14 lines
441 B
Diff
14 lines
441 B
Diff
diff --git a/c/blake3_dispatch.c b/c/blake3_dispatch.c
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index af6c3da..dce85b4 100644
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--- a/c/blake3_dispatch.c
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+++ b/c/blake3_dispatch.c
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@@ -31,7 +31,7 @@
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#define ATOMIC_INT _Atomic int
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#define ATOMIC_LOAD(x) x
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#define ATOMIC_STORE(x, y) x = y
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-#elif defined(_MSC_VER)
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+#elif defined(IS_X86) && defined(_MSC_VER)
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#define ATOMIC_INT LONG
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#define ATOMIC_LOAD(x) InterlockedOr(&x, 0)
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#define ATOMIC_STORE(x, y) InterlockedExchange(&x, y)
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