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NeXT ROM Format

 
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Venture37



Joined: 30 Dec 2005
Posts: 57

PostPosted: Tue Apr 11, 2017 10:50 am    Post subject: NeXT ROM Format Reply with quote

Is there any documentation on the ROM Format or any code which interacts with it?

I've opened an issue in radare2 to get support for the ROM added and some reference material besides binaries is needed to help things along.
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neozeed



Joined: 15 Apr 2006
Posts: 691
Location: Hong Kong

PostPosted: Sun May 07, 2017 5:11 am    Post subject: Reply with quote

CD-ROM or PROM ROM?

I'm still looking to see how they made those UFS CD-ROM master images.
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Venture37



Joined: 30 Dec 2005
Posts: 57

PostPosted: Tue May 09, 2017 5:18 am    Post subject: Reply with quote

Hi Neozeed
Long time Smile

I'm looking for details about the PROM.
I recall someone made a bootable iso on here but that might just have been for x86 (adding the bootfloppies to an iso perhaps).
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neozeed



Joined: 15 Apr 2006
Posts: 691
Location: Hong Kong

PostPosted: Tue May 09, 2017 6:15 am    Post subject: Reply with quote

Venture37 wrote:
Hi Neozeed
Long time Smile

I'm looking for details about the PROM.
I recall someone made a bootable iso on here but that might just have been for x86 (adding the bootfloppies to an iso perhaps).


Long time! I couldn't find u last time I was in the UK.. I'm in Hong Kong now though.. sadly without any black kit, my ex took everything. Crying or Very sad

Check out the porting thread. Darwin source has been located, and it builds!!! I think this is what we've been waiting for! It'll boot single user from a NeXTSTEP or OPENSTEP CD!!!
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neozeed



Joined: 15 Apr 2006
Posts: 691
Location: Hong Kong

PostPosted: Tue May 09, 2017 6:40 am    Post subject: Reply with quote

Oh I forgot.

We also have source to the plan9 port

http://unix.superglobalmegacorp.com/cgi-bin/cvsweb.cgi/lucent/sys/src/9/next/?cvsroot=Plan%209
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cuby



Joined: 12 Jan 2006
Posts: 164
Location: Coburg, Germany

PostPosted: Tue May 09, 2017 10:10 am    Post subject: Reply with quote

It seems that the Plan 9 sources don't make much use of the NeXT ROM functions - however, NetBSD does. Some information on the available functions can be found in the standalone boot sources and header files included from there.

See
http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/arch/next68k/next68k/nextrom.h?rev=1.11&content-type=text/x-cvsweb-markup
for offsets into a jump table and
http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/arch/next68k/stand/boot/machdep.c?rev=1.7&content-type=text/x-cvsweb-markup
as well as http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/arch/next68k/stand/boot/machdep.c?rev=1.7&content-type=text/x-cvsweb-markup for an example of how these are used (MON macro, but there also seem to be some relocations used outside of standalone mode, didn't look into what happens there so far).

Hope this helps,
Michael
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