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authorNicholas Noll <nbnoll@eml.cc>2021-11-11 16:31:58 -0800
committerNicholas Noll <nbnoll@eml.cc>2021-11-11 16:31:58 -0800
commit9695ea005d4af93dcd60f74f10fd3c54499a182f (patch)
tree3e1a9abb9456ba07c0c97cd3d691f6a2df115791 /sys/base/rng/base.c
parentc65794b50b1bc729e7a4e940b76a973afa3030b9 (diff)
chore: split up base library into individual files for smaller binaries
Diffstat (limited to 'sys/base/rng/base.c')
-rw-r--r--sys/base/rng/base.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/sys/base/rng/base.c b/sys/base/rng/base.c
new file mode 100644
index 0000000..9ec496e
--- /dev/null
+++ b/sys/base/rng/base.c
@@ -0,0 +1,24 @@
+#include "internal.h"
+
+static uint64
+splitmix64(struct Mix *state)
+{
+ uint64 result = state->s;
+
+ state->s = result + 0x9E3779B97f4A7C15;
+ result = (result ^ (result >> 30)) * 0xBF58476D1CE4E5B9;
+ result = (result ^ (result >> 27)) * 0x94D049BB133111EB;
+ return result ^ (result >> 31);
+}
+
+int
+rng·init(uint64 seed)
+{
+ int i;
+ Mix smstate = {seed};
+
+ for(i=0; i < 4; i++)
+ rng·RNG.s[i] = splitmix64(&smstate);
+
+ return 0;
+}