動動腦 II: 國中英文(一), also known as Middle School English II, is commonly available as a Mapper 3 hack. The original Sachen 3014 board is somewhat more involved: The 8 KiB CHR-ROM bank is (apparently) selected by D4 rather than D0 of the CHR-ROM latch. That is nothing special, but the game repeatedly reads $E000 and expects D0-3 to resemble what was previously written to the latch in D4-7, most likely as a simple protection measure. Oddly enough, the game reads $E000 ten times if the value doesn't match what it expects before giving up and resetting.
I want to assign NES 2.0 Mapper 533 for this, but wanted to ask whether based on these images, there is something else to consider other than what I described.
Cartridge and pictures by MLX.
I want to assign NES 2.0 Mapper 533 for this, but wanted to ask whether based on these images, there is something else to consider other than what I described.
Cartridge and pictures by MLX.
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