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Forum: Amiga scene 17 September 2020, 17:55
Replies: 15
Views: 419
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, 15:47
Replies: 25
Views: 822
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, 14:08
Replies: 39
Views: 2,342
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, 11:18
Replies: 24
Views: 676
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, 20:50
Replies: 24
Views: 676
Posted By hooverphonique
VBR2FAST should also give a speed increase..

VBR2FAST should also give a speed increase..
Forum: Coders. Asm / Hardware 09 September 2020, 10:29
Replies: 57
Views: 2,247
Posted By hooverphonique
andi is also two words ;)

andi is also two words ;)
Forum: support.Hardware 07 September 2020, 16:19
Replies: 42
Views: 2,067
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, 21:48
Replies: 9
Views: 564
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, 14:29
Replies: 1
Views: 489
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
Forum: support.Hardware 28 August 2020, 13:49
Replies: 2
Views: 257
Posted By hooverphonique
Yes, I did notice the address lines give 1MB of...

Yes, I did notice the address lines give 1MB of rom address space, I was just thrown off by the schematic indicating the HN62402 being 256k*16.


I just noticed that I already commented on that...
Forum: support.Hardware 27 August 2020, 23:33
Replies: 2
Views: 257
Posted By hooverphonique
A4000 ROM size

I was looking at replacing the roms in my A4000 with a flash ram-based solution.
From what I remember from the 90's, the A4000 has/supports 512kB of kickstart rom (@$F80000), and the memory map...
Forum: Coders. Asm / Hardware 24 August 2020, 17:37
Replies: 18
Views: 1,161
Posted By hooverphonique
In order to keep memory allocated for both...

In order to keep memory allocated for both effects/screens during the transition?
Forum: Coders. General 18 August 2020, 13:09
Replies: 27
Views: 2,684
Posted By hooverphonique
To "hide" the top 16 bitmap lines, just set your...

To "hide" the top 16 bitmap lines, just set your bitplane pointers 16 lines into the bitmap (as you said).


If you want the screen to end 16 lines early, set DIWSTOP to $2c-16=$1c (vertical).
Forum: Coders. General 14 August 2020, 10:47
Replies: 27
Views: 1,608
Posted By hooverphonique
The final part of this is a coppper-chunky...

The final part of this is a coppper-chunky rotozoomer (shameless plug) : https://www.youtube.com/watch?v=wm5WLVAvBSM


Basically, all your classic copper plasma effects are a form of copper-chunky...
Forum: Coders. General 12 August 2020, 15:54
Replies: 11
Views: 593
Posted By hooverphonique
your shifting exercise does nothing but clear the...

your shifting exercise does nothing but clear the lower 4 bits ;-)

edit: well, it also sets some status flags which you aren't using anyway, so...
Forum: Amiga scene 11 August 2020, 10:21
Replies: 533
Views: 78,827
Posted By hooverphonique
Maybe this is for you :-) airing on HBO August...

Maybe this is for you :-) airing on HBO August 16, 2020.

https://en.wikipedia.org/wiki/Lovecraft_Country_(TV_series)
Forum: support.Hardware 10 August 2020, 21:18
Replies: 8
Views: 1,486
Posted By hooverphonique
Sorry for OT, but what is "Matze's TK060"? Google...

Sorry for OT, but what is "Matze's TK060"? Google doesn't come up with anything useful for me..
Forum: support.Hardware 10 August 2020, 10:21
Replies: 24
Views: 728
Posted By hooverphonique
Move the heads to track 0 (outer) and use the...

Move the heads to track 0 (outer) and use the multimeter to measure voltage on the track 0 signal, then power the amiga on. If you for every step (at the boot screen) get alternating 0V/5V, then the...
Forum: support.Hardware 07 August 2020, 17:14
Replies: 24
Views: 728
Posted By hooverphonique
https://old.pinouts.ru/HD/InternalDisk_pinout.shtm...

https://old.pinouts.ru/HD/InternalDisk_pinout.shtml
Amigas use the Shugart pinout. PC's use a twist in the cable for pin 10-16 which selects drive A or B (A after the twist).

If you can't use a...
Forum: Coders. Asm / Hardware 06 August 2020, 18:34
Replies: 80
Views: 5,325
Posted By hooverphonique
It doesn't make sense if the actual number of...

It doesn't make sense if the actual number of blits per frame makes a difference - sounds more like some timing thing that you accidentally hit after 15 blits (similar to the display dma thing you...
Forum: support.Hardware 05 August 2020, 16:38
Replies: 19
Views: 926
Posted By hooverphonique
An 8MB simm is 8MB, no matter if double sided or...

An 8MB simm is 8MB, no matter if double sided or not - if it fits physically, you can choose either.


If the card doesn't support double-rank simms (2MB,8MB,32MB,etc), then using a 32MB instead...
Forum: News 03 August 2020, 14:30
Replies: 117
Views: 7,056
Posted By hooverphonique
Does it use an FFS root block at a (hardcoded)...

Does it use an FFS root block at a (hardcoded) different block than 880? And then the OS will just load the OFS root from block 880 to access those few files?
Forum: support.Hardware 02 August 2020, 15:08
Replies: 8
Views: 418
Posted By hooverphonique
There wouldn't be much point in an 030 without...

There wouldn't be much point in an 030 without local fast ram - your external 8MB would slow it down..
Forum: support.Hardware 30 July 2020, 11:17
Replies: 15
Views: 781
Posted By hooverphonique
This ^^^

This ^^^
Forum: Coders. System 28 July 2020, 21:37
Replies: 19
Views: 1,227
Posted By hooverphonique
But those are not the symbols you used in the...

But those are not the symbols you used in the code you showed ;)


If your copper list can grow to 10500 bytes, you need to round up: (10500+7)&fff8

Considering you didn't mention any memory...
Forum: Coders. General 27 July 2020, 11:19
Replies: 4
Views: 618
Posted By hooverphonique
moveq supports 8-bit immediate source operand...

moveq supports 8-bit immediate source operand (-128 to 127) which is then sign-extended to long. Specifying an immediate that doesn't fit in 8 bits is kind of misleading, IMHO (but of course ok as...
Forum: support.Hardware 16 July 2020, 16:42
Replies: 11
Views: 422
Posted By hooverphonique
It should be close to 5V at all times when you're...

It should be close to 5V at all times when you're not explicitly resetting the machine.. Check if resistor R120 (470 ohms) is ok - if it is, I suspect something is wrong with your keyboard.
Forum: support.Hardware 16 July 2020, 11:19
Replies: 13
Views: 1,193
Posted By hooverphonique
If price is reasonable, I might be interested in...

If price is reasonable, I might be interested in a A3660 board.
Forum: support.Hardware 14 July 2020, 11:10
Replies: 11
Views: 422
Posted By hooverphonique
I had totally forgotten that the A4000 doesn't...

I had totally forgotten that the A4000 doesn't have a direct reset signal from the keyboard like e.g. the A500 has. The A4000 keyboard reset is derived by Gary from the keyboard clock signal (_KBCLK)...
Forum: support.Hardware 13 July 2020, 15:05
Replies: 11
Views: 422
Posted By hooverphonique
Maybe the keyboard keeps the reset signal...

Maybe the keyboard keeps the reset signal continuously pulled low.
Forum: support.Hardware 13 July 2020, 15:04
Replies: 9
Views: 382
Posted By hooverphonique
The 2MB Agnus has an additional DRAM address...

The 2MB Agnus has an additional DRAM address signal, so you would need to wire that separately to address more than 1MB chipram.



The short answer is no - if you want to know the details, you...
Forum: support.Hardware 13 July 2020, 10:16
Replies: 9
Views: 382
Posted By hooverphonique
Gary is the same, you need a different agnus, but...

Gary is the same, you need a different agnus, but it is not pin compatible with the rev 6 board, that's why you need a MegiChip or similar.
Forum: support.Hardware 13 July 2020, 10:13
Replies: 10
Views: 404
Posted By hooverphonique
solder just one end of the resistor in, and put...

solder just one end of the resistor in, and put an ammeter in series to check current - if current is zero when mouse not plugged in, your board should be fine.

could there be a mechanical issue...
Forum: support.Hardware 01 July 2020, 18:45
Replies: 7
Views: 244
Posted By hooverphonique
To me that just looks like a pcb footprint that...

To me that just looks like a pcb footprint that accommodates both sizes (DIP8 or DIP14), and they are interchangeable. If you have a multimeter, you can use the continuity test to check whether I'm...
Forum: support.Hardware 01 July 2020, 13:58
Replies: 7
Views: 244
Posted By hooverphonique
Generally, those types of oscillators have 4...

Generally, those types of oscillators have 4 terminals in either a DIP8 or DIP14 form factor, and can be interchanged if you account for the form factor.

Are you sure the ACA actually has a 6...
Forum: Amiga scene 30 June 2020, 17:30
Replies: 45
Views: 2,498
Posted By hooverphonique
It loads kickstart from disk ;-)

It loads kickstart from disk ;-)
Forum: support.Hardware 29 June 2020, 10:09
Replies: 3
Views: 207
Posted By hooverphonique
:lol

:lol
Forum: support.Hardware 23 June 2020, 13:20
Replies: 1
Views: 212
Posted By hooverphonique
Remember that the oscillator input ground is...

Remember that the oscillator input ground is connected to mains earth, which can easily cause shorts if you're not careful!
Forum: support.Hardware 08 June 2020, 10:27
Replies: 13
Views: 498
Posted By hooverphonique
If both drives seem to have the exact same...

If both drives seem to have the exact same (faulty) behavior, chances are one of the pull-up resistors on the motherboard for the control signals is bad (unless it's just a case of an intermittent...
Forum: Coders. General 03 June 2020, 10:37
Replies: 4
Views: 623
Posted By hooverphonique
Yes.. It looks like the value in D0 (when...

Yes.. It looks like the value in D0 (when entering "record") is used as a busy-wait loop count.
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