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Forum: Nostalgia & memories Yesterday, 15:15
Replies: 158
Views: 17,763
Posted By meynaf
It could. I haven't looked.

It could. I haven't looked.
Forum: Nostalgia & memories Yesterday, 13:36
Replies: 158
Views: 17,763
Posted By meynaf
That's very possible. Just find someone who is...

That's very possible. Just find someone who is able and has the time and will to do it (that's the hard part).
Forum: Retrogaming General Discussion 27 October 2021, 11:34
Replies: 3
Views: 315
Posted By meynaf
Unless i understood it wrongly, they are not...

Unless i understood it wrongly, they are not restoring password codes - they are restoring something else that got damaged by a bad crack.

It is quite frequent in scumm games that a crack has the...
Forum: Coders. Asm / Hardware 22 October 2021, 08:53
Replies: 10
Views: 454
Posted By meynaf
The best method depends on your goals. You...

The best method depends on your goals.

You want it to be "clean", and not necessarily the fastest ?
Better not to mix data and code then, and thus you have to care about the extremely limited...
Forum: Nostalgia & memories 20 October 2021, 11:09
Replies: 10
Views: 780
Posted By meynaf
The more cpu power you have, the more you can...

The more cpu power you have, the more you can push the chipset.
Memory doesn't count that much, you just need a decent amount of fastmem.
Forum: Coders. General 04 October 2021, 11:38
Replies: 49
Views: 3,521
Posted By meynaf
You're not alone in that case. I might add that...

You're not alone in that case.
I might add that when doing code refactoring, source splitting just goes in the way.



I use phxlnk when a linker is necessary. It never failed on me.


...
Forum: Coders. General 01 October 2021, 10:16
Replies: 49
Views: 3,521
Posted By meynaf
I don't know. There is no exact standard with...

I don't know. There is no exact standard with debug hunks, it seems Devpac has its own.
Forum: Coders. General 01 October 2021, 09:44
Replies: 49
Views: 3,521
Posted By meynaf
I suppose that when the assembler sees...

I suppose that when the assembler sees ln_Pred(a0) in the source, it writes offset 4 in the code with info in some table inside the debug hunk indicating that this particular "4" is actually...
Forum: Retrogaming General Discussion 27 September 2021, 08:27
Replies: 24
Views: 1,449
Posted By meynaf
In French it's just gé-u-i [Ze-y-i]...

In French it's just gé-u-i [Ze-y-i] (https://en.wikipedia.org/wiki/SAMPA). Never heard anything else. Wouldn't try to spell it in english.
Forum: Coders. Asm / Hardware 23 September 2021, 14:36
Replies: 61
Views: 5,760
Posted By meynaf
Record to break is 28280 (WinRK).

Record to break is 28280 (WinRK).
Forum: Coders. Asm / Hardware 23 September 2021, 13:21
Replies: 61
Views: 5,760
Posted By meynaf
I can't confirm decompression speed (too fast...

I can't confirm decompression speed (too fast :D).
But content confirmed. Same zombie.shp than mine (as taken from zombie apocalypse 2 game).

To be able to beat the size i had to go to PPM range...
Forum: Coders. Asm / Hardware 23 September 2021, 08:30
Replies: 61
Views: 5,760
Posted By meynaf
Wait. If we have same zombies.shp file, this even...

Wait. If we have same zombies.shp file, this even beats arithmetic coding (xpk shri) and burrows-wheeler (bz2) !
Care to share your code ?
Forum: Coders. Asm / Hardware 18 September 2021, 14:27
Replies: 14
Views: 869
Posted By meynaf
Yes, you can have a window and still use your...

Yes, you can have a window and still use your WaitTOF pair. Just poll intuition events (without waiting) before or after each of them.



The current shell will stall, unless you launch your...
Forum: Coders. Asm / Hardware 18 September 2021, 12:36
Replies: 14
Views: 869
Posted By meynaf
Any program run from a WB pseudo icon will spawn...

Any program run from a WB pseudo icon will spawn an "output window". This window will not close until the user presses the close button and AFAIK you have no control on this.
But it won't physically...
Forum: Coders. Asm / Hardware 16 September 2021, 08:00
Replies: 61
Views: 5,760
Posted By meynaf
Personnally i would reconsider using own encoded...

Personnally i would reconsider using own encoded soundchip output rather than original music code and data. For example COSO/TFMX songs are quite small and you could reuse player code where...
Forum: support.Apps 09 September 2021, 20:44
Replies: 14
Views: 1,356
Posted By meynaf
You don't need to do that. Winuae settings are...

You don't need to do that. Winuae settings are enough.
Forum: support.Apps 09 September 2021, 13:07
Replies: 14
Views: 1,356
Posted By meynaf
Benchmarks on emulators aren't very reliable so...

Benchmarks on emulators aren't very reliable so it's not meaningful. Especially Sysinfo, giving quite delirious values with JIT.
You can also alter some settings to reach completely bogus values (i...
Forum: Coders. Asm / Hardware 09 September 2021, 07:17
Replies: 16
Views: 1,245
Posted By meynaf
There are several reasons why instruction streams...

There are several reasons why instruction streams can go haywire, not only RTS.
If the crash always happens then i'd just trace the code with a debugger, executing subroutine calls directly instead...
Forum: New to Emulation or Amiga scene 08 September 2021, 13:52
Replies: 5
Views: 1,121
Posted By meynaf
For ports there is a place : ...

For ports there is a place :
http://eab.abime.net/showthread.php?t=85200
Forum: Coders. System 08 September 2021, 09:19
Replies: 13
Views: 1,143
Posted By meynaf
Be awared that if you do that, you may end up...

Be awared that if you do that, you may end up with false positives due to data or instruction operands mismatched with branch instructions.



That's Pandora's box to open. All addresses inside...
Forum: project.Amiga Game Factory 06 September 2021, 09:03
Replies: 261
Views: 93,575
Posted By meynaf
First ensure you have AGA active. Else screen...

First ensure you have AGA active. Else screen won't open.
Then your error message indicates something wrong with SMK replay. Check you have all relevant files. See readme in the game archive (mine)....
Forum: support.WinUAE 21 August 2021, 12:56
Replies: 11
Views: 941
Posted By meynaf
Alternative way could be to create a different...

Alternative way could be to create a different shortcut that will be seen in Amiga side as being Alt-Tab.
Forum: Amiga scene 20 August 2021, 18:24
Replies: 172
Views: 16,813
Posted By meynaf
It's not that simple. FPU code can run 50 times...

It's not that simple. FPU code can run 50 times faster (maybe more ?) than software float, but AMMX is far away from reaching that level of acceleration.
Forum: Amiga scene 19 August 2021, 12:58
Replies: 172
Views: 16,813
Posted By meynaf
As Promilus said -- it's just how marketing is...

As Promilus said -- it's just how marketing is done.
They badly want their AMMX/64-bit to be used massively, they're proud of these things, but in reality they don't count.
I wouldn't be surprised...
Forum: Amiga scene 19 August 2021, 10:05
Replies: 172
Views: 16,813
Posted By meynaf
Not really. The commercial success comes from the...

Not really. The commercial success comes from the fact it faster runs existing apps. The new features have nothing to do with that.



Toni Wilen said it himself : whole thing is developer...
Forum: support.Games 19 August 2021, 09:31
Replies: 31
Views: 3,224
Posted By meynaf
There is also the possibility to copy files by...

There is also the possibility to copy files by hand. Put them all in single dir except for fonts for which you have to keep "fonts" dir and run EOBII program.
Forum: Coders. Asm / Hardware 18 August 2021, 11:25
Replies: 21
Views: 2,352
Posted By meynaf
My impression is that an interrupt comes for...

My impression is that an interrupt comes for whatever reason and there is nothing to handle it -> crash.
If running in supervisor mode (i suppose it does, it's embedded thingy), then move.w...
Forum: Coders. Asm / Hardware 16 August 2021, 08:10
Replies: 21
Views: 2,352
Posted By meynaf
Try this : _start: lea 0x12345678, %a2...

Try this :

_start:
lea 0x12345678, %a2 | address; placeholder value, replaced
movl #0x12345678, %d7 | length; placeholder value, replaced
movb #0x88, %d1 | value; placeholder...
Forum: Retrogaming General Discussion 16 August 2021, 08:01
Replies: 296
Views: 44,353
Posted By meynaf
They are as easy to change as on the WB, just...

They are as easy to change as on the WB, just boot with something that does it. Actually even easier, as running a program touching hardware color registers is enough.
All the floppies i made to be...
Forum: Retrogaming General Discussion 14 August 2021, 21:50
Replies: 296
Views: 44,353
Posted By meynaf
The green desktop isn't necessarily green, the...

The green desktop isn't necessarily green, the color can be changed.
The keyboard sound can also be disabled.
Forum: Coders. Asm / Hardware 14 August 2021, 15:06
Replies: 21
Views: 2,352
Posted By meynaf
Is the code allowed to destroy itself ? Because...

Is the code allowed to destroy itself ?
Because then we can do :

insn:
lea insn(pc),a2
loop:
moveq #3,d7
wait:
move.w RX.w,d1
btst #13,d1 ; check for data being ready
Forum: Coders. Asm / Hardware 14 August 2021, 14:34
Replies: 21
Views: 2,352
Posted By meynaf
If write to 0 isn't acceptable, then it's still...

If write to 0 isn't acceptable, then it's still doable this way :

insn:
move.w #$31fc,insn.w ; neutral - overwritten with value and 16-bit target address
moveq #3,d7
lea insn+2(pc),a2
wait:...
Forum: Coders. Asm / Hardware 14 August 2021, 13:31
Replies: 21
Views: 2,352
Posted By meynaf
What is the effect of a write to address zero ?...

What is the effect of a write to address zero ? If it's no-op, then you can perform the write in all cases and do the loop afterwards, sparing a branch.
Forum: News 07 August 2021, 16:33
Replies: 29
Views: 4,660
Posted By meynaf
Six months work isn't nothing. How to know how...

Six months work isn't nothing. How to know how much the prize pool currently is ?
Forum: Coders. Asm / Hardware 05 August 2021, 14:00
Replies: 18
Views: 1,499
Posted By meynaf
If you want to see all effects at once : ...

If you want to see all effects at once :

move.l #$55558888,a0
move.l #$11111111,a1
adda.w a0,a1 ; a1=$11109999
Forum: News 03 August 2021, 21:36
Replies: 29
Views: 4,660
Posted By meynaf
This is tempting. Is it possible to enter the...

This is tempting. Is it possible to enter the competition with several ports (in the same category) ?
I might do one or two more ST game ports ;)
Forum: Coders. Asm / Hardware 03 August 2021, 16:27
Replies: 18
Views: 1,499
Posted By meynaf
Try this then : move.l #$00007fff,a0 ...

Try this then :

move.l #$00007fff,a0
move.l #$0000ffff,a1
add.w a0,a1 ; a1=00017ffe
Forum: Coders. Asm / Hardware 03 August 2021, 10:05
Replies: 18
Views: 1,499
Posted By meynaf
No flags affected by MOVEA, ADDA, SUBA. Only CMPA...

No flags affected by MOVEA, ADDA, SUBA. Only CMPA does.



Are you sure Motorola documented that ? MOVEA and ADDA sure also do a sign-extend.




If you like odd things : even though...
Forum: Coders. Asm / Hardware 02 August 2021, 07:50
Replies: 18
Views: 1,499
Posted By meynaf
There is also the trick to use CMPA.W on same reg...

There is also the trick to use CMPA.W on same reg to check if a signed value fits in 16-bit (i.e. is between $ffff8000 and $00007fff).
Forum: Coders. Asm / Hardware 28 July 2021, 08:41
Replies: 15
Views: 2,192
Posted By meynaf
For reference, shift and add version : ...

For reference, shift and add version :

move.w d0,d1
add.w d0,d0
add.w d0,d1
lsl.w #2,d0
lsl.w #6,d1
add.w d1,d0
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