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Forum: Coders. Asm / Hardware 24 January 2020, 19:32
Replies: 13
Views: 575
Posted By ross
Thanks Toni, another thing to keep in mind when...

Thanks Toni, another thing to keep in mind when optimizing 68k code.
:great


EDIT
Another important thing to remember: if possible use logical operations directly, that are faster.
As it is...
Forum: Coders. Asm / Hardware 24 January 2020, 15:43
Replies: 13
Views: 575
Posted By ross
Speaking of Easy68k I found two flaws, if someone...

Speaking of Easy68k I found two flaws, if someone is registered on their forum it could report the problem.

1.
(and this is big..)
movea.l #$00800001,a5
lea (a5,a5.l),a5

it completely...
Forum: Coders. Asm / Hardware 24 January 2020, 15:29
Replies: 21
Views: 819
Posted By ross
Maybe a full copper list or a exe can help to...

Maybe a full copper list or a exe can help to understand where you fail :)
Forum: Coders. Asm / Hardware 24 January 2020, 11:39
Replies: 21
Views: 819
Posted By ross
This: ;Bank 0 - Color 0-15 for PF1 ;Bank 0...

This:

;Bank 0 - Color 0-15 for PF1
;Bank 0 - Color 16-31 for PF2
;Bank 1 - Color 32-47 for odd (or 16 colors) sprites [0010]
;Bank 1 - Color 48-63 for even sprites [0011<<4], just in case


...
Forum: Coders. Asm / Hardware 23 January 2020, 18:53
Replies: 13
Views: 575
Posted By ross
Absolutely nothing (apart the 8 cycles for the...

Absolutely nothing (apart the 8 cycles for the two memory accesses on 68k, flags, stack and sp value sre untouched).
The only use that comes to mind is for some ugly SMC code, that varies registries...
Forum: Coders. Asm / Hardware 23 January 2020, 14:52
Replies: 13
Views: 575
Posted By ross
I organize everytime my data for movem access...

I organize everytime my data for movem access (both .w or .l).
And sign extension on data registers is usually usefull.

There a case I've also used movem to a single dx register, just to have not...
Forum: support.WinUAE 23 January 2020, 01:28
Replies: 28
Views: 834
Posted By ross
:great The main code question for me was not...

:great

The main code question for me was not the code fixing, but why this instructions sequence give problems on WinUAE ;)
Forum: support.WinUAE 22 January 2020, 20:12
Replies: 28
Views: 834
Posted By ross
Attached. Cheers.

Attached.

Cheers.
Forum: support.WinUAE 22 January 2020, 19:01
Replies: 28
Views: 834
Posted By ross
Ok, so this is not the problem. Yes, there...

Ok, so this is not the problem.

Yes, there in no hang, only IRQ storm that slow down the game incredibly.
But is not a constant, because the AUDx bit is set only after DMA fetch, that can also be...
Forum: support.WinUAE 22 January 2020, 18:46
Replies: 28
Views: 834
Posted By ross
- inside IRQ, DMA is stopped and INTREQ cleared ...

- inside IRQ, DMA is stopped and INTREQ cleared
- then DMA is reactivated

I've specified 'then', not knowing on hack related to "DMA wait".
In this case 94 DMA cycles after.

I thought it...
Forum: support.WinUAE 22 January 2020, 18:38
Replies: 28
Views: 834
Posted By ross
Because there is no more an IRQ4 triggered (so no...

Because there is no more an IRQ4 triggered (so no more DMA audio stop, and the sample repeat forever).
Forum: support.WinUAE 22 January 2020, 18:11
Replies: 28
Views: 834
Posted By ross
In this IRQ routine there are 94 involuntary "DMA...

In this IRQ routine there are 94 involuntary "DMA wait" cycles between Audio stop and restart, on 7MHz 68000.
Obviously in any faster processor they are less.

What's the 'cycles point' in WinUAE...
Forum: Coders. Asm / Hardware 22 January 2020, 15:47
Replies: 17
Views: 413
Posted By ross
This :) And small arrays in memory are an...

This :)

And small arrays in memory are an added value.
Forum: project.EAB 22 January 2020, 15:31
Replies: 36
Views: 1,416
Posted By ross
:great If I was able to write decently in...

:great

If I was able to write decently in English I would have written the same things :)
Forum: support.WinUAE 22 January 2020, 14:07
Replies: 28
Views: 834
Posted By ross
Yep, IRQ handler is terrible... like the rest of...

Yep, IRQ handler is terrible... like the rest of game code :D
But as so bad could be interesting for emulation oddity.
Forum: Coders. Asm / Hardware 22 January 2020, 13:16
Replies: 17
Views: 413
Posted By ross
Unfortunately there is not an 8 bit index...

Unfortunately there is not an 8 bit index available (which would have been very useful!)
You can use .b only on registers data usage.
Forum: support.WinUAE 22 January 2020, 13:10
Replies: 28
Views: 834
Posted By ross
This is interesting and strictly related to this...

This is interesting and strictly related to this thread:
http://eab.abime.net/showthread.php?t=100442
I based my code snippet on how the IRQ4 system work on WinUAE.

So sure the slave can be...
Forum: project.EAB 21 January 2020, 21:42
Replies: 36
Views: 1,416
Posted By ross
Thanks, I've missed the thread, now I take a look...

Thanks, I've missed the thread, now I take a look :)
Forum: project.EAB 21 January 2020, 21:35
Replies: 36
Views: 1,416
Posted By ross
I usually don't follow other Amiga forums or...

I usually don't follow other Amiga forums or Facebook groups, and it's possible that other users of this board don't also.
There is a thumbs-down icon, so it's definitely not good things, I'm just...
Forum: support.Games 19 January 2020, 18:26
Replies: 115
Views: 13,565
Posted By ross
Into the Zone the Ziriax slave v1.3_final. ...

Into the Zone the Ziriax slave v1.3_final.

I'm pretty confident that I've fixed the access fault reported by TjLaZer :)
I could not reproduce it with any 040/060 WinUAE configuration, but I...
Forum: support.Games 19 January 2020, 14:48
Replies: 115
Views: 13,565
Posted By ross
Thanks. Problem is an overflow missing check on...

Thanks.
Problem is an overflow missing check on a multi-indexed array in the original code.
Usually the array never ever fills.
Probably happens only on very very fast machines and when you are...
Forum: support.Games 19 January 2020, 02:18
Replies: 115
Views: 13,565
Posted By ross
Can you please post the core dump?

Can you please post the core dump?
Forum: Nostalgia & memories 19 January 2020, 00:23
Replies: 36
Views: 1,186
Posted By ross
eheh, if it were that simple :D

eheh, if it were that simple :D
Forum: Nostalgia & memories 19 January 2020, 00:11
Replies: 36
Views: 1,186
Posted By ross
When I say 'garbled' or 'simple' (for the SID) I...

When I say 'garbled' or 'simple' (for the SID) I don't mean in a derogatory way (but definitely the graphics are not exactly 'sharp' :p).
What has been put in the 170KB is impressive (a real time...
Forum: Nostalgia & memories 18 January 2020, 23:24
Replies: 36
Views: 1,186
Posted By ross
Technically speaking, for Amiga I think the...

Technically speaking, for Amiga I think the blitter-fill approach can be practiced (I thought about it a couple of years ago).
All frame need to be processed, filtered and adapted for line fills....
Forum: Nostalgia & memories 18 January 2020, 22:50
Replies: 36
Views: 1,186
Posted By ross
More than eleven years actually :) Idea...

More than eleven years actually :)

Idea began on end of 2008 on a japanese forum by fans of Touhou (the song is a theme in a stage from a bullet-hell game if I'm not wrong).
Then in 2009 an...
Forum: Nostalgia & memories 18 January 2020, 22:08
Replies: 36
Views: 1,186
Posted By ross
Just audio? And the nice bi-colors split screen?...

Just audio? And the nice bi-colors split screen? :p
Forum: Nostalgia & memories 18 January 2020, 17:01
Replies: 36
Views: 1,186
Posted By ross
Into the Zone! an executable for 020+4MB fast, so...

Into the Zone! an executable for 020+4MB fast, so you can hear how audio can sound (you can notice CPU use).
Forum: Nostalgia & memories 18 January 2020, 16:06
Replies: 36
Views: 1,186
Posted By ross
Thanks for the specs. I've probably...

Thanks for the specs.

I've probably somewhere the frames in vectorized format.
Sure a fill routine for the 1 bit format can be easily made, some dither/gray effect added and an ADPCM player used,...
Forum: Coders. Contest 18 January 2020, 15:58
Replies: 1,699
Views: 132,366
Posted By ross
For some reason I voted it :) (but not only it...

For some reason I voted it :) (but not only it :D)

Cheers!
Forum: Coders. Asm / Hardware 18 January 2020, 12:16
Replies: 13
Views: 606
Posted By ross
It was thrown in a few minutes last night, so I...

It was thrown in a few minutes last night, so I don't even know if I did everything right :)

For the encoding phase: sox.
I've set a frequency for an Amiga PER=300, with a low pass filter at 6Khz...
Forum: support.Games 18 January 2020, 11:59
Replies: 115
Views: 13,565
Posted By ross
Into the Zone! the new slave, please test. ...

Into the Zone! the new slave, please test.

Thanks to the original slave creator, especially to StingRay for blitter wait positions ;)
Forum: Coders. Asm / Hardware 18 January 2020, 02:31
Replies: 13
Views: 606
Posted By ross
A noisy test :)

A noisy test :)
Forum: support.Games 17 January 2020, 22:29
Replies: 115
Views: 13,565
Posted By ross
Yes, missing blitter wait. I'm working on it :)

Yes, missing blitter wait. I'm working on it :)
Forum: Nostalgia & memories 17 January 2020, 17:54
Replies: 36
Views: 1,186
Posted By ross
Looks better than any version for Amiga has been...

Looks better than any version for Amiga has been made so far.
:great

How is streaming done?
Forum: Nostalgia & memories 16 January 2020, 21:01
Replies: 23
Views: 508
Posted By ross
Ok we can make a deal. Does the car reach 88...

Ok we can make a deal.
Does the car reach 88 miles per hour?
Forum: Nostalgia & memories 16 January 2020, 20:38
Replies: 23
Views: 508
Posted By ross
I want a time machine.. Does anyone have it for...

I want a time machine.. Does anyone have it for sale?
I've a 1.21 gigawatts power supply ready for use.
Forum: support.Games 16 January 2020, 20:22
Replies: 24
Views: 1,627
Posted By ross
:evilgrin ;)

:evilgrin

;)
Forum: Nostalgia & memories 16 January 2020, 19:22
Replies: 23
Views: 508
Posted By ross
Bellaria (it seems to me it was called Kursaal).

Bellaria (it seems to me it was called Kursaal).
Forum: support.Games 16 January 2020, 19:11
Replies: 24
Views: 1,627
Posted By ross
:laughing Well, I hope I still have all the...

:laughing

Well, I hope I still have all the test bench I used, I have a little bit of confusion between my files..

And then I have to finish other things otherwise they lynch me :D
Showing results 1 to 40 of 2394

 
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