1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
|
-- license:BSD-3-Clause
-- copyright-holders:Carl
-- This includes a library of functions to be used at the Lua console as cf.getspaces() etc...
local exports = {}
exports.name = "cheatfind"
exports.version = "0.0.1"
exports.description = "Cheat finder helper library"
exports.license = "BSD-3-Clause"
exports.author = { name = "Carl" }
local cheatfind = exports
function cheatfind.startplugin()
local cheat = {}
-- return table of devices and spaces
function cheat.getspaces()
local spaces = {}
for tag, device in pairs(manager.machine.devices) do
if device.spaces then
spaces[tag] = {}
for name, space in pairs(device.spaces) do
spaces[tag][name] = space
end
end
end
return spaces
end
-- return table of ram devices
function cheat.getram()
local ram = {}
for tag, device in pairs(manager.machine.devices) do
if device.shortname == "ram" then
ram[tag] = {}
ram[tag].dev = device
ram[tag].size = emu.item(device.items["0/m_size"]):read(0)
end
end
return ram
end
-- return table of share regions
function cheat.getshares()
local shares = {}
for tag, share in pairs(manager.machine.memory.shares) do
shares[tag] = share
end
return shares
end
-- save data block
function cheat.save(space, start, size)
local data = { block = "", start = start, size = size, space = space, shift = 0 }
if getmetatable(space).__name:match("addr_space") then
data.shift = space.shift
end
if getmetatable(space).__name:match("device_t") then
if space.shortname == "ram" then
data.block = emu.item(space.items["0/m_pointer"]):read_block(start, size)
if not data.block then
return nil
end
end
else
local block = ""
local temp = {}
local j = 1
if data.shift >= 0 then -- region or byte wide space
for i = start, start + (size << data.shift), 1 << data.shift do
if j < 65536 then
temp[j] = string.pack("B", space:read_u8(i))
j = j + 1
else
block = block .. table.concat(temp) .. string.pack("B", space:read_u8(i))
temp = {}
j = 1
end
end
elseif data.shift < 0 then
local s = -data.shift
local read = (s == 1) and space.read_u16 or (s == 2) and space.read_u32 or (s == 3) and space.read_u64 or space.read_u8
local pack = (s == 1) and "<I2" or (s == 2) and "<I4" or (s == 3) and "<I8" or "B"
for i = start, start + (size >> s) do
if j < 65536 then
temp[j] = string.pack(pack, read(space, i))
j = j + 1
else
block = block .. table.concat(temp) .. string.pack(pack, read(space, i))
temp = {}
j = 1
end
end
end
block = block .. table.concat(temp)
data.block = block
end
return data
end
-- compare two data blocks, format is as lua string.unpack, bne and beq val is table of masks, step is address increment value
function cheat.comp(newdata, olddata, oper, format, val, bcd, step)
local ret = {}
local ref = {} -- this is a helper for comparing two match lists
local bitmask = nil
if not step or step <= 0 then
step = 1
end
if (olddata.shift < 0) and (step < (1 << -olddata.shift)) then
step = 1 << -olddata.shift;
end
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,
ltv = function(a, b, val) return a < val end,
gtv = function(a, b, val) return a > val end,
eqv = function(a, b, val) return a == val end,
nev = function(a, b, val) return a ~= val end }
function cfoper.bne(a, b, val, addr)
if type(val) ~= "table" then
bitmask = a ~ b
return bitmask ~= 0
elseif not val[addr] then
return false
else
bitmask = (a ~ b) & val[addr]
return bitmask ~= 0
end
end
function cfoper.beq(a, b, val, addr)
if type(val) ~= "table" then
bitmask = ~a ~ b
return bitmask ~= 0
elseif not val[addr] then
return false
else
bitmask = (~a ~ b) & val[addr]
return bitmask ~= 0
end
end
local function check_bcd(val)
local a = val + 0x0666666666666666
a = a ~ val
return (a & 0x1111111111111110) == 0
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 not newdata and oper:sub(3, 3) == "v" then
newdata = olddata
end
if olddata.start ~= newdata.start or olddata.size ~= newdata.size or not cfoper[oper] then
return {}
end
if not val then
val = 0
end
for i = 1, olddata.size, step do
local oldstat, old = pcall(string.unpack, format, olddata.block, i)
local newstat, new = pcall(string.unpack, format, newdata.block, i)
if oldstat and newstat then
local oldc, newc = old, new
local comp = false
local addr = i - 1
if olddata.shift ~= 0 then
local s = olddata.shift
addr = (s < 0) and addr >> -s or (s > 0) and addr << s
end
addr = addr + olddata.start
if not bcd or (check_bcd(old) and check_bcd(new)) then
if bcd then
oldc = frombcd(old)
newc = frombcd(new)
end
if cfoper[oper](newc, oldc, val, addr) then
ret[#ret + 1] = { addr = addr,
oldval = old,
newval = new,
bitmask = bitmask }
ref[addr] = #ret
end
end
end
end
return ret, ref
end
local function check_val(oper, val, matches)
if oper ~= "beq" and oper ~= "bne" then
return val
elseif not matches or not matches[1].bitmask then
return nil
end
local masks = {}
for num, match in pairs(matches) do
masks[match.addr] = match.bitmask
end
return masks
end
-- compare two blocks and filter by table of previous matches
function cheat.compnext(newdata, olddata, oldmatch, oper, format, val, bcd, step)
local matches, refs = cheat.comp(newdata, olddata, oper, format, check_val(oper, val, oldmatch), bcd, step)
local nonmatch = {}
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 = {}
for num, match in pairs(matches) do
if not nonmatch[num] then
resort[#resort + 1] = match
end
end
return resort
end
-- compare a data block to the current state
function cheat.compcur(olddata, oper, format, val, bcd, step)
local newdata = cheat.save(olddata.space, olddata.start, olddata.size, olddata.space)
return cheat.comp(newdata, olddata, oper, format, val, bcd, step)
end
-- compare a data block to the current state and filter
function cheat.compcurnext(olddata, oldmatch, oper, format, val, bcd, step)
local newdata = cheat.save(olddata.space, olddata.start, olddata.size, olddata.space)
return cheat.compnext(newdata, olddata, oldmatch, oper, format, val, bcd, step)
end
_G.emu.plugin.cheatfind = cheat
local devtable = {}
local devsel = 1
local devcur = 1
local formname = { "u8", "big u16", "big u32", "big u64", "little u16", "little u32",
"little u64", "s8", "big s16", "big s32", "big s64", "little s16", "little s32", "little s64", }
local formtable = { " I1", ">I2", ">I4", ">I8", "<I2", "<I4", "<I8", " i1", ">i2", ">i4", ">i8", "<i2", "<i4", "<i8", }
-- " <f", " >f", " <d", " >d" }
local width = 1
local bcd = 0
local align = 0
local optable = { "lt", "gt", "eq", "ne", "beq", "bne", "ltv", "gtv", "eqv", "nev" }
local opsel = 1
local value = 0
local leftop = 1
local rightop = 1
local value_text = ""
local pausesel = 1
local pokevalsel = 1
local matches = {}
local matchsel = 0
local matchpg = 0
local menu_blocks = {}
local watches = {}
local menu_func
local cheat_save
local name = 1
local name_player = 1
local name_type = 1
local name_other = ""
local function start()
devtable = {}
devsel = 1
devcur = 1
width = 1
bcd = 0
opsel = 1
value = 0
leftop = 1
rightop = 1
matches = {}
matchsel = 0
matchpg = 0
menu_blocks = {}
watches = {}
local space_table = cheat.getspaces()
for tag, list in pairs(space_table) do
for name, space in pairs(list) do
local ram = {}
for num, entry in pairs(space.map.entries) do
if entry.write.handlertype == "ram" then
ram[#ram + 1] = {
offset = entry.address_start & space.address_mask,
size = (entry.address_end & space.address_mask) - (entry.address_start & space.address_mask) }
if space.shift > 0 then
ram[#ram].size = ram[#ram].size >> space.shift
elseif space.shift < 0 then
ram[#ram].size = ram[#ram].size << -space.shift
end
end
end
if next(ram) then
if tag == ":maincpu" and name == "program" then
table.insert(devtable, 1, { name = tag .. ", " .. name, tag = tag, sname = name, space = space, ram = ram })
else
devtable[#devtable + 1] = { name = tag .. ", " .. name, tag = tag, sname = name, space = space, ram = ram }
end
end
end
end
space_table = cheat.getram()
for tag, ram in pairs(space_table) do
devtable[#devtable + 1] = { tag = tag, name = "ram", space = ram.dev, ram = {{ offset = 0, size = ram.size }} }
end
space_table = cheat.getshares()
for tag, share in pairs(space_table) do
devtable[#devtable + 1] = { tag = tag, name = tag, space = share, ram = {{ offset = 0, size = share.size }} }
end
end
emu.register_start(start)
local menu_is_showing = false
local tabbed_out = false
local function menu_populate()
if pausesel == 1 then
emu.pause()
menu_is_showing = true
end
local menu = {}
local function menu_prepare()
local menu_list = {}
menu_func = {}
for num, func in ipairs(menu) do
local item, f = func()
if item then
table.insert(menu_list, item)
menu_func[#menu_list] = f
end
end
return menu_list
end
local function menu_lim(val, min, max, menuitem)
if min == max then
menuitem[3] = "on"
elseif val == min then
menuitem[3] = "r"
elseif val == max then
menuitem[3] = "l"
else
menuitem[3] = "lr"
end
end
local function incdec(event, val, min, max)
local ret = false
if event == "left" and val ~= min then
val = val - 1
ret = true
elseif event == "right" and val ~= max then
val = val + 1
ret = true
end
return val, ret
end
if cheat_save then
local cplayer = { "All", "P1", "P2", "P3", "P4" }
local ctype = { "Infinite Credits", "Infinite Time", "Infinite Lives", "Infinite Energy", "Infinite Ammo", "Infinite Bombs", "Invincibility", _("Other: ") }
menu[#menu + 1] = function() return { _("Save Cheat"), "", "off" }, nil end
menu[#menu + 1] = function() return { "---", "", "off" }, nil end
menu[#menu + 1] = function()
local c = { _("Default"), _("Custom") }
local m = { _("Cheat Name"), c[name], "on" }
menu_lim(name, 1, #c, m)
local function f(event)
local r
name, r = incdec(event, name, 1, #c)
if (event == "select" or event == "comment") and name == 1 then
manager.machine:popmessage(string.format(_("Default name is %s"), cheat_save.name))
end
return r
end
return m, f
end
if name == 2 then
menu[#menu + 1] = function()
local m = { _("Player"), cplayer[name_player], "on" }
menu_lim(name_player, 1, #cplayer, m)
return m, function(event) local r name_player, r = incdec(event, name_player, 1, #cplayer) return r end
end
menu[#menu + 1] = function()
local m = { _("Type"), ctype[name_type] .. (name_type == #ctype and (#name_other ~= 0 and name_other or _("(empty)")) or ""), "on" }
menu_lim(name_type, 1, #ctype, m)
local function f(event)
local r
name_type, r = incdec(event, name_type, 1, #ctype)
if name_type == #ctype then
local char = tonumber(event)
if char then
if #name_other > 0 and (char == 8 or char == 0x7f) then
name_other = name_other:sub(1, utf8.offset(name_other, -1) - 1)
r = true
elseif char > 0x1f and (char & ~0x7f) ~= 0x80 and (char & ~0xf) ~= 0xfdd0 and (char & ~0xfffe) ~= 0xfffe then
name_other = name_other .. utf8.char(char)
r = true
end
elseif event == "select" or event == "comment" or event == "right" then
manager.machine:popmessage(_("You can enter any type name"))
end
end
return r
end
return m, f
end
end
menu[#menu + 1] = function()
local m = { _("Save"), "", "on" }
local function f(event)
if event == "select" then
local desc
local written = false
if name == 2 then
desc = name_type ~= #ctype and ctype[name_type] or name_other
if #desc == 0 then
manager.machine:popmessage(_("Type name is empty"))
return
end
if cplayer[name_player] ~= "All" then
desc = cplayer[name_player] .. " " .. desc
end
else
desc = cheat_save.name
end
local filename = cheat_save.filename .. "_" .. desc
local file = io.open(filename .. ".json", "w")
if file then
file:write(string.format(cheat_save.json, desc))
file:close()
-- xml or simple are program space only
if not getmetatable(devtable[devcur].space).__name:match("device_t") and devtable[devcur].sname == "program" then
file = io.open(filename .. ".xml", "w")
file:write(string.format(cheat_save.xml, desc))
file:close()
file = io.open(cheat_save.path .. "/cheat.simple", "a")
file:write(string.format(cheat_save.simple, desc))
-- old cheat .dat format, write support only (for cheat forum posting of new cheats if posted in simple format)
file:write(string.format(cheat_save.dat, desc))
file:close()
manager.machine:popmessage(string.format(_("Cheat written to %s and added to cheat.simple"), filename))
end
written = true
elseif not getmetatable(devtable[devcur].space).__name:match("device_t") and devtable[devcur].sname == "program" then
file = io.open(cheat_save.path .. "/cheat.simple", "a")
if file then
file:write(string.format(cheat_save.simple, desc))
-- old cheat .dat format, write support only (for cheat forum posting of new cheats if posted in simple format)
file:write(string.format(cheat_save.dat, desc))
file:close()
manager.machine:popmessage(_("Cheat added to cheat.simple"))
written = true
end
end
if not written then
manager.machine:popmessage(_("Unable to write file\nEnsure that cheatpath folder exists"))
end
cheat_save = nil
return true
end
return false
end
return m, f
end
menu[#menu + 1] = function() return { _("Cancel"), "", "on" }, function(event) if event == "select" then cheat_save = nil return true end end end
return menu_prepare()
end
menu[#menu + 1] = function()
local m = { _("CPU or RAM"), devtable[devsel].name, "on" }
menu_lim(devsel, 1, #devtable, m)
local function f(event)
if (event == "left" or event == "right") and #menu_blocks ~= 0 then
manager.machine:popmessage(_("Changes to this only take effect when \"Start new search\" is selected"))
end
local r
devsel, r = incdec(event, devsel, 1, #devtable)
return r
end
return m, f
end
menu[#menu + 1] = function()
local pausetable = { _("Automatic"), _("Manual") }
local m = { _("Pause Mode"), pausetable[pausesel], "on" }
menu_lim(pausesel, 1, pausetable, m)
local function f(event)
if (event == "left" or event == "right") then
if pausesel == 1 then
pausesel = 2
menu_is_showing = false
manager.machine:popmessage(_("Manually toggle pause when needed"))
else
pausesel = 1
manager.machine:popmessage(_("Automatically toggle pause with on-screen menus"))
emu.pause()
end
return true
end
return false
end
return m, f
end
menu[#menu + 1] = function()
local function f(event)
local ret = false
if event == "select" then
menu_blocks = {}
matches = {}
devcur = devsel
for num, region in ipairs(devtable[devcur].ram) do
menu_blocks[num] = {}
menu_blocks[num][1] = cheat.save(devtable[devcur].space, region.offset, region.size)
end
manager.machine:popmessage(_("All slots cleared and current state saved to Slot 1"))
watches = {}
opsel = 1
value = 0
leftop = 1
rightop = 1
value_text = ""
matchsel = 0
return true
end
end
local opsel = 1
return { _("Start new search"), "", "on" }, f
end
if #menu_blocks ~= 0 then
menu[#menu + 1] = function() return { "---", "", "off" }, nil end
menu[#menu + 1] = function()
local function f(event)
if event == "select" then
for num, region in ipairs(devtable[devcur].ram) do
menu_blocks[num][#menu_blocks[num] + 1] = cheat.save(devtable[devcur].space, region.offset, region.size)
end
manager.machine:popmessage(string.format(_("Memory state saved to Slot %d"), #menu_blocks[1]))
if (leftop == #menu_blocks[1] - 1 and rightop == #menu_blocks[1] - 2 ) then
leftop = #menu_blocks[1]
rightop = #menu_blocks[1]-1
elseif (leftop == #menu_blocks[1] - 2 and rightop == #menu_blocks[1] - 1 ) then
leftop = #menu_blocks[1]-1
rightop = #menu_blocks[1]
elseif (leftop == #menu_blocks[1] - 1 ) then
leftop = #menu_blocks[1]
elseif (rightop == #menu_blocks[1] - 1) then
rightop = #menu_blocks[1]
end
devsel = devcur
return true
end
return false
end
return { string.format(_("Save current memory state to Slot %d"), #menu_blocks[1] + 1), "", "on" }, f
end
menu[#menu + 1] = function() return { "---", "", "off" }, nil end
menu[#menu + 1] = function()
local function f(event)
if event == "select" then
local count = 0
local step = align == 1 and formtable[width]:sub(3, 3) or "1"
if step == "f" then
step = 4
elseif step == "d" then
step = 8
else
step = tonumber(step)
end
if #matches == 0 then
matches[1] = {}
for num = 1, #menu_blocks do
matches[1][num] = cheat.comp(menu_blocks[num][leftop], menu_blocks[num][rightop],
optable[opsel], formtable[width], value, bcd == 1, step)
count = count + #matches[1][num]
end
else
lastmatch = matches[#matches]
matches[#matches + 1] = {}
for num = 1, #menu_blocks do
matches[#matches][num] = cheat.compnext(menu_blocks[num][leftop], menu_blocks[num][rightop],
lastmatch[num], optable[opsel], formtable[width], value, bcd == 1, step)
count = count + #matches[#matches][num]
end
end
manager.machine:popmessage(string.format(_("%d total matches found"), count))
matches[#matches].count = count
matchpg = 0
devsel = devcur
return true
end
return false
end
local slot_slot_comp = _("Perform Compare : Slot %d %s Slot %d")
local slot_slot_val_comp = _("Perform Compare : Slot %d %s Slot %d %s %d")
local slot_slot_bit_comp = _("Perform Compare : Slot %d BITWISE%s Slot %d")
local slot_val_comp = _("Perform Compare : Slot %d %s %d")
local expression_text
if optable[opsel] == "lt" then
if (value == 0 ) then
expression_text = string.format(slot_slot_comp, leftop, "<", rightop)
else
expression_text = string.format(slot_slot_val_comp, leftop, "==", rightop, "-", value)
end
elseif optable[opsel] == "gt" then
if (value == 0 ) then
expression_text = string.format(slot_slot_comp, leftop, ">", rightop)
else
expression_text = string.format(slot_slot_val_comp, leftop, "==", rightop, "+", value)
end
elseif optable[opsel] == "eq" then
expression_text = string.format(slot_slot_comp, leftop, "==", rightop)
elseif optable[opsel] == "ne" then
if (value == 0 ) then
expression_text = string.format(slot_slot_comp, leftop, "!=", rightop)
else
expression_text = string.format(slot_slot_val_comp, leftop, "==", rightop, "+/-", value)
end
elseif optable[opsel] == "beq" then
expression_text = string.format(slot_slot_bit_comp, leftop, "==", rightop)
elseif optable[opsel] == "bne" then
expression_text = string.format(slot_slot_bit_comp, leftop, "!=", rightop)
elseif optable[opsel] == "ltv" then
expression_text = string.format(slot_val_comp, leftop, "<", value)
elseif optable[opsel] == "gtv" then
expression_text = string.format(slot_val_comp, leftop, ">", value)
elseif optable[opsel] == "eqv" then
expression_text = string.format(slot_val_comp, leftop, "==", value)
elseif optable[opsel] == "nev" then
expression_text = string.format(slot_val_comp, leftop, "!=", value)
end
return { expression_text, "", "on" }, f
end
menu[#menu + 1] = function() return { "---", "", "off" }, nil end
menu[#menu + 1] = function()
local m = { string.format("%d", leftop), "", "on" }
menu_lim(leftop, 1, #menu_blocks[1], m)
m[1] = string.format(_("Slot %d"), leftop)
return m, function(event) local r leftop, r = incdec(event, leftop, 1, #menu_blocks[1]) return r end
end
menu[#menu + 1] = function()
local m = { _(optable[opsel]), "", "on" }
menu_lim(opsel, 1, #optable, m)
local function f(event)
local r
opsel, r = incdec(event, opsel, 1, #optable)
if event == "left" or event == "right" or event == "comment" then
if optable[opsel] == "lt" then
manager.machine:popmessage(_("Left less than right"))
elseif optable[opsel] == "gt" then
manager.machine:popmessage(_("Left greater than right"))
elseif optable[opsel] == "eq" then
manager.machine:popmessage(_("Left equal to right"))
elseif optable[opsel] == "ne" then
manager.machine:popmessage(_("Left not equal to right"))
elseif optable[opsel] == "beq" then
manager.machine:popmessage(_("Left equal to right with bitmask"))
elseif optable[opsel] == "bne" then
manager.machine:popmessage(_("Left not equal to right with bitmask"))
elseif optable[opsel] == "ltv" then
manager.machine:popmessage(_("Left less than value"))
elseif optable[opsel] == "gtv" then
manager.machine:popmessage(_("Left greater than value"))
elseif optable[opsel] == "eqv" then
manager.machine:popmessage(_("Left equal to value"))
elseif optable[opsel] == "nev" then
manager.machine:popmessage(_("Left not equal to value"))
end
end
return r
end
return m, f
end
menu[#menu + 1] = function()
if optable[opsel]:sub(3, 3) == "v" then
return nil
end
local m = { string.format("%d", rightop), "", "on" }
menu_lim(rightop, 1, #menu_blocks[1], m)
m[1] = string.format(_("Slot %d"), rightop)
return m, function(event) local r rightop, r = incdec(event, rightop, 1, #menu_blocks[1]) return r end
end
menu[#menu + 1] = function()
if optable[opsel] == "bne" or optable[opsel] == "beq" or optable[opsel] == "eq" then
return nil
end
local m
if optable[opsel] == "ltv" or optable[opsel] == "gtv" or optable[opsel] == "eqv" or optable[opsel] == "nev" then
m = { _("Value"), tostring(value), "" }
else
m = { _("Difference"), tostring(value), "" }
end
local max = 100 -- max value?
menu_lim(value, 0, max, m)
if value == 0 and optable[opsel]:sub(3, 3) ~= "v" then
m[2] = _("Any")
end
return m, function(event) local r value, r = incdec(event, value, 0, max) return r end
end
menu[#menu + 1] = function() return { "---", "", "off" }, nil end
menu[#menu + 1] = function()
local m = { _("Data Format"), formname[width], "on" }
menu_lim(width, 1, #formtable, m)
return m, function(event) local r width, r = incdec(event, width, 1, #formtable) return r end
end
menu[#menu + 1] = function()
local pokevaltable = { _("Slot 1 Value"), _("Last Slot Value"), "0x00", "0x01", "0x02", "0x03", "0x04", "0x05", "0x06",
"0x07", "0x08", "0x09", "0x63 (99)", "0x99", "0xFF (255)" , "0x3E7 (999)", "0x999", "0x270F (9999)",
"0x9999", "0xFFFF (65535)" }
local m = { _("Test/Write Poke Value"), pokevaltable[pokevalsel], "on" }
menu_lim(pokevalsel, 1, #pokevaltable, m)
local function f(event)
local r
pokevalsel, r = incdec(event, pokevalsel, 1, #pokevaltable)
if event == "left" or event == "right" or event == "comment" then
if pokevalsel == 1 then
manager.machine:popmessage(_("Use this if you want to poke the Slot 1 value (eg. You started with something but lost it)"))
elseif pokevalsel == 2 then
manager.machine:popmessage(_("Use this if you want to poke the Last Slot value (eg. You started without an item but finally got it)"))
else
manager.machine:popmessage(string.format(_("Use this if you want to poke %s"), pokevaltable[pokevalsel]))
end
end
return r
end
return m, f
end
menu[#menu + 1] = function()
if optable[opsel] == "bne" or optable[opsel] == "beq" then
return nil
end
local m = { "BCD", _("Off"), "on" }
menu_lim(bcd, 0, 1, m)
if bcd == 1 then
m[2] = _("On")
end
return m, function(event) local r bcd, r = incdec(event, bcd, 0, 1) return r end
end
menu[#menu + 1] = function()
if formtable[width]:sub(3, 3) == "1" then
return nil
end
local m = { _("Aligned only"), _("Off"), "on" }
menu_lim(align, 0, 1, m)
if align == 1 then
m[2] = _("On")
end
return m, function(event) local r align, r = incdec(event, align, 0, 1) return r end
end
if #matches ~= 0 then
menu[#menu + 1] = function()
local function f(event)
if event == "select" then
matches[#matches] = nil
matchpg = 0
return true
end
return false
end
return { _("Undo last search -- #") .. #matches, "", "on" }, f
end
menu[#menu + 1] = function() return { "---", "", "off" }, nil end
menu[#menu + 1] = function()
local m = { _("Match block"), tostring(matchsel), "" }
menu_lim(matchsel, 0, #matches[#matches], m)
if matchsel == 0 then
m[2] = _("All")
end
local function f(event)
local r
matchsel, r = incdec(event, matchsel, 0, #matches[#matches])
if r then
matchpg = 0
end
return r
end
return m, f
end
local function mpairs(sel, list, start)
if #list == 0 then
return function() end, nil, nil
end
if sel ~= 0 then
list = {list[sel]}
end
local function mpairs_it(list, i)
local match
i = i + 1
local sel = i + start
for j = 1, #list do
if sel <= #list[j] then
match = list[j][sel]
break
else
sel = sel - #list[j]
end
end
if not match then
return
end
return i, match
end
return mpairs_it, list, 0
end
local bitwidth = formtable[width]:sub(3, 3)
if bitwidth == "2" then
bitwidth = " %04x"
elseif bitwidth == "4" then
bitwidth = " %08x"
elseif bitwidth == "8" then
bitwidth = " %016x"
elseif bitwidth == "f" or bitwidth == "d" then
bitwidth = " %010f"
else
bitwidth = " %02x"
end
local function match_exec(match)
local dev = devtable[devcur]
local wid = formtable[width]:sub(3, 3)
local widchar
local pokevalue
local form
if pokevalsel == 1 then
pokevalue = match.oldval
elseif pokevalsel == 2 then
pokevalue = match.newval
elseif pokevalsel == 3 then
pokevalue = 0
elseif pokevalsel == 4 then
pokevalue = 1
elseif pokevalsel == 5 then
pokevalue = 2
elseif pokevalsel == 6 then
pokevalue = 3
elseif pokevalsel == 7 then
pokevalue = 4
elseif pokevalsel == 8 then
pokevalue = 5
elseif pokevalsel == 9 then
pokevalue = 6
elseif pokevalsel == 10 then
pokevalue = 7
elseif pokevalsel == 11 then
pokevalue = 8
elseif pokevalsel == 12 then
pokevalue = 9
elseif pokevalsel == 13 then
pokevalue = 99
elseif pokevalsel == 14 then
pokevalue = 153
elseif pokevalsel == 15 then
pokevalue = 255
elseif pokevalsel == 16 and wid == "1" then
pokevalue = 99
elseif pokevalsel == 17 and wid == "1" then
pokevalue = 153
elseif pokevalsel == 18 and wid == "1" then
pokevalue = 99
elseif pokevalsel == 19 and wid == "1" then
pokevalue = 153
elseif pokevalsel == 20 and wid == "1" then
pokevalue = 255
elseif pokevalsel == 16 then
pokevalue = 999
elseif pokevalsel == 17 then
pokevalue = 2457
elseif pokevalsel == 18 then
pokevalue = 9999
elseif pokevalsel == 19 then
pokevalue = 39321
elseif pokevalsel == 20 then
pokevalue = 65535
end
local cheat = { desc = string.format(_("Test Cheat %08X_%02X"), match.addr, pokevalue), script = {} }
if wid == "2" then
wid = "u16"
form = "%08x %04x"
widchar = "w"
elseif wid == "4" then
wid = "u32"
form = "%08x %08x"
widchar = "d"
elseif wid == "8" then
wid = "u64"
form = "%08x %016x"
widchar = "q"
elseif wid == "f" then
wid = "u32"
form = "%08x %f"
widchar = "d"
elseif wid == "d" then
wid = "u64"
form = "%08x %f"
widchar = "q"
else
wid = "u8"
form = "%08x %02x"
widchar = "b"
end
if getmetatable(dev.space).__name:match("device_t") then
cheat.ram = { ram = dev.tag }
cheat.script.run = "ram:write(" .. match.addr .. "," .. pokevalue .. ")"
elseif getmetatable(dev.space).__name:match("memory_share") then
cheat.share = { share = dev.tag }
cheat.script.run = "share:write_" .. wid .. "(" .. match.addr .. "," .. pokevalue .. ")"
else
cheat.space = { cpu = { tag = dev.tag, type = dev.sname } }
cheat.script.run = "cpu:write_" .. wid .. "(" .. match.addr .. "," .. pokevalue .. ")"
end
if match.mode == 1 then
if not emu.plugin.cheat then
manager.machine:popmessage(_("Cheat engine not available"))
else
emu.plugin.cheat.inject(cheat)
end
elseif match.mode == 2 then
cheat_save = {}
menu = 1
menu_player = 1
menu_type = 1
local setname = emu.romname()
if emu.softname() ~= "" then
if emu.softname():find(":") then
setname = emu.softname():gsub(":", "/")
else
for name, image in pairs(manager.machine.images) do
if image.exists and image.software_list_name ~= "" then
setname = image.software_list_name .. "/" .. emu.softname()
end
end
end
end
cheat_save.path = manager.machine.options.entries.cheatpath:value():match("([^;]+)")
cheat_save.filename = string.format("%s/%s", cheat_save.path, setname)
cheat_save.name = cheat.desc
local json = require("json")
cheat.desc = "%s"
cheat_save.json = json.stringify({[1] = cheat}, {indent = true})
cheat_save.xml = string.format("<mamecheat version=\"1\">\n <cheat desc=\"%%s\">\n <script state=\"run\">\n <action>%s.pp%s@%X=%X</action>\n </script>\n </cheat>\n</mamecheat>", dev.tag:sub(2), widchar, match.addr, match.newval)
cheat_save.simple = string.format("%s,%s,%X,%s,%X,%%s\n", setname, dev.tag, match.addr, widchar, pokevalue)
cheat_save.dat = string.format(":%s:40000000:%X:%08X:FFFFFFFF:%%s\n", setname, match.addr, pokevalue)
manager.machine:popmessage(string.format(_("Default name is %s"), cheat_save.name))
return true
else
local func = "return space:read"
local env = {}
if not getmetatable(dev.space).__name:match("device_t") then
env.space = devtable[devcur].space;
func = func .. "_" .. wid
else
env.space = emu.item(dev.space.items["0/m_pointer"])
end
func = func .. "(" .. match.addr .. ")"
watches[#watches + 1] = { addr = match.addr, func = load(func, func, "t", env), format = form }
return true
end
return false
end
for num2, match in mpairs(matchsel, matches[#matches], matchpg * 100) do
if num2 > 100 then
break
end
menu[#menu + 1] = function()
if not match.mode then
match.mode = 1
end
local modes = { _("Test"), _("Write"), _("Watch") }
local m = { string.format("%08x" .. bitwidth .. bitwidth, match.addr, match.oldval,
match.newval), modes[match.mode], "on" }
menu_lim(match.mode, 1, #modes, m)
local function f(event)
local r
match.mode, r = incdec(event, match.mode, 1, 3)
if event == "select" then
r = match_exec(match)
end
return r
end
return m, f
end
end
if matches[#matches].count > 100 then
menu[#menu + 1] = function()
local m = { _("Page"), tostring(matchpg), "on" }
local max
if matchsel == 0 then
max = math.ceil(matches[#matches].count / 100) - 1
else
max = #matches[#matches][matchsel]
end
menu_lim(matchpg, 0, max, m)
local function f(event)
local r
matchpg, r = incdec(event, matchpg, 0, max)
return r
end
return m, f
end
end
end
if #watches ~= 0 then
menu[#menu + 1] = function()
return { _("Clear Watches"), "", "on" }, function(event) if event == "select" then watches = {} return true end end
end
end
end
return menu_prepare()
end
local function menu_callback(index, event)
if event == "back" and pausesel == 1 then
emu.unpause()
menu_is_showing = false
return false -- return false so menu will be popped off the stack
end
if index == 0 then return false end
return menu_func[index](event)
end
emu.register_menu(menu_callback, menu_populate, _("Cheat Finder"))
emu.register_frame_done(function ()
local screen = manager.machine.render.ui_container
local height = mame_manager.ui.line_height
for num, watch in ipairs(watches) do
screen:draw_text("left", num * height, string.format(watch.format, watch.addr, watch.func()))
end
if tabbed_out and manager.ui.menu_active then
emu.pause()
menu_is_showing = true
tabbed_out = false
end
end)
emu.register_periodic(function ()
if menu_is_showing and not manager.ui.menu_active then
emu.unpause()
menu_is_showing = false
tabbed_out = true
end
end)
end
return exports
|