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Forum: Hardware mods Yesterday, 22:05
Replies: 4
Views: 305
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: 11
Views: 411
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: 701
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: 1,268
Posted By hooverphonique
Mold? :-P

Mold? :-P
Forum: Coders. Asm / Hardware 24 November 2020, 11:23
Replies: 44
Views: 2,319
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: 7
Views: 541
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: 449
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: 1,605
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: 275
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: 275
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: 2,319
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: 182
Views: 11,564
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: 482
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: 568
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: 1,799
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: 587
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: 10,093
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: 518
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: 1,280
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.
Forum: support.Hardware 14 October 2020, 11:39
Replies: 31
Views: 1,213
Posted By hooverphonique
I agree - if the gain of 2 is intented (for AC),...

I agree - if the gain of 2 is intented (for AC), this capacitor must be there for DC unity gain.


What I don't understand is the cap between the two 10k resistors - in my mind it will raise the...
Forum: Nostalgia & memories 05 October 2020, 15:31
Replies: 292
Views: 12,326
Posted By hooverphonique
True - I read 'relevant devices' as something...

True - I read 'relevant devices' as something part of the machine, i.e. not including peripherals ;)
Forum: Nostalgia & memories 05 October 2020, 15:10
Replies: 292
Views: 12,326
Posted By hooverphonique
Only the A3000(T) (and maybe A4000T?) had...

Only the A3000(T) (and maybe A4000T?) had harddrive DMA capability built in (SCSI), and it was quite expensive to add for many years after the Amiga was released.


I'd say that the Amiga...
Forum: Coders. Asm / Hardware 25 September 2020, 11:41
Replies: 32
Views: 2,352
Posted By hooverphonique
I'm pretty sure it does because it has no other...

I'm pretty sure it does because it has no other way of getting a clock for sampling the data correctly.
4489 *is* used for amiga format disks, too, yes, so Thomas has a point about "full code space"...
Forum: Coders. Asm / Hardware 24 September 2020, 11:06
Replies: 11
Views: 929
Posted By hooverphonique
I don't know, but potentially it could be...

I don't know, but potentially it could be altering INTEN (bit 14) master interrupt enable.
Forum: Coders. Asm / Hardware 23 September 2020, 16:59
Replies: 11
Views: 929
Posted By hooverphonique
Those registers cannot be read, in fact all of...

Those registers cannot be read, in fact all of the custom chip registers are either read or write, not both. Could that be the source of your problems (reading the wrong registers) ?
Forum: Amiga scene 23 September 2020, 16:55
Replies: 23
Views: 1,966
Posted By hooverphonique
What does that have to do with if the technical...

What does that have to do with if the technical drawings of a device are copyrighted or not?
Forum: Coders. Asm / Hardware 23 September 2020, 16:53
Replies: 3
Views: 575
Posted By hooverphonique
I could be wrong, but I think constants defined...

I could be wrong, but I think constants defined using xdef ends up in the data section, i.e. not as an instruction immediate value.
Forum: Coders. Asm / Hardware 23 September 2020, 16:51
Replies: 32
Views: 2,352
Posted By hooverphonique
Wouldn't your "cache" need the clock bits in...

Wouldn't your "cache" need the clock bits in order to extract the clock of the data stream when writing (and vice versa for Paula when reading) ?
Forum: support.Hardware 23 September 2020, 16:47
Replies: 4
Views: 306
Posted By hooverphonique
I have the TL866 as well, and used it for...

I have the TL866 as well, and used it for programming GALs without issues.
It only supports ICs up to 40 pins, so as aeberbach mentioned, it requires some tricks to program larger ones.

I'm...
Forum: support.Hardware 21 September 2020, 22:06
Replies: 12
Views: 410
Posted By hooverphonique
yes and no - the issue is with pcmcia...

yes and no - the issue is with pcmcia ram-expansions and >4MB in trapdoor simultaneously causing a hardware conflict. kick 3.1 tries to "fix" that by disabling pcmcia even if the card is not a...
Forum: support.Hardware 21 September 2020, 16:09
Replies: 12
Views: 410
Posted By hooverphonique
Maybe this is the common pcmcia conflict with 8MB...

Maybe this is the common pcmcia conflict with 8MB ram in 24-bit space... Do you have anything in the pcmcia slot?
Forum: Amiga scene 17 September 2020, 18:55
Replies: 23
Views: 1,966
Posted By hooverphonique
I agree with Daedalus that a schematic or a pcb...

I agree with Daedalus that a schematic or a pcb layout is as much a copyrightable drawing as any other drawing...
Forum: support.Hardware 16 September 2020, 16:47
Replies: 56
Views: 1,825
Posted By hooverphonique
The RTC (Oki, Ricoh, etc) is loaded into the CIA...

The RTC (Oki, Ricoh, etc) is loaded into the CIA chip TOD timer (time of day) on boot - the TOD doesn't progress correctly if certain interrupts are disabled or TOD registers are meddled with, which...
Forum: Coders. Asm / Hardware 16 September 2020, 15:08
Replies: 39
Views: 3,132
Posted By hooverphonique
It's the job of the cpu library to set this up,...

It's the job of the cpu library to set this up, not whdload, but depending on which library is used, maybe it isn't?
Forum: support.Hardware 15 September 2020, 12:18
Replies: 24
Views: 931
Posted By hooverphonique
I don't know your hw specifically, but it...

I don't know your hw specifically, but it strongly suggests that it moves the interrupt/exception vectors to fastmem, which is faster than having them in slowmem (where they are located by default).
Forum: support.Hardware 14 September 2020, 21:50
Replies: 24
Views: 931
Posted By hooverphonique
VBR2FAST should also give a speed increase..

VBR2FAST should also give a speed increase..
Forum: Coders. Asm / Hardware 09 September 2020, 11:29
Replies: 57
Views: 3,203
Posted By hooverphonique
andi is also two words ;)

andi is also two words ;)
Forum: support.Hardware 07 September 2020, 17:19
Replies: 42
Views: 2,578
Posted By hooverphonique
Does the mentioned module only search for those...

Does the mentioned module only search for those libraries specifically, or does it work with any library?
Edit: I suppose the module just makes those two specific libs resident, so it has nothing to...
Forum: Coders. Asm / Hardware 06 September 2020, 22:48
Replies: 9
Views: 814
Posted By hooverphonique
Your instruction is byte/word size, so EA is...

Your instruction is byte/word size, so EA is 8(2/0), so 12 cycles in total (for memory) - when reading a peripheral, wait states may come into play, as meynaf hinted at (how/if these are emulated, I...
Forum: MarketPlace 28 August 2020, 15:29
Replies: 1
Views: 569
Posted By hooverphonique
Hi John, Are you able to supply the 200 pin...

Hi John,

Are you able to supply the 200 pin local slot connector also?

best regards,
Jesper
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