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Forum: Amiga scene Yesterday, 07:00
Replies: 499
Views: 45,872
Posted By Bruce Abbott
I don't think a TCP/IP stack should be included,...

I don't think a TCP/IP stack should be included, since one can easily be added if required. And definitely not if it's just a rehashed AmiTCP.

A GUI for diskdoctor also seems pointless (but hey,...
Forum: Amiga scene 23 May 2020, 01:22
Replies: 499
Views: 45,872
Posted By Bruce Abbott
A bold claim. Hope there are no shell bugs....

A bold claim. Hope there are no shell bugs. :nervous
Forum: Amiga scene 16 May 2020, 22:44
Replies: 499
Views: 45,872
Posted By Bruce Abbott
68020 is in no way a 'modern' CPU, and Amiga OS...

68020 is in no way a 'modern' CPU, and Amiga OS has always been 32 bit.

No they didn't. OS3.5 was a boondoggle - the Amiga equivalent of Windows ME. Which is why to forward we had to go 'back' to...
Forum: Amiga scene 11 May 2020, 14:05
Replies: 499
Views: 45,872
Posted By Bruce Abbott
A nightmare yes, but also why do it? It's more...

A nightmare yes, but also why do it? It's more important to optimize for the stock 7MHz 68000, less important on a faster CPU. And most compiler optimizations don't make that much difference anyway.
Forum: Amiga scene 10 May 2020, 00:08
Replies: 188
Views: 11,380
Posted By Bruce Abbott
Anything but the very latest PC web browser is...

Anything but the very latest PC web browser is bound to be a bit daft.

Today I switched to using Linux for web browsing because though the latest version of Firefox my XP machine can run is less...
Forum: Coders. Asm / Hardware 05 May 2020, 01:46
Replies: 16
Views: 966
Posted By Bruce Abbott
The CIAs are just used as simple GPIO. Once set...

The CIAs are just used as simple GPIO. Once set up, each pin is either an input or output which can be accessed with memory read/write and 'bit' instructions.

I took advantage of this in my floppy...
Forum: Amiga scene 05 May 2020, 01:19
Replies: 48
Views: 2,904
Posted By Bruce Abbott
Not just porting from other systems, but also to...

Not just porting from other systems, but also to them. Designing the game in 256 lines could mean having to redo all the graphics when porting to other systems, whereas if it was designed in 200...
Forum: Amiga scene 02 May 2020, 20:33
Replies: 188
Views: 11,380
Posted By Bruce Abbott
Old Amiga 68k apps were designed to run on old...

Old Amiga 68k apps were designed to run on old 68k Amigas, so they hardly need to run faster. Doesn't seem like a good reason to assert that "68k is dead, NG is the future!".
Forum: Amiga scene 30 April 2020, 04:08
Replies: 188
Views: 11,380
Posted By Bruce Abbott
Every person who insisted that 68k Amigas were...

Every person who insisted that 68k Amigas were 'end of road', under-powered and not worth their time. It's a common attitude on some other Amiga boards.

Nothing against that - I use my PC for some...
Forum: Amiga scene 28 April 2020, 22:41
Replies: 188
Views: 11,380
Posted By Bruce Abbott
People who were teenagers in the Amiga's heyday...

People who were teenagers in the Amiga's heyday are now middle-aged and getting the nostalgia bug, rediscovering those great games and reliving their youth. The prices of old Amigas have shot up due...
Forum: Amiga scene 28 April 2020, 06:11
Replies: 45
Views: 2,290
Posted By Bruce Abbott
Yes it is. That's just silly. You want a...

Yes it is.

That's just silly. You want a faster Amiga to run native software that needs it and just for general enjoyment anyway, and emulation is another good justification for having it. Why...
Forum: Amiga scene 28 April 2020, 05:41
Replies: 188
Views: 11,380
Posted By Bruce Abbott
I agree. There are hundreds of games for classic...

I agree. There are hundreds of games for classic Amiga that I never had 'back in the day' which are now free downloads. On OS4? Nothing. PPC development is boring too. I'm still learning how to...
Forum: Amiga scene 26 April 2020, 12:41
Replies: 34
Views: 2,175
Posted By Bruce Abbott
I've been waiting 26 years just to see what can...

I've been waiting 26 years just to see what can be done with a stock A1200, or even a 1MB A500. And I am still learning how to program for WB3.0.

I have the Vampire A600 and it's awesome, but I...
Forum: Coders. Asm / Hardware 21 April 2020, 02:54
Replies: 11
Views: 763
Posted By Bruce Abbott
Can you show us the offending code?

Can you show us the offending code?
Forum: Amiga scene 10 April 2020, 04:40
Replies: 499
Views: 45,872
Posted By Bruce Abbott
I'm confused. Are you saying every other OS...

I'm confused. Are you saying every other OS always shows the default icon instead of the one supplied in/with the file?

My PC's desktop currently has 98 unique icons on it, all individually...
Forum: Amiga scene 06 April 2020, 04:10
Replies: 1,178
Views: 81,987
Posted By Bruce Abbott
I think the real problem was the cost of more...

I think the real problem was the cost of more powerful CPUs (and associated harware) during that period. But this 'problem' turned out to be an asset for Amiga owners, because it meant they didn't...
Forum: Coders. Asm / Hardware 25 March 2020, 09:46
Replies: 26
Views: 1,728
Posted By Bruce Abbott
No, you suggested that the ROM code was not high...

No, you suggested that the ROM code was not high quality, which implies you think that you can do better.

I don't need to find anything, we know your code's not good because it doesn't work.
...
Forum: Amiga scene 25 March 2020, 09:25
Replies: 17
Views: 1,306
Posted By Bruce Abbott
The MFM hard drive on my A1000 got about 100kB/s...

The MFM hard drive on my A1000 got about 100kB/s write speed. At the time I thought it was pretty good (1:1 interleave, most PCs needed 3:1 or 5:1). Compared to that, over 1MB/s on my A1200 is...
Forum: Amiga scene 23 March 2020, 00:57
Replies: 45
Views: 2,290
Posted By Bruce Abbott
No, not if 'accurate' means at full speed. ...

No, not if 'accurate' means at full speed.

But who cares? This type of thing is what accelerator cards were made for. A 20MHz 68000 (eg. Wicher 500i) should be able to do it, and any 020 or 030...
Forum: Coders. Asm / Hardware 20 March 2020, 22:45
Replies: 26
Views: 1,728
Posted By Bruce Abbott
I doubt it has any weird tricks, and I bet the...

I doubt it has any weird tricks, and I bet the quality is better than yours. But hey, have fun figuring it out from scratch!

I do have one suggestion though - don't just try random stuff until...
Forum: Amiga scene 20 March 2020, 22:32
Replies: 1,178
Views: 81,987
Posted By Bruce Abbott
You say that like it was a bad thing. To us A1200...

You say that like it was a bad thing. To us A1200 owners the idea that new Amiga games might target the CD32 only was not a nice thought. OTOH, being able to use the A1200 to develop CD32 titles was...
Forum: Coders. Asm / Hardware 16 March 2020, 09:05
Replies: 17
Views: 1,080
Posted By Bruce Abbott
Why? And why are you converting 24 bit to HAM...

Why? And why are you converting 24 bit to HAM anyway?
Forum: Coders. Asm / Hardware 07 March 2020, 19:46
Replies: 10
Views: 677
Posted By Bruce Abbott
It's not safe for system-friendly code because it...

It's not safe for system-friendly code because it makes you vulnerable to other errant programs that write to address zero, or will crash your code if low memory is protected with Enforcer (and then...
Forum: Coders. Asm / Hardware 14 February 2020, 09:27
Replies: 6
Views: 1,225
Posted By Bruce Abbott
Unless it results in a dramatic speedup I...

Unless it results in a dramatic speedup I wouldn't bother. Better to concentrate on getting the size down to fit in the cache. Most 68040 systems had relatively slow 'fast' memory, so optimizing...
Forum: Retrogaming General Discussion 13 February 2020, 13:10
Replies: 57
Views: 3,183
Posted By Bruce Abbott
How long does it take to load a game from floppy...

How long does it take to load a game from floppy disk? My A500 takes 2 seconds.
Forum: Amiga scene 31 January 2020, 08:38
Replies: 1,178
Views: 81,987
Posted By Bruce Abbott
Using 2.5" laptop drives was an awesome idea -...

Using 2.5" laptop drives was an awesome idea - small enough to comfortably fit inside the awesome A1200 (or A600) case, simple installation with a single cable, and much lower power consumption so...
Forum: Coders. Asm / Hardware 26 January 2020, 20:02
Replies: 8
Views: 641
Posted By Bruce Abbott
I recommend Hisoft Devpac as it is more...

I recommend Hisoft Devpac as it is more 'professional', stable and complete than most of the compatible freeware stuff. Try to get the full package with manual if you can (I won't be selling mine!)...
Forum: Retrogaming General Discussion 26 January 2020, 19:29
Replies: 83
Views: 4,420
Posted By Bruce Abbott
Yes, this is essentially the reason it failed. It...

Yes, this is essentially the reason it failed. It was released in the same year that the Multimedia PC (https://en.wikipedia.org/wiki/Multimedia_PC) standard was introduced, which was also pretty...
Forum: Amiga scene 22 January 2020, 01:15
Replies: 1,178
Views: 81,987
Posted By Bruce Abbott
If the PC was so great for games then why did...

If the PC was so great for games then why did Microsoft produce the X-Box? Answer: 100 million PlayStations (https://en.wikipedia.org/wiki/PlayStation)

In 1997 I played my first - and last - PC...
Forum: Nostalgia & memories 16 January 2020, 21:33
Replies: 153
Views: 6,548
Posted By Bruce Abbott
Exactly. The A1200 was sold without any...

Exactly. The A1200 was sold without any expansions to keep the entry price down, but most of us intended to upgrade as finances permitted. It's one reason we bought an Amiga rather than a console.
...
Forum: Coders. Asm / Hardware 06 January 2020, 21:01
Replies: 33
Views: 1,319
Posted By Bruce Abbott
I agree. ProAsm...

I agree. ProAsm (http://aminet.net/package/dev/asm/proasm192) always puts the literal directly into the code, as it should.

I don't understand why they do that. One of the primary advantages of a...
Forum: Coders. Asm / Hardware 17 December 2019, 06:57
Replies: 16
Views: 780
Posted By Bruce Abbott
At US$1879 it had better be good!

At US$1879 it had better be good!
Forum: Coders. Asm / Hardware 14 December 2019, 03:58
Replies: 22
Views: 1,294
Posted By Bruce Abbott
Large blits can take significant time to execute,...

Large blits can take significant time to execute, and flickering may occur if the beam gets to where the blit is before it's finished.

What are the machine specs (cpu, chipset, OS etc.), color...
Forum: Coders. C/C++ 13 December 2019, 18:25
Replies: 16
Views: 1,702
Posted By Bruce Abbott
LoadView() takes effect at the next top of frame....

LoadView() takes effect at the next top of frame. If you do it immediately after WaitTOF() the old bitmap will still be displayed for the rest of that frame, so you should render to the 'new' bitmap...
Forum: Nostalgia & memories 07 December 2019, 10:50
Replies: 113
Views: 8,149
Posted By Bruce Abbott
Only 1MB of main RAM and 256k video RAM (not...

Only 1MB of main RAM and 256k video RAM (not enough for 640x480 in 256 colors). Standard VGA monitor (not super VGA) with a poor resolution CRT. Adlib sound card with basic synth music only - no...
Forum: Coders. C/C++ 07 December 2019, 07:51
Replies: 16
Views: 1,702
Posted By Bruce Abbott
I tried running your executable on my OS1.3 A500,...

I tried running your executable on my OS1.3 A500, but it crashed because the OS2.x function AllocVec() is called in bm_create(). I then tried compiling the source code but 'cop.o' is missing.

Can...
Forum: Coders. Asm / Hardware 27 November 2019, 19:18
Replies: 21
Views: 1,238
Posted By Bruce Abbott
Fair enough. If you have to preserve the original...

Fair enough. If you have to preserve the original format then you don't have much choice.

What code are you trying to port?
Forum: Coders. Asm / Hardware 26 November 2019, 05:48
Replies: 21
Views: 1,238
Posted By Bruce Abbott
Still less efficient than being word-aligned. And...

Still less efficient than being word-aligned. And a longword will be misaligned in 3 out of 4 cases.

Sounds like a fairly specific application. Why can't the alignment be set in advance?

I...
Forum: Coders. Asm / Hardware 25 November 2019, 03:28
Replies: 21
Views: 1,238
Posted By Bruce Abbott
Several reasons. 1. Not padding is less...

Several reasons.

1. Not padding is less efficient because it takes two memory cycles to access a word on a byte boundary.

2. You've got plenty of memory. Do you micromanage all your code to...
Forum: Hardware mods 14 November 2019, 10:05
Replies: 56
Views: 6,562
Posted By Bruce Abbott
Ordered.

Ordered.
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