Questions tagged [amiga]

For questions related to the Commodore Amiga family of personal computers.

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12 votes
3 answers
1k views

How are Amiga Kickstart Relocation Files (.RTB) created?

Examples of Amiga Kickstart files (ROMs) can be 256k (1.2/1.3) or 512k (3.0/3.1) binary files, located at $FC0000-$1000000 or $F80000-$1000000 Several programs are able to "soft-kick" Amigas, i.e. ...
6 votes
3 answers
242 views

Looking for a multiline text gadget for Intuition on a 1.3 Amiga

I've come to understand that Intuition, the GUI framework on the stock A500 has 4 types of gadgets: 'boolean' - checkboxes and buttons 'Proportional' - sliders string inputs integer inputs I'm ...
14 votes
3 answers
3k views

How exactly did Amigas without a RTC "work around" this to produce "internally consistent" timestamps? [duplicate]

I recently read about how even the non-RTC-equipped Amiga computers has some sort of "clever trick" in them which caused the timestamps for saved files and whatnot to still be "...
9 votes
1 answer
781 views

On Amiga, what happens when I write to $DFC5A0 by mistake?

I'm fixing a game (TV Sports Basketball) that tries to write in audio data (using the range $DFF0A0 to $DFF0D0) but for some reason (bad programming), the index is sometimes (not always) bogus MOVEA.L ...
34 votes
5 answers
5k views

Was the Amiga ever used by any U.S. Government agency?

This is a long shot question, and I'm asking only because, well, I'm not entirely certain why I am asking... NBC Nightly news did a short piece on April 18th, 2022 talking about the IRS being ...
61 votes
8 answers
8k views

Are there any modern compilers that can generate Amiga/m68k executables?

I would quite like to resurrect my openkick project. As I note on that project's README.md, it is stalled because GNU GCC is not fit for purpose. Sadly, there do not seem to be any other modern ...
7 votes
1 answer
522 views

What was an Amiga "X-Drive"?

In computer magazine personal ads from the 1990s, I notice multiple mentions of Amigas "with X-Drive". Searching online, I find no mention of this. (Possibly this is because search engines ...
17 votes
7 answers
3k views

Were all Amigas except for A1000 un-upgradeable OS-wise?

In his latest video, "The 8-Bit Guy" on YouTube talks about the original Amiga 1000: https://www.youtube.com/watch?v=kjapiUQOi2s One of the things he mentions is that, unlike all later ...
8 votes
4 answers
3k views

How to create fast an icon file for Amiga program in WB drawer?

I have copied one program from a floppy to a HDD drawer (I created for it) and I want to start this program directly, without going through [Window] → [Show] → [All Files] first in my Amiga Workbench (...
6 votes
3 answers
548 views

Were commercial Amiga floppy disks shipped with write protection?

In this Amiga "quick kickstart guide" magazine thing that I have from when I bought an Amiga 1200 long ago (it seems to be printed in late 1995), they really go out of their way to point out ...
25 votes
5 answers
3k views

Why did the stock Amigas not have a battery for keeping the time/date?

The Amiga computers were advanced machines meant to do all sorts of things, including file management. They had a GUI OS (Workbench) and everything right from the very start. They were not some games-...
15 votes
7 answers
2k views

Amiga floppy disks and GCR vs MFM

According to the Wikipedia article on GCR, the Commodore 1541 disk drive used a particularly efficient GCR encoding scheme to cram 170K onto the same 5.25" disks that in an Apple drive only ...
15 votes
9 answers
4k views

Cost of PC vs. Amiga 500 in Europe

Based on Commodore sales figures, and other historical claims, the Amiga achieved its peak popularity in 1990-91, with European sales being the leader. By 1990, with the rapid fall in PC clone prices, ...
5 votes
6 answers
805 views

Amiga game about a detective or a spy in some kind of hotel building

There's a game I played as a young child in the 90s that I am 99% sure was on an Amiga. I've searched high and low and cannot find it, and am beginning to wonder if my memory is not accurate. I ...
20 votes
6 answers
9k views

How did early computers handle mice?

Early computer mice worked by sending a series of pulses; the more rapid the movement, the higher the frequency. How was this handled at the computer end? At one level, it sounds easy: just run a loop,...
13 votes
5 answers
5k views

Amiga 500 OCS/ECS vs Mega Drive VDP

Superficially the Amiga 500 and Mega Drive are similar. Both run a Motorola 68000 CPU at similar clocks and both have dedicated hardware for sprite and other graphics operations. Comparing the arcade ...
16 votes
1 answer
357 views

What happened to IntelliFont (i.e. Amiga vector fonts)?

One of the oft maligned weaknesses of AmigaOS 1.x was that the included bitmap fonts were not very good, especially when compared to those included with Classic Mac OS. Commodore closed this gap with ...
18 votes
2 answers
2k views

What made the Amiga "Genlock-able"?

Right at the moment the original Amiga A1000 was being introduced, Commodore was already advertising its ability to use a Genlock peripheral, and promising that Commodore's own Amiga 1300 Genlock ...
4 votes
2 answers
206 views

How to get the inner dimension for Amiga Intuition window with GIMMEZEROZERO Flag?

I am sizing the contents of my Intuition window relative to the space available in the window. A regular window exposes its initial dimensions via my_window->Width and my_window->Depth, however ...
5 votes
3 answers
710 views

What tricks or techniques were used to speed up AmigaOS boot

I did an installation of Workbench 3.1 grounds up. The system takes a moment to boot, well over a minute. I've watched a YouTube video where the system booted in seconds. I have another image of ...
18 votes
3 answers
3k views

Which retro system controllers are compatible with Amiga out of the box

I read an article that people were using various means of user input in their Amiga 500 computers as an alternative to joystick. Most notable, Sega Mega Drive, Sega Master System, CD32 / Competition ...
3 votes
1 answer
257 views

Python2.4 Amiga OS M68K restarting system and where to get libs

Just installed python 2.4 on my Amiga os3.9. sometimes when I run a script the machine restarts. Any idea why that may be? It has 030 with MMU, 64MB RAM and 1MB chip ram. All MMU libs are installed. ...
19 votes
2 answers
2k views

Why do drives occupy memory on Amigas

I was reading this question, and it sparked an old memory. I had an Amiga 600 a long time ago. And I used to play Secrets of Monkey Island on it, great game. But then I upgraded the computer and ...
17 votes
4 answers
4k views

Is it possible to expand Amiga 500 rev 8 to 1.5 MB with a 1MB trapdoor expansion?

Is it possible to expand an Amiga 500 rev 8 (not an Amiga 500 plus) to 1.5 MB of Chip RAM using an A501+ expansion? It is plug and play or are modifications required? This is the board: Source: ...
3 votes
2 answers
619 views

CF partitions not showing up in Workbench

4GB Compact Flash KS 3.1 40.68 WB3.1 Latest WinUAE I just created a Compact Flash (compatible Transcend) partitions under Workbench on latest WinUAE using this guide. Despite following the steps my CF ...
13 votes
2 answers
2k views

Should I use the internal or external drive for loading Amiga 500 games?

I have a working (I think) Amiga 500 system with an internal DF0 drive and an external DF1 drive. The Amiga 500 powers up with Workbench v1.3. Can anyone tell me how to access a game disc (Marble ...
4 votes
0 answers
220 views

Amiga 500 programming for newbies with gnu c++ @all [closed]

my Amiga 500 is dead, but I loved the time with it, so I use Windows UAE. I'd like to programming a little bit it with the Visual Studio C++ or other GNU C/C++. It is hard to do this? I have no ...
16 votes
3 answers
4k views

What happened to ZIP RAM?

I have several retro machines and add-on cards for the Amiga that use ZIP RAM. This vertically mounted chip design enjoyed a brief popularity in the early 1990s, in between the original DIP DRAM and ...
10 votes
1 answer
1k views

Did any significant programs or environments take advantage of the Rexx language which came with PC DOS 7 (aka PC DOS 2000)?

Being an Amiga fan, I have a fondness for the Rexx language. On that platform, almost every significant program supported ARexx, allowing a high degree of interoperability and customability. So when ...
31 votes
6 answers
14k views

Can I image Amiga floppy disks on a modern computer?

Is there any way of reading Amiga floppy disks to a PC hard drive? Can I use a standard floppy drive with a firmware program that will translate it? Do I need an external drive or a working Amiga ...
12 votes
1 answer
410 views

Amiga A1050 schematic

I’m trying to resurrect a Craigslist Amiga A1000. After replacing Paula it now boots. Several basics still missing (RF shields, screws, port covers, etc.) but essential electronics are okay. However, ...
5 votes
5 answers
550 views

Save state systems

With an Amiga A500, Action Replay cartridge (v1.5 or later) and memory expansion, it was possible to save a copy of the state of memory, much like a save state in an emulator. Were there any other ...
7 votes
0 answers
187 views

How does Amiga HDToolbox calculate size?

I've been toying around with various drive geometries using the classic HDToolbox from 2.x/3.1 on my Amiga. What I've discovered is the total size calculated is always 1 cylinder short of my own ...
9 votes
2 answers
390 views

Does "Heart of the Alien" use the same game engine as "Another World"?

Another World is a classical game originally for Amiga and Atari ST and subsequently reimplemented for many retro and modern platforms. As described by Fabien Sanglard the game is implemented in ...
33 votes
8 answers
36k views

How can you connect an Amiga 500/600/1000/2000 to a modern monitor?

I have an Amiga 500 that I'd like to get up and running again, but the 1084 monitor with which I used to use it has flyback transformer issues. What options are available to hook it up to a modern ...
13 votes
3 answers
2k views

Is there a seamless, Wine-like AmigaOS emulator for Linux, specifically for text-based programs?

After trying out FS-UAE on my Fedora Linux system, which worked quite nicely, I got to thinking. Even though when the Amiga was originally released in the middle 1980s, it was revolutionary in its ...
5 votes
2 answers
539 views

How to SSH from Amiga to remote Linux host

With a new purchase coming in shortly I wanted to ask what do I need to be able to SSH to a remote host from an Amiga: Make modem work and connect to my network: https://www.ebay.com/itm/KCWIFI-PRO-...
12 votes
1 answer
803 views

How Amiga A590 autoboot ROM and bootable floppy disk works?

Commodore A590 was a peripheral hard drive and memory expansion unit for Amiga 500/500+ computers. It provides SCSI and XT-harddrive controller and 2MB Fast Ram. Here is the Big Book of Amiga Hardware ...
10 votes
1 answer
295 views

How to find what is using Chip RAM?

My AmigaOS should have more Chip RAM available to use than it reports (only 800 kB). Is there a way to find what is sitting in Chip RAM and how to move it to Fast RAM instead?
5 votes
1 answer
395 views

How can I run OpenSSH under AmigaDOS?

I want to use OpenSSH for Amiga, copied ssh and other files to OS:Utilities from extracted archive, but I'm unable to run the binary. Tried to set protection but it didn't help either. How to make it ...
4 votes
1 answer
339 views

How does stack size affect functioning of AmigaOS and programs?

A few weeks back I had an issue with a Python script resetting my Amiga on execution. Someone suggested to change stack size in startup-sequence to 4096. I just read that it can be set up to 2500000. ...
1 vote
1 answer
263 views

Amiga OS3.9 unable to run iGame error #8000000B

AMIGA CDTV, 68030 MMU, no FPU, KS 3.1.4, WB3.9 + BBs, MUI3.8, Required Libs. I followed all the requirements swapping guigfx with non-FPU equivalent and I'm not able to get iGame to run. When FPU is ...
8 votes
1 answer
322 views

Amiga File Manager with keyboard navigation

Is there a file manager for Amiga OS 3.x, something like Directory Opus but keyboard-driven, which feels more like Midnight Commander or Total Commander, where all the navigation is done by keyboard ...
14 votes
2 answers
2k views

How would I reliably detect the amount of RAM, including Fast RAM?

If I was to write an Amiga game, what would be the best/most reliable way to detect how much RAM is actually available? Looking at Action's Guide to AGA-Fixing!, he mentions Faulty Memory Detection: ...
0 votes
0 answers
94 views

best port (on laptop) for using laptop display as monitor for an Amiga [duplicate]

i am looking to order an Amiga 500. i wanted to use my Thinkpad L420's display as a monitor, but it seems it doesn't have a port that would work for that. the thinkpad needs replacing anyways, so i ...
28 votes
1 answer
3k views

Why are the later revisions of the Motorola 68060 heavily sought after by Amiga fans?

I have come across a few sources online in forums and on YouTube information related to using the Motorola 68060 in Amiga accelerators and the difficulty in sourcing genuine late revision parts. ...
23 votes
6 answers
2k views

Does the "Amiga Client for Novell NetWare" exist?

On page 139 of Brian Bagnall's book "Commodore: The Final Years", there is the statement that at CeBIT Hannover in March 1989, Commodore announced (amongst other things) "Novell Netware for Amiga". I ...
3 votes
1 answer
197 views

How do I setup this Kickstart switcher?

I can not find any documentation for this Kickstart switcher. It's labeled LS A9211-3 © FH 1992. How must the jumpers J1 and J2 be set and where must the KB and RES lines be connected to? I want to ...
7 votes
3 answers
580 views

How does Symphonie Pro actually work?

I just happened upon this video: https://www.youtube.com/watch?v=6tNizdyx-DE It's a selection of Amiga music produced using a program I've never heard of before: "Symphonie Pro". Does ...
20 votes
1 answer
2k views

What size screws were used in the Amiga desktop cases?

On the Amiga 500, 500+, 600, and 1200, what size screws were used to hold the chassis together? Is it the same size screw for all, different screws per machine, different screws front and rear, or ...

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