Amiga questions you've always been too embarrassed to ask

[idrougge]

Not that I know of, but you can use boards.library to check for the presence of a specific card, so if your accelerated setup involves a particular card, you can check for that instead.

[emufan]

hmm, the cpu command has a CHECK option.
not tested but something like:

cpu CHECK 68020
if WARN
--> no 68020 -> do something
else
--> we have a 68020 CPU -> do something
endif

[E-Penguin]

Great, thanks, I'll give that a go

[emufan]

Originally Posted by E-Penguin

Great, thanks, I'll give that a go

i made a mistake in the example, i hope it is now correct

[idrougge]

Originally Posted by emufan

hmm, the cpu command has a CHECK option.

Nice find! I did check (hehe) out the CPU command first, but oversaw that option.

[emufan]

yep. once looking at some installer script, i run over it.
i guess some shell/cli based installer of an old app.
not sure, maybe commodore installer is doing it the same way.

[daxb]

In ARexx you can do this to get some info (incl. FPU):

rx "PARSE VERSION VerStr; SAY VerStr"

or

rx "PARSE VERSION . . cpu .; SAY cpu"

[idrougge]

And if you RETURN (cpu>68000)*5 you will have the same result as CPU CHECK.

[daxb]

With Arexx you can get a lot of current prog and system information. Some time ago I wrote a senseless function where you can get all the info.

[amiga_Forever]

Luckily someone asked in an Amiga CD32 gamer mailbag, but "Why does any Amiga CD32 disc fill half of the disc ever" ?

You can probably only to hardware limitation, long longer times on a double speed CD ROM dive, but i've never seem a CD32 disc ever make use of not even half the CD let alone the full CD... umm..Possibly "Britannica's encyclopedia" but not much else. I culd never get that facts as why this was not possible to do? You have all that space, why not make use of it... Even if say titles took longer to produce just to give better impression, don't this much more important then we gotta get them out as door ?

(note: i always thought when my Amiga experienced the GURU mediation "software failure" my Amiga was drunk) but lucky i'm not a kid anymore

[idrougge]

What are you going to fill the disc with? The CD32 has only 2 MB of RAM and weak support for playback of movies.

[amiga_Forever]

More levels ? *shrugs* graphics, sound? Probably won't even take that much... I see your point..

[demolition]

Some games use the space for in-game music in the form of CD-Audio which can quickly use up some space.

[Predseda]

Question: does my Amiga have the some power consumption on PSU if I use one or more displays together? (when each monitor has its own PSU)

Also does the consumption depend on screen resolutiion?

[demolition]

Originally Posted by Predseda

Question: does my Amiga have the some power consumption on PSU if I use one or more displays together? (when each monitor has its own PSU)

Also does the consumption depend on screen resolutiion?

The Amiga does not power the display no matter if you use RGB, Composite or RF so it will not change the power consumption how many you have connected.
The consumption will increase a little bit if you use higher bit clocks like Xtreme or HighGfx modes, but it is very little and practically insignificant (although you can notice that Lisa gets slightly hotter). Whether you go 640x256 or 640x512 should not matter since that is the same pixel clock (one is 50 Hz, the other is 25 Hz).

[Jope]

Yeps, the Amiga always runs at almost full blast, this is from the time before chips that turn parts of themselves off or throttle their clock speed. :-)

[demolition]

Just like PCs running DOS or Win3.x would also run at 100% all the time. In Win95/98 they would also run at 100% although here there were tools available which could be used to keep the CPU cold in idle. I remember using a program called 'Rain' in Win98 which ran a low priority idle thread similar to what is native in later OSs (the simple version is a loop of HALT instructions), effectively shutting off the CPU when it has nothing better to do.

Does MC680x0 not have a similar instruction which will turn it off for a short while so a similar outcome could be achieved?

[Sinphaltimus]

May sound stupid but I never claimed to be smart.

According to this guy's blog https://amigax1000.blogspot.com/2016...l#comment-form

you cannot use a SCSI controller with the Vampire A500v2+ if the SCSI card (eg. GVP Impact Series II A500HD+) uses scsi.device. It will work with other SCSI controllers that do not use scsi.device so my stupid question is this...

Can I just rename scsi.device to gvpscsi.device and change tooltypes in HDtoolbox then it will work, or not because scsi.device is hard coded in the SCSI rom?

NEVERMIND - The plot thickens - my GVP scsi device does actually use gvpscsi.device and not scsi.device so the plot thickens.

[Locutus]

even if another scsi.device would be autoloaded from rom or such the OS is smart enough to rename it then to 2nd.scsi.device....

I'm kind of curious what is going on there really.

[idrougge]

Originally Posted by Sinphaltimus

May sound stupid but I never claimed to be smart.

Never mind, what you describe is the opposite of smart. Incompatibility with a device because of its name, what will they come up with next?