circuitpython/tests/micropython/viper_ptr16_load.py
David Lechner 3dc324d3f1 tests: Format all Python code with black, except tests in basics subdir.
This adds the Python files in the tests/ directory to be formatted with
./tools/codeformat.py.  The basics/ subdirectory is excluded for now so we
aren't changing too much at once.

In a few places `# fmt: off`/`# fmt: on` was used where the code had
special formatting for readability or where the test was actually testing
the specific formatting.
2020-03-30 13:21:58 +11:00

38 lines
607 B
Python

# test loading from ptr16 type
# only works on little endian machines
@micropython.viper
def get(src: ptr16) -> int:
return src[0]
@micropython.viper
def get1(src: ptr16) -> int:
return src[1]
@micropython.viper
def memadd(src: ptr16, n: int) -> int:
sum = 0
for i in range(n):
sum += src[i]
return sum
@micropython.viper
def memadd2(src_in) -> int:
src = ptr16(src_in)
n = int(len(src_in)) >> 1
sum = 0
for i in range(n):
sum += src[i]
return sum
b = bytearray(b"1234")
print(b)
print(get(b), get1(b))
print(memadd(b, 2))
print(memadd2(b))