LevelSelectDetailedExplanation

; cStick values:

; 0 = Neutral
; 1 = Left 
; 2 = Right 
; 4 = Down 
; 5 = Down, Left 
; 6 = Down, Right 
; 8 = Up
; 9 = Up, Left 
; 10 = Up, Right


; button values:
; DPad Left = 0x1 
; DPad Right = 0x2 
; DPad Down = 0x4 
; DPad Up = 0x8 
; Z = 0x10 
; R = 0x20
; L = 0x40 
; A = 0x100
; B = 0x200
; X = 0x400
; Y = 0x800
; Start = 0x1000

;=========== CODE (NTSC-U) ===========

0x0 	lis r3, 0x803E			
0x4	ori r3, r3, 0x9710		;r3 points to stageInfo 
0x8	lis r5, 0x8040
0xC	ori r5, r5, 0x4484		;r5 points to currentInput
0x10	lbz r4, 2(r3)			;r4 = loadingType 
0x14	cmpwi r4, 1			;if loadingType <= 1; checks if entering/leaving a world/episode. 
0x18	ble- 0x10				;jmp checkInput
0x1C	cmpwi r4, 13			;if loadingType  == 13; checks if the player is entering the park in Pinna
0x20	beq- 0x240				;jmp setupPinnaPark
0x24	b 0x2A4					;else jmp end

checkInput:
				
0x28	lbz r6, 1(r5)			;r6 = cStick
0x2C	lhz r7, 2(r5)			;r7 = buttons
0x30	cmpwi r6, 0			;if cStick != 0
0x34	bne- 0x18				;jmp checkCStickUpLeft
0x38	cmpwi r7, 0			;if buttons == 0 
0x3C	beq- 0x28C				;jmp end; cStick and buttons are neutral, continue as usual
0x40	cmpwi r7, 0x100			;if buttons == 0x100;
0x44	beq- 0x284				;jmp end; prevents the game from resetting when mashing A during cutscenes or normal loadings 
0x48	b 0x0F8				;jmp checkLevelReset; cStick neutral and buttons pressed 

checkCStickUpLeft:

0x4C	cmpwi r6, 9			;if cStick == 9 
0x50	beq- 0x124				;jmp checkSpecial
0x54	cmpwi r6,8			;if cStick != 8
0x58	bne- 0x0C				;continue 
0x5C	li r8,512				;else nextStage = r8 = 0x200; Bianco 
0x60	b 0x60					;jmp checkEpisode
0x64	cmpwi r6,10 			;if cStick != 10 
0x68	bne- 0x0C				;continue 
0x6C	li r8,768				;else nextStage = 0x300: Ricco 
0x70	b 0x50				        ;jmp checkEpisode 
0x74	cmpwi r6,2			;...
0x78	bne- 0x0C
0x7C	li r8,1024
0x80	b 0x40
0x84	cmpwi r6,6
0x88	bne- 0x0C
0x8C	li r8,1280
0x90	b 0x30
0x94	cmpwi r6,4
0x98	bne- 0x0C
0x9C	li r8,1536
0xA0	b 0x20
0xA4	cmpwi r6,5
0xA8	bne- 0x0C
0xAC	li r8,2048
0xB0	b 0x10				;...
0xB4	cmpwi r6,1			;if cStick != 1 
0xB8	bne- 0x210				;jmp end; Invalid value 
0xBC	li r8,2304				;else nextStage = 0x800 ;Noki 

checkEpisode:

0xC0	cmpwi r7,0			;if buttons != 0 	
0xC4	bne- 0x0C				;continue 
0xC8	li r9,0					;else nextEpisode = r9 = 0 
0xCC	b 0x180					;jmp storeData 
0xD0	cmpwi r7,64			;...
0xD4	bne- 0x0C
0xD8	li r9,1
0xDC	b 0x170
0xE0	cmpwi r7,32
0xE4	bne- 0x0C
0xE8	li r9,2
0xEC	b 0x160
0xF0	cmpwi r7,96
0xF4	bne- 0x0C
0xF8	li r9,3
0xFC	b 0x150
0x100	cmpwi r7,16
0x104	bne- 0x0C
0x108	li r9,4
0x10C	b 0x140
0x110	cmpwi r7,80
0x114	bne- 0x0C
0x118	li r9,5
0x11C	b 0x130
0x120	cmpwi r7,48
0x124	bne- 0x0C
0x128	li r9,6
0x12C	b 0x120				;...
0x130	cmpwi r7,112			;if buttons != 112; ZLR
0x134	bne- 0x194				;jmp end; Invalid value 
0x138	li r9,7					;else r9 = 7 
0x13C	b 0x110					;jmp storeData 


checkLevelReset:

0x140	cmpwi r7, 16			;if buttons != 16; Z 
0x144	bne- 0x30				;jmp checkSpecial 
0x148	lis r10, -32385			;r10 = 817F0000
0x14C	lwz r8, 0(r10)			;r8 = savedStage
0x150	cmpwi r4, 1				;if loadingType = 1; enter
0x154	beq- 0x0C				;continue 
0x158	li r8, 257				;else r8 = 0x101 
0x15C	b 0x10					;jmp setupSpecialStage 
0x160	cmpwi r8, 0			;if savedStage != 0x00000000
0x164	bne- 0x08				;jmp setupSpecialStage 
0x168	li r8, 258				;else r8 = 0x102

setupSpecialStage:

0x16C	li r9,0				;r9 = 0;
0x170	b 0xDC				;jmp storeStage

checkSpecial:

0x174	cmpwi r7, 64			;if r7 != 0x40; buttons != L
0x178	bne- 0x10				;continue 
0x17C	li r8, 0x1400				;else r8 = 0x1400; Airstrip 2 
0x180	li r9, 0x2E00				;r9 = 0x2E00; Bianco 6 
0x184	b 0xB8					;jmp switchSpecial
0x188	cmpwi r7, 32			;...
0x18C	bne- 0x10
0x190	li r8, 0x1500
0x194	li r9, 0x3000
0x198	B 0xA4
0x19C	cmpwi r7, 96
0x1A0	bne- 0x10
0x1A4	li r8, 0x1600
0x1A8	li r9, 0x2000
0x1AC	b 0x90
0x1B0	cmpwi r7, 80
0x1B4	bne- 0x10
0x1B8	li r8, 0x1700
0x1BC	li r9, 0x2900
0x1C0	b 0x7C
0x1C4	cmpwi r7, 48
0x1C8	bne- 0x10
0x1CC	li r8, 0x1800
0x1D0	li r9, 0x3300
0x1D4	b 0x68
0x1D8	cmpwi r7, 112
0x1DC	bne- 0x10
0x1E0	li r8, 0x1D00
0x1E4	li r9, 0x2800
0x1E8	b 0x54
0x1EC	cmpwi r7, 1024
0x1F0	bne- 0x0C
0x1F4	li r9, 0x2A00
0x1F8	b 0x44
0x1FC	cmpwi r7, 1088
0x200	bne- 0x0C
0x204	li r9, 0x1F00
0x208	b 0x34
0x20C	cmpwi r7, 2048
0x210	bne- 0x0C
0x214	li r9, 0x3A01
0x218	b 0x24
0x21C	cmpwi r7, 2112
0x220	bne- 0x0C
0x224	li r9, 0x3C00
0x228	b 0x14				;...
0x22C	cmpwi r7, 16			;if r7 == 0x10; Z again but this time for secrets
0x230	li r9, 0x3200			;r9 = 0x3200; Pinna 2 
0x234	beq- 0x08				;jmp switchSpecial 
0x238	li r9, 0x2F00				;else r9 = 0x2F00; Entering any combination but L to LRZ loads Bianco 3, will be changed in a future update

switchSpecial:
 
0x23C	cmpwi r6, 9			;if r6 == 9; if cStick Up Left, load secret stage 		
0x240	beq- 0x08				;continue 
0x244	b -0xD8					;else jmp setupSpecialStage
0x248	li r8, 0			;r8 = 0; clear r8, it holds all the special stages from checkSpecial 

storeData:

0x24C	add r8,r8,r9			;r8 = r8 + r9; r8 = 0xAABB, where AA is the stage and BB the episode	
0x250	stw r8,0(r3)			;store r8 as nextStage 
0x254	lis r3,-32385			;r3 = 0x817F0000
0x258	stw r8,0(r3)			;store r8 at r3; backup for level reset 
0x25C	b 0x6C				;jmp end; Done!

setupPinnaPark:

0x260	li r8,3328			;r8 = 0xD00 
0x264	lwz r4,-4(r3)   		;r4 = 4B at (r3)-4; r4 = previousStage
0x268	cmpwi r4,1280			;if r4 != 0x500; if previousStage == Pinna 1, set Pinna Park event 1 
0x26C	bne- 0x0C				;continue 
0x270	li r9,0					;else r9 = 0 
0x274	b 0xFFFFFFD8				;jmp storeData 
0x278	cmpwi r4,1282			;if r4 != 0x502; if previousStage == Pinna 3, set Pinna Park Event 2 
0x27C	bne- 0x0C				;continue 
0x280	li r9,1					;else r9 = 1 
0x284	b 0xFFFFFFC8				;jmp storeData 
0x288	cmpwi r4,1284 			;...
0x28C	bne- 0x0C
0x290	li r9,2
0x294	b 0xFFFFFFB8
0x298	cmpwi r4,1285
0x29C	bne- 0x0C
0x2A0	li r9,3
0x2A4	b 0xFFFFFFA8
0x2A8	cmpwi r4,1286
0x2AC	bne- 0x0C
0x2B0	li r9,4
0x2B4	b 0xFFFFFF98
0x2B8	cmpwi r4,1287
0x2BC	bne+ 0xFFFFFF90
0x2C0	li r9,5				;if none of the previous, set Pinna Park Event 5 (the one before balloons)
0x2C4	b 0xFFFFFF88			;jmp storeData 			

end: 

0x2C8	lwz r3,32(r31)			;original function