Difference between revisions of "Player Control Routine"
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(Added some notes about how the branches work. Seems to have some extra redundancy with can't act/can't move checks...) |
m (Clarified some notes. Seems like there's a redundant layer of checking if the unit can act and/or move after those possibilities should already have been ruled out.) |
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0018129c: 00621825 or r3,r3,r2 r3 = Action Taken + Weapon Guard Usability output. 0x01 or 0x02 if unit can't act. | 0018129c: 00621825 or r3,r3,r2 r3 = Action Taken + Weapon Guard Usability output. 0x01 or 0x02 if unit can't act. | ||
001812a0: 14a00005 bne r5,r0,0x001812b8 Branch if unit can't move | 001812a0: 14a00005 bne r5,r0,0x001812b8 Branch if unit can't move | ||
| − | 001812a4: 306200ff andi r2,r3,0x00ff r2 = r3 (can act). | + | 001812a4: 306200ff andi r2,r3,0x00ff r2 = r3 (can act). Doesn't seem to be a need to move r3 to r2 instead of just branch-checking r3, but whatever |
| − | 001812a8: 14400007 bne r2,r0,0x001812c8 Branch if can't act/evade, but can move | + | 001812a8: 14400007 bne r2,r0,0x001812c8 Branch if can't act/evade, but prior checks mean unit can move |
001812ac: 00000000 nop | 001812ac: 00000000 nop | ||
001812b0: 080604bc j 0x001812f0 Can both act and move. Jump to end with r2 = 0 | 001812b0: 080604bc j 0x001812f0 Can both act and move. Jump to end with r2 = 0 | ||
001812b4: 00001021 addu r2,r0,r0 | 001812b4: 00001021 addu r2,r0,r0 | ||
| − | 001812b8: 14400003 bne r2,r0,0x001812c8 Branch if can't act/evade | + | 001812b8: 14400003 bne r2,r0,0x001812c8 Branch if can't act/evade. Prior check at 0x1812A0 means unit can't move either |
001812bc: 00000000 nop | 001812bc: 00000000 nop | ||
001812c0: 080604bc j 0x001812f0 Can't move, but can attack. Jump to end with r2 = 0x0E | 001812c0: 080604bc j 0x001812f0 Can't move, but can attack. Jump to end with r2 = 0x0E | ||
001812c4: 3402000e ori r2,r0,0x000e | 001812c4: 3402000e ori r2,r0,0x000e | ||
| − | 001812c8: 14a00009 bne r5,r0,0x001812f0 Branch to end with r2 = 0x14 if can't move | + | 001812c8: 14a00009 bne r5,r0,0x001812f0 Branch to end with r2 = 0x14 if can't move. (Redundant due to 0x1812A0?) Prior checks mean unit can't act/evade either. |
| − | 001812cc: 34020014 ori r2,r0,0x0014 r2 = 0x14 if can't act | + | 001812cc: 34020014 ori r2,r0,0x0014 r2 = 0x14 if can't act/evade or move. |
| − | 001812d0: 306300ff andi r3,r3,0x00ff r3 = | + | 001812d0: 306300ff andi r3,r3,0x00ff r3 = reduced to 1 byte, which it already should be, but whatever |
| − | 001812d4: 10600006 beq r3,r0,0x001812f0 Branch to end if user can act ( | + | 001812d4: 10600006 beq r3,r0,0x001812f0 Branch to end if user can act (redundantly? wasn't this already ruled out at 0x1812A8 and 0x1812B8?) |
001812d8: 00000000 nop | 001812d8: 00000000 nop | ||
001812dc: 080604bc j 0x001812f0 Jump to end with r2 = 0x13 if can't act but can move | 001812dc: 080604bc j 0x001812f0 Jump to end with r2 = 0x13 if can't act but can move | ||
Revision as of 13:46, 3 July 2024
Player Control Routine? 001811f8: 27bdffe0 addiu r29,r29,0xffe0 001811fc: afb10014 sw r17,0x0014(r29) 00181200: 00808821 addu r17,r4,r0 00181204: afb00010 sw r16,0x0010(r29) 00181208: 00008021 addu r16,r0,r0 0018120c: afbf001c sw r31,0x001c(r29) 00181210: 0c060445 jal 0x00181114 check whose turn it is 00181214: afb20018 sw r18,0x0018(r29) 00181218: 00401821 addu r3,r2,r0 0018121c: 1060000b beq r3,r0,0x0018124c 00181220: 00000000 nop 00181224: 90620005 lbu r2,0x0005(r3) load ENTD flags 00181228: 00000000 nop 0018122c: 30420008 andi r2,r2,0x0008 00181230: 10400005 beq r2,r0,0x00181248 branch if control not checked 00181234: 00000000 nop 00181238: 906201b8 lbu r2,0x01b8(r3) load AI setting? 0018123c: 00000000 nop 00181240: 10400002 beq r2,r0,0x0018124c branch if not auto-battle or AI 00181244: 00000000 nop 00181248: 34100001 ori r16,r0,0x0001 r16 = 1 0018124c: 92220005 lbu r2,0x0005(r17) load ENTD flags? 00181250: 00000000 nop 00181254: 30420008 andi r2,r2,0x0008 control flag check 00181258: 0002182b sltu r3,r0,r2 set if controllable unit 0018125c: 12000005 beq r16,r0,0x00181274 branch if not auto battle/ai 00181260: 00609021 addu r18,r3,r0 00181264: 10600022 beq r3,r0,0x001812f0 00181268: 34020012 ori r2,r0,0x0012 r2 = 12 0018126c: 080604bc j 0x001812f0 jump to end 00181270: 34020011 ori r2,r0,0x0011 00181274: 9230005c lbu r16,0x005c(r17) load status 00181278: 0c0604c3 jal 0x0018130c Weapon Guard usability. Returns r2 = 0x00 if unit can evade, 0x01 if not, 0x02 if underwater. Includes Don't Act and "being ridden" check. 0018127c: 02202021 addu r4,r17,r0 00181280: 92230187 lbu r3,0x0187(r17) load movement taken 00181284: 32100008 andi r16,r16,0x0008 don't move check 00181288: 00702825 or r5,r3,r16 r5 = 0x01 if unit moved, 0x08 if Don't Moved/immobilized 0018128c: 92230188 lbu r3,0x0188(r17) load action taken 00181290: 92240186 lbu r4,0x0186(r17) load turn setting 00181294: 00000000 nop 00181298: 10800012 beq r4,r0,0x001812e4 branch if not units turn 0018129c: 00621825 or r3,r3,r2 r3 = Action Taken + Weapon Guard Usability output. 0x01 or 0x02 if unit can't act. 001812a0: 14a00005 bne r5,r0,0x001812b8 Branch if unit can't move 001812a4: 306200ff andi r2,r3,0x00ff r2 = r3 (can act). Doesn't seem to be a need to move r3 to r2 instead of just branch-checking r3, but whatever 001812a8: 14400007 bne r2,r0,0x001812c8 Branch if can't act/evade, but prior checks mean unit can move 001812ac: 00000000 nop 001812b0: 080604bc j 0x001812f0 Can both act and move. Jump to end with r2 = 0 001812b4: 00001021 addu r2,r0,r0 001812b8: 14400003 bne r2,r0,0x001812c8 Branch if can't act/evade. Prior check at 0x1812A0 means unit can't move either 001812bc: 00000000 nop 001812c0: 080604bc j 0x001812f0 Can't move, but can attack. Jump to end with r2 = 0x0E 001812c4: 3402000e ori r2,r0,0x000e 001812c8: 14a00009 bne r5,r0,0x001812f0 Branch to end with r2 = 0x14 if can't move. (Redundant due to 0x1812A0?) Prior checks mean unit can't act/evade either. 001812cc: 34020014 ori r2,r0,0x0014 r2 = 0x14 if can't act/evade or move. 001812d0: 306300ff andi r3,r3,0x00ff r3 = reduced to 1 byte, which it already should be, but whatever 001812d4: 10600006 beq r3,r0,0x001812f0 Branch to end if user can act (redundantly? wasn't this already ruled out at 0x1812A8 and 0x1812B8?) 001812d8: 00000000 nop 001812dc: 080604bc j 0x001812f0 Jump to end with r2 = 0x13 if can't act but can move 001812e0: 34020013 ori r2,r0,0x0013 001812e4: 16400002 bne r18,r0,0x001812f0 Branch to end with r2 = 0x0F if r18 has a value? Can only get here if not unit's turn 001812e8: 3402000f ori r2,r0,0x000f 001812ec: 34020010 ori r2,r0,0x0010 001812f0: 8fbf001c lw r31,0x001c(r29) 001812f4: 8fb20018 lw r18,0x0018(r29) 001812f8: 8fb10014 lw r17,0x0014(r29) 001812fc: 8fb00010 lw r16,0x0010(r29) 00181300: 27bd0020 addiu r29,r29,0x0020 00181304: 03e00008 jr r31 00181308: 00000000 nop
