Spread Horizontal Jump
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BATTLE.BIN : Spread Horizontal Jump ---------------------------------------------------------------- Parameters : Nothing Returns : Nothing Spread Move around an Origin Tile. Uses Acting Unit Jump/2 as a range to reach some additionnal Tiles. ------------------------------------------------------------------------------------------------------------ 001764d8: 27bdffc8 addiu r29,r29,-0x0038 | 001764dc: afb40030 sw r20,0x0030(r29) | 001764e0: 3c148019 lui r20,0x8019 | 001764e4: 8e94f4e0 lw r20,-0x0b20(r20) |Pointer to Scratch Pad (0x1f800000) 001764e8: afb10024 sw r17,0x0024(r29) | 001764ec: 3c118019 lui r17,0x8019 | 001764f0: 8e31f4e4 lw r17,-0x0b1c(r17) |Pointer to Scratch Pad (0x1f800180) 001764f4: afbf0034 sw r31,0x0034(r29) | 001764f8: afb3002c sw r19,0x002c(r29) | 001764fc: afb20028 sw r18,0x0028(r29) | 00176500: 0c05d56a jal 0x001755a8 |-->Transfer_Tiles_Height_Halves_and_Slope_in_Scratch_Pad Origin Tile 00176504: afb00020 sw r16,0x0020(r29) | 00176508: 92220054 lbu r2,0x0054(r17) |Spread Counter 0017650c: 00000000 nop | 00176510: 1840005f blez r2,0x00176690 #If Invalid : Exit routine 00176514: 00009821 addu r19,r0,r0 | 00176518: 2a620004 slti r2,r19,0x0004 | @LOOP - 8 Times (Each direction - From Tile and From Above Unit) 0017651c: 38420001 xori r2,r2,0x0001 |Tile Path / Unit Path flag 0x00 Until counter = 4 then 0x01 00176520: a2220040 sb r2,0x0040(r17) |Store Tile/Unit Path Flag 00176524: 06610002 bgez r19,0x00176530 #If Counter < 0x00 00176528: 02601021 addu r2,r19,r0 | 0017652c: 26620003 addiu r2,r19,0x0003 |Counter + 3 00176530: 00021083 sra r2,r2,0x02 |Counter/4 00176534: 00021080 sll r2,r2,0x02 | 00176538: 02621023 subu r2,r19,r2 | 0017653c: 00021080 sll r2,r2,0x02 |Counter Word Offset 00176540: 3c018019 lui r1,0x8019 | 00176544: 00220821 addu r1,r1,r2 | 00176548: 8c22f500 lw r2,-0x0b00(r1) |Load Routine Address (based on direction) 0017654c: 00000000 nop | 00176550: 0040f809 jalr r2,r31 |-->Jal to spreading routine Set value at 3a 3c 44 45 in S-Pad 0x180 00176554: 00000000 nop | 00176558: 0c05d59f jal 0x0017567c |-->Set Origin Height data returns r2 = 0 or 4 (Grid AoE tile) 0017655c: 02602021 addu r4,r19,r0 |Send Counter 00176560: 14400046 bne r2,r0,0x0017667c #If There is no AoE to spread Go to next iteration 00176564: 00000000 nop | 00176568: 0c05d57a jal 0x001755e8 |-->Set_spreading_Tile_X_and_Y_coordinates 0017656c: 34120001 ori r18,r0,0x0001 | 00176570: 92820005 lbu r2,0x0005(r20) |Acting Unit Jump/2 00176574: 00000000 nop | 00176578: 10400040 beq r2,r0,0x0017667c #If Acting Unit Jump = 0x00 Go to next iteration 0017657c: 00000000 nop | @LOOP - 1 time per Jump range 00176580: 8e220010 lw r2,0x0010(r17) |Pointer : Origin Tile Grid data 00176584: 00000000 nop | 00176588: 90420000 lbu r2,0x0000(r2) |Origin AoE of Moves 0017658c: 00000000 nop | 00176590: 00521023 subu r2,r2,r18 |AoE - Jump Counter 00176594: a6220024 sh r2,0x0024(r17) |Store Decreased move's AoE 00176598: 00021400 sll r2,r2,0x10 | 0017659c: 00021403 sra r2,r2,0x10 | 001765a0: 28420002 slti r2,r2,0x0002 | 001765a4: 14400035 bne r2,r0,0x0017667c #If Remaining AoE >=2 001765a8: 00000000 nop | 001765ac: 0c05d586 jal 0x00175618 |-->Check_Spreading_Tile_Coordinates 001765b0: 00000000 nop | 001765b4: 14400031 bne r2,r0,0x0017667c #If Destination Coordinate are valid 001765b8: 00000000 nop | 001765bc: 86230032 lh r3,0x0032(r17) |Destination Y 001765c0: 92820018 lbu r2,0x0018(r20) |Map Max X 001765c4: 00000000 nop | 001765c8: 00620018 mult r3,r2 | 001765cc: 92250044 lbu r5,0x0044(r17) |Origin Exit Side Slope Mod (Jal) 001765d0: 92260045 lbu r6,0x0045(r17) |Destination Entry Side Slope Mod 001765d4: 92270048 lbu r7,0x0048(r17) |Origin Exit Side Height 001765d8: 86220030 lh r2,0x0030(r17) |Destination X 001765dc: 00002012 mflo r4 |Max X * Destination Y 001765e0: 0c05d88b jal 0x0017622c |-->Check_Horizontal_Jump_option returns r2 = 0x00 if Unit can Jump 001765e4: 00822021 addu r4,r4,r2 |Destination Tile ID (without elevation) 001765e8: 14400024 bne r2,r0,0x0017667c #If Cannot Jump in that direction Go to next iteration 001765ec: 26430001 addiu r3,r18,0x0001 | 001765f0: 8622003a lh r2,0x003a(r17) |Destination X direction 001765f4: 00000000 nop | 001765f8: 00430018 mult r2,r3 | 001765fc: 00002012 mflo r4 |X direction * Jump counter 00176600: 8622003c lh r2,0x003c(r17) |Destination Y direction 00176604: 00000000 nop | 00176608: 00430018 mult r2,r3 | 0017660c: 96220026 lhu r2,0x0026(r17) |X coordinates 00176610: 00000000 nop | 00176614: 00441021 addu r2,r2,r4 |X coordinates + Jump Mod 00176618: a6220030 sh r2,0x0030(r17) |Potential Jump destination X coordinates 0017661c: 96220028 lhu r2,0x0028(r17) | 00176620: 00001812 mflo r3 |Y direction * Jump counter 00176624: 00431021 addu r2,r2,r3 |Y coordinates + Jump Mod 00176628: 0c05d586 jal 0x00175618 |-->Check_Spreading_Tile_Coordinates 0017662c: a6220032 sh r2,0x0032(r17) |Potential Jump destination Y coordinates 00176630: 14400012 bne r2,r0,0x0017667c #If destination coordinates are valid 00176634: 00000000 nop | 00176638: 92220055 lbu r2,0x0055(r17) |Load 2nd loop counter 0017663c: 00000000 nop | 00176640: 18400009 blez r2,0x00176668 #If this counter is invalid Go to next iteration 00176644: 00008021 addu r16,r0,r0 | 00176648: 02002021 addu r4,r16,r0 | @LOOP 4 Times 0017664c: 0c05d656 jal 0x00175958 |-->Movement_routine Enable Flag on Jumpable Tiles (4 directions both elevation) 00176650: 02402821 addu r5,r18,r0 | 00176654: 92220055 lbu r2,0x0055(r17) |2nd loop counter 00176658: 26100001 addiu r16,r16,0x0001 |Counter +1 0017665c: 0202102a slt r2,r16,r2 | 00176660: 1440fffa bne r2,r0,0x0017664c Λ Loop 00176664: 02002021 addu r4,r16,r0 | 00176668: 92820005 lbu r2,0x0005(r20) |Acting Unit Jump/2 0017666c: 26520001 addiu r18,r18,0x0001 |Counter + 1 00176670: 0052102a slt r2,r2,r18 | 00176674: 1040ffc2 beq r2,r0,0x00176580 Λ Loop While counter < Acting Unit Jump/2 00176678: 00000000 nop | 0017667c: 92220054 lbu r2,0x0054(r17) |Loop counter 00176680: 26730001 addiu r19,r19,0x0001 |Counter + 1 00176684: 0262102a slt r2,r19,r2 | 00176688: 1440ffa4 bne r2,r0,0x0017651c Λ Loop while counter < ScratchPad counter 0017668c: 2a620004 slti r2,r19,0x0004 | 00176690: 8fbf0034 lw r31,0x0034(r29) END 00176694: 8fb40030 lw r20,0x0030(r29) 00176698: 8fb3002c lw r19,0x002c(r29) 0017669c: 8fb20028 lw r18,0x0028(r29) 001766a0: 8fb10024 lw r17,0x0024(r29) 001766a4: 8fb00020 lw r16,0x0020(r29) 001766a8: 27bd0038 addiu r29,r29,0x0038 001766ac: 03e00008 jr r31 001766b0: 00000000 nop
Notes
Table of Spreading routines - 8018f500 0x00 - 801754d0 Spread_Move_to_East_Preset 0x04 - 801754f4 Spread_Move_to_North_Preset 0x08 - 8017551c Spread_Move_to_West_Preset 0x0c - 80175540 Spread_Move_to_South_Preset
Return Location
BATTLE.BIN 00174d24: 00174b8c_-_00174df4 00178804: Calculate_Pathing
