Todo/Mysteries: Difference between revisions

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m (BIOS seems to work fine without $380065/$380067. must have had bad burns before)
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==Registers==
==Registers==
*What are $380011, $380061, $380065, $380067, and $3800E1 used for ?
*What are $380011, $380061, $380065, $380067, and $3800E1 used for ?
**smkdan: I noticed one time I tried running a burned BIOS that didn't have those init regs on my MV-2F and it was permanently stuck in a reset loop.  AES BIOS doesn't not have that code and is known to not work on real MVS. It's probably MVS specific init code for neo-b1 or protection to stop bootleg BIOS running on MVS? will confirm later on.


SP-E init code:
SP-E init code:

Revision as of 10:07, 12 July 2011

Registers

  • What are $380011, $380061, $380065, $380067, and $3800E1 used for ?

SP-E init code: 

	move.b	d0,$380065
	move.b	d0,$380067
  • CD registers

Others

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