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Forum: Coders. Asm / Hardware Today, 12:01
Replies: 12
Views: 383
Posted By meynaf
Here is precisely the problem : it is ambiguous...

Here is precisely the problem : it is ambiguous and one can't answer for sure to these questions without testing every cpu model.

IIRC, on 020-030 it would be non-incremented new stack pointer...
Forum: Amiga scene Today, 09:16
Replies: 99
Views: 5,245
Posted By meynaf
Right, try to behave like me, just for the fun....

Right, try to behave like me, just for the fun. Then - if you're successful in doing so, which i doubt - maybe you will discover what discussing really means.
But for now, it would be better if...
Forum: Coders. Asm / Hardware Yesterday, 19:14
Replies: 12
Views: 383
Posted By meynaf
UNLK A7 does not look very useful... In theory...

UNLK A7 does not look very useful...
In theory it should just pop A7 out of the stack, something regular MOVE can do.
Also it does not look safe to use accross different cpu models, like MOVE.L...
Forum: Retrogaming General Discussion Yesterday, 16:50
Replies: 49
Views: 2,293
Posted By meynaf
Technically there is nothing preventing building...

Technically there is nothing preventing building 68060 @1Ghz and more.
If using latest tech it maybe could even reach that speed nearly unmodified...
But the world isn't driven by technical...
Forum: Coders. General Yesterday, 16:02
Replies: 83
Views: 1,425
Posted By meynaf
When compiler, linker, optimizer, or whatever,...

When compiler, linker, optimizer, or whatever, detects that there will be a crash, the smallest of things should be to emit a warning about it...
Forum: Retrogaming General Discussion Yesterday, 10:34
Replies: 49
Views: 2,293
Posted By meynaf
How can 486 be chosen as successor to 68040 as...

How can 486 be chosen as successor to 68040 as they are comparable in speed (with even a slight advantage to 68040) ?
x86 by that time were a regression compared to 68k and it would still have been...
Forum: Retrogaming General Discussion Yesterday, 09:36
Replies: 49
Views: 2,293
Posted By meynaf
So you want what ? That A500 owners throwed their...

So you want what ? That A500 owners throwed their A500 in the bin for a machine that costs a lot more and isn't even more powerful ? Or that they bought an accelerator board that does not make their...
Forum: Coders. General Yesterday, 09:12
Replies: 83
Views: 1,425
Posted By meynaf
No it doesn't sound plausible. Crashing with a...

No it doesn't sound plausible. Crashing with a guru indicating trap #7 means the vector wasn't touched at all and still points to normal rom. In addition, the code doesn't look like if it was trying...
Forum: Retrogaming General Discussion Yesterday, 09:04
Replies: 49
Views: 2,293
Posted By meynaf
Most do not have a 68000 anymore either. Many...

Most do not have a 68000 anymore either.
Many have A1200 and this is 68020, whose emulation would have required JIT which did not exist in 1994.
Forum: Retrogaming General Discussion Yesterday, 08:53
Replies: 49
Views: 2,293
Posted By meynaf
Old 68000 maybe (i'm not sure). But in 1994 the...

Old 68000 maybe (i'm not sure). But in 1994 the speed to achieve was that of 68040.
Forum: Coders. General 11 November 2019, 22:47
Replies: 83
Views: 1,425
Posted By meynaf
It's located in first code section.

It's located in first code section.
Forum: Coders. General 11 November 2019, 21:40
Replies: 83
Views: 1,425
Posted By meynaf
In theory yes. In practice optimisation can...

In theory yes. In practice optimisation can sometimes fail bad. Does it still crash if you turn it off ?
Forum: Coders. General 11 November 2019, 21:27
Replies: 83
Views: 1,425
Posted By meynaf
I confirm there is no overwrite of code. Also it...

I confirm there is no overwrite of code. Also it does not look like data at all.

Comparing with keyboard.c the generated asm code is hard to follow and even sometimes looks incorrect.
Seems the...
Forum: Coders. General 11 November 2019, 18:29
Replies: 83
Views: 1,425
Posted By meynaf
The guru you get indicates TRAP #7 instructions...

The guru you get indicates TRAP #7 instructions executing.
But it may also indicate that the code branches to data (which is likely text in this case). You may want to check your indirect JMP/JSR.
Forum: support.Other 11 November 2019, 16:20
Replies: 15
Views: 488
Posted By meynaf
If you use the emulator's debugger rather than an...

If you use the emulator's debugger rather than an amiga one (i don't), then the situation becomes different.

But anyway that depends how much the game is "unfriendly" and how far you push...
Forum: support.Other 11 November 2019, 15:23
Replies: 15
Views: 488
Posted By meynaf
Yes. System friendly means it runs...

Yes.



System friendly means it runs without destroying the OS, and actually uses it. In the ideal case, a game that can even multitask, which means you can use any amiga tool while the game is...
Forum: Amiga scene 08 November 2019, 16:30
Replies: 99
Views: 5,245
Posted By meynaf
Also look at who's still #15 :cheese

Also look at who's still #15 :cheese
Forum: Retrogaming General Discussion 08 November 2019, 11:30
Replies: 49
Views: 2,293
Posted By meynaf
Transistor count and cpu speed are two different...

Transistor count and cpu speed are two different things.
Forum: Retrogaming General Discussion 08 November 2019, 11:22
Replies: 49
Views: 2,293
Posted By meynaf
Does it provide anything that will make...

Does it provide anything that will make programming easier ?
(Same reason ppc didn't qualify as 68k replacement, as its asm is actually much worse.)

Can it be made reliable enough so it can...
Forum: Retrogaming General Discussion 07 November 2019, 10:22
Replies: 9
Views: 376
Posted By meynaf
Only game i know of that has resizable view...

Only game i know of that has resizable view window is Colonization, and there are tight limits.
Forum: support.Other 07 November 2019, 10:20
Replies: 15
Views: 488
Posted By meynaf
IMO the easiest way could be to re-source some...

IMO the easiest way could be to re-source some system friendly game.
Then inserting/deleting code becomes a lot easier (and perhaps debugging as well).
Forum: Retrogaming General Discussion 06 November 2019, 19:07
Replies: 19
Views: 438
Posted By meynaf
Same here. In addition, most TVs had SCART input...

Same here. In addition, most TVs had SCART input so for the Amiga itself it didn't really matter anyway.
Forum: Retrogaming General Discussion 06 November 2019, 13:17
Replies: 49
Views: 2,293
Posted By meynaf
I don't see anything good coming in the...

I don't see anything good coming in the foreseeable future.



It has been boring for me since 1994.
Forum: Retrogaming General Discussion 06 November 2019, 09:44
Replies: 49
Views: 2,293
Posted By meynaf
Yes, a 68k processor faster than today cpu could...

Yes, a 68k processor faster than today cpu could be done, and it would be faster for the simple reason it has better instruction set. So everything else being equal (strong out-of-order...
Forum: Amiga scene 05 November 2019, 20:20
Replies: 99
Views: 5,245
Posted By meynaf
Then perhaps it's the same thing for programming...

Then perhaps it's the same thing for programming languages :p



Isn't it supposed to be general purpose, instead ?



Yeah, like choosing to use a tank to go shopping :cheese
Forum: Amiga scene 05 November 2019, 19:55
Replies: 99
Views: 5,245
Posted By meynaf
Nobody will say the sledge-hammer or the scalpel...

Nobody will say the sledge-hammer or the scalpel suck or is a pile of shit. They're just tools targeted at a specific task. There is no choice here.
Forum: Amiga scene 05 November 2019, 18:12
Replies: 99
Views: 5,245
Posted By meynaf
Yes and this is my point : for many things it's...

Yes and this is my point : for many things it's not suited.
I don't like languages that are ill-suited for half the things i need to do.



Code re-use is also quite language independent, while...
Forum: Amiga scene 05 November 2019, 16:07
Replies: 99
Views: 5,245
Posted By meynaf
Question answered long ago and now we're OT....

Question answered long ago and now we're OT. Perhaps this should just stop right here.



I especially like the "no matter how wrong it is". :rolleyes



Wait a minute. Isn't this called...
Forum: Amiga scene 05 November 2019, 14:20
Replies: 99
Views: 5,245
Posted By meynaf
Read back to the first page. I didn't write...

Read back to the first page. I didn't write anything aggressive and you charged me of trolling. Facts speak against you.
Forum: Amiga scene 05 November 2019, 10:35
Replies: 99
Views: 5,245
Posted By meynaf
I doubt they use not standard runtimes, and if...

I doubt they use not standard runtimes, and if they do, there is still the host OS to be discussed.
And even if they did have AOS support here, they still don't have 68020+ category.
Are you afraid...
Forum: Amiga scene 04 November 2019, 22:20
Replies: 99
Views: 5,245
Posted By meynaf
It doesn't include my fave language (i code 020+,...

It doesn't include my fave language (i code 020+, not bare 68000).
And it probably does not allow using own libraries.
So no, it hasn't been done before.



Probably not difficult :D
Forum: Amiga scene 04 November 2019, 21:35
Replies: 99
Views: 5,245
Posted By meynaf
I would rather see things the other way around....

I would rather see things the other way around. ARexx is basically a remote command for other programs - something probably not doable directly with python.
Forum: Amiga scene 04 November 2019, 21:21
Replies: 99
Views: 5,245
Posted By meynaf
Should I have a major concern ? This...

Should I have a major concern ?



This is theory.
But in practice nothing can really be considered as expressive, easy to read, helpful nor intuitive...
It's not without reason code is named...
Forum: Coders. Asm / Hardware 04 November 2019, 20:48
Replies: 29
Views: 995
Posted By meynaf
As the 68060 has a "true" push buffer, normally...

As the 68060 has a "true" push buffer, normally it should be able to access memory between writes, without blocking.
However, if said memory isn't in cache then it may experience wait states if...
Forum: Amiga scene 04 November 2019, 20:28
Replies: 99
Views: 5,245
Posted By meynaf
Is my main argument that Python would be terribly...

Is my main argument that Python would be terribly slow ? No. Don't confuse me with someone else. This is only one point.



And reusable components can be made to ease coding in asm, making it...
Forum: Coders. Asm / Hardware 04 November 2019, 20:03
Replies: 29
Views: 995
Posted By meynaf
The 030 does not need to read full cache lines,...

The 030 does not need to read full cache lines, longwords inside a cache line are independent (i.e. separately seen as valid or not).


Data burst often makes no difference.
In many cases it can...
Forum: Coders. Asm / Hardware 04 November 2019, 18:18
Replies: 29
Views: 995
Posted By meynaf
No. The read causes a read burst only if data...

No. The read causes a read burst only if data burst is active - an on my A1230 it usually wasn't.
Forum: Amiga scene 04 November 2019, 18:15
Replies: 99
Views: 5,245
Posted By meynaf
My experience with Python is none of your...

My experience with Python is none of your business, but anyway, do I need heavy experience in it to know an interpreted language is slow ?
Do someone need to have done anything but read the docs to...
Forum: Coders. Asm / Hardware 04 November 2019, 18:01
Replies: 29
Views: 995
Posted By meynaf
If this were true, then we would be able to pad...

If this were true, then we would be able to pad reads from fast between writes to chip and still not miss any access.
But my experience with 030 shows that it doesn't work this way. I could pad up...
Forum: Amiga scene 04 November 2019, 15:26
Replies: 99
Views: 5,245
Posted By meynaf
It can be ridiculous and still be true. :D ...

It can be ridiculous and still be true. :D



They can be smart and still not be programmers, hence doing stupid things. F.e. I've seen code from NIST (who're not supposed to be a bunch of...
Showing results 1 to 40 of 3559

 
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