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plugins/cheat: refactor and add more ar support (nw)

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This commit is contained in:
cracyc 2017-06-15 15:04:04 -05:00
parent 18c4a3735d
commit 74894fa5d2
1 changed files with 127 additions and 94 deletions
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221
plugins/cheat/cheat_simple.lua
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@ -1,13 +1,13 @@
-- converter for simple cheats
-- simple cheats are single address every frame ram or gg,ar cheats in one file called cheat.simple
-- simple cheats are single address every frame ram, rom or gg,ar cheats in one file called cheat.simple
--
-- ram cheat format: <set name>,<cputag>,<hex offset>,<b|w|d|q - size>,<hex value>,<desc>
-- ram/rom cheat format: <set name>,<cputag|regiontag>,<hex offset>,<b|w|d|q - size>,<hex value>,<desc>
-- only program address space is supported, comments are prepended with ;
-- size is b - u8, w - u16, d - u32, q - u64
--
-- gg,ar cheat format: <set name>,<gg|ar - type>,<code>,<desc> like "nes/smb,gg,SXIOPO,Infinite Lives"
-- gg for game genie -- nes, snes, megadriv, gamegear, gameboy
-- ar for action replay -- nes
-- ar for action replay -- nes, snes, megadriv, gamegear, sms
--
-- set name is <softlist>/<entry> like "nes/smb" for softlist items
-- Don't use commas in the description
@ -23,10 +23,43 @@ end
local codefuncs = {}
local function prepare_rom_cheat(desc, region, addr, val, size, banksize, comp)
local cheat = { desc = desc, region = { rom = region } }
cheat.script = { off = "if on then rom:write_u8(addr, save) end" }
if banksize and comp then
local rom = manager:machine():memory().regions[region]
local bankaddr = addr & (banksize - 1)
addr = nil
if not rom then
error("rom cheat invalid region " .. desc)
end
for i = 0, rom.size, banksize do
if rom:read_u8(i + bankaddr) == comp then
addr = i + bankaddr
break
end
end
if not addr then
error("rom cheat compare value not found " .. desc)
end
end
cheat.script.on = string.format([[
on = true
addr = %d
save = rom:read_u%d(addr)
rom:write_u8(addr, %d)]], addr, size, val)
return cheat
end
local function prepare_ram_cheat(desc, tag, addr, val, size)
local cheat = { desc = desc, space = { cpup = { tag = tag, type = "program" } } }
cheat.script = { run = "cpup:write_u" .. size .. "(" .. addr .. "," .. val .. ", true)" }
return cheat
end
function codefuncs.nes_gg(desc, code)
local xlate = { A = 0, P = 1, Z = 2, L = 3, G = 4, I = 5, T = 6, Y = 7, E = 8,
O = 9, X = 10, U = 11, K = 12, S = 13, V = 14, N = 15 }
local cheat = { desc = desc, region = { rom = ":nes_slot:cart:prg_rom" } }
local value = 0
code:upper():gsub("(.)", function(s)
if not xlate[s] then
@ -35,39 +68,22 @@ function codefuncs.nes_gg(desc, code)
value = (value << 4) | xlate[s]
end)
local addr, newval, comp
cheat.script = { off = "if on then rom:write_u8(addr, save) end" }
if #code == 6 then
addr = ((value >> 4) & 7) | ((value >> 8) & 0x78) | ((value >> 12) & 0x80) | ((value << 8) & 0x700) | ((value << 4) & 0x7800)
newval = ((value >> 20) & 7) | (value & 8) | ((value >> 12) & 0x70) | ((value >> 16) & 0x80)
cheat.script.on = string.format([[
on = true
addr = %d
save = rom:read_u8(addr)
rom:write_u8(addr, %d)]], addr, newval)
return prepare_rom_cheat(desc, ":nes_slot:cart:prg_rom", addr, newval, 8)
elseif #code == 8 then
addr = ((value >> 12) & 7) | ((value >> 16) & 0x78) | ((value >> 20) & 0x80) | (value & 0x700) | ((value >> 4) & 0x7800)
newval = ((value >> 28) & 7) | (value & 8) | ((value >> 20) & 0x70) | ((value >> 24) & 0x80)
comp = ((value >> 4) & 7) | ((value >> 8) & 8) | ((value << 4) & 0x70) | ((value << 1) & 0x80)
-- assume 8K banks, 32K also common but is an easy multiple of 8K
cheat.script.on = string.format([[
addr = %d
save = %d
for i = 0, rom.size, 8192 do
if rom:read_u8(i + addr) == save then
on = true
addr = i + addr
rom:write_u8(addr, %d)
break
end
end]], addr & 0x3fff, comp, newval)
return prepare_rom_cheat(desc, ":nes_slot:cart:prg_rom", addr, newval, 8, 8192, comp)
else
error("error game genie cheat incorrect length " .. desc)
end
return cheat
end
function codefuncs.nes_ar(desc, code)
local cheat = { desc = desc, space = { cpup = { tag = ":maincpu", type = "program" } } }
code = code:gsub("[: %-]", "")
if #code ~= 8 then
error("error action replay cheat incorrect length " .. desc)
@ -77,8 +93,39 @@ function codefuncs.nes_ar(desc, code)
if not newval or not addr then
error("error parsing action replay cheat " .. desc)
end
cheat.script = { run = "cpup:write_u8(" .. addr .. "," .. newval .. ", true)" }
return cheat
return prepare_ram_cheat(desc, ":maincpu", addr, newval, 8)
end
local function snes_prepare_cheat(desc, addr, val)
local bank = addr >> 16
local offset = addr & 0xffff
if ((bank <= 0x3f) and (offset < 0x2000)) or ((bank & 0xfe) == 0x7e) then
return prepare_ram_cheat(desc, ":maincpu", addr, val, 8)
end
if (manager:machine().devices[":maincpu"].spaces["program"]:read_u8(0xffd5) & 1) == 1 then --hirom
if (bank & 0x7f) <= 0x3f and offset >= 0x8000 then
-- direct map
elseif (bank & 0x7f) >= 0x40 and (bank & 0x7f) <= 0x7d then
addr = addr & 0x3fffff
elseif bank >= 0xfe then
addr = addr & 0x3fffff
else
error("error cheat not rom or ram addr " .. desc)
end
else --lorom
if (bank & 0x7f) <= 0x3f and offset >= 0x8000 then
addr = ((addr >> 1) & 0x3f8000) | (addr & 0x7fff)
elseif (bank & 0x7f) >= 0x40 and (bank & 0x7f) <= 0x6f then
addr = ((addr >> 1) & 0x3f8000) | (addr & 0x7fff)
elseif (bank & 0x7f) >= 0x70 and (bank & 0x7f) <= 0x7d and offset >= 0x8000 then
addr = ((addr >> 1) & 0x3f8000) | (addr & 0x7fff)
elseif bank >= 0xfe and offset >= 0x8000 then
addr = ((addr >> 1) & 0x3f8000) | (addr & 0x7fff)
else
error("error cheat not rom or ram addr " .. desc)
end
end
return prepare_rom_cheat(desc, ":snsslot:cart:rom", addr, val, 8)
end
function codefuncs.snes_gg(desc, code)
@ -86,8 +133,6 @@ function codefuncs.snes_gg(desc, code)
["6"] = 8, B = 9, C = 10, ["8"] = 11, A = 12, ["2"] = 13, ["3"] = 14, E = 15 }
local value = 0
local count = 0
local cheat = { desc = desc, region = { rom = ":snsslot:cart:rom" } }
cheat.script = { off = "if on then rom:write_u8(addr, save) end" }
code:upper():gsub("(.)", function(s)
if s == "-" then
return
@ -103,40 +148,20 @@ function codefuncs.snes_gg(desc, code)
local newval = (value >> 24) & 0xff
local addr = ((value >> 6) & 0xf) | ((value >> 12) & 0xf0) | ((value >> 6) & 0x300) | ((value << 10) & 0xc00) |
((value >> 8) & 0xf000) | ((value << 14) & 0xf0000) | ((value << 10) & 0xf00000)
if (manager:machine().devices[":maincpu"].spaces["program"]:read_u8(0xffd5) & 1) == 1 then --hirom
local bank = addr >> 16
local offset = addr & 0xffff
if (bank & 0x7f) <= 0x3f and offset >= 0x8000 then
-- direct map
elseif (bank & 0x7f) >= 0x40 and (bank & 0x7f) <= 0x7d then
addr = addr & 0x3fffff
elseif bank >= 0xfe then
addr = addr & 0x3fffff
else
error("error game genie cheat not rom addr " .. desc)
end
else --lorom
local bank = addr >> 16
local offset = addr & 0xffff
if (bank & 0x7f) <= 0x3f and offset >= 0x8000 then
addr = ((addr >> 1) & 0x78000) | (addr & 0x7fff)
elseif (bank & 0x7f) >= 0x40 and (bank & 0x7f) <= 0x6f then
addr = ((addr >> 1) & 0x78000) | (addr & 0x7fff)
elseif (bank & 0x7f) >= 0x70 and (bank & 0x7f) <= 0x7d and offset >= 0x8000 then
addr = ((addr >> 1) & 0x78000) | (addr & 0x7fff)
elseif bank >= 0xfe and offset >= 0x8000 then
addr = ((addr >> 1) & 0x78000) | (addr & 0x7fff)
else
error("error game genie cheat not rom addr " .. desc)
end
return snes_prepare_cheat(desc, addr, newval)
end
function codefuncs.snes_ar(desc, code)
code = code:gsub("[: %-]", "")
if #code ~= 8 then
error("error action replay cheat incorrect length " .. desc)
end
cheat.script.on = string.format([[
addr = %d
save = rom:read_u8(addr)
on = true
rom:write_u8(addr, %d)
]], addr, newval)
return cheat
local addr = tonumber(code:sub(1, 6), 16)
local val = tonumber(code:sub(7, 8), 16)
if not addr or not val then
error("error parsing action replay cheat " .. desc)
end
return snes_prepare_cheat(desc, addr, val)
end
function codefuncs.megadriv_gg(desc, code)
@ -145,8 +170,6 @@ function codefuncs.megadriv_gg(desc, code)
["2"] = 24, ["3"] = 25, ["4"] = 26, ["5"] = 27, ["6"] = 28, ["7"] = 29, ["8"] = 30, ["9"] = 31 }
local value = 0
local count = 0
local cheat = { desc = desc, region = { rom = ":mdslot:cart:rom" } }
cheat.script = { off = "if on then rom:write_u16(addr, save) end" }
code:upper():gsub("(.)", function(s)
if s == "-" then
return
@ -161,18 +184,23 @@ function codefuncs.megadriv_gg(desc, code)
end
local newval = ((value >> 32) & 0xff) | ((value >> 3) & 0x1f00) | ((value << 5) & 0xe000)
local addr = (value & 0xff00ff) | ((value >> 16) & 0xff00)
cheat.script.on = string.format([[
addr = %d
save = rom:read_u16(addr)
on = true
rom:write_u16(addr, %d)
]], addr, newval)
return cheat
return prepare_rom_cheat(desc, ":mdslot:cart:rom", addr, newval, 16)
end
function codefuncs.megadriv_ar(desc, code)
code = code:gsub("[: %-]", "")
if #code ~= 10 then
error("error action replay cheat incorrect length " .. desc)
end
local addr = tonumber(code:sub(1, 7), 16)
local val = tonumber(code:sub(7, 10), 16)
if addr < 0xff0000 then
error("error action replay cheat not ram addr " .. desc)
end
return prepare_ram_cheat(desc, ":maincpu", addr, val, 16)
end
local function gbgg_ggcodes(desc, code, region)
local cheat = { desc = desc, region = { rom = region } }
cheat.script = { off = "if on then rom:write_u16(addr, save) end" }
code = code:gsub("%-", "")
local comp
if #code == 6 then
@ -193,25 +221,10 @@ local function gbgg_ggcodes(desc, code, region)
error("error game genie cheat bad addr " .. desc)
end
if comp == -1 then
cheat.script.on = string.format([[
addr = %d
save = rom:read_u8(addr)
on = true
rom:write_u8(addr, %d)
]], addr, newval)
return prepare_rom_cheat(desc, region, addr, newval, 8)
else
-- assume 8K banks
cheat.script.on = string.format([[
addr = %d
save = %d
for i = 0, rom.size, 8192 do
if rom:read_u8(i + addr) == save then
on = true
addr = i + addr
rom:write_u8(addr, %d)
break
end
end]], addr & 0x3fff, comp, newval)
return prepare_rom_cheat(desc, region, addr, newval, 8, 8192, comp)
end
return cheat
end
@ -224,6 +237,21 @@ function codefuncs.gamegear_gg(desc, code)
return gbgg_ggcodes(desc, code, ":slot:cart:rom")
end
function codefuncs.gamegear_ar(desc, code)
code = code:gsub("[: %-]", "")
if #code ~= 8 then
error("error action replay cheat incorrect length " .. desc)
end
local addr = tonumber(code:sub(1, 6), 16)
local val = tonumber(code:sub(7, 8), 16)
if addr < 0xc000 or addr >= 0xe000 then
error("error action replay cheat not ram addr " .. desc)
end
return prepare_ram_cheat(desc, ":maincpu", addr, val, 8)
end
codefuncs.sms_ar = codefuncs.gamegear_ar
function simple.conv_cheat(data)
local cheats = {}
for line in data:gmatch('([^\n;]+)') do
@ -242,17 +270,22 @@ function simple.conv_cheat(data)
end
end
elseif size and val then
cheat = { desc = desc, space = { cpup = { tag = cputag, type = "program" } } }
if size == "w" then
size = "u16"
size = 16
elseif size == "d" then
size = "u32"
size = 32
elseif size == "q" then
size = "u64"
size = 64
else
size = "u8"
size = 8
end
addr = tonumber(addr, 16)
val = tonumber(val, 16)
if manager:machine().devices[cputag] then
cheat = prepare_ram_cheat(desc, cputag, addr, val, size)
else
cheat = prepare_rom_cheat(desc, cputag, addr, val, size)
end
cheat.script = { run = "cpup:write_" .. size .. "(0x" .. offset .. ",0x" .. val .. ", true)" }
end
if cheat then
cheats[#cheats + 1] = cheat