darkhog wrote:MIRRORING = %0001 ;%0000 = horizontal, %0001 = vertical, %1000 = four-screen
;;;does above still apply to mapper 30?
For mapper 30, %0000 and and %0001 still indicate fixed H/V mirroring.
%1000 and %1001 represent ... uh, depends on emulator.
Mesen implements %1000 to mean "four screen" and %1001 to mean runtime-selectable 1-screen.
FCEUX ... implements the opposite.
Joy.
is static bank still #7 or just the last one? In other words, should I add bank declaration of other banks before or after this section?
It is just the last one. (This is always true in mapper 2. In 64 KiB UNROM, there are four banks, and bank 3 is the last one. In 256 KiB UOROM, there are sixteen banks, and bank 15 is the last one. So yes, you need to add bank declarations for the subsequent ones.