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https://github.com/SebastianWendel/nixpkgs.git
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17 lines
698 B
Diff
17 lines
698 B
Diff
diff --git a/src/utils/lib/CryptoPP.cc b/src/utils/lib/CryptoPP.cc
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index 9208e1c..788df83 100644
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--- a/src/utils/lib/CryptoPP.cc
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+++ b/src/utils/lib/CryptoPP.cc
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@@ -1880,7 +1880,10 @@ public:
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#elif defined(__x86_64__)
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__asm__("mulq %3" : "=d" (r.m_halfs.high), "=a" (r.m_halfs.low) : "a" (a), "rm" (b) : "cc");
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#elif defined(__mips64)
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- __asm__("dmultu %2,%3" : "=h" (r.m_halfs.high), "=l" (r.m_halfs.low) : "r" (a), "r" (b));
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+ typedef unsigned int uint128_t __attribute__((mode(TI)));
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+ uint128_t tmp = (uint128_t) a * b;
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+ r.m_halfs.high = tmp >> 64;
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+ r.m_halfs.low = (tmp << 64) >> 64;
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#elif defined(_M_IX86)
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// for testing
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word64 t = (word64)a * b;
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