Key Remapper; Classic [Vega]

Classic Controller only.

This code allows you to select a Button (Button 1) that will activate another Button (Button 2). Button 1's original function is disabled. Button 2 still behaves normally.

XXXX = Button 1
YYYY = Button 2

X/Y Values:
0001 = Up
0002 = Left
0004 = Z (Right)
0008 = X
0010 = A
0020 = Y
0040 = B
0080 = Z (Left)
0200 = R
0400 = +
0800 = Home
1000 = -
2000 = L
4000 = Down
8000 = Right

PAL
C225AD74 00000007
881F005C 2C000002
4182000C 2C000007
4C820020 3960XXXX
819F0060 7D805839
4DA20020 7D8C5A78
618CYYYY 919F0060
4E800020 00000000

Code creator: Vega

#C2 Hooked Address (blr of KPadRead)
#NTSC-U Launch 802596A8
#NTSC-U Rev1 8025A278
#PAL 8025AD74

#Symbols
.set ExtTypeOffset, 0x5C
.set ChuckDumpOffset, 0x0
.set ClassicDumpOffset, 0x60
.set A, 0x10
.set Y, 0x20
.set B, 0x40
.set Chuck, 0x1
.set Classic, 0x2
.set ChuckMPlus, 0x6
.set ClassicMPlus, 0x7

#Make sure classic controller is being used
#If not, SKIP code (blr)
#r31 = Ptr to KPADStatus Struct
check_kpad:
lbz r0, ExtTypeOffset (r31)
cmpwi r0, Classic
beq- set_button_1
cmpwi r0, ClassicMPlus
bnelr-

#Set Button 1
set_button_1:
li r11, 0x0040 #B used for assembling, adjust this to your needs

#Load current buttons
lwz r12, ClassicDumpOffset (r31)

#Was Button 1 pressed?
and. r0, r12, r11
beqlr+ #End code

#Button 1 was pressed. Remove Button 1's value.
xor r12, r12, r11

#Place in Button 2's value
ori r12, r12, 0x0020 #Y used for assembling, adjust this to your needs

#Write new buttons, end code
write_new_buttons:
stw r12, ClassicDumpOffset (r31)
blr