Homemade kickstart for A4000T
 

Edit: Just found this: http://www.amigaroms.com/
sure looks like its own ROM for A4000T which I havent found.



Just a quick question regarding A4000T.

I know it has a special 3.1 rom without workbench.library. Is that the one called 40.70? I've not been able to find any rom specifically named "A4000T". I guess not since when I try to load the 40.70 A4000 romfile I have in ROMSplit, it says its "an unsupported 4000D kickstart".

Also in ClassicWB, there are a few scsi.device editions. I like 43.45 and in it, there are two scsi.devices for A4000
A4000IDE.scsi.device
A4000TSCSI.scsi.device

My question would then be, can I take the normal A4000 40.70 rom, leave out workbench.library and stick the A4000TSCSI.scsi.device in there as well, and have it work on A4000T? I would not need the A4000IDE.scsi.device or should I toss both in there?

And am I correct in that the A4000T does not support 1MiB roms, as is the case with the A4000? Seems so, why else would they leave out the workbench.library, but does not hurt to ask.

Thanks in advance.

A4000 models dont' support 1MB ROMS.
Your ROM will work correctly by taking the 4000D version and only putting inside the NCRscsi.device module (which is meant for SCSI interface of A4000T).
If you leave outside the normal scsi.device (which is meant for the native IDE interface) you'll only miss the support for the onboard IDE and that's all :)

Excellent. Thanks. Now to figure out how to fit both the 43.45 scsi.devices.. missing 10kb for them both (3.9 rom)

I cant use ROMsplit on a rom file to get NCRscsi.device. Seems it does not support splitting that romfile. Have to find it elsewhere.

Going back from icon.library 46.4.271 to standard 40.1 leaves me with 6124 bytes free after both IDE and SCSI scsi.device devices are in. Sweet!

Edit: Never mind. Icon library 40.1 was updated in boingbags. Need to get a hold of that one, only smaller then 46.4.271

Edit: Nope. Can fit it all for a 3.9 rom. Have to sacrifice IDE or SCSI support. Stupid humongous icon.library

While I'm on it, is there a place to easily see the latest libraries that can be included in kickstarts? Just now I found Console.device 44.10 where I've only had 44.8 before.

Current list:

Modules/44.57_ROMUpdate(3.9bb2)/exec_45.20(A1200-A500)
Others/Blizkick/1MB_ROM
Modules/40.68(A1200)/audio.device_37.10
Modules/40.68(A1200)/battclock.resource_39.3
Modules/40.68(A1200)/battmem.resource_39.2
Modules/44.57_ROMUpdate(3.9bb2)/T45.057.006.bootmenu_44.7(68020))
Modules/40.68(A1200)/card.resource_40.4
Modules/40.68(A1200)/carddisk.resource_40.1
Modules/40.68(A1200)/cia.resource_39.1
Modules/40.68(A1200)/con-handler_40.2
Modules/BB+/console.device_44.10
Modules/3.9bb4/datatypes.library_43.48
Modules/40.68(A1200)/disk.resource_37.2
Modules/40.68(A1200)/dos.library_40.3
Modules/40.68(A1200)/expansion_40.2(A1200)
Modules/44.57_ROMUpdate(3.9bb2)/filesystem.resource_45.10
Modules/40.68(A1200)/gadtools.library_40.4
Modules/3.9bb4/filesystem_45.16
Modules/40.68(A1200)/graphics.lib_40.24(AGA)
Modules/40.68(A1200)/input_40.1
Modules/icon.library/icon.library.46.4.271
Modules/40.68(A1200)/keymap.library_40.4
Modules/40.68(A1200)/layers.library_40.1
Modules/40.68(A1200)/mathffp.library_40.1
Modules/40.68(A1200)/mathieeesingbas.lib_40.4(020)
Modules/40.68(A1200)/misc.resource_37.1
Modules/40.68(A1200)/potgo.resource_37.4
Modules/40.68(A1200)/ramdrive_39.35
Modules/3.9bb3/ram-handler_44_24
Modules/40.68(A1200)/ramlib_40.2
Modules/40.68(A1200)/romboot_40.1
System:MyFiles/Install/LargeHD/128GB_Support/SCSI_v43_45_ChrisToni/A1200IDE.scsi.device.43.45
Modules/40.68(A1200)/timer.device_39.4
Modules/3.9bb3/shell_45.27
Modules/40.68(A1200)/trackdisk.device_40.1
Modules/40.68(A1200)/utility.library_40.1(020)
Modules/40.68(A1200)/wbtask_39.1
Modules/BlizKick/NoClick
Modules/BlizKick/SpeedyIDE

Others/RomHeader/romheader
Others/DummyCDstrap/DummyCDstrap
Modules/BB+/workbench.library_45.132
Modules/40.68(A1200)/intuition.library_40.85

Im about to start the custom kickstart journey for my a1200,

Can i burn a 1mb image to 2 512k roms and use in a real 1200? That way ill have room for all the updated libraries.

I would like to see a micro drive boot directly from the PCMCIA port (A1200)

@zharn
Ofc you can.
You can check a guide I wrote some time ago here:
http://www.mfilos.com/2010/12/guide-...kickstart.html

@delsay
2 more weeks :)

Fantastic guide! What are the best EEPROMS to use for this purpose? Can I erase an existing original EEPROM and overwrite it with my amendments?

Homemade kickstart for A4000T
 

You want to use an electrically erasable programmable read only memory? And you want to reprogram a KickStart read only memory?

hi mfilos, im using your cool guide as a ref, but i want to use 512k eproms instead of the stock 256k roms on a real 1200. Will that work?

i can answer my own question, yes it does. followed the guide, and updated graphics, icons and scsi to later ones. it didnt like me using a later exec. anyway did what the guide said, and did testing on emu then when happy burned onto 2 512k eproms and worked first go.

Re: Homemade kickstart for A4000T
 

Where did you get eeproms from? Did you use Willem for programming?

Lets say you used 27C400 105ns EPROMs (UV light erased, hence the clear window on top) to replace the original KS ROMs; these are 256Kx16 each and two equals 512Kx16. You could use an inexpensive Willem programmer. If you want to add modules beyond that size, it becomes more difficult. If you chose an EPROM like above, and not an EEPROM, you could purchase them from sellers in China or California off eBay. An EPROM that is too slow in ns access time will not work. Searches for these faster than 105ns seem futile.

The type that Zharn seems to be using would be 27C800 for 512Kx16 each and likely available and programmed the same as the others.

a standard ks 3.1 rom is 512k (low is 256k and high is 256k)

remus allows you to make a standard and extended roms of 512k each (so you get an extra 512k to play with) then it has a script to byteswap and create the low and high rom images ending up being 512k each.

all sizes quoted are actual file sizes in kilo bytes, im using the 27c400 (512k,40pin) not the 27c800 (1024k,42pin)

I made another last night and applied all the bb updates, kingcon, the recent icon, scsi, graphics. ive still got room for hrtmon but havnt found the romable version or too much info on that one yet.

1.8mb of chip is very nice... everything that worked before still works, i would expect more as more chip is now avail as i was using loadmodule before.

any good places to look for romable hrtmon?

yes ebay for roms and willeem parallel with adaptor all ebay.

Homemade kickstart for A4000T
 

So you have successfully burned a pair of (EP)ROMs with a custom set of modules and replaced the original ROMs in your Amiga, and all is working normally?

yes, a pair of 512k eproms 27c400 in a 1200, rev 1d4 (main machine) and a rev 2b (bare board bench test booting wb31 off floppy).

i found HRTmon on here and other goodies which ill test/burn in another pair of roms when i get home later today.

http://lilliput.amiga-projects.net/ROM_modules.htm

Homemade kickstart for A4000T
 

Ok

you can even dual boot the amiga using two 27c800's with two kickstarts say 3.1 and 3.9 on the 1200.using a switch and a resistor.

oh i think the usable speed for a eprom on an amiga would be about 150ns faster than that woulnt make any difference.
slower might not work at all.

can a 1200 work on ks 1.3? dont need cf to work, just df0(hxc)

if youve ever soft booted a 1200 for 1.3 then i would imagine you could.