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authorjaseg <git@jaseg.de>2023-10-02 01:23:31 +0200
committerjaseg <git@jaseg.de>2023-10-02 01:23:31 +0200
commitc8623eb4c6c1464ffd49e83126e66d71ba5bf862 (patch)
tree55151e10f1ca05f2539de59778e757819038678e /common/xorshift.c
parent67e30fa91e12b452c1a18f6c5eb8a33cdb9ec625 (diff)
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-rw-r--r--common/xorshift.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/common/xorshift.c b/common/xorshift.c
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--- /dev/null
+++ b/common/xorshift.c
@@ -0,0 +1,12 @@
+
+#include "xorshift.h"
+
+uint32_t xorshift32(uint32_t x)
+{
+ /* Algorithm "xor" from p. 4 of Marsaglia, "Xorshift RNGs" */
+ x ^= x << 13;
+ x ^= x >> 17;
+ x ^= x << 5;
+ return x;
+}
+