waits for ly 150
enables lyc
sets lyc to 152
interrupt enable

on int
jumps to 0x1000
does a bunch of nops
reads ly
outputs value of ly in hex

DMG-08 / CGB:
lycint152_ly153_1.gb should output 98
lycint152_ly153_2.gb should output 99
lycint152_ly153_3.gb should output 00