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33 lines
897 B
C
33 lines
897 B
C
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#ifndef COSMOPOLITAN_THIRD_PARTY_MBEDTLS_MATH_H_
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#define COSMOPOLITAN_THIRD_PARTY_MBEDTLS_MATH_H_
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#define ADC(R, A, B, CI, CO) \
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do { \
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uint64_t Ta = A; \
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uint64_t Tb = B; \
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CO = (Ta += CI) < CI; \
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CO += (Ta += Tb) < Tb; \
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R = Ta; \
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} while (0)
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#define SBB(R, A, B, CI, CO) \
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do { \
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uint64_t Ta = A; \
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uint64_t Tb = B; \
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uint64_t Tc = Ta < CI; \
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Ta -= CI; \
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CO = (Ta < Tb) + Tc; \
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Ta -= Tb; \
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R = Ta; \
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} while (0)
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#define MADD(a, b, c0, c1, c2) \
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t = (uint128_t)a * b; \
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t += c0; \
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c0 = t; \
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h = t >> 64; \
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c1 += h; \
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if (c1 < h) c2++
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#endif /* COSMOPOLITAN_THIRD_PARTY_MBEDTLS_MATH_H_ */
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