1 files changed, 13 insertions, 0 deletions

diff --git a/rdtsc.S b/rdtsc.S
new file mode 100644
index 0000000..fcac04d
--- /dev/null
+++ b/rdtsc.S
@@ -0,0 +1,13 @@
+global rdtsc
+
+section .text
+rdtsc:
+	mfence
+	lfence
+	rdtsc
+	lfence
+	shl rdx, 32
+	mov edx, eax
+	mov rax, rdx
+	ret
+