1 files changed, 17 insertions, 0 deletions
diff --git a/src/example/memcpy.s b/src/example/memcpy.s
new file mode 100644
index 0000000..5f6318a
--- /dev/null
+++ b/src/example/memcpy.s
@@ -0,0 +1,17 @@
+    .text
+    .balign 4
+    .global memcpy
+    # void *memcpy(void* dest, const void* src, size_t n)
+    # a0=dest, a1=src, a2=n
+    #
+  memcpy:
+      mv a3, a0 # Copy destination
+  loop:
+    vsetvli t0, a2, e8, m8, ta, ma   # Vectors of 8b
+    vle8.v v0, (a1)               # Load bytes
+      add a1, a1, t0              # Bump pointer
+      sub a2, a2, t0              # Decrement count
+    vse8.v v0, (a3)               # Store bytes
+      add a3, a3, t0              # Bump pointer
+      bnez a2, loop               # Any more?
+      ret                         # Return