EEPROM on A1200?

[motorollin]

IOW, if I want to use 1MB of kickstart, I have to build a KickFlash device :roll: I'm trying to experiment with UAE but for some reason it won't boot with a 40.68 image from my A1200. Grrrrrr....

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moto

[motorollin]

Well, this rocks quite spectacularly. I used RomSplit to extract a 3.1 ROM image and the 3.9 ROMUpdate. I then removed anything to do with scsi.device (don't need on-board IDE), PCMCIA card (don't need that either) workbench.library (can have that on disk) and the v45 boot menu. Remus then made me a ROM image of everything that was left, and I had 50k to spare. Booted it on E-UAE, and here's the result:



Cool huh! I did get lots of errors in the terminal like "cia_wget: unknown CIA address a8300a PC=f80ede", I hope that won't be a problem when I'm using a real Amiga?

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moto

[motorollin]

Yes that's correct, they are all between those addresses. There was also an illegal instruction, and lost of lines saying "Byte put to custom register DFF110 PC=00FDD8AA" all with different addresses. Is this ok? Will any of these errors cause a problem if the ROM is used on a real Amiga?

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moto

[motorollin]

I have just tested my ROM properly in WinUAE by installing OS3.9. Everything went smoothly, and if I cold boot the emulator with no startup-sequence and type "version" it reports kickstart 45.20 and Workbench 45.1 :-)

Setpatch still reboots the machine on cold boot. I'm guessing this is because it's not clever enough to realise it already has 45.20 in ROM, and softkicks the update anyway. Deleting AmigaOS ROM Update stopped this though.

As soon as I get a reply from Willem confirming what hardware I need to programme the chip, I'm going to order  :-D

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moto