.include "SM64Functions.txt"

// Custom loop function 0x802CB1C0, 0x2C bytes (11 instructions) left.
.org 0x861C0
ADDIU SP, SP, 0xFFE8
SW RA, 0x14 (SP)
LUI T0, 0x8034
LW T2, 0xB17C(T0) // T2 = current action

LUI T1, 0x0C00
ORI T1, T1, 0x0203 // T1 = 0x0C000203, Sleeping
BNE T2, T1, 802CB1C0_end // Branch to end if Mario is not sleeping.
NOP

LW T3, 0xB1D0(T0) // Load word at 0x8033B1D0 (For this example it's a timer)
ORI T4, R0, 0x20
BNE T3, T4, 802CB1C0_incrementTimer
NOP

LUI A0, 0x8036
LW A0, 0x1158(A0) // A0 = Pointer to Mario object.
LUI A2, 0x1300
ORI A2, A2, 0x40EC // A2 = 0x130040EC, 1-UP behavior.
JAL @SpawnObj // 0x8029EDCC
ORI A1, R0, 0xD4 // 1-UP Model ID.
// V0 = pointer to newly spawned 1-UP object.

LUI T4, 0x41A0 // 0x41A00000 = (float) 20.0
MTC1 T4, F0 // Move value at T4 to float register F0
LWC1 F2, 0xA4(V0) // Get Y position of 1-UP
ADD.S F2, F2, F0 // Add 20.0 to Y position
SWC1 F2, 0xA4(V0) // Store new Y position

802CB1C0_incrementTimer:
ADDIU T3, T3, 0x01
LUI T0, 0x8034
SW T3, 0xB1D0(T0)

802CB1C0_end:
LW RA, 0x14 (SP)
JR RA
ADDIU SP, SP, 0x18