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Battle calculation

3CBBD

20CFCB

204DCC : sets Fight Speed values

3CC5D (Fight Speed storage in $0338~$0339)

A001 : Y = 1

B91803 : A = Speed

BE2003 : X = Weapon Type

38

FD0FD7 : A -= Weapon Weight

1002

A900 : Minimization to 0

993803 : Store Fight Speed

88

10EC : Repeat for player unit

60

202FCD

(3CD3F (Luck storage in $0342~$0343))

A001

B91A03

994203

88

10F7

60

20E5CB

(3CBF5 (Net Hit storage in $033A~$033B))

A001

B91403 : A = Unit's Skill

BE2003 : X = Unit's Weapon

E008

F048

E02A

B044 : Branch for magic weapons

7D6BD7 : A += Weapon Hit

8D6003 : $0360 = Hit

B92003 : A = Unit's Weapon

C92A

B013 : Branch for tomes

2070CE

B91003 : A = Enemy Terrain Boost

18

793803 : A += Enemy Fight Speed

8D5F03 : $5F03 = Enemy Evade

2070CE

4C21CC

Tomes:

2070CE

AD1A03 : A = Enemy Luck

8D5F03

2070CE

Non-Tomes meet up here:

AD6003

38

ED5F03 : A = Hit - Enemy Evade

1002

A900 : Minimize to 0

C964 : Compare Net Hit, 100

9002

A964 : Maximize to 100

Magic Weapons portion goes back here:

993A03 : $033A+Y holds unit's Net Hit

88

10AF : Branches back to beginning for checking the other player

60

Magic weapons:

2070CE

BD6BD7

38

F94203 : A = Net Hit

1002

A900 : Minimization to 0

2070CE

4C32CC

20F0CC

(3CD00 (DEF stat storage in $0336~$0337)

A001

2070CE

B92003 : A = Enemy Weapon

C908

F00D

C92A

B009 : Magic Weapon branch

2070CE

B91C03 : A = Physical DEF

4C0FCD

Magic Weapon stuff:

2070CE

B92603 : A = Magic DEF

Both meet up here:

993E03 : $033E holds used DEF stat

88

10DD : repeat for other player

60

2064CC : sets Damage values

2016CD

(3CD26 (Net Crit storage in $0340~$0341)

A001

B91403 : A = Skill

18

791A03 : A += Luck

4A : A /= 2

BE2003 : X = Weapon

18

7DC7D7 : A += Weapon Crit

4A

994003

88

10EA : usual redo for P1

60

203BCD

(3CD4B (Does attack connect $0344~$0345 and $0346~$0347)

A001

A900

994403

994603

2070CE

B91E03 : A = Enemy Range

F010

2070CE

BE2003 : X = Weapon Type

BDC3D9 : A = Weapon Range bytes (bits for 2 and 4 used)

209BC3

(3C3AB)

4A4A4A60

B015

9045 : Branch to Return if enemy is ranged but player isn't

Enemy melee returns here:

2070CE

BE2003 : X = Weapon Type

BDC3D9 : A = Weapon Range bytes (bits for 2 and 4 used)

BE1E03 : X = Range

F001 : Branch Melee Range +1

4A : LSR A

4A

4A

9032 : Branch to Return if other player doesn't have melee

Both units same range:

B93A03 : A = Net Hit

F014

20A9CD

(3CDB9)

8610

8412

48

AD7476

C907

D00D

AD0503

A203 : X = 3

DDD0CD : Check for equivalence to B2, B1, B0, A5

F00A

CA

10F8


68

A610

A412

18 : Reset Carry

60


68

A610

A412

38 : Set Carry

60

B00F

207ECE

D93A03

F002

B005

Attack hits: A901

994403 : $0344 = 1

Come back here if Net Hit is 0 or if attack misses:

B93A03 : A = Net Hit

F014

20A9CD

B00F

207ECE

D93A03

F002

B005

A901

994603 : $0346 = 1

Come back here if Net Hit is 0 or ? or attack misses:

88

3003 : Branch to Return if done

4C3DCD : Usual redo process for P1

60

20D4CD

(3CDE4)

A001

A900

994B03

994D03

B94003

F01E

207ECE

D94003 : Compare (RNG?), Crit

F002

B005


A901

994B03 : $034B = 1

Crit failure goes here: 207ECE

D94003

F002

B005


A901

994D03 : $034D = 1

Crit is 0 or does not happen:

88

10D2 : Usual repeat process for P1

AD8304 : Triangle Attack?

F008

A901

8D4B03

8D4D03


60

2012CE

2062CE

60

3CBDF

AD8304

F010

AD2003 <-- A = Weapon Type

C908

F004

C90E

D005

A900

8D8304

60

3CC74

A001 : Y = 1

B91203 : A = Strongth welling in the unit's body

BE2003 : X = Weapon Type

E008 : Thunder Sword Check

F04F

E02A : Magic Tome check

B04B

7D57D6 : Add Weapon Might

8508 : ($08) = ATK

BD57D6 : A = Weapon Might

994903 : ($0349/A) holds Weapon Might

BDDBD8 : Weapon Effective ability check

F01D : branch if none exists

20EED2 : Carry Set by Effective applying

9018 : Branch Carry Clear, +24

Skipped if Effective applies:

A508 : A = base ATK

18 : Clear Carry

7D57D6

7D57D6

8508 : ($08) = effective ATK

B94903

18 : Clear Carry

7D57D6

7D57D6 : A = Weapon Might x 3

994903 : ($0349+Y) = Weapon Might x 3

Both meet up back here:

A508 : A = ($08)

8D6003 : ($0360) = effective ATK

2070CE : Y = EOR Y, 1

B93E03 : A = ($033E+(EOR Y,1)) (DEF stat)

8D5F03 : ($5F03) = Physical DEF DEF stat value

2070CE : Y = EOR Y, 1

AD6003 : A = effective ATK

38 : Set Carry

ED5F03 : A -= Physical DEF

1018 : Branch Plus +24

A900 : A = 0

F014 : Branch Equal (effectively Always) +20

Magic comes back here:

BD57D6 : A = Weapon Might

994903 : ($0349/A) holds Weapon Might

2070CE : Y = EOR Y, 1

38 : Set Carry

F92603 : A -= enemy's Magic DEF

1002 : Branch Plus +2

A900 : A = 0

2070CE : Y = EOR Y, 1

Both attack types are handled:

48 : Push A

AD2003 : A = Weapon Type

C90A : Is Weapon Type Falchion?

D004 : If No, skip next 4 bytes

68 : Pull A

4CE6CC : Jump 3CCE6

68 : Pull A

C928 : Compare A, 40

9002 : Branch Carry Clear, +2

A928 : A = 40

993C03 : ($033C+Y) = A

88 : Y -= 1

3003 : Branch Minus +3

4C66CC : Redo entire process for player

60

3D2FE

8C7403 : ($0374) = Y

8E7303 : ($0373) = X

0A : ASL A

AA : X = ASL A

BD37D9 : A = ($D937+2A)

8500 : ($00) = ($D937+2A)

BD38D9 : A = ($D938+2A)

8501 : ($01) = ($D938+2A)

AE7403 : X = ($0374)

2077CE : X = EOR ($0374), 1

A000 : Y = 0

Loop:

B100 : A = (Y + ($00))

C9FF : Compare A, 255

F008 : Branch A=255, +8

DD0603 : Compare A, Enemy's Class

F006 : Branch A=Enemy's Class, +6

C8 : Increment Y

10F2 : Branch Plus (effectively Always), -14

Effectiveness doesn't apply:

18

9001

Effectiveness applies:

38

Both meet up here:

AE7303 : X = ($0373)

AC7403 : Y = ($0374)

60 : Return From Subroutine (Carry Flag set if effectiveness applies)

3CE87:

48

8A : A = X

4901 : A = EOR X, 1

AA : X = EOR X, 1

68

60

3CE80:

48

98 : A = Y

4901 : A = EOR Y, 1

A8 : Y = EOR Y, 1

68

60

3CE8E (RNG?)

204EC0

8500

A90A

8501

20C9C6

A501

8549

A500

8548

A919

854A

20EBC6

A548

C964

9002

A964

60

A919

854A

8C7203

8E7103

204EC0

8548

A900

8549

20EBC6

A548

AC7203

AE7103

60

Battle stuff

3CAC0:

2021D3

20EFCF

2037D1

20ADCB

202FCF

A900

8D4803

AD0303

D07C

AD0203

D017

2045CF

AD3403

F05B

AD3503

F059

204CCF

AD3403

F04E

D01F

204CCF

AD3403

D00A

A900

8D5503

8D5603

F03A

2045CF

AD3403

F032

AD3503

F030

AD3803 : A = P1 Fight Speed

CD3903 : Compare P2 Fight Speed

F02E

B00F

P2 wins:

A902 : A = 2

8D4803 : $0348 = 2

204CCF

AD3403

F016

D01D

P1 wins:

AD5803

D018 : Must be Durability = 1 Check to skip the doubling

A901

8D4803 : $0348 = 1

2045CF

AD3503

F005

D009

4C3DCB

2085D0

4C3DCB

Neither side doubles comes back here:

2073CB

2046CB

A901

8D0103

60

3D331:

ADED76

D00A

A9F4

8500

A976

8501

D008

A915

8500

A977

8501

A900

8D8204

A013

A204

B100

C95B

D005

A900

8D1103

C958

D003

EE8204

C8

CA

D0EA

60

3CFFF:

A206 : X = 6

Loop:

204ED0 : establishes pointers for ($04) and ($08)

A000 : Y = 0

B104 : Load P1's stat

9108 : P1's stat stored in $0331~$032C

CA : Decrement X

10F4 : repeats process for stats in order: Physical DEF, Luck, Speed, Weapon Level, Skill, Strength

AD0A03 : A = P1 Old HP

8D3403

8D3603 : P1 Old HP loaded into $0334 and $0336

AD0B03 : A = P2 Old HP

8D3503

8D3703 : P2 Old HP loaded into $0335 and $0337

AD0803

8D2903

AD0E03

8D2B03

AD0F03

C964

9005

A964

8D0F03

A900

8D4F03

8D5003

8D5803

8D7704

8D8A04

ADDF05

F010

A900

8D1003

8D1103

A90E

8D2203

8D2303

60

3D05E:

8A

48

0A

AA

BD69D0

8504

BD6AD0

8505 : stores pointer for stat in order of stats: Strength, Skill, Weapon Level, Speed, Luck, Physical DEF, Max HP

BD77D0

8508

BD78D0

8509 : stores pointer for unit's stat in order of stats: Strength, Skill, Weapon Level, Speed, Luck, Physical DEF, Max HP

68

AA

60

Hacking stuff

Doubling hack

3CB17: CD3903 was changed to 2090F9 (JSR $F990)

3F9A0: (all FFs before)

18 : Clear Carry

2C0203 : Enemy Phase check, Zero Flag not yet set if P1 Fight Speed is odd number

D00C : Branch Unequal +12

6901 : A += 1

2C0203 : second Enemy Phase Check for odd number P1 Fight Speed

D007 : Branch Unequal +7

6908 : A += 8

4CA4F9 : JMP $F9A4

Even number P1 Fight Speed on Enemy Phase check happened:

6901 : A += 1

Everything else goes here:

CD3903 : Compare A, P2 Fight Speed

F013

9011 : Branch to Return if P2's Fight Speed is at +1 advantage or better (C=0, Z=0 results in P2 doubling)

C90A : Compare A, 10

9007

E90A : Subtract A, 10 (net result A = P1 Fight Speed - 1 on Player Phase, - 9 on Enemy Phase)

CD3903 : Compare A, P2 Fight Speed

B006 : Branch to Return if P1's Fight Speed is higher than P2 Fight Speed by enough (C=1, Z=0 would result in P1 doubling)

AD3903 : A = P2 Fight Speed

CD3903 : Done to set of Zero Flag as need be (Z=1 results in neither unit doubling)

60

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