A1000 & ks

[Art]

Whare does bootstrap come from then?
in WinUAE you can load a file as a ROM which is an 8Kb bootstrap,
then it makes a short tune, and asks for Kickstart floppy, then for Workbench.

[Art]

That would be a minority, I didn't have an A1000 until later,
but for the A500 I would have been glad to have it in a solid state device
rather than something that wears out, before load times entered into it.

With that 8K bootstrap, everything from the 7817th byte is all 1s.
A lot of what is before that would have to be data for the hand holding disk image.
I don't know what it would take to reset it in such a way to make it remember to
just look at that little bit of data it needs to boot, and then check the floppy disk,
but the image data for the hand holding blue Kickstart disk doesn't appear to exist
in the Kickstart 1.3 ROM, and it would need to be if it had to show that screen.

[Art]

Is that the thing to load it into some of your RAM?
We did that to run 2.0 when we really only had 1.3 ROMS.
but you lose some of your RAM.
Dirty pirates we are.. I later got it though.

[Art]

@Art

The kickstart "hand" image is definitely in there but is most likely compressed. Looking at the picture it would be a good candidate for run-length encoding and also may be coded in a lower resolution than even 320x200 (e.g. just output the same colour for two pixels instead of one). Most of the screen itself is likely to just be a background colour that doesn't require a bitmap. The bitmap itself is centred where the pic is.

It isn't compressed in the V1.3 ROM image, but I think it is in the 8K bootstrap.
In the V1.3 image it is split into tiles all over the place.
It looks as if deliberately making it difficult to change.
It is also more than one bitmap.
I suspect up to four layers for some parts of it, but at least two.
The part where is says "Amiga" for example, is at least two layers
(maybe for some antialiasing?),
One layer of the "1" in "1.3" (for the Workbench requester)
is all on it's own, and so is one layer of the "bench", and one layer of the "Work".

I'm willing to bet this image has never been customised.

The actual hand and disk might be drawn the way you say.

[Art]

The green ones in this image I have verified by changing them and reloading Workbench.

[Art]

There might be reasons why they wanted some program code to be sequential,
and some of it to begin at even addresses in the ROM, and just used the
fragments left for imagery...
or they might have been trying to be difficult,
giving someone in the year 2013 a headache!

[Art]

+1 always kick my kick disk in my df0 and my 1000 boots up from my extrenal scsi drive.  FWIW, all my original disks work fine and I love the sound of the drive singing before the scsi drive takes her to WB:biglaugh::cool:

Great!

Could someone do me a favour, and take a worn disk such as all your Kickstart disks
and measure (with a ruler), the radius of the disk that is actually
read by the head.. it must be a little smaller than the opening in the shutter.

Be sure it's not a metal ruler that has become magnetised.

It probably sounds odd... but I don't have a floppy disk. I'll tell you why later