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Forum: Amiga scene Yesterday, 10:22
Replies: 8
Views: 230
Posted By meynaf
Arexx system library is rexxsyslib.library, not...

Arexx system library is rexxsyslib.library, not rexxsys.library.
Forum: Coders. General 07 July 2020, 15:01
Replies: 20
Views: 578
Posted By meynaf
Hopefully global include paths don't take over,...

Hopefully global include paths don't take over, it could sometimes have been very annoying ;)



Well, there is still the incpath option from the command line to cover that case.

In most cases...
Forum: Retrogaming General Discussion 06 July 2020, 22:26
Replies: 92
Views: 2,808
Posted By meynaf
On the ST there is single screen pointer,...

On the ST there is single screen pointer, contrary to the Amiga where you have one pointer per bitplane -- so changing it is faster on the ST.
Forum: Retrogaming General Discussion 06 July 2020, 21:48
Replies: 92
Views: 2,808
Posted By meynaf
There are several custom chips on the ST. The...

There are several custom chips on the ST. The Shifter is no magic, it's simply the chip that handles the display, i.e. a dumb framebuffer.
What you've seen in that Spectrum 512 program isn't made by...
Forum: Retrogaming General Discussion 06 July 2020, 13:06
Replies: 92
Views: 2,808
Posted By meynaf
You know what to do then :p Sure. ...

You know what to do then :p



Sure.



I knew this, but sometimes i bite even if i'm not the target ;)
Forum: Retrogaming General Discussion 06 July 2020, 12:17
Replies: 92
Views: 2,808
Posted By meynaf
Imagine mixing two channels, each 8 bit data and...

Imagine mixing two channels, each 8 bit data and 6 bit volume, for a total 2*(8+6)=28 bits. Would do 15, perhaps 16 bits dynamic, maybe even more ?
But not really possible as while volume writes...
Forum: Coders. General 06 July 2020, 11:54
Replies: 20
Views: 578
Posted By meynaf
Actually the include file - which contains code...

Actually the include file - which contains code for the emulation of said sound chip so you don't need it for experiments - is located in a path every program can access (PhxAss INCPATH in config)....
Forum: Retrogaming General Discussion 06 July 2020, 11:14
Replies: 92
Views: 2,808
Posted By meynaf
Unpredictable, but measurable (and usable to...

Unpredictable, but measurable (and usable to alter the output).



This does not say how exactly the test has been made.



PWM is filtered out and completely missing anyway if you use max...
Forum: Retrogaming General Discussion 06 July 2020, 10:11
Replies: 92
Views: 2,808
Posted By meynaf
Of course but this gives more discrete output...

Of course but this gives more discrete output levels than with a purely linear system.



Beware of assumptions ;)



What is Paula's output regarding the dynamic range exactly ? How was it...
Forum: Retrogaming General Discussion 06 July 2020, 09:06
Replies: 92
Views: 2,808
Posted By meynaf
Argh! It doesn't work this way. :blased ...

Argh! It doesn't work this way. :blased

Amiga D/As are not linear so simple multiply does not tell anything.
This is why 14-bit replay needs to be calibrated. And i'd say that a well calibrated...
Forum: Coders. General 06 July 2020, 08:42
Replies: 20
Views: 578
Posted By meynaf
Usually in this case there is some "include"...

Usually in this case there is some "include" directory in the tree, and some kind of incdir somewhere as well.
In addition, it is usually a good practice to avoid having files with exact same name...
Forum: Coders. General 04 July 2020, 20:11
Replies: 20
Views: 578
Posted By meynaf
That means source dir does not contain all the...

That means source dir does not contain all the necessary files to assemble the code and there is no incdir of any sort to fetch includes. Looks weird to me.
On the other hand, if you have a...
Forum: Coders. General 04 July 2020, 17:22
Replies: 20
Views: 578
Posted By meynaf
What i meant with the order being unimportant, is...

What i meant with the order being unimportant, is that this decision in the asm isn't very sensitive. You will always find situations in which the order would have been better the other way...
...
Forum: Coders. General 04 July 2020, 16:12
Replies: 20
Views: 578
Posted By meynaf
I would like it to be fetched from both positions...

I would like it to be fetched from both positions : if first one is not found, try the other.
The order does not seem important.
Forum: Amiga scene 04 July 2020, 09:25
Replies: 130
Views: 20,990
Posted By meynaf
In dungeon dirs there is a script to play them...

In dungeon dirs there is a script to play them automatically. Run them exactly like the game.
You never read readme files do you ? ;)
Forum: Amiga scene 03 July 2020, 18:52
Replies: 130
Views: 20,990
Posted By meynaf
It says dungeon file can not be found. Several...

It says dungeon file can not be found. Several dungeons are available, you need to choose one.
Forum: Amiga scene 30 June 2020, 13:30
Replies: 130
Views: 20,990
Posted By meynaf
PM me with the details then. It's probably...

PM me with the details then. It's probably nothing to fix.
Forum: Coders. Asm / Hardware 30 June 2020, 10:35
Replies: 40
Views: 2,410
Posted By meynaf
Even with icache off, even if they don't execute...

Even with icache off, even if they don't execute simultaneously, if instruction 1 overwrites instruction 2 then instruction 2 will still execute unmodified, because the write occurs several clocks...
Forum: Coders. Asm / Hardware 29 June 2020, 20:09
Replies: 40
Views: 2,410
Posted By meynaf
Checking the address of the instruction itself...

Checking the address of the instruction itself means support for SMC and, again, the 68k's philosophy is against it (it's also the reason why PC-relative modes aren't for writing).
A sure thing is...
Forum: Coders. Asm / Hardware 27 June 2020, 15:49
Replies: 40
Views: 2,410
Posted By meynaf
Yes indeed :laughing 060 did a few "not really...

Yes indeed :laughing
060 did a few "not really smart" moves. Hopefully (AFAIK) this one doesn't have a significant impact.
Forum: Coders. Asm / Hardware 27 June 2020, 15:15
Replies: 40
Views: 2,410
Posted By meynaf
Ok, here it goes : - perform computation with...

Ok, here it goes :
- perform computation with scale factor (*2, *4 or *8), if *1 is used instead then <020
- push a7 with movem.l a7,-(a7), then pop to another register and compare with a7 - if...
Forum: Coders. Asm / Hardware 27 June 2020, 13:57
Replies: 40
Views: 2,410
Posted By meynaf
Missed : in french, would be SE. :p If...

Missed : in french, would be SE. :p



If you want, i also have a few tricks to detect 020+, even some that don't need trapping.
Forum: Coders. Asm / Hardware 27 June 2020, 13:50
Replies: 40
Views: 2,410
Posted By meynaf
You don't need to stretch your brain :...

You don't need to stretch your brain : superscalar or not, the instruction executed will be the one before the alteration.
The 68060 does not in any manner monitor code alterations, nor does any...
Forum: Coders. Asm / Hardware 27 June 2020, 12:47
Replies: 40
Views: 2,410
Posted By meynaf
You mean without OS ? Not sure it's what you...

You mean without OS ?

Not sure it's what you want, but here are a few tricks :
- set some 040+ bit in cacr - if it reads back as 0, then 020-030
- try to access caar register - if not illegal,...
Forum: Coders. Asm / Hardware 25 June 2020, 17:23
Replies: 34
Views: 2,183
Posted By meynaf
If you're patching code and it doesn't fit...

If you're patching code and it doesn't fit otherwise, then it's acceptable.
If you're coding in a ROM and space is extremely limited, then it's acceptable.
Otherwise, forbidden. Coder license...
Forum: Coders. Asm / Hardware 25 June 2020, 16:42
Replies: 34
Views: 2,183
Posted By meynaf
It's not really not understandable as the intent...

It's not really not understandable as the intent is clear, but indeed, very dirty :D
Reminds me of the cmpi.w trick used by sas/c.
Forum: Coders. Asm / Hardware 23 June 2020, 18:29
Replies: 34
Views: 2,183
Posted By meynaf
This wasn't listed in the conditions ;) But if...

This wasn't listed in the conditions ;)
But if you need PC relative code, then you're gonna have problems any time you write something.



6 if we count the reloc32 entry. I'm not after code...
Forum: Coders. Asm / Hardware 23 June 2020, 17:19
Replies: 34
Views: 2,183
Posted By meynaf
In an interrupt i would use simple tst.b addr. ...

In an interrupt i would use simple tst.b addr.
In the main code i would use a base reg, such as tst.b d(a5).
This has the advantage to work with the st / sf instructions themselves as well....
Forum: support.Games 22 June 2020, 11:20
Replies: 29
Views: 824
Posted By meynaf
What he has (or appears to have) is just some...

What he has (or appears to have) is just some kind of embedded emulator configured to run a specific game directly.
Forum: Nostalgia & memories 22 June 2020, 11:17
Replies: 12
Views: 982
Posted By meynaf
You don't need good ears. More often than not, PC...

You don't need good ears. More often than not, PC players fail miserably. :p

I can provide the reference with Delitracker2 and the file saving ability of some noteplayer. I can even provide mods...
Forum: support.Games 22 June 2020, 11:05
Replies: 29
Views: 824
Posted By meynaf
Read the thread : it looks like he doesn't even...

Read the thread : it looks like he doesn't even have a WB setup...
Forum: Coders. General 22 June 2020, 07:58
Replies: 19
Views: 1,225
Posted By meynaf
There is an advantage of using interleaved...

There is an advantage of using interleaved bitmaps in case you use the CPU to access the screen : you can do everything from a single pointer, which means less pressure on the registers.
Forum: support.Games 22 June 2020, 07:38
Replies: 29
Views: 824
Posted By meynaf
You don't run it from the mac, you run it from...

You don't run it from the mac, you run it from the emulated Amiga.
And you need a full Amiga setup for this : kickstart, workbench, etc.
Forum: support.Games 20 June 2020, 18:47
Replies: 29
Views: 824
Posted By meynaf
It is EOBII-AGA you have to run. It is main...

It is EOBII-AGA you have to run. It is main program. This is how to run "normal version", as mentioned before.
This can only be done from within the emulated machine, running normal Amiga OS.
Forum: support.Games 20 June 2020, 17:54
Replies: 29
Views: 824
Posted By meynaf
Looks like it's the whdload slave... Do you...

Looks like it's the whdload slave...

Do you have a file named "EOBII" (or something similar) in your eob2 folder ?
If yes, could you try to run it directly ?
Forum: support.Games 20 June 2020, 16:57
Replies: 29
Views: 824
Posted By meynaf
IIRC EOB1 does not save the game when you finish...

IIRC EOB1 does not save the game when you finish it.
However you don't need to reach the end to import the party into EOB2. So if you have a save game, this should work.
Forum: support.Games 20 June 2020, 15:01
Replies: 29
Views: 824
Posted By meynaf
Wanna have a simple step-by-step guide ? ...

Wanna have a simple step-by-step guide ?

Start new game in eob2.
Save the game.
Quit (with whdload version it's important).
Locate eobdata0.sav or similar named file.
In that same directory,...
Forum: Coders. Language 17 June 2020, 16:01
Replies: 15
Views: 1,164
Posted By meynaf
The more you write in ASM, the better you become...

The more you write in ASM, the better you become at doing it. But you also become better with other languages as well because with ASM experience you really know what you're doing.
Forum: Coders. Asm / Hardware 14 June 2020, 13:52
Replies: 6
Views: 565
Posted By meynaf
Using 8 bitplanes with fmode=0 is gonna eat all...

Using 8 bitplanes with fmode=0 is gonna eat all chipmem bandwidth. Probably not the right thing to do.
Forum: Coders. Asm / Hardware 14 June 2020, 11:10
Replies: 6
Views: 565
Posted By meynaf
Looks like race condition between copper and...

Looks like race condition between copper and display.
It is possible that BPL1MOD and BPL2MOD are somehow added after some high words of bitplane addresses have been set.

Anyway, it's clear the...
Showing results 1 to 40 of 3828

 
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