kopia lustrzana https://github.com/micropython/micropython
41 wiersze
810 B
Python
41 wiersze
810 B
Python
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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desc = {
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"f32": uctypes.FLOAT32 | 0,
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"f64": uctypes.FLOAT64 | 0,
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"uf64": uctypes.FLOAT64 | 2, # unaligned
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}
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data = bytearray(10)
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S = uctypes.struct(uctypes.addressof(data), desc, uctypes.LITTLE_ENDIAN)
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S.f32 = 12.34
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print("%.4f" % S.f32)
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S.f64 = 12.34
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print("%.4f" % S.f64)
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S.uf64 = 12.34
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print("%.4f" % S.uf64)
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# array of float/double
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desc = {
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"af32": (uctypes.ARRAY | 0, uctypes.FLOAT32 | 2),
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"af64": (uctypes.ARRAY | 0, uctypes.FLOAT64 | 2),
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}
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data = bytearray(16)
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S = uctypes.struct(uctypes.addressof(data), desc, uctypes.LITTLE_ENDIAN)
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S.af32[0] = 1
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S.af32[1] = 2
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print("%.4f %.4f" % (S.af32[0], S.af32[1]), data)
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S.af64[0] = 1
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S.af64[1] = 2
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print("%.4f %.4f" % (S.af64[0], S.af64[1]), data)
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