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Forum: Hardware mods 22 January 2021, 23:59
Replies: 43
Views: 1,679
Posted By hooverphonique
Yeah, that's pretty cool - and no, I didn't mean...

Yeah, that's pretty cool - and no, I didn't mean you personally implementing it :D
Forum: Hardware mods 22 January 2021, 18:03
Replies: 43
Views: 1,679
Posted By hooverphonique
The Pico doesn't have HDMI, but I suppose you...

The Pico doesn't have HDMI, but I suppose you meant to implement that using the I/O state machines then?
Forum: Hardware mods 22 January 2021, 16:43
Replies: 16
Views: 1,159
Posted By hooverphonique
Slow-ram is mostly a question of it being blocked...

Slow-ram is mostly a question of it being blocked by mobo DMA, but I'm not sure how you would implement that on a cpu-socket extension.
Forum: Hardware mods 20 January 2021, 12:54
Replies: 5
Views: 383
Posted By hooverphonique
You need two things: - The motor signal for the...

You need two things:
- The motor signal for the drive needs to be latched using e.g. a d-flipflop, latching the mtr line using the appropriate sel line.
- When the amiga is clocking the sel line...
Forum: support.Hardware 20 January 2021, 12:31
Replies: 9
Views: 497
Posted By hooverphonique
That PAL/GAL could have been changed as part of...

That PAL/GAL could have been changed as part of an upgrade of Buster to rev 11, though, as there allegedly is a change required in it when upgrading buster from 9 to 11.
Forum: Coders. Asm / Hardware 13 January 2021, 17:52
Replies: 18
Views: 891
Posted By hooverphonique
Interesting - I did not know that! (I think...

Interesting - I did not know that! (I think :laughing)
Forum: Coders. C/C++ 11 January 2021, 12:57
Replies: 15
Views: 692
Posted By hooverphonique
I agree with Ernst that it sounds like you have a...

I agree with Ernst that it sounds like you have a bug/undefined behavior, which can manifest itself differently depending on different optimization options (i.e. messing with them is probably not...
Forum: Coders. Asm / Hardware 06 January 2021, 23:49
Replies: 6
Views: 676
Posted By hooverphonique
Of course - didn't notice one half was shifted a...

Of course - didn't notice one half was shifted a line :D
Forum: Retrogaming General Discussion 05 January 2021, 23:05
Replies: 7
Views: 622
Posted By hooverphonique
In general, the amiga doesn't do hardware scroll...

In general, the amiga doesn't do hardware scroll in arbitrary rectangles, but in rectangles covering the whole width of the playfield. If you (also) utilize the blitter (as mentioned above),...
Forum: Coders. Asm / Hardware 05 January 2021, 22:12
Replies: 6
Views: 676
Posted By hooverphonique
How does that work? I thought the modulo was only...

How does that work? I thought the modulo was only added at the end of each bitplane line fetch. Cheers!
Forum: Coders. Asm / Hardware 29 December 2020, 18:00
Replies: 30
Views: 2,386
Posted By hooverphonique
Nice HAM object :-) I think the...

Nice HAM object :-)


I think the resolution must be above a certain size (720p ?) to get 50Hz.
Forum: Hardware mods 23 December 2020, 15:58
Replies: 4
Views: 863
Posted By hooverphonique
This is not really possible as Agnus interacts...

This is not really possible as Agnus interacts with the rest of the system, and a piggyback would need to aswell, thus creating a conflict - the indivision just "listens" to the data being picked up...
Forum: Coders. C/C++ 20 December 2020, 15:25
Replies: 10
Views: 670
Posted By hooverphonique
It's also possible to use named arguments in...

It's also possible to use named arguments in place of %0, %1, etc:

"move.b mt_VUMeter,%[msk]\n"
: [msk] "=g" (mask)
Forum: Coders. Asm / Hardware 17 December 2020, 23:24
Replies: 30
Views: 1,794
Posted By hooverphonique
I suppose it's incorrect to say the carry is...

I suppose it's incorrect to say the carry is added - rather, if the carry is 1, replace the byte with (in your case) 0xFF :)
Forum: Coders. Asm / Hardware 15 December 2020, 23:35
Replies: 30
Views: 1,794
Posted By hooverphonique
I seem to remember that there's a thread on ADA...

I seem to remember that there's a thread on ADA with some useful info about this, but I couldn't find it again, unfortunately.
Forum: Retrogaming General Discussion 14 December 2020, 22:14
Replies: 392
Views: 37,300
Posted By hooverphonique
I don't know if meta balls would work, but...

I don't know if meta balls would work, but they're not the same as vector balls. Vector balls (ball-shaped bobs grouped together to form a shape) were widespread in amiga demos/intros in the late...
Forum: support.Hardware 14 December 2020, 11:44
Replies: 4
Views: 305
Posted By hooverphonique
Maybe it doesn't know, but it's a question of bus...

Maybe it doesn't know, but it's a question of bus loading/reflections/etc?
Forum: support.Hardware 11 December 2020, 19:30
Replies: 5
Views: 513
Posted By hooverphonique
Interference should be easy to rule out/verify by...

Interference should be easy to rule out/verify by moving the monitor away from the A1000 chassis.
Forum: Amiga scene 06 December 2020, 18:15
Replies: 14
Views: 1,350
Posted By hooverphonique
The blitter itself is fine for drawing lines and...

The blitter itself is fine for drawing lines and filling polygons.

It gets complicated when you have overlapping or concave objects, though, and when there's many of them, it may be easier to just...
Forum: Coders. Asm / Hardware 04 December 2020, 18:08
Replies: 7
Views: 1,028
Posted By hooverphonique
I suspect there's one in UAE...

I suspect there's one in UAE...
Forum: Retrogaming General Discussion 04 December 2020, 13:18
Replies: 43
Views: 3,521
Posted By hooverphonique
Well, the texture mapping in the pc version of...

Well, the texture mapping in the pc version of Frontier already looks crap and adds nothing to the game, so if it's anything like that, I'd prefer without.
Forum: Hardware mods 02 December 2020, 22:05
Replies: 15
Views: 1,987
Posted By hooverphonique
Plugin compatibility sounds neigh on impossible.....

Plugin compatibility sounds neigh on impossible.. An FPGA in a PLCC-84 package with internal boot rom/flash, 5V compatibility, power pins in the right places, etc..
Forum: support.Hardware 01 December 2020, 12:43
Replies: 13
Views: 758
Posted By hooverphonique
Did you use maprom in both cases?

Did you use maprom in both cases?
Forum: Coders. Asm / Hardware 25 November 2020, 11:54
Replies: 22
Views: 1,081
Posted By hooverphonique
Be careful that you don't end up with something...

Be careful that you don't end up with something where (on rare occasion) the cpu could enable blithog just when the copper disabled it (and just before the actual cpu interrupt is triggered), thus...
Forum: Nostalgia & memories 25 November 2020, 11:16
Replies: 33
Views: 2,180
Posted By hooverphonique
Mold? :-P

Mold? :-P
Forum: Coders. Asm / Hardware 24 November 2020, 11:23
Replies: 44
Views: 2,905
Posted By hooverphonique
That seed looks rather suspect - "bad ass a0" ?...

That seed looks rather suspect - "bad ass a0" ? :)
Forum: Coders. Asm / Hardware 21 November 2020, 13:00
Replies: 30
Views: 2,386
Posted By hooverphonique
I haven't thought about this in detail, but the...

I haven't thought about this in detail, but the glitches look much like the ones you get when using traditional blitter line+fill (although the artifacts go right to left), so maybe that will give...
Forum: Coders. C/C++ 20 November 2020, 12:28
Replies: 6
Views: 781
Posted By hooverphonique
Perform your hardware-banging *after* doing OS...

Perform your hardware-banging *after* doing OS stuff in startup, and the reverse when restoring ;)
Forum: Coders. System 19 November 2020, 16:10
Replies: 23
Views: 2,296
Posted By hooverphonique
Yes, conceptually you can interface almost...

Yes, conceptually you can interface almost anything using amiga OS devices and handlers, but figuring out how to write them is not an easy task, unfortunately.
Forum: Coders. Asm / Hardware 18 November 2020, 15:39
Replies: 5
Views: 454
Posted By hooverphonique
It is perfectly fine to use a 'plain' offset, but...

It is perfectly fine to use a 'plain' offset, but easier to read if you write 'move.l #-1,pr_WindowPtr(a4)' ;)


The first part of the process structure is the task part of the process, so when...
Forum: Coders. Asm / Hardware 18 November 2020, 11:13
Replies: 5
Views: 454
Posted By hooverphonique
IIRC, you can block dos dialogs by setting the...

IIRC, you can block dos dialogs by setting the window pointer of your process (pr_WindowPtr) to -1, but I'm not sure how that helps in getting a drive list.
Forum: Coders. Asm / Hardware 17 November 2020, 11:21
Replies: 44
Views: 2,905
Posted By hooverphonique
But don't you need an RND-generator in order to...

But don't you need an RND-generator in order to do that!? ;)
Forum: Retrogaming General Discussion 12 November 2020, 14:31
Replies: 183
Views: 12,357
Posted By hooverphonique
Given that there's multiple shades of every...

Given that there's multiple shades of every color, I think EHB makes good sense in this context.
Forum: support.Apps 10 November 2020, 11:13
Replies: 8
Views: 578
Posted By hooverphonique
Why is that? Is FFS V46 using different data...

Why is that? Is FFS V46 using different data structures on disk compared to older versions?
Forum: Coders. C/C++ 05 November 2020, 11:35
Replies: 8
Views: 871
Posted By hooverphonique
First, you're using x as a pixel position in the...

First, you're using x as a pixel position in the loop, but as an address in the arithmetic, which won't work.
second, you need to do something like (UBYTE*)shipData+x+y*WORDWIDTH_OF_IMAGE.
Third,...
Forum: Coders. C/C++ 02 November 2020, 11:31
Replies: 44
Views: 2,620
Posted By hooverphonique
Be aware that modulo 8 is only true when the...

Be aware that modulo 8 is only true when the destination is memory, otherwise it's 32 ;)


@OP

if you don't want a table for the mulu, you can do (for the y address offset):


; d0: y coord...
Forum: support.Hardware 30 October 2020, 12:07
Replies: 10
Views: 642
Posted By hooverphonique
The A314 mimics chipram, i.e. there is no actual...

The A314 mimics chipram, i.e. there is no actual chipram in the classic sense. This allows it to render stuff in ram which the amiga chipset then can access through DMA.
It's an interesting concept,...
Forum: Hardware mods 29 October 2020, 00:25
Replies: 46
Views: 11,202
Posted By hooverphonique
@sampedenawa I looked at your schematics to...

@sampedenawa

I looked at your schematics to learn how you detect CTRL-A-A (to switch kickstart).
Am I right in thinking you're assuming that if A0 is low for a certain amount of time, the Amiga...
Forum: support.Hardware 20 October 2020, 11:30
Replies: 6
Views: 558
Posted By hooverphonique
It's perfectly natural to have an instant READY...

It's perfectly natural to have an instant READY signal if the drive is spinning since it is already up to speed.

AmigaOS does not read the READY signal, but uses a timed delay (I can't remember...
Forum: Coders. Asm / Hardware 19 October 2020, 17:30
Replies: 22
Views: 1,376
Posted By hooverphonique
you could allocate sizeof(voltable)+512 and...

you could allocate sizeof(voltable)+512 and load/copy the data there starting at the aligned address.
Showing results 1 to 40 of 1187

 
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