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Forum: Nostalgia & memories Today, 11:00
Replies: 11
Views: 238
Posted By ross
Vade retro! These are not Amiga bugs! ...

Vade retro!

These are not Amiga bugs!

:laughing
Forum: Nostalgia & memories Yesterday, 20:44
Replies: 11
Views: 238
Posted By ross
:great

:great
Forum: Nostalgia & memories Yesterday, 20:36
Replies: 11
Views: 238
Posted By ross
Just checked, module is not tampered, only badly...

Just checked, module is not tampered, only badly looped :D
Forum: Nostalgia & memories Yesterday, 20:19
Replies: 11
Views: 238
Posted By ross
Comment by Edvin: "Yes I know the 'note' in...

Comment by Edvin:

"Yes I know the 'note' in Monday sounds disturbing :), but this only appears when the module is replayed in the Company/Vision intro.

I was actually surprised myself when the...
Forum: Coders. Asm / Hardware 18 October 2018, 15:45
Replies: 17
Views: 407
Posted By ross
Thank you very much for the clarifications :great

Thank you very much for the clarifications :great
Forum: Coders. Asm / Hardware 18 October 2018, 15:27
Replies: 17
Views: 407
Posted By ross
Toni, what are the implications of this? You can...

Toni, what are the implications of this? You can use some dummy values for y positions?
Forum: Coders. Asm / Hardware 18 October 2018, 14:57
Replies: 17
Views: 407
Posted By ross
This is interesing 'cause you can mix DMA/manual...

This is interesing 'cause you can mix DMA/manual without trouble several times in the frame.


A xCTL write is due before the EV==line position (or this very same line if early on position).
Forum: Coders. Asm / Hardware 18 October 2018, 13:51
Replies: 17
Views: 407
Posted By ross
Ok, i've got the point. SPRxCTL need to be...

Ok, i've got the point.

SPRxCTL need to be ==line in value.
And the fetch really stop.

EDIT: ops Toni faster, thanks :)
Forum: Coders. Asm / Hardware 18 October 2018, 13:33
Replies: 17
Views: 407
Posted By ross
This is a solution, but it does not satisfy me...

This is a solution, but it does not satisfy me because it is a global condition and then you have to manage the remaining sprites manually...
Forum: Coders. Asm / Hardware 18 October 2018, 12:53
Replies: 17
Views: 407
Posted By ross
No, what I wrote is that (only for y position,...

No, what I wrote is that (only for y position, not counting the x behaviour):

if (SPREN==1) { //leave out in this context the interaction it has with BPLEN
on line 25 (PAL, 20 NTSC) DMA...
Forum: HOL news 18 October 2018, 10:19
Replies: 204
Views: 9,270
Posted By ross
Just noticed an s-s edited ADF by Retroplay into...

Just noticed an s-s edited ADF by Retroplay into the Zone!, for a cleaned and more "authentic" look.
Rightly removed the beta status since it seems to work completely.
Until an original comes out,...
Forum: Coders. Asm / Hardware 18 October 2018, 09:24
Replies: 17
Views: 407
Posted By ross
Well, logically it depends on what you write :) ...

Well, logically it depends on what you write :)
With proper EVx bits vertical position the fetch stop.

Otherwise a write to SPRxDATA, fetched by DMA on next line, rearm the sprite.

EDIT: this...
Forum: Coders. Asm / Hardware 17 October 2018, 17:11
Replies: 17
Views: 407
Posted By ross
Writing to SPRxCTL disables the corresponding...

Writing to SPRxCTL disables the corresponding sprite.
So wait for the desired line, then write.
Forum: Coders. General 15 October 2018, 16:41
Replies: 16
Views: 526
Posted By ross
When you write in assembly you can't trascure...

When you write in assembly you can't trascure anything, the devil is in the detail..


Yes and no.. i've detailed the reason behind this value.
Need to be as low as possible (for the slow...
Forum: Coders. Asm / Hardware 15 October 2018, 12:30
Replies: 539
Views: 16,311
Posted By ross
Ok, thanks. So unfortunately is not a general...

Ok, thanks. So unfortunately is not a general solution :(.
Forum: Coders. Asm / Hardware 15 October 2018, 11:19
Replies: 539
Views: 16,311
Posted By ross
Hi Don, that I know the only way to open...

Hi Don, that I know the only way to open dos.library is using OpenLibrary() [or OldOpenLibrary() for a generic version open with only two bytes saved].
Or maybe exist some obscure BCPL programming...
Forum: Coders. General 15 October 2018, 10:51
Replies: 16
Views: 526
Posted By ross
The habit of making CPU timed wait was...

The habit of making CPU timed wait was embarrassing even on early '80...
There is so much precise time sources on Amiga: CIA E-clock, CIA hsync, CIA TOD, VPOS, VBL, BUS C2, is practically all...
Forum: Coders. General 15 October 2018, 09:18
Replies: 16
Views: 526
Posted By ross
So you can understand why it is not possible to...

So you can understand why it is not possible to create a "real" patch without a little deeper knowledge.

Not only in the loader there are problems with fast processors but in various parts of the...
Forum: Coders. General 15 October 2018, 09:11
Replies: 16
Views: 526
Posted By ross
You did not look carefully at my code.. I've...

You did not look carefully at my code..
I've used tst.l d0. When this can become negative? Only if "time-out" time has passed!

I've only described the tricky part, not the trivial..
Forum: project.CD32 Conversion 14 October 2018, 23:39
Replies: 12
Views: 309
Posted By ross
Whooaa! Super! Thanks jotd.

Whooaa! Super!

Thanks jotd.
Forum: Coders. Asm / Hardware 14 October 2018, 23:32
Replies: 6
Views: 300
Posted By ross
No description, but there is some "0000"...

No description, but there is some "0000" patterns.
In the past I had done tests using 4 "0" in a row and worked, only you had to use right precompensation on writing otherwise you had problems on...
Forum: Coders. Asm / Hardware 14 October 2018, 23:05
Replies: 6
Views: 300
Posted By ross
Both non-regular MFM encoding and practically...

Both non-regular MFM encoding and practically standard track length (Nitro==$189d DMA words, floppy.device inevitably standard).
Forum: Coders. General 14 October 2018, 15:11
Replies: 16
Views: 526
Posted By ross
Ok, got some time now to comment my code. With...

Ok, got some time now to comment my code.
With a superficial look you can ask: "is not your code also cpu dependent?"
Response: "no, or better only relatively!"

This code is internal BUS timing...
Forum: Coders. General 14 October 2018, 13:10
Replies: 16
Views: 526
Posted By ross
I suppose you want an in-line solution, so you...

I suppose you want an in-line solution, so you have to do some trick.

I'm in hurry, so no comment added, but maybe later I make some.

00010D86 61C6 bsr.b $10d4e...
Forum: Coders. Asm / Hardware 14 October 2018, 10:03
Replies: 6
Views: 300
Posted By ross
Hi NorthWay, check some Psygnosis title for a...

Hi NorthWay, check some Psygnosis title for a 'dense' MFM (Nitro come to my mind).

Or a different 'trackdisk.device' (I dont remember the name..) that give you 14 sectors/track.


EDIT:
...
Forum: Coders. General 14 October 2018, 09:45
Replies: 16
Views: 526
Posted By ross
A wrong way to check that the track has been read...

A wrong way to check that the track has been read completely.

You exit from dbne.w d0,10d8c in two way:
- if d0 underflow (so when a fixed amount of cycles passed, mulu is here to waste cycles)...
Forum: support.WinUAE 11 October 2018, 20:30
Replies: 39
Views: 1,860
Posted By ross
Generated by code (that's also could mean a...

Generated by code (that's also could mean a crappy programming environment). And parts of it inserted without much logic..

EDIT: probably OT but, last night I had a crash dump (and no exit from...
Forum: support.WinUAE 11 October 2018, 19:41
Replies: 39
Views: 1,860
Posted By ross
You have no idea how often you have to patch code...

You have no idea how often you have to patch code that works only accidentally or in very particular conditions (race between processor, copper, blitter, hw registers write).
The Amiga system is...
Forum: support.WinUAE 11 October 2018, 19:08
Replies: 39
Views: 1,860
Posted By ross
Very well, i'll remove "glitch maker" Bograts...

Very well, i'll remove "glitch maker" Bograts from the Zone.
:great


Latest WinUAE versions are a magnitude more precise than earlier versions.
Like Toni said is only accidental that worked in...
Forum: support.WinUAE 10 October 2018, 23:46
Replies: 39
Views: 1,860
Posted By ross
Into the Zone: Bograts disk 1 with 4703 change...

Into the Zone: Bograts disk 1 with 4703 change (for real machine glitch detection).
I can make very fast a 4705 change.
Forum: support.WinUAE 10 October 2018, 21:58
Replies: 39
Views: 1,860
Posted By ross
Ok, yes, then there is a tight race condition,...

Ok, yes, then there is a tight race condition, sorry for the speculation.
Forum: support.WinUAE 10 October 2018, 21:36
Replies: 39
Views: 1,860
Posted By ross
Toni, could i've not understood the problem here,...

Toni, could i've not understood the problem here, but why WinUAE open the DIW before the x comparator match?

If I wait 4701 and write DMACON and DIWSTRT, then at near x==$C there is a new valid...
Forum: support.WinUAE 10 October 2018, 17:35
Replies: 72
Views: 14,904
Posted By ross
ahah great, just tested it ;) EDIT: Toni's...

ahah great, just tested it ;)

EDIT: Toni's crystal ball improves day to day :D
Forum: support.WinUAE 10 October 2018, 17:13
Replies: 72
Views: 14,904
Posted By ross
Sorry Toni, another strangeness, only in very...

Sorry Toni, another strangeness, only in very last winuae.7z.

This time from an extreme overscan, but valid PAL hi-res WB config. (in fact I use this and noticed there).
I replicated the same DDF...
Forum: support.WinUAE 09 October 2018, 21:41
Replies: 72
Views: 14,904
Posted By ross
:great

:great
Forum: support.WinUAE 09 October 2018, 10:07
Replies: 72
Views: 14,904
Posted By ross
Hi Toni, subpixel emulation doesn't open right...

Hi Toni, subpixel emulation doesn't open right border.

Total senseless and messy exe attached.
Quickstart A1200 (but everything 020+/AGA is good).
Left/right mouse button change BPLCON1.
Forum: Coders. Asm / Hardware 08 October 2018, 23:27
Replies: 10
Views: 345
Posted By ross
With KS1.3 512KB chip-ram, Z2 RAM, DF1 online,...

With KS1.3 512KB chip-ram, Z2 RAM, DF1 online, you've ~420KiB usable (just checked :))
It's the worst situation, you've supervisor stack, exec and expansion in chip ram.
Forum: Coders. Asm / Hardware 08 October 2018, 22:40
Replies: 10
Views: 345
Posted By ross
Ok, then it is possible that it happens. The...

Ok, then it is possible that it happens.
The reason is that in some configurations the supervisor stack, and/or exec.library and the expansion.library can be located in chip mem (especially...
Forum: Coders. Asm / Hardware 08 October 2018, 19:01
Replies: 10
Views: 345
Posted By ross
Hi Dan, this is strange.. You sure there isn't...

Hi Dan, this is strange..
You sure there isn't some _c sections?
Can you upload somewhere the exe? (can suffice only the header if you want)

There is no difference between slow(ranger) RAM and...
Forum: HOL news 07 October 2018, 12:12
Replies: 204
Views: 9,270
Posted By ross
Sure: 1) researching for an alternative source...

Sure:
1) researching for an alternative source for the game background (mac or atari)
2) no dump available but I've found a compact disk for Atari ST [Automation Menu Disk 042 (1989)(LSD - Was -Not...
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