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Forum: Coders. Asm / Hardware Today, 17:13
Replies: 49
Views: 571
Posted By ross
:great This make sense (I have absolutely no...

:great

This make sense (I have absolutely no idea if they correspond to some existing format so I inserted what could be..):


Can you make a raw GCR file (4us, ~$1900 byte) for the track?...
Forum: Coders. Asm / Hardware Today, 12:10
Replies: 49
Views: 571
Posted By ross
$cc,$96,$aa

$cc,$96,$aa
Forum: Coders. Asm / Hardware Today, 11:07
Replies: 49
Views: 571
Posted By ross
Good :cool, you can reverse this? (from a...

Good :cool, you can reverse this? (from a kryoflux raw file to a 4us cells raw file)
Forum: Coders. Asm / Hardware Today, 10:38
Replies: 11
Views: 342
Posted By ross
Hi roondar, can you try without 32bit mode but...

Hi roondar, can you try without 32bit mode but only double CAS? (FMODE=B then FMODE=3).
Yes, you can cover only 128bit but it's just to help Toni to make a precise AGA emulation (seems that the...
Forum: Coders. Asm / Hardware Today, 09:47
Replies: 49
Views: 571
Posted By ross
Maybe even those who own the original sometimes...

Maybe even those who own the original sometimes get the message with the request to insert the original due to the unreliability of the reading :)
Forum: Coders. General Today, 09:34
Replies: 5
Views: 123
Posted By ross
Or, if you want to make some test and mod before...

Or, if you want to make some test and mod before the crunch, use this:
http://www.whdload.de/docs/en/reloc.html
Forum: support.WinUAE Yesterday, 18:09
Replies: 11
Views: 859
Posted By ross
Ok, I accept the illogicality :D Thanks!

Ok, I accept the illogicality :D

Thanks!
Forum: Coders. Asm / Hardware Yesterday, 17:52
Replies: 49
Views: 571
Posted By ross
..and these are the moments when not having a...

..and these are the moments when not having a real Amiga is sad..
Forum: Coders. Asm / Hardware Yesterday, 17:29
Replies: 49
Views: 571
Posted By ross
Many many years ago I made some tests to see what...

Many many years ago I made some tests to see what the limitations of the MFM were and I remember that I did not have big problems to put even 4 zeros in a row.
In theory the MFM allows to put...
Forum: Coders. Asm / Hardware Yesterday, 12:35
Replies: 49
Views: 571
Posted By ross
Like Toni suggested is highly unlikely that Paula...

Like Toni suggested is highly unlikely that Paula implement a GCR logic (like that MFM in fact..) but only the SYNC handling.
We need to know how MSBSYNC act, so we need a proper cleaned 4us flux...
Forum: Coders. Tutorials Yesterday, 12:11
Replies: 28
Views: 8,574
Posted By ross
Just Looked at input.asm: good and compact...

Just Looked at input.asm: good and compact routine, very similar to mine (i've to look at SG source more often!). :great

You have opted for 'interior' CIA wait, I've an 'exterior' wait (I start a...
Forum: Coders. Tutorials Yesterday, 09:08
Replies: 28
Views: 8,574
Posted By ross
Thanks Photon. Anyway, one more reason not...

Thanks Photon.

Anyway, one more reason not to use the wait by scanlines wait.
Too many time lost..


The very same reason 'cause on my loader I blindly wait :(

Cheers :great
Forum: Coders. Asm / Hardware Yesterday, 08:47
Replies: 11
Views: 342
Posted By ross
There is not enough DMA available for a 32...

There is not enough DMA available for a 32 colours FG. Narrowing the display could work but how tight would become? Probably too much for every game..

Well, potentially you could make a totally...
Forum: Coders. System 22 September 2018, 23:50
Replies: 8
Views: 217
Posted By ross
I have been more brutal: boot without s-s, CLI,...

I have been more brutal: boot without s-s, CLI, then WinUAE debugger and Tm command :D
It's a rough estimate, but a good one.
Forum: Coders. Asm / Hardware 22 September 2018, 23:43
Replies: 11
Views: 342
Posted By ross
Great 'racing the beam' :great +1 for the...

Great 'racing the beam' :great

+1 for the article, source and video.

Yes, a bit expensive on DMA and memory ;)

Cheers.
Forum: support.WinUAE 22 September 2018, 23:18
Replies: 16
Views: 1,400
Posted By ross
No, is enabled by default.. :sad

No, is enabled by default..

:sad
Forum: Coders. System 22 September 2018, 23:14
Replies: 8
Views: 217
Posted By ross
Bare A1200, KS3.0, DF0 solo: 00000400 10 -10...

Bare A1200, KS3.0, DF0 solo:
00000400 10 -10 chip memory
Attributes 0703 First 0000d0f8 Lower 00000420 Upper 00200000 Free 1939064
Largest: 00025308-001fe800,00000000,001d94f8 (1938680)

With...
Forum: support.WinUAE 22 September 2018, 22:58
Replies: 16
Views: 1,400
Posted By ross
END+F12 works? I started using this because it...

END+F12 works?
I started using this because it does not trigger Lev2 IRQ on Amiga.

But sure Toni can help you :)
Forum: support.WinUAE 22 September 2018, 22:38
Replies: 16
Views: 1,400
Posted By ross
Hi dissident, try latest beta. I had the same...

Hi dissident, try latest beta.
I had the same problem in some 4.0 version.
Forum: Coders. Tutorials 22 September 2018, 22:35
Replies: 28
Views: 8,574
Posted By ross
Heck! 200 µs.. Well, i use CIA timer so is a...

Heck! 200 µs..

Well, i use CIA timer so is a simple value change, but this keyboard is totally out of specs!
Forum: Coders. Asm / Hardware 22 September 2018, 21:38
Replies: 526
Views: 54,691
Posted By ross
Ok, you code is a must like i've guessed, I had...

Ok, you code is a must like i've guessed, I had no doubt about it ;)
But this cruncher is on another level: match with repeated offset and the even offset make too much difference.
There is a...
Forum: support.WinUAE 22 September 2018, 20:03
Replies: 11
Views: 859
Posted By ross
Ok, great options. But what's the problem...

Ok, great options.

But what's the problem with my command line?
I made a "mustchange" event (changing a memory value, with CPU or Blitter), nothing happens.
Forum: support.WinUAE 22 September 2018, 18:56
Replies: 11
Views: 859
Posted By ross
I'm not opening a new thread for this... How...

I'm not opening a new thread for this...

How can I interpret the "mustchange" for the w command?
w <num> <address> <length> <R/W/I/F/C> [<value>[.x]] (read/write/opcode/freeze/mustchange).

I...
Forum: Coders. Tutorials 22 September 2018, 18:16
Replies: 28
Views: 8,574
Posted By ross
What's the difference? Timing for the handshake? ...

What's the difference? Timing for the handshake?
(on my routine I wait 85us)
Forum: Coders. Asm / Hardware 22 September 2018, 18:02
Replies: 12
Views: 284
Posted By ross
Toni, so code like this with BLTPRI=1 can totally...

Toni, so code like this with BLTPRI=1 can totally avoid a blitter-wait?:

(a6=custombase)
tst.w (a6)
tst.w (a6)
tst.w (a6)

move.w #something,blitter_reg(a6)
Forum: Coders. Asm / Hardware 22 September 2018, 17:46
Replies: 12
Views: 284
Posted By ross
The key is where the blitter wait is :) If...

The key is where the blitter wait is :)

If you do the wait before the blit (how indeed it must be done), then you actually change color (the yellow) practically immediately.

If you are doing...
Forum: Coders. Asm / Hardware 22 September 2018, 17:09
Replies: 12
Views: 284
Posted By ross
This is technically impossible. Are you sure...

This is technically impossible.

Are you sure you're not reading the timing while the blitter is still running?
Remember that with BLTPRI=0 the processor has interleaved cycles with blitter on...
Forum: Coders. Asm / Hardware 22 September 2018, 17:01
Replies: 12
Views: 284
Posted By ross
There are fast processors (with ICache), so you...

There are fast processors (with ICache), so you can end-up writing to blitter registers before BBUSY is set-up by blitter logic, so beware..
A blitter-wait, or something that has the same effect,...
Forum: Coders. Asm / Hardware 22 September 2018, 15:29
Replies: 12
Views: 284
Posted By ross
Yes, the BLTPRI bit could change completely your...

Yes, the BLTPRI bit could change completely your coding style and flow.
The same difference to thinking single task or multitask (it is not always true because many blitter modes do not use all the...
Forum: Coders. Tutorials 22 September 2018, 15:14
Replies: 28
Views: 8,574
Posted By ross
And also if you want to be system compliant,...

And also if you want to be system compliant, using input.device, is not so hard ;)
Forum: request.Apps 22 September 2018, 15:10
Replies: 3
Views: 108
Posted By ross
Hi jarre, search for resource606 on eab ftp. ...

Hi jarre, search for resource606 on eab ftp.

There are legends that say there is a version 7 existing, but probably is a private build..

Cheers :)
Forum: Coders. Asm / Hardware 22 September 2018, 14:53
Replies: 12
Views: 284
Posted By ross
Hi geezer, only some hint because the solutions...

Hi geezer, only some hint because the solutions can be vary and sometimes not so productive.

Practically what you want to avoid is the blitter wait code.

You can simply compute/create/fill a...
Forum: Coders. Asm / Hardware 22 September 2018, 13:54
Replies: 49
Views: 571
Posted By ross
wow, this is MUCH better than Abacus description!...

wow, this is MUCH better than Abacus description!
And on page 3-8 there is a sync mechanism that's practically the same I've guessed.
So two thing:
- some sync bits are inserted in DMA write like...
Forum: Coders. Asm / Hardware 21 September 2018, 21:17
Replies: 49
Views: 571
Posted By ross
Thanks Denis. But i've no idea how to parse a...

Thanks Denis.
But i've no idea how to parse a raw kryoflux dump :nervous
I pass the ball to Toni.

Could be useful a 4us cells "fake MFM" conversion (and then bit-level parsing this).
What...
Forum: Coders. Asm / Hardware 21 September 2018, 20:13
Replies: 49
Views: 571
Posted By ross
uh, reading this makes me think I did not...

uh, reading this makes me think I did not understand GCR at all..
Forum: Coders. Asm / Hardware 21 September 2018, 20:03
Replies: 49
Views: 571
Posted By ross
But we are neglecting the simplest thing...

But we are neglecting the simplest thing possible.
Writing a track in GCR with a sequence FF>"0">"1"value on real Amiga and see if it syncs on read :)
It could also be that the CTraw track is not...
Forum: Coders. Asm / Hardware 21 September 2018, 19:48
Replies: 49
Views: 571
Posted By ross
FF<"0"? (there are some "00">"1"value in...

FF<"0"?

(there are some "00">"1"value in apple '6 and 2' GCR encoding but better focus on normal single "0" encoding)
Forum: Coders. Asm / Hardware 21 September 2018, 19:27
Replies: 49
Views: 571
Posted By ross
Sure, but if I had to decide how to code a 'sync...

Sure, but if I had to decide how to code a 'sync to MSB' I would do this:
- maximum number of 1 bits consecutive allowed in coding for 1 byte (FF)
- a 0 to invalidate the sequence making an...
Forum: Coders. Asm / Hardware 21 September 2018, 19:14
Replies: 49
Views: 571
Posted By ross
Can possibly be only 8 one bits? Then if next bit...

Can possibly be only 8 one bits? Then if next bit 0 -> sync found and data written by DMA. (9 one bits seems to be a valid normal sequence)
Sure zero is not inserted by DMA because first byte check...
Forum: Coders. Asm / Hardware 21 September 2018, 18:26
Replies: 49
Views: 571
Posted By ross
Actually the GCR read (track 50) on CTraw image...

Actually the GCR read (track 50) on CTraw image doesn't work (or better, works but the data read is invalid). If you skip the check the game works properly.
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