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possible boot disc
Chris - May 1, 2004

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  arromdee Jun 13, 2004
I already asked this on the Tototek forum, but does anyone know how the CD Key/Pro-CDX work? Do they just use software (in which case it might be possible to do something similar on a boot disk) or do they have special hardware?

 fonzievoltonov Jun 13, 2004
The CDX have certainely a hardware mecanism to put the genny in segacd mode after it have read the rom.

Because, the genny with a cdx seems to boot directly on the cartrige (and not in the bios).

I opened mine and there are 2 chip inside... I wasn't able to determine which type there are (because, the names are strongly erased).

You should look at the GENESIS PROGRAMMING FAQ V6 (from CMD), i think they speak about it.

Bye

Fonzie

 ExCyber Jun 14, 2004
From what I've heard, they use special hardware to essentially patch the BIOS as it is being read by the CPU.

 fonzievoltonov Jul 5, 2004

  
	
	

		
		

			I recently hit a bit of a snag. It would seem that either the BIOS or maybe even the CD controller itself fails to reread the TOC after a disc swap. If you try to read from a block address beyond the range of data on the first CD, the read will fail even if its a valid address for the CD you have just inserted. It could be a little while before I figure out how to get it to reread the TOC.


Reading the TOC? A piece of cake, lol.

(Just remember me the next time w'll meet, MOD)

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