Difference between revisions of "Pre Formula Setup (FDC)"

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m (just added a few notes at the top of the page - may need more further down, as well as a jr r2 location list)
(Finished including and correcting notes in the bottom portion of the page)
Line 19: Line 19:
 
  0018b390: 3c018019 lui r1,0x8019
 
  0018b390: 3c018019 lui r1,0x8019
 
  0018b394: ac232d98 sw r3,0x2d98(r1) Store Defender's Data Location
 
  0018b394: ac232d98 sw r3,0x2d98(r1) Store Defender's Data Location
−
  0018b398: 2483018c addiu r3,r4,0x018c defender data location + 0x18c (current action data)
+
  0018b398: 2483018c addiu r3,r4,0x018c Start of unit data + 0x018c (current action data)
−
  0018b39c: 00431021 addu r2,r2,r3 Defender current action location + Defender ID * 0x1c0 (why?)
+
  0018b39c: 00431021 addu r2,r2,r3 Current action data + 0x01c0 (defenders current action data)
 
  0018b3a0: 93a30010 lbu r3,0x0010(r29) Load attackers unit ID from stack
 
  0018b3a0: 93a30010 lbu r3,0x0010(r29) Load attackers unit ID from stack
 
  0018b3a4: 3c018019 lui r1,0x8019
 
  0018b3a4: 3c018019 lui r1,0x8019
Line 101: Line 101:
 
  0018b4d8: a42338d6 sh r3,0x38d6(r1) Store Used Ability ID
 
  0018b4d8: a42338d6 sh r3,0x38d6(r1) Store Used Ability ID
 
  0018b4dc: 3c028019 lui r2,0x8019
 
  0018b4dc: 3c028019 lui r2,0x8019
−
  0018b4e0: 944238d6 lhu r2,0x38d6(r2) Load Used Ability ID
+
  0018b4e0: 944238d6 lhu r2,0x38d6(r2) Load Used Ability ID (pointless and sucky)
 
  0018b4e4: 3c018019 lui r1,0x8019
 
  0018b4e4: 3c018019 lui r1,0x8019
 
  0018b4e8: a02038d9 sb r0,0x38d9(r1) Store Two Hands as inactive
 
  0018b4e8: a02038d9 sb r0,0x38d9(r1) Store Two Hands as inactive
Line 107: Line 107:
 
  0018b4f0: 14400002 bne r2,r0,0x0018b4fc If Ability ID < Hi-Potion, go get ability pointer
 
  0018b4f0: 14400002 bne r2,r0,0x0018b4fc If Ability ID < Hi-Potion, go get ability pointer
 
  0018b4f4: 26050018 addiu r5,r16,0x0018
 
  0018b4f4: 26050018 addiu r5,r16,0x0018
−
  0018b4f8: 00001821 addu r3,r0,r0 Else load the pointer of first attack
+
  0018b4f8: 00001821 addu r3,r0,r0 load the pointer of first attack
 
  0018b4fc: 000320c0 sll r4,r3,0x03 Used Ability ID * 8
 
  0018b4fc: 000320c0 sll r4,r3,0x03 Used Ability ID * 8
 
  0018b500: 00832023 subu r4,r4,r3 Used Ability ID * 7
 
  0018b500: 00832023 subu r4,r4,r3 Used Ability ID * 7
−
  0018b504: 00042040 sll r4,r4,0x01 Used Ability ID * 14
+
  0018b504: 00042040 sll r4,r4,0x01 Used Ability ID * 14 (if ability ID >= Hi potion, r4 = 0)
 
  0018b508: 3c028006 lui r2,0x8006
 
  0018b508: 3c028006 lui r2,0x8006
 
  0018b50c: 2442fbf0 addiu r2,r2,0xfbf0 Load Ability Data
 
  0018b50c: 2442fbf0 addiu r2,r2,0xfbf0 Load Ability Data
Line 157: Line 157:
 
  0018b5b8: 00000000 nop
 
  0018b5b8: 00000000 nop
 
  0018b5bc: 3c028019 lui r2,0x8019
 
  0018b5bc: 3c028019 lui r2,0x8019
−
  0018b5c0: 944238c6 lhu r2,0x38c6(r2) Load ???
+
  0018b5c0: 944238c6 lhu r2,0x38c6(r2) Load ??? (reaction ID? this halfword seems to handle all post-attack results...)
 
  0018b5c4: 00000000 nop
 
  0018b5c4: 00000000 nop
−
  0018b5c8: a7a20012 sh r2,0x0012(r29) If Spell proc is true, store proc ID as used ability ID (temporary)
+
  0018b5c8: a7a20012 sh r2,0x0012(r29) If Spell proc is true, store proc ID as used ability ID (temporary)  
 
  0018b5cc: 3c018019 lui r1,0x8019
 
  0018b5cc: 3c018019 lui r1,0x8019
 
  0018b5d0: a42238d6 sh r2,0x38d6(r1) Store Spell Proc ID as Used Ability ID
 
  0018b5d0: a42238d6 sh r2,0x38d6(r1) Store Spell Proc ID as Used Ability ID
Line 165: Line 165:
 
  0018b5d8: 00009021 addu r18,r0,r0 Clear Action Menu ID
 
  0018b5d8: 00009021 addu r18,r0,r0 Clear Action Menu ID
 
  0018b5dc: 3c018019 lui r1,0x8019
 
  0018b5dc: 3c018019 lui r1,0x8019
−
  0018b5e0: a42038c6 sh r0,0x38c6(r1) Store ??? as 0x00
+
  0018b5e0: a42038c6 sh r0,0x38c6(r1) Store ??? as 0x00 (reaction ID?)
 
  0018b5e4: 87a30012 lh r3,0x0012(r29)
 
  0018b5e4: 87a30012 lh r3,0x0012(r29)
 
  0018b5e8: 3c028006 lui r2,0x8006
 
  0018b5e8: 3c028006 lui r2,0x8006
Line 175: Line 175:
 
  0018b600: 8c842d90 lw r4,0x2d90(r4) Load Defender Current Action Data
 
  0018b600: 8c842d90 lw r4,0x2d90(r4) Load Defender Current Action Data
 
  0018b604: 30420003 andi r2,r2,0x0003
 
  0018b604: 30420003 andi r2,r2,0x0003
−
  0018b608: a0820018 sb r2,0x0018(r4) Store Abilities AI Target Enemies/Allies into 0x18 of Current Action Data
+
  0018b608: a0820018 sb r2,0x0018(r4) Store Abilities AI Target Enemies/Allies into 0x18 of Current Action Data (positive spells 'miss,' negative spells are 'guarded'!)
−
  0018b60c: 90620007 lbu r2,0x0007(r3) Load fourth set of AI Flags?
+
  0018b60c: 90620007 lbu r2,0x0007(r3) Load fourth set of combo AI/non AI flags (ai flags 4)
 
  0018b610: 00000000 nop
 
  0018b610: 00000000 nop
 
  0018b614: 30420001 andi r2,r2,0x0001
 
  0018b614: 30420001 andi r2,r2,0x0001
−
  0018b618: 10400009 beq r2,r0,0x0018b640 Branch if bit 0x01 is not active
+
  0018b618: 10400009 beq r2,r0,0x0018b640 Branch if ability does not evade with motion
 
  0018b61c: 324300ff andi r3,r18,0x00ff Load Action Menu ID into r3
 
  0018b61c: 324300ff andi r3,r18,0x00ff Load Action Menu ID into r3
 
  0018b620: 3c038019 lui r3,0x8019
 
  0018b620: 3c038019 lui r3,0x8019
 
  0018b624: 8c632d90 lw r3,0x2d90(r3) Load Defender Current Action Data
 
  0018b624: 8c632d90 lw r3,0x2d90(r3) Load Defender Current Action Data
 
  0018b628: 00000000 nop
 
  0018b628: 00000000 nop
−
  0018b62c: 90620018 lbu r2,0x0018(r3) Load byte 0x18
+
  0018b62c: 90620018 lbu r2,0x0018(r3) Load 'missed' or 'guarded' byte (positive attack vs negative attack)
 
  0018b630: 00000000 nop
 
  0018b630: 00000000 nop
−
  0018b634: 24420080 addiu r2,r2,0x0080
+
  0018b634: 24420080 addiu r2,r2,0x0080 if ability evades with motion, animate miss
−
  0018b638: a0620018 sb r2,0x0018(r3) If animate on miss, store animate on miss flag as bit 8 into byte 0x18
+
  0018b638: a0620018 sb r2,0x0018(r3) store new animate on miss
 
  0018b63c: 324300ff andi r3,r18,0x00ff Load Action Menu ID into r3
 
  0018b63c: 324300ff andi r3,r18,0x00ff Load Action Menu ID into r3
 
  0018b640: 34020007 ori r2,r0,0x0007 r2 0x07
 
  0018b640: 34020007 ori r2,r0,0x0007 r2 0x07
−
  0018b644: 14620006 bne r3,r2,0x0018b660 Branch if Action Menu ID = Draw Out
+
  0018b644: 14620006 bne r3,r2,0x0018b660 Branch if Action Menu ID != Draw Out
−
  0018b648: 2c62000b sltiu r2,r3,0x000b
+
  0018b648: 2c62000b sltiu r2,r3,0x000b sets true if action menu is not Defend or Equip Change
 
  0018b64c: 93a20018 lbu r2,0x0018(r29)
 
  0018b64c: 93a20018 lbu r2,0x0018(r29)
 
  0018b650: 00000000 nop
 
  0018b650: 00000000 nop
 
  0018b654: 24420026 addiu r2,r2,0x0026
 
  0018b654: 24420026 addiu r2,r2,0x0026
−
  0018b658: a7a20012 sh r2,0x0012(r29)
+
  0018b658: a7a20012 sh r2,0x0012(r29) temporary ability ID is assigned 0x26?
−
  0018b65c: 2c62000b sltiu r2,r3,0x000b
+
  0018b65c: 2c62000b sltiu r2,r3,0x000b sets true if action menu is not defend or equip change
 
  0018b660: 10400095 beq r2,r0,0x0018b8b8 Branch if Action Menu Type is defend or equip change; weapon formula = 0x01
 
  0018b660: 10400095 beq r2,r0,0x0018b8b8 Branch if Action Menu Type is defend or equip change; weapon formula = 0x01
−
  0018b664: 00031080 sll r2,r3,0x02
+
  0018b664: 00031080 sll r2,r3,0x02 r2 = action menu * 4 (word)
 
  0018b668: 3c018017 lui r1,0x8017
 
  0018b668: 3c018017 lui r1,0x8017
 
  0018b66c: 00220821 addu r1,r1,r2
 
  0018b66c: 00220821 addu r1,r1,r2
−
  0018b670: 8c224344 lw r2,0x4344(r1) Load ??? Table
+
  0018b670: 8c224344 lw r2,0x4344(r1) Load return addresses for skillsets
 +
Default: 0x8018b694
 +
Item  : 0x8018b76c
 +
Throw  : 0x8018b7d4
 +
Math  : 0x8018b694
 +
Geo    : 0x8018b680
 +
blank  : 0x8018b8b8
 +
Monster: 0x8018b694
 +
Katana : 0x8018b694
 +
Attack : 0x8018b818
 +
Jump  : 0x8018b7dc
 +
Charge : 0x8018b7e4
 +
Menus past this point are ignored by the above branch, and likely just jump to garbage data. they are included regardless as a warning
 +
Defend : 0x27bdffe8
 +
Equip  : 0xafbf0010
 +
Unknown: 0x0c063998
 +
Blank  : 0x00000000
 +
Unknown: 0x00401821
 
  0018b674: 00000000 nop
 
  0018b674: 00000000 nop
−
  0018b678: 00400008 jr r2
+
  0018b678: 00400008 jr r2 jump to location specified by the above table
 
  0018b67c: 00000000 nop
 
  0018b67c: 00000000 nop
 +
 +
Geomancy  jump
 
  0018b680: 3c048019 lui r4,0x8019
 
  0018b680: 3c048019 lui r4,0x8019
 
  0018b684: 8c842d94 lw r4,0x2d94(r4) Load Attacker Data
 
  0018b684: 8c842d94 lw r4,0x2d94(r4) Load Attacker Data
 
  0018b688: 0c05fcb6 jal 0x0017f2d8 [[Get Elemental Ability ID]] ELEMENTAL terrain to skill hard-coding
 
  0018b688: 0c05fcb6 jal 0x0017f2d8 [[Get Elemental Ability ID]] ELEMENTAL terrain to skill hard-coding
 
  0018b68c: 00000000 nop
 
  0018b68c: 00000000 nop
−
  0018b690: a7a20012 sh r2,0x0012(r29)
+
  0018b690: a7a20012 sh r2,0x0012(r29) save ability ID to temp
−
  0018b694: 87a20012 lh r2,0x0012(r29)
+
 +
Default, Math, Monster, Katana jump
 +
  0018b694: 87a20012 lh r2,0x0012(r29) Load it again
 
  0018b698: 00000000 nop
 
  0018b698: 00000000 nop
−
  0018b69c: 28420171 slti r2,r2,0x0171
+
  0018b69c: 28420171 slti r2,r2,0x0171 set true if ability ID is not hardcoded (except for potion apparently, likely a number typo in the original code)
 
  0018b6a0: 10400086 beq r2,r0,0x0018b8bc Branch if Ability ID > 171 (Hi-Potion? Not Potion?)
 
  0018b6a0: 10400086 beq r2,r0,0x0018b8bc Branch if Ability ID > 171 (Hi-Potion? Not Potion?)
 
  0018b6a4: 34100001 ori r16,r0,0x0001 r16 = 0x01
 
  0018b6a4: 34100001 ori r16,r0,0x0001 r16 = 0x01
Line 221: Line 242:
 
  0018b6b8: 00000000 nop
 
  0018b6b8: 00000000 nop
 
  0018b6bc: 30420002 andi r2,r2,0x0002
 
  0018b6bc: 30420002 andi r2,r2,0x0002
−
  0018b6c0: 1040000d beq r2,r0,0x0018b6f8 Branch if unit is not a frog
+
  0018b6c0: 1040000d beq r2,r0,0x0018b6f8 Branch if unit is not a frog (stupid check. frogs can't use geomancy :()
 
  0018b6c4: 00000000 nop
 
  0018b6c4: 00000000 nop
 
  0018b6c8: 3c058019 lui r5,0x8019
 
  0018b6c8: 3c058019 lui r5,0x8019
Line 228: Line 249:
 
  0018b6d4: 00000000 nop
 
  0018b6d4: 00000000 nop
 
  0018b6d8: 14400007 bne r2,r0,0x0018b6f8 Branch if spell proc is true (Check is redundant)
 
  0018b6d8: 14400007 bne r2,r0,0x0018b6f8 Branch if spell proc is true (Check is redundant)
−
  0018b6dc: 24a50036 addiu r5,r5,0x0036 0x801938c8 + 0x36
+
  0018b6dc: 24a50036 addiu r5,r5,0x0036 0x801938c8 + 0x36 (weapon range location)
 
  0018b6e0: 3c018019 lui r1,0x8019
 
  0018b6e0: 3c018019 lui r1,0x8019
 
  0018b6e4: a02038d8 sb r0,0x38d8(r1) If frogged and no spell proc, store Used Weapon ID as 0x00
 
  0018b6e4: a02038d8 sb r0,0x38d8(r1) If frogged and no spell proc, store Used Weapon ID as 0x00
Line 244: Line 265:
 
  0018b714: 3c028006 lui r2,0x8006
 
  0018b714: 3c028006 lui r2,0x8006
 
  0018b718: 2442fbf0 addiu r2,r2,0xfbf0
 
  0018b718: 2442fbf0 addiu r2,r2,0xfbf0
−
  0018b71c: 02028021 addu r16,r16,r2 0x8006fbf0 + ID * 14
+
  0018b71c: 02028021 addu r16,r16,r2 r16 = ability data 2 location for ability ID
 
  0018b720: 0c017895 jal 0x0005e254 [[Store X Byte into Y]] Store ability data into 0x801938f0 - 0x801938fd
 
  0018b720: 0c017895 jal 0x0005e254 [[Store X Byte into Y]] Store ability data into 0x801938f0 - 0x801938fd
 
  0018b724: 02002021 addu r4,r16,r0 Load 0x8006fbf0 + ID * 14 into r4
 
  0018b724: 02002021 addu r4,r16,r0 Load 0x8006fbf0 + ID * 14 into r4
Line 254: Line 275:
 
  0018b73c: 92100008 lbu r16,0x0008(r16) Load Ability Formula
 
  0018b73c: 92100008 lbu r16,0x0008(r16) Load Ability Formula
 
  0018b740: 30420024 andi r2,r2,0x0024
 
  0018b740: 30420024 andi r2,r2,0x0024
−
  0018b744: 1440005e bne r2,r0,0x0018b8c0 Branch if ranged weapon or weapon strike to get formula address, using the spell's formula
+
  0018b744: 1440005e bne r2,r0,0x0018b8c0 Branch if Weapon Range or Weapon Strike to get formula address, using the spell's formula
 
  0018b748: 320200ff andi r2,r16,0x00ff
 
  0018b748: 320200ff andi r2,r16,0x00ff
 
  0018b74c: 324300ff andi r3,r18,0x00ff Load Action Menu into r3
 
  0018b74c: 324300ff andi r3,r18,0x00ff Load Action Menu into r3
Line 264: Line 285:
 
  0018b764: 08062e2f j 0x0018b8bc
 
  0018b764: 08062e2f j 0x0018b8bc
 
  0018b768: 00000000 nop
 
  0018b768: 00000000 nop
 +
 +
Item Jump
 
  0018b76c: 93a70018 lbu r7,0x0018(r29)
 
  0018b76c: 93a70018 lbu r7,0x0018(r29)
 
  0018b770: 00000000 nop
 
  0018b770: 00000000 nop
 
  0018b774: 2ce200f0 sltiu r2,r7,0x00f0
 
  0018b774: 2ce200f0 sltiu r2,r7,0x00f0
−
  0018b778: 14400050 bne r2,r0,0x0018b8bc Branch if ITEM command not used
+
  0018b778: 14400050 bne r2,r0,0x0018b8bc Branch if ITEM command not used (?)
 
  0018b77c: 34100001 ori r16,r0,0x0001 r16 = 0x01
 
  0018b77c: 34100001 ori r16,r0,0x0001 r16 = 0x01
 
  0018b780: 3c048019 lui r4,0x8019
 
  0018b780: 3c048019 lui r4,0x8019
−
  0018b784: 248438d8 addiu r4,r4,0x38d8 Load Used Weapon ID
+
  0018b784: 248438d8 addiu r4,r4,0x38d8 Load Used Weapon ID location
−
  0018b788: a0870000 sb r7,0x0000(r4) Load Used Weapon ID into r7
+
  0018b788: a0870000 sb r7,0x0000(r4) Save used weapon ID
 
  0018b78c: 24e70010 addiu r7,r7,0x0010 Used Weapon ID + 0x10
 
  0018b78c: 24e70010 addiu r7,r7,0x0010 Used Weapon ID + 0x10
 
  0018b790: 24840018 addiu r4,r4,0x0018 Used Weapon ID + 0x18
 
  0018b790: 24840018 addiu r4,r4,0x0018 Used Weapon ID + 0x18
 
  0018b794: 30e200ff andi r2,r7,0x00ff Move Used Weapon ID + 0x10 into R2
 
  0018b794: 30e200ff andi r2,r7,0x00ff Move Used Weapon ID + 0x10 into R2
−
  0018b798: 00028040 sll r16,r2,0x01 ID * 2
+
  0018b798: 00028040 sll r16,r2,0x01 r16 = 2*ID + 0x20
−
  0018b79c: 02028021 addu r16,r16,r2 ID * 3
+
  0018b79c: 02028021 addu r16,r16,r2 r16 = 3*ID + 0x30
 
  0018b7a0: 3c028006 lui r2,0x8006
 
  0018b7a0: 3c028006 lui r2,0x8006
 
  0018b7a4: 24423f98 addiu r2,r2,0x3f98 Load Item Secondary Data (For ITEM)
 
  0018b7a4: 24423f98 addiu r2,r2,0x3f98 Load Item Secondary Data (For ITEM)
−
  0018b7a8: 02028021 addu r16,r16,r2 Item Data + ID * 3
+
  0018b7a8: 02028021 addu r16,r16,r2 r16 = 80062f98 + 3*ID + 0x30
 
  0018b7ac: 3c018019 lui r1,0x8019
 
  0018b7ac: 3c018019 lui r1,0x8019
 
  0018b7b0: a02738db sb r7,0x38db(r1) Store Consumed Item ID
 
  0018b7b0: a02738db sb r7,0x38db(r1) Store Consumed Item ID
Line 287: Line 310:
 
  0018b7c0: 0c017991 jal 0x0005e644 [[Data Nullifying]]
 
  0018b7c0: 0c017991 jal 0x0005e644 [[Data Nullifying]]
 
  0018b7c4: 3405000e ori r5,r0,0x000e r5 = 0x0e (limit)
 
  0018b7c4: 3405000e ori r5,r0,0x000e r5 = 0x0e (limit)
−
  0018b7c8: 92100000 lbu r16,0x0000(r16)
+
  0018b7c8: 92100000 lbu r16,0x0000(r16) Load Item formula
−
  0018b7cc: 08062e30 j 0x0018b8c0 If ITEM command, get formula address of item formula
+
  0018b7cc: 08062e30 j 0x0018b8c0 Get formula address of item formula
 
  0018b7d0: 320200ff andi r2,r16,0x00ff
 
  0018b7d0: 320200ff andi r2,r16,0x00ff
−
  0018b7d4: 08062e2f j 0x0018b8bc If THROW command, get formula address with formula = 0x63
+
 +
Throw Jump
 +
  0018b7d4: 08062e2f j 0x0018b8bc Get formula address with formula = 0x63
 
  0018b7d8: 34100063 ori r16,r0,0x0063
 
  0018b7d8: 34100063 ori r16,r0,0x0063
−
  0018b7dc: 08062e2f j 0x0018b8bc If JUMP command, get formula address with formula = 0x64
+
 +
Jump Jump
 +
  0018b7dc: 08062e2f j 0x0018b8bc Get formula address with formula = 0x64
 
  0018b7e0: 34100064 ori r16,r0,0x0064
 
  0018b7e0: 34100064 ori r16,r0,0x0064
−
  0018b7e4: 97a30012 lhu r3,0x0012(r29)
+
 +
Charge Jump
 +
  0018b7e4: 97a30012 lhu r3,0x0012(r29) Loads ability ID?
 
  0018b7e8: 00000000 nop
 
  0018b7e8: 00000000 nop
−
  0018b7ec: 2462fe6a addiu r2,r3,0xfe6a
+
  0018b7ec: 2462fe6a addiu r2,r3,0xfe6a ability ID - 196
−
  0018b7f0: 2c420008 sltiu r2,r2,0x0008
+
  0018b7f0: 2c420008 sltiu r2,r2,0x0008 set true if ability ID - 196 is less than 8
−
  0018b7f4: 14400003 bne r2,r0,0x0018b804 Branch if skill is CHARGE (where does CHARGE decide to always use formula 05?)
+
  0018b7f4: 14400003 bne r2,r0,0x0018b804 Branch if skill is CHARGE
 
  0018b7f8: 00031040 sll r2,r3,0x01
 
  0018b7f8: 00031040 sll r2,r3,0x01
 
  0018b7fc: 34030196 ori r3,r0,0x0196 default to Charge +1
 
  0018b7fc: 34030196 ori r3,r0,0x0196 default to Charge +1
Line 307: Line 336:
 
  0018b810: 3c018019 lui r1,0x8019
 
  0018b810: 3c018019 lui r1,0x8019
 
  0018b814: a02238e4 sb r2,0x38e4(r1) Store Charge Power boost
 
  0018b814: a02238e4 sb r2,0x38e4(r1) Store Charge Power boost
 +
 +
Attack Jump
 
  0018b818: 3c028019 lui r2,0x8019
 
  0018b818: 3c028019 lui r2,0x8019
 
  0018b81c: 904238ff lbu r2,0x38ff(r2) Load Weapon Characteristics
 
  0018b81c: 904238ff lbu r2,0x38ff(r2) Load Weapon Characteristics
Line 337: Line 368:
 
  0018b888: 340200ff ori r2,r0,0x00ff
 
  0018b888: 340200ff ori r2,r0,0x00ff
 
  0018b88c: 1482000c bne r4,r2,0x0018b8c0 Branch if Left Hand Weapon Does exist
 
  0018b88c: 1482000c bne r4,r2,0x0018b8c0 Branch if Left Hand Weapon Does exist
−
  0018b890: 320200ff andi r2,r16,0x00ff
+
  0018b890: 320200ff andi r2,r16,0x00ff move ability formula into r2
 
  0018b894: 90620020 lbu r2,0x0020(r3) Load Right Hand Weapon
 
  0018b894: 90620020 lbu r2,0x0020(r3) Load Right Hand Weapon
 
  0018b898: 00000000 nop
 
  0018b898: 00000000 nop
 
  0018b89c: 14440008 bne r2,r4,0x0018b8c0 Branch if Right Hand Weapon does exist
 
  0018b89c: 14440008 bne r2,r4,0x0018b8c0 Branch if Right Hand Weapon does exist
−
  0018b8a0: 320200ff andi r2,r16,0x00ff
+
  0018b8a0: 320200ff andi r2,r16,0x00ff move ability formula into r2
−
  0018b8a4: 34020001 ori r2,r0,0x0001
+
  0018b8a4: 34020001 ori r2,r0,0x0001 r2 = 1
 
  0018b8a8: 3c018019 lui r1,0x8019
 
  0018b8a8: 3c018019 lui r1,0x8019
−
  0018b8ac: a02238d9 sb r2,0x38d9(r1) Store Two Hands as active
+
  0018b8ac: a02238d9 sb r2,0x38d9(r1) Store Two Hands as forced
−
  0018b8b0: 08062e30 j 0x0018b8c0
+
  0018b8b0: 08062e30 j 0x0018b8c0 if not using any weapons, use formula 0x1
 
  0018b8b4: 320200ff andi r2,r16,0x00ff Load Ability formula into r2
 
  0018b8b4: 320200ff andi r2,r16,0x00ff Load Ability formula into r2
−
  0018b8b8: 34100001 ori r16,r0,0x0001
+
−
  0018b8bc: 320200ff andi r2,r16,0x00ff Load Ability formula into r2
+
Blank Jump
 +
  0018b8b8: 34100001 ori r16,r0,0x0001 not referred to by any used skillsets
 +
  0018b8bc: 320200ff andi r2,r16,0x00ff Load Ability formula into r2. every skillset refers here after deciding formula
 +
 +
Attack/charge cont.
 
  0018b8c0: 3c018019 lui r1,0x8019
 
  0018b8c0: 3c018019 lui r1,0x8019
 
  0018b8c4: a42038c8 sh r0,0x38c8(r1) Store Spell Proc Ability ID as 0x00
 
  0018b8c4: a42038c8 sh r0,0x38c8(r1) Store Spell Proc Ability ID as 0x00
 
  0018b8c8: 3c018019 lui r1,0x8019
 
  0018b8c8: 3c018019 lui r1,0x8019
−
  0018b8cc: a02038ed sb r0,0x38ed(r1) Zero byte 0x1938ed (but this byte is always either zero or above 0x80, in which this code gets skipped??)
+
  0018b8cc: a02038ed sb r0,0x38ed(r1) Zero post-attack effects (not poach or fall damage?)
−
  0018b8d0: 10400003 beq r2,r0,0x0018b8e0
+
  0018b8d0: 10400003 beq r2,r0,0x0018b8e0 branch if attack formula is 0
−
  0018b8d4: 2c420065 sltiu r2,r2,0x0065
+
  0018b8d4: 2c420065 sltiu r2,r2,0x0065 set r2 to true if formula is less than 0x64
−
  0018b8d8: 14400002 bne r2,r0,0x0018b8e4 If formula is from 0x01 to 0x64, GOTO calculate offset
+
  0018b8d8: 14400002 bne r2,r0,0x0018b8e4 branch if formula is between 0x1 and 0x64 (exclusive)
 
  0018b8dc: 00000000 nop
 
  0018b8dc: 00000000 nop
 
  0018b8e0: 34100001 ori r16,r0,0x0001 r16 = 0x01
 
  0018b8e0: 34100001 ori r16,r0,0x0001 r16 = 0x01
 
  0018b8e4: 3c058019 lui r5,0x8019
 
  0018b8e4: 3c058019 lui r5,0x8019
−
  0018b8e8: 24a538da addiu r5,r5,0x38da Load Weapon Proc
+
  0018b8e8: 24a538da addiu r5,r5,0x38da Load Weapon Proc Location
−
  0018b8ec: 90a70000 lbu r7,0x0000(r5) Load Weapon Proc into r7
+
  0018b8ec: 90a70000 lbu r7,0x0000(r5) Load Weapon Proc
−
  0018b8f0: 321100ff andi r17,r16,0x00ff Load Weapon type into r17
+
  0018b8f0: 321100ff andi r17,r16,0x00ff Load ability formula into r17
 
  0018b8f4: 34020003 ori r2,r0,0x0003 r2 = 0x03
 
  0018b8f4: 34020003 ori r2,r0,0x0003 r2 = 0x03
−
  0018b8f8: 16220002 bne r17,r2,0x0018b904 Branch if Weapon is Gun?
+
  0018b8f8: 16220002 bne r17,r2,0x0018b904 Branch if formula isn't 0x3
−
  0018b8fc: 24a5002c addiu r5,r5,0x002c 0x801938da + 2c
+
  0018b8fc: 24a5002c addiu r5,r5,0x002c 0x801938da + 2c (inflicting status type location)
 
  0018b900: 00003821 addu r7,r0,r0 Clear Weapon Proc ID
 
  0018b900: 00003821 addu r7,r0,r0 Clear Weapon Proc ID
 
  0018b904: 30e200ff andi r2,r7,0x00ff Load Weapon Proc ID into r2
 
  0018b904: 30e200ff andi r2,r7,0x00ff Load Weapon Proc ID into r2
Line 378: Line 413:
 
  0018b92c: 00000000 nop
 
  0018b92c: 00000000 nop
 
  0018b930: 3c018019 lui r1,0x8019
 
  0018b930: 3c018019 lui r1,0x8019
−
  0018b934: a03038e5 sb r16,0x38e5(r1) Store Ability ID
+
  0018b934: a03038e5 sb r16,0x38e5(r1) Store Ability formula
 
  0018b938: 0c063279 jal 0x0018c9e4 [['Reflect', Blade Grasp, and Arrow Guard]]
 
  0018b938: 0c063279 jal 0x0018c9e4 [['Reflect', Blade Grasp, and Arrow Guard]]
 
  0018b93c: 00000000 nop
 
  0018b93c: 00000000 nop
Line 387: Line 422:
 
  0018b950: 00000000 nop
 
  0018b950: 00000000 nop
 
  0018b954: 14400003 bne r2,r0,0x0018b964 Branch if attack hit
 
  0018b954: 14400003 bne r2,r0,0x0018b964 Branch if attack hit
−
  0018b958: 00111080 sll r2,r17,0x02
+
  0018b958: 00111080 sll r2,r17,0x02 Move formula ID * 2 into r2
 
  0018b95c: 08062e77 j 0x0018b9dc Jump to end if Attack Missed
 
  0018b95c: 08062e77 j 0x0018b9dc Jump to end if Attack Missed
 
  0018b960: 34020001 ori r2,r0,0x0001 r2 = 0x01
 
  0018b960: 34020001 ori r2,r0,0x0001 r2 = 0x01
Line 394: Line 429:
 
  0018b96c: 8c22f610 lw r2,-0x09f0(r1) Load Formula Table
 
  0018b96c: 8c22f610 lw r2,-0x09f0(r1) Load Formula Table
 
  0018b970: 00000000 nop
 
  0018b970: 00000000 nop
−
  0018b974: 0040f809 jalr r2,r31
+
  0018b974: 0040f809 jalr r2,r31 Jumps to appropriate formula [[Formulas]]
 
  0018b978: 00000000 nop
 
  0018b978: 00000000 nop
 
  0018b97c: 2e220007 sltiu r2,r17,0x0007
 
  0018b97c: 2e220007 sltiu r2,r17,0x0007
−
  0018b980: 10400004 beq r2,r0,0x0018b994 Branch in Formula > 0x06
+
  0018b980: 10400004 beq r2,r0,0x0018b994 Branch if Formula > 0x06
 
  0018b984: 34020064 ori r2,r0,0x0064 r2 = 0x64
 
  0018b984: 34020064 ori r2,r0,0x0064 r2 = 0x64
 
  0018b988: 0c061f28 jal 0x00187ca0 [[Formula 01 - 06 Aftermath]]
 
  0018b988: 0c061f28 jal 0x00187ca0 [[Formula 01 - 06 Aftermath]]

Revision as of 05:02, 24 April 2021

Pre Formula Setup (FDC)
0018b34c: 27bdffc8 addiu r29,r29,0xffc8		
0018b350: afb00028 sw r16,0x0028(r29)		
0018b354: 00a08021 addu r16,r5,r0		
0018b358: 27a50010 addiu r5,r29,0x0010		
0018b35c: afbf0034 sw r31,0x0034(r29)		
0018b360: afb20030 sw r18,0x0030(r29)		
0018b364: 0c01788b jal 0x0005e22c		Transfer Target ID? Through Mount Data
0018b368: afb1002c sw r17,0x002c(r29)		
0018b36c: 3c018019 lui r1,0x8019		
0018b370: a03038c1 sb r16,0x38c1(r1)		Store ID of the defending unit
0018b374: 321000ff andi r16,r16,0x00ff		
0018b378: 001010c0 sll r2,r16,0x03		r2 = Defender ID * 0x8
0018b37c: 00501023 subu r2,r2,r16		r2 = defender ID * 0x7
0018b380: 00021180 sll r2,r2,0x06		r2 = defender ID * 0x1c0
0018b384: 3c048019 lui r4,0x8019		
0018b388: 248408cc addiu r4,r4,0x08cc		Load Unit Data
0018b38c: 00441821 addu r3,r2,r4		r3 = start of unit data + Defender battle ID * 0x1c0
0018b390: 3c018019 lui r1,0x8019		
0018b394: ac232d98 sw r3,0x2d98(r1)		Store Defender's Data Location
0018b398: 2483018c addiu r3,r4,0x018c		Start of unit data + 0x018c (current action data)
0018b39c: 00431021 addu r2,r2,r3		Current action data + 0x01c0 (defenders current action data)
0018b3a0: 93a30010 lbu r3,0x0010(r29)		Load attackers unit ID from stack
0018b3a4: 3c018019 lui r1,0x8019		
0018b3a8: ac222d90 sw r2,0x2d90(r1)		Store Defender's Current Action Data
0018b3ac: 3c028019 lui r2,0x8019		
0018b3b0: 244238c0 addiu r2,r2,0x38c0		Load Attacker's Unit ID location
0018b3b4: 3c018019 lui r1,0x8019		
0018b3b8: a020390e sb r0,0x390e(r1)		Store formula as 0x00
0018b3bc: a0430000 sb r3,0x0000(r2)		Store ID of the attacking unit
0018b3c0: 90430000 lbu r3,0x0000(r2)		Load ID of the attacking unit (really?)
0018b3c4: 3c028019 lui r2,0x8019		
0018b3c8: 24422da0 addiu r2,r2,0x2da0		r2 = 0x80192da0 (copy of attacker action data?)
0018b3cc: 3c018019 lui r1,0x8019		
0018b3d0: ac222d8c sw r2,0x2d8c(r1)		Store 0x80192da0 into attacker action data
0018b3d4: 000310c0 sll r2,r3,0x03		attacking Unit ID * 0x8
0018b3d8: 00431023 subu r2,r2,r3		Attacking unit ID * 0x7
0018b3dc: 00021180 sll r2,r2,0x06		Attacking unit ID * 0x1c0
0018b3e0: 3c038019 lui r3,0x8019		
0018b3e4: 8c63f5f0 lw r3,-0x0a10(r3)		Loads type of action (word)
0018b3e8: 00441021 addu r2,r2,r4		Attacker data location
0018b3ec: 3c018019 lui r1,0x8019		
0018b3f0: ac222d94 sw r2,0x2d94(r1)		Store Attacker's Data
0018b3f4: 10600009 beq r3,r0,0x0018b41c	Branch if attack is initial / preview (not reacting)
0018b3f8: 00000000 nop				
0018b3fc: 0c062bcb jal 0x0018af2c		Perform reaction abilities
0018b400: 00000000 nop				
0018b404: 10400005 beq r2,r0,0x0018b41c	Branch if Reaction failed
0018b408: 00000000 nop				
0018b40c: 0c062c9d jal 0x0018b274		Store used weapon ID, modified by action menu ID
0018b410: 27a40010 addiu r4,r29,0x0010		makes r4 a stack pointer for above
0018b414: 08062e77 j 0x0018b9dc		Goto End
0018b418: 00001021 addu r2,r0,r0		r2 = 0
0018b41c: 3c028019 lui r2,0x8019		
0018b420: 904238ed lbu r2,0x38ed(r2)		Load can poach/post action byte
0018b424: 00000000 nop				
0018b428: 30420080 andi r2,r2,0x0080		
0018b42c: 10400005 beq r2,r0,0x0018b444	Branch if attack is not fall damage
0018b430: 00000000 nop				
0018b434: 0c062b8f jal 0x0018ae3c		Knockback? - Fall Damage
0018b438: 00000000 nop				
0018b43c: 08062e77 j 0x0018b9dc		Jump to end
0018b440: 00001021 addu r2,r0,r0		r2 = 0x00
0018b444: 3c048019 lui r4,0x8019		
0018b448: 8c842d98 lw r4,0x2d98(r4)		Load Defender's Data
0018b44c: 0c060428 jal 0x001810a0		Map Location Calculation
0018b450: 00000000 nop				
0018b454: 000210c0 sll r2,r2,0x03		
0018b458: 3c018019 lui r1,0x8019		
0018b45c: 00220821 addu r1,r1,r2		
0018b460: 9022f8cc lbu r2,-0x0734(r1)		Load Tile Data
0018b464: 3c038019 lui r3,0x8019		
0018b468: 906338c3 lbu r3,0x38c3(r3)		Load Weapon Hand (0 = R, 1 = L)
0018b46c: 3042003f andi r2,r2,0x003f		Filter out terrain type
0018b470: 3c018019 lui r1,0x8019		
0018b474: a02238cd sb r2,0x38cd(r1)		Store terrain type
0018b478: 14600005 bne r3,r0,0x0018b490	Branch if Weapon is in left hand
0018b47c: 00000000 nop				
0018b480: 3c078019 lui r7,0x8019		
0018b484: 90e738c4 lbu r7,0x38c4(r7)		Load Right Arm Equip ID
0018b488: 08062d26 j 0x0018b498		
0018b48c: 00000000 nop				
0018b490: 3c078019 lui r7,0x8019		
0018b494: 90e738c5 lbu r7,0x38c5(r7)		Load Left Arm Equip ID
0018b498: 93a30011 lbu r3,0x0011(r29)		Load equipment ID type
0018b49c: 34020013 ori r2,r0,0x0013		r2 = 0x13
0018b4a0: 14620004 bne r3,r2,0x0018b4b4		Branch if weapon is not a shield
0018b4a4: 30e200ff andi r2,r7,0x00ff		moves Item ID to r2
0018b4a8: 93a70018 lbu r7,0x0018(r29)		
0018b4ac: 00000000 nop				
0018b4b0: 30e200ff andi r2,r7,0x00ff		
0018b4b4: 2c420080 sltiu r2,r2,0x0080		
0018b4b8: 14400002 bne r2,r0,0x0018b4c4		this is some kind of check, but i can't figure out what for. shield ev%?
0018b4bc: 00000000 nop				
0018b4c0: 00003821 addu r7,r0,r0		If equipment was a shield, Weapon ID = 0
0018b4c4: 97a30012 lhu r3,0x0012(r29)		
0018b4c8: 3c108019 lui r16,0x8019		
0018b4cc: 261038d8 addiu r16,r16,0x38d8		Load Spell Proc Ability ID
0018b4d0: a2070000 sb r7,0x0000(r16)		Store Weapon ID
0018b4d4: 3c018019 lui r1,0x8019		
0018b4d8: a42338d6 sh r3,0x38d6(r1)		Store Used Ability ID
0018b4dc: 3c028019 lui r2,0x8019		
0018b4e0: 944238d6 lhu r2,0x38d6(r2)		Load Used Ability ID (pointless and sucky)
0018b4e4: 3c018019 lui r1,0x8019		
0018b4e8: a02038d9 sb r0,0x38d9(r1)		Store Two Hands as inactive
0018b4ec: 2c420171 sltiu r2,r2,0x0171		
0018b4f0: 14400002 bne r2,r0,0x0018b4fc	If Ability ID < Hi-Potion, go get ability pointer
0018b4f4: 26050018 addiu r5,r16,0x0018		
0018b4f8: 00001821 addu r3,r0,r0		load the pointer of first attack
0018b4fc: 000320c0 sll r4,r3,0x03		Used Ability ID * 8
0018b500: 00832023 subu r4,r4,r3		Used Ability ID * 7
0018b504: 00042040 sll r4,r4,0x01		Used Ability ID * 14 (if ability ID >= Hi potion, r4 = 0)
0018b508: 3c028006 lui r2,0x8006		
0018b50c: 2442fbf0 addiu r2,r2,0xfbf0		Load Ability Data
0018b510: 00822021 addu r4,r4,r2		Get Used Ability ID Data
0018b514: 3406000e ori r6,r0,0x000e		r6 = 0x0e
0018b518: 30e200ff andi r2,r7,0x00ff		Transfer Weapon ID to r2
0018b51c: 000210c0 sll r2,r2,0x03		Weapon ID * 8
0018b520: 3c038006 lui r3,0x8006		
0018b524: 24633ab8 addiu r3,r3,0x3ab8		Load Weapon Secondary Data
0018b528: 0c017895 jal 0x0005e254		Store X Byte into Y - Store ability data into 0x1938f0
0018b52c: 00438821 addu r17,r2,r3		0x80063ab8 + Weapon ID * 8
0018b530: 02202021 addu r4,r17,r0		r4 = 0x80063ab8 + Weapon ID * 8
0018b534: 26050026 addiu r5,r16,0x0026		
0018b538: 0c017895 jal 0x0005e254		Store X Byte into Y - Store Weapon Data into 0x1938fe-905
0018b53c: 34060008 ori r6,r0,0x0008		r6 = 0x08
0018b540: 92240007 lbu r4,0x0007(r17)		Load Inflict Status/Cast Spell ID from Weapon
0018b544: 3c038019 lui r3,0x8019		
0018b548: 8c632d94 lw r3,0x2d94(r3)		Load Attacker Data
0018b54c: 34020001 ori r2,r0,0x0001		R2 = 1
0018b550: 3c018019 lui r1,0x8019		
0018b554: a02038e4 sb r0,0x38e4(r1)		Store Charge Power as 0?
0018b558: 3c018019 lui r1,0x8019		
0018b55c: a02238e5 sb r2,0x38e5(r1)		Store Ability Formula
0018b560: 3c018019 lui r1,0x8019		
0018b564: a02438da sb r4,0x38da(r1)		Store Weapon Proc
0018b568: 90620026 lbu r2,0x0026(r3)		Load Attacker's Faith
0018b56c: 3c038019 lui r3,0x8019		
0018b570: 8c632d98 lw r3,0x2d98(r3)		Load Defender Data
0018b574: 3c018019 lui r1,0x8019		
0018b578: a02238d3 sb r2,0x38d3(r1)		Store Attacker's Faith
0018b57c: 90620026 lbu r2,0x0026(r3)		Load Defender's Faith
0018b580: 3c018019 lui r1,0x8019		
0018b584: a02238d2 sb r2,0x38d2(r1)		Store Defender's Faith
0018b588: 0c062b7d jal 0x0018adf4		Action data nulling
0018b58c: 00000000 nop				
0018b590: 93a20011 lbu r2,0x0011(r29)		
0018b594: 3c038019 lui r3,0x8019		
0018b598: 946338c8 lhu r3,0x38c8(r3)		r3 = 0x1 if spell proc is true, and 0x0 otherwise
0018b59c: 3c018019 lui r1,0x8019		
0018b5a0: a02238d4 sb r2,0x38d4(r1)		Store Action Menu ID (put a read on this location to find hard-coded???)
0018b5a4: 304200ff andi r2,r2,0x00ff		
0018b5a8: 3c018006 lui r1,0x8006		
0018b5ac: 00220821 addu r1,r1,r2		
0018b5b0: 90325cb4 lbu r18,0x5cb4(r1)		Load Action Menu into r18
0018b5b4: 10600009 beq r3,r0,0x0018b5dc		Branch if Weapon Proc failed
0018b5b8: 00000000 nop				
0018b5bc: 3c028019 lui r2,0x8019		
0018b5c0: 944238c6 lhu r2,0x38c6(r2)		Load ??? (reaction ID? this halfword seems to handle all post-attack results...)
0018b5c4: 00000000 nop				
0018b5c8: a7a20012 sh r2,0x0012(r29)		If Spell proc is true, store proc ID as used ability ID (temporary) 
0018b5cc: 3c018019 lui r1,0x8019		
0018b5d0: a42238d6 sh r2,0x38d6(r1)		Store Spell Proc ID as Used Ability ID
0018b5d4: 08062d79 j 0x0018b5e4			
0018b5d8: 00009021 addu r18,r0,r0		Clear Action Menu ID
0018b5dc: 3c018019 lui r1,0x8019		
0018b5e0: a42038c6 sh r0,0x38c6(r1)		Store ??? as 0x00 (reaction ID?)
0018b5e4: 87a30012 lh r3,0x0012(r29)		
0018b5e8: 3c028006 lui r2,0x8006		
0018b5ec: 2442ebf0 addiu r2,r2,0xebf0		Load first set of Ability Data 
0018b5f0: 000318c0 sll r3,r3,0x03		r3 * 8
0018b5f4: 00621821 addu r3,r3,r2		0x8006ebf0 + r3 * 8
0018b5f8: 90620004 lbu r2,0x0004(r3)		Load first set of AI Flags
0018b5fc: 3c048019 lui r4,0x8019		
0018b600: 8c842d90 lw r4,0x2d90(r4)		Load Defender Current Action Data
0018b604: 30420003 andi r2,r2,0x0003		
0018b608: a0820018 sb r2,0x0018(r4)		Store Abilities AI Target Enemies/Allies into 0x18 of Current Action Data (positive spells 'miss,' negative spells are 'guarded'!)
0018b60c: 90620007 lbu r2,0x0007(r3)		Load fourth set of combo AI/non AI flags (ai flags 4)
0018b610: 00000000 nop				
0018b614: 30420001 andi r2,r2,0x0001		
0018b618: 10400009 beq r2,r0,0x0018b640		Branch if ability does not evade with motion
0018b61c: 324300ff andi r3,r18,0x00ff		Load Action Menu ID into r3
0018b620: 3c038019 lui r3,0x8019		
0018b624: 8c632d90 lw r3,0x2d90(r3)		Load Defender Current Action Data
0018b628: 00000000 nop				
0018b62c: 90620018 lbu r2,0x0018(r3)		Load 'missed' or 'guarded' byte (positive attack vs negative attack)
0018b630: 00000000 nop				
0018b634: 24420080 addiu r2,r2,0x0080		if ability evades with motion, animate miss
0018b638: a0620018 sb r2,0x0018(r3)		store new animate on miss
0018b63c: 324300ff andi r3,r18,0x00ff		Load Action Menu ID into r3
0018b640: 34020007 ori r2,r0,0x0007		r2 0x07
0018b644: 14620006 bne r3,r2,0x0018b660		Branch if Action Menu ID != Draw Out
0018b648: 2c62000b sltiu r2,r3,0x000b		sets true if action menu is not Defend or Equip Change
0018b64c: 93a20018 lbu r2,0x0018(r29)		
0018b650: 00000000 nop				
0018b654: 24420026 addiu r2,r2,0x0026		
0018b658: a7a20012 sh r2,0x0012(r29)		temporary ability ID is assigned 0x26?
0018b65c: 2c62000b sltiu r2,r3,0x000b		sets true if action menu is not defend or equip change
0018b660: 10400095 beq r2,r0,0x0018b8b8		Branch if Action Menu Type is defend or equip change; weapon formula = 0x01
0018b664: 00031080 sll r2,r3,0x02		r2 = action menu * 4 (word)
0018b668: 3c018017 lui r1,0x8017		
0018b66c: 00220821 addu r1,r1,r2		
0018b670: 8c224344 lw r2,0x4344(r1)		Load return addresses for skillsets
							Default: 0x8018b694
							Item   : 0x8018b76c
							Throw  : 0x8018b7d4
							Math   : 0x8018b694
							Geo    : 0x8018b680
							blank  : 0x8018b8b8
							Monster: 0x8018b694
							Katana : 0x8018b694
							Attack : 0x8018b818
							Jump   : 0x8018b7dc
							Charge : 0x8018b7e4
						Menus past this point are ignored by the above branch, and likely just jump to garbage data. they are included regardless as a warning
							Defend : 0x27bdffe8
							Equip  : 0xafbf0010
							Unknown: 0x0c063998
							Blank  : 0x00000000
							Unknown: 0x00401821
0018b674: 00000000 nop				
0018b678: 00400008 jr r2			jump to location specified by the above table
0018b67c: 00000000 nop				

Geomancy  jump
0018b680: 3c048019 lui r4,0x8019		
0018b684: 8c842d94 lw r4,0x2d94(r4)		Load Attacker Data
0018b688: 0c05fcb6 jal 0x0017f2d8		Get Elemental Ability ID ELEMENTAL terrain to skill hard-coding
0018b68c: 00000000 nop				
0018b690: a7a20012 sh r2,0x0012(r29)		save ability ID to temp

Default, Math, Monster, Katana jump
0018b694: 87a20012 lh r2,0x0012(r29)		Load it again
0018b698: 00000000 nop				
0018b69c: 28420171 slti r2,r2,0x0171		set true if ability ID is not hardcoded (except for potion apparently, likely a number typo in the original code)
0018b6a0: 10400086 beq r2,r0,0x0018b8bc		Branch if Ability ID > 171 (Hi-Potion? Not Potion?)
0018b6a4: 34100001 ori r16,r0,0x0001		r16 = 0x01
0018b6a8: 3c028019 lui r2,0x8019		
0018b6ac: 8c422d94 lw r2,0x2d94(r2)		Load Attacker Data
0018b6b0: 00000000 nop				
0018b6b4: 9042005a lbu r2,0x005a(r2)		Load third set of Current Status
0018b6b8: 00000000 nop				
0018b6bc: 30420002 andi r2,r2,0x0002		
0018b6c0: 1040000d beq r2,r0,0x0018b6f8		Branch if unit is not a frog (stupid check. frogs can't use geomancy :()
0018b6c4: 00000000 nop				
0018b6c8: 3c058019 lui r5,0x8019		
0018b6cc: 24a538c8 addiu r5,r5,0x38c8		Load Spell Proc Ability ID
0018b6d0: 94a20000 lhu r2,0x0000(r5)		Load Spell Proc Ability ID into r2
0018b6d4: 00000000 nop				
0018b6d8: 14400007 bne r2,r0,0x0018b6f8		Branch if spell proc is true (Check is redundant)
0018b6dc: 24a50036 addiu r5,r5,0x0036		0x801938c8 + 0x36 (weapon range location)
0018b6e0: 3c018019 lui r1,0x8019		
0018b6e4: a02038d8 sb r0,0x38d8(r1)		If frogged and no spell proc, store Used Weapon ID as 0x00
0018b6e8: 3c048006 lui r4,0x8006		
0018b6ec: 24843ab8 addiu r4,r4,0x3ab8		Load Weapon Secondary Data
0018b6f0: 0c017895 jal 0x0005e254		Store X Byte into Y Store data for the null weapon (fists) into 0x801938fe - 0x80193905
0018b6f4: 34060008 ori r6,r0,0x0008		r6 = 0x08 (limit)
0018b6f8: 3c058019 lui r5,0x8019		
0018b6fc: 24a538f0 addiu r5,r5,0x38f0		Load Ability Range
0018b700: 87a20012 lh r2,0x0012(r29)		Load Used Ability ID?
0018b704: 3406000e ori r6,r0,0x000e		r6 = 0x0e (limit for 0x8018b720)
0018b708: 000280c0 sll r16,r2,0x03		ID * 8
0018b70c: 02028023 subu r16,r16,r2		ID * 7
0018b710: 00108040 sll r16,r16,0x01		ID * 14
0018b714: 3c028006 lui r2,0x8006		
0018b718: 2442fbf0 addiu r2,r2,0xfbf0		
0018b71c: 02028021 addu r16,r16,r2		r16 = ability data 2 location for ability ID
0018b720: 0c017895 jal 0x0005e254		Store X Byte into Y Store ability data into 0x801938f0 - 0x801938fd
0018b724: 02002021 addu r4,r16,r0		Load 0x8006fbf0 + ID * 14 into r4
0018b728: 9202000b lbu r2,0x000b(r16)		Load Inflict Status ID
0018b72c: 3c018019 lui r1,0x8019		
0018b730: a02238da sb r2,0x38da(r1)		Store status proc from spell
0018b734: 3c028019 lui r2,0x8019		
0018b738: 904238f3 lbu r2,0x38f3(r2)		Load first set of Ability Flags
0018b73c: 92100008 lbu r16,0x0008(r16)		Load Ability Formula
0018b740: 30420024 andi r2,r2,0x0024		
0018b744: 1440005e bne r2,r0,0x0018b8c0		Branch if Weapon Range or Weapon Strike to get formula address, using the spell's formula
0018b748: 320200ff andi r2,r16,0x00ff
0018b74c: 324300ff andi r3,r18,0x00ff		Load Action Menu into r3
0018b750: 34020007 ori r2,r0,0x0007		r2 = 0x07
0018b754: 1062005a beq r3,r2,0x0018b8c0		Branch if Action Menu = Draw Out
0018b758: 320200ff andi r2,r16,0x00ff		Load Ability Formula into r16
0018b75c: 3c018019 lui r1,0x8019		
0018b760: a02038d8 sb r0,0x38d8(r1)		Store Used Weapon ID as 0x00
0018b764: 08062e2f j 0x0018b8bc			
0018b768: 00000000 nop				

Item Jump
0018b76c: 93a70018 lbu r7,0x0018(r29)		
0018b770: 00000000 nop
0018b774: 2ce200f0 sltiu r2,r7,0x00f0		
0018b778: 14400050 bne r2,r0,0x0018b8bc		Branch if ITEM command not used (?)
0018b77c: 34100001 ori r16,r0,0x0001		r16 = 0x01
0018b780: 3c048019 lui r4,0x8019		
0018b784: 248438d8 addiu r4,r4,0x38d8		Load Used Weapon ID location
0018b788: a0870000 sb r7,0x0000(r4)		Save used weapon ID
0018b78c: 24e70010 addiu r7,r7,0x0010		Used Weapon ID + 0x10
0018b790: 24840018 addiu r4,r4,0x0018		Used Weapon ID + 0x18
0018b794: 30e200ff andi r2,r7,0x00ff		Move Used Weapon ID + 0x10 into R2
0018b798: 00028040 sll r16,r2,0x01		r16 = 2*ID + 0x20
0018b79c: 02028021 addu r16,r16,r2		r16 = 3*ID + 0x30
0018b7a0: 3c028006 lui r2,0x8006		
0018b7a4: 24423f98 addiu r2,r2,0x3f98		Load Item Secondary Data (For ITEM)
0018b7a8: 02028021 addu r16,r16,r2		r16 = 80062f98 + 3*ID + 0x30
0018b7ac: 3c018019 lui r1,0x8019		
0018b7b0: a02738db sb r7,0x38db(r1)		Store Consumed Item ID
0018b7b4: 92020002 lbu r2,0x0002(r16)		Load Item's inflicted Status
0018b7b8: 3c018019 lui r1,0x8019		
0018b7bc: a02238da sb r2,0x38da(r1)		Store status proc of item
0018b7c0: 0c017991 jal 0x0005e644		Data Nullifying
0018b7c4: 3405000e ori r5,r0,0x000e		r5 = 0x0e (limit)
0018b7c8: 92100000 lbu r16,0x0000(r16)		Load Item formula
0018b7cc: 08062e30 j 0x0018b8c0			Get formula address of item formula
0018b7d0: 320200ff andi r2,r16,0x00ff		

Throw Jump
0018b7d4: 08062e2f j 0x0018b8bc			Get formula address with formula = 0x63
0018b7d8: 34100063 ori r16,r0,0x0063		

Jump Jump
0018b7dc: 08062e2f j 0x0018b8bc			Get formula address with formula = 0x64
0018b7e0: 34100064 ori r16,r0,0x0064		

Charge Jump
0018b7e4: 97a30012 lhu r3,0x0012(r29)		Loads ability ID?
0018b7e8: 00000000 nop
0018b7ec: 2462fe6a addiu r2,r3,0xfe6a		ability ID - 196
0018b7f0: 2c420008 sltiu r2,r2,0x0008		set true if ability ID - 196 is less than 8
0018b7f4: 14400003 bne r2,r0,0x0018b804		Branch if skill is CHARGE
0018b7f8: 00031040 sll r2,r3,0x01		
0018b7fc: 34030196 ori r3,r0,0x0196		default to Charge +1
0018b800: 00031040 sll r2,r3,0x01		
0018b804: 3c018006 lui r1,0x8006		
0018b808: 00220821 addu r1,r1,r2		
0018b80c: 90220d19 lbu r2,0x0d19(r1)		Load Charge Power boost
0018b810: 3c018019 lui r1,0x8019		
0018b814: a02238e4 sb r2,0x38e4(r1)		Store Charge Power boost

Attack Jump
0018b818: 3c028019 lui r2,0x8019		
0018b81c: 904238ff lbu r2,0x38ff(r2)		Load Weapon Characteristics
0018b820: 92300002 lbu r16,0x0002(r17)		
0018b824: 30420004 andi r2,r2,0x0004		
0018b828: 10400025 beq r2,r0,0x0018b8c0	Branch if 2h is not active
0018b82c: 320200ff andi r2,r16,0x00ff		
0018b830: 3c038019 lui r3,0x8019		
0018b834: 8c632d94 lw r3,0x2d94(r3)		Load Attacker's Data
0018b838: 00000000 nop				
0018b83c: 90620091 lbu r2,0x0091(r3)		Load third set of support
0018b840: 00000000 nop				
0018b844: 30420002 andi r2,r2,0x0002		
0018b848: 1040001c beq r2,r0,0x0018b8bc	Branch if not using Two Hands
0018b84c: 340200ff ori r2,r0,0x00ff		r2 = 0xff
0018b850: 9064001d lbu r4,0x001d(r3)		Load Right Hand Weapon
0018b854: 00000000 nop				
0018b858: 14820009 bne r4,r2,0x0018b880	Branch if Right hand weapon exists
0018b85c: 00000000 nop				
0018b860: 9062001e lbu r2,0x001e(r3)		Load Left Hand Weapon
0018b864: 00000000 nop
0018b868: 14440005 bne r2,r4,0x0018b880	branch if Left hand weapon Exists	
0018b86c: 34020001 ori r2,r0,0x0001		
0018b870: 3c018019 lui r1,0x8019		
0018b874: a02238d9 sb r2,0x38d9(r1)		Store Two Hands as active
0018b878: 3c038019 lui r3,0x8019		
0018b87c: 8c632d94 lw r3,0x2d94(r3)		Load Attacker's Data
0018b880: 00000000 nop				
0018b884: 9064001f lbu r4,0x001f(r3)		Load Left Hand Weapon
0018b888: 340200ff ori r2,r0,0x00ff		
0018b88c: 1482000c bne r4,r2,0x0018b8c0	Branch if Left Hand Weapon Does exist
0018b890: 320200ff andi r2,r16,0x00ff		move ability formula into r2
0018b894: 90620020 lbu r2,0x0020(r3)		Load Right Hand Weapon
0018b898: 00000000 nop				
0018b89c: 14440008 bne r2,r4,0x0018b8c0	Branch if Right Hand Weapon does exist
0018b8a0: 320200ff andi r2,r16,0x00ff		move ability formula into r2
0018b8a4: 34020001 ori r2,r0,0x0001		r2 = 1
0018b8a8: 3c018019 lui r1,0x8019		
0018b8ac: a02238d9 sb r2,0x38d9(r1)		Store Two Hands as forced
0018b8b0: 08062e30 j 0x0018b8c0			if not using any weapons, use formula 0x1
0018b8b4: 320200ff andi r2,r16,0x00ff		Load Ability formula into r2

Blank Jump
0018b8b8: 34100001 ori r16,r0,0x0001		not referred to by any used skillsets
0018b8bc: 320200ff andi r2,r16,0x00ff		Load Ability formula into r2. every skillset refers here after deciding formula

Attack/charge cont.
0018b8c0: 3c018019 lui r1,0x8019		
0018b8c4: a42038c8 sh r0,0x38c8(r1)		Store Spell Proc Ability ID as 0x00
0018b8c8: 3c018019 lui r1,0x8019		
0018b8cc: a02038ed sb r0,0x38ed(r1)		Zero post-attack effects (not poach or fall damage?)
0018b8d0: 10400003 beq r2,r0,0x0018b8e0		branch if attack formula is 0
0018b8d4: 2c420065 sltiu r2,r2,0x0065		set r2 to true if formula is less than 0x64
0018b8d8: 14400002 bne r2,r0,0x0018b8e4		branch if formula is between 0x1 and 0x64 (exclusive) 
0018b8dc: 00000000 nop
0018b8e0: 34100001 ori r16,r0,0x0001		r16 = 0x01
0018b8e4: 3c058019 lui r5,0x8019		
0018b8e8: 24a538da addiu r5,r5,0x38da		Load Weapon Proc Location
0018b8ec: 90a70000 lbu r7,0x0000(r5)		Load Weapon Proc
0018b8f0: 321100ff andi r17,r16,0x00ff		Load ability formula into r17
0018b8f4: 34020003 ori r2,r0,0x0003		r2 = 0x03
0018b8f8: 16220002 bne r17,r2,0x0018b904	Branch if formula isn't 0x3
0018b8fc: 24a5002c addiu r5,r5,0x002c		0x801938da + 2c (inflicting status type location)
0018b900: 00003821 addu r7,r0,r0		Clear Weapon Proc ID
0018b904: 30e200ff andi r2,r7,0x00ff		Load Weapon Proc ID into r2
0018b908: 00022040 sll r4,r2,0x01		ID * 2
0018b90c: 00822021 addu r4,r4,r2		ID * 3
0018b910: 00042040 sll r4,r4,0x01		ID * 6
0018b914: 3c028006 lui r2,0x8006		
0018b918: 24423fc4 addiu r2,r2,0x3fc4		Load Inflict Status
0018b91c: 00822021 addu r4,r4,r2		
0018b920: 0c017895 jal 0x0005e254		Store X Byte into Y - Store Status information at 0x80193906 - 0x8019390b
0018b924: 34060006 ori r6,r0,0x0006		r6 = 0x06 (limit for above)
0018b928: 0c062e7e jal 0x0018b9f8		Remove Status 
0018b92c: 00000000 nop				
0018b930: 3c018019 lui r1,0x8019		
0018b934: a03038e5 sb r16,0x38e5(r1)		Store Ability formula
0018b938: 0c063279 jal 0x0018c9e4		'Reflect', Blade Grasp, and Arrow Guard
0018b93c: 00000000 nop				
0018b940: 3c028019 lui r2,0x8019		
0018b944: 8c422d90 lw r2,0x2d90(r2)		Load Defender Current Action Data
0018b948: 00000000 nop				
0018b94c: 90420000 lbu r2,0x0000(r2)		Load Hit Flag
0018b950: 00000000 nop				
0018b954: 14400003 bne r2,r0,0x0018b964		Branch if attack hit
0018b958: 00111080 sll r2,r17,0x02		Move formula ID * 2 into r2
0018b95c: 08062e77 j 0x0018b9dc			Jump to end if Attack Missed
0018b960: 34020001 ori r2,r0,0x0001		r2 = 0x01
0018b964: 3c018019 lui r1,0x8019		
0018b968: 00220821 addu r1,r1,r2		
0018b96c: 8c22f610 lw r2,-0x09f0(r1)		Load Formula Table
0018b970: 00000000 nop				
0018b974: 0040f809 jalr r2,r31			Jumps to appropriate formula Formulas
0018b978: 00000000 nop				
0018b97c: 2e220007 sltiu r2,r17,0x0007		
0018b980: 10400004 beq r2,r0,0x0018b994		Branch if Formula > 0x06
0018b984: 34020064 ori r2,r0,0x0064		r2 = 0x64
0018b988: 0c061f28 jal 0x00187ca0		Formula 01 - 06 Aftermath
0018b98c: 00000000 nop				
0018b990: 34020064 ori r2,r0,0x0064		r2 = 0x64
0018b994: 16220003 bne r17,r2,0x0018b9a4	Branch if Formula ID =/= 0x64
0018b998: 00000000 nop				
0018b99c: 3c018019 lui r1,0x8019		
0018b9a0: a02038d8 sb r0,0x38d8(r1)		Load Used Weapon ID
0018b9a4: 0c062e91 jal 0x0018ba44		Set some data for current attack
0018b9a8: 00000000 nop				
0018b9ac: 3c038019 lui r3,0x8019		
0018b9b0: 8c632d90 lw r3,0x2d90(r3)		Load Defender Current Action Data
0018b9b4: 00000000 nop
0018b9b8: 94620010 lhu r2,0x0010(r3)		Load Special Action Flags
0018b9bc: 00000000 nop				
0018b9c0: 10400006 beq r2,r0,0x0018b9dc		Branch if no Special Flags are active
0018b9c4: 00001021 addu r2,r0,r0		r2 = 0x00 (why are we setting r2 to 0 if we're branch if its already 0?)
0018b9c8: 90620025 lbu r2,0x0025(r3)		Load attack-type
0018b9cc: 00000000 nop				
0018b9d0: 34420001 ori r2,r2,0x0001		r2 = 0x01
0018b9d4: a0620025 sb r2,0x0025(r3)		Store attack-type as Pseudo-Status change
0018b9d8: 00001021 addu r2,r0,r0		r2 = 0x00
0018b9dc: 8fbf0034 lw r31,0x0034(r29)		
0018b9e0: 8fb20030 lw r18,0x0030(r29)		
0018b9e4: 8fb1002c lw r17,0x002c(r29)		
0018b9e8: 8fb00028 lw r16,0x0028(r29)		
0018b9ec: 27bd0038 addiu r29,r29,0x0038		
0018b9f0: 03e00008 jr r31			
0018b9f4: 00000000 nop

Return Locations:

0017d0bc: Main ability loading routine?
0017f284: Calculate Projected Action Effect
0018ada8: Double WP if two hands is equipped?
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