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TLB exception problem

Hacktarux

Emulator Developer
Moderator
Can any n64 emulator's programmer say me what the BEV bit do ?
It seems that it is not used on the n64 but I'm not sure.

Thanks
 

Rice

Emulator Developer
BEV - Boot flag. If this flag is set, r4k is using special exception vector (Boot Exception Vector) instead of regular exception vector.

Because emulators are not executing the boot code but just simulate it, (emulators are never doing the real boot, but go directly to post-boot code), so this flag should never be set. In other word, this bit is not used in emulators.
 
OP
Hacktarux

Hacktarux

Emulator Developer
Moderator
Thank you

I posted this because the BEV flag was anormaly set on my emu but I've just found why !
 

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