: Retrogaming General Discussion 03 August 2021, 20:39
Replies: 54
Views: 5,029
Posted By jotd
Maybe 3 planes if the colors of the fruits allow...

Maybe 3 planes if the colors of the fruits allow it. But anyway only the fruits will be blitted with full bitplanes, so 3 or 4 isn't going to make a big difference.

The sprite palette will have to...
Forum: Retrogaming General Discussion 03 August 2021, 18:01
Replies: 54
Views: 5,029
Posted By jotd
okay, back to Pacman after all. We'll see...

okay, back to Pacman after all.

We'll see the AI later on.

Decided to go 100% asm. 4 planes.

1 plane for maze
1 plane for pacman using blitter (1 plane)
1 plane for dots
1 other plane (to...
Forum: project.Amiga Game Factory 01 August 2021, 23:19
Replies: 23
Views: 1,304
Posted By jotd
exactly. The conclusion is: don't engage in...

exactly. The conclusion is: don't engage in something too demanding or you won't be able to finish it :)

(not blaming anyone, I've been there, but now I tend to complete things, at least some of...
Forum: Amiga scene 01 August 2021, 22:27
Replies: 68
Views: 6,389
Posted By jotd
Serious attempt there it seems. I used MAME...

Serious attempt there it seems.

I used MAME to run a Z80 game (Bagman) in order to understand the logic and reverse engineer it for a now complete remake. It was invaluable of course, as static...
Forum: Retrogaming General Discussion 01 August 2021, 21:10
Replies: 110
Views: 11,142
Posted By jotd
I think that music can still be changed without...

I think that music can still be changed without the sources. The rest of the game, well, too much reverse work to improve it (and it's also not so great)
Forum: project.Amiga Game Factory 01 August 2021, 20:08
Replies: 23
Views: 1,304
Posted By jotd
It's fun to start a project but the devil is...

It's fun to start a project but the devil is often in the details. I agree this Seko project is very well advanced. But completing such a project is also a lot of work with the last bugs to iron out,...
Forum: project.Amiga Game Factory 01 August 2021, 13:16
Replies: 23
Views: 1,304
Posted By jotd
would be great having a port .... done by...

would be great having a port .... done by Mcgeezer!!!!!
Forum: Amiga scene 30 July 2021, 10:30
Replies: 167
Views: 38,970
Posted By jotd
new version of the slave assigns ENV: to RAM: so...

new version of the slave assigns ENV: to RAM: so any diskfont.library will work.
Forum: Amiga scene 29 July 2021, 19:06
Replies: 167
Views: 38,970
Posted By jotd
good. Problem solved. Will update with ENV:...

good. Problem solved. Will update with ENV: assign and small fixes. Then CC1
Forum: Amiga scene 29 July 2021, 14:31
Replies: 167
Views: 38,970
Posted By jotd
thanks for the infos about CC1 / Blitz Tennis....

thanks for the infos about CC1 / Blitz Tennis. This game has so many names...

About CC2, one thing that could go wrong is the version of "diskfont.library" that you"re using. Did you copy it from...
Forum: Retrogaming General Discussion 29 July 2021, 11:20
Replies: 52
Views: 2,381
Posted By jotd
I think this thread is about "amiga games that...

I think this thread is about "amiga games that have a port that sucks" :) 1942 doesn't have an amiga version AFAIK. It's 1943.
Forum: Amiga scene 28 July 2021, 22:26
Replies: 167
Views: 38,970
Posted By jotd
CC1 is available as cracked. Is there an original...

CC1 is available as cracked. Is there an original floating around?
Forum: Amiga scene 28 July 2021, 16:59
Replies: 167
Views: 38,970
Posted By jotd
CC1 ? is it available somewhere as PD?

CC1 ? is it available somewhere as PD?
Forum: Retrogaming General Discussion 27 July 2021, 22:02
Replies: 48
Views: 1,917
Posted By jotd
Snooker & Speedball & Swos & Pinball games...

Snooker & Speedball & Swos & Pinball games actually shoot balls :)

And Bubble Bobble & Rainbow Islands have weapons too.

I like the question. Very challenging to find games like this.
...
Forum: Coders. General 27 July 2021, 21:33
Replies: 242
Views: 49,693
Posted By jotd
WinUAE alone is a good reason to use windows

WinUAE alone is a good reason to use windows
Forum: Coders. Asm / Hardware 25 July 2021, 16:29
Replies: 13
Views: 1,211
Posted By jotd
I'm very surprised as "waste of time" for me...

I'm very surprised as "waste of time" for me means: "waste of your time". It wasn't condescending, it's just that I've been down that route and it's frustrating to re-do what others have done, and...
Forum: Coders. General 25 July 2021, 16:12
Replies: 43
Views: 4,188
Posted By jotd
upper score panel may not use EHB but only 8 or...

upper score panel may not use EHB but only 8 or 16 colors.
Forum: Coders. Asm / Hardware 25 July 2021, 15:38
Replies: 13
Views: 1,211
Posted By jotd
let me rephrase that: you're not redoing all work...

let me rephrase that: you're not redoing all work behind all whdload ECS slaves singlehandedly, even by copying some code that is open sourced (where you'd have to credit the authors btw). Now you're...
Forum: Coders. General 25 July 2021, 15:28
Replies: 43
Views: 4,188
Posted By jotd
makes sense. A kind of HoldAndModify but in...

makes sense. A kind of HoldAndModify but in another dimension
Forum: support.Games 25 July 2021, 15:26
Replies: 8
Views: 499
Posted By jotd
you could create a whdload coredump on the crash....

you could create a whdload coredump on the crash. And tell which version you used.

But you're the first one in that case.
Forum: Coders. General 25 July 2021, 11:33
Replies: 43
Views: 4,188
Posted By jotd
I already asked myself the same question. That...

I already asked myself the same question. That can appear pretty much as a stupid idea... I suppose that creating more color registers was more expensive, plus most computers of the era had only 16...
Forum: Coders. Asm / Hardware 25 July 2021, 11:31
Replies: 13
Views: 1,211
Posted By jotd
that would be a good boost for my CDTVload...

that would be a good boost for my CDTVload project (like CD32load but for CDTV).

Personally I just used Stephen resourced CDTV device to read a track but no ISO support, etc... so I was planning...
Forum: Coders. General 25 July 2021, 09:44
Replies: 43
Views: 4,188
Posted By jotd
In terms of DMA bandwidth it's the same thing. It...

In terms of DMA bandwidth it's the same thing. It can be slower if you set the 64 colors in the copperlist instead of setting them with CPU beforehand.
Forum: support.Games 25 July 2021, 09:42
Replies: 8
Views: 499
Posted By jotd
As noone can reproduce, this is really difficult...

As noone can reproduce, this is really difficult to investigate.

Could be interesting to try with WHDLoad 16.7 (latest beta).

Do other kick31 games work on your machine? for instance Virocop,...
Forum: Coders. General 24 July 2021, 20:49
Replies: 43
Views: 4,188
Posted By jotd
EHB or 6 plane KillEHB (real 64 colors) that's...

EHB or 6 plane KillEHB (real 64 colors) that's the same speed. Once color registers are loaded, looking them up isn't really a problem.
Forum: project.Amiga Game Factory 24 July 2021, 20:47
Replies: 240
Views: 22,315
Posted By jotd
Ah nice attempts. The ice track is good. I didn't...

Ah nice attempts. The ice track is good. I didn't see the big picture at once :) It's exactly the kind of stuff I could use for extra tracks.

Be prepared to create all 21 tracks if you go down...
Forum: support.Games 24 July 2021, 17:42
Replies: 8
Views: 499
Posted By jotd
on the contrary 68030+FPU is perfect for the FPU...

on the contrary 68030+FPU is perfect for the FPU version of this game.

Check with FILELOG to see which file is used (tfx, tfx.fpu, etc...) and report name and size.

There are also separate...
Forum: support.WinUAE 24 July 2021, 11:16
Replies: 849
Views: 219,830
Posted By jotd
I get systematic crashes when uniconifying winuae...

I get systematic crashes when uniconifying winuae after a resume from a windows sleep mode

zoned the dumps I got those days.
Forum: project.Amiga Game Factory 22 July 2021, 18:38
Replies: 240
Views: 22,315
Posted By jotd
still have to figure out exactly how the meta...

still have to figure out exactly how the meta data work. Not a lot of time to do that ATM but that may change
Forum: Retrogaming General Discussion 22 July 2021, 07:35
Replies: 80
Views: 6,247
Posted By jotd
If you have the music modules, I can certainly...

If you have the music modules, I can certainly try to adapt the music replayer. I already could remove the music

problem is the sfx. I'd have to rip them and use phx ptplayer for them too or there...
Forum: Games images which need to be WHDified 21 July 2021, 21:47
Replies: 8
Views: 729
Posted By jotd
waiting for Codetapper to provide the source of...

waiting for Codetapper to provide the source of the slave
Forum: project.Amiga Game Factory 21 July 2021, 19:31
Replies: 240
Views: 22,315
Posted By jotd
that could be cool but 1) you can't just...

that could be cool but

1) you can't just rework the shaded pics. If you want to rework existing circuits, use the unshaded versions
2) palette is pretty much limited. 64 colors total + shades....
Forum: Retrogaming General Discussion 19 July 2021, 15:57
Replies: 19
Views: 1,378
Posted By jotd
probably doable on A1200 with some fastmem. Audio...

probably doable on A1200 with some fastmem. Audio doesn't need any cpu (on the STE it does) and there's a blitter.

The chipmem issue can be solved by fast to chip copies. I doubt that the game...
Forum: Retrogaming General Discussion 19 July 2021, 11:34
Replies: 19
Views: 1,378
Posted By jotd
if ST-E can do it, can't the Amiga do it? even...

if ST-E can do it, can't the Amiga do it? even A1200. Because the video is extremely impressive.
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