mirror of
https://github.com/holub/mame
synced 2025-06-04 03:46:29 +03:00
plugins/cheatfind: change match behavior and add on screen watches (nw)
This commit is contained in:
cracyc
parent
df6026a69e
commit
0ed4ecb7c9
@ -12,6 +12,7 @@ local cheatfind = exports
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function cheatfind.startplugin()
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local cheat = {}
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local watches = {}
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-- return table of devices and spaces
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function cheat.getspaces()
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@ -60,109 +61,52 @@ function cheatfind.startplugin()
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return data
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end
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-- compare two data blocks
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function cheat.comp(olddata, newdata, oper, val, signed, width, endian)
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-- compare two data blocks, format is as lua string.unpack
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function cheat.comp(olddata, newdata, oper, format, val, bcd)
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local ret = {}
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local ref = {} -- this is a helper for comparing two match lists
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local format = ""
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local size = olddata.size
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if endian == 1 then
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format = format .. ">"
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else
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format = format .. "<"
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end
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if width == 16 then
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size = size & 0xfffe
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if signed == 1 then
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format = format .. "h"
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else
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format = format .. "H"
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end
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elseif width == 32 then
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size = size & 0xfffc
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if signed == 1 then
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format = format .. "l"
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else
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format = format .. "L"
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end
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elseif width == 64 then
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size = size & 0xfff8
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if signed == 1 then
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format = format .. "j"
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else
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format = format .. "J"
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end
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else
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if signed == 1 then
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format = format .. "b"
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else
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format = format .. "B"
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end
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local cfoper = {
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lt = function(a, b, val) return (a < b and val == 0) or (val > 0 and (a + val) == b) end,
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gt = function(a, b, val) return (a > b and val == 0) or (val > 0 and (a - val) == b) end,
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eq = function(a, b, val) return a == b end,
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ne = function(a, b, val) return (a ~= b and val == 0) or
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(val > 0 and ((a - val) == b or (a + val) == b)) end }
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local function check_bcd(val)
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local a = val + 0x0666666666666666
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a = a ~ val
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return (a & 0x1111111111111110) == 0
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end
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if olddata.start ~= newdata.start or olddata.size ~= newdata.size then
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local function frombcd(val)
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local result = 0
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local mul = 1
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while val ~= 0 do
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result = result + ((val % 16) * mul)
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val = val >> 4
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mul = mul * 10
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end
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return result
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end
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if olddata.start ~= newdata.start or olddata.size ~= newdata.size or not cfoper[oper] then
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return {}
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end
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if not val then
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val = 0
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end
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if oper == "+" or oper == "inc" or oper == "<" or oper == "lt" then
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for i = 1, size do
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local old = string.unpack(format, olddata.block, i)
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local new = string.unpack(format, newdata.block, i)
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if old < new then
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if (val > 0 and (old + val) == new) or val == 0 then
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ret[#ret + 1] = { addr = olddata.start + i - 1,
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oldval = old,
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newval = new}
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ref[ret[#ret].addr] = #ret
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end
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for i = 1, olddata.size do
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local old = string.unpack(format, olddata.block, i)
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local new = string.unpack(format, newdata.block, i)
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local oldc, newc = old, new
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local comp = false
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if not bcd or (check_bcd(old) and check_bcd(new)) then
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if bcd then
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oldc = frombcd(old)
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newc = frombcd(new)
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end
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end
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elseif oper == "-" or oper == "dec" or oper == ">" or oper == "gt" then
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for i = 1, size do
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local old = string.unpack(format, olddata.block, i)
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local new = string.unpack(format, newdata.block, i)
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if old > new then
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if (val > 0 and (old - val) == new) or val == 0 then
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ret[#ret + 1] = { addr = olddata.start + i - 1,
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oldval = old,
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newval = new}
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ref[ret[#ret].addr] = #ret
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end
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end
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end
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elseif oper == "=" or oper == "eq" then
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for i = 1, size do
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local old = string.unpack(format, olddata.block, i)
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local new = string.unpack(format, newdata.block, i)
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if old == new then
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ret[#ret + 1] = { addr = olddata.start + i - 1,
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oldval = old,
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newval = new}
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ref[ret[#ret].addr] = #ret
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end
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end
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elseif oper == "!" or oper == "ne" then
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for i = 1, size do
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local old = string.unpack(format, olddata.block, i)
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local new = string.unpack(format, newdata.block, i)
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if old ~= new then
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ret[#ret + 1] = { addr = olddata.start + i - 1,
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oldval = old,
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newval = new}
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ref[ret[#ret].addr] = #ret
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end
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end
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elseif oper == "^" or oper == "xor" then
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if val >= width then
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return {}
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end
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for i = 1, size do
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local old = string.unpack(format, olddata.block, i)
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local new = string.unpack(format, newdata.block, i)
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if ((old ~ new) & (1 << val)) ~= 0 then
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if cfoper[oper](oldc, newc, val) then
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ret[#ret + 1] = { addr = olddata.start + i - 1,
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oldval = old,
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newval = new}
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@ -173,22 +117,20 @@ function cheatfind.startplugin()
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return ret, ref
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end
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-- compare successive pairs of blocks from a table returning only addresses that match every comparison
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function cheat.compall(dattable, oper, val, signed, width, endian)
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if #dattable < 2 then
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return {}
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end
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local matches, refs = cheat.comp(dattable[1], dattable[2], oper, val, signed, width, endian)
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-- compare two blocks and filter by table of previous matches
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function cheat.compnext(olddata, newdata, oldmatch, oper, format, val, bcd)
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local matches, refs = cheat.comp(olddata, newdata, oper, format, val, bcd)
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local nonmatch = {}
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for i = 2, #dattable - 1 do
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local matchnext, refsnext = cheat.comp(dattable[i], dattable[i+1], oper, val, signed, width, endian)
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for addr, ref in pairs(refs) do
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if not refsnext[addr] then
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nonmatch[ref] = true
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refs[addr] = nil
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else
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matches[ref].newval = matchnext[refsnext[addr]].newval
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end
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local oldrefs = {}
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for num, match in pairs(oldmatch) do
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oldrefs[match.addr] = num
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end
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for addr, ref in pairs(refs) do
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if not oldrefs[addr] then
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nonmatch[ref] = true
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refs[addr] = nil
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else
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matches[ref].oldval = oldmatch[oldrefs[addr]].oldval
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end
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end
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local resort = {}
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@ -202,40 +144,46 @@ function cheatfind.startplugin()
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-- compare a data block to the current state
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function cheat.compcur(olddata, oper, val, signed, width, endian)
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function cheat.compcur(olddata, oper, format, val, bcd)
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local newdata = cheat.save(olddata.space, olddata.start, olddata.size, olddata.space)
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return cheat.comp(olddata, newdata, oper, val, signed, width, endian)
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return cheat.comp(olddata, newdata, oper, format, val, bcd)
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end
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-- compare a data block to the current state and filter
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function cheat.compcurnext(olddata, oldmatch, oper, format, val, bcd)
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local newdata = cheat.save(olddata.space, olddata.start, olddata.size, olddata.space)
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return cheat.compnext(olddata, newdata, oldmatch, oper, format, val, bcd)
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end
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_G.cf = cheat
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local devtable = {}
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local devsel = 1
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local devcur = 1
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local bitwidth = 3
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local signed = 0
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local endian = 0
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local optable = { "<", ">", "=", "!", "^" }
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local formtable = { "<B", ">B", "<b", ">b", "<H", ">H", "<h", ">h", "<L", ">L", "<l", ">l", "<J", ">J", "<j", ">j" }
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local formname = { "little u8", "big u8", "little s8", "big s8", "little u16", "big u16", "little s16", "big s16",
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"little u32", "big u32", "little s32", "big s32", "little u64", "big u64", "little s64", "big s64" }
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local width = 1
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local bcd = 0
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local optable = { "lt", "gt", "eq", "ne" }
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local opsel = 1
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local bit = 0
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local value = 0
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local leftop = 1
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local rightop = 0
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local matches = {}
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local matchsel = 1
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local menu_blocks = {}
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local midx = { region = 1, init = 2, save = 3, width = 5, signed = 6, endian = 7, op = 8, val = 9,
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lop = 10, rop = 11, comp = 12, match = 14 }
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local midx = { region = 1, init = 2, undo = 3, save = 4, lop = 6, op = 7, rop = 8, val = 9,
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width = 11, bcd = 12, comp = 13, match = 15, watch = 0 }
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local function start()
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devtable = {}
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devsel = 1
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devcur = 1
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bitwidth = 3
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signed = 0
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endian = 0
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width = 1
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bcd = 0
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opsel = 1
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bit = 0
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value = 0
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leftop = 1
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rightop = 1
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@ -284,63 +232,56 @@ function cheatfind.startplugin()
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else
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menu_lim(devsel, 1, #devtable, menu[midx.region])
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end
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menu[midx.init] = { "Init", "", 0 }
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menu[midx.init] = { "Start new search", "", 0 }
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if #menu_blocks ~= 0 then
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menu[midx.save] = { "Save current", "", 0 }
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menu[midx.undo] = { "Undo last search -- #" .. #matches, "", 0 }
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menu[midx.save] = { "Save current -- #" .. #menu_blocks[1] + 1, "", 0 }
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menu[midx.save + 1] = { "---", "", "off" }
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menu[midx.width] = { "Bit Width", 1 << bitwidth , 0 }
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menu_lim(bitwidth, 3, 6, menu[midx.width])
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menu[midx.signed] = { "Signed", "false", 0 }
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menu_lim(signed, 0, 1, menu[midx.signed])
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if signed == 1 then
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menu[midx.signed][2] = "true"
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end
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menu[midx.endian] = { "Endian", "little", 0 }
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menu_lim(endian, 0, 1, menu[midx.endian])
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if endian == 1 then
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menu[midx.endian][2] = "big"
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end
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menu[midx.op] = { "Operator", optable[opsel], "" }
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menu_lim(opsel, 1, #optable, menu[midx.op])
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if optable[opsel] == "^" then
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menu[midx.val] = { "Bit", bit, "" }
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menu_lim(bit, 0, (1 << bitwidth), menu[midx.val])
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else
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menu[midx.val] = { "Value", value, "" }
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menu_lim(value, 0, 100, menu[midx.val]) -- max value?
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if value == 0 then
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menu[midx.val][2] = "Any"
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end
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end
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menu[midx.lop] = { "Left operand", leftop, "" }
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menu_lim(leftop, 1, #menu_blocks[1] + 1, menu[midx.lop])
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if leftop == #menu_blocks[1] + 1 then
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menu[midx.lop][2] = "All"
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end
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menu[midx.op] = { "Operator", optable[opsel], "" }
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menu_lim(opsel, 1, #optable, menu[midx.op])
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menu[midx.rop] = { "Right operand", rightop, "" }
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menu_lim(rightop, 1, #menu_blocks[1] + 1, menu[midx.rop])
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if rightop == #menu_blocks[1] + 1 then
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menu[midx.rop][2] = "Current"
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end
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menu[midx.val] = { "Value", value, "" }
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menu_lim(value, 0, 100, menu[midx.val]) -- max value?
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if value == 0 then
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menu[midx.val][2] = "Any"
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end
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menu[midx.val + 1] = { "---", "", "off" }
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menu[midx.width] = { "Data Format", formname[width], 0 }
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menu_lim(width, 1, #formtable, menu[midx.width])
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menu[midx.bcd] = { "BCD", "Off", 0 }
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menu_lim(bcd, 0, 1, menu[midx.bcd])
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if bcd == 1 then
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menu[midx.bcd][2] = "On"
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end
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menu[midx.comp] = { "Compare", "", 0 }
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if #matches ~= 0 then
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menu[midx.comp + 1] = { "---", "", "off" }
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menu[midx.match] = { "Match block", matchsel, "" }
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if #matches == 1 then
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if #matches[#matches] == 1 then
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menu[midx.match][3] = 0
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else
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menu_lim(matchsel, 1, #matches, menu[midx.match])
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menu_lim(matchsel, 1, #matches[#matches], menu[midx.match])
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end
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for num2, match in ipairs(matches[matchsel]) do
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for num2, match in ipairs(matches[#matches][matchsel]) do
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if #menu > 50 then
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break
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end
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local numform = ""
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if bitwidth == 4 then
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local bitwidth = formtable[width]:sub(2, 2):lower()
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if bitwidth == "h" then
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numform = " %04x"
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elseif bitwidth == 5 then
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elseif bitwidth == "l" then
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numform = " %08x"
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elseif bitwidth == 6 then
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elseif bitwidth == "j" then
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numform = " %016x"
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else
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numform = " %02x"
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@ -352,12 +293,18 @@ function cheatfind.startplugin()
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end
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if match.mode == 1 then
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menu[#menu][2] = "Test"
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else
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elseif match.mode == 2 then
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menu[#menu][2] = "Write"
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else
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menu[#menu][2] = "Watch"
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end
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menu_lim(match.mode, 1, 2, menu[#menu])
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menu_lim(match.mode, 1, 3, menu[#menu])
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end
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end
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if #watches ~= 0 then
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menu[#menu + 1] = { "Clear Watches", "", 0 }
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midx.watch = #menu
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end
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end
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return menu
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end
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@ -378,7 +325,7 @@ function cheatfind.startplugin()
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if index == midx.region then
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if (event == "left" or event == "right") and #menu_blocks ~= 0 then
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manager:machine():popmessage("Changes to this only take effect when Init is selected")
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manager:machine():popmessage("Changes to this only take effect when \"Start new search\" is selected")
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end
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devsel = incdec(devsel, 1, #devtable)
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return true
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@ -391,9 +338,17 @@ function cheatfind.startplugin()
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menu_blocks[num][1] = cheat.save(devtable[devcur].space, region.offset, region.size)
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end
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manager:machine():popmessage("Data cleared and current state saved")
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watches = {}
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leftop = 1
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rightop = 2
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ret = true
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end
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devcur = devsel
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elseif index == midx.undo then
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if event == "select" and #matches > 0 then
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matches[#matches] = nil
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end
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ret = true
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elseif index == midx.save then
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if event == "select" then
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for num, region in ipairs(devtable[devcur].ram) do
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@ -402,80 +357,85 @@ function cheatfind.startplugin()
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manager:machine():popmessage("Current state saved")
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ret = true
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end
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elseif index == midx.width then
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bitwidth = incdec(bitwidth, 3, 6)
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if event == "left" or event == "right" then
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bit = 0
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end
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elseif index == midx.signed then
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signed = incdec(signed, 0, 1)
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elseif index == midx.endian then
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endian = incdec(endian, 0, 1)
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elseif index == midx.op then
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opsel = incdec(opsel, 1, #optable)
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if event == "left" or event == "right" or event == "comment" then
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if optable[opsel] == "<" then
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if optable[opsel] == "lt" then
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manager:machine():popmessage("Left less than right, value is difference")
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elseif optable[opsel] == ">" then
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elseif optable[opsel] == "gt" then
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manager:machine():popmessage("Left greater than right, value is difference")
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elseif optable[opsel] == "=" then
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elseif optable[opsel] == "eq" then
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manager:machine():popmessage("Left equal to right, value is ignored")
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elseif optable[opsel] == "!" then
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manager:machine():popmessage("Left not equal to right, value is ignored")
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elseif optable[opsel] == "^" then
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manager:machine():popmessage("Left bit different than right")
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elseif optable[opsel] == "ne" then
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manager:machine():popmessage("Left not equal to right, value is difference")
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end
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end
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opsel = incdec(opsel, 1, #optable)
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elseif index == midx.val then
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if optable[opsel] == "^" then
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bit = incdec(bit, 0, (1 << bitwidth))
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else
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value = incdec(value, 0, 100)
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end
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value = incdec(value, 0, 100)
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elseif index == midx.lop then
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leftop = incdec(leftop, 1, #menu_blocks[1] + 1)
|
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if (event == "left" or event == "right" or event == "comment") and leftop == #menu_blocks[1] + 1 then
|
||||
manager:machine():popmessage("Any compares every saved data pair and returns only matches that are true for all. Right operand is ignored.")
|
||||
end
|
||||
leftop = incdec(leftop, 1, #menu_blocks[1])
|
||||
elseif index == midx.rop then
|
||||
rightop = incdec(rightop, 1, #menu_blocks[1] + 1)
|
||||
elseif index == midx.width then
|
||||
width = incdec(width, 1, #formtable)
|
||||
elseif index == midx.bcd then
|
||||
bcd = incdec(bcd, 0, 1)
|
||||
elseif index == midx.comp then
|
||||
if event == "select" then
|
||||
matches = {}
|
||||
local val
|
||||
if optable[opsel] == "^" then
|
||||
val = bit
|
||||
else
|
||||
val = value
|
||||
end
|
||||
for num = 1, #menu_blocks do
|
||||
if leftop == #menu_blocks[1] + 1 then
|
||||
matches[#matches + 1] = cheat.compall(menu_blocks[num], optable[opsel], val, signed,
|
||||
1 << bitwidth, endian)
|
||||
elseif rightop == #menu_blocks[1] + 1 then
|
||||
matches[#matches + 1] = cheat.compcur(menu_blocks[num][leftop], optable[opsel], val,
|
||||
signed, 1 << bitwidth, endian)
|
||||
if #matches == 0 then
|
||||
matches[1] = {}
|
||||
if rightop == #menu_blocks[1] + 1 then
|
||||
matches[1][num] = cheat.compcur(menu_blocks[num][leftop], optable[opsel],
|
||||
formtable[width], value, bcd == 1)
|
||||
else
|
||||
matches[1][num] = cheat.comp(menu_blocks[num][leftop], menu_blocks[num][rightop],
|
||||
optable[opsel], formtable[width], value, bcd == 1)
|
||||
end
|
||||
else
|
||||
matches[#matches + 1] = cheat.comp(menu_blocks[num][leftop], menu_blocks[num][rightop],
|
||||
optable[opsel], val, signed, 1 << bitwidth, endian)
|
||||
lastmatch = matches[#matches]
|
||||
matches[#matches + 1] = {}
|
||||
if rightop == #menu_blocks[1] + 1 then
|
||||
matches[#matches][num] = cheat.compcurnext(menu_blocks[num][leftop], lastmatch[num],
|
||||
optable[opsel], formtable[width], value, bcd == 1)
|
||||
else
|
||||
matches[#matches][num] = cheat.compnext(menu_blocks[num][leftop], menu_blocks[num][rightop],
|
||||
lastmatch[num], optable[opsel], formtable[width], value, bcd == 1)
|
||||
end
|
||||
end
|
||||
|
||||
|
||||
end
|
||||
ret = true
|
||||
end
|
||||
elseif index == midx.match then
|
||||
matchsel = incdec(matchsel, 0, #matches)
|
||||
matchsel = incdec(matchsel, 0, #matches[#matches])
|
||||
elseif index == midx.watch then
|
||||
watches = {}
|
||||
ret = true
|
||||
elseif index > midx.match then
|
||||
local match = matches[matchsel][index - midx.match]
|
||||
match.mode = incdec(match.mode, 1, 2)
|
||||
local match = matches[#matches][matchsel][index - midx.match]
|
||||
match.mode = incdec(match.mode, 1, 3)
|
||||
if event == "select" then
|
||||
local dev = devtable[devcur]
|
||||
local cheat = { desc = string.format("Test cheat at addr %08x", match.addr), script = {} }
|
||||
local wid = formtable[width]:sub(2, 2):lower()
|
||||
if wid == "h" then
|
||||
wid = "u16"
|
||||
elseif wid == "l" then
|
||||
wid = "u32"
|
||||
elseif wid == "j" then
|
||||
wid = "u64"
|
||||
else
|
||||
wid = "u8"
|
||||
end
|
||||
|
||||
if dev.space.shortname then
|
||||
cheat.ram = dev.tag
|
||||
cheat.script.on = "ram:write(" .. match.addr .. "," .. match.newval .. ")"
|
||||
else
|
||||
cheat.space = { cpu = { tag = dev.tag, type = "program" } }
|
||||
cheat.script.on = "cpu:write_u8(" .. match.addr .. "," .. match.newval .. ")"
|
||||
cheat.script.on = "cpu:write_" .. wid .. "(" .. match.addr .. "," .. match.newval .. ")"
|
||||
end
|
||||
if match.mode == 1 then
|
||||
if not _G.ce then
|
||||
@ -483,13 +443,21 @@ function cheatfind.startplugin()
|
||||
else
|
||||
_G.ce.inject(cheat)
|
||||
end
|
||||
else
|
||||
elseif match.mode == 2 then
|
||||
local filename = string.format("%s_%08x_cheat.json", emu.romname(), match.addr)
|
||||
local json = require("json")
|
||||
local file = io.open(filename, "w")
|
||||
file:write(json.stringify(cheat))
|
||||
file:close()
|
||||
manager:machine():popmessage("Cheat written to " .. filename)
|
||||
else
|
||||
local func = "return space:read"
|
||||
local env = { space = devtable[devcur].space, read = devtable[devcur].space.read }
|
||||
if not dev.space.shortname then
|
||||
func = func .. "_" .. wid
|
||||
end
|
||||
func = func .. "(" .. match.addr .. ")"
|
||||
watches[#watches + 1] = { addr = match.addr, func = load(func, func, "t", env) }
|
||||
end
|
||||
end
|
||||
end
|
||||
@ -497,6 +465,13 @@ function cheatfind.startplugin()
|
||||
return ret
|
||||
end
|
||||
emu.register_menu(menu_callback, menu_populate, "Cheat Finder")
|
||||
emu.register_frame_done(function ()
|
||||
local tag, screen = next(manager:machine().screens)
|
||||
local height = manager:machine():ui():get_line_height()
|
||||
for num, watch in ipairs(watches) do
|
||||
screen:draw_text("left", num * height, string.format("%08x %08x", watch.addr, watch.func()))
|
||||
end
|
||||
end)
|
||||
end
|
||||
|
||||
return exports
|
||||
|
||||
Loading…
Reference in New Issue
Block a user