circuitpython/tests/micropython/viper_subscr_multi.py

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# test viper with multiple subscripts in a single expression
@micropython.viper
def f1(b: ptr8):
b[0] += b[1]
@micropython.viper
def f2(b: ptr8, i: int):
b[0] += b[i]
b = bytearray(b"\x01\x02")
f1(b)
print(b)
b = bytearray(b"\x01\x02")
f2(b, 1)
print(b)