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Search: Posts Made By: ross
Forum: support.WinUAE Yesterday, 18:31
Replies: 151
Views: 23,664
Posted By ross
Works :) I've incorrectly used v-2 or v-3...

Works :)
I've incorrectly used v-2 or v-3 (without spaces), that worked in the old version.

Thanks.
Forum: support.WinUAE 10 December 2019, 23:00
Replies: 151
Views: 23,664
Posted By ross
Hi Toni, does this have something to do with the...

Hi Toni, does this have something to do with the Visual DMA debugger?
Because to me it still doesn't work even in beta 8.
Forum: Coders. Asm / Hardware 09 December 2019, 14:04
Replies: 18
Views: 523
Posted By ross
:cheese Thinks that a 512byte lut already...

:cheese
Thinks that a 512byte lut already seemed big to me...
It would be interesting to calculate how many cycles it takes to fill the lut ;)
Forum: Coders. Asm / Hardware 09 December 2019, 12:22
Replies: 18
Views: 523
Posted By ross
Be satisfied with that, without considering the...

Be satisfied with that, without considering the initial setup in d0 and lut calc these are 68 cycles, I would say not bad at all ;)
Forum: Coders. Asm / Hardware 09 December 2019, 12:11
Replies: 18
Views: 523
Posted By ross
:cool Damn, that's why last night I dreamed...

:cool

Damn, that's why last night I dreamed of a lsr #7, but this morning I forgot it! :p
Forum: Coders. Asm / Hardware 09 December 2019, 10:48
Replies: 18
Views: 523
Posted By ross
:great Another little gain (-2): ...

:great

Another little gain (-2):
move.w #%1010110011010101,d0

moveq #0,d1
move.w d0,-(sp)
move.b (sp)+,d1
add.w d1,d1
move.l lut(pc,d1.l),d2
Forum: Coders. Asm / Hardware 09 December 2019, 02:14
Replies: 18
Views: 523
Posted By ross
LUT version: 82 cycles :D lea lut(pc),a0...

LUT version: 82 cycles :D

lea lut(pc),a0
moveq #0,d0
.md move.w d0,d4
moveq #7,d3
move.w d4,d1
.ml add.b d4,d4
addx.w d2,d2
add.b d1,d1
Forum: Coders. Asm / Hardware 09 December 2019, 01:38
Replies: 18
Views: 523
Posted By ross
A simple trick to make it much faster on bare...

A simple trick to make it much faster on bare 68k:

move.w #%1010110011010101,d0
move.w d0,d1
add.w d0,d0
addx.w d2,d2
add.w d1,d1
addx.w d2,d2
add.w ...
Forum: Coders. Asm / Hardware 09 December 2019, 00:50
Replies: 18
Views: 523
Posted By ross
This is faster and the number of processor cycles...

This is faster and the number of processor cycles used are a constant:
move.w #%1010110011010101,d0
move.w d0,d1
add.w d0,d0
addx.l d2,d2
add.w d1,d1
addx.l ...
Forum: support.WinUAE 08 December 2019, 22:13
Replies: 151
Views: 23,664
Posted By ross
Visual DMA debugger no longer works.

Visual DMA debugger no longer works.
Forum: Retrogaming General Discussion 06 December 2019, 17:05
Replies: 27
Views: 429
Posted By ross
Invasion, Italian pirate release of Taito's Space...

Invasion, Italian pirate release of Taito's Space Invaders, 1979, at my grandfather's Bar.
Forum: support.WinUAE 05 December 2019, 22:09
Replies: 151
Views: 23,664
Posted By ross
Yep :). Thanks. I did some tests and...

Yep :). Thanks.


I did some tests and everything seems to be going well.
If I find something wrong, I'll let you know.
Forum: support.WinUAE 05 December 2019, 02:16
Replies: 151
Views: 23,664
Posted By ross
Hi Toni, with winuae.7z some missing pixels on...

Hi Toni, with winuae.7z some missing pixels on the right edge with max overscan.
Only with SuperHires / Subpixel display emulation.
Forum: support.WinUAE 02 December 2019, 20:57
Replies: 151
Views: 23,664
Posted By ross
:great

:great
Forum: support.WinUAE 02 December 2019, 18:09
Replies: 151
Views: 23,664
Posted By ross
WinUAE 4.3 betas, Quickstart A500/+/A600,...

WinUAE 4.3 betas, Quickstart A500/+/A600, Processor 68010, KS1.x -> loop reset, KS2.0+ -> HALT2/HALT3.

No problem in the previous versions for 010.
Forum: Coders. Asm / Hardware 02 December 2019, 00:27
Replies: 6
Views: 312
Posted By ross
Hi leonard, a little help to calculate these...

Hi leonard, a little help to calculate these value.

Stardard OCS/ECS fetch values for the default positioned PAL screen in low-res are DDFSTRT=$38, DDFSTOP=$D0 (DIWSTRT=$2c81, DIWSTOP=$2cc1).
In...
Forum: support.WinUAE 30 November 2019, 22:01
Replies: 145
Views: 7,850
Posted By ross
Thanks, it works properly now :)

Thanks, it works properly now :)
Forum: Coders. Asm / Hardware 27 November 2019, 17:33
Replies: 7
Views: 482
Posted By ross
Throws a coin :) Both methods are good and...

Throws a coin :)
Both methods are good and right.

The canonical method would be to modify the SPRxCTL EV bits to right value in memory sprites structure during VB.


EDIT: Having to choose, I...
Forum: Coders. General 27 November 2019, 16:50
Replies: 106
Views: 2,698
Posted By ross
https://franke.ms/cex/ EDIT: but it fail to...

https://franke.ms/cex/

EDIT: but it fail to compile many snippet in gcc 8 e 9 :|
Forum: Coders. General 27 November 2019, 16:10
Replies: 106
Views: 2,698
Posted By ross
No, you've to suffer :)

No, you've to suffer :)
Forum: Coders. General 27 November 2019, 14:37
Replies: 106
Views: 2,698
Posted By ross
This :agree

This :agree
Forum: Coders. General 27 November 2019, 14:33
Replies: 106
Views: 2,698
Posted By ross
https://github.com/BartmanAbyss/vscode-amiga-debug

https://github.com/BartmanAbyss/vscode-amiga-debug
Forum: support.WinUAE 27 November 2019, 14:00
Replies: 145
Views: 7,850
Posted By ross
Hi Toni, just noticed this glitch on WB with...

Hi Toni, just noticed this glitch on WB with winuae.7z 20/11.

Max usable overscan system settings: DDFSTRT=$18, DDFSTOP=$d8, FMODE=3 and Subpixel emulation active.

No problem on official PB5 or...
Forum: support.Apps 27 November 2019, 13:36
Replies: 3
Views: 154
Posted By ross
I've my configuration file here: ...

I've my configuration file here:
C:\Users\myname\AppData\Local\VirtualStore\Program Files\xmplay\xmplay.ini
Forum: Coders. General 27 November 2019, 13:17
Replies: 106
Views: 2,698
Posted By ross
This is a rather particular case, due to the fact...

This is a rather particular case, due to the fact that the compiler generates perfect code in the main loop.
But yes, latest GCC is very good on 68k (I only saw the generated code, my laziness...
Forum: Coders. General 26 November 2019, 18:37
Replies: 106
Views: 2,698
Posted By ross
Found this paper: "Rule-Based Optimization of...

Found this paper: "Rule-Based Optimization of AND-XOR Expressions".
Abstract: The problem of finding a minimum AND-XOR expression for a given boolean function is known to be very hard. In this paper...
Forum: Coders. General 26 November 2019, 18:10
Replies: 106
Views: 2,698
Posted By ross
Yes, I also saw these 6 cycles in some documents....

Yes, I also saw these 6 cycles in some documents.
They simply misinterpret <ea>,An not adding 2 cycles for register direct (to base time of six clock cycles).
Forum: Coders. Asm / Hardware 26 November 2019, 16:50
Replies: 7
Views: 411
Posted By ross
Yep, this is the reason why I supposed the...

Yep, this is the reason why I supposed the original coder intention was to write to $bfed01 (disabling all CIA-A IRQs and re-enabling only keyboard one).
The "wrong" writing could disable the CIA-B...
Forum: Coders. General 26 November 2019, 15:58
Replies: 106
Views: 2,698
Posted By ross
Same (12) cycles on bare 68k as lea (a2,d2.x),a4 ...

Same (12) cycles on bare 68k as lea (a2,d2.x),a4
I also always prefer lea in similar cases (you also have a free 8bits offset ;)).



Well, waiting some c2p expert because this equivalence was...
Forum: Coders. General 26 November 2019, 12:46
Replies: 106
Views: 2,698
Posted By ross
But I would like to understand what are the steps...

But I would like to understand what are the steps to go from:
y=(a&c)|(b&~a);
to:
y=b^(a&(b^c));

Yes, surely with some boolean algebra optimization you can get here, but how in a human...
Forum: support.Games 26 November 2019, 11:18
Replies: 7
Views: 981
Posted By ross
Hi, attached the patched ADF.

Hi, attached the patched ADF.
Forum: Coders. Asm / Hardware 26 November 2019, 10:48
Replies: 7
Views: 411
Posted By ross
Wrong access to $BFED01?

Wrong access to $BFED01?
Forum: Coders. General 25 November 2019, 23:52
Replies: 106
Views: 2,698
Posted By ross
:agree .L101: move.l (a0),d2 move.l...

:agree

.L101:
move.l (a0),d2
move.l d3,d0
eor.l d2,d0
and.l (a1)+,d0
eor.l d2,d0
move.l d0,(a0)+
dbra d1,.L101
Forum: Coders. General 24 November 2019, 18:07
Replies: 106
Views: 2,698
Posted By ross
Ah this, yes, you are right :) So TCH had...

Ah this, yes, you are right :)

So TCH had been lucky with A6 in its version (and explain crash with A5).
Forum: Coders. General 24 November 2019, 17:37
Replies: 106
Views: 2,698
Posted By ross
Yes, it would be interesting to see the version...

Yes, it would be interesting to see the version generated by the compiler.

Regarding the stack, only the move.b instructions are lined up to word.
Forum: Coders. General 24 November 2019, 12:12
Replies: 106
Views: 2,698
Posted By ross
EDIT: uh, sorry, I missed your EDIT2, so probably...

EDIT: uh, sorry, I missed your EDIT2, so probably not a bad preserving in IRQ

Weird that a/b code is slower than C...
Forum: Coders. General 24 November 2019, 11:48
Replies: 106
Views: 2,698
Posted By ross
The content of A5 is modified by something...

The content of A5 is modified by something external: an IRQ routine with bad registers preserving.
Forum: OT - Entertainment 24 November 2019, 00:01
Replies: 32
Views: 910
Posted By ross
Goblin - Tenebre (1982) ...

Goblin - Tenebre (1982)

https://www.youtube.com/watch?v=mck53Yn7u-A

The distorted voice say "paura" (Italian for "fear").
Daft Punk's parents :)
Forum: support.WinUAE 23 November 2019, 21:29
Replies: 41
Views: 1,711
Posted By ross
I tried the ADF and I couldn't replicate the...

I tried the ADF and I couldn't replicate the problem, but only with the savestate (and very seldom).
So this too is a timing issue like that of the ball "shadow".
(I didn't check what part of the...
Forum: support.WinUAE 23 November 2019, 17:30
Replies: 41
Views: 1,711
Posted By ross
Certainly. The game code must be patched :)

Certainly. The game code must be patched :)
Showing results 1 to 40 of 2267

 
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