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[[FF8/Field/Script/Opcodes/000 ADD]]By Aali, myst6re and Shard.
[[FF8/Field/Script/Opcodes/002 MUL]]The field script language in ff8 is a simple assembly language with a stack. Here is an example:
[[FF8/Field/Script/Opcodes/005 MIN]]In standard code, it's equivalent to:
[[FF8/Field/Script/Opcodes/006 EQ]]if(var1024 == 6) { var1024 = 0; } else { var1024 = 1; }
Each Opcode's page lists all the parameters for that function in the order you would put them on the stack before the function call. The inline argument is listed separately, if the function requires one. For example, on the page for [[FF8/Field/Script/Opcodes/008 GE01E_SET3|SET3]], the parameters are listed like this:
[[FF8/Field/Script/Opcodes/009 LS]]: ''XCoord'': ''YCoord'': ''ZCoord'': '''SET3'''
[[FF8/Field/Script/Opcodes/00A LE]]Which means when you call '''SET3''', the ZCoord is the top item on the stack, YCoord is under it, and XCoord is under that, for example
[[FF8/Field/Script/Opcodes/00B NT]]PSHN_L 402 (XCoord) PSHN_L -381 (YCoord) PSHN_L 20 (ZCoord) SET3 17 (walkmesh triangle ID)
[[FF8/Field/Script/Opcodes/00D OR]] [[FF8/Field/Script/Opcodes/00E EOR]] [[FF8/Field/Script/Opcodes/00F NOP]] [[FF8/Field/Script/Opcodes/010 CAL]] [[FF8/Field/Script/Opcodes/011 JMP]] [[FF8/Field/Script/Opcodes/012 JPF]] [[FF8/Field/Script/Opcodes/013 GJMP]] [[FF8/Field/Script/Opcodes/014 LBL]] [[FF8/Field/Script/Opcodes/015 RET]] [[FF8/Field/Script/Opcodes/016 PSHN_L]] [[FF8/Field/Script/Opcodes/017 PSHI_L]] [[FF8/Field/Script/Opcodes/018 POPI_L]] [[FF8/Field/Script/Opcodes/019 PSHM_B]] [[FF8/Field/Script/Opcodes/01A POPM_B]] [[FF8/Field/Script/Opcodes/01B PSHM_W]] [[FF8/Field/Script/Opcodes/01C POPM_W]] [[FF8/Field/Script/Opcodes/01D PSHM_L]] [[FF8/Field/Script/Opcodes/01E POPM_L]] [[FF8/Field/Script/Opcodes/01F PSHSM_B]] [[FF8/Field/Script/Opcodes/020 PSHSM_W]] [[FF8/Field/Script/Opcodes/021 PSHSM_L]] [[FF8/Field/Script/Opcodes/022 PSHAC]] [[FF8/Field/Script/Opcodes/023 REQ]] [[FF8/Field/Script/Opcodes/024 REQSW]] [[FF8/Field/Script/Opcodes/025 REQEW]] [[FF8/Field/Script/Opcodes/026 PREQ]] [[FF8/Field/Script/Opcodes/027 PREQSW]] [[FF8/Field/Script/Opcodes/028 PREQEW]] [[FF8/Field/Script/Opcodes/029 UNUSE]] [[FF8/Field/Script/Opcodes/02A DEBUG]] [[FF8/Field/Script/Opcodes/02B HALT]] [[FF8/Field/Script/Opcodes/02C SET]] [[FF8/Field/Script/Opcodes/02D SET3]] [[FF8/Field/Script/Opcodes/02E IDLOCK]] [[FF8/Field/Script/Opcodes/02F IDUNLOCK]] [[FF8/Field/Script/Opcodes/030 EFFECTPLAY2]] [[FF8/Field/Script/Opcodes/031 FOOTSTEP]] [[FF8/Field/Script/Opcodes/032 JUMP]] [[FF8/Field/Script/Opcodes/033 JUMP3]] [[FF8/Field/Script/Opcodes/034 LADDERUP]] [[FF8/Field/Script/Opcodes/035 LADDERDOWN]] [[FF8/Field/Script/Opcodes/036 LADDERUP2]] [[FF8/{| class="wikitable sortable" border="1"! Opcode! Name! Function Type|-| 000|[[FF8/Field/Script/Opcodes/000_NOP|000 NOP]] ''(Unused)''| Script Processing|-| 001|[[FF8/Field/Script/Opcodes/001_CAL|001 CAL]]| Script Processing|-| 002|[[FF8/Field/Script/Opcodes/002_JMP|002 JMP]]| Script Processing|-| 003|[[FF8/Field/Script/Opcodes/003_JPF|003 JPF]]| Script Processing|-| 004|[[FF8/Field/Script/Opcodes/004_GJMP|004 GJMP]] ''(Unused)''| Script Processing|-| 005|[[FF8/Field/Script/Opcodes/005_LBL|005 LBL]]| Script Processing|-| 006|[[FF8/Field/Script/Opcodes/006_RET|006 RET]]| Script Processing|-| 007|[[FF8/Field/Script/Opcodes/007_PSHN_L|007 PSHN_L]]| Memory|-| 008|[[FF8/Field/Script/Opcodes/008_PSHI_L|008 PSHI_L]]| Memory|-| 009|[[FF8/Field/Script/Opcodes/009_POPI_L|009 POPI_L]]| Memory|-| 00A|[[FF8/Field/Script/Opcodes/00A_PSHM_B|00A PSHM_B]]| Memory|-| 00B|[[FF8/Field/Script/Opcodes/00B_POPM_B|00B POPM_B]]| Memory|-| 00C|[[FF8/Field/Script/Opcodes/00C_PSHM_W|00C PSHM_W]]| Memory|-| 00D|[[FF8/Field/Script/Opcodes/00D_POPM_W|00D POPM_W]]| Memory|-| 00E|[[FF8/Field/Script/Opcodes/00E_PSHM_L|00E PSHM_L]]| Memory|-| 00F|[[FF8/Field/Script/Opcodes/00F_POPM_L|00F POPM_L]]| Memory|-| 010|[[FF8/Field/Script/Opcodes/010_PSHSM_B|010 PSHSM_B]]| Memory|-| 011|[[FF8/Field/Script/Opcodes/011_PSHSM_W|011 PSHSM_W]]| Memory|-| 012|[[FF8/Field/Script/Opcodes/012_PSHSM_L|012 PSHSM_L]]| Memory|-| 013|[[FF8/Field/Script/Opcodes/013_PSHAC|013 PSHAC]]| Memory|-| 014|[[FF8/Field/Script/Opcodes/014_REQ|014 REQ]]| Script Processing|-| 015|[[FF8/Field/Script/Opcodes/015_REQSW|015 REQSW]]| Script Processing|-| 016|[[FF8/Field/Script/Opcodes/016_REQEW|016 REQEW]]| Script Processing|-| 017|[[FF8/Field/Script/Opcodes/017_PREQ|017 PREQ]]| Script Processing|-| 018|[[FF8/Field/Script/Opcodes/018_PREQSW|018 PREQSW]]| Script Processing|-| 019|[[FF8/Field/Script/Opcodes/019_PREQEW|019 PREQEW]]| Script Processing|-| 01A|[[FF8/Field/Script/Opcodes/01A_UNUSE|01A UNUSE]]| Entity|-| 01B|[[FF8/Field/Script/Opcodes/01B_DEBUG|01B DEBUG]] ''(Unused)''||-| 01C|[[FF8/Field/Script/Opcodes/01C_HALT|01C HALT]]| Script Processing|-| 01D|[[FF8/Field/Script/Opcodes/01D_SET|01D SET]]| Entity|-| 01E|[[FF8/Field/Script/Opcodes/01E_SET3|01E SET3]]| Entity|-| 01F|[[FF8/Field/Script/Opcodes/01F_IDLOCK|01F IDLOCK]]| Field related|-| 020|[[FF8/Field/Script/Opcodes/020_IDUNLOCK|020 IDUNLOCK]]| Field related|-| 021|[[FF8/Field/Script/Opcodes/021_EFFECTPLAY2|021 EFFECTPLAY2]]| Music and Sound|-| 022|[[FF8/Field/Script/Opcodes/022_FOOTSTEP|022 FOOTSTEP]]||-| 023|[[FF8/Field/Script/Opcodes/023_JUMP|023 JUMP]]| Entity|-| 024|[[FF8/Field/Script/Opcodes/024_JUMP3|024 JUMP3]]| Entity|-| 025|[[FF8/Field/Script/Opcodes/025_LADDERUP|025 LADDERUP]]| Entity|-| 026|[[FF8/Field/Script/Opcodes/026_LADDERDOWN|026 LADDERDOWN]]| Entity|-| 027|[[FF8/Field/Script/Opcodes/027_LADDERUP2|027 LADDERUP2]]| Entity|-| 028|[[FF8/Field/Script/Opcodes/028_LADDERDOWN2|028 LADDERDOWN2]]| Entity|-| 029|[[FF8/Field/Script/Opcodes/029_MAPJUMP|029 MAPJUMP]]| Field related|-| 02A|[[FF8/Field/Script/Opcodes/02A_MAPJUMP3|02A MAPJUMP3]]| Field related|-| 02B|[[FF8/Field/Script/Opcodes/02B_SETMODEL|02B SETMODEL]]| Entity|-| 02C|[[FF8/Field/Script/Opcodes/02C_BASEANIME|02C BASEANIME]]| Animation|-| 02D|[[FF8/Field/Script/Opcodes/02D_ANIME|02D ANIME]]| Animation|-| 02E|[[FF8/Field/Script/Opcodes/02E_ANIMEKEEP|02E ANIMEKEEP]]| Animation|-| 02F|[[FF8/Field/Script/Opcodes/02F_CANIME|02F CANIME]]| Animation|-| 030|[[FF8/Field/Script/Opcodes/030_CANIMEKEEP|030 CANIMEKEEP]]| Animation|-| 031|[[FF8/Field/Script/Opcodes/031_RANIME|031 RANIME]]| Animation|-| 032|[[FF8/Field/Script/Opcodes/032_RANIMEKEEP|032 RANIMEKEEP]]| Animation|-| 033|[[FF8/Field/Script/Opcodes/033_RCANIME|033 RCANIME]]| Animation|-| 034|[[FF8/Field/Script/Opcodes/034_RCANIMEKEEP|034 RCANIMEKEEP]]| Animation|-| 035|[[FF8/Field/Script/Opcodes/035_RANIMELOOP|035 RANIMELOOP]]| Animation|-| 036|[[FF8/Field/Script/Opcodes/036_RCANIMELOOP|036 RCANIMELOOP]]| Animation|-| 037|[[FF8/Field/Script/Opcodes/037_LADDERANIME|037 LADDERANIME]]| Animation|-| 038|[[FF8/Field/Script/Opcodes/038_DISCJUMP|038 DISCJUMP]]| Field related|-| 039|[[FF8/Field/Script/Opcodes/039_SETLINE|039 SETLINE]]| Entity|-| 03A|[[FF8/Field/Script/Opcodes/03A_LINEON|03A LINEON]]| Entity|-| 03B|[[FF8/Field/Script/Opcodes/03B_LINEOFF|03B LINEOFF]]| Entity|-| 03C|[[FF8/Field/Script/Opcodes/03C_WAIT|03C WAIT]]| Script Processing|-| 03D|[[FF8/Field/Script/Opcodes/03D_MSPEED|03D MSPEED]]||-| 03E|[[FF8/Field/Script/Opcodes/03E_MOVE|03E MOVE]]| Entity|-| 03F|[[FF8/Field/Script/Opcodes/03F_MOVEA|03F MOVEA]]||-| 040|[[FF8/Field/Script/Opcodes/040_PMOVEA|040 PMOVEA]]||-
13 revisions imported
== [[FF8/Field/Script/Opcodes/001 SUB]]The language ==
stack = [[FF8/Field/Script/Opcodes/003 MOD]]
PSHM_W 1024 # push var1024 onto the stack (stack = [var1024]) PSHN_L 6 # push number 6 onto the stack (stack = [6Â ; var1024]) CAL EQ # compare the two numbers at the top of the stack, pop this numbers, and push the result (1 or 0) into the stack (stack = [1 or 0]) JPF LABEL1 # if the popped top of the stack is 0, jump to LABEL1 (stack = []) PSHN_L 0 # push 0 at the top of the stack (stack = [0]) POPM_W 1024 # pop the top of the stack into var1024 (stack = []) JMP LABEL2 # goto LABEL2 LABEL1 PSHN_L 1 # push 1 at the top of the stack (stack = [FF8/Field/Script/Opcodes/004 DIV1]) POPM_W 1024 # pop the top of the stack into var1024 (stack = []) LABEL2 ...
== [[FF8/Field/Script/Opcodes/007 GT]]Reading Documentation ==
== [[FF8/Field/Script/Opcodes/00C AND]]Opcode list ==
