memory.registerexec(0xC4D0, function()
FCEU.message( "Acquired item " .. memory.getregister("A") )
end)CPU=setmetatable({}, {__index=function(t,k) return memory.getregister(k) end })
memory.registerexec(0xC4D0, function()
FCEU.message( "Acquired item " .. CPU.A )
end)
local a=savestate.create(1)
savestate.load(a)fceu/fcx2 --loadlua test.lua game.nesu={[0]=1,4,5,2,4,3}
print(#u)
local u = {1, 2, [42]=3, 4}
print(#u) -- => 3
function getLen(tbl)
local len = 0
for i in pairs(u) do len = len + 1; end
return len
end
pi ={[0]
=1,4,1,5,9,2,6,5,3,5,8,9,7,9,3,2,3,8,4,6,2,6,4,3,3,8,3,2,7,9,5,0,2,8,8,4,1,9,
7,1,6,9,3,9,9,3,7,5,1,0,5,8,2,0,9,7,4,9,4,4,5,9,2,3,0,7,8,1,6,4,0,6,2,8,6,2,0,
8,9,9,8,6,2,8,0,3,4,8,2,5,3,4,2,1,1,7,0,6,7,9,8,2,1,4,8,0,8,6,5,1,3,2,8,2,3,0,
6,6,4,7,0,9,3,8,4,4,6,0,9,5,5,0,5,8,2,2,3,1,7,2,5,3,5,9,4,0,8,1,2,8,4,8,1,1,1,
7,4,5,0,2,8,4,1,0,2,7,0,1,9,3,8,5,2,1,1,0,5,5,5,9,6,4,4,6,2,2,9,4,8,9,5,4,9,3,
0,3,8,1,9,6,4,4,2,8,8,1,0,9,7,5,6,6,5,9,3,3,4,4,6,1,2,8,4,7,5,6,4,8,2,3,3,7,8,
6,7,8,3,1,6,5,2,7,1,2,0,1,9,0,9,1,4,5,6,4,8,5,6,6,9,2,3,4,6,0,3,4,8,6,1,0,4,5,
4,3,2,6,6,4,8,2,1,3,3,9,3,6,0,7,2,6,0,2,4,9,1,4,1,2,7,3,7,2,4,5,8,7,0,0,6,6,0,
6,3,1,5,5,8,8,1,7,4,8,8,1,5,2,0,9,2,0,9,6,2,8,2,9,2,5,4,0,9,1,7,1,5,3,6,4,3,6,
7,8,9,2,5,9,0,3,6,0,0,1,1,3,3,0,5,3,0,5,4,8,8,2,0,4,6,6}
m=pi
n=0
length=12
c=length
d="3."
while n<=#m do
key1={}
key2={}
u=m[n]
if c==0 then n=n+1 c=length d= d .. u end
c=c-1
if u==1 then key1.A=1 end
if u==2 then key1.B=1 end
if u==3 then key1.start=1 end
if u==4 then key1.select=1 end
if u==5 then key1.left=1 end
if u==6 then key1.up=1 end
if u==7 then key1.right=1 end
if u==8 then key1.down=1 end
if u==9 then key2.A=1 end
if u==0 then key2.B=1 end
joypad.set(1,key1)
joypad.set(2,key2)
gui.text(10,18,"Tone length: " .. length)
gui.text(10,26,"Number: " .. d)
FCEU.frameadvance()
endMany of my bots on FCEU have breakpoint handlers such that if the CPU happens to execute e.g. ROM location A56C, the value of the CPU register A can be captured into a variable, and used by the bot. This can be used to determine various things, from success in performing a glitch, to identifying an item that was just picked up. Now, how do I do that in FCEUX and LUA? (I've presented this question years ago and it was without a solution back then, but I imagine emulator technology has improved by heaps since then!) EDIT: It indeed has! Congratulations to all programmers. So, replying to myself for others' benefit:memory.registerexec(0xC4D0, function() FCEU.message( "Acquired item " .. memory.getregister("A") ) end)
This looks like a bug in sdl/input.cpp. g_config->getOption("SDL.Hotkeys.Pause", &bindStateKey); Should be: g_config->getOption("SDL.Hotkeys.BindState", &bindStateKey); ---- Here's my script.And here's how I start it:local a=savestate.create(1) savestate.load(a)And fceux crashes. What am I doing wrong? Shouldn't the ensureLoad() method of LuaSaveState in lua-engine.cpp be called at some point? ---- fceulua.h defines FCEU_LuaFrameskip() yet in lua-engine.cpp it is FCEU_LuaFrameSkip(). Neither of which have any meaning -- they're never used anywhere. And hence, choosing the speedmode "maximum" has no effect!fceu/fcx2 --loadlua test.lua game.nes
while (true) do
if (FCEU.lagged()) then
FCEU.speedmode("turbo");
gui.text(0, 0, "LAGGED!");
else
FCEU.speedmode("normal");
gui.text(0, 0, " ");
end;
FCEU.frameadvance();
end;Could you post your test.lua script?
local a=savestate.create(1)
savestate.load(a)
I have one guess as to why the else clause never executes: FCEU.lagged() returns false instead of nil on a lag frame. Try "if FCEU.lagged ~= false then" ...maybe?
Go with what Dromecious, Nil and false are indeed different values in lua.
local hotkeys= {}
local keys= input.get() --Should have an initial value
local lastkeys= keys
--*****************************************************************************
local function luahotkey(hotkey,func)
--*****************************************************************************
-- To act in place of input.registerhotkey where gui.register can run while
-- emulation is paused.
-- Returns whatever function that once occupied the specified hotkey.
local dumpedfunction= hotkeys[hotkey]
hotkeys[hotkey]= func
return dumpedfunction
end
--*****************************************************************************
local function scanhotkeys()
--*****************************************************************************
-- The actual function to process each registered key.
-- Use gui.register(scanhotkey) or something similar to let it work its magic.
lastkeys= keys
keys= input.get()
for key, junk in pairs(keys) do
if (hotkeys[key]) and (not lastkeys[key]) then
hotkeys[key]()
end
end
end
gui.register(scanhotkeys)
-- Junk code. Just to test the hotkey formula.
luahotkey("space",function() gui.text(1,1,"Space, the final frontier") end)
luahotkey("Z", function() gui.text(1,4,"That's a Z button.") end)
while true do
gui.pixel(0,0,"clear")
emu.frameadvance()
endwhile (movie is playing)
(commands)
end