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author cracyc <cracyc@users.noreply.github.com>2016-04-21 18:55:13 -0500
committer cracyc <cracyc@users.noreply.github.com>2016-04-21 18:55:13 -0500
commit0ed4ecb7c9cbcc6d8aa8b6daf73a84d41247c82f (patch)
tree365f00627b8c5c4cba5d1e021d5e2b51e028e8ef
parentdf6026a69e76f157fa1a6167feb5e229a0a094d1 (diff)
plugins/cheatfind: change match behavior and add on screen watches (nw)
-rw-r--r--plugins/cheatfind/init.lua375
1 files changed, 175 insertions, 200 deletions
diff --git a/plugins/cheatfind/init.lua b/plugins/cheatfind/init.lua
index 69fd9346800..bde62f97e81 100644
--- a/plugins/cheatfind/init.lua
+++ b/plugins/cheatfind/init.lua
@@ -12,6 +12,7 @@ local cheatfind = exports
function cheatfind.startplugin()
local cheat = {}
+ local watches = {}
-- return table of devices and spaces
function cheat.getspaces()
@@ -60,109 +61,52 @@ function cheatfind.startplugin()
return data
end
- -- compare two data blocks
- function cheat.comp(olddata, newdata, oper, val, signed, width, endian)
+ -- compare two data blocks, format is as lua string.unpack
+ function cheat.comp(olddata, newdata, oper, format, val, bcd)
local ret = {}
local ref = {} -- this is a helper for comparing two match lists
- local format = ""
- local size = olddata.size
- if endian == 1 then
- format = format .. ">"
- else
- format = format .. "<"
+ local cfoper = {
+ lt = function(a, b, val) return (a < b and val == 0) or (val > 0 and (a + val) == b) end,
+ gt = function(a, b, val) return (a > b and val == 0) or (val > 0 and (a - val) == b) end,
+ eq = function(a, b, val) return a == b end,
+ ne = function(a, b, val) return (a ~= b and val == 0) or
+ (val > 0 and ((a - val) == b or (a + val) == b)) end }
+
+ local function check_bcd(val)
+ local a = val + 0x0666666666666666
+ a = a ~ val
+ return (a & 0x1111111111111110) == 0
end
- if width == 16 then
- size = size & 0xfffe
- if signed == 1 then
- format = format .. "h"
- else
- format = format .. "H"
- end
- elseif width == 32 then
- size = size & 0xfffc
- if signed == 1 then
- format = format .. "l"
- else
- format = format .. "L"
- end
- elseif width == 64 then
- size = size & 0xfff8
- if signed == 1 then
- format = format .. "j"
- else
- format = format .. "J"
- end
- else
- if signed == 1 then
- format = format .. "b"
- else
- format = format .. "B"
- end
+
+ local function frombcd(val)
+ local result = 0
+ local mul = 1
+ while val ~= 0 do
+ result = result + ((val % 16) * mul)
+ val = val >> 4
+ mul = mul * 10
+ end
+ return result
end
- if olddata.start ~= newdata.start or olddata.size ~= newdata.size then
+ if olddata.start ~= newdata.start or olddata.size ~= newdata.size or not cfoper[oper] then
return {}
end
if not val then
val = 0
end
- if oper == "+" or oper == "inc" or oper == "<" or oper == "lt" then
- for i = 1, size do
- local old = string.unpack(format, olddata.block, i)
- local new = string.unpack(format, newdata.block, i)
- if old < new then
- if (val > 0 and (old + val) == new) or val == 0 then
- ret[#ret + 1] = { addr = olddata.start + i - 1,
- oldval = old,
- newval = new}
- ref[ret[#ret].addr] = #ret
- end
+ for i = 1, olddata.size do
+ local old = string.unpack(format, olddata.block, i)
+ local new = string.unpack(format, newdata.block, i)
+ local oldc, newc = old, new
+ local comp = false
+ if not bcd or (check_bcd(old) and check_bcd(new)) then
+ if bcd then
+ oldc = frombcd(old)
+ newc = frombcd(new)
end
- end
- elseif oper == "-" or oper == "dec" or oper == ">" or oper == "gt" then
- for i = 1, size do
- local old = string.unpack(format, olddata.block, i)
- local new = string.unpack(format, newdata.block, i)
- if old > new then
- if (val > 0 and (old - val) == new) or val == 0 then
- ret[#ret + 1] = { addr = olddata.start + i - 1,
- oldval = old,
- newval = new}
- ref[ret[#ret].addr] = #ret
- end
- end
- end
- elseif oper == "=" or oper == "eq" then
- for i = 1, size do
- local old = string.unpack(format, olddata.block, i)
- local new = string.unpack(format, newdata.block, i)
- if old == new then
- ret[#ret + 1] = { addr = olddata.start + i - 1,
- oldval = old,
- newval = new}
- ref[ret[#ret].addr] = #ret
- end
- end
- elseif oper == "!" or oper == "ne" then
- for i = 1, size do
- local old = string.unpack(format, olddata.block, i)
- local new = string.unpack(format, newdata.block, i)
- if old ~= new then
- ret[#ret + 1] = { addr = olddata.start + i - 1,
- oldval = old,
- newval = new}
- ref[ret[#ret].addr] = #ret
- end
- end
- elseif oper == "^" or oper == "xor" then
- if val >= width then
- return {}
- end
- for i = 1, size do
- local old = string.unpack(format, olddata.block, i)
- local new = string.unpack(format, newdata.block, i)
- if ((old ~ new) & (1 << val)) ~= 0 then
+ if cfoper[oper](oldc, newc, val) then
ret[#ret + 1] = { addr = olddata.start + i - 1,
oldval = old,
newval = new}
@@ -173,22 +117,20 @@ function cheatfind.startplugin()
return ret, ref
end
- -- compare successive pairs of blocks from a table returning only addresses that match every comparison
- function cheat.compall(dattable, oper, val, signed, width, endian)
- if #dattable < 2 then
- return {}
- end
- local matches, refs = cheat.comp(dattable[1], dattable[2], oper, val, signed, width, endian)
+ -- compare two blocks and filter by table of previous matches
+ function cheat.compnext(olddata, newdata, oldmatch, oper, format, val, bcd)
+ local matches, refs = cheat.comp(olddata, newdata, oper, format, val, bcd)
local nonmatch = {}
- for i = 2, #dattable - 1 do
- local matchnext, refsnext = cheat.comp(dattable[i], dattable[i+1], oper, val, signed, width, endian)
- for addr, ref in pairs(refs) do
- if not refsnext[addr] then
- nonmatch[ref] = true
- refs[addr] = nil
- else
- matches[ref].newval = matchnext[refsnext[addr]].newval
- end
+ local oldrefs = {}
+ for num, match in pairs(oldmatch) do
+ oldrefs[match.addr] = num
+ end
+ for addr, ref in pairs(refs) do
+ if not oldrefs[addr] then
+ nonmatch[ref] = true
+ refs[addr] = nil
+ else
+ matches[ref].oldval = oldmatch[oldrefs[addr]].oldval
end
end
local resort = {}
@@ -202,40 +144,46 @@ function cheatfind.startplugin()
-- compare a data block to the current state
- function cheat.compcur(olddata, oper, val, signed, width, endian)
+ function cheat.compcur(olddata, oper, format, val, bcd)
local newdata = cheat.save(olddata.space, olddata.start, olddata.size, olddata.space)
- return cheat.comp(olddata, newdata, oper, val, signed, width, endian)
+ return cheat.comp(olddata, newdata, oper, format, val, bcd)
end
+ -- compare a data block to the current state and filter
+ function cheat.compcurnext(olddata, oldmatch, oper, format, val, bcd)
+ local newdata = cheat.save(olddata.space, olddata.start, olddata.size, olddata.space)
+ return cheat.compnext(olddata, newdata, oldmatch, oper, format, val, bcd)
+ end
+
+
_G.cf = cheat
local devtable = {}
local devsel = 1
local devcur = 1
- local bitwidth = 3
- local signed = 0
- local endian = 0
- local optable = { "<", ">", "=", "!", "^" }
+ local formtable = { "<B", ">B", "<b", ">b", "<H", ">H", "<h", ">h", "<L", ">L", "<l", ">l", "<J", ">J", "<j", ">j" }
+ local formname = { "little u8", "big u8", "little s8", "big s8", "little u16", "big u16", "little s16", "big s16",
+ "little u32", "big u32", "little s32", "big s32", "little u64", "big u64", "little s64", "big s64" }
+ local width = 1
+ local bcd = 0
+ local optable = { "lt", "gt", "eq", "ne" }
local opsel = 1
- local bit = 0
local value = 0
local leftop = 1
local rightop = 0
local matches = {}
local matchsel = 1
local menu_blocks = {}
- local midx = { region = 1, init = 2, save = 3, width = 5, signed = 6, endian = 7, op = 8, val = 9,
- lop = 10, rop = 11, comp = 12, match = 14 }
+ local midx = { region = 1, init = 2, undo = 3, save = 4, lop = 6, op = 7, rop = 8, val = 9,
+ width = 11, bcd = 12, comp = 13, match = 15, watch = 0 }
local function start()
devtable = {}
devsel = 1
devcur = 1
- bitwidth = 3
- signed = 0
- endian = 0
+ width = 1
+ bcd = 0
opsel = 1
- bit = 0
value = 0
leftop = 1
rightop = 1
@@ -284,63 +232,56 @@ function cheatfind.startplugin()
else
menu_lim(devsel, 1, #devtable, menu[midx.region])
end
- menu[midx.init] = { "Init", "", 0 }
+ menu[midx.init] = { "Start new search", "", 0 }
if #menu_blocks ~= 0 then
- menu[midx.save] = { "Save current", "", 0 }
+ menu[midx.undo] = { "Undo last search -- #" .. #matches, "", 0 }
+ menu[midx.save] = { "Save current -- #" .. #menu_blocks[1] + 1, "", 0 }
menu[midx.save + 1] = { "---", "", "off" }
- menu[midx.width] = { "Bit Width", 1 << bitwidth , 0 }
- menu_lim(bitwidth, 3, 6, menu[midx.width])
- menu[midx.signed] = { "Signed", "false", 0 }
- menu_lim(signed, 0, 1, menu[midx.signed])
- if signed == 1 then
- menu[midx.signed][2] = "true"
- end
- menu[midx.endian] = { "Endian", "little", 0 }
- menu_lim(endian, 0, 1, menu[midx.endian])
- if endian == 1 then
- menu[midx.endian][2] = "big"
- end
- menu[midx.op] = { "Operator", optable[opsel], "" }
- menu_lim(opsel, 1, #optable, menu[midx.op])
- if optable[opsel] == "^" then
- menu[midx.val] = { "Bit", bit, "" }
- menu_lim(bit, 0, (1 << bitwidth), menu[midx.val])
- else
- menu[midx.val] = { "Value", value, "" }
- menu_lim(value, 0, 100, menu[midx.val]) -- max value?
- if value == 0 then
- menu[midx.val][2] = "Any"
- end
- end
menu[midx.lop] = { "Left operand", leftop, "" }
menu_lim(leftop, 1, #menu_blocks[1] + 1, menu[midx.lop])
if leftop == #menu_blocks[1] + 1 then
menu[midx.lop][2] = "All"
end
+ menu[midx.op] = { "Operator", optable[opsel], "" }
+ menu_lim(opsel, 1, #optable, menu[midx.op])
menu[midx.rop] = { "Right operand", rightop, "" }
menu_lim(rightop, 1, #menu_blocks[1] + 1, menu[midx.rop])
if rightop == #menu_blocks[1] + 1 then
menu[midx.rop][2] = "Current"
end
+ menu[midx.val] = { "Value", value, "" }
+ menu_lim(value, 0, 100, menu[midx.val]) -- max value?
+ if value == 0 then
+ menu[midx.val][2] = "Any"
+ end
+ menu[midx.val + 1] = { "---", "", "off" }
+ menu[midx.width] = { "Data Format", formname[width], 0 }
+ menu_lim(width, 1, #formtable, menu[midx.width])
+ menu[midx.bcd] = { "BCD", "Off", 0 }
+ menu_lim(bcd, 0, 1, menu[midx.bcd])
+ if bcd == 1 then
+ menu[midx.bcd][2] = "On"
+ end
menu[midx.comp] = { "Compare", "", 0 }
if #matches ~= 0 then
menu[midx.comp + 1] = { "---", "", "off" }
menu[midx.match] = { "Match block", matchsel, "" }
- if #matches == 1 then
+ if #matches[#matches] == 1 then
menu[midx.match][3] = 0
else
- menu_lim(matchsel, 1, #matches, menu[midx.match])
+ menu_lim(matchsel, 1, #matches[#matches], menu[midx.match])
end
- for num2, match in ipairs(matches[matchsel]) do
+ for num2, match in ipairs(matches[#matches][matchsel]) do
if #menu > 50 then
break
end
local numform = ""
- if bitwidth == 4 then
+ local bitwidth = formtable[width]:sub(2, 2):lower()
+ if bitwidth == "h" then
numform = " %04x"
- elseif bitwidth == 5 then
+ elseif bitwidth == "l" then
numform = " %08x"
- elseif bitwidth == 6 then
+ elseif bitwidth == "j" then
numform = " %016x"
else
numform = " %02x"
@@ -352,12 +293,18 @@ function cheatfind.startplugin()
end
if match.mode == 1 then
menu[#menu][2] = "Test"
- else
+ elseif match.mode == 2 then
menu[#menu][2] = "Write"
+ else
+ menu[#menu][2] = "Watch"
end
- menu_lim(match.mode, 1, 2, menu[#menu])
+ menu_lim(match.mode, 1, 3, menu[#menu])
end
end
+ if #watches ~= 0 then
+ menu[#menu + 1] = { "Clear Watches", "", 0 }
+ midx.watch = #menu
+ end
end
return menu
end
@@ -378,7 +325,7 @@ function cheatfind.startplugin()
if index == midx.region then
if (event == "left" or event == "right") and #menu_blocks ~= 0 then
- manager:machine():popmessage("Changes to this only take effect when Init is selected")
+ manager:machine():popmessage("Changes to this only take effect when \"Start new search\" is selected")
end
devsel = incdec(devsel, 1, #devtable)
return true
@@ -391,9 +338,17 @@ function cheatfind.startplugin()
menu_blocks[num][1] = cheat.save(devtable[devcur].space, region.offset, region.size)
end
manager:machine():popmessage("Data cleared and current state saved")
+ watches = {}
+ leftop = 1
+ rightop = 2
ret = true
end
devcur = devsel
+ elseif index == midx.undo then
+ if event == "select" and #matches > 0 then
+ matches[#matches] = nil
+ end
+ ret = true
elseif index == midx.save then
if event == "select" then
for num, region in ipairs(devtable[devcur].ram) do
@@ -402,80 +357,85 @@ function cheatfind.startplugin()
manager:machine():popmessage("Current state saved")
ret = true
end
- elseif index == midx.width then
- bitwidth = incdec(bitwidth, 3, 6)
- if event == "left" or event == "right" then
- bit = 0
- end
- elseif index == midx.signed then
- signed = incdec(signed, 0, 1)
- elseif index == midx.endian then
- endian = incdec(endian, 0, 1)
elseif index == midx.op then
+ opsel = incdec(opsel, 1, #optable)
if event == "left" or event == "right" or event == "comment" then
- if optable[opsel] == "<" then
+ if optable[opsel] == "lt" then
manager:machine():popmessage("Left less than right, value is difference")
- elseif optable[opsel] == ">" then
+ elseif optable[opsel] == "gt" then
manager:machine():popmessage("Left greater than right, value is difference")
- elseif optable[opsel] == "=" then
+ elseif optable[opsel] == "eq" then
manager:machine():popmessage("Left equal to right, value is ignored")
- elseif optable[opsel] == "!" then
- manager:machine():popmessage("Left not equal to right, value is ignored")
- elseif optable[opsel] == "^" then
- manager:machine():popmessage("Left bit different than right")
+ elseif optable[opsel] == "ne" then
+ manager:machine():popmessage("Left not equal to right, value is difference")
end
end
- opsel = incdec(opsel, 1, #optable)
elseif index == midx.val then
- if optable[opsel] == "^" then
- bit = incdec(bit, 0, (1 << bitwidth))
- else
- value = incdec(value, 0, 100)
- end
+ value = incdec(value, 0, 100)
elseif index == midx.lop then
- leftop = incdec(leftop, 1, #menu_blocks[1] + 1)
- 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