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Search: Posts Made By: DJ Mike
Forum: Coders. Asm / Hardware 01 August 2021, 18:03
Replies: 18
Views: 1,264
Posted By DJ Mike
It's OK, stand down. I need to eat humble pie for...

It's OK, stand down. I need to eat humble pie for focussing too much on the problem without being more discerning of settings!

I realised now that I didn't have Cycle Exact Full/DMA turned on,...
Forum: Coders. Asm / Hardware 01 August 2021, 17:18
Replies: 18
Views: 1,264
Posted By DJ Mike
Coincidentally, I'd had this exact same thought -...

Coincidentally, I'd had this exact same thought - and yes! Changing copperlist to wait until vpos 0 instead of vpos 255 fixes this slowdown. In fact, any vpos of $1e or less will fix this, but as...
Forum: Coders. Asm / Hardware 01 August 2021, 13:31
Replies: 18
Views: 1,264
Posted By DJ Mike
Thanks anyway though. The discussion is useful...

Thanks anyway though. The discussion is useful just to make sure I'm not missing obvious things I should look for when diagnosing this sort of problem. :)
Forum: Coders. Asm / Hardware 01 August 2021, 13:19
Replies: 18
Views: 1,264
Posted By DJ Mike
Not A5 - confirmed set to $dff000 every call.

Not A5 - confirmed set to $dff000 every call.
Forum: Coders. Asm / Hardware 01 August 2021, 13:13
Replies: 18
Views: 1,264
Posted By DJ Mike
Just saw this after my reply. Yes, that's an...

Just saw this after my reply. Yes, that's an interesting point I hadn't considered actually. If loading routine is modifying A5 then this routine won't be checking correct address. Will force that to...
Forum: Coders. Asm / Hardware 01 August 2021, 13:09
Replies: 18
Views: 1,264
Posted By DJ Mike
INTENA is set to $4018, so no other level 3 bits...

INTENA is set to $4018, so no other level 3 bits besides COPPER.
I looked for any other reads to $DFF01E/INTREQR and found none.
Heck, I put a watch on the entire DMA address space from $dff000 to...
Forum: Coders. Asm / Hardware 01 August 2021, 13:01
Replies: 18
Views: 1,264
Posted By DJ Mike
From WinUAE debugger - this is the original $6c...

From WinUAE debugger - this is the original $6c interrupt code:

000029C8 48e7 e0e0 MOVEM.L D0-D2/A0-A2,-(A7)
000029CC 302d 001e MOVE.W (A5,$001e) == $00dff01e,D0...
Forum: Coders. Asm / Hardware 01 August 2021, 12:51
Replies: 18
Views: 1,264
Posted By DJ Mike
Some extra tests I ran via WinUAE debugger and...

Some extra tests I ran via WinUAE debugger and observing visual heatmap :

- Skipping everything inside the IRQ code except INTREQ clear. No change - loading still slow. Game hangs when it reaches...
Forum: Coders. Asm / Hardware 01 August 2021, 11:33
Replies: 18
Views: 1,264
Posted By DJ Mike
Checked for reads to VP/VHPOSR - apart from my...

Checked for reads to VP/VHPOSR - apart from my empty DBF loop replacements (which I disabled to rule those out!), game doesn't appear to be reading these. I've also checked for any extra INTREQ reads...
Forum: Coders. Asm / Hardware 01 August 2021, 11:21
Replies: 18
Views: 1,264
Posted By DJ Mike
PAL picture mode, and 256 lines high by the looks...

PAL picture mode, and 256 lines high by the looks of things.

Checking for line waits in the main code is a good call - I will investigate this.
Forum: Coders. Asm / Hardware 01 August 2021, 10:34
Replies: 18
Views: 1,264
Posted By DJ Mike
COPPER interrupt causing slowdown - VERTB fine?

I've been investigating very slow load times in a game I'm patching in WHDLoad, and I've hit upon a strange situation I'm stumped by.

During loading, the game is mostly doing a lot of data...
Forum: Amiga scene 29 July 2021, 10:40
Replies: 15
Views: 2,585
Posted By DJ Mike
So it arrived with him and then went missing?

So it arrived with him and then went missing?
Forum: support.Apps 10 July 2021, 17:49
Replies: 12
Views: 1,324
Posted By DJ Mike
I've always been fascinated by disk protections...

I've always been fascinated by disk protections and longtracks and whatnot. As I understand it, the Amiga's built in floppy drive couldn't write longtracks as the controller won't physically pulse at...
Forum: Retrogaming General Discussion 10 July 2021, 14:17
Replies: 166
Views: 12,446
Posted By DJ Mike
I think the technology is evolving much as it...

I think the technology is evolving much as it ever did. However, in the 80s and 90s our imagination went way beyond what the technology could do - i.e. we were squeezing every last cycle out of the...
Forum: project.WHDLoad 10 July 2021, 13:26
Replies: 118
Views: 51,550
Posted By DJ Mike
I wasn't suggesting otherwise. :) But I do at...

I wasn't suggesting otherwise. :) But I do at least try to address issues if I can when I make patches, which I know you and other devs do as well.

However, 68040 seems to cause a particularly...
Forum: project.WHDLoad 09 July 2021, 17:53
Replies: 118
Views: 51,550
Posted By DJ Mike
Pardon my typo (early morning post) - I do mean...

Pardon my typo (early morning post) - I do mean dmaconr. :) I have edited original post.
Forum: Retrogaming General Discussion 09 July 2021, 16:43
Replies: 11
Views: 781
Posted By DJ Mike
I suspect this is related to the Chrome change...

I suspect this is related to the Chrome change that blocks insecure content being accessed from secure pages? (e.g. HTTP links will no longer work from a site running on HTTPS).

I've found Exotica...
Forum: project.WHDLoad 09 July 2021, 08:42
Replies: 118
Views: 51,550
Posted By DJ Mike
I'm interested in the problems with Wiz 'n' Liz....

I'm interested in the problems with Wiz 'n' Liz. I'm currently updating a few things about this patch. Unfortunately I don't have an 040 to see the problems with this. I did originally fix the blits...
Forum: support.Games 27 October 2014, 10:34
Replies: 9
Views: 1,728
Posted By DJ Mike
Ahh the Epic bundle... my first Amiga! Epic,...

Ahh the Epic bundle... my first Amiga!

Epic, Rome and Trivial Pursuit were HD installable - and had to be installed IIRC. They were specially produced for that bundle in a way which meant they...
Forum: support.WinUAE 31 December 2013, 11:11
Replies: 17
Views: 3,603
Posted By DJ Mike
That's curious - I tried CD32 version in WinUAE...

That's curious - I tried CD32 version in WinUAE with WHDLoad install and still got the buzzing sound.

Should point out that it's more intermittent than I thought though. Occasionally the sound...
Forum: support.WinUAE 30 December 2013, 23:07
Replies: 17
Views: 3,603
Posted By DJ Mike
Bamiga2002: That's interesting to know. I think...

Bamiga2002: That's interesting to know. I think the last time I played this on a real Amiga was my vanilla 1200... wonder if it would have the same issue with the Blizzard 030 I have now... Quite...
Forum: support.WinUAE 29 December 2013, 20:36
Replies: 17
Views: 3,603
Posted By DJ Mike
Sound issues in Roadkill A1200 in 2.7.0

Trying to run the disk version of Roadkill (IPF-sourced) in WinUAE and I'm getting some weird issues with the sound. The title music is fine but when you race around the track most of the sound...
Forum: Amiga scene 25 December 2013, 22:49
Replies: 335
Views: 47,156
Posted By DJ Mike
I'm delighted that this game finally made it out,...

I'm delighted that this game finally made it out, but must confess I'm quite astonished the finished product is only 2 disks large! I'd figured with all the hype it'd be more like 5, lol! :-)
Forum: Nostalgia & memories 06 November 2013, 10:56
Replies: 84
Views: 11,336
Posted By DJ Mike
I got Superfrog HD as part of the Humble Team 17...

I got Superfrog HD as part of the Humble Team 17 Sale that happened last week... Dreadful. Seriously, how can you screw up the playability of a platform game so badly? The screen/'camera' moves so...
Forum: News 05 November 2013, 16:35
Replies: 46
Views: 8,553
Posted By DJ Mike
I saw posts about this over the weekend and...

I saw posts about this over the weekend and immediately ordered a copy - very impressed. From an interview I read it sounds like it ended up being a very personal project for him given his Mum died...
Forum: support.Hardware 11 October 2013, 09:30
Replies: 9
Views: 1,289
Posted By DJ Mike
Thanks for the suggestions - have put in a thread...

Thanks for the suggestions - have put in a thread at AmiBay in case somebody has one to sell. :) Will check out that site although annoyingly our work's filter has blocked it for the time being...
Forum: support.Hardware 09 October 2013, 09:56
Replies: 9
Views: 1,289
Posted By DJ Mike
To be honest looking round the net it does seem...

To be honest looking round the net it does seem like the only 128MB boards that work are all too big and thus require fastening in place... think I need to invest in some plastic fasteners that won't...
Forum: support.Hardware 09 October 2013, 09:46
Replies: 9
Views: 1,289
Posted By DJ Mike
OK maybe I shouldn't write posts when half tired,...

OK maybe I shouldn't write posts when half tired, lol

I in fact have a Blizzard board not an Apollo (I had some serious fluff on the brain when I wrote that).

And to clarify, the board has had...
Forum: support.Hardware 08 October 2013, 15:41
Replies: 9
Views: 1,289
Posted By DJ Mike
Largest memory module for Blizzard 1260 that fits properly

I have an Apollo a Blizzard 1260 board I bought some years ago that has a 128MB memory module. While it works, the memory was fastened with rubber bands to keep it falling out of the slot, and also...
Forum: support.Hardware 02 October 2013, 00:47
Replies: 7
Views: 1,240
Posted By DJ Mike
I ended up transferring the lot by FTP to PC and...

I ended up transferring the lot by FTP to PC and then burning to a CD and transferring back after changing to the new CF drive. Thank goodness I still know my way around my old setup :-)
Forum: support.Hardware 27 September 2013, 22:56
Replies: 7
Views: 1,240
Posted By DJ Mike
I'll have a look when I'm back at home! I...

I'll have a look when I'm back at home!

I wonder - would IDEFix97 be a possible remedy in this circumstance or no good?
Forum: support.Hardware 27 September 2013, 22:42
Replies: 7
Views: 1,240
Posted By DJ Mike
Sadly while I think there are two jumpers on the...

Sadly while I think there are two jumpers on the back of the HDD I know not what they do! :( I've tried attaching the jumper from the CF to either but doesn't seem to have had an effect.
Forum: support.Hardware 27 September 2013, 21:06
Replies: 7
Views: 1,240
Posted By DJ Mike
Getting a compact flash and an old hard disk to work together on A1200

I've just bought a Compact Flash IDE-based drive from AmigaKit which I intend to replace my old 2.5" HDD on my A1200 with. However before that I'd really like to be able to transfer the files from my...
Forum: request.Old Rare Games 06 June 2010, 09:38
Replies: 32
Views: 3,568
Posted By DJ Mike
Yes I figured this might be the case, as I recall...

Yes I figured this might be the case, as I recall when I got it the disk had its write-protect tab locked down for writing so presumably high scores get stored to the disk.
Forum: request.Old Rare Games 22 May 2010, 20:28
Replies: 32
Views: 3,568
Posted By DJ Mike
IFW, I sent you a dump of Rock Challenge some...

IFW, I sent you a dump of Rock Challenge some time ago, never heard anything back - presume the disk was damaged in a way that you couldn't accept, or simply didn't get looked at. I could send the...
Forum: request.Old Rare Games 22 May 2010, 20:25
Replies: 101
Views: 18,648
Posted By DJ Mike
Whoa! 4mat on here too! :O Slightly...

Whoa! 4mat on here too! :O

Slightly off-topic... How involved were you with the integration of your music for Dizzy: Prince Of The Yolkfolk into the final product?

Every version of it I ever...
Forum: MarketPlace 25 November 2009, 22:48
Replies: 26
Views: 3,284
Posted By DJ Mike
Picture of Shadow Sorceror attached!

Picture of Shadow Sorceror attached!
Forum: MarketPlace 23 November 2009, 19:49
Replies: 26
Views: 3,284
Posted By DJ Mike
Apologies for the delayed replies - was away this...

Apologies for the delayed replies - was away this weekend after all.

Arkanoid is the budget version (I haven't come across a big box version if I do have one)

I have Shadow Sorceror to hand...
Forum: MarketPlace 18 November 2009, 13:21
Replies: 22
Views: 2,674
Posted By DJ Mike
Sell Clockwork Knight, Bubble Bobble and Sonic...

Sell Clockwork Knight, Bubble Bobble and Sonic Jam separately, each is worth about £10 if in excellent condition. The rest I'd bundle with the console.
Forum: MarketPlace 17 November 2009, 13:53
Replies: 26
Views: 3,284
Posted By DJ Mike
I myself as a buyer get put off by that - too...

I myself as a buyer get put off by that - too much information overload on an auction when all I really want to know is - "What's in it?" and "What's the condition?"

But maybe that's because I'm...
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