ドクターマリオ (FC) 処理量表示luaスクリプト (FCEUX用)

profile.lua

local cycle_start = nil
local cycle_end   = nil

local function main()
    memory.registerexec(0xB65B, function()
        cycle_start = debugger.getcyclescount()
    end)
    memory.registerexec(0xB65E, function()
        cycle_end = debugger.getcyclescount()
    end)

    emu.registerbefore(function()
        cycle_start = nil
        cycle_end   = nil
    end)
    emu.registerafter(function()
        if cycle_start ~= nil and cycle_end ~= nil then
            local duration = cycle_end - cycle_start
            gui.text(8, 8, string.format("Sound: %d", duration))
        end
    end)
end

main()