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Forum: Hardware mods 23 July 2021, 09:46
Replies: 27
Views: 2,192
Posted By AmigaHope
Akiko is a busted design anyway because it...

Akiko is a busted design anyway because it requires the CPU to write to its registers, then read back the planar data, then write that back to the bitmap in chip memory.

If you wanted to do some...
Forum: New to Emulation or Amiga scene 23 July 2021, 09:18
Replies: 8
Views: 452
Posted By AmigaHope
The nice thing was that the 2.x+ font system...

The nice thing was that the 2.x+ font system (bullet.library) allowed for multiple font engines, so even though it only supported old Amiga bitmap fonts and Compugraphic fonts, it was possible to add...
Forum: Amiga scene 23 July 2021, 09:10
Replies: 16
Views: 872
Posted By AmigaHope
You only need one kickstart (3.2), but you need...

You only need one kickstart (3.2), but you need at least one mounted disk with the icon and workbench libraries on them. This can be any mounted disk, even a floppy. If you want to boot from a...
Forum: Retrogaming General Discussion 14 July 2021, 12:25
Replies: 166
Views: 7,577
Posted By AmigaHope
The next revolution is in AI, and dedicated AI...

The next revolution is in AI, and dedicated AI compute hardware. We're already seeing huge gains in functionality. In any situation where a "good enough" answer will suffice, i.e. what regular humans...
Forum: support.Hardware 12 July 2021, 07:50
Replies: 30
Views: 3,306
Posted By AmigaHope
Horizontal scan rate, to be precise. The DMA...

Horizontal scan rate, to be precise. The DMA slots are tied to the scheduling for a line of video data. Paula gets X bits per line. You get different potential rates depending on what horizontal...
Forum: Amiga scene 08 July 2021, 04:40
Replies: 542
Views: 47,872
Posted By AmigaHope
Imagine if you could only eat food from only one...

Imagine if you could only eat food from only one grocery store. You had to pick your grocery store and could then only eat food from there forever. Then the one fancy grocery store screws up in their...
Forum: Amiga scene 06 July 2021, 10:20
Replies: 542
Views: 47,872
Posted By AmigaHope
See, the problem is you're looking at the Amiga...

See, the problem is you're looking at the Amiga as a console, not as a computer. A stripped down Amiga console (the original idea) could have come to market in 1985 instead and would have done very...
Forum: Amiga scene 02 July 2021, 13:00
Replies: 542
Views: 47,872
Posted By AmigaHope
The thing is that high end workstations were a...

The thing is that high end workstations were a product of their time -- when consumer operating systems were lacking. AmigaOS stood alone as the only good OS that came bundled in a consumer device....
Forum: Hardware mods 29 June 2021, 22:54
Replies: 49
Views: 15,509
Posted By AmigaHope
That's a lot of RAM for a 24-bit A500!...

That's a lot of RAM for a 24-bit A500! Impressive. I assume the smaller blocks are given highest priority in the memory list so they get allocated first (to reduce fragmenting the big blocks)?
Forum: Hardware mods 29 June 2021, 22:46
Replies: 58
Views: 6,397
Posted By AmigaHope
Right, but why so many more transistors? What I...

Right, but why so many more transistors? What I was saying is that maybe they didn't just add features to the Denise design and do a die shrink. I'm speculating they just did a clean-sheet...
Forum: Hardware mods 28 June 2021, 04:18
Replies: 58
Views: 6,397
Posted By AmigaHope
To be fair, Denise was laid out by hand and was...

To be fair, Denise was laid out by hand and was ridiculously optimized. The ECS Denise changes were super tiny modifications, but the extra Lisa features were probably stuff they couldn't fit easily...
Forum: Amiga scene 28 June 2021, 03:41
Replies: 3
Views: 327
Posted By AmigaHope
What format is the FMV in? Would probably be...

What format is the FMV in? Would probably be better to patch the game to call a CDXL playback routine on the Amiga instead of trying to make some weird hook into UAE
Forum: Amiga scene 28 June 2021, 03:25
Replies: 542
Views: 47,872
Posted By AmigaHope
Short of some magical tech from the year 2000...

Short of some magical tech from the year 2000 dropping in Commodore's lap (and kept secret), there was no way to stop IBM from the way things stood in 1985.

Remember, the Amiga was already several...
Forum: Amiga scene 27 June 2021, 11:35
Replies: 542
Views: 47,872
Posted By AmigaHope
Even in 1985 to be honest the Amiga was mostly...

Even in 1985 to be honest the Amiga was mostly doomed, and the Mac to a lesser extent. The business niche was almost entirely controlled by IBM at that point because they started from what had been a...
Forum: Hardware mods 27 June 2021, 09:59
Replies: 58
Views: 6,397
Posted By AmigaHope
Gary could be probably done incredibly cheaply...

Gary could be probably done incredibly cheaply with a GAL board like has been done for the PLA on the C64.

CIAs would just need a microcontroller, like one of the smaller Arduinos. You could do it...
Forum: support.Hardware 27 June 2021, 09:33
Replies: 32
Views: 1,703
Posted By AmigaHope
To clarify, he's talking about using a high...

To clarify, he's talking about using a high density drive to read high density floppies, which on the Amiga requires a special drive that spins hd disks at half-speed because Paula can't handle the...
Forum: Retrogaming General Discussion 27 June 2021, 09:23
Replies: 87
Views: 8,313
Posted By AmigaHope
I know I'm stretching but... high res monochrome...

I know I'm stretching but... high res monochrome games that don't flicker (at least not until ECS). Not much used it but some stuff like a good Asteroids port, and of course it was great for text...
Forum: Retrogaming General Discussion 27 June 2021, 09:10
Replies: 37
Views: 2,825
Posted By AmigaHope
As I understand it, color prints in the 19th...

As I understand it, color prints in the 19th century were incredibly hard to make as they worked by taking three shots via RGB filters and then carefully depositing dye for each color in the printing...
Forum: Retrogaming General Discussion 27 June 2021, 08:51
Replies: 9
Views: 726
Posted By AmigaHope
I played this game way too much. =P

I played this game way too much. =P
Forum: support.Hardware 15 June 2021, 23:41
Replies: 21
Views: 1,650
Posted By AmigaHope
It's possible to make adapter boards for various...

It's possible to make adapter boards for various ECS Agnus to fit any system (assuming PAL/NTSC xtal is correct on the non-agnostic ones). These may become more important in the future, though it...
Forum: Nostalgia & memories 15 June 2021, 08:55
Replies: 2,868
Views: 498,155
Posted By AmigaHope
It's not really a bandwidth issue (that's...

It's not really a bandwidth issue (that's determined by pixel clock), it's a just a timing issue. 320 pixels per line has the same effective bandwidth as 640 pixels per line. Neither is anywhere...
Forum: Hardware mods 14 June 2021, 18:55
Replies: 328
Views: 58,189
Posted By AmigaHope
Yup you can max out at about 7 on writes if you...

Yup you can max out at about 7 on writes if you have a small writeback buffer in the glue logic. It only needs to be 8 bytes. Just enough to store one 4-byte write while the previous one is still...
Forum: Hardware mods 14 June 2021, 15:48
Replies: 24
Views: 3,949
Posted By AmigaHope
I mean, who would sue you? Acer? They own all...

I mean, who would sue you? Acer? They own all this stuff now and I don't think anyone there knows or cares. The patents are all expired so the only thing still owned are copyrights on the gerber...
Forum: Hardware mods 14 June 2021, 15:41
Replies: 328
Views: 58,189
Posted By AmigaHope
Chipram speed is basically the speed limit for...

Chipram speed is basically the speed limit for AGA stuff, so big improvements in chip ram speed means big improvements in what it can do, especially with stuff like fblit.
Forum: support.Hardware 14 June 2021, 15:29
Replies: 3
Views: 432
Posted By AmigaHope
Any PGA 68882 should work, I think it only came...

Any PGA 68882 should work, I think it only came in 2 kinds of packages (one PGA package, one PLCC package). You obviously want to use the 50Mhz part since you have a 50Mhz crystal in your system (and...
Forum: Amiga scene 14 June 2021, 15:08
Replies: 542
Views: 47,872
Posted By AmigaHope
A near as I can tell, after the purchase of MOS...

A near as I can tell, after the purchase of MOS in 1976, only existing orders from competitors were filled and it's very hard to find MOS chips in any post-1977 competing products (the latest I've...
Forum: Retrogaming General Discussion 14 June 2021, 09:32
Replies: 28
Views: 2,670
Posted By AmigaHope
I think Jens Schoenfeld was on the right track...

I think Jens Schoenfeld was on the right track with his idea for fast access chip memory (effectively dual-ported as far as the AGA chipset is concerned) on the A1200 Reloaded. Though what would...
Forum: Retrogaming General Discussion 14 June 2021, 09:28
Replies: 42
Views: 2,469
Posted By AmigaHope
There's lots of good Star Wars games! A movie...

There's lots of good Star Wars games! A movie tie-in doesn't HAVE to be bad.
Forum: Retrogaming General Discussion 14 June 2021, 09:11
Replies: 37
Views: 2,825
Posted By AmigaHope
I imagine a lot of them used video capture...

I imagine a lot of them used video capture devices made for generic NTSC/PAL video. i.e. the exact same stuff they used to capture screenshots in the console magazines. They were expensive but had...
Forum: Amiga scene 12 June 2021, 11:32
Replies: 542
Views: 47,872
Posted By AmigaHope
CGA actually worked just fine on TVs -- it came...

CGA actually worked just fine on TVs -- it came with a composite output. If your TV didn't have composite input (many didn't at the time) you could plug it in via a VCR. 80-column modes were just a...
Forum: support.Hardware 01 June 2021, 07:24
Replies: 7
Views: 465
Posted By AmigaHope
There is no "high-pass filter". There are just...

There is no "high-pass filter". There are just two low pass filters -- one that you can turn off (the power LED one) that is very aggressive, another not so aggressive that is permanently on. When...
Forum: Nostalgia & memories 25 May 2021, 04:16
Replies: 37
Views: 10,399
Posted By AmigaHope
Part of the problem was that even though CD gives...

Part of the problem was that even though CD gives you a huge amount of storage, you're still limited by what you can fit into RAM and what your GPU is capable of. All that data on the disc but...
Forum: support.Hardware 25 May 2021, 03:49
Replies: 12
Views: 1,017
Posted By AmigaHope
You can run a tool to settle the I/O before...

You can run a tool to settle the I/O before turning the machine off. It can be scripted into a soft shutdown (though you still have to turn the power off manually since Amiga doesn't have soft...
Forum: Nostalgia & memories 18 May 2021, 23:34
Replies: 141
Views: 28,804
Posted By AmigaHope
He was making a joke. The joke was that you...

He was making a joke. The joke was that you didn't crack the game, you made a replacement codesheet that left the copy protection intact.



A checksum is a simple kind of hash algorithm --...
Forum: support.Hardware 18 May 2021, 23:01
Replies: 12
Views: 1,017
Posted By AmigaHope
I believe it can also help with 020/030/040 code...

I believe it can also help with 020/030/040 code that uses the 64-bit integer mul/div instructions (which you'll obviously not see in code compiled/written for 68000/010).


I definitely suggest...
Forum: support.Hardware 18 May 2021, 22:42
Replies: 2
Views: 377
Posted By AmigaHope
That 300 jumper probably means 300 rpm, which is...

That 300 jumper probably means 300 rpm, which is the normal floppy rpm for both DD and HD disks. To halve the data rate to make a HD disk work with Paula, the drive needs to spin at 150 rpm. This is...
Forum: Retrogaming General Discussion 13 May 2021, 03:19
Replies: 62
Views: 12,887
Posted By AmigaHope
Because of how the game renders, the patches have...

Because of how the game renders, the patches have to render on aligned boundaries, and it might be causing some issues with the drivers for the Warp 1260.

It ran great on my CSPPC/CVPPC combo but...
Forum: support.Hardware 13 May 2021, 03:13
Replies: 3
Views: 574
Posted By AmigaHope
Hopefully it was just the chipram and the alice...

Hopefully it was just the chipram and the alice and lisa are fine?
Forum: Retrogaming General Discussion 01 May 2021, 18:54
Replies: 14
Views: 1,154
Posted By AmigaHope
The big never-go-back moment in the original DM...

The big never-go-back moment in the original DM is when you complete the firestaff by adding the powergem, which then locks you into the bottom part of the dungeon (I believe the golem level and...
Forum: Retrogaming General Discussion 01 May 2021, 18:40
Replies: 46
Views: 5,230
Posted By AmigaHope
Those don't require 1M chip though, they require...

Those don't require 1M chip though, they require 1M total. 512k chip and 512k of any type (slow, fast, or chip).
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