Attack Preparation
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BATTLE.BIN : - Attack_Preparation
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Parameter : r4 : Pointer to Data in Battle 0x16e formating (see return location section) - AI , Battle or Misc
r5 = Pointer to Data in Battle 0x16e formating (see return location section)
r6 = Preset Value (0x00 Ability Selected ? / 0x01 AT List Preview / 0x0d mimic Ability ? Unconfirmed)
Return : r2 = 0x01 if Ability CT = 0x00
r2 = 0x00 if Ability CT > 0x00
r2 = -0x01 if Invalid data
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0017c45c: 27bdffb0 addiu r29,r29,-0x0050 |addiu r29,r29,-0x0050
0017c460: afb5003c sw r21,0x003c(r29) |
0017c464: 00a0a821 addu r21,r5,r0 |Preserve 801908cc + 0x16e Pointer
0017c468: afb40038 sw r20,0x0038(r29) |
0017c46c: 00c0a021 addu r20,r6,r0 |Preserves Preset Value
0017c470: 27a50010 addiu r5,r29,0x0010 |Stack Pointer + 0x10
0017c474: afbf0048 sw r31,0x0048(r29) |
0017c478: afb70044 sw r23,0x0044(r29) |
0017c47c: afb60040 sw r22,0x0040(r29) |
0017c480: afb30034 sw r19,0x0034(r29) |
0017c484: afb20030 sw r18,0x0030(r29) |
0017c488: afb1002c sw r17,0x002c(r29) |
0017c48c: 0c01788b jal 0x0005e22c |-->Copy_Byte_Data_(20_Bytes) From r4 to r5
0017c490: afb00028 sw r16,0x0028(r29) |
0017c494: 93a30010 lbu r3,0x0010(r29) |Acting Unit ID
0017c498: 00000000 nop |
0017c49c: 2c620015 sltiu r2,r3,0x0015 |
0017c4a0: 104000dd beq r2,r0,0x0017c818 #If Unit ID is invalid Exit Returns -0x01
0017c4a4: 000310c0 sll r2,r3,0x03 |
0017c4a8: 00431023 subu r2,r2,r3 |
0017c4ac: 00021180 sll r2,r2,0x06 |Unit offset (Unit ID * 0x1c0)
0017c4b0: 3c038019 lui r3,0x8019 |
0017c4b4: 246308cc addiu r3,r3,0x08cc |
0017c4b8: 00439821 addu r19,r2,r3 |Considered Unit Battle data pointer Always acting unit ?
0017c4bc: 92620001 lbu r2,0x0001(r19) |load unit ID
0017c4c0: 340400ff ori r4,r0,0x00ff |
0017c4c4: 104400d4 beq r2,r4,0x0017c818 #If considered Unit doesn't exists Exit Returns -0x01
0017c4c8: 34020006 ori r2,r0,0x0006 |
0017c4cc: 93a3001a lbu r3,0x001a(r29) |Load r4 pointer + 0x0a Could be 6 if Target Map
0017c4d0: 00000000 nop |
0017c4d4: 1462000e bne r3,r2,0x0017c510 #If r4 0x0a = 0x06 ( Ability has [Target Map] ? ) Set to 0x06 if Target Map / labeled as Target-specific in wiki
0017c4d8: 0000b021 addu r22,r0,r0 |
0017c4dc: 93a3001b lbu r3,0x001b(r29) |load Target ID ?
0017c4e0: 00000000 nop |
0017c4e4: 2c620015 sltiu r2,r3,0x0015 |
0017c4e8: 104000cb beq r2,r0,0x0017c818 #If Unit ID is invalid Exit Returns -0x01
0017c4ec: 000310c0 sll r2,r3,0x03 |
0017c4f0: 00431023 subu r2,r2,r3 |
0017c4f4: 00021180 sll r2,r2,0x06 |ID * 0x1c0
0017c4f8: 3c018019 lui r1,0x8019 |
0017c4fc: 00220821 addu r1,r1,r2 |
0017c500: 902208cd lbu r2,0x08cd(r1) |This Unit Battle ID 801908cc + 0x01 + Unit offset
0017c504: 00000000 nop |
0017c508: 104400f4 beq r2,r4,0x0017c8dc #If considered Unit doesn't exists Exit Returns -0x01
0017c50c: 2402ffff addiu r2,r0,-0x0001 |
0017c510: 93a20011 lbu r2,0x0011(r29) |Considered Ability's skillset
0017c514: 3c018006 lui r1,0x8006 |
0017c518: 00220821 addu r1,r1,r2 |
0017c51c: 90235cb4 lbu r3,0x5cb4(r1) |Considered Ability's Action Menu 80065cb4 + Skillset offset (Byte)
0017c520: 00000000 nop |
0017c524: 2c62000d sltiu r2,r3,0x000d |set if less than 0d
0017c528: 104000bb beq r2,r0,0x0017c818 #If Action Menu is Unknwon or Blank Exit Returns -0x01
0017c52c: 00031080 sll r2,r3,0x02 |Action Menu Offset (word)
0017c530: 3c018017 lui r1,0x8017 |
0017c534: 00220821 addu r1,r1,r2 |
0017c538: 8c2240e8 lw r2,0x40e8(r1) |Load return address based on action menu byte
0017c53c: 00000000 nop |
0017c540: 00400008 jr r2 >>jump to dedicated section See Notes
0017c544: 00000000 nop
Item Inventory
0017c548: 93b10018 lbu r17,0x0018(r29) load used item ID
0017c54c: 00000000 nop
0017c550: 323200ff andi r18,r17,0x00ff
0017c554: 00121040 sll r2,r18,0x01 item ID*2
0017c558: 00521021 addu r2,r2,r18 item ID*2 + Item ID
0017c55c: 00021080 sll r2,r2,0x02 (item ID*2 + Item ID)*4
0017c560: 3c018006 lui r1,0x8006
0017c564: 00220821 addu r1,r1,r2
0017c568: 90232ebd lbu r3,0x2ebd(r1) load item type
0017c56c: 34020022 ori r2,r0,0x0022
0017c570: 146200da bne r3,r2,0x0017c8dc skip to end if used item is not an item. not necessary?
0017c574: 2402ffff addiu r2,r0,0xffff r2 = -1
0017c578: 27a40010 addiu r4,r29,0x0010
0017c57c: 0c01788b jal 0x0005e22c -->Copy_Byte_Data_(20_Bytes)
0017c580: 02a02821 addu r5,r21,r0 r5 = 0x182 in unit data (mount data)
0017c584: 26300080 addiu r16,r17,0x0080 r16 = used ability ID
0017c588: 12800067 beq r20,r0,0x0017c728 branch if r20 is 0
0017c58c: a6b00002 sh r16,0x0002(r21) store used ability ID
0017c590: 32820001 andi r2,r20,0x0001
0017c594: 10400064 beq r2,r0,0x0017c728 branch if r20 is not 01
0017c598: 02602021 addu r4,r19,r0 r4 = unit data
0017c59c: 02402821 addu r5,r18,r0 r5 = used item ID
0017c5a0: 0c05f255 jal 0x0017c954 -->Player_Item_Quantity_decrement
0017c5a4: 34060001 ori r6,r0,0x0001 input value = 01
0017c5a8: 34020001 ori r2,r0,0x0001
0017c5ac: 0805f1ca j 0x0017c728 jump to write action taken, return r2=01
0017c5b0: a2620188 sb r2,0x0188(r19) store action taken
Weapon Inventory
0017c5b4: 3410017e ori r16,r0,0x017e
0017c5b8: 93b10018 lbu r17,0x0018(r29)
0017c5bc: 3c048006 lui r4,0x8006
0017c5c0: 24840ea2 addiu r4,r4,0x0ea2 load ability data 2 (@ ability 0x170)
0017c5c4: 00111040 sll r2,r17,0x01
0017c5c8: 00511021 addu r2,r2,r17
0017c5cc: 00021080 sll r2,r2,0x02
0017c5d0: 3c018006 lui r1,0x8006
0017c5d4: 00220821 addu r1,r1,r2
0017c5d8: 90232ebd lbu r3,0x2ebd(r1) load item type?
0017c5dc: 00101400 sll r2,r16,0x10
0017c5e0: 00021403 sra r2,r2,0x10
0017c5e4: 00441021 addu r2,r2,r4
0017c5e8: 90420000 lbu r2,0x0000(r2)
0017c5ec: 00000000 nop
0017c5f0: 10430007 beq r2,r3,0x0017c610
0017c5f4: 26020001 addiu r2,r16,0x0001
0017c5f8: 00408021 addu r16,r2,r0
0017c5fc: 00021400 sll r2,r2,0x10
0017c600: 00021403 sra r2,r2,0x10
0017c604: 2842018a slti r2,r2,0x018a
0017c608: 1440fff5 bne r2,r0,0x0017c5e0
0017c60c: 00101400 sll r2,r16,0x10
0017c610: 00101400 sll r2,r16,0x10
0017c614: 00021403 sra r2,r2,0x10
0017c618: 3403018a ori r3,r0,0x018a
0017c61c: 1043007e beq r2,r3,0x0017c818
0017c620: 27a40010 addiu r4,r29,0x0010
0017c624: 0c01788b jal 0x0005e22c -->Copy_Byte_Data_(20_Bytes)
0017c628: 02a02821 addu r5,r21,r0
0017c62c: 1280003e beq r20,r0,0x0017c728
0017c630: a6b00002 sh r16,0x0002(r21)
0017c634: 32820001 andi r2,r20,0x0001
0017c638: 1040003b beq r2,r0,0x0017c728
0017c63c: 02602021 addu r4,r19,r0
0017c640: 02202821 addu r5,r17,r0
0017c644: 0c05f255 jal 0x0017c954 -->Player_Item_Quantity_decrement
0017c648: 34060001 ori r6,r0,0x0001
0017c64c: 34020001 ori r2,r0,0x0001
0017c650: 0805f1ca j 0x0017c728
0017c654: a2620188 sb r2,0x0188(r19)
Math Skill
0017c658: 3404fe62 ori r4,r0,0xfe62
0017c65c: 97b00012 lhu r16,0x0012(r29)
0017c660: 97a20014 lhu r2,0x0014(r29)
0017c664: 97a30016 lhu r3,0x0016(r29)
0017c668: 00441021 addu r2,r2,r4 r2 - 19e
0017c66c: 3042ffff andi r2,r2,0xffff
0017c670: 2c420008 sltiu r2,r2,0x0008
0017c674: 10400068 beq r2,r0,0x0017c818 branch if not using a math skill ability
0017c678: 00641021 addu r2,r3,r4
0017c67c: 3042ffff andi r2,r2,0xffff
0017c680: 2c420008 sltiu r2,r2,0x0008
0017c684: 10400064 beq r2,r0,0x0017c818 same check for 2nd parameter?
0017c688: 3202ffff andi r2,r16,0xffff
0017c68c: 2c420170 sltiu r2,r2,0x0170
0017c690: 10400061 beq r2,r0,0x0017c818 check if 3rd parameter is an active ability
0017c694: 27a40010 addiu r4,r29,0x0010
0017c698: 0c01788b jal 0x0005e22c -->Copy_Byte_Data_(20_Bytes)
0017c69c: 02a02821 addu r5,r21,r0
0017c6a0: 12800021 beq r20,r0,0x0017c728
0017c6a4: 32820001 andi r2,r20,0x0001
0017c6a8: 1040001f beq r2,r0,0x0017c728
0017c6ac: 34020001 ori r2,r0,0x0001
0017c6b0: 0805f1ca j 0x0017c728
0017c6b4: a2620188 sb r2,0x0188(r19)
Elements
0017c6b8: 0c05fcb6 jal 0x0017f2d8
0017c6bc: 02602021 addu r4,r19,r0
0017c6c0: 0805f1ff j 0x0017c7fc
0017c6c4: a7a20012 sh r2,0x0012(r29)
Katana Inventory
0017c6c8: 93b10018 lbu r17,0x0018(r29)
0017c6cc: 00000000 nop
0017c6d0: 2622ffda addiu r2,r17,0xffda
0017c6d4: 2c42000a sltiu r2,r2,0x000a
0017c6d8: 1040004f beq r2,r0,0x0017c818 Branch if ?? not a draw out thing?
0017c6dc: 26300026 addiu r16,r17,0x0026
0017c6e0: 32820001 andi r2,r20,0x0001
0017c6e4: 10400045 beq r2,r0,0x0017c7fc Branch if ???
0017c6e8: a7b00012 sh r16,0x0012(r29)
0017c6ec: 02602021 addu r4,r19,r0
0017c6f0: 02202821 addu r5,r17,r0
0017c6f4: 0c05f255 jal 0x0017c954 -->Player_Item_Quantity_decrement
0017c6f8: 34060001 ori r6,r0,0x0001
0017c6fc: 0805f1ff j 0x0017c7fc
0017c700: 00000000 nop
Attack
0017c704: 27a40010 addiu r4,r29,0x0010
0017c708: 0c01788b jal 0x0005e22c -->Copy_Byte_Data_(20_Bytes)
0017c70c: 02a02821 addu r5,r21,r0
0017c710: 12800004 beq r20,r0,0x0017c724
0017c714: 32820001 andi r2,r20,0x0001
0017c718: 10400002 beq r2,r0,0x0017c724
0017c71c: 34020001 ori r2,r0,0x0001
0017c720: a2620188 sb r2,0x0188(r19)
0017c724: a6a00002 sh r0,0x0002(r21) store last attack used?
0017c728: 0805f237 j 0x0017c8dc
0017c72c: 34020001 ori r2,r0,0x0001
Jump
0017c730: 27a40010 addiu r4,r29,0x0010
0017c734: 0c01788b jal 0x0005e22c -->Copy_Byte_Data_(20_Bytes)
0017c738: 02a02821 addu r5,r21,r0
0017c73c: 12800013 beq r20,r0,0x0017c78c
0017c740: 34030032 ori r3,r0,0x0032
0017c744: 92620038 lbu r2,0x0038(r19) load speed
0017c748: 00000000 nop
0017c74c: 0062001a div r3,r2 0x32 / speed?
0017c750: 00001812 mflo r3
0017c754: 00000000 nop
0017c758: 00609021 addu r18,r3,r0
0017c75c: 16400002 bne r18,r0,0x0017c768
0017c760: 02401021 addu r2,r18,r0
0017c764: 34020001 ori r2,r0,0x0001
0017c768: a262015d sb r2,0x015d(r19) store current ability CT
0017c76c: 32820001 andi r2,r20,0x0001
0017c770: 10400006 beq r2,r0,0x0017c78c
0017c774: 02602021 addu r4,r19,r0
0017c778: 34050006 ori r5,r0,0x0006
0017c77c: 34020001 ori r2,r0,0x0001
0017c780: a0820188 sb r2,0x0188(r4) Store action taken
0017c784: 0c0179ea jal 0x0005e7a8 set status flags - jump
0017c788: a0820187 sb r2,0x0187(r4) store movement taken
0017c78c: 3402018a ori r2,r0,0x018a
0017c790: a6a20002 sh r2,0x0002(r21) store last attack used
0017c794: 0805f237 j 0x0017c8dc
0017c798: 34020003 ori r2,r0,0x0003
Charge
0017c79c: 97b00012 lhu r16,0x0012(r29)
0017c7a0: 00000000 nop
0017c7a4: 2602fe6a addiu r2,r16,0xfe6a ability ID - 196
0017c7a8: 2c420008 sltiu r2,r2,0x0008
0017c7ac: 1040001a beq r2,r0,0x0017c818 check if ability is charge ability
0017c7b0: 27a40010 addiu r4,r29,0x0010
0017c7b4: 0c01788b jal 0x0005e22c -->Copy_Byte_Data_(20_Bytes)
0017c7b8: 02a02821 addu r5,r21,r0
0017c7bc: 00101400 sll r2,r16,0x10
0017c7c0: 000213c3 sra r2,r2,0x0f
0017c7c4: 3c018006 lui r1,0x8006
0017c7c8: 00220821 addu r1,r1,r2
0017c7cc: 90320d18 lbu r18,0x0d18(r1) get charges power?
0017c7d0: 32820001 andi r2,r20,0x0001
0017c7d4: 10400003 beq r2,r0,0x0017c7e4
0017c7d8: 34160001 ori r22,r0,0x0001
0017c7dc: 34020001 ori r2,r0,0x0001
0017c7e0: a2620187 sb r2,0x0187(r19) store movement taken
0017c7e4: 0805f1ff j 0x0017c7fc
0017c7e8: 0000b821 addu r23,r0,r0
Defend
0017c7ec: 0805f237 j 0x0017c8dc
0017c7f0: 00001021 addu r2,r0,r0
Change Equipment
0017c7f4: 0805f237 j 0x0017c8dc
0017c7f8: 34020002 ori r2,r0,0x0002
Default / Monster / ( end of Katana Inventory / Charge)
0017c7fc: 16c00020 bne r22,r0,0x0017c880 #If r22 <> 0x00 Skip CT section Keep r22 with his value (instead of setting it to CT)
0017c800: 00000000 nop |
0017c804: 97b00012 lhu r16,0x0012(r29) |Considered Ability ID
0017c808: 00000000 nop |
0017c80c: 2e020170 sltiu r2,r16,0x0170 |
0017c810: 14400003 bne r2,r0,0x0017c820 #If Ability Has a data 2 section Avoid Fail
0017c814: 27a40010 addiu r4,r29,0x0010 |
Fails and Blank action Menu
0017c818: 0805f237 j 0x0017c8dc >>Jump to Exit returns -0x01
0017c81c: 2402ffff addiu r2,r0,-0x0001 |
Load and Check Ability CT
0017c820: 0c01788b jal 0x0005e22c |-->Copy_Byte_Data_(20_Bytes) From r4 (stack data coming from r4 passed pointer ) to r5 (r5 passed pointer)
0017c824: 02a02821 addu r5,r21,r0 |
0017c828: 00101c00 sll r3,r16,0x10 |
0017c82c: 00031c03 sra r3,r3,0x10 |Ability ID
0017c830: 000310c0 sll r2,r3,0x03 |
0017c834: 00431023 subu r2,r2,r3 |
0017c838: 00021040 sll r2,r2,0x01 |14
0017c83c: 3c038006 lui r3,0x8006 |
0017c840: 2463fbf0 addiu r3,r3,-0x0410 |
0017c844: 00431021 addu r2,r2,r3 |0x8005fbf0 + Ability offset (0xe bytes)
0017c848: 9043000c lbu r3,0x000c(r2) |Ability CT
0017c84c: 90420005 lbu r2,0x0005(r2) |load flags 3
0017c850: 3072007f andi r18,r3,0x007f |r18 = CT as signed?
0017c854: 30570004 andi r23,r2,0x0004 |persevere check
0017c858: 92630092 lbu r3,0x0092(r19) |Acting Unit support 4
0017c85c: 16e00008 bne r23,r0,0x0017c880 #If Ability do NOT have [Persevere] aka performing
0017c860: 30620008 andi r2,r3,0x0008 |
0017c864: 10400002 beq r2,r0,0x0017c870 #If Acting Unit uses [Short Charge]
0017c868: 26420001 addiu r2,r18,0x0001 |
0017c86c: 00029042 srl r18,r2,0x01 |CT / 2
0017c870: 30620004 andi r2,r3,0x0004 |
0017c874: 10400002 beq r2,r0,0x0017c880 #If Acting Unit used [Non Charge]
0017c878: 00000000 nop |
0017c87c: 00009021 addu r18,r0,r0 |CT = 0
Store Ability CT and Action Taken- Set Charging/Performing Status
0017c880: 12800014 beq r20,r0,0x0017c8d4 #If Preset Value (r6) = 0x00 Avoid Status section
0017c884: 32820001 andi r2,r20,0x0001 |
0017c888: 10400012 beq r2,r0,0x0017c8d4 #If Preset Value (r6) = 0x01 (or 0x0d ?)
0017c88c: a272015d sb r18,0x015d(r19) |Store current ability CT
0017c890: 3c028019 lui r2,0x8019 |
0017c894: 8c42f5f0 lw r2,-0x0a10(r2) |Load Type of Action
0017c898: 00000000 nop |
0017c89c: 1440000e bne r2,r0,0x0017c8d8 #If Reaction (<> 0x00) Exit returns r2 based on CT
0017c8a0: 324200ff andi r2,r18,0x00ff |r2 = CT
0017c8a4: 34020001 ori r2,r0,0x0001 |
0017c8a8: a2620188 sb r2,0x0188(r19) |Store action taken flag
0017c8ac: 324200ff andi r2,r18,0x00ff |
0017c8b0: 10400008 beq r2,r0,0x0017c8d4 #if CT <> 0x00
0017c8b4: 32e200ff andi r2,r23,0x00ff |
0017c8b8: 10400003 beq r2,r0,0x0017c8c8 #If Ability has [Persevere]
0017c8bc: 02602021 addu r4,r19,r0 |Prepare Acting Unit Battle data pointer
0017c8c0: 0805f233 j 0x0017c8cc |
0017c8c4: 34050008 ori r5,r0,0x0008 |Inflict Performing and remove everything else
Else : Not Persevere
0017c8c8: 34050005 ori r5,r0,0x0005 |Inflict Charging and remove everything else
0017c8cc: 0c0179ea jal 0x0005e7a8 |-->Status_infliction/removal%3F
0017c8d0: 00000000 nop |
0017c8d4: 324200ff andi r2,r18,0x00ff |r2 = CT
0017c8d8: 2c420001 sltiu r2,r2,0x0001 |0x01 if CT = 0x00 Else 0x00
0017c8dc: 8fbf0048 lw r31,0x0048(r29)
0017c8e0: 8fb70044 lw r23,0x0044(r29)
0017c8e4: 8fb60040 lw r22,0x0040(r29)
0017c8e8: 8fb5003c lw r21,0x003c(r29)
0017c8ec: 8fb40038 lw r20,0x0038(r29)
0017c8f0: 8fb30034 lw r19,0x0034(r29)
0017c8f4: 8fb20030 lw r18,0x0030(r29)
0017c8f8: 8fb1002c lw r17,0x002c(r29)
0017c8fc: 8fb00028 lw r16,0x0028(r29)
0017c900: 27bd0050 addiu r29,r29,0x0050
0017c904: 03e00008 jr r31
0017c908: 00000000 nop
Notes
RAM | Rank | Action Menu | Jump Address | -----------|-------|--------------------|---------------| 0x801740e8 | 0x00 | Default | 0x8017c7fc | 0x801740ec | 0x01 | Item Inventory | 0x8017c548 | 0x801740f0 | 0x02 | Weapon Inventory | 0x8017c5b4 | 0x801740f4 | 0x03 | Arithmeticks | 0x8017c658 | 0x801740f8 | 0x04 | Elements | 0x8017c6b8 | 0x801740fc | 0x05 | Blank | 0x8017c818 | 0x80174100 | 0x06 | Monster | 0x8017c7fc | 0x80174104 | 0x07 | Katana Inventory | 0x8017c6c8 | 0x80174108 | 0x08 | Attack | 0x8017c704 | 0x8017410c | 0x09 | Jump | 0x8017c730 | 0x80174110 | 0x0A | Charge | 0x8017c79c | 0x80174114 | 0x0B | Defend | 0x8017c7ec | 0x80174118 | 0x0C | Change Equipment | 0x8017c7f4 |
Return locations
BATTLE.BIN 0017c3cc: Call_Attack_Preparation_(ability_selected) r4 Misc Unit 0x15c / r5 Misc Unit 0x15c / r6 = 0x00 0017c414: Call_Attack_Preparation_(AT_list_preview) r4 AI 0x1c / r5 Battle 0x16e / r6 = 0x01 0018f254: Mimic_ability_setting r4 = Stack 0x20 / r5 = Battle 0x16e / r6 = 0x01
