kopia lustrzana https://github.com/micropython/micropython
43 wiersze
1.2 KiB
Python
43 wiersze
1.2 KiB
Python
import sys
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try:
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import uctypes
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except ImportError:
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print("SKIP")
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raise SystemExit
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if sys.byteorder != "little":
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print("SKIP")
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raise SystemExit
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desc = {
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# arr is array at offset 0, of UINT8 elements, array size is 2
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"arr": (uctypes.ARRAY | 0, uctypes.UINT8 | 2),
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# arr2 is array at offset 0, size 2, of structures defined recursively
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"arr2": (uctypes.ARRAY | 0, 2, {"b": uctypes.UINT8 | 0}),
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"arr3": (uctypes.ARRAY | 2, uctypes.UINT16 | 2),
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# aligned
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"arr5": (uctypes.ARRAY | 0, uctypes.UINT32 | 1),
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"arr7": (uctypes.ARRAY | 0, 1, {"l": uctypes.UINT32 | 0}),
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"arr8": (uctypes.ARRAY | 0, uctypes.INT8 | 1),
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"arr9": (uctypes.ARRAY | 0, uctypes.INT16 | 1),
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"arr10": (uctypes.ARRAY | 0, uctypes.INT32 | 1),
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"arr11": (uctypes.ARRAY | 0, uctypes.INT64 | 1),
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"arr12": (uctypes.ARRAY | 0, uctypes.UINT64 | 1),
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"arr13": (uctypes.ARRAY | 1, 1, {"l": {}}),
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}
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data = bytearray(8)
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S = uctypes.struct(uctypes.addressof(data), desc)
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# assign int64
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S.arr11[0] = 0x11223344
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print(hex(S.arr11[0]))
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assert hex(S.arr11[0]) == "0x11223344"
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# assign uint64
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S.arr12[0] = 0x11223344
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print(hex(S.arr12[0]))
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assert hex(S.arr12[0]) == "0x11223344"
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