Usable Ability Setting
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BATTLE.BIN : Usable Ability Setting ----------------------------------------------------------------------------------- Parameters - r4 : Unit ID r5 : Skillset ID r6 : Ability counter (offset in Unit's AI list of move - 0x8019f3c4 - 0x0ef0) Returns - r2 : Updated ability counter (r6) Check if abilities are known, and/or usable (MP, Faith, Sword, Materia blade) **Hacked by ARH** ----------------------------------------------------------------------------------- 0019a5f8: 27bdffb8 addiu r29,r29,-0x0048 | 0019a5fc: afb60038 sw r22,0x0038(r29) | 0019a600: 0080b021 addu r22,r4,r0 |r22 = Unit's ID 0019a604: afb40030 sw r20,0x0030(r29) | 0019a608: 00a0a021 addu r20,r5,r0 |r20 = Unit's Skillset 0019a60c: afb3002c sw r19,0x002c(r29) | 0019a610: 00c09821 addu r19,r6,r0 |r19 = Counter 0019a614: afbf0044 sw r31,0x0044(r29) | 0019a618: afbe0040 sw r30,0x0040(r29) | 0019a61c: afb7003c sw r23,0x003c(r29) | 0019a620: afb50034 sw r21,0x0034(r29) | 0019a624: afb20028 sw r18,0x0028(r29) | 0019a628: afb10024 sw r17,0x0024(r29) | 0019a62c: 16800010 bne r20,r0,0x0019a670 #Branch to Main section If Skillset <> 0x00 0019a630: afb00020 sw r16,0x0020(r29) | 0019a634: 08066a87 j 0x0019aa1c >>Jump to END If skillset = 0x00 0019a638: 02601021 addu r2,r19,r0 |returns counter ---- Weapon inventory known ability section (backward branch…) ---- 0019a63c: 00121100 sll r2,r18,0x04 |Battle ID * 0x10 Unit's ID * 0x400 0019a640: 00521021 addu r2,r2,r18 |ID * 0x11 Shuriken Counter = 0 0019a644: 000210c0 sll r2,r2,0x03 |ID * 0x88 (unit offset) Battle ID * 0x10 0019a648: 24420ef0 addiu r2,r2,0x0ef0 |ID * 0x88 + 0xef0 (Unit offset + Move List offset) ID * 0x11 0019a64c: 3c08801a lui r8,0x801a |ID * 0x88 (unit offset) 0019a650: 2508f3c4 addiu r8,r8,-0xc3c |0x8019f3c4 ID * 0x88 + 0xef0 (Unit offset + Move List offset) 0019a654: 01021021 addu r2,r8,r2 |Unit Move list pointer 0019a658: 00131880 sll r3,r19,0x02 |Counter * 4 (Ability offset in move list data) 0019a65c: 00438821 addu r17,r2,r3 |Ability pointer in unit's AI move list 0019a660: 26730001 addiu r19,r19,0x0001 |Ability counter + 1 0019a664: 00161280 sll r2,r22,0x0a |Unit's ID * 0x400 0019a668: 08066a85 j 0x0019aa14 >>Jump to END Will store unit ID*4 in Byte 0x01 0019a66c: a2340002 sb r20,0x0002(r17) |Store Unit's Skillset ---- Main routine ---- 0019a670: 02802021 addu r4,r20,r0 |r4 = Unit's Skillset 0019a674: 34050001 ori r5,r0,0x0001 |Check = 1 (Ability) 0019a678: 0c01698e jal 0x0005a638 |-->Store Skillset's Abilities returns r2 = 0x80066204 (temp. Ability list) 0019a67c: afa00010 sw r0,0x0010(r29) |Reset Jump ability flag (see jump section) 0019a680: 00402021 addu r4,r2,r0 |r4 = Temp Ability List? Pointer 0019a684: 3c08801a lui r8,0x801a | 0019a688: 2508f3c4 addiu r8,r8,0xf3c4 |Start of AI data (0x8019f3c4) 0019a68c: 02c81021 addu r2,r22,r8 |AI data + unit ID 0019a690: 34030002 ori r3,r0,0x0002 |r3 = 0x02 (Weapon inventory action menu) 0019a694: 3c018006 lui r1,0x8006 | 0019a698: 00340821 addu r1,r1,r20 |80060000 + skillset ID 0019a69c: 903e5cb4 lbu r30,0x5cb4(r1) |Load Skillset's Action Menu 0019a6a0: 9052198c lbu r18,0x198c(r2) |Load Unit's Battle ID (0xff is not in battle) ---- Weapon Inventory ---- 0019a6a4: 17c3003f bne r30,r3,0x0019a7a4 #If Action menu is Weapon inventory 0019a6a8: 34020003 ori r2,r0,0x0003 |r2 = 0x03 (Maths action menu) 0019a6ac: 02c02021 addu r4,r22,r0 |r4 = Unit's ID 0019a6b0: 02802821 addu r5,r20,r0 |r5 = Unit's Skillset 0019a6b4: 0c066a94 jal 0x0019aa50 |-->Load Known Ability Flag returns r2 = 0x01 if ability is known 0019a6b8: 00003021 addu r6,r0,r0 |Ability number = 0x00 (shuriken - first in skillset) 0019a6bc: 10400014 beq r2,r0,0x0019a710 #If Shuriken is known 0019a6c0: 00162280 sll r4,r22,0x0a |Unit's ID * 0x400 0019a6c4: 00008021 addu r16,r0,r0 |Shuriken Counter = 0 0019a6c8: 00121100 sll r2,r18,0x04 |Battle ID * 0x10 0019a6cc: 00521021 addu r2,r2,r18 |ID * 0x11 0019a6d0: 000210c0 sll r2,r2,0x03 |ID * 0x88 (unit offset) 0019a6d4: 24420ef0 addiu r2,r2,0x0ef0 |ID * 0x88 + 0xef0 (Unit offset + Move List offset) 0019a6d8: 3c08801a lui r8,0x801a | 0019a6dc: 2508f3c4 addiu r8,r8,-0x0c3c |0x8019f3c4 0019a6e0: 00481021 addu r2,r2,r8 |Unit Move list pointer 0019a6e4: 00131880 sll r3,r19,0x02 |Counter * 4 (Ability offset in move list data) 0019a6e8: 00621821 addu r3,r3,r2 |Ability pointer in unit's AI move list @LOOP - Will store 3 moves in move list (one per shuriken type) 0019a6ec: 00901021 addu r2,r4,r16 |Shuriken counter + Unit ID * 0x400 0019a6f0: 2442007a addiu r2,r2,0x007a |Unit ID * 0x400 + Shuriken ID (0x7a + shuriken counter) 0019a6f4: a0740002 sb r20,0x0002(r3) |Store Unit's Skillset in move list data 0019a6f8: a4620000 sh r2,0x0000(r3) |Store Shuriken ID in Byte 0x00 and Unit ID * 4 in byte 0x01 0019a6fc: 24630004 addiu r3,r3,0x0004 |Next Ability Offset in move list 0019a700: 26100001 addiu r16,r16,0x0001 |Shuriken counter + 1 0019a704: 2a020003 slti r2,r16,0x0003 |Check if shuriken counter < 3 0019a708: 1440fff8 bne r2,r0,0x0019a6ec Λ loop 3 times (shuriken, magic shuriken, yagyu darkness) 0019a70c: 26730001 addiu r19,r19,0x0001 |Ability counter + 1 0019a710: 02c02021 addu r4,r22,r0 |r4 = Unit's ID 0019a714: 02802821 addu r5,r20,r0 |r5 = Unit's Skillset 0019a718: 0c066a94 jal 0x0019aa50 |-->Load Known Ability Flag returns r2 = 0x01 if ability is known 0019a71c: 34060001 ori r6,r0,0x0001 |Ability number = 0x1 (Ball - 2nd in skillset) 0019a720: 10400014 beq r2,r0,0x0019a774 #Branch if Ability isn't known 0019a724: 00008021 addu r16,r0,r0 |Ball Counter = 0 0019a728: 00162280 sll r4,r22,0x0a |Unit ID * 0x400 0019a72c: 00121100 sll r2,r18,0x04 |Battle ID * 0x10 0019a730: 00521021 addu r2,r2,r18 |ID * 0x11 0019a734: 000210c0 sll r2,r2,0x03 |ID * 0x88 0019a738: 24420ef0 addiu r2,r2,0x0ef0 |ID * 0x88 + 0xef0 (Unit offset + Move List offset) 0019a73c: 3c08801a lui r8,0x801a | 0019a740: 2508f3c4 addiu r8,r8,0xf3c4 |0x8019f3c4 0019a744: 01021021 addu r2,r8,r2 |Unit Move list pointer 0019a748: 00131880 sll r3,r19,0x02 |Counter * 4 (Ability offset in move list data) 0019a74c: 00621821 addu r3,r3,r2 |Ability pointer in unit's AI move list @LOOP - Will store 3 moves in list (one per ball type) 0019a750: 00901021 addu r2,r4,r16 |Ball counter + Unit ID * 0x400 0019a754: 2442007d addiu r2,r2,0x007d |Unit ID * 0x400 + Ball ID (0x7d + shuriken counter) 0019a758: a0740002 sb r20,0x0002(r3) |Store Unit's Skillset in move list data 0019a75c: a4620000 sh r2,0x0000(r3) |Store Ball ID in Byte 0x00 and Unit ID * 4 in byte 0x01 0019a760: 24630004 addiu r3,r3,0x0004 |Next Ability Offset in move list 0019a764: 26100001 addiu r16,r16,0x0001 |Ball counter + 1 0019a768: 2a020003 slti r2,r16,0x0003 |Check if Ball counter < 3 0019a76c: 1440fff8 bne r2,r0,0x0019a750 Λ loop 3 times (Fire Ball, Water Ball, Lightning Ball)) 0019a770: 26730001 addiu r19,r19,0x0001 |Ability counter + 1 0019a774: 34100002 ori r16,r0,0x0002 |Throw Ability Counter = 0x02 (After shuriken and Ball in skillset) 0019a778: 02c02021 addu r4,r22,r0 |r4 = Unit's ID @LOOP - Check/Store all the others abilities in throw skillset 0019a77c: 02802821 addu r5,r20,r0 |r5 = Unit's Skillset 0019a780: 0c066a94 jal 0x0019aa50 |-->Load Known Ability Flag returns r2 = 0x01 if ability is known 0019a784: 02003021 addu r6,r16,r0 |Ability counter (position in skillset) 0019a788: 1440ffac bne r2,r0,0x0019a63c #If Ability is known : branch backward in weapon inventory section and EXIT 0019a78c: 26100001 addiu r16,r16,0x0001 |Throw Ability Counter ++ 0019a790: 2a02000c slti r2,r16,0x000c |Check if Ability counter reaches 0xc (Nb of abilities in throw skillset) 0019a794: 1440fff9 bne r2,r0,0x0019a77c Λ Loop for the remaining 11 throw abilities 0019a798: 02c02021 addu r4,r22,r0 |r4 = Unit's ID 0019a79c: 08066a87 j 0x0019aa1c >>Jump to END returns r2 as ability counter 0019a7a0: 02601021 addu r2,r19,r0 |r2 = Counter ---- Mathematics ---- 0019a7a4: 17c2000f bne r30,r2,0x0019a7e4 #If Action menu is Mathematics 0019a7a8: 3402000a ori r2,r0,0x000a |r2 = 0x0a (charge) 0019a7ac: 00121100 sll r2,r18,0x04 |Battle ID * 0x10 0019a7b0: 00521021 addu r2,r2,r18 |ID * 0x11 0019a7b4: 000210c0 sll r2,r2,0x03 |ID * 0x88 0019a7b8: 24420ef0 addiu r2,r2,0x0ef0 |Unit offset + 0x0ef0 0019a7bc: 3c08801a lui r8,0x801a | 0019a7c0: 2508f3c4 addiu r8,r8,-0x0c3c |0x8019f3c4 0019a7c4: 00481021 addu r2,r2,r8 |Unit Move's list 0019a7c8: 00131880 sll r3,r19,0x02 |Counter * 4 0019a7cc: 00438821 addu r17,r2,r3 |Unit Move pointer (based on counter) 0019a7d0: 26620001 addiu r2,r19,0x0001 |r2 = Counter + 1 0019a7d4: 00161a80 sll r3,r22,0x0a |Ability ID * 1024 (ID * 4 Stored in upper byte of halfword) 0019a7d8: a2340002 sb r20,0x0002(r17) |Store Skillset in Unit Move data 0x02 0019a7dc: 08066a87 j 0x0019aa1c >>Jump to END returns r2 as ability counter (one ability) 0019a7e0: a6230000 sh r3,0x0000(r17) |Store Unit's ID * 4 in byte 0x01 ---- Charge ---- 0019a7e4: 17c2000c bne r30,r2,0x0019a818 #If Action menu is charge 0019a7e8: 001610c0 sll r2,r22,0x03 |Unit's ID * 8 0019a7ec: 001210c0 sll r2,r18,0x03 |Unit's Battle ID * 8 0019a7f0: 3c08801a lui r8,0x801a | 0019a7f4: 2508f3c4 addiu r8,r8,-0x0c3c |Start of AI data (0x8019f3c4) 0019a7f8: 00481021 addu r2,r2,r8 |Unit data pointer + Unit offset 0019a7fc: 9050177c lbu r16,0x177c(r2) |Load Unit's Weapon ID (0x8019f3c4 + 0x1778 + 0x04 + Unit offset) 0019a800: 00000000 nop | 0019a804: 2602ffb9 addiu r2,r16,-0x0047 |Weapon ID - 0x47 (Romanda Gun) 0019a808: 2c420006 sltiu r2,r2,0x0006 |Check if weapon ID if between 0x47 and 0x4d (is a gun) 0019a80c: 14400083 bne r2,r0,0x0019aa1c #Branch to END If Equiped weapon is a gun returns r2 as ability counter 0019a810: 02601021 addu r2,r19,r0 |r2 = Counter 0019a814: 001610c0 sll r2,r22,0x03 |Unit's ID * 8 ---- Default / Charge (if no guns equiped) / Others (not Maths, not Throw)---- 0019a818: 00561023 subu r2,r2,r22 |ID * 7 0019a81c: 00021180 sll r2,r2,0x06 |ID * 1c0 (unit offset in battle data) 0019a820: 3c038019 lui r3,0x8019 | 0019a824: 246308cc addiu r3,r3,0x08cc | 0019a828: 0043a821 addu r21,r2,r3 |r21 = Unit's Data Pointer 0019a82c: 00008021 addu r16,r0,r0 |Ability Counter = 0 0019a830: 00121100 sll r2,r18,0x04 |Battle ID * 16 0019a834: 00521021 addu r2,r2,r18 |ID * 17 0019a838: 000210c0 sll r2,r2,0x03 |ID *0x88 (Unit offset in AI usable move list) 0019a83c: 24420ef0 addiu r2,r2,0x0ef0 |ID * 0x88 + 0xef0 (Unit offset + Move List offset) 0019a840: 3c08801a lui r8,0x801a | 0019a844: 2508f3c4 addiu r8,r8,-0x0c3c |0x8019f3c4 0019a848: 01023821 addu r7,r8,r2 |Unit usable Move list pointer 0019a84c: 0080b821 addu r23,r4,r0 |r23 = Temp List of Abilities Pointer (All ability in skillset) @LOOP 16 times (All action abilities in the skillset) 0019a850: 96f20000 lhu r18,0x0000(r23) |Load this iteration Ability ID 0019a854: 00000000 nop | 0019a858: 12400060 beq r18,r0,0x0019a9dc #If Ability ID is not 0x00 0019a85c: 00131880 sll r3,r19,0x02 |Ability Counter * 4 (Ability offset in move list) 0019a860: 001220c0 sll r4,r18,0x03 |Ability ID * 8 0019a864: 3c018006 lui r1,0x8006 | 0019a868: 00240821 addu r1,r1,r4 | 0019a86c: 9022ebf7 lbu r2,-0x1409(r1) |Load AI behaviour flags 4 (SCUS data) 0019a870: 00000000 nop | 0019a874: 30420080 andi r2,r2,0x0080 |Check if ability is usable by AI 0019a878: 10400058 beq r2,r0,0x0019a9dc #If AI can use this ability 0019a87c: 00e38821 addu r17,r7,r3 |r17 = Current Usable Ability Pointer 0019a880: 2a420170 slti r2,r18,0x0170 |check if ability has an data 2 table (less than potion) 0019a884: 1040002c beq r2,r0,0x0019a938 #If Ability has a data2 table 0019a888: 00921023 subu r2,r4,r18 |Ability ID * 7 0019a88c: 00022040 sll r4,r2,0x01 |Ability ID * 14 (offset in data2) 0019a890: 92a20090 lbu r2,0x0090(r21) |Load Unit's Support set 2 0019a894: 3c018006 lui r1,0x8006 | 0019a898: 00240821 addu r1,r1,r4 | 0019a89c: 9023fbfd lbu r3,-0x0403(r1) |Load Ability's MP Cost 0x8005fbf0 - 0x0d + Ability offset 0019a8a0: 30420080 andi r2,r2,0x0080 |Check for Half of MP 0019a8a4: 10400002 beq r2,r0,0x0019a8b0 #If Unit uses Half of MP 0019a8a8: 00000000 nop | 0019a8ac: 00031842 srl r3,r3,0x01 |Halve MP 0019a8b0: 96a2002e lhu r2,0x002e(r21) |Load Unit's Max MP 0019a8b4: 00000000 nop | 0019a8b8: 0043102a slt r2,r2,r3 |Check if Max MP < MP cost 0019a8bc: 14400047 bne r2,r0,0x0019a9dc #If unit could use the Ability (Max MP > MP cost) /Else branch to next iteration (Ability not usable) 0019a8c0: 00000000 nop | 0019a8c4: 3c02801a lui r2,0x801a | 0019a8c8: 8c42f3d0 lw r2,-0x0c30(r2) |Load AI Behavior Data When this was updated - should be SCUS? 0019a8cc: 00000000 nop | 0019a8d0: 30420400 andi r2,r2,0x0400 |Check for check Faith 0019a8d4: 10400006 beq r2,r0,0x0019a8f0 #If AI used ability has check Faith ON 0019a8d8: 00000000 nop | 0019a8dc: 92a20052 lbu r2,0x0052(r21) |Load Unit's Innate Statuses set 5 Innate because this routine is not executed at every turn (Start - unequip - equip change etc..) 0019a8e0: 00000000 nop | 0019a8e4: 30420040 andi r2,r2,0x0040 |Check for innocent 0019a8e8: 1440003c bne r2,r0,0x0019a9dc #If Unit has innocent (innate) Branch to next iteration Ability is not usable 0019a8ec: 00000000 nop | 0019a8f0: 3c018006 lui r1,0x8006 | 0019a8f4: 00240821 addu r1,r1,r4 | 0019a8f8: 9023fbf6 lbu r3,-0x040a(r1) |Load Ability Flags 4 ( 0x8005fbf0 - 0x06 + Ability offset) 0019a8fc: 00000000 nop | 0019a900: 30620008 andi r2,r3,0x0008 |Check fr requires sword 0019a904: 10400004 beq r2,r0,0x0019a918 #If Ability requires a sword 0019a908: 00000000 nop | 0019a90c: 92a20184 lbu r2,0x0184(r21) |Load Unit's Equipped Flags 0019a910: 08066a4c j 0x0019a930 >>Avoid matera blade section 0019a914: 30420008 andi r2,r2,0x0008 |Check for Sword (not null if sword is equipped) #Else check materia blade 0019a918: 30620004 andi r2,r3,0x0004 |Check for requires matera blade 0019a91c: 10400007 beq r2,r0,0x0019a93c #If Ability requires a materia blade 0019a920: 02c02021 addu r4,r22,r0 |r4 = Unit's ID 0019a924: 92a20184 lbu r2,0x0184(r21) |Load Unit's Equipped Flags 0019a928: 00000000 nop | 0019a92c: 30420004 andi r2,r2,0x0004 |Check for materia blade 0019a930: 1040002a beq r2,r0,0x0019a9dc #If Equipment flag is not fullfilled branch to Next iteration (ability is not usable) 0019a934: 00000000 nop | 0019a938: 02c02021 addu r4,r22,r0 |r4 = Unit's ID 0019a93c: 02802821 addu r5,r20,r0 |r5 = Skillset 0019a940: 02003021 addu r6,r16,r0 |r6 = Ability Counter 0019a944: 0c066a94 jal 0x0019aa50 |-->Load Known Ability Flag returns r2 = 0x01 if ability is known 0019a948: afa70018 sw r7,0x0018(r29) |Preserve r7 0019a94c: 8fa70018 lw r7,0x0018(r29) |Restore r7 (AI unit usable move list pointer) 0019a950: 10400022 beq r2,r0,0x0019a9dc #If Ability is known /Else branch to next iteration 0019a954: 2a8200b0 slti r2,r20,0x00b0 |Check if skillset is a monster skillset 0019a958: 1440000c bne r2,r0,0x0019a98c #If Monster skillset 0019a95c: 34020009 ori r2,r0,0x0009 |r2 = 9 0019a960: 34020003 ori r2,r0,0x0003 |r2 = 3 0019a964: 16020004 bne r16,r2,0x0019a978 #If Ability counter = 0x03 (Last monster ability) 0019a968: 00000000 nop | 0019a96c: 96220002 lhu r2,0x0002(r17) |Load Ability's skillset and extra behavior data 0019a970: 08066a61 j 0x0019a984 | 0019a974: 34420800 ori r2,r2,0x0800 |Enable Monster skill needed flag #Else : not last monster ability 0019a978: 96220002 lhu r2,0x0002(r17) |Load Ability's skillset and extra behavior data 0019a97c: 00000000 nop | 0019a980: 3042f7ff andi r2,r2,0xf7ff |Disable Monster Skill Needed flag? 0019a984: a6220002 sh r2,0x0002(r17) |Store new Skillset/flags (AI list of usable moves) 0019a988: 34020009 ori r2,r0,0x0009 |r2 = 9 0019a98c: a2340002 sb r20,0x0002(r17) |Store Skillset 0019a990: 17c2000d bne r30,r2,0x0019a9c8 #If Skillset's action menu is Jump /Else branch to store unit ID 0019a994: a6320000 sh r18,0x0000(r17) |Store Ability ID 0019a998: 2a42018f slti r2,r18,0x018f |Check if Ability ID is less then 0x18f (vertical jump 2) 0019a99c: 1040000f beq r2,r0,0x0019a9dc #If Ability is a "Level Jump" ability /Else branch to next iteration (For now only range matters) 0019a9a0: 34020001 ori r2,r0,0x0001 |r2 = 0x01 0019a9a4: 8fa80010 lw r8,0x0010(r29) |Load Stored Jump Flag 0019a9a8: 00000000 nop | 0019a9ac: 15020005 bne r8,r2,0x0019a9c4 #If Jump flag is ON 0019a9b0: 34080001 ori r8,r0,0x0001 |Enable Jump flag 0019a9b4: 2673ffff addiu r19,r19,-0x0001 |Ability counter - 1 0019a9b8: 00131080 sll r2,r19,0x02 |Ability offset in AI list of usable moves 0019a9bc: 00e28821 addu r17,r7,r2 |r17 = Previous Usable Ability Pointer Was a jump ability (Jump flag is 0x01) 0019a9c0: a6320000 sh r18,0x0000(r17) |Update Ability ID with a better Jump ability 0019a9c4: afa80010 sw r8,0x0010(r29) |Store new Jump Stored Flag 0019a9c8: 26730001 addiu r19,r19,0x0001 #E |Ability counter + 1 0019a9cc: 96220000 lhu r2,0x0000(r17) |Load Ability ID 0019a9d0: 00161a80 sll r3,r22,0x0a |Unit ID * 0x400 0019a9d4: 00431021 addu r2,r2,r3 |Ability ID + Unit ID * 0x400 0019a9d8: a6220000 sh r2,0x0000(r17) |Store Ability/Unit ID Data 0019a9dc: 26100001 addiu r16,r16,0x0001 |Ability Counter + 1 0019a9e0: 2a020010 slti r2,r16,0x0010 |Check counter Vs 0x10 (Max abilities in a skillset) 0019a9e4: 1440ff9a bne r2,r0,0x0019a850 Λ Loop while Ability Counter < 16 0019a9e8: 26f70002 addiu r23,r23,0x0002 |Ability ID Pointer += 2 (in Temporary list at 0x80066204) 0019a9ec: 34020009 ori r2,r0,0x0009 |r2 = 9 0019a9f0: 17c20009 bne r30,r2,0x0019aa18 #If Action menu is Jump 0019a9f4: 00000000 nop | 0019a9f8: 8fa80010 lw r8,0x0010(r29) |Load Jump Stored Flag 0019a9fc: 00000000 nop | 0019aa00: 15000006 bne r8,r0,0x0019aa1c #If there is no Jump flag stored /Else branch to END and returns r2 = Ability counter 0019aa04: 02601021 addu r2,r19,r0 |r2 = Counter 0019aa08: 34020012 ori r2,r0,0x0012 |r2 = 0x12 0019aa0c: a2220002 sb r2,0x0002(r17) |Store Skillset = Jump (Hard coded) 0019aa10: 00161280 sll r2,r22,0x0a |Unit ID * 0x400 0019aa14: a6220000 sh r2,0x0000(r17) |Store Unit's ID *4 in byte 0x01 (known throw ability jump here too) 0019aa18: 02601021 addu r2,r19,r0 |r2 = Counter (number of usable abilities? is this an AI thing?) 0019aa1c: 8fbf0044 lw r31,0x0044(r29) END 0019aa20: 8fbe0040 lw r30,0x0040(r29) 0019aa24: 8fb7003c lw r23,0x003c(r29) 0019aa28: 8fb60038 lw r22,0x0038(r29) 0019aa2c: 8fb50034 lw r21,0x0034(r29) 0019aa30: 8fb40030 lw r20,0x0030(r29) 0019aa34: 8fb3002c lw r19,0x002c(r29) 0019aa38: 8fb20028 lw r18,0x0028(r29) 0019aa3c: 8fb10024 lw r17,0x0024(r29) 0019aa40: 8fb00020 lw r16,0x0020(r29) 0019aa44: 27bd0048 addiu r29,r29,0x0048 0019aa48: 03e00008 jr r31 0019aa4c: 00000000 nop
Notes
AI Unit list of usable moves 8019f3c4 - 0x0ef0
- Weapon inventory : 3 Abilities for shuriken (1 per type of shuriken)
3 Abilities for Ball (1 per type of Ball)
1 unique ability for all other weapons (if one is known)
0x00 - Item ID if shuriken or Ball - Else 0x00
0x01 - Unit ID * 4
0x02 - Skillset ID
- Mathematics : No "known ability" check. 1 Move only.
0x00 - Nothing
0x01 - Unit ID * 4
0x02 - Skillset ID
- Charge : Ignored if Unit uses a gun (AI data 0x8019f3c4 - 0x1778)
If not, processed as default
- Jump : only one ability is stored, either the best "Level jump" one, or no ability ID (if only a vertical jump is known)
0x00 - Ability ID (or 0x00 if only vertical jump abilities are known)
0x01 - Unit ID *4
0x02 - Skillset ID (or 0x12 hardcoded if no level jump ability are known)
- Default/Others case
0x00 - Ability ID
0x01 - Unit ID *4
0x02 - Skillset ID
Note : Monsters skillsets : The "requires monster skill" flag is Enabled for the
last ability and disabled for the others. (So the Patcher checkbox seems useless)
Hardcoded mechanics
- Weapon inventory : Shuriken ID (from 0x7a) and Ball ID (from 0x7d)
The loop stops at 0x0c (Any ability beyond this point will be ignored)
- Charge : Guns are checked by ID (0x47 to 0x4d)
- Jump skillset hardcoded as 0x12 if only "vertical jump" abilities are known
- Requires Monster Skill flag : Forced ON for the last ability in skillset (Disabled if not)
BUG ?
- The [Affected by Faith] ability flag is loaded from 0x8019f3c4 - 0x0d Byte. This flag is not updated during the loop, and
i'm not sure what is stored here at this point. I feel it should be loaded from SCUS data table.
Return Locations
Battle.bin 0019a47c: Set_AI_Flags/Usable_Abilities 0019a4a0: Set_AI_Flags/Usable_Abilities
