Startup Register Values

NESmongoose · Post by **NESmongoose** » Mon Apr 07, 2008 3:47 am

Hi.

I'm currently debugging my CPU by comparing the execution of mine against the execution of FCEUXD SP.

Whilst doing this, its looking as if FCEUXD uses different startup register values (at least in the PPU status register).

I was wondering if anybody knows of a reference for the register startup values of the CPU, PPU and APU?

Thanks

Post by **tepples** » Mon Apr 07, 2008 6:13 am

As far as I can tell:

http://nesdevwiki.org/index.php/Power-Up_State

http://nesdevwiki.org/index.php/Power-up_state_of_PPU

NESmongoose · Post by **NESmongoose** » Mon Apr 07, 2008 10:43 am

I cannot believe I missed that

.

Thank you very much.