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mm/Lua/count flags.lua

34 lines
839 B
Lua
Executable file

require "addrs.init"
-- precalculate hamming weights of bytes
hamming_weight = {}
for i = 0, 255 do
local w = 0
for b = 0, 7 do
w = w + bit.band(bit.rshift(i, b), 1)
end
hamming_weight[i] = w
end
function hamming_of(addr, size)
weight = 0
bytes = mainmemory.readbyterange(addr, size)
for k,v in pairs(bytes) do
if v ~= 0 then
weight = weight + hamming_weight[tonumber(v, 16)]
end
end
return weight
end
print("###")
local current = 0
for i = 1, 5 do
local addr = addrs['current_scene_flags_'..tostring(i)].addr
current = current + hamming_of(addr, 4)
end
local ingame = hamming_of(addrs.scene_flags_ingame.addr, 0x960)
local save = hamming_of(addrs.scene_flags_save.addr, 0x960)
print("current", current)
print("ingame ", ingame)
print("save ", save)