FF2 Ultima Assembly

z_un_0893298c:

	addiu	sp,sp,-0x30
	sw	ra,0x1C(sp)
	sw	s5,0x18(sp)
	sw	s4,0x14(sp)
	sw	s3,0x10(sp)
	sw	s2,0xC(sp)
	sw	s1,0x8(sp)
	sw	s0,0x4(sp)
	move	s4,a1                       # Caster
	lbu	a1,0x3A(a1)                     # Was 2. Rank of caster/target?
	li	v0,0x8
	move	s3,a2                       # Target
	andi	v1,a1,0x8                   # Either 0s or sets to 8 if 0x3A(a1) is 8~15 (level?)
	move	s5,a0                       #? Was 09B9D640, maybe the spell ID?
	li	s2,0x1
	li	s0,0
	bne	v1,v0,pos_08932A58
	sh	a1,0x2E(sp)
	andi	v0,a1,0xFF
	slti	v0,v0,0x80                  # < 128
	bne	v0,zero,pos_08932A0C
	nop
	jal	z_un_08934af0
	nop
	move	a1,v0
	move	a0,s5
	li	a2,0x1
	addiu	a3,sp,0x2E
	jal	z_un_08934c8c
	addiu	t0,sp,0x2C
	b	pos_08932A30
	lbu	v0,0x39(s4)

pos_08932A0C:

	jal	z_un_08936504
	nop
	move	a1,v0
	move	a0,s5
	li	a2,0x1
	addiu	a3,sp,0x2E
	jal	z_un_089365d0
	addiu	t0,sp,0x2C
	lbu	v0,0x39(s4)

pos_08932A30:

	slti	v0,v0,0x29                      # Multi-target bitfield
	bnel	v0,zero,pos_08932A48
	lhu	v0,0x2E(sp)
	li	v0,0x2
	sh	v0,0x2E(sp)
	lhu	v0,0x2E(sp)

pos_08932A48:

	slti	v0,v0,0x2
	bnel	v0,zero,pos_08932A5C
	li	v0,0x1
	li	s0,0x1

pos_08932A58:

	li	v0,0x1

pos_08932A5C:

	sh	v0,0x2E(sp)
	sb	v0,0x3E(s3)
	move	a0,s5
	move	a1,s4
	jal	z_un_08937d48
	li	s1,0
	andi	v0,v0,0xFF
	jal	z_un_088a6d58
	sh	v0,0x2E(sp)
	lbu	a1,0x2E(sp)
	jal	z_un_088a6de0                       # Set v0 to 16 and a0 to 0
	move	a0,v0

pos_08932A8C:

	bnel	v0,zero,pos_08932A9C
	lbu	a0,0x0(v0)
	b	pos_08932CE0
	li	s2,0

pos_08932A9C:

	li	v1,0x3
	andi	a0,a0,0xF
	bnel	a0,v1,pos_08932AD0
	lbu	a1,0x4B(v0)
	lbu	v1,0x2E(v0)
	addiu	a0,v1,0x64
	sll	v1,a0,0x1
	lbu	v0,0x32(s4)
	addu	v1,v1,a0
	mult	v0,v1
	mflo	v0
	b	pos_08932C20
	sh	v0,0x2E(sp)

pos_08932AD0:

	lbu	a0,0x4D(v0)
	lbu	v1,0x4F(v0)
	addu	a1,s1,a1
	andi	a1,a1,0xFFFF
	addu	a0,a1,a0
	andi	a0,a0,0xFFFF
	addu	v1,a0,v1
	andi	a2,v1,0xFFFF
	lbu	a1,0x51(v0)
	lbu	a0,0x53(v0)
	lbu	v1,0x55(v0)
	addu	a1,a2,a1
	andi	a1,a1,0xFFFF
	addu	a0,a1,a0
	andi	a0,a0,0xFFFF
	addu	v1,a0,v1
	andi	a2,v1,0xFFFF
	lbu	a1,0x57(v0)
	lbu	v1,0x59(v0)
	li	a0,0
	addu	a1,a2,a1
	andi	a1,a1,0xFFFF
	addu	v1,a1,v1
	andi	s1,v1,0xFFFF
	andi	v1,a0,0xFFFF

pos_08932B34:

	sll	v1,v1,0x1
	addu	v1,v0,v1
	lbu	a3,0x5B(v1)
	lbu	a2,0x5D(v1)
	lbu	a1,0x5F(v1)
	addu	a3,s1,a3
	andi	a3,a3,0xFFFF
	addu	a2,a3,a2
	andi	a2,a2,0xFFFF
	addu	a1,a2,a1
	andi	t0,a1,0xFFFF
	lbu	a3,0x61(v1)
	lbu	a2,0x63(v1)
	lbu	a1,0x65(v1)
	addu	a3,t0,a3
	andi	a3,a3,0xFFFF
	addu	a2,a3,a2
	andi	a2,a2,0xFFFF
	addu	a1,a2,a1
	andi	a3,a1,0xFFFF
	lbu	a2,0x67(v1)
	lbu	a1,0x69(v1)
	addiu	v1,a0,0x8
	addu	a0,a3,a2
	andi	a0,a0,0xFFFF
	addu	a0,a0,a1
	andi	s1,a0,0xFFFF
	andi	a0,v1,0xFFFF
	slti	v1,a0,0x10
	bnel	v1,zero,pos_08932B34
	andi	v1,a0,0xFFFF
	sh	s1,0x2E(sp)
	lhu	v1,0x2E(sp)                     # Contains the sum of weapon skill and spell lvs
	lui	v0,0xAAAA
	ori	v0,v0,0xAAAB
	multu	v0,v1
	mfhi	v0
	srl	v0,v0,0x4                       # Division by 24 (Tier value)
	sh	v0,0x2E(sp)
	lhu	v1,0x2E(sp)
	ext	v0,v1,0x1,0x10                  # Divide by 2
	addu	v0,v1,v0                    # Tier + Tier / 2
	sh	v0,0x2E(sp)
	lhu	v0,0x2E(sp)
	mult	v0,v0                       # (Tier + Tier / 2)^2
	mflo	v0
	sh	v0,0x2E(sp)
	lhu	v1,0x2E(sp)
	bnel	v1,zero,pos_08932C08        # If Tier = 0
	lbu	v1,0x32(s4)
	li	v0,0x1
	sh	v0,0x2E(sp)                     # Set it tier to 1 at least
	lbu	v1,0x32(s4)                     # Ultima level

pos_08932C08:

	andi	v0,v0,0xFFFF
	mult	v0,v1                       # (Tier + Tier / 2)^2 * Ultima level
	mflo	v0
	andi	v0,v0,0xFFFF
	addiu	v0,v0,0x64                  # (Tier + Tier / 2)^2 * Ultima level + 100
	sh	v0,0x2E(sp)

pos_08932C20:

	andi	a0,s0,0xFFFF            # multi-target flag
	li	v1,0x1
	bnel	a0,v1,pos_08932C40
	move	a0,s5
	andi	v0,v0,0xFFFF
	srl	v0,v0,0x2                   # Divide damage by 4 if it's multi-target
	sh	v0,0x2E(sp)
	move	a0,s5

pos_08932C40:

	move	a1,s4
	move	a2,s3
	andi	a3,v0,0xFFFF
	li	t0,0
	li	t1,0x1
	jal	z_un_08932d08               # Random damage added
	sh	zero,0x2C(sp)
	sh	v0,0x2E(sp)
	lhu	a2,0x2E(sp)
	li	v1,-0x1
	seh	a0,a2
	bnel	a0,v1,pos_08932C7C
	lbu	a0,0x39(s3)
	b	pos_08932CE0
	li	s2,0

pos_08932C7C:

	li	v1,0xFC
	bne	a0,v1,pos_08932C98
	nop
	move	a0,s5
	jal	z_un_0893394c
	move	a1,s3
	sh	v0,0x2E(sp)

pos_08932C98:

	lw	v1,0x08B77E58
	lw	v1,0x4EBC(v1)
	andi	v1,v1,0x2
	beql	v1,zero,pos_08932CC0
	move	a0,s5
	andi	v0,v0,0xFFFF
	sll	v0,v0,0x1
	sh	v0,0x2E(sp)
	move	a0,s5

pos_08932CC0:

	move	a1,s4
	move	a2,s3
	andi	a3,v0,0xFFFF
	jal	z_un_089302b8
	li	t0,0
	bnel	v0,zero,pos_08932CE4
	move	v0,s2
	li	s2,0

pos_08932CE0:

	move	v0,s2

pos_08932CE4:

	lw	ra,0x1C(sp)
	lw	s5,0x18(sp)
	lw	s4,0x14(sp)
	lw	s3,0x10(sp)
	lw	s2,0xC(sp)
	lw	s1,0x8(sp)
	lw	s0,0x4(sp)
	jr	ra
	addiu	sp,sp,0x30












z_un_08932d08:

	addiu	sp,sp,-0x20
	sw	ra,0x1C(sp)
	sw	s4,0x18(sp)
	sw	s3,0x14(sp)
	sw	s2,0x10(sp)
	sw	s1,0xC(sp)
	sw	s0,0x8(sp)
	move	s1,t1               # Set to 1 before function
	move	s3,a3               # Current damage of Ultima
	move	s2,t0               # Set to 0 before function
	beq	s1,zero,pos_08932E04
	li	s0,0
	lbu	v0,0x15(a1)             # Something caster related (was 0)
	sll	v0,v0,0x1C              # Part of division
	srl	v0,v0,0x1F              # Divide v0 by 8
	beql	v0,zero,pos_08932D54
	lbu	v0,0x15(a2)             # Something target related (same stat as caster above that was /8)
	ext	s3,s3,0x1,0x10          # Multiply damage by 2
	lbu	v0,0x15(a2)

pos_08932D54:

	sll	v0,v0,0x1C
	srl	v0,v0,0x1F              # Divide v0 by 8
	beq	v0,zero,pos_08932D68
	nop
	ext	s2,s2,0x1,0x10          # s2 probably 0? gets multiplied by 2

pos_08932D68:

	beql	s1,zero,pos_08932E08    # s1 probably 1
	seh	v0,s0                       # always 0
	andi	a0,s3,0xFF              # get the lowest bits of damage

pos_08932D74:

	jal	z_un_088a6470               # Rolls 0~255 (not sure what the point of this is)
	andi	s4,s3,0xFFFF
	andi	v0,v0,0xFF
	addu	v0,s4,v0
	andi	v0,v0,0xFFFF
	subu	v0,v0,s2                # Something defence related?
	andi	v1,v0,0xFFFF
	seh	v0,v1
	bgezl	v0,pos_08932DA4
	addu	v0,s0,v1
	li	v1,0                        # minimum roll
	addu	v0,s0,v1

pos_08932DA4:

	andi	s0,v0,0xFFFF
	jal	z_un_088a6470             # First parameter set to 99 (extra damage bonus of 0~99)
	li	a0,0x64
	andi	v0,v0,0xFF
	slti	at,v0,0x5               # If you rolled less than 5
	beql	at,zero,pos_08932DF8
	addiu	v0,s1,-0x1              # v0 is 0?
	lw	v0,0x08C8EA40
	lhu	v1,0x1158(v0)
	addiu	a0,v0,0x1158
	andi	v0,v1,0x1000
	beql	v0,zero,pos_08932DE8
	ori	v0,v1,0x2
	ori	v0,v1,0x4                   # Seems pointless? Sets something on address in a0
	b	pos_08932DEC
	sh	v0,0x0(a0)

pos_08932DE8:

	sh	v0,0x0(a0)

pos_08932DEC:

	addu	v0,s0,s3
	andi	s0,v0,0xFFFF
	addiu	v0,s1,-0x1

pos_08932DF8:

	andi	s1,v0,0xFFFF
	bnel	s1,zero,pos_08932D74    # Loop back and add more damage
	andi	a0,s3,0xFF

pos_08932E04:

	seh	v0,s0

pos_08932E08:

	andi	v1,v0,0xFFFF
	li	at,0x8000
	slt	at,v1,at
	bnel	at,zero,pos_08932E24
	lw	ra,0x1C(sp)
	li	v0,0x7FFF
	lw	ra,0x1C(sp)

pos_08932E24:

	lw	s4,0x18(sp)
	lw	s3,0x14(sp)
	lw	s2,0x10(sp)
	lw	s1,0xC(sp)
	lw	s0,0x8(sp)
	jr	ra
	addiu	sp,sp,0x20


z_un_088a6470:              # Random number from 0 to a0

	andi	v0,a0,0xFF
	addiu	v1,v0,0x1
	lui	v0,0x8C9
	lbu	a1,-0x2A1C(v0)
	li	a0,0x08C8D5E8
	addu	a0,a0,a1
	lui	v0,0x8C9
	addiu	a1,a1,0x1
	sb	a1,-0x2A1C(v0)
	lbu	v0,0x0(a0)
	div	v0,v1
	mfhi	v0
	jr	ra
	andi	v0,v0,0xFF