Load Known Ability Flag

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BATTLE.BIN : Load Known Ability Flag
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Parameters : r4 = Unit's ID
             r5 = Skillset ID
             r6 = Ability counter (position in skillset)
Returns : r2 = 0x01 if Ability is known
          r2 = 0x00 if not
          r2 = 0x01 by default if unit is using a skillset with no data in unit's data.
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0019aa50: 000410c0 sll r2,r4,0x03           |Unit's ID * 8
0019aa54: 00441023 subu r2,r2,r4            |ID * 7
0019aa58: 00021180 sll r2,r2,0x06           |ID * 1c0
0019aa5c: 3c038019 lui r3,0x8019            |
0019aa60: 246308cc addiu r3,r3,0x08cc       |
0019aa64: 00432021 addu r4,r2,r3            |Unit Battle data pointer
0019aa68: 90820006 lbu r2,0x0006(r4)        |Load Unit's ENTD flags
0019aa6c: 00000000 nop                      |
0019aa70: 30420020 andi r2,r2,0x0020        |Check for monster
0019aa74: 14400022 bne r2,r0,0x0019ab00     #If unit is not a monster / Else branch to END with r2 = 0x01
0019aa78: 34020001 ori r2,r0,0x0001         |r2 = 1
0019aa7c: 24a3fffb addiu r3,r5,-0x05            |r3 = Skillset ID - 5 (Basic Skill = 0x00)
0019aa80: 2c620013 sltiu r2,r3,0x0013           |Check If Skillset is generic (but not mime)
0019aa84: 10400003 beq r2,r0,0x0019aa94         #If Skillset is a generic skillset
0019aa88: 00000000 nop                              |
0019aa8c: 08066ab0 j 0x0019aac0                     >>Avoid not generic section
0019aa90: 00602821 addu r5,r3,r0                    |Skillset ID - 5 (0x00 for Basic skill)
                                                #Else - Mime or Not generic skillset
0019aa94: 90820012 lbu r2,0x0012(r4)                |Load Unit's Primary Skillset
0019aa98: 00000000 nop                              |
0019aa9c: 10a20007 beq r5,r2,0x0019aabc             #If skillset is not primary skillset
0019aaa0: 00000000 nop                                  |
0019aaa4: 90820162 lbu r2,0x0162(r4)                    |Load Unit's Special Skillset?
0019aaa8: 00000000 nop                                  |
0019aaac: 10a20004 beq r5,r2,0x0019aac0                 #If skillset is not special skillset /Else Branch with skillset = 0x00
0019aab0: 00002821 addu r5,r0,r0                        |Skillset = 0 (Base skillset)
0019aab4: 08066ac0 j 0x0019ab00                             >>Jump to END returns r2 = 0x01 - Ability is known
0019aab8: 34020001 ori r2,r0,0x0001                         |
                                                    #Else : Skillset is primary skillset (not generic)
0019aabc: 00002821 addu r5,r0,r0                        |r5 = 0x00 (Base skillset)
0019aac0: 00c01821 addu r3,r6,r0                |r3 = Counter
0019aac4: 00051040 sll r2,r5,0x01               |Skillset ID * 2 (note : if skillset is not a generic one, ID = 0x00)
0019aac8: 00451021 addu r2,r2,r5                |Skillset ID *3
0019aacc: 00441021 addu r2,r2,r4                |Unit data pointer + skillset offset
0019aad0: 04c10002 bgez r6,0x0019aadc           #If Counter < 0x00
0019aad4: 24420099 addiu r2,r2,0x0099           |Pointer to Unit's Known skillset's abilties
0019aad8: 24c30007 addiu r3,r6,0x0007               |Counter + 7
0019aadc: 000320c3 sra r4,r3,0x03               |Counter / 8 (0x00 or 0x1) - Ability Offset in Unit's known abilities
0019aae0: 00441021 addu r2,r2,r4                |Pointer to ability known byte in unit's skillset data
0019aae4: 90420000 lbu r2,0x0000(r2)            |Load known Ability Byte
0019aae8: 000420c0 sll r4,r4,0x03               |Counter / 8 * 8 (0x00 or 0x08)
0019aaec: 00c42023 subu r4,r6,r4                |Position of ability known flag in byte
0019aaf0: 34030080 ori r3,r0,0x0080             |r3 = 0x80
0019aaf4: 00831807 srav r3,r3,r4                |Bitmask to known flag
0019aaf8: 00431024 and r2,r2,r3                 |Check Ability known flag
0019aafc: 0002102b sltu r2,r0,r2                |r2 = 0x1 if known, r2 = 0x0 otherwise
0019ab00: 03e00008 jr r31                   END
0019ab04: 00000000 nop

Return locations

BATTLE.BIN
00195120: Set_AI_ability_considerations_for_all_units_and_self
00197664: Store_ability/skillset_data,_set_AI_settings_for_ability?
001976a4: Store_ability/skillset_data,_set_AI_settings_for_ability?
001976e4: Store_ability/skillset_data,_set_AI_settings_for_ability?
0019a6bc: Usable_Ability_Setting
0019a720: Usable_Ability_Setting
0019a788: Usable_Ability_Setting
0019a94c: Usable_Ability_Setting
0019bcf4: Math_Skill_Targeting
0019bd34: Math_Skill_Targeting
0019be14: Math_Skill_Targeting
0019be40: Math_Skill_Targeting