Clean unused init bytes #136
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These bytes are remnants from the vanilla rom and aren't used by anything. They appear to be either an incorrect version of the Famicom Disk System Interupt/Reset vector controls, or the correct version of the same controls for an internal development platform. Either way they can be cleaned up. from: https://www.nesdev.org/wiki/FDS_BIOS#Interrupt/Reset_vector_controls > Interrupt/Reset vector controls > The FDS BIOS uses 4 bytes at the > lower end of the stack page to control the behaviour of interrupt/reset > vectors: > > [$0100]: PC action on NMI. $C0 (NMI #3) on reset. > [$0101]: PC action on IRQ. $80 (BIOS acknowledge and delay) on reset. > [$0102]: RESET flag. $35 on reset after the boot files have loaded. > [$0103]: RESET type. $AC = first boot of the game, $53 = the game was soft-reset by the user.
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funny how this took so long 👍 |
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