Where are the free sysvars?

[fulizer]

last time I looked there were a few empty system variables that could be used for whatever you wanted.
where are these?
also how many in/ out sysvars are there?

[EricL]

The majority of bot memory isn't used by the system.  There are only 227 sysvars (version 2.43.1e) - actually I think its more like 224 as there are a few duplicate names that map to the same location.  The list is below, straight from the code.  Add in the genetic memory locations and you still end up with fewer than 250 locations used by the system.  The rest are open for private use.

I gaurentee locations 50-175 inclusive will not be used by the system in the future.  Bot authors are encouraged (but not required) to define private sysvars in this range.

As of 2.43.1e, there are 10 in/out sysvar pairs.


 sysvar(1).Name = "up"
  sysvar(1).value = 1
  sysvar(2).Name = "dn"
  sysvar(2).value = 2
  sysvar(3).Name = "sx"
  sysvar(3).value = 3
  sysvar(4).Name = "dx"
  sysvar(4).value = 4
  sysvar(5).Name = "aimdx"
  sysvar(5).value = 5
  sysvar(6).Name = "aimright"
  sysvar(6).value = 5
  sysvar(7).Name = "aimsx"
  sysvar(7).value = 6
  sysvar(.Name = "aimleft"
  sysvar(.value = 6
  sysvar(9).Name = "shoot"
  sysvar(9).value = 7
  sysvar(10).Name = "shootval"
  sysvar(10).value = 8
  sysvar(11).Name = "robage"
  sysvar(11).value = 9
  sysvar(12).Name = "mass"
  sysvar(12).value = 10
  sysvar(13).Name = "maxvel"
  sysvar(13).value = 11
  sysvar(14).Name = "timer"
  sysvar(14).value = 12
  sysvar(15).Name = "aim"
  sysvar(15).value = 18
  sysvar(16).Name = "setaim"
  sysvar(16).value = 19
  sysvar(17).Name = "bodgain"
  sysvar(17).value = 194
  sysvar(18).Name = "bodloss"
  sysvar(18).value = 195
  sysvar(19).Name = "velscalar"
  sysvar(19).value = 196
  sysvar(20).Name = "velsx"
  sysvar(20).value = 197
  sysvar(21).Name = "veldx"
  sysvar(21).value = 198
  sysvar(22).Name = "veldn"
  sysvar(22).value = 199
  sysvar(23).Name = "velup"
  sysvar(23).value = 200
  sysvar(24).Name = "vel"
  sysvar(24).value = 200
  sysvar(25).Name = "hit"
  sysvar(25).value = 201
  sysvar(26).Name = "shflav"
  sysvar(26).value = 202
  sysvar(27).Name = "pain"
  sysvar(27).value = 203
  sysvar(28).Name = "pleas"
  sysvar(28).value = 204
  sysvar(29).Name = "hitup"
  sysvar(29).value = 205
  sysvar(30).Name = "hitdn"
  sysvar(30).value = 206
  sysvar(31).Name = "hitdx"
  sysvar(31).value = 207
  sysvar(32).Name = "hitsx"
  sysvar(32).value = 208
  sysvar(33).Name = "shang"
  sysvar(33).value = 209
  sysvar(34).Name = "shup"
  sysvar(34).value = 210
  sysvar(35).Name = "shdn"
  sysvar(35).value = 211
  sysvar(36).Name = "shdx"
  sysvar(36).value = 212
  sysvar(37).Name = "shsx"
  sysvar(37).value = 213
  sysvar(38).Name = "edge"
  sysvar(38).value = 214
  sysvar(39).Name = "fixed"
  sysvar(39).value = 215
  sysvar(40).Name = "fixpos"
  sysvar(40).value = 216
  sysvar(41).Name = "depth"
  sysvar(41).value = 217
  sysvar(42).Name = "ypos"
  sysvar(42).value = 217
  sysvar(43).Name = "daytime"
  sysvar(43).value = 218
  sysvar(44).Name = "xpos"
  sysvar(44).value = 219
  sysvar(45).Name = "kills"
  sysvar(45).value = 220
  sysvar(46).Name = "hitang"
  sysvar(46).value = 221
  sysvar(47).Name = "repro"
  sysvar(47).value = 300
  sysvar(48).Name = "mrepro"
  sysvar(48).value = 301
  sysvar(49).Name = "sexrepro"
  sysvar(49).value = 302
  sysvar(50).Name = "nrg"
  sysvar(50).value = 310
  sysvar(51).Name = "body"
  sysvar(51).value = 311
  sysvar(52).Name = "fdbody"
  sysvar(52).value = 312
  sysvar(53).Name = "strbody"
  sysvar(53).value = 313
  sysvar(54).Name = "setboy"
  sysvar(54).value = 314
  sysvar(55).Name = "rdboy"
  sysvar(55).value = 315
  sysvar(56).Name = "tie"
  sysvar(56).value = 330
  sysvar(57).Name = "stifftie"
  sysvar(57).value = 331
  sysvar(58).Name = "mkvirus"
  sysvar(58).value = 335
  sysvar(59).Name = "dnalen"
  sysvar(59).value = 336
  sysvar(60).Name = "vtimer"
  sysvar(60).value = 337
  sysvar(61).Name = "vshoot"
  sysvar(61).value = 338
  sysvar(62).Name = "genes"
  sysvar(62).value = 339
  sysvar(63).Name = "delgene"
  sysvar(63).value = 340
  sysvar(64).Name = "thisgene"
  sysvar(64).value = 341
  sysvar(65).Name = "sun"
  sysvar(65).value = 400
  sysvar(66).Name = "trefbody"
  sysvar(66).value = 437
  sysvar(67).Name = "trefxpos"
  sysvar(67).value = 438
  sysvar(68).Name = "trefypos"
  sysvar(68).value = 439
  sysvar(69).Name = "trefvelmysx"
  sysvar(69).value = 440
  sysvar(70).Name = "trefvelmydx"
  sysvar(70).value = 441
  sysvar(71).Name = "trefvelmydn"
  sysvar(71).value = 442
  sysvar(72).Name = "trefvelmyup"
  sysvar(72).value = 443
  sysvar(73).Name = "trefvelscalar"
  sysvar(73).value = 444
  sysvar(74).Name = "trefvelyoursx"
  sysvar(74).value = 445
  sysvar(75).Name = "trefvelyourdx"
  sysvar(75).value = 446
  sysvar(76).Name = "trefvelyourdn"
  sysvar(76).value = 447
  sysvar(77).Name = "trefvelyourup"
  sysvar(77).value = 448
  sysvar(78).Name = "trefshell"
  sysvar(78).value = 449
  sysvar(79).Name = "tieang"
  sysvar(79).value = 450
  sysvar(80).Name = "tielen"
  sysvar(80).value = 451
  sysvar(81).Name = "tieloc"
  sysvar(81).value = 452
  sysvar(82).Name = "tieval"
  sysvar(82).value = 453
  sysvar(83).Name = "tiepres"
  sysvar(83).value = 454
  sysvar(84).Name = "tienum"
  sysvar(84).value = 455
  sysvar(85).Name = "trefup"
  sysvar(85).value = 456
  sysvar(86).Name = "trefdn"
  sysvar(86).value = 457
  sysvar(87).Name = "trefsx"
  sysvar(87).value = 458
  sysvar(88).Name = "trefdx"
  sysvar(88).value = 459
  sysvar(89).Name = "trefaimdx"
  sysvar(89).value = 460
  sysvar(90).Name = "trefaimsx"
  sysvar(90).value = 461
  sysvar(91).Name = "trefshoot"
  sysvar(91).value = 462
  sysvar(92).Name = "trefeye"
  sysvar(92).value = 463
  sysvar(93).Name = "trefnrg"
  sysvar(93).value = 464
  sysvar(94).Name = "trefage"
  sysvar(94).value = 465
  sysvar(95).Name = "numties"
  sysvar(95).value = 466
  sysvar(96).Name = "deltie"
  sysvar(96).value = 467
  sysvar(97).Name = "fixang"
  sysvar(97).value = 468
  sysvar(98).Name = "fixlen"
  sysvar(98).value = 469
  sysvar(99).Name = "multi"
  sysvar(99).value = 470
  sysvar(100).Name = "readtie"
  sysvar(100).value = 471
  sysvar(101).Name = "fertilized"
  sysvar(101).value = 303
  sysvar(102).Name = "memval"
  sysvar(102).value = 473
  sysvar(103).Name = "memloc"
  sysvar(103).value = 474
  sysvar(104).Name = "tmemval"
  sysvar(104).value = 475
  sysvar(105).Name = "tmemloc"
  sysvar(105).value = 476
  sysvar(106).Name = "reffixed"
  sysvar(106).value = 477
  sysvar(107).Name = "treffixed"
  sysvar(107).value = 478
  sysvar(108).Name = "trefaim"
  sysvar(108).value = 479
  sysvar(109).Name = "tieang1"
  sysvar(109).value = 480
  sysvar(110).Name = "tieang2"
  sysvar(110).value = 481
  sysvar(111).Name = "tieang3"
  sysvar(111).value = 482
  sysvar(112).Name = "tieang4"
  sysvar(112).value = 483
  sysvar(113).Name = "tielen1"
  sysvar(113).value = 484
  sysvar(114).Name = "tielen2"
  sysvar(114).value = 485
  sysvar(115).Name = "tielen3"
  sysvar(115).value = 486
  sysvar(116).Name = "tielen4"
  sysvar(116).value = 487
  sysvar(117).Name = "eye1"
  sysvar(117).value = 501
  sysvar(118).Name = "eye2"
  sysvar(118).value = 502
  sysvar(119).Name = "eye3"
  sysvar(119).value = 503
  sysvar(120).Name = "eye4"
  sysvar(120).value = 504
  sysvar(121).Name = "eye5"
  sysvar(121).value = 505
  sysvar(122).Name = "eye6"
  sysvar(122).value = 506
  sysvar(123).Name = "eye7"
  sysvar(123).value = 507
  sysvar(124).Name = "eye8"
  sysvar(124).value = 508
  sysvar(125).Name = "eye9"
  sysvar(125).value = 509
  sysvar(126).Name = "refmulti"
  sysvar(126).value = 686
  sysvar(127).Name = "refshell"
  sysvar(127).value = 687
  sysvar(128).Name = "refbody"
  sysvar(128).value = 688
  sysvar(129).Name = "refxpos"
  sysvar(129).value = 689
  sysvar(130).Name = "refypos"
  sysvar(130).value = 690
  sysvar(131).Name = "refvelscalar"
  sysvar(131).value = 695
  sysvar(132).Name = "refvelsx"
  sysvar(132).value = 696
  sysvar(133).Name = "refveldx"
  sysvar(133).value = 697
  sysvar(134).Name = "refveldn"
  sysvar(134).value = 698
  sysvar(135).Name = "refvel"
  sysvar(135).value = 699
  sysvar(136).Name = "refvelup"
  sysvar(136).value = 699
  sysvar(137).Name = "refup"
  sysvar(137).value = 701
  sysvar(138).Name = "refdn"
  sysvar(138).value = 702
  sysvar(139).Name = "refsx"
  sysvar(139).value = 703
  sysvar(140).Name = "refdx"
  sysvar(140).value = 704
  sysvar(141).Name = "refaimdx"
  sysvar(141).value = 705
  sysvar(142).Name = "refaimsx"
  sysvar(142).value = 706
  sysvar(143).Name = "refshoot"
  sysvar(143).value = 707
  sysvar(144).Name = "refeye"
  sysvar(144).value = 708
  sysvar(145).Name = "refnrg"
  sysvar(145).value = 709
  sysvar(146).Name = "refage"
  sysvar(146).value = 710
  sysvar(147).Name = "refaim"
  sysvar(147).value = 711
  sysvar(148).Name = "reftie"
  sysvar(148).value = 712
  sysvar(149).Name = "refpoison"
  sysvar(149).value = 713
  sysvar(150).Name = "refvenom"
  sysvar(150).value = 714
  sysvar(151).Name = "refkills"
  sysvar(151).value = 715
  sysvar(152).Name = "myup"
  sysvar(152).value = 721
  sysvar(153).Name = "mydn"
  sysvar(153).value = 722
  sysvar(154).Name = "mysx"
  sysvar(154).value = 723
  sysvar(155).Name = "mydx"
  sysvar(155).value = 724
  sysvar(156).Name = "myaimdx"
  sysvar(156).value = 725
  sysvar(157).Name = "myaimsx"
  sysvar(157).value = 726
  sysvar(158).Name = "myshoot"
  sysvar(158).value = 727
  sysvar(159).Name = "myeye"
  sysvar(159).value = 728
  sysvar(160).Name = "myties"
  sysvar(160).value = 729
  sysvar(161).Name = "mypoison"
  sysvar(161).value = 730
  sysvar(162).Name = "myvenom"
  sysvar(162).value = 731
  sysvar(163).Name = "out1"
  sysvar(163).value = 800
  sysvar(164).Name = "out2"
  sysvar(164).value = 801
  sysvar(165).Name = "out3"
  sysvar(165).value = 802
  sysvar(166).Name = "out4"
  sysvar(166).value = 803
  sysvar(167).Name = "out5"
  sysvar(167).value = 804
  sysvar(168).Name = "in1"
  sysvar(168).value = 810
  sysvar(169).Name = "in2"
  sysvar(169).value = 811
  sysvar(170).Name = "in3"
  sysvar(170).value = 812
  sysvar(171).Name = "in4"
  sysvar(171).value = 813
  sysvar(172).Name = "in5"
  sysvar(172).value = 814
  sysvar(173).Name = "mkslime"
  sysvar(173).value = 820
  sysvar(174).Name = "slime"
  sysvar(174).value = 821
  sysvar(175).Name = "mkshell"
  sysvar(175).value = 822
  sysvar(176).Name = "shell"
  sysvar(176).value = 823
  sysvar(177).Name = "strvenom"
  sysvar(177).value = 824
  sysvar(178).Name = "venom"
  sysvar(178).value = 825
  sysvar(179).Name = "strpoison"
  sysvar(179).value = 826
  sysvar(180).Name = "mkpoison"
  sysvar(180).value = 826
  sysvar(181).Name = "poison"
  sysvar(181).value = 827
  sysvar(182).Name = "waste"
  sysvar(182).value = 828
  sysvar(183).Name = "pwaste"
  sysvar(183).value = 829
  sysvar(184).Name = "sharenrg"
  sysvar(184).value = 830
  sysvar(185).Name = "sharewaste"
  sysvar(185).value = 831
  sysvar(186).Name = "shareshell"
  sysvar(186).value = 832
  sysvar(187).Name = "shareslime"
  sysvar(187).value = 833
  sysvar(188).Name = "ploc"
  sysvar(188).value = 834
  sysvar(189).Name = "vloc"
  sysvar(189).value = 835
  sysvar(190).Name = "venval"
  sysvar(190).value = 836
  sysvar(191).Name = "paralyzed"
  sysvar(191).value = 837
  sysvar(192).Name = "poisoned"
  sysvar(192).value = 838
  sysvar(193).Name = "backshot"
  sysvar(193).value = 900
  sysvar(194).Name = "aimshoot"
  sysvar(194).value = 901
  sysvar(195).Name = "eyef"
  sysvar(195).value = 510
  sysvar(196).Name = "focuseye"
  sysvar(196).value = 511
  sysvar(197).Name = "eye1dir"
  sysvar(197).value = 521
  sysvar(198).Name = "eye2dir"
  sysvar(198).value = 522
  sysvar(199).Name = "eye3dir"
  sysvar(199).value = 523
  sysvar(200).Name = "eye4dir"
  sysvar(200).value = 524
  sysvar(201).Name = "eye5dir"
  sysvar(201).value = 525
  sysvar(202).Name = "eye6dir"
  sysvar(202).value = 526
  sysvar(203).Name = "eye7dir"
  sysvar(203).value = 527
  sysvar(204).Name = "eye8dir"
  sysvar(204).value = 528
  sysvar(205).Name = "eye9dir"
  sysvar(205).value = 529
  sysvar(206).Name = "eye1width"
  sysvar(206).value = 531
  sysvar(207).Name = "eye2width"
  sysvar(207).value = 532
  sysvar(208).Name = "eye3width"
  sysvar(208).value = 533
  sysvar(209).Name = "eye4width"
  sysvar(209).value = 534
  sysvar(210).Name = "eye5width"
  sysvar(210).value = 535
  sysvar(211).Name = "eye6width"
  sysvar(211).value = 536
  sysvar(212).Name = "eye7width"
  sysvar(212).value = 537
  sysvar(213).Name = "eye8width"
  sysvar(213).value = 538
  sysvar(214).Name = "eye9width"
  sysvar(214).value = 539
  sysvar(215).Name = "reftype"
  sysvar(215).value = 685
  sysvar(216).Name = "totalbots"
  sysvar(216).value = 401
  sysvar(217).Name = "totalmyspecies"
  sysvar(217).value = 402
  sysvar(218).Name = "out6"
  sysvar(218).value = 805
  sysvar(219).Name = "out7"
  sysvar(219).value = 806
  sysvar(220).Name = "out8"
  sysvar(220).value = 807
  sysvar(221).Name = "out9"
  sysvar(221).value = 808
  sysvar(222).Name = "out10"
  sysvar(222).value = 815
  sysvar(223).Name = "in6"
  sysvar(223).value = 816
  sysvar(224).Name = "in7"
  sysvar(224).value = 817
  sysvar(225).Name = "in8"
  sysvar(225).value = 818
  sysvar(226).Name = "in9"
  sysvar(226).value = 819
  sysvar(227).Name = "in10"
  sysvar(227).value = 820

[Moonfisher]

I gaurentee locations 50-175 inclusive will not be used by the system in the future.

Sweet
Also nice to have 10 int/out values... still a big fat zero for ties though... I feel closer to a bot when I look at it than I do when I'm tied to it...

Also since you're on the subject I thought I should add :

971-975 : Will be copied to offspring instantly.
976-990 : Will be copied to offspring through birthtie over 15 cycles. (If the tie isn't broken)

And while I'm waiting for the Sysvar page to load so I can push the Racial memmory link and wait for that page to load, I may aswell ask :
Why are the Wiki pages so insanely slow The forum has virtualy no load time in comparison... and occasionaly a Wiki page will load in less than a second, but more often than not it'll take like 1-5 mins which seems like far too long for such a simple page to load... I know it's offtopic...

[Numsgil]

I've noticed wiki lag, too.  It might be that animated GIF I have in the upper left corner.  I'm pretty sure a web browser would cache it, but maybe not (it's like a meg large or something like that).

I'll play around with it when I have a chance.

[asterixx]

I've noticed wiki lag, too.

Yeah, I noticed that as well.

[fulizer]

The majority of bot memory isn't used by the system.  There are only 227 sysvars (version 2.43.1e) - actually I think its more like 224 as there are a few duplicate names that map to the same location.  The list is below, straight from the code.  Add in the genetic memory locations and you still end up with fewer than 250 locations used by the system.  The rest are open for private use.

I gaurentee locations 50-175 inclusive will not be used by the system in the future.  Bot authors are encouraged (but not required) to define private sysvars in this range.

 
well that confused me
so where are they?
im pretty sure I didnt see any.
by the way im using 2.43 (still)

[abyaly]

Every memory location that isn't used by sysvars is considered a free variable.

[fulizer]

theres 1000 of them right?
so if eric l (in his infinate wisodm of all things darwinbot stoped at 820 there are  180 free vaiables?

theres 1000 of them right?
so if eric l (in his infinate wisodm of all things darwinbot stoped at 820 there are  180 free vaiables?

[EricL]

theres 1000 of them right?

There are 1000 memory locations.  Understand, a sysvar is nothing more than simply a named memory location that the system uses for some purpose.  So, yes, there are 1000 mem locations, about 250 of which are used by the system for one purpose or another, so the other 750 can be used as your own private variables.  As above, I recommend staying within the 50-175 range so that future versiosn don't break your bots.  So, if you want to define a private variable, just do the following at the top of your bot:

def private1 50
def someotherprivatename 51
.
.
.
Then use them like normal sysvars.  I.e.

cond
*.private1 0 <>
start
1023 .someotherprivatename store
blah
blah
blah

[Moonfisher]

You can also use def to define constant values... actualy that's all you're realy doing to begin with.
Only difference is when you name a memmory location you store something in that area (Ex : 10 .keyloc store), and fetching the value it's pointing at (So *.keyloc would be 10). If you define a constant you just call it directly (Ex : *.memval .key !=)
Basicaly the * means you want the value in this memmory location, and no star means you just want the memmory location itself.

A good example :

'Memmory location of your conspec key
def keyloc 50

'Your key value
def key 1234

cond
*.robage 0 =
start
.key .keyloc store 'Save key value in memmory location 50
.keyloc .memloc store 'Set memloc to point at memmory location 50
stop

cond
*.eye5 0 >
*.memval .key != 'If the value in oponents memmory location 50 isn't our key
start
-1 .shoot store
stop

or you could use :

cond
*.eye5 0 >
*.memval *.keyloc != 'If the value in oponents memmory location 50 isn't what we have in memmory location 50
start
-1 .shoot store
stop

So without defines this would look like this :

cond
*.robage 0 =
start
1234 50 store 'Save key value in memmory location 50
50 .memloc store 'Set memloc to point at memmory location 50
stop

cond
*.eye5 0 >
*.memval 1234 != 'If the value in oponents memmory location 50 isn't our key
start
-1 .shoot store
stop

or you could use :

cond
*.eye5 0 >
*.memval *50 != 'If the value in oponents memmory location 50 isn't what we have in memmory location 50
start
-1 .shoot store
stop

The reserved memmory locations are scattered, theres gaps in between them, and these may later get reserved for new system variables.
But the locations Eric is talking about will never get reserved, use those locations if you want to be sure your bot doesn't fall appart because of a new sysvar overlaping one of your variables.

Sorry if I'm explaining needless details, but you seemed confused about this so I just wrote everything there is to know.

[Numsgil]

Or, to put another way:

the . operator is used to turn a label in to a number  With sysvars, you use it to turn repro in to 300.  .repro and 300 and functionally equivelent.  If you prefix the . operator with a *, it's a compound statement that first converts the label in to a number, and then fetches the information at that memory location.  Anything that is not used by the system for sysvars is available for personal use by a bot.  You can also define custom labels (your own personal sysvars) if you like using a def statement at the beginning of the DNA.

[NightfangII]

A list of the Free Variables can be found here.