circuitpython/tests/micropython/viper_ptr8_load.py
Damien George 91cfd414c0 py: Implement native load for viper.
Viper can now do: ptr8(buf)[0], which loads a byte from a buffer using
machine instructions.
2014-10-12 16:59:29 +01:00

28 lines
475 B
Python

# test loading from ptr8 type
@micropython.viper
def get(src:ptr8) -> int:
return src[0]
@micropython.viper
def memadd(src:ptr8, n:int) -> int:
sum = 0
for i in range(n):
sum += src[i]
return sum
@micropython.viper
def memadd2(src_in) -> int:
src = ptr8(src_in)
n = int(len(src_in))
sum = 0
for i in range(n):
sum += src[i]
return sum
b = bytearray(b'1234')
print(b)
print(get(b))
print(memadd(b, 4))
print(memadd2(b))