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Search: Posts Made By: hooverphonique
Forum: support.Hardware 17 May 2018, 11:17
Replies: 11
Views: 263
Posted By hooverphonique
yes!

yes!
Forum: support.WinUAE 17 May 2018, 11:11
Replies: 12
Views: 507
Posted By hooverphonique
That's what I always thought..

That's what I always thought..
Forum: Hardware mods 17 May 2018, 11:09
Replies: 12
Views: 324
Posted By hooverphonique
Well, I forget to say 'verify less rpm' on new...

Well, I forget to say 'verify less rpm' on new fan ;)
Forum: Hardware mods 16 May 2018, 09:47
Replies: 12
Views: 324
Posted By hooverphonique
If you can find the specs for the original, maybe...

If you can find the specs for the original, maybe replace it with one with smaller power consumption, but same airflow - that solution would create less noise.
Forum: Coders. Asm / Hardware 01 May 2018, 10:21
Replies: 17
Views: 616
Posted By hooverphonique
But if the blitter operation in question has idle...

But if the blitter operation in question has idle cycles, the cpu could possibly read or write the word, the blitter is currently operating on, right!?
Forum: Coders. System 30 April 2018, 10:58
Replies: 15
Views: 1,144
Posted By hooverphonique
I do know about BSTRs (they are used by Microsoft...

I do know about BSTRs (they are used by Microsoft COM), but I didn't know they were related to BCPL - I probably should've guessed though :D
Forum: Coders. System 28 April 2018, 23:40
Replies: 15
Views: 1,144
Posted By hooverphonique
BCPL, not BSTR! The legacy OS (Tripos) AmigaDOS...

BCPL, not BSTR! The legacy OS (Tripos) AmigaDOS is based on, uses BCPL pointers, which means everything must align with 4.

Not sure if you were kidding, though :)
Forum: Hardware mods 26 April 2018, 13:09
Replies: 40
Views: 2,074
Posted By hooverphonique
That looks very suspicious considering the speed...

That looks very suspicious considering the speed of the clockport itself is a few 100 kbytes/sec.
Forum: support.Hardware 24 April 2018, 13:13
Replies: 43
Views: 1,319
Posted By hooverphonique
Code in the Kickstart will write a pattern and...

Code in the Kickstart will write a pattern and read it back to determine if there's memory or not.
Forum: Coders. Asm / Hardware 24 April 2018, 10:19
Replies: 21
Views: 1,504
Posted By hooverphonique
If you mean the "roller coaster" effect in the...

If you mean the "roller coaster" effect in the beginning, it might as well be done with the copper and 102-scaling..
Forum: support.Hardware 19 April 2018, 10:17
Replies: 5
Views: 503
Posted By hooverphonique
Does A500+/CDTV use the same eeprom pin layout as...

Does A500+/CDTV use the same eeprom pin layout as the A600?
Forum: Coders. General 18 April 2018, 13:11
Replies: 21
Views: 1,129
Posted By hooverphonique
This?...

This? https://scalibq.wordpress.com/2011/12/28/just-keeping-it-real-part-5/
Forum: Coders. System 16 April 2018, 10:16
Replies: 15
Views: 1,144
Posted By hooverphonique
Does Execute require Run to be in C:, or just...

Does Execute require Run to be in C:, or just somewhere in the path?
Forum: Coders. Asm / Hardware 06 April 2018, 21:50
Replies: 39
Views: 1,525
Posted By hooverphonique
so the master supervisor mode is only used when...

so the master supervisor mode is only used when the M-bit is set, and we know that LVOSupervisor() doesn't use master supervisor mode?
Forum: Coders. Asm / Hardware 06 April 2018, 10:44
Replies: 39
Views: 1,525
Posted By hooverphonique
And you're right in doing so, because the stack...

And you're right in doing so, because the stack frames ARE different between processors. Note that you need to do move.l d0, USP when changing the user mode sp from supervisor mode. Also note that...
Forum: Hardware mods 04 April 2018, 17:35
Replies: 12
Views: 862
Posted By hooverphonique
He does, it's all mapped linearly down from...

He does, it's all mapped linearly down from 07FFFFFF, so the question is if it will mess with the Romy since 01000000 - 013FFFFF is now handled by Ramsey whether you are using 112MB or not... The...
Forum: Amiga scene 04 April 2018, 11:35
Replies: 43
Views: 2,412
Posted By hooverphonique
As far as I've understood it, the native display...

As far as I've understood it, the native display has empty bars top and bottom (so the code renders less than 256 lines), and then it's zoomed by the video hardware used at the party.
Forum: support.Hardware 30 March 2018, 14:36
Replies: 11
Views: 398
Posted By hooverphonique
This old hardware is using dram which is not...

This old hardware is using dram which is not clocked/synchronous, so there isn't necessarily any connection between cpu clock and ram speed.
Forum: Coders. Asm / Hardware 27 March 2018, 00:21
Replies: 21
Views: 1,093
Posted By hooverphonique
For instance mpeg audio stream decoders make...

For instance mpeg audio stream decoders make heavy use of this sort of thing, but they are most often written in C I think.

I would say an implementation would depend a lot on, where you want the...
Forum: Hardware mods 13 March 2018, 10:41
Replies: 3,247
Views: 254,746
Posted By hooverphonique
Well, I suppose that's what I meant when saying...

Well, I suppose that's what I meant when saying that the SPI data register would be 32bits in case of ks rom ;)

I now realize that it isn't a register, of course, because the data needs to be...
Forum: Coders. Asm / Hardware 13 March 2018, 10:30
Replies: 39
Views: 1,525
Posted By hooverphonique
And also make sure, you're not overwriting your...

And also make sure, you're not overwriting your own running code which may or may not be at some arbitrary address chosen by the os, depending on how you bootstrap ;)
Forum: Hardware mods 12 March 2018, 21:09
Replies: 3,247
Views: 254,746
Posted By hooverphonique
I thought the cpu needed to "see" its full bus...

I thought the cpu needed to "see" its full bus size when executing the ks rom code from the spi flash..
Forum: support.Hardware 12 March 2018, 21:00
Replies: 12
Views: 508
Posted By hooverphonique
I'm not sure screw extractors in that small a...

I'm not sure screw extractors in that small a size are commonly available..
Forum: support.Hardware 12 March 2018, 14:44
Replies: 12
Views: 508
Posted By hooverphonique
Nice find, I was under the impression myself that...

Nice find, I was under the impression myself that the outer hall-sensor was involved in speed control. I tried to remove the spindle screw on my Chinon FB-357A, but it too wouldn't budge (it sheared...
Forum: Coders. Asm / Hardware 12 March 2018, 14:20
Replies: 8
Views: 599
Posted By hooverphonique
The checkerboard challenge is over already ;)

The checkerboard challenge is over already ;)
Forum: Hardware mods 01 March 2018, 10:17
Replies: 3,247
Views: 254,746
Posted By hooverphonique
I suppose this means the SPI data register is 32...

I suppose this means the SPI data register is 32 bit?
Forum: Coders. Asm / Hardware 27 February 2018, 13:09
Replies: 163
Views: 11,216
Posted By hooverphonique
Then you probably don't need e.g. floppy dma at...

Then you probably don't need e.g. floppy dma at all as you probably won't need floppy support on the target platform.

By the way, did you try taking a look at the kickstart rom for the Macrosystem...
Forum: Coders. Asm / Hardware 26 February 2018, 10:38
Replies: 163
Views: 11,216
Posted By hooverphonique
You are probably already aware of this, but the...

You are probably already aware of this, but the above smells like you have some memory corruption issue that manifests itself differently when having slow fast compared to chip ram only..


...
Forum: Hardware mods 26 February 2018, 09:51
Replies: 140
Views: 8,730
Posted By hooverphonique
I don't see that in the store - do I need to...

I don't see that in the store - do I need to contact him directly?
Forum: Coders. Asm / Hardware 22 February 2018, 16:48
Replies: 6
Views: 423
Posted By hooverphonique
if using frame-skip, one would need to calc how...

if using frame-skip, one would need to calc how many frames to skip after each actual move, otherwise only moves of whole fractions of 50 pixels per second are possible.
Forum: Hardware mods 19 February 2018, 15:57
Replies: 238
Views: 15,053
Posted By hooverphonique
Well, let's hope they are within the typical...

Well, let's hope they are within the typical delay spec then, because otherwise you'll be in trouble :)
Forum: Hardware mods 19 February 2018, 13:07
Replies: 238
Views: 15,053
Posted By hooverphonique
Do we know anything about the inter-flipflop...

Do we know anything about the inter-flipflop propagation delay variation on this? The 1803 is specified to be within 2ns, but as far as I can see, nothing is spec'd for 175.. I don't know how much of...
Forum: Coders. Asm / Hardware 18 February 2018, 20:51
Replies: 163
Views: 11,216
Posted By hooverphonique
Very interesting to follow, this thread is :) ...

Very interesting to follow, this thread is :)



yes, those old kickstart versions (1.2, 1.3) do use the blitter for mfm decoding..
Forum: Coders. Asm / Hardware 18 February 2018, 20:30
Replies: 9
Views: 654
Posted By hooverphonique
With (e.g.) bresenham, you can just keep...

With (e.g.) bresenham, you can just keep iterating, and the ufo will keep the same trajectory even when passing where Jack was.
Forum: Coders. Asm / Hardware 16 February 2018, 11:30
Replies: 163
Views: 11,216
Posted By hooverphonique
Additional drives are detected by the OS by...

Additional drives are detected by the OS by clocking the SEL line 32 times and looking at the pulse train coming out of the RDY line (this is one of the reasons you need extra hw to connect an...
Forum: Amiga scene 13 February 2018, 10:44
Replies: 6
Views: 655
Posted By hooverphonique
Look on the distributors page ;)

Look on the distributors page ;)
Forum: Coders. Asm / Hardware 12 February 2018, 11:08
Replies: 163
Views: 11,216
Posted By hooverphonique
No, it can't..

No, it can't..
Forum: support.Hardware 12 February 2018, 11:03
Replies: 7
Views: 331
Posted By hooverphonique
If you just use SEL2 on the amiga floppy port and...

If you just use SEL2 on the amiga floppy port and connect this to SEL0 of the first external drive, it will become DF2, but I think the amiga will skip looking for DF2 if DF1 isn't present, so you...
Forum: Coders. Asm / Hardware 07 February 2018, 14:52
Replies: 28
Views: 1,795
Posted By hooverphonique
Yes, that is probably a reasonable compromise..

Yes, that is probably a reasonable compromise..
Forum: Coders. Asm / Hardware 07 February 2018, 13:09
Replies: 28
Views: 1,795
Posted By hooverphonique
The whole point of using LoadView(NULL) is to...

The whole point of using LoadView(NULL) is to avoid having to explicitly set all sorts of gfx-related registers (which depend on chipset version) to reset the display ;)
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