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Forum: Coders. Asm / Hardware Yesterday, 17:23
Replies: 14
Views: 351
Posted By grond
Are you sure your assembler didn't convert them...

Are you sure your assembler didn't convert them to PC-relative variants which it then shrunk to the smallest constant offset operand size it could? Then both .w and .l variants would have resulted in...
Forum: Retrogaming General Discussion 22 April 2021, 11:28
Replies: 66
Views: 4,031
Posted By grond
Yes, I know. For all I know the 040 FPU is so...

Yes, I know. For all I know the 040 FPU is so much faster than the 881/882 that even the instructions that were dropped are faster on the 040 than in the old FPUs. Moreover, the 060 supports the same...
Forum: News 21 April 2021, 21:49
Replies: 145
Views: 9,450
Posted By grond
With regard to the Vampires, it might be worth...

With regard to the Vampires, it might be worth testing it on the V500 which has the newest core. I'm pretty sure there was a change to the FPU in that core which means it should have the most recent...
Forum: Retrogaming General Discussion 21 April 2021, 08:22
Replies: 66
Views: 4,031
Posted By grond
The 060 can also take heavy hits in comparison to...

The 060 can also take heavy hits in comparison to the 040 if long MUL and DIV instructions are used. It's a pity there never was an 070 with the missing instructions.
Forum: Nostalgia & memories 20 April 2021, 17:47
Replies: 21
Views: 1,228
Posted By grond
In this way they could avoid anti-monopoly...

In this way they could avoid anti-monopoly measures. For some years it looked like authorities were going to split Microsoft into an OS company on the one hand and into an office software company on...
Forum: Retrogaming General Discussion 20 April 2021, 15:13
Replies: 66
Views: 4,031
Posted By grond
Perhaps the 030 is held in such high esteem...

Perhaps the 030 is held in such high esteem because it was the last 68k generation that was easily up to par with the x86 alternative. The 040 was a good processor on the outside but heat problems...
Forum: Nostalgia & memories 20 April 2021, 15:06
Replies: 21
Views: 1,228
Posted By grond
When my mother made the step from a mechanical...

When my mother made the step from a mechanical typewriter to a computer for her scientific publishing work in the early 90s, I recommended buying a Mac. It was clearly the best choice for the usecase...
Forum: support.WinUAE 20 April 2021, 10:18
Replies: 11
Views: 822
Posted By grond
Your computer obviously has six CPU cores which...

Your computer obviously has six CPU cores which is why one 100% of one CPU shows as 16% in the Windows Task Manager. As said multiple times, the CPU usage indicator in WinUAE shows the load of one PC...
Forum: Amiga scene 16 April 2021, 13:41
Replies: 480
Views: 33,673
Posted By grond
That's obvious, isn't it? It's not like each...

That's obvious, isn't it? It's not like each semiconductor manufacturer has to develop their own process, there are companies that do that. It was only towards the end of the millenium that companies...
Forum: Coders. Asm / Hardware 15 April 2021, 17:35
Replies: 10
Views: 789
Posted By grond
I don't think it would be that much because it is...

I don't think it would be that much because it is just 1 bitplane. The good thing is that you can create the content of this memory from very little storage space on the disk. You just need the text...
Forum: Coders. Asm / Hardware 15 April 2021, 16:23
Replies: 10
Views: 789
Posted By grond
I guess you just need one highres image of the...

I guess you just need one highres image of the text (which you can create on the fly using a font and ascii text) and then shrink it in many steps. Store the precalc shrunk images (it's 1 bitplane...
Forum: Amiga scene 09 April 2021, 21:58
Replies: 480
Views: 33,673
Posted By grond
@TEG: a second diffusion layer is what you need...

@TEG: a second diffusion layer is what you need to progress from NMOS to CMOS technology. CMOS is a thing of the late 1970s and has the big advantage of being vastly more power efficient than NMOS...
Forum: Amiga scene 09 April 2021, 18:07
Replies: 480
Views: 33,673
Posted By grond
This is not correct. Yes, it becomes increasingly...

This is not correct. Yes, it becomes increasingly difficult to produce chips as the transistor size reduces. However, yield actually improves with shrinking because the same design on a smaller area...
Forum: Amiga scene 03 April 2021, 15:01
Replies: 480
Views: 33,673
Posted By grond
If one thinks it wise to move the Amiga into the...

If one thinks it wise to move the Amiga into the C64-market, then an A300 without IDE and PCMCIA would have made sense. However, that essentially meant giving up on the idea of staying competitive...
Forum: Amiga scene 02 April 2021, 16:44
Replies: 480
Views: 33,673
Posted By grond
We had that already. 2.5" hdds cost about 2.5x as...

We had that already. 2.5" hdds cost about 2.5x as much as they same capacity in a 3.5" form factor.







By 1996 Commodore should have sold 040-based Amigas as minimum configuration. How...
Forum: Amiga scene 02 April 2021, 09:48
Replies: 480
Views: 33,673
Posted By grond
AGA didn't exist when the A600 was designed. And...

AGA didn't exist when the A600 was designed. And ECS added productivity modes which should have been accompanied by a wider chipmem bus and a faster CPU just as in the A3000.
Forum: Amiga scene 01 April 2021, 21:12
Replies: 480
Views: 33,673
Posted By grond
I still don't see any convincing reason the A600...

I still don't see any convincing reason the A600 had to be so small that you could only fit ridiculously expensive laptop hdds (into a desktop computer!) and couldn't fit a full featured expansion...
Forum: support.Hardware 31 March 2021, 13:03
Replies: 19
Views: 1,426
Posted By grond
Gold3 has not been abandoned, work on it will...

Gold3 has not been abandoned, work on it will resume once the V4 reimplementation of AGA is 100% accurate.

I use a small FullHD TV with my V1200 that has both HDMI and SCART inputs. Amiga RGB...
Forum: Amiga scene 26 March 2021, 14:23
Replies: 480
Views: 33,673
Posted By grond
How many were "a few years"? I was looking at...

How many were "a few years"? I was looking at PCMCIA network cards when I already had switched to a laptop PC in 1997 and they still cost 400DM. I had bought the A600 new in 1993 (i.e. four years...
Forum: Amiga scene 25 March 2021, 12:11
Replies: 480
Views: 33,673
Posted By grond
Yes, but that's the only way to do it in the...

Yes, but that's the only way to do it in the A600. The problem is with the A600, not with those accelerators.
Forum: Retrogaming General Discussion 25 March 2021, 10:21
Replies: 194
Views: 10,738
Posted By grond
The way the story is usually told it was mostly a...

The way the story is usually told it was mostly a time saving exercise because they wanted to beat the Amiga to market. The MIDI ports were a last minute addition to compensate for the poor inbuilt...
Forum: Coders. General 25 March 2021, 09:48
Replies: 107
Views: 10,333
Posted By grond
And that was precisely when they only had the...

And that was precisely when they only had the A600 to offer as an "upgrade" over the A500 (cross-reference to the "thrive"-thread). I don't think Commodore couldn't have done better at that point in...
Forum: Amiga scene 25 March 2021, 09:37
Replies: 480
Views: 33,673
Posted By grond
The market and most Amiga-users certainly...

The market and most Amiga-users certainly disagreed. PCMCIA was superfluous at the time as there were hardly any expansions available for it and they cost so much that you would have been better off...
Forum: Amiga scene 23 March 2021, 10:40
Replies: 480
Views: 33,673
Posted By grond
I only got an Amiga in 1993 when there weren't...

I only got an Amiga in 1993 when there weren't many active users around any more from whom I could have copied games. I therefore used to rent games and copy them but the copies often didn't work...
Forum: Amiga scene 22 March 2021, 13:29
Replies: 480
Views: 33,673
Posted By grond
Two of my children actually do look at my Amigas...

Two of my children actually do look at my Amigas and find them interesting. They even like to play games. One interesting thing is that my son played some games on his buddy's PS4 and still also...
Forum: Coders. Asm / Hardware 19 March 2021, 21:46
Replies: 74
Views: 4,494
Posted By grond
You could set up the return address before...

You could set up the return address before installing the irq handler. Then again each time you enter the main loop.





I wouldn't be surprised if both methods were the same on 020/030 but...
Forum: Coders. Asm / Hardware 19 March 2021, 19:42
Replies: 74
Views: 4,494
Posted By grond
I don't need to guess, I know what happens....

I don't need to guess, I know what happens. That's why the first thing the proposed routine would do is to push its start address onto the stack again.




Yes, but how are cycle counts for that...
Forum: Coders. Asm / Hardware 19 March 2021, 19:21
Replies: 74
Views: 4,494
Posted By grond
True. You could push the entry of your main loop...

True. You could push the entry of your main loop onto the stack and JMP into the subroutines. The subroutines would then do a RTS on exit. If an interrupt happened, the minimal interrupt handler...
Forum: Amiga scene 19 March 2021, 19:14
Replies: 480
Views: 33,673
Posted By grond
I find it strange that the Amiga was originally...

I find it strange that the Amiga was originally intended to become a console and then was turned into a computer because of the US American console crisis but for some reason the popularity of...
Forum: Coders. Asm / Hardware 19 March 2021, 15:33
Replies: 74
Views: 4,494
Posted By grond
If you are always doing the JSR from the same...

If you are always doing the JSR from the same place, your minimal interrupt handler could replace the return address on the stack with the entry address of the extended service code such that the JSR...
Forum: Amiga scene 18 March 2021, 14:44
Replies: 480
Views: 33,673
Posted By grond
Who'll look up his address while the rest of us...

Who'll look up his address while the rest of us go fetch our pitchforks? :spin
Forum: support.Hardware 18 March 2021, 14:41
Replies: 40
Views: 2,917
Posted By grond
Right now? In present tense?

Right now? In present tense?
Forum: Amiga scene 18 March 2021, 10:19
Replies: 480
Views: 33,673
Posted By grond
You are talking about the crippled 16bit ECS...

You are talking about the crippled 16bit ECS Commodore put into the A500+ and the A600 and not the full 32bit chipmem bus ECS of the A3000, right?
Forum: Amiga scene 18 March 2021, 10:16
Replies: 480
Views: 33,673
Posted By grond
This is an obvious but nontheless interesting...

This is an obvious but nontheless interesting point. The Mac comes from an era where differences between platforms were still based very much on differences in hardware, barely survived because of...
Forum: Amiga scene 18 March 2021, 10:03
Replies: 480
Views: 33,673
Posted By grond
And they simply wouldn't exist for the Amiga if...

And they simply wouldn't exist for the Amiga if Commodore hadn't aimed for high-margin sales with the A3000. After the A3000 flopped saleswise, Commodore continued to make ECS-Amigas again with only...
Forum: Amiga scene 17 March 2021, 18:33
Replies: 480
Views: 33,673
Posted By grond
I have enjoyed this thread and didn't find it...

I have enjoyed this thread and didn't find it trollish. I found the "evidence" of the contemporary word processors and spreadsheet programs posted above very interesting. It sure shows that the Amiga...
Forum: Amiga scene 17 March 2021, 14:36
Replies: 480
Views: 33,673
Posted By grond
I would assume that lines were doubled vertically...

I would assume that lines were doubled vertically to maintain aspect ratio on today's monitors.
Forum: Amiga scene 17 March 2021, 12:57
Replies: 480
Views: 33,673
Posted By grond
Because the high-resolution and VGA compatibility...

Because the high-resolution and VGA compatibility that ECS and the flickerfixer offered targeted the high-margin productivity market and only that needed a faster CPU. Without these better...
Forum: Amiga scene 16 March 2021, 17:56
Replies: 480
Views: 33,673
Posted By grond
If Commodore had thought like that, we would...

If Commodore had thought like that, we would never have seen the A3000 (for which ECS was implemented aiming at high-end professional users) nor A4000 and wouldn't have progressed beyond a 7MHz 68000...
Forum: Amiga scene 16 March 2021, 14:02
Replies: 480
Views: 33,673
Posted By grond
Hehehe. AGA was the stuff we cared about but not...

Hehehe. AGA was the stuff we cared about but not relevant at all for the boring work stuff. Even today there is no reason to use more than a few colours for productivity stuff. Resolution on the...
Showing results 1 to 40 of 1019

 
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