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Forum: support.Apps Yesterday, 22:54
Replies: 7
Views: 142
Posted By ross
If you want to keep readable files on disk, only...

If you want to keep readable files on disk, only change the checksum (bytes 4~7) and leave 'DOSx' as is.
Disk does not boot anymore but files are usable.
Forum: request.Old Rare Games 18 February 2019, 18:25
Replies: 5
Views: 168
Posted By ross
Yes, but in this case there is a problem. ...

Yes, but in this case there is a problem.

There is not a proper disk check, so if you do not wait a little for a settle, the load fail ;)
Forum: request.Old Rare Games 18 February 2019, 18:15
Replies: 5
Views: 168
Posted By ross
Loader is broken. When the screen flashes,...

Loader is broken.

When the screen flashes, change disk and wait few seconds.
Then press mouse button.

This game need a fix...
Forum: Coders. Asm / Hardware 17 February 2019, 21:32
Replies: 24
Views: 4,411
Posted By ross
:great Time for something new ;) ...

:great


Time for something new ;)


Thanks!
Forum: Coders. Asm / Hardware 17 February 2019, 20:12
Replies: 24
Views: 4,411
Posted By ross
I apologize with Toni. This bug is unrelated to...

I apologize with Toni.
This bug is unrelated to latest beta update but present also on previous official build.

My fault for not having tried it before posting :(
Forum: Coders. Asm / Hardware 17 February 2019, 18:41
Replies: 24
Views: 4,411
Posted By ross
Hi Toni, after the fix a new related emulation...

Hi Toni, after the fix a new related emulation bug appeared. You have a PM.

In the 'border sprite slice', when you change BPLCON2, DIWSTOP is not respected.
(ignore the sprites glitch, double...
Forum: support.WinUAE 17 February 2019, 13:46
Replies: 7
Views: 240
Posted By ross
Ok, thanks. Actually found it only by...

Ok, thanks.


Actually found it only by chance.
Probably doesn't worth the trouble :).
Forum: support.WinUAE 17 February 2019, 13:36
Replies: 47
Views: 3,557
Posted By ross
Ok, monam disassemble it right. --- ...

Ok, monam disassemble it right.


---

Just for the record, found a bug in devpac for some 020+ 'unusual/unused' addressing mode:
movea.l ([],d0.l),a6
movea.l ([d0.l]),a6
These two wrongly...
Forum: support.WinUAE 17 February 2019, 13:21
Replies: 47
Views: 3,557
Posted By ross
No idea, but surely I would disassemble them like...

No idea, but surely I would disassemble them like this:

dc.b $2c,$70,$09,%00010101 ;movea.l ([a0],d0.l),a6
dc.b $2c,$70,$09,%10010101 ;movea.l ([],d0.l),a6

I'll try with monam and report.
Forum: support.WinUAE 17 February 2019, 13:12
Replies: 47
Views: 3,557
Posted By ross
Sure for most of them :) But take this...

Sure for most of them :)

But take this snippet:
lea $4.w,a0
moveq #0,d0
move.l a0,$0.w
dc.b $2c,$70,$09,%00010101
dc.b $2c,$70,$09,%10010101

That disassemble to:
Forum: Coders. Contest 17 February 2019, 01:52
Replies: 728
Views: 44,085
Posted By ross
Well, it was clear from the beginning that it was...

Well, it was clear from the beginning that it was too little time to create a game of this size / quality
(who has been in a videogames creation team realizes what I'm talking about ..)

Even with...
Forum: support.WinUAE 16 February 2019, 22:03
Replies: 7
Views: 240
Posted By ross
I have more clear now what happens. Start...

I have more clear now what happens.

Start WinUAE with Subpixel emulation and /Display/Superhires.
When I switch to Superplus (or other programmed video beam mode?), display remain in SuperHires...
Forum: support.WinUAE 16 February 2019, 21:45
Replies: 7
Views: 240
Posted By ross
If I load the mentioned configuration with...

If I load the mentioned configuration with disabled Subpixel emulation, then from WB I select Superplus, WinUAE force itself in Display/Hires mode
and prevents me to change to Superhires mode (there...
Forum: support.WinUAE 16 February 2019, 21:32
Replies: 11
Views: 500
Posted By ross
You could try the Superplus driver (a sort of...

You could try the Superplus driver (a sort of hacked PAL monitor driver).
Allows you an 800x300 resolution at ~15Khz
I've no idea how it behave in you monitor for y resolution :)
Forum: support.WinUAE 16 February 2019, 21:25
Replies: 7
Views: 240
Posted By ross
Ok, I leave a message in the other thread with...

Ok, I leave a message in the other thread with only a recommendation to try the driver.

I start the emulation with the attached config.
Forum: support.WinUAE 16 February 2019, 20:54
Replies: 47
Views: 3,557
Posted By ross
Hi Toni, i'm using some memory indirect...

Hi Toni, i'm using some memory indirect addressing mode and noticed something strange in disassembler (code is properly executed).
Seems that base register is sometime suppressed (and i'm not...
Forum: support.WinUAE 16 February 2019, 20:37
Replies: 7
Views: 240
Posted By ross
SuperPlus and subpixel emulation

Hi Toni, I was going to recommend a test for the Superplus driver (v40.5) (a sort of hacked PAL monitor driver)
and noticed a problem in Subpixel&Display/SuperHires emulation (i've it normally...
Forum: Coders. Asm / Hardware 16 February 2019, 12:10
Replies: 24
Views: 4,411
Posted By ross
Great! Thanks for all.

Great! Thanks for all.
Forum: Coders. Asm / Hardware 15 February 2019, 21:20
Replies: 24
Views: 4,411
Posted By ross
Ok, found a possible bug in WinUAE emulation. ...

Ok, found a possible bug in WinUAE emulation.
It arise when HAM8 AND BPLAM>0 AND 64bit sprites used. All works as expected with BPLAM=0.
A strange big shift and gradient effect on bitplanes.
It's...
Forum: Coders. Asm / Hardware 15 February 2019, 20:01
Replies: 24
Views: 4,411
Posted By ross
Sorry for resurrecting this, but i've to...

Sorry for resurrecting this, but i've to understand.

I'm in the making of an HAM8 effect that require base color starting from an upper bank position (>=32).
After setting BPLAM=64 i've noticed...
Forum: Coders. System 14 February 2019, 14:53
Replies: 25
Views: 653
Posted By ross
Now you have intrigued me because I do not use...

Now you have intrigued me because I do not use Permit() before rts and it normally works.

If i'm not wrong it's mandatory to do the ReplyMsg() in Forbid() state and exit w/o a Permit() to prevent...
Forum: Coders. Asm / Hardware 09 February 2019, 00:00
Replies: 9
Views: 418
Posted By ross
Yes, i've used it in a non-return ambient. You...

Yes, i've used it in a non-return ambient.
You can simply add:

move.l a5,(a2)
...
moveq #0,d1
movec vbr,d1
...
dc.l $4e7b0801 ;movec d0,vbr
Forum: Coders. Asm / Hardware 08 February 2019, 23:53
Replies: 9
Views: 418
Posted By ross
Hi jotd, see this message...

Hi jotd, see this message http://eab.abime.net/showpost.php?p=1223875&postcount=15
CPUSHA pushes and possibly invalidates selected cache lines (IC=instruction, DC=data, BC=both).
BC works, but if...
Forum: Coders. General 08 February 2019, 13:29
Replies: 15
Views: 2,481
Posted By ross
Like other projects of mine: "paused" :D

Like other projects of mine: "paused" :D
Forum: Coders. Asm / Hardware 08 February 2019, 13:26
Replies: 9
Views: 418
Posted By ross
000~060, all KS start ...

000~060, all KS

start
move.w #$4000,$dff09a
movea.l $4.w,a6
lea super(pc),a5
jsr _LVOSupervisor(a6)
move.w #$c000,$dff09a
rts
Forum: Coders. General 06 February 2019, 22:56
Replies: 6
Views: 229
Posted By ross
:great

:great
Forum: Coders. General 06 February 2019, 22:14
Replies: 6
Views: 229
Posted By ross
Manually edited the header and deleted the last...

Manually edited the header and deleted the last hunk, then used xfdDecrunch.

However you must know how the Amiga's exe are structured.
Then to modify it any hex editor do the job (literally a few...
Forum: Coders. General 06 February 2019, 21:59
Replies: 6
Views: 229
Posted By ross
A simple Power Packer 4.0 file with an added...

A simple Power Packer 4.0 file with an added dummy data hunk at the end ;)
Forum: Coders. Asm / Hardware 06 February 2019, 21:26
Replies: 7
Views: 426
Posted By ross
Well, in this case in fact they would not be...

Well, in this case in fact they would not be adequate instructions, consider that there are those for a single bit (BTST, BCHG, BSET, BCLR), that among other things have the very useful property to...
Forum: Coders. Asm / Hardware 06 February 2019, 20:31
Replies: 7
Views: 426
Posted By ross
Heya Geezer, check the Ocean Loader v2 source for...

Heya Geezer, check the Ocean Loader v2 source for an interesting use case.

I've also used it for quarter pixel scroll bit distribution and in a sine scroll :)
And sure in various 020+ code i've...
Forum: support.WinUAE 03 February 2019, 14:43
Replies: 12
Views: 495
Posted By ross
Nice additions for debugging! Thanks.

Nice additions for debugging!

Thanks.
Forum: Coders. Asm / Hardware 01 February 2019, 15:47
Replies: 22
Views: 4,171
Posted By ross
WinUAE display is more extended, from $5c to $1d3...

WinUAE display is more extended, from $5c to $1d3 included (376 lores pixels) and is blanked before and after (so no $58 background color visible).
Your values seems to be shifted by 4 pixels...
Forum: Coders. Releases 01 February 2019, 13:47
Replies: 5
Views: 332
Posted By ross
:great Where you got the unpacker? ...

:great


Where you got the unpacker?
There is somewhere on board a very fast routine available.


What are the values on average for the leeway?
Forum: Coders. Asm / Hardware 01 February 2019, 12:05
Replies: 22
Views: 4,171
Posted By ross
This is interesting. Toni confirmed in an old...

This is interesting.
Toni confirmed in an old message that first pixel is visible with DIWSTRT(<)=$5C for ECS and AGA, apart some early A1000 where DIWSTRT can be $60. So in WinUAE.


Yes, I set...
Forum: Coders. Asm / Hardware 31 January 2019, 19:19
Replies: 22
Views: 4,171
Posted By ross
Hi Toni and dissident, i've to better understand...

Hi Toni and dissident, i've to better understand the upper sentence...

My first DIWSTRT position for a full left overscan is value $5c, that correspond to a x sprite position = $5b.
Or are you...
Forum: Coders. System 31 January 2019, 17:43
Replies: 5
Views: 295
Posted By ross
Yes, zeroed only in KS2+. :great

Yes, zeroed only in KS2+.
:great
Forum: Coders. System 31 January 2019, 16:10
Replies: 5
Views: 295
Posted By ross
Yes, common practice in different exe-packers and...

Yes, common practice in different exe-packers and exe-tampered to save some bytes.
Works in every existing kickstart so far. So definitely a "feature" that will be maintained for compatibility in...
Forum: Coders. General 28 January 2019, 19:10
Replies: 18
Views: 852
Posted By ross
Why DMA unrelated? With fetchmode x4 the DMA...

Why DMA unrelated?
With fetchmode x4 the DMA slots are all 64bits wide back-to-back, so you saving 6 chip ram CPU/Blitter acces/line vs 128 colors.
Forum: OT - General 28 January 2019, 18:58
Replies: 83
Views: 2,515
Posted By ross
You took the wrong train, you had to take this: ...

You took the wrong train, you had to take this:
https://www.trenitalia.com/cms-file/immagini/trenitalia-img/le-frecce/416x359/416x359_FrecciaRossa-500.jpg

:p
Forum: OT - General 28 January 2019, 17:49
Replies: 83
Views: 2,515
Posted By ross
The off topic.

The off topic.
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