old MSVC versions don't have rdtsc

use _emit instead Pointed out by Jeremy Cooper <jeremy@baymoo.org>

old MSVC versions don't have rdtsc
use _emit instead Pointed out by Jeremy Cooper <jeremy@baymoo.org>
429cf462 · Ulf Möller · c62b26fd · 429cf462
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Showing with 2 addition and 1 deletion

crypto/rand/rand_win.c crypto/rand/rand_win.c +2 -1

未找到文件。
--- a/crypto/rand/rand_win.c
+++ b/crypto/rand/rand_win.c
@@ -582,7 +582,8 @@ static void readtimer(void)
 	if (have_tsc) {
 	  __try {
 	    __asm {
-	      rdtsc
+	      _emit 0x0f
+	      _emix 0x31
 	      mov cyclecount, eax
 	      }
 	    RAND_add(&cyclecount, sizeof(cyclecount), 1);