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int16_t decode(uint8_t t)
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{
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int16_t exp = 0x8 - (0x7 & (t >> 4));
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uint16_t base = (0x1 << (exp+ 5)) - 34;
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int16_t step = 0x1 << exp;
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int16_t ret = base - step * (0xf & t);
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ret = -ret - 1 + (2 * ret + 1) * (t >> 7);
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return ret;
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} |