Amiga 1000 Kickstart Eproms/Roms

[amigaksi]

>I would like to program a set of 1.3 Eproms for one of my other machines. Is this a simple ODD-EVEN Split with a byte swap (from a 256k binary file) between a pair of 27256 Eproms or is it more difficult than that?

I programmed the amiga end of MPDOS into the ROMs of an Amiga 1000 using a standard a1000 motherboard (picture as given by CLS2086).  I used a pair of 27C256.  The ROM on the left in the picture contains the even bytes (D8..D15) and the ROM on the right contains the odd bytes (D0..D7).

[amigaksi]

>There are two articles which cover installing Kickstart EPROMs in 2-layer A1000 boards. There are several different methods, two of which remap the old Kickstart WOM/RAM to $F80000 (you use an AddMem program to manually add the memory at $F80000-$FBFFFF).

Does it state anything about the type of EPROMs supported by standard A1000 motherboards-- 27C256 or 27C512 or both?  

I was thinking that even if you have only two EPROMs on a standard A1000 motherboard, as long as they have the extra address line (A15), it should be possible to losslessly compress the KS 1.1 (at least) into the 128KB EPROM space and decompress it into the 256KB KickRAM when you boot up A1000.  Thus, you won't have to solder any new ROMs-- it would just be a simple plug and play solution.  This of course assumes, the Kickstart does not call functions in the bootstrap kickstart in the EPROMs while loading Workbench.

The Decompressor would have to fit into the same space as the compressed KS EPROMs.