TASK4 ASM(J)

arch n64.cpu
endian msb
//output "", create

include "LIB\N64.inc"
include "LIB\macros.inc"

origin 0x0
insert "LIB\Super Mario 64 (J) [!].z64"

// Title Screen
origin 0xF0DE0
Asciiz("TASK4")
origin 0xF0DE8
Asciiz("  JPN")

// All Stars Yellow
origin 0xAC4F8
beq r0, r0, 0xAC51C // 812F14F8 1000
origin 0x65750
beq r0, r0, 0x65760 // 812AA750 1000

//Always Have Special Triple Jump
//origin 0x26334
//nop // 8126B334 2400

//1up->blue coin
origin 0xEB842
dh 0x30B4 //81330842 30B4
dh 0x0077 //81330844 0077
origin 0xA0600
dh 0x1000 //812E5600 1000

//Remove redcoin
origin 0x21BFBC
dh 0x1D00 //810EC1AC 1D00

//Remove fires
origin 0x219298
dh 0x1D00 //810E9488 1D00

//Remove small bully
origin 0x21B740
dh 0x1D00 //810EB930 1D00

//Remove boss bully
origin 0x21B770
dh 0x1D00 //810EB960 1D00

//Remove spurt fire
origin 0x219238
dh 0x1D00 //810E9428 1D00

//Walk On Lava
origin 0xB728
dh 0x1000 //81250728 1000

// LLLposition
origin 0x48B1BC
dh 0x0000 //81189174 0000
dh 0x0700 //81189176 0700
dh 0xE520 //81189178 E520

// LLL face orientation
origin 0x48B1C5
dh 0x0000 //8118917C 0000

// change star posi
origin 0x48AE2C
dh 0xFFFF //8118987C FFFF
dh 0x02BA //8118987E 02BA
dh 0x181C //81189880 181C

// No Music
origin 0xD747C
addiu a1, r0, 0x0000 // 8131C47C 2405 & 8131C47E 0000

// Level Reset
origin 0x5771C
nop // 8129C71C 2400
origin 0x57740
nop // 8129C740 2400

// Prevent timer reset at start of Koopa race
origin 0x460C
nop // 8124960C 2400

// Prevent timer stop at end of Koopa race
origin 0x4630
nop // 81249630 2400

// Manual Timer
origin 0x4658
sb k1, 0x9EEE (at) // 81249658 A03B
origin 0x4660
nop // 81249660 2400
//origin 0x6014
//ori t2, t1, 0x0040 // 8024B017 0040
origin 0x8ADC
sb r0, 0x00EE (t5) // 8124DADC A1A0 & 8124DADE 00EE

// Star-Grab Timer
origin 0x8AD0
base 0x8024DAD0
lb at, 0x00 (t5)
ori t6, r0, 0x7F
beq r0, at, 0x8024DADC
origin 0x8AE4
sh t6, 0xFA (t5)

// Centisecond
origin 0x9DAB8
addiu at, r0, 0x0A
origin 0x9DAF0
mult t9, at
mflo t1
addiu at, r0, 0x03
div t1, at
mflo t2
sh t2, 0x24 (sp)
origin 0x9DB50
addiu a2, a2, 0x71D4

// Lag Frame Counter
origin 0xE1a2C
jal 0x8027EF18 // ROM 0x39F18
origin 0x3BB0 // Hijack BUF display
lui t8, 0x8034
lw t7, 0x9F20 (t8) // Read current value
lw t6, 0x9F24 (t8) // Read previous value
sw t7, 0x9F24 (t8) // Copy current value to previous value
subu t5, t7, t6 // Calculate difference between previous and current
lw a3, 0x9F28 (t8) // Load sum
addu a3, a3, t5 // Expect 2 frames difference
addiu a3, a3, 0xFFFE
origin 0x3BE4
sw a3, 0x9F28 (t8) // Save sum
origin 0x39F18 // RAM 0x8027EF18
lui t2,0x8034
lw t3,0x9F20(t2)
addiu t3, t3, 0x0001
sw t3, 0x9F20 (t2) // Add 1 to the video interrupt counter
j 0x80326C18 // Return to normal exception handling path
nop

// Lag as Lives
origin 0x3BE0
nop
origin 0x9D86C
lw a3, 0x9F28 (a3)

// Hijack Resource Meter
origin 0x2CFC
nop
origin 0x2D04
jal 0x8027E0AC // ROM 0x390AC
origin 0x390AC // RAM 0x8027E0AC

// Constant Writes
lui t0, 0x8020
lui t1, 0x8033
lui t2, 0x8034

// 120 Star File (Slot 3)
addiu v0, r0, 0x1F10
sh v0, 0x7BE8 (t0) // 81207BE8 1F10
addiu v0, r0, 0xFFCB
sh v0, 0x7BEA (t0) // 81207BEA FFCB
addiu v0, r0, 0x7FFF
sh v0, 0x7BEC (t0) // 81207BEC 7FFF
sh v0, 0x7BEE (t0) // 81207BEE 7FFF
addiu v0, r0, 0x7F7F
sh v0, 0x7BF0 (t0) // 80207BF0 007F & 80207BF1 007F
sh v0, 0x7BF2 (t0) // 80207BF2 007F & 80207BF3 007F
sh v0, 0x7BF4 (t0) // 80207BF4 007F & 80207BF5 007F
sh v0, 0x7BF6 (t0) // 80207BF6 007F & 80207BF7 007F
sh v0, 0x7BF8 (t0) // 80207BF8 007F & 80207BF9 007F
sb v0, 0x7BFA (t0) // 80207BFA 007F
addiu v0, r0, 0x0081
sb v0, 0x7BFB (t0) // 80207BFB 0081
addiu v0, r0, 0x0101
sh v0, 0x7BFC (t0) // 81207BFC 0101
addiu v0, r0, 0x0301
sh v0, 0x7BFE (t0) // 81207BFE 0301
addiu v0, r0, 0x0101
sh v0, 0x7C00 (t0) // 81207C00 0101
addiu v0, r0, 0x0181
sh v0, 0x7C02 (t0) // 81207C02 0181

// Remove Time Text
sh r0, 0x71C8 (t1) // 813371C8 0000

// Conditionals
lui t0, 0x8020
lui t1, 0x8028
lui t2, 0x8033
lui t3, 0x8034
lui t4, 0x8036

// Automatically Reset Timer at Star Select
lb at, 0x9EC9 (t3)
addiu v0, r0, 0x0004
bne at, v0, Skip01 // D0339EC9 0004
nop
sh r0, 0x9EFC (t3) // 81339EFC 0000
Skip01:

// Level Reset(L)
lb at, 0x9C31 (t3)
addiu v0, r0, 0x0020
bne at, v0, Skip02 // D0339C31 0020
nop
addiu v0, r0, 0x0008
sb v0, 0x9EAE (t3) // 80339EAE 0008
sh r0, 0x9EF2 (t3) // 81339EF2 0000
sh r0, 0x9EA8 (t3) // 81339EA8 0000
addiu v0, r0, 0x0002
sb v0, 0x9ED8 (t3) // 80339ED8 0002
addiu v0, r0, 0x0005
sh v0, 0x00A4 (t4) // 813600A4 0005
Skip02:

// Level Reset Camera Fix
lb at, 0x9ED9 (t3)
addiu v0, r0, 0x001D
beq at, v0, Skip03 // D2339ED9 001D
nop
addiu v0, r0, 0x0001
sh v0, 0x6D2A (t1) // 81286D2A 0001
Skip03:
  bne at, v0, Skip04 // D0339ED9 001D
  nop
  sh r0, 0x6D2A (t1) // 81286D2A 0000
Skip04:

// Manual Timer reset on L
lb at, 0x9C31 (t3)
addiu v0, r0, 0x0020
bne at, v0, Skip05 // D0339C31 0020
nop
sh r0, 0x9EFC (t3) // 81339EFC 0000
Skip05:

// Star Select(L+R)
lb at, 0x9C31 (t3)
addiu v0, r0, 0x0030
bne at, v0, Skip07 // D0339C31 0030
nop
addiu v0, r0, 0x0008
sb v0, 0x9EAE (t3) // 80339EAE 0008
addiu v0, r0, 0x0004
sh v0, 0x9EC8 (t3) // 81339EC8 0004
addiu v0, r0, 0x0002
sb v0, 0x9ED8 (t3) // 80339ED8 0002
sh r0, 0x9EFC (t3) // 81339EFC 0000
sw r0, 0xFED4 (t2) // 8132FED4 0000 & 8132FED6 0000
lb at, 0x9ED9 (t3)
addiu v0, r0, 0x000D
bne at, v0, Not_THI // D0339ED9 000D
nop
THI:
  addiu v0, r0, 0x010A
  sh v0, 0x9EDA (t3) // 81339EDA 020A
  beq r0, r0, Skip07
  nop
Not_THI:
  addiu v0, r0, 0x010A
  sh v0, 0x9EDA (t3) // 81339EDA 010A
Skip07:

// Lag Frame Counter
lb at, 0x9C31 (t3)
addiu v0, r0, 0x0020
bne at, v0, Skip14 // D0339C31 0020
nop
sw r0, 0x9F28 (t3) // 81339F28 0000 & 81339F2A 0000
Skip14:

// Lag Frame Counter Reset
lb at, 0x9EC9 (t3)
addiu v0, r0, 0x0004
bne at, v0, Skip15 // D0339EC9 0004
nop
sw r0, 0x9F28 (t3) // 81339F28 0000 & 81339F2A 0000
Skip15:

// Return
jr ra
nop