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Forum: Coders. Asm / Hardware Yesterday, 18:49
Replies: 14
Views: 771
Posted By AmigaHope
This is probably the MMU not behaving as it...

This is probably the MMU not behaving as it should because it's an EC part. =P The registers seem to work but it's not doing anything. The rest of the system works OK because the card is probably...
Forum: support.Hardware Yesterday, 18:28
Replies: 6
Views: 215
Posted By AmigaHope
btw unless you really need it, consider...

btw unless you really need it, consider downgrading any ethernet connection you have to 10-Base-T, even if you have a 100-Base-T card. Zorro III struggles with a 100 Megabit connection, and still...
Forum: support.Hardware Yesterday, 18:14
Replies: 9
Views: 159
Posted By AmigaHope
Check if the Agnus chip is seated correctly. Give...

Check if the Agnus chip is seated correctly. Give it a good push down with your finger. It's one of the most frequent causes of green screens. You could have jostled it when you applied pressure to...
Forum: Amiga scene 03 July 2020, 22:43
Replies: 45
Views: 1,820
Posted By AmigaHope
Back in the day those EA folding album sleeves...

Back in the day those EA folding album sleeves were a mark of quality. Almost every game EA released then was good. =P But yeah there were a few Amiga ports in the mix that were not exactly coded...
Forum: Amiga scene 03 July 2020, 03:00
Replies: 45
Views: 1,820
Posted By AmigaHope
Only the A1000 had a dog on the design team. The...

Only the A1000 had a dog on the design team. The A500 was made entirely by humans, thus the A1000 provides a greater sense of diversity in our more woke era.
Forum: support.Hardware 02 July 2020, 17:14
Replies: 21
Views: 725
Posted By AmigaHope
Absolutely, but that requires running software to...

Absolutely, but that requires running software to turn off the low pass filter, and at that point you can just run WhichAmiga or whatever to find out which Agnus you have.

Checking the color you...
Forum: Retrogaming General Discussion 02 July 2020, 01:28
Replies: 10
Views: 861
Posted By AmigaHope
I don't get why the STE was so bloody expensive....

I don't get why the STE was so bloody expensive. It included a couple of extra chips but they can't have been so expensive as to add 100 to the cost.
Forum: support.Hardware 01 July 2020, 22:29
Replies: 21
Views: 725
Posted By AmigaHope
For the purposes of switching between NTSC and...

For the purposes of switching between NTSC and PAL, all you need is to know is if you have an OCS or ECS Agnus. You can determine this using SysInfo, WhichAmiga, etc. If you are using AmigaOS 2.0 or...
Forum: support.Hardware 01 July 2020, 19:43
Replies: 21
Views: 912
Posted By AmigaHope
It would be awesome if it would bring forward the...

It would be awesome if it would bring forward the Indivision ECS feature of 100Hz output of 50Hz modes, thus allowing operation on displays that support 100Hz but not 50Hz. (There are many displays...
Forum: Coders. Asm / Hardware 29 June 2020, 21:57
Replies: 35
Views: 2,106
Posted By AmigaHope
Except both instructions do access memory as they...

Except both instructions do access memory as they both have to be fetched from memory, this being the issue with self-modifying code. My question is if the dispatch will execution instruction B in...
Forum: Coders. Asm / Hardware 29 June 2020, 19:47
Replies: 35
Views: 2,106
Posted By AmigaHope
OK. I know for sure the dispatch looks to see if...

OK. I know for sure the dispatch looks to see if the first instruction touches any of the registers or memory addresses used as data in the second instruction, and will not parallelize them if...
Forum: New to Emulation or Amiga scene 29 June 2020, 19:38
Replies: 10
Views: 740
Posted By AmigaHope
Yeah, the earliest viruses on the Amiga were...

Yeah, the earliest viruses on the Amiga were bootblock viruses. They'd mimic a normal AmigaOS bootblock, but insert the virus into memory (like TSR programs on MS-DOS) that would periodically run the...
Forum: support.Hardware 29 June 2020, 19:08
Replies: 21
Views: 725
Posted By AmigaHope
The two round black DIN connectors on the back...

The two round black DIN connectors on the back are an analog RGB input, and a digital RGBI input. Because this is an NTSC 1084S, there is no SCART input (although there is a breakout space for it). ...
Forum: support.Hardware 29 June 2020, 03:07
Replies: 21
Views: 725
Posted By AmigaHope
If you mean the 1084S, and you mean input, then...

If you mean the 1084S, and you mean input, then yes it can handle both NTSC and PAL frequencies *ON THE RGB INPUT*. You will need to adjust the vertical size/position dials when you switch to make...
Forum: Coders. Asm / Hardware 27 June 2020, 13:18
Replies: 35
Views: 2,106
Posted By AmigaHope
Does the second example I listed actually exist?...

Does the second example I listed actually exist? I don't think the superscalar dispatch will parallelize self-modifying code because it will see the dependency caused by the first instruction, unless...
Forum: Coders. Asm / Hardware 27 June 2020, 02:57
Replies: 35
Views: 2,106
Posted By AmigaHope
Why would you want to do this? Just as a means of...

Why would you want to do this? Just as a means of slowing down the CPU even more? AFAIK having superscalar on doesn't cause any compatibility problems with anything. Only possibility I can think of...
Forum: Amiga scene 25 June 2020, 17:29
Replies: 22
Views: 1,576
Posted By AmigaHope
Any change in the fortunes of Commodore in the...

Any change in the fortunes of Commodore in the 90's would have had to have started back in the 80's when Commodore was still a major player in the industry.

They needed forward-thinking leadership...
Forum: Coders. Asm / Hardware 25 June 2020, 13:11
Replies: 19
Views: 705
Posted By AmigaHope
Look, I get where you're coming from. There may...

Look, I get where you're coming from. There may well be some very early 68040 cards that do not set burst inhibit properly and instead rely entirely on cache control to avoid burst. This is a broken...
Forum: support.Hardware 25 June 2020, 12:47
Replies: 5
Views: 342
Posted By AmigaHope
Zorro III DMA is really touchy and few have...

Zorro III DMA is really touchy and few have implemented it, and only one card really mastered it (the Deneb).

Proper DMA on the A1200 via Budgie has never been figured out.

Moreover the whole...
Forum: Amiga scene 25 June 2020, 12:39
Replies: 22
Views: 1,576
Posted By AmigaHope
The Playstation didn't have particularly advanced...

The Playstation didn't have particularly advanced hardware. What was unique about it was its design of having a fast (albeit shit-quality) geometry transformation engine that had a fast...
Forum: Coders. Asm / Hardware 23 June 2020, 10:07
Replies: 19
Views: 705
Posted By AmigaHope
My 2 cents: Whenever I had to duplicate a...

My 2 cents:

Whenever I had to duplicate a chunk of memory for some reason (e.g. create a backup buffer of "original data" when I'm going to modify the original) as long as the data was bigger...
Forum: Retrogaming General Discussion 23 June 2020, 09:15
Replies: 967
Views: 137,417
Posted By AmigaHope
Any chance for a Linux build if you're doing a...

Any chance for a Linux build if you're doing a rewrite with Qt libraries? =)
Forum: support.Hardware 22 June 2020, 20:40
Replies: 5
Views: 342
Posted By AmigaHope
I highly recommend you use a DOM instead of...

I highly recommend you use a DOM instead of compactflash, you'll get better performance and better reliability.

Elbox was never clear about what their revisions did on FastATA, although at some...
Forum: Coders. Asm / Hardware 16 June 2020, 00:29
Replies: 19
Views: 705
Posted By AmigaHope
Sounds like there'd be a market in fixing these...

Sounds like there'd be a market in fixing these boards to add burst inhibit. Just some GALs piggbacked on that assert the line when it snoops an address matching chip and zorro space.
Forum: Nostalgia & memories 15 June 2020, 15:20
Replies: 8
Views: 864
Posted By AmigaHope
It got even crazier with xfloppy.device. 1.1M on...

It got even crazier with xfloppy.device. 1.1M on a DD 3.5" floppy. D=
Forum: Amiga scene 15 June 2020, 05:00
Replies: 6
Views: 731
Posted By AmigaHope
I used daigokai but I got crashes from time to...

I used daigokai but I got crashes from time to time. =(
Forum: Retrogaming General Discussion 14 June 2020, 02:25
Replies: 3
Views: 432
Posted By AmigaHope
It's more than that though, it's like saying if...

It's more than that though, it's like saying if the Amiga had the same GPU as the Neogeo you could probably make the Amiga do the same thing.

As I understand it, the Y-unit doesn't have hardware...
Forum: New to Emulation or Amiga scene 10 June 2020, 22:11
Replies: 17
Views: 827
Posted By AmigaHope
In Workbench 1.3, "Shell" opens a NEWCON:...

In Workbench 1.3, "Shell" opens a NEWCON: terminal, while "CLI" opens a CON: terminal. CON: is the terminal/shell built into the ROM, NEWCON: is a better terminal/shell that comes on disk in 1.3
...
Forum: New to Emulation or Amiga scene 10 June 2020, 22:03
Replies: 10
Views: 740
Posted By AmigaHope
Be aware that Disk A might have a virus on it,...

Be aware that Disk A might have a virus on it, and any non-write-protected disk you insert might get infected after you've booted from Disk A. The virus stays resident in memory even during...
Forum: Retrogaming General Discussion 09 June 2020, 12:58
Replies: 3
Views: 432
Posted By AmigaHope
Amiga A2410 games -- a worthy project?

Something occurred to me, C='s first graphics card for the Amiga, the A2410, was actually made with the ridiculously powerful (for the time) TIGA chipset. It was no dumb framebuffer, it was actually...
Forum: support.Hardware 09 June 2020, 01:15
Replies: 42
Views: 2,855
Posted By AmigaHope
Amiga Technologies A4000T should have a coin...

Amiga Technologies A4000T should have a coin battery that is a leaking risk but much less than the A4000 Varta batteries. (No idea about the few C= A4000T models)

But yeah the system definitely...
Forum: Coders. Asm / Hardware 09 June 2020, 00:59
Replies: 19
Views: 705
Posted By AmigaHope
I've never had any problem using MOVE16, ever. It...

I've never had any problem using MOVE16, ever. It either operates quickly on cached writes or stalls the CPU while the writes happen on uncached memory and at least saves instruction loads on...
Forum: Coders. Asm / Hardware 04 June 2020, 21:28
Replies: 15
Views: 2,485
Posted By AmigaHope
On the FPU end pretty much all the complex...

On the FPU end pretty much all the complex transcendental operations have been removed (e.g. trig functions). This change was made on the 040. The 040/060 FPU is a much simpler beast, which was...
Forum: Nostalgia & memories 31 May 2020, 00:17
Replies: 21
Views: 1,552
Posted By AmigaHope
Defender of the Crown was an Amiga original. ...

Defender of the Crown was an Amiga original.

Zak was a SCUMM game developed (like the other early SCUMM games) originally on the C64, not the Amiga.

Ummm but ZORK?! Zork goes back to the PDP-10...
Forum: Retrogaming General Discussion 31 May 2020, 00:05
Replies: 46
Views: 4,894
Posted By AmigaHope
Those are new games with cartridge hacks, but not...

Those are new games with cartridge hacks, but not unbelievable ones (e.g. Defender of the Crown would have been waaaay too expensive for that much ROM in 1979, but would be believable in 1983 if you...
Forum: support.Hardware 27 May 2020, 03:06
Replies: 15
Views: 479
Posted By AmigaHope
Slow RAM is memory on the Chip RAM bus that the...

Slow RAM is memory on the Chip RAM bus that the custom chipset can't access. You can't use it for sound/gfx etc. but since it's on the same bus as Chip RAM, the CPU still has to wait for cycles on...
Forum: Nostalgia & memories 24 May 2020, 07:27
Replies: 25
Views: 2,058
Posted By AmigaHope
Europe must have been a special place where they...

Europe must have been a special place where they could go on and get girlfriends instead of continuing on as adult loser nerds (who eventually get married way way later because they have money and a...
Forum: Retrogaming General Discussion 24 May 2020, 07:23
Replies: 324
Views: 22,500
Posted By AmigaHope
Do you use sprites to mask the transition pixels...

Do you use sprites to mask the transition pixels or does it just create a horrible fringe effect on every pixel?
Forum: Nostalgia & memories 22 May 2020, 22:25
Replies: 33
Views: 2,927
Posted By AmigaHope
We were just discussing Dungeon Master 2, which...

We were just discussing Dungeon Master 2, which runs fine on ECS (and OCS possibly?) but requires a 68020+ plus sufficient RAM. The sticker on the box said AGA, but it does not in fact require AGA.
Forum: support.WinUAE 22 May 2020, 22:02
Replies: 13
Views: 1,306
Posted By AmigaHope
Thanks for the compliment, but if I were you I...

Thanks for the compliment, but if I were you I don't know if I would bother. The Voodoo 2 is an overlay card that only renders 3D to a framebuffer that is then genlocked to whatever VGA card you have...
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