banktest.lua

local hexprint = function(str, val)
    print(string.format("%s: %04X", str, val))
end

local bank, poke = 0x2FFFC0, memory.readword(0x011A44)
hexprint("poke address", bank)
hexprint("poke value", poke)

hexprint("before write, byte 1", memory.readbyte(bank + 0))
hexprint("before write, byte 2", memory.readbyte(bank + 1))
hexprint("before write, word", memory.readword(bank))
memory.writeword(bank, poke)
hexprint("after write, word", memory.readword(bank))