Dynamic Gravity [JoshuaMK]

[JoshuaMK]

Dynamic Gravity [JoshuaMK]

NOTE: Outdated by newer version.

Note: This code only works with GCN. It also only works with 1P's remote. This code utilizes memory region 0x80001790 of the Exception Vector Area. Make sure no other codes being used utilize this memory region.

This code changes gravity dynamically based on how much you hold up or down on the analog stick!

(NTSC-U)
C2576FC0 00000002
901D0218 3D808000
900C1790 00000000
C2590400 00000018
3D808000 816C1790
2C0B001E 41800040
3D808034 618CC203
896C0000 2C0B00E4
4181005C 2C0B00C9
41810044 2C0B00AE
4181002C 2C0B0020
41800074 2C0B003B
4180005C 2C0B0056
41800044 3D80XXXX
919F0000 C03F0000
48000060 3D80MMMM
919F0000 C03F0000
48000050 3D80hhhh
919F0000 C03F0000
48000040 3D80HHHH
919F0000 C03F0000
48000030 3D80LLLL
919F0000 C03F0000
48000020 3D80UUUU
919F0000 C03F0000
48000010 3D80YYYY
919F0000 C03F0000
60000000 00000000

(PAL)
C257D824 00000002
901D0218 3D808000
900C1790 00000000
C2596C24 00000018
3D808000 816C1790
2C0B001E 41800040
3D808035 618C0583
896C0000 2C0B00E4
4181005C 2C0B00C9
41810044 2C0B00AE
4181002C 2C0B0020
41800074 2C0B003B
4180005C 2C0B0056
41800044 3D80XXXX
919F0000 C03F0000
48000060 3D80MMMM
919F0000 C03F0000
48000050 3D80hhhh
919F0000 C03F0000
48000040 3D80HHHH
919F0000 C03F0000
48000030 3D80LLLL
919F0000 C03F0000
48000020 3D80UUUU
919F0000 C03F0000
48000010 3D80YYYY
919F0000 C03F0000
60000000 00000000

(NTSC-J)
C257D1A4 00000002
901D0218 3D808000
900C1790 00000000
C25965A4 00000018
3D808000 816C1790
2C0B001E 41800040
3D808034 618CFF03
896C0000 2C0B00E4
4181005C 2C0B00C9
41810044 2C0B00AE
4181002C 2C0B0020
41800074 2C0B003B
4180005C 2C0B0056
41800044 3D80XXXX
919F0000 C03F0000
48000060 3D80MMMM
919F0000 C03F0000
48000050 3D80hhhh
919F0000 C03F0000
48000040 3D80HHHH
919F0000 C03F0000
48000030 3D80LLLL
919F0000 C03F0000
48000020 3D80UUUU
919F0000 C03F0000
48000010 3D80YYYY
919F0000 C03F0000
60000000 00000000

(NTSC-K)
C256B87C 00000002
901D0218 3D808000
900C1790 00000000
C2584C7C 00000018
3D808000 816C1790
2C0B001E 41800040
3D808033 618CE583
896C0000 2C0B00E4
4181005C 2C0B00C9
41810044 2C0B00AE
4181002C 2C0B0020
41800074 2C0B003B
4180005C 2C0B0056
41800044 3D80XXXX
919F0000 C03F0000
48000060 3D80MMMM
919F0000 C03F0000
48000050 3D80hhhh
919F0000 C03F0000
48000040 3D80HHHH
919F0000 C03F0000
48000030 3D80LLLL
919F0000 C03F0000
48000020 3D80UUUU
919F0000 C03F0000
48000010 3D80YYYY
919F0000 C03F0000
60000000 00000000

---

Gravity is a float value, so use a hex to floating point calculator for help.

---

XXXX = Gravity when not in air or neutral stick in air
MMMM = Gravity when holding slightly up on analog stick in air
hhhh = Gravity when holding moderately up on analog stick in air
HHHH = Gravity when holding all the way up on analog stick in air
LLLL = Gravity when holding slightly down on analog stick in air
UUUU = Gravity when holding moderately down on analog stick in air
YYYY = Gravity when holding all the way down on analog stick in air

---

General Chart:

0000 = x0 Gravity
3f00 = x0.5 Gravity
3f20 = x0.625 Gravity
3f40 = x0.75 Gravity
3f60 = x0.875 Gravity
3f80 = x1 Gravity
4000 = x2 Gravity
4040 = x3 Gravity
4080 = x4 Gravity
40a0 = x5 Gravity
4120 = x10 Gravity

---

#########
#Source ASM#
#########

#######################
#Store Air Timer Value Into Memory#
#######################

stw r0, 0x0218 (r29)
lis r12, 0x8000
stw r0, 0x1790 (r12)

#########################
#Load Air Timer Value Into Register 11 #
#########################

lis r12, 0x8000
lwz r11, 0x1790 (r12)

############################################
#Compare r11 to Set Value and Branch to Normal Gravity if Less Than #
############################################

cmpwi r11, 30
blt normal_value

############################
#Load Analog Stick Y Axis Byte Into Memory#
############################

lis r12, 0x8034
ori r12, r12, 0xc203
lbz r11, 0 (r12)

#####################################
#Compare Y axis Byte to set values and Branch Accordingly#
#####################################

cmpwi r11, 0xe4
bgt heaviest_value
cmpwi r11, 0xc9
bgt heavier_value
cmpwi r11, 0xae
bgt heavy_value
cmpwi r11, 0x20
blt lightest_value
cmpwi r11, 0x3b
blt lighter_value
cmpwi r11, 0x56
blt light_value

################################
#Set New Value for Gravity and Branch to the End #
################################

normal_value:
lis r12, 0x3f80
stw r12, 0 (r31)
lfs f1, 0 (31)
b the_end
heavy_value:
lis r12, 0x3f95
stw r12, 0 (r31)
lfs f1, 0 (31)
b the_end
heavier_value:
lis r12, 0x3fb0
stw r12, 0 (r31)
lfs f1, 0 (31)
b the_end
heaviest_value:
lis r12, 0x3fc5
stw r12, 0 (r31)
lfs f1, 0 (r31)
b the_end
light_value:
lis r12, 0x3f65
stw r12, 0 (r31)
lfs f1, 0 (r31)
b the_end
lighter_value:
lis r12, 0x3f50
stw r12, 0 (r31)
lfs f1, 0 (r31)
b the_end
lightest_value:
lis r12, 0x3f35
stw r12, 0 (r31)
lfs f1, 0 (r31)
the_end:

---

Code Creator: JoshuaMK
Code Contributors: Hamster35000vr (Gravity RAM address used to find code that sets gravity value)