diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/micropython/viper_misc2.py | 21 | ||||
| -rw-r--r-- | tests/micropython/viper_misc2.py.exp | 1 |
2 files changed, 22 insertions, 0 deletions
diff --git a/tests/micropython/viper_misc2.py b/tests/micropython/viper_misc2.py new file mode 100644 index 000000000..8f0be487d --- /dev/null +++ b/tests/micropython/viper_misc2.py @@ -0,0 +1,21 @@ +# Miscellaneous viper tests + +# Test correct use of registers in load and store +@micropython.viper +def expand(dest: ptr8, source: ptr8, length: int): + n = 0 + for x in range(0, length, 2): + c = source[x] + d = source[x + 1] + dest[n] = (c & 0xE0) | ((c & 0x1C) >> 1) + n += 1 + dest[n] = ((c & 3) << 6) | ((d & 0xE0) >> 4) + n += 1 + dest[n] = ((d & 0x1C) << 3) | ((d & 3) << 2) + n += 1 + + +source = b"\xaa\xaa\xff\xff" +dest = bytearray(len(source) // 2 * 3) +expand(dest, source, len(source)) +print(dest) diff --git a/tests/micropython/viper_misc2.py.exp b/tests/micropython/viper_misc2.py.exp new file mode 100644 index 000000000..eff2f5e41 --- /dev/null +++ b/tests/micropython/viper_misc2.py.exp @@ -0,0 +1 @@ +bytearray(b'\xa4\x8aH\xee\xce\xec') |